Blue Star Chiller Air & Water Cooled Screw Chiller R22 DX Manual

Air Cooled and Water Cooled Screw Chillers High on reliability Low on operating costs

USER’S MANUAL

SCREW CHILLER (Air & Water Cooled)

Revised January 2008 No part of this publication may be reproduced in any manner whatsoever without permission in writing from the Executive Vice President, Airconditioning Projects Division, Blue Star Limited. While due care has been taken to avoid errors or misinterpretation, Blue Star Limited is neither liable nor responsible for consequence of any action taken, on the basis of this publication. Since ASHRAE standards use the FPS system, FPS nomenclature is used in some places in this publication for convenient reference. Published by Blue Star Limited, Airconditioning Projects Division. For restricted circulation only. Not for sale.

2

USER'S MANUAL

Contents Introduction ...................................................................................................................... 4 Features ........................................................................................................................... 5 Nomenclature.................................................................................................................... 8 Technical Specifications .................................................................................................... 9 Rigging and Installation .................................................................................................... 27 Carel Controller ............................................................................................................... 30 Screw Compressor ......................................................................................................... 47 Pre start up, Testing, Commissioning and Operation ....................................................... 54 Trouble Shooting ............................................................................................................. 84 Maintenance .................................................................................................................... 87 Spares Part List .............................................................................................................. 90 Field Feed Back Form ....................................................................................................114 Commissioning and Handing over report ........................................................................116 Water Quality .................................................................................................................117 Log Report .....................................................................................................................118 Warranty Claim Form .....................................................................................................119 Warranty ....................................................................................................................... 120 Blue Star Service Offices .............................................................................................. 121

3


Introduction Blue Star, India’s preferred Air conditioning Company has been providing expert cooling solutions for over six decades. It is with this expertise Blue Star brings to you a wide range of Air and Water Cooled Screw Chillers, manufactured at its ISO 9001 factory with world class capabilities. These Chillers which operate on HCFC-22 refrigerant come in a quality range of eleven models varying from 75 TR – 366 TR in the air cooled version and 115 TR – 400 TR in the water cooled version. The condensers are designed for operation under a wide range of ambient conditions. Due to lesser moving parts, these chillers are reliable and rugged. Further, with its automatic step capacity control, it provides better efficiency under part loads making it ideal for varying load applications such as office spaces, hotels, hospitals, malls and multiplexes. In short, these chillers offer reliable, energy efficient performance year after year.

4

USER'S MANUAL

Features Compressor The BSC Series semi hermetic screw compressors incorporated in the chillers follow state-of-the-art manufacturing processes which are ISO 9001 certified and use high precision machinery. The salient features of these compressors are:

•

Highly efficient with low noise levels

•

Tested in accordance with ARI Standards

•

Due to few moving parts such as Male and Female Screws and Slider valve, these compressors have minimal wear and tear

•

Each compressor has the latest 5 to 6 Patented Profile design, with separate Radial and Axial force Bearings, Built-in Oil Separator, PTC Motor winding protection, Discharge temperature protection with its controller, Oil level switch and Oil differential pressure switch. This guarantees reliability and long life of bearings under heavy working operating conditions.

•

Each Compressor has Step capacity control from 25% to 100%, making it suitable for part load applications and efficient under part load conditions. The capacity control also helps in limiting the starting current.

Liquid Injection The refrigerant suction gas cools the winding of the Semi hermetic Screw Compressor Motor. During part load operation where the suction gas circulation is less, as an abundant precaution, liquid refrigerant is injected to the suction side of the compressor to cool the motor winding. Liquid injection during this period keeps the motor winding temperature within limits. This is provided as a standard feature to enhance the life of the compressor.

Evaporator The shell and tube evaporator has inner grooved copper tubes for better heat transfer. The tubes are designed to optimize for refrigerant and water velocities.

5


Control Centre The control centre is mounted in the framework of the chiller. It is provided with an advanced microprocessor control panel which has unique features and advantages.

•

The cooler outlet temperature can be controlled accurately within a close tolerance of + 0.5°F

•

In-built time delays for compressor single phase / phase reversal protection and anti freeze protection

•

Password protection at two levels.

Optional features in Control Centre

•

RS 485 port & TCP/ IP web gate for remote connectivity, fault indication and status facility

•

PC connectivity and remote monitoring without BMS through dedicated telephone line, Gateway and Modem.

•

BMS compatibility with JC N2, BACnet and Modbus protocol with Translator.

•

Windows based support system to provide complete status on all operations both locally and remotely. History, static and dynamic graphing to aid in commissioning, trouble shooting and evaluation. These features help in accurate operation and protection of the chiller.

Following additional features are available in Air Cooled version:

Economiser Refrigerant liquid to liquid plate type heat exchanger is provided for the economiser system. The liquid refrigerant is sub cooled to enhance the capacity thereby reducing power consumption (IKW/ TR) and enhancing the Coefficient of Performance (COP).

Oil Cooler Effective lubrication of bearing depends on the viscosity of lubricant, which in turn depends on the oil temperature. To ensure effective lubrication for longevity, oil cooler is provided as a standard option for Aircooled Application.

6

USER'S MANUAL

Air cooled condenser The air cooled condenser coils uses copper tubes and aluminum fins. The inner grooved type copper tubes used in the condenser provide increased surface area for better heat transfer.

Fans The propeller type fan profiles are with 5 lobes, bird wing design which optimizes both the noise level and the power consumption against required air flow and static pressure.

Springs Specially designed springs are supplied along with the units to minimize the transmission of vibration.

Optional items available in air cooled version are:

• Hydrophobic coated aluminium fins • Coil protection guards

7


Nomenclature Nomenclature - Air Cooled Chiller L

C

A

X

1 - 075

D i A

REVISION REFRIGERANT R22 DIRECT EXPANSION LIQUID

NOMINAL CAPACITY NO. OF COMPRESSORS

CHILLER

SCREW COMPRESSOR

AIR COOLED

Nomenclature - Water Cooled Chiller L

C

W

X

1 - 115 D i B

REVISION REFRIGERANT R22 DIRECT EXPANSION LIQUID

NOMINAL CAPACITY

CHILLER

WATER COOLED

8

NO. OF COMPRESSORS SCREW COMPRESSOR

USER'S MANUAL

Technical Specifications Technical Specification for Air Cooled Screw Chiller (Single Compressor) Description Nominal Cooling Capacity

Unit

LCAX1-075 D i A

LCAX1-102 D i A

LCAX 1-145 D i A

LCAX1-206 D i A

KW (TR)

263.7 (75)

359.3 (102)

509.82(145)

724.29 (206)

BSC-075A

BSC-105A

BSC-145A

BSC-210A

1

1

1

1

Compressor

Semihermetic Screw

Model Quantity

No.

Motor type Operating Speed

Semi-hermetic Refrigerant Cooled, 3Ph., 2 Pole Squirrel Cage, Induction Motor RPM

2950

Power Supply

2950

2950

2950

400 V(+/- 10%) , 3 Ph. , 50Hz

Ccompressor Rated Current.

Amp.

131.9

182.6

250.9

357

Compressor Locked Rotor Current

Amp.

730

735

1100

1760

Compressor Starting Current

Amp.

230

245

370

590

F

F

F

F

Class of Insulation Compressor Power Consumption

kW

81.1

112.3

154.7

219.8

Unit starting Current

Amps

235

252.5

380

605

Unit Maximum Full Load Current

Amp.

180

251

345

490

kW

85.9

119.5

164.3

234.2

Unit Power Consumption R-22 Refrigerant Charge Oil Charge (Blue Star ACS)

Kg

67

90

130

175

Litres/compr

16

16

23

28

Sq. Mt.(Sq Ft)

10.28 (110)

14.9 (160)

19.8 (213)

29.7(320)

No.

3

3

3

3

9.5 x 0.304

9.5 x 0.304

Condenser Total Face Area Rows Deep Tube Material (D) OD x Thickness

3/8" Inner grooved,.Copper mm x mm

9.5 x 0.304

9.5 x 0.304

Type of Aluminium Fins

Super Slit

Fins per Inch

14

14

14

14

915

915

915

915

Fan for Air Cooled Condenser Fan Dia

mm

Quantity

No.

4

6

8

12

Air Flow

CFM

48,000

72,000

96000

1,44,000

No.

4

6

8

12

Speed

RPM

700

700

700

700

Full Load Current

Amp.

2.6

2.6

2.6

2.6

KW

1.2

1.2

1.2

1.2

Condenser Fan Motor Type Quantity

Power Input

Totally enclosed, Pad Mounted

9


Technical Specification for Air Cooled Screw Chiller (Single Compressor) Description

Unit

LCAX1-075 D i A

LCAX1-102 D i A

LCAX 1-145 D i A

LCAX1-206 D i A

DX-Cooler Model

YCH-92A

YCH-103A

YCH-152A

YCH-222A

Shell ID

mm

311.2

371

419.1

488

Shell Thickness

mm

6

8

8

8

Tube Type and Material

Inner Grooved Tubes with External Plain

No. of Tubes Tube OD and Thickness Tube Length

Nos

196

252

310

508

IN

5/8" OD * 0.031

5/8" OD * 0.031

5/8" OD * 0.031

5/8" OD * 0.031

FT

7

7

8

8

Surface Area Inside

Sq. FT

347.39

446.64

627.93

1029

Surface Area Outside

Sq. FT.

224.37

290.09

407.75

668.00

Nos

1

1

1

1

No of Pass (water side) No of Pass (Refrigerant side)

Nos

4

4

4

4

No of Refrigerant Circuit

NOS

1

1

1

1

Water Connection Size In/Out

INCH

6" NB

6" NB

6" NB

8" NB

Min..

USGPM

150

204

290

412

Max..

USGPM

225

306

435

618

Water Flow Rate

Expansion Valve

Thermostatic

Economiser

Brazed Plate Heat Exchanger

Overall Dimension Length

mm

2700

3800

4820

7260

Wideth

mm

2040

2040

2040

2040

Height

mm

2486

2495

2495

2495

Net Weight (approx)

Kg.

2600

3300

4180

6050

Operating Weight (approx)

Kg.

2677

3382

4358

6250

Rating Conditions 1. Entering Air over Condenser Temperature: 95oF 2. Entering Cooler Water Temperature: 54oF, Leaving Cooler Water Temperature: 44oF 3. Cooler Fouling Factor : 0.0001 Hr. Sq.ft.Deg. F/BTU

10

USER'S MANUAL

Technical Specification for Air Cooled Screw Chiller (Twin Compressors) Description Nominal Cooling Capacity

Units

LCAX2-150 D i A

LCAX2-177 D i A

LCAX2-204 D i A

LCAX 2-247 D i A

KW (TR)

527.4 (150)

622.3(177)

717.2 (204)

868.4(247)

Compressor

Semihermetic Screw

Model Quantity

No.


BSC-075A

BSC-075A + BSC-105A

BSC-105A

BSC-105A + BSC-145A

2

2

2

2


2950

Power Supply

2950

2950

2950

400 V(+/- 10%) , 3 Ph., 50Hz


Amp.

263.8 (131.9 X 2)

314.5 (131.9 + 182.6)

365.2 (182.6 X 2)

433.5 (182.6 + 250.9)


Amp.

685, 685

685, 735

735, 735

735, 1100


Amp.

230, 230

230, 245

245, 245

245, 370

F

F

F

F


kW

162.2

192.3

224.6

267.3


Amps

377

397

450

578


Amp.

360

430

502

596

Unit Power Consumption

kW

171.8

204.3

239

284.1

R-22 Refrigerant Charge

Kg

135

159

184

222

Litres/compr

16 + 16

16 + 16

16 + 16

18+23

Sq. Mt.(Sq Ft)

19.8 (213)

9.84 (106) + 19.8 (213)

29.7(320)

34.6(373)

No.

3

3/2

3

3

Oil Charge (Blue Star ACS)


3/8" Inner grooved,.Copper mm x mm

9.5 x 0.304

9.5 x 0.304


9.5 x 0.304

9.5 x 0.304

Super Slit

Fins per Inch

14

14

14

14


mm

915

915

915

915

Quantity

No.

8

12

12

14

Air Flow

CFM

96,000

144,000

144,000

168,000

Condenser Fan Moror Type


Quantity

No.

8

12

12

14

Speed

RPM

700

700

700

700

Full Load Current

Amp.

2.6

2.6

2.6

2.6

KW

1.2

1.2

1.2

1.2

Power Input

11


Technical Specification for Air Cooled Screw Chiller (Twin Compressors) Description

Units

LCAX2-150 D i A

LCAX2-177 D i A

LCAX2-204 D i A

LCAX 2-247 D i A

YCH-177 A

YCH-202A

YCH-222 A

YCH103A+YCH-152A

DX-Cooler Model Shell ID

mm

419.1

445

488

371 + 419.1

Shell Thickness

mm

8

8

8

8

Tube Type and Material


No. of Tubes

Nos

378

412

508

252+310

Tube OD and Thickness

IN

5/8" OD * 0.031

5/8" OD * 0.031

5/8" OD * 0.031

5/8" OD * 0.031

Tube Length

FT

8

8

8

7'+8'

Surface Area Inside

Sq. FT

765.67

834.54

1029

446+627


Sq. FT.

497.19

541.91

668.00

290+407

No of Pass (water side)

Nos

1

1

1

1

No of Pass (Refrigerant side)

Nos

4

4

4

4


NOS

2

2

2

2


INCH

8" NB

8" NB

8" NB

6'’NB+6'’NB

Min..

USGPM

300

354

408

494

Max..

USGPM

450

531

612

741

Water Flow Rate

Expansion Valve

Thermostatic

Economiser



mm

4820

7260

7260

8630

Wideth

mm

2040

2040

2040

2040

Height

mm

2495

2495

2495

2495

Net Weight (approx)

Kg.

4700

5300

6300

7350


Kg.

4873

5485

6500

7618


12

USER'S MANUAL

Technical Specification for Air Cooled Screw Chiller (Twin Compressors) Description Nominal Cooling Capacity

Units

LCAX2-290 D i A

LCAX2-320 D i A

LCAX2-366 D i A

KW (TR)

1019.6(290)

1125.1(320)

1286.8.1(366)

Compressor

Semihermetic Screw

Model Quantity

No.


BSC-145A + BSC-145A

BSC-160A

BSC-160A +BSC-210A

2

2

2


Power Supply

2950

2950

2950

400V(+/- 10%), 3Ph., 50Hz

400V(+/- 10%), 3Ph., 50Hz

400V(+/- 10%), 3Ph., 50Hz


Amp.

502 (250.9 + 250.9)

552 (276 X 2)

633 (276 + 357)


Amp.

1100, 1100

1480, 1480

1480, 1760


Amp.

370, 370

495, 495

495, 590

F

F

F

kW

309.4

336.6

389.4


Amps

651

808

903


Amp.

690

766

867

kW

328.6

360.6

415.8

Kg

265

288

329.4

Litres/compr

23+23

23+23

23+28

Sq. Mt.(Sq Ft)

39.6(426)

39.6(426)

49.53(533)

No.

3

4

3

mm x mm

9.5 x 0.304


Unit Power Consumption R-22 Refrigerant Charge Oil Charge (Blue Star ACS)


3/8" Inner grooved,.Copper


9.5 x 0.304

9.5 x 0.304

Super Slit

Fins per Inch

14

14

16


mm

915

915

915

Quantity

No.

16

16

20

Air Flow

CFM

192,000

232,000

260,000

Condenser Fan Moror Type


Quantity

No.

16

16

20

Speed

RPM

700

860

700/860

Full Load Current

Amp.

2.6

3.5

3.5

KW

1.2

1.5

1.2/1.5

YCH-152A+YCH152A

YCH-177 A+ YCH177A

YCH-177A+YCH222A

419.1+419.1

419.1+419.1

419.1+488

Power Input

DX-Cooler Model Shell ID

mm

13


Technical Specification for Air Cooled Screw Chiller (Twin Compressors) Description

Units

LCAX2-290 D i A

LCAX2-320 D i A

LCAX2-366 D i A

mm

8

8

8

Nos

310+310

378 +378

378+508


IN

5/8" OD * 0.031

5/8" OD * 0.031

5/8" OD * 0.031

Tube Length

FT

8+8

8+8

8 + 8

Shell Thickness Tube Type and Material


No. of Tubes

Surface Area Inside

Sq. FT

627+627

765.67+765.67

765.67 + 1029


Sq. FT.

407+407

497.19+497.19

497.2 + 668

No of Pass (water side)

Nos

1

1

1

No of Pass (Refrigerant side)

Nos

4

4

4


NOS

2

2

2


INCH

6'’NB+6'’NB

8" NB+8'’NB

8" NB + 8'’NB

Min..

USGPM

580

640

732

Max..

USGPM

870

960

1098

Water Flow Rate

Expansion Valve

Thermostatic

Economiser



mm

9650

9650

12090

Width

mm

2040

2040

2040

Height

mm

2495

2495

2495

Net Weight (approx)

Kg.

8034

9135

9753


Kg.

8390

9430

10126


14

USER'S MANUAL

Technical Specification for Water Cooled Screw Chiller (Single Compressor) Description Nominal Cooling capacity

Units

LCWX1-115 D i B

LCWX1-135 D i B

LCWX1-160 D i B

KW(TR)

404.5 (115)

474.8( 135)

562.7 (160)

COMPRESSOR :

Semi Hermetic Screw

Model Quantity

No.

Motor Type

BSC-105A

BSC-130W

BSC-145A

1

1

1

Refrigerant Cooled Semi-hermetic, 3Ph., 2 Pole, Squirrel Cage Induction Motor

Operating Speed

RPM

Power Supply

2950 400 V(+/- 10%), 3 PH., 50HZ

2950

2950

400 V(+/- 10%), 3 PH., 50HZ 400 V(+/- 10%), 3 PH., 50HZ

Compressor rated Current

Amp.

132.4

155

183.5

Max. Compressor Operating Current

Amp.

160

185

220


Amp.

735

965

1100

Compressor starting Current

Amp.

245

325

370

Unit Starting Current

Amp.

247

327

365

F

F

F

KW

82.4

96.2

110

Ltrs.

16

18

23

Kg

95

112

136

YCD-101A

YCD-131A

YCD-151A

Class of Motor Insulation Power Consumption Type of Oil

Blue Star ACS

Oil Charge Refrigerant R 22 Charge

CONDENSER : Model Shell ID

mm

330

390

390

Shell Thickness

mm

8

8

8

No. of Tubes

Nos

127

140

168


Inch

3/4" OD x 0.028 Thk

3/4" OD x 0.028 Thk

3/4" OD x 0.028 Thk

Tube Length

Ft.

7

8

8

Surface Area (Inside)

Sq. Ft.

129.05

162.58

195.10

Surface Area (Outside)

Sq. Ft.

560.07

705.60

846.72

No. of Pass (Refrigerant side)

Nos

1

1

1

No. of Pass (Water side)

Nos

3

2

2

Water connection size

Inch

4"

4"

4"

No. of Refrigerant circuit

NOS

1

1

1

USGPM

312

375

435

USGPM

416

500

580

Tube type and Material

Water flow Rate

External Finned Copper Tubes

Min. Max

.

15


Technical Specification for Water Cooled Screw Chiller (Single Compressor) Description

Units

LCWX1-115 D i B

LCWX1-135 D i B

LCWX1-160 D i B

DX-COOLER Model

YCH-103A

YCH-122A

YCH-152A

Shell ID

mm

371

371

416

Shell Thickness

mm

8

8

8


Inner Groove Copper Tubes

No. of Tubes

Nos

252

252

310


Inch

5/8" OD * 0.031

5/8" OD * 0.031

5/8" OD * 0.031

Tube Length

Ft.

7

8

8

Surface area (Inside)

Sq. Ft.

446.64

510.45

627.93


Sq. Ft.

290.09

323.17

407.75


Nos

1

1

1


Nos

4

4

4

Water Connection Size

Inch

6" NB

6" NB

6" NB

No. of Refrogerant Circuits

Nos

1

1

1

Min.

USGPM

208

250

290

Max.

USGPM

312

375

435

Water Flow Rate

EXPANSION VALVE

Thermostatic

Make

Sporlan

Model

VVE-100

VVE-100

OVE-70-2#

OVERALL DIMENSIONS : Length

mm

2700

2953

2979

Width

mm

800

900

900

Height

mm

2000

2102

2102

Net Weight Approx

Kg.

2500

2700

3365

Operating Weight

Kg.

2725

3025

3750

Rating Conditions 1. Entering Cooler Water temp 54oF, Leaving Cooler Water temp. 44oF 2. Cooler Fouling Factor 0.0001 Hr.Ft2.F/Btu 3. Entering Condenser Water temperature 85oF, Leaving Coondenser Water temperature 95oF 4. Condenser Fouling Factor 0.00025 Hr.Ft2.F/Btu

16

USER'S MANUAL

Technical Specification for Water Cooled Screw Chiller (Single Compressor) Description Nominal Cooling capacity

Units

LCWX1-175 D i B

KW(TR)

615.5 (175)

LCWX1-225 D i B 791.3 (225)

COMPRESSOR :

Semi Hermetic Screw

Model Quantity

No.

Motor Type

BSC-160A

BSC-210A

1

1

Refrigerant Cooled Semi- hermetic, 3 Ph., 2 Pole, Squirrel Cage Induction Motor

Operating Speed

RPM

Power Supply

2950

2950

400 V(+/- 10%), 3PH., 50HZ

400 V(+/- 10%), 3PH., 50HZ

200.7

258.6


Amp.


Amp.

240

310


Amp.

1480

1760


Amp.

495

590


Amp.

489

580

F

F

KW

120.7

156.1

Ltrs.

23

28

Kg

150

195

YCD-176A

YCD-221A 457


Blue Star ACS



mm

390

Shell Thickness

mm

8


8 External Finned Copper Tubes

No. of Tubes

Nos

199

248


Inch

3/4" OD x 0.028 Thk

3/4" OD x 0.028 Thk

Tube Length

Ft.

8

8


Sq. Ft.

231.10

288.00


Sq. Ft.

1002.96

1249.92

Nos

1

1

No. of Pass (Refrigerant side) No. of Pass (Water side)

Nos

2

2


Inch

5"

6"

No. of Refrigerant circuit Water flow Rate

NOS

1

1

Min.

USGPM

480

630

Max.

USGPM

640

840

17


Technical Specification for Water Cooled Screw Chiller (Single Compressor) Description

Units

LCWX1-175 D i B

LCWX1-225 D i B

YCH-177 A

YCH-222 A

DX-COOLER Model Shell ID

mm

416

416

Shell Thickness

mm

8

8

No. of Tubes

Nos

378

508


Inch

5/8" OD * 0.031

5/8" OD * 0.031

Ft.

8

8


Sq. Ft.

765.67

1029


Sq. Ft.

497.19

668.00

Nos

1

1



Tube Length

No. of Pass (Water side) No. of Pass (Refrigerant side)

Nos

4

4


Inch

8" NB

8" NB

No. of Refrogerant Circuits Water Flow Rate

Nos

1

1

Min.

USGPM

320

420

Max.

USGPM

480

630

EXPANSION VALVE

Thermostatic

Make

Sporlan

Model

OVE-70-2#

VVE-100-2#

2987

3087


mm

Width

mm

900

900

Height

mm

2102

2269

Net Weight Approx

Kg.

3650

4600

Operating Weight

Kg.

4000

5040

Rating Conditions 1. Entering Cooler Water temp 54oF, Leaving Cooler Water temp. 44oF 2. Cooler Fouling Factor 0.0001 Hr.Ft2.F/Btu 3. Entering Condenser Water temperature 85oF, Leaving Coondenser Water temperature 95oF 4. Condenser Fouling Factor 0.00025 Hr.Ft2.F/Btu

18

USER'S MANUAL

Technical Specification for Water Cooled Screw Chiller (Twin Compressors) Description Nominal Cooling capacity

Units

LCWX2-225 D i B

LCWX2-270 D i B

LCWX2-315 D i B

KW(TR)

791.3 ( 225)

949.6 (270)

1107.9 (315)

BSC-150A

BSC-110A + BSC-145A

BSC-145A

2

2

2

COMPRESSOR :

Semi Hermetic Screw

Model Quantity

No.

Motor Type

Refrigerant Cooled Semi- hermetic, 3 Ph., 2 Pole, Squirrel Cage Induction Motor

Operating Speed

RPM

Power Supply

2950 400 V(+/- 10%), 3PH., 50HZ

2950

2950

400 V(+/- 10%), 3PH., 50HZ

400 V(+/- 10%), 3PH., 50HZ


Amp.

264.8

315.9

367


Amp.

320 (160 x 2)

380 (160+220)

440


Amp.

735, 735

735, 1100

1100, 1100


Amp.

245, 245

245, 370

370, 370


Amp.

385

481.5

550

F

F

F

KW

164.9

192.5

220

Ltrs.

16 + 16

16 + 23

23 + 23

Kg

180

231

275

YCD-222 A

YCD101A+YCD151A

YCD-151A+YCD151A


Blue Star ACS



mm

457

330+390

390+390

Shell Thickness

mm

8

8

8

No. of Tubes

Nos

248

127+168

168+168


Inch

3/4" OD x 0.028 Thk

3/4" OD x 0.028 Thk

3/4" OD x 0.028 Thk

Ft.

8

8

8


Tube Length

External Finned Copper Tubes


Sq. Ft.

288.00

324.15

390.19


Sq. Ft.

1249.92

1406.79

1693.44

Nos

1

1

1

No. of Pass (Refrigerant side) No. of Pass (Water side)

Nos

2

2

2


Inch

6"

4"+4"

4"+4"

No. of Refrigerant circuit Water flow Rate

NOS

2

2

2

Min.

USGPM

624

750

870

Max.

USGPM

832

1000

1160

19


Technical Specification for Water Cooled Screw Chiller (Twin Compressors) Description

Units

LCWX2-225 D i B

LCWX2-270 D i B

LCWX2-315 D i B

DX-COOLER Model

YCH-222 A

YCH-103A+YCH152A

YCH-152A+YCH152A

Shell ID

mm

488

371+416

416+416

Shell Thickness

mm

8

8

8



No. of Tubes

Nos

508

252+310

310+310


Inch

5/8" OD * 0.031

5/8" OD * 0.031

5/8" OD * 0.031

Ft.

8

8+8

8+8

Tube Length Surface area (Inside)

Sq. Ft.

1029

1074.57

627+627


Sq. Ft.

651.46

697.84

407+407


Nos

1

1

1


Nos

4

4

4


Inch

8" NB

6"NB+6"NB

6'’NB+6'’NB


Nos

2

2

2

Min.

USGPM

416

500

580

Max..

USGPM

624

750

870

Water Flow Rate

EXPANSION VALVE

Thermostatic

Make

Sporlon

Model

VVE-100-2#

V V E-100-1# + OVE-70-2#

OVE-70-2# + OVE-70-2#


mm

3100

3400

3400

Width

mm

1220

1800

1800

Height

mm

2300

2300

2300

Net Weight approx

Kg.

5000

5400

6526

Operating Weight

Kg.

5450

6050

7280

Rating Conditions 1. Entering Cooler Water temp 54oF, Leaving Cooler Water temp. 44oF 2. Cooler Fouling Factor 0.0001 Hr.Ft2.F/Btu 3. Entering Condenser Water temperature 85 oF, Leaving Coondenser Water temperature 95oF 4. Condenser Fouling Factor 0.00025 Hr.Ft2.F/Btu

20

USER'S MANUAL

Technical Specification for Water Cooled Screw Chiller (Twin Compressors) Description Nominal Cooling capacity

Units

LCWX2-345 D i B

KW(TR)

1213.4 (345)

LCWX2-400 D i B 1406.8 (400)

COMPRESSOR :

Semi Hermetic Screw

Model Quantity

No.

Motor Type

BSC-160A

BSC-160A+BSC-210A

2

2

Refrigerant Cooled Semi-hermetic, 3 Ph., 2 Pole, Squirrel Cage Induction Motor

Operating Speed

RPM

Power Supply

2950

2950

400 V(+/- 10%), 3PH., 50HZ

400 V(+/- 10%), 3PH., 50HZ


Amp.

401.4

459.3


Amp.

480 (240 x 2)

550 (240 + 310)


Amp.

1480, 1480

1480, 1760


Amp.

495, 495

495, 590


Amp.

692

769

F

F

Class of Motor Insulation Power Consumption

KW

241.4

Type of Oil

276.7 Blue Star ACS


Ltrs.

23 + 23

23 + 28

Kg

304

351

CONDENSER : Model

YCD-176A+YCD176 A

YCD176A+YCD222A

Shell ID

mm

390+390

390+457

Shell Thickness

mm

8


8 External Finned Copper Tubes

No. of Tubes

Nos

199+199

199+248


Inch

3/4" OD x 0.028 Thk

3/4" OD x 0.028 Thk

Ft.

8

8

Tube Length Surface Area (Inside)

Sq. Ft.

462.19

519.10


Sq. Ft.

2005.92

2252.88


Nos

1

1


Nos

2

2


Inch

5"+5"

5"+6"

No. of Refrigerant circuit

NOS

2

2

Water flow Rate

Min.

USGPM

960

1110

Max.

USGPM

1280

1480

21


Technical Specification for Water Cooled Screw Chiller (Twin Compressors) Description

Units

LCWX2-345 D i B

LCWX2-400 D i B

DX-COOLER Model

YCH-177A+YCH177A

YCH-177A+YCH222A

Shell ID

mm

416+416

416+488

Shell Thickness

mm

8


8 Inner Groove Copper Tubes

No. of Tubes

Nos

378 +378

378+508


Inch

5/8" OD * 0.031

5/8" OD * 0.031

Ft.

8+8

8 + 8


Sq. Ft.

765.67+765.67

765.67 + 1029


Sq. Ft.

497.19+497.19

497.2 + 668

Tube Length


Nos

1

1


Nos

4

4


Inch

8" NB+8'’NB

8" NB + 8'’NB


Nos

2

2

Min.

USGPM

640

740

Max..

USGPM

960

1110

Water Flow Rate

EXPANSION VALVE

Thermostatic

Make

Sporlon

Model

OVE-70-2# + OVE-70-2#

OVE-70-2# + VVE-100-2#


mm

3400

3400

Width

mm

1800

1800

Height

mm

2450

3000

Net Weight approx

Kg.

6862

7541

Operating Weight

Kg.

7500

8300

Rating Conditions 1. Entering Cooler Water temp 54oF, Leaving Cooler Water temp. 44oF 2. Cooler Fouling Factor 0.0001 Hr.Ft2.F/Btu 3. Entering Condenser Water temperature 85 oF, Leaving Coondenser Water temperature 95 oF 4. Condenser Fouling Factor 0.00025 Hr.Ft2.F/Btu

22

USER'S MANUAL

Pressure Drop YCH-52A

YCH-62A

YCH-77A

YCH-92A

20

1.5

40

2.5

1.4

60

3.5

2.5

1.75

80

5

4

3

100

7

6

4.5

120

10

8.3

6.5

140

13

11

9

5.5

160

16.5

14

11.5

6.5

180

21

17.5

14.5

8

200

26

21

18

10

220

25

21

12

240

29

24.5

14

260

28.3

16

280

32.5

18.5

300

21

320

24

340

26

360

28

380 400

YCH-103A YCH-122A

YCH-132A YCH-177A YCH-202A YCH-222A YCH-152A

100 150

6

200

10

7.5

5.5

4.5

2.8

0.5

250

15

10.3

8.3

6.5

4.6

2.5

300

21

14

11

8.5

6.5

4

350

27

19

14

12

9.2

5.8

400

25

18

15

12

7.5

450

36

22

19

15

9.3

500

26

23

19

11.5

550

32

28

24

14

600

40

33

28

17

32

20

650 700

3.5

2

24

23


24

USER'S MANUAL

YCD-51A

YCD-61A

2

YCD-77A

YCD-91A

YCD-101 A

0.5

60

3.5

2.5

1.5

80

5.5

3.6

2.5

100

8

5.5

4

3

2

120

10.5

7.5

5.5

4

3

140

14

10.5

7.5

5

4

160

17.5

13

9.5

6.5

5.5

180

21.5

16

11.5

8

7

200

26.5

19

14

10

8.5

220

22.5

16.5

12

10

240

26

19

14

12

260

21.5

16

13.5

280

24.5

18.5

15.5

300

21

17

320

23.5

19

340

21

360

23

YCD-122

YCD-132

YCD-152 A

YCD-177 A YCD-202 A

YCD-222 A

100 150

2

200

4.6

3.6

2

250

7

5.5

3.5

2.8

300

10

7.5

6

4.7

350

13

9.2

8

6.5

5

3

400

16

12

10.2

8.2

6.1

4.5

450

20

15

12.5

10

8

6

500

24

18

15

12

10

8

550

30

23

19

15

12

10

600

35

27.5

22

18

14

12

35

25

21

16

13.5

25

18

15

650 700

3.5

2

25


26

USER'S MANUAL

Rigging and Installation Rigging When the chiller arrives at Warehouse/Site, proper rigging and handling is mandatory during unloading and leading the unit into position. Care must be taken to keep the unit upright during rigging. Avoid unnecessary jerking or rough handling. Proper hoisting straps should be used when rigging (nylon flat rope). It is also mandatory that an experienced and reliable rigger be selected to handling unloading and final placement of the equipment. The rigger must be advised that the unit contains internal components that require to be kept in an upright position. Care must be exercised to avoid twisting of the equipment.

Storage Check for transportation damages if any and take up with factory for any damages. In case the site is not ready to install the chiller, proper care should be taken to store the chiller in a covered space. Check up the pressure of the unit when received. If the pressure is not retained in the system, the system should be pressure tested immediately, repair the leakages if any and charge the system with Nitrogen. Never keep the system without pressure.

Installation (Aircooled) Proper care should be taken to make the foundation for the Chiller. Study the GA drawings of respective models and arrange for wider foundation as rquired to accommodate all the springs within the width of foundation since the springs centres ar enot in one straight line. In case the Chiller is located on the roof top, ensure that the same is located in such a way that the load of the same is transferred to the columns and not to the slab directly. The foundation should be properly levelled.

27


Install the Chiller on the springs specifically designed and supplied along with the unit. The unit should not be located nearer to any heat source or any high tension line running above. (Especially near the Control Panel end) Adequate space around the Chiller as recommended in the GA Drawing should be made available for maintenance purpose. The chilled water and condenser water piping connections to the cooler and condenser should be terminated preferably with flexible connections to avoid transmission of vibration if any. The piping shall be supported external to the unit as per the recommended practice. Alternately 2 nos. of National Couplings in series can be provided for the cooler connection. Use recommended size of power cable to be terminated to the Control Panel of the unit. Use 3½ core Aluminium cable along with double earthing and terminate through proper lugs. Avoid any sharp bend for the cable at the termination point. The cable shall be adequately supported. Two separate incomer cables are required for the chillers with twin compressors.

28

USER'S MANUAL

Installation (Watercooled) Proper care should be taken to make the foundation for the Chiller. In case the Chiller is located on the roof top, ensure that the same is located in such a way that the load of the same is transferred to the columns and not to the slab directly. The foundation should be properly levelled. Install the Chiller on the Foundation/Pedestal and grout by using foundation bolts. The Chiller should be levelled on the foundation. The unit should not be located nearer to any heat source or any high tension line running above. Adequate space around the Chiller as recommended in the GA Drawing should be made available for maintenance purpose. The chilled water and condenser water piping connections to the cooler and condenser should be terminated preferably with flexible connections to avoid transmission of vibration if any. The piping shall be supported external to the unit as per the recommended practice. Alternately use 2nos. of national couplings in series. Use recommended size of power cable to be terminated to the Switch Fuse unit of the Panel of the unit. Use 3½ core Aluminium cable along with double earthing and terminate through proper lugs. Avoid any sharp bend for the cable at the termination point. The cable shall be adequately supported. Two separate incomer cables are required for the chillers with twin compressors.

29


Carel Controller For Screw Chiller with Step Capacity Control

1.General Characteristics pCO1 Medium (18 Din modules)

•

12 optically-isolated digital inputs, 24Vac 50/60 Hz or 24Vdc;

•

Optically-isolated digital inputs, 24Vac/Vdc or 230Vac (50/60Hz);

•

Digital relay outputs (3 of which with changeover contact and 4 optional SSR);

•

4 analog inputs, configurable as NTC, 0/1V, 0/5V, 0/20mA, 4/20mA.

•

2 analog inputs, configurable as NTC and ON-OFF

•

2 NTC analogue inputs

•

2 x 0/10Vdc analogue outputs.

•

2 PWM outputs for phase-cutting speed controllers.

30

USER'S MANUAL

2. Hardware Structure The structure of the pCO1 features:

•

The pCO1 controller, fitted with a 16bit microprocessor for running the control program, and the set of terminals required for connection to the controlled devices (for example: valves, compressors, fans). The program and the parameters are saved permanently in the FLASH memory, preventing data loss in the event of power failure (without requiring a backup battery). The pCO1 also allows connection to a local pLAN network made up of a series of pCO1 boards and terminals. Each board can exchange information (any variable, digital or analogue, according to the application software) at high transmission speeds. Up to 32 units can be connected, sharing information in very short times. The connection to the supervisor/tele-maintenance serial line, based on the RS485 standard, is made using the optional serial cards (PCO1004850) and the Carel or Mod Bus communication protocol.

•

The terminal, also managed by microprocessor, fitted with display, keypad and LEDs to allow the programming of the control parameters (Set Point, differential band, alarm thresholds) and basic functions by the user (ON/OFF, display of the controlled values, optional printing).The terminal does not have to be connected to the pCO1 for normal operation, but can be used for the initial programming of the fundamental parameters.

•

The pCO1 has a variation of only on input and output configuration and available memory.

The following is a description of the pCO1 (Medium version) with reference to the basic layout:

Fig. 2.1.1

31


1. Power supply connector [G (+), G0 (-)] 2. 250Vac, 2A fuse, slow-blow (T2 A) 3. Universal analogue inputs, NTC, 0/1V, 0/5 V, 0/20mA, 4/20mA 4. Passive analogue inputs, NTC and ON/OFF 5. Passive analogue inputs, NTC 6. Yellow power LED and 3 signal LEDs 7. 0/10V analogue outputs and PWM phase-cutting outputs 8. Digital inputs, 24Vac/Vdc 9. Digital inputs, 230Vac or 24Vac/Vdc 10. Connector with Vref for power to 5V ratiometric probes, and Vterm for power to ARIA terminal 11. Connector for all the standard pCO* series terminals and for downloading the application software 12. PLAN local network connector 13. Connector for the programming key 14. Digital relay outputs 15. Door for selecting the type of analogue inputs 16. Door for inserting the serial card: - RS485 for supervisor - RS232 for modem interface - Gateway (protocol converter) 17. Door for inserting the clock card

32

USER'S MANUAL

Installation Power supply The pCO1 can be powered at: 22/38Vdc and 24Vac ±15%, 50 z, with a maximum power input Pmax= 13W. For alternating current power supplies, during installation use a Class II safety transformer, rated to at least 40VA and with a 24Vac output. To supply more than one pCO1 controller with the same transformer, its rated power must be n x 40VA, where n is the number of controllers supplied by the transformer, independently of the version of the controller. The power supply to the pCO1 controller/controllers and the terminal/terminals must be separated from the power supply to the other electrical devices (power contactors and other electromechanical components), inside the electrical panel. If the transformer secondary is earthed, make sure that the ground wire is connected to terminal G0.When powering a series of pCO1 boards connected in a pLAN network, make sure that the G and G0 connections are correct (G0 must be same for all the boards). The table below summaries the possible status of the power LED.

LED Status Yellow On Off

Description Power Supply Present Power Supply absent Table 4.2.1

Fig. 4.2.1

33


The following warnings must be respected for correct connection: •

Power supply different from that specified can seriously damage the system;

•

Use cable plugs suitable for the terminals being used. Loosen each screw and insert the cable plug, and then tighten the screws. At the end of the operation lightly tug the cables to check that they are tight;

•

Separate as much as possible the probe signal and digital input cables from the inductive load and power cables, to avoid possible electromagnetic disturbance. Never use the same channeling (including that used for the electrical cables) for the power cables and probe cables. Avoid the probe cables being installed in the immediate vicinity of power devices (contactors, circuit breakers or the like);

•

Reduce the length of the sensor cables where possible and avoid spiraling around power devices. The probe connection must be made using shielded cables (minimum cross section for each lead: 0.5 mm2);

•

Avoid touching or nearly-touching the electronic components on the boards, to avoid (extremely dangerous) electrostatic discharges from the user to the components;

•

If the power supply transformer secondary is earthed, check that the ground wire corresponds to the lead connected to terminal G0 in the controller;

•

Separate the power supply to the digital outputs from the power supply to the pCO1;

•

Do not fasten the cables to the terminals by pressing the screwdriver with excessive force, to avoid damaging the pCO1.

Connecting the analog inputs The analog inputs can be configured for the more common sensors on the market: NTC, 0/1V, 0/ 10V, 0/20mA, 4/20mA. The different types of sensors can be selected using the corresponding dipswitches, as in the following figure.

Fig. 4.4.1

34

USER'S MANUAL

Warning: for the power supply to the active probes, the 24Vdc available at the +VDC terminal can be used; the maximum current is 100mA, thermally protected against short-circuits.

Fig. 4.4.2

35


Connecting universal NTC temperature probes : All the analogue inputs, from B1 to B8, are compatible with NTC 2-wire sensors, after having configured the program and the corresponding dipswitches on the board. The connection diagram Fuse and the correct position of the dipswitches on the board are shown below:

Fig.4.4.2.1

pCO3 terminal GND

NTC probe wire 1

B1, B2, B3, B4, B5, B6, B7, B8

2

Table 4.4.2.1

36

USER'S MANUAL

Fig. 4.4.4.1

pCO1 terminal +5V ref GND B1, B2, B3, B4

Probe wire colour black green White

description Power supply Power supply ground Signal

Table 4.4.4.1

Warning: the two wires of the NTC probes are equivalent, as they have no polarity therefore it is not necessary to respect any specific order when connecting to the terminal block.

37


Connecting 0/5V ratio metric pressure probes : The pCO1 can be connected to all the Carel SPKT series active probes pressure or any other pressure sensor available on the market with a 0/5V ratio metric signal. The following inputs can accept these sensors: B1, B2, B3 and B4, after having configured the program and the corresponding dipswitches on the board. The connection diagram and the correct position of the dipswitches are shown below:

Fig. 4.4.5.1

Input type NTC 1 (Current) V (Voltage)

C.sect. (mm2) for lengths upto 50m 0.5 0.25 0.25 Table 4.4.6.2

38

C.sect. (mm2) for lengths until 100m 1.0 0.5 0.5

USER'S MANUAL

Connecting the digital inputs : The pCO1 features up to 14 digital inputs for connecting safety devices, alarms, device status, and remote switches. These inputs can work at 24Vac, 24Vdc and some at 230Vac.

WARNING: separate the probe signal and digital input cables as much as possible from the inductive load and power cables, to avoid possible electromagnetic disturbance 24Vac digital inputs : The following figure represents one of the more common connection diagrams for the 24Vac digital inputs.

Connecting the digital outputs : The pCO1 features up to 13 digital outputs with electromechanical relays. For ease of installation, the common terminals of some of the relays have been grouped together. If the diagram in Fig. 4.8.1.1 is used, the current at the common terminals must not exceed the rating (nominal current) of a single terminal. The relays are divided into groups, according to the degree of insulation. Inside each group, the relays have just single insulation and thus must have the same voltage (generally 24Vac or 110/230Vac). Between the groups there is double insulation and thus the groups can have different voltages.

Electromechanical relay outputs :

Fig. 4.8.1.1

Installing the user terminal : The connection between the user terminal and the pCO1 is made using a 6-way telephone cable supplied by Carel.To make the connection, simply insert the telephone connector in terminal J10 on the pCO1 and in terminal B on the user terminal. Insert the connector fully into in the terminal until it clicks into place. To remove the connector, simply press lightly on the plastic flap and remove the cable. The pCO1 can also work without the terminal; do not disconnect and then reconnect the terminal to the pCO1 without first having waited around 5 seconds (if the operation is performed with the unit on). For devices used in residential environments or similar, and thus subject to CEI EN 55014-1 -04/98, any standard terminals connected by J10 must use a shielded cable. The shield must be connected to the GND terminal of J11.

39


The electrical connections are the following. Connect the telephone cable (code S90CONN00* from the power board (code PCO1*) into the corresponding jack. For model PCOI00PGL0 only, connect the 24Vac (30VA) power supply to the screw terminal block. If the same transformer is used for the pCO1, G and G0 must be the same on the pCO1 and the terminal.

pAN network : As already mentioned, the pCO1 controllers can be connected to the pLAN local network, allowing the communication of data and information from one location (node) to another. Each pCO1 can be connected to a Carel supervisory network, using the optional PCO1004850 cards.

The pCO1 terminals can monitor the control variables (temperature, humidity, pressure, I/O, alarms) from one or more boards. If one or more terminals are disconnected or malfunctioning, the control program continues to function correctly on each pCO1 board. Generally, the application program can monitor the status of the network and intervene as a consequence to ensure the continuity of the control functions. Figure 5.1, shows the pLAN network connection diagram: a maximum of 32 units can be connected (including I/O interface cards and user interface cards).The 32nd unit can only be a terminal. All the versions of the pCO1 can be connected in a local pLAN network without requiring additional boards (Fig. 5.1). The programs for the different applications (e.g.: standard chiller, standard air-conditioner, compressor packs, ...) can not be automatically integrated into a local network: they must be modified to consider the network strategy and structure, and then be recompiled using the Easy Tools system. All the devices connected to the pLAN network are identified by their own individual address, from 1 to 32 for the terminals and from 1 to 31 for the I/O boards. As the terminals and the pCO1 I/O boards use the same type of address, terminals and pCO1 boards cannot have the same identifier. The addresses are set for the terminals using the dipswitches on the rear. The network can be made up of any type of terminal, LED, 4x20 LCD and graphic, as well as pCO and pCO1 controllers.

40

USER'S MANUAL

Setting the pCO1 address : The pCO1 controller does not have dipswitches for setting the pLAN network address.The pLAN address is set using a standard 4x20 LCD terminal. Proceed as follows: •

Disconnect the pCO1 from the power supply;

•

Organise a standard Carel 4x20 LCD terminal with the address set to 0;

•

Connect the terminal to the pCO1;

•

Disconnect the pCO1 from any plan connections to other controllers (terminal J11);

•

Power the pCO1, pressing the UP and ALARM buttons at the same time;

•

After a few seconds the following screen will be displayed:

•

To modify the address simply use the UP and DOWN buttons, and then press ENTER to confirm.

Setting the terminal address : The address can be set in the range from 1/32 using the dipswitches 1/6 on the rear. The graphic terminal does not require the setting of the address, as this is determined by the program EPROM. Fig. 5.2.1 shows the rear view of the terminal board.

Fig. 5.2.1

Important Warning: if the application software does not envisage a pLAN local network, the dipswitches must be positioned to 0.

41


5.4 pLAN Electrical Connections Connection between boards in a pLAN network is carried out using an AWG20/22 shielded cable, twisted pair plus shield. The boards are connected in parallel, with terminal J11 as the reference. Pay ATTENTION to the network polarity: RX/TX+ on one board must be connected to RX/TX+ on the other boards; the same is true for RX/TX-. Fig. 5.4.1 shows a diagram of a number of boards connected in a pLAN network and powered by the same transformer, typical for a number of boards connected inside the same electrical panel. Remote installation of the terminal in a pLAN network when pCO1 boards are connected in a pLAN network, the terminal can be remotely-installed at a distance of up to 50metres, if using a telephone-type cable, while it can be located at a distance of up to 200metres if using an AWG shielded cable. The following figures show the connection diagrams for the various configurations. Remote installation of the terminal in a pLAN network using a telephone cable. This type of remote installation requires the insertion of two ferrites, code 0907858AXX, at the markings with the letter F in Fig. 5.5.1.1. Figs. 5.5.1.2a and 5.5.1.2b show respectively the ferrites to be installed the open and closed position. The ferrites are mounted on the telephone connection cable, one on the pCO1 side (see Fig.5.5.1.3) and the other on the terminal side (see Fig. 5.5.1.4). Note: The graphic terminal, unlike the other LCD models, requires a 24Vac power supply from the Plug-In terminals (terminals G and G0).This may be the same line that powers the pCO1 (in this case, make sure G and G0 correspond), or alternatively may be supplied by another transformer; in this case, do not earthy the secondary.

Warning: the telephone cable must exit the pCO1 perpendicularly. Reading the 3 LEDs on the pCO1 board The pCO1 board features 3 signal LEDs (red, yellow and green) that provide information on the operation of thepCO1 board and the status of the connection to WinLoad32.

42

USER'S MANUAL

Key

LED off

LED on

LED flashing

43


*: Cases in which pCO1 reverts to Low Level status: - When starting the pCO1 detects that Win Load is connected. - When starting the pCO1 detects “Application corrupted…”. - During normal operation the pCO1 runs a JUMP atom without the correct reference or backwards. After 20 seconds of Low Level status without Win Load connected, the pCO1 is automatically reset. •

If the pCO1 is started with the key inserted and the key switch is set to Key (see Fig. 6.1.1), (SELECTION LED red ), without pressing the buttons on the local terminal, the program resident in the key is run, without modifying the program resident in the pCO1. In practice, the pCO1 controller can run an alterative program and/or setup to the resident version. This function is useful for testing upgrades to the BIOS and/or APPLICATION, without overwriting the software resident in the pCO1. It is also very useful for running special functions or parts of programs (e.g. final functional tests) using special parameter Configurations and/or programs (expressly developed for these functions), without modifying the program resident in the pCO1.Only the program and/or parameter configuration resident in the key are modified. Once this phase is complete, switch off the pCO1 controller, remove the key, and when starting the pCO1 the next time, the original program and setup are used.

•

If, on the other hand, the key switch is set to pCO1 (SELECTION LED green) and the buttons on the local terminal are not pressed, the key has no effect.

•

To display or modify the pLAN address, use the local terminal: switch off the pCO1, remove the terminal from the pLAN network, connect the user terminal with address set to 0, start the pCO1 and hold the ALARM and UP buttons until the screen is displayed showing the pLAN address, then follow the instructions on the screen.

•

The current version of program can be checked at any time (by CRC code expressed in hexadecimal), and whether the program on the key or the resident program is used. To check this, simply proceed as follows. Press the alarm and enter buttons together for 3 seconds, and the following screen will be displayed:

Confirming with enter displays a second table, as shown in the following example:

44

USER'S MANUAL

1st row BOOT: version and date. The pCO1 is working with BOOT 2.05, 24/01/02 2nd row BIOS: version and date. The pCO1 is working with BIOS 2.40, 20/02/02 3rd row Flash ON BOARD and KEY, if present. The characters (>_<) indicate the pCO flash: to the left if the pCO1 is booted From the flash ON BOARD (switch on

)and SELECTION LED red green

), or to the right if the

and SELECTION LED red

). In the example, the

pCO1 is booted from the key (key switch on Key

pCO1 is running the BOOT, BIOS and application present ON BOARD, and has a 2MB key inserted. 4th row APPLICATION: CRC and flash occupied. the application CRC Is FA90 and requires a memory of 1MB to be run. If this row shows the indication 2MB, a pCO1 with 2MB is required. Exit these two screens by pressing the menu button on the local terminal, or automatically by timeout after around 40 seconds.

General diagram of the electrical connections : Below are two examples (Figs.8.1 and 8.2) of the electrical connections of the pCO1 to the various devices.

Fig. 8.1

45


pCO1 pCO1 Medium (18 Din modules)

Fig. 12.12

I/O Expansion Board Led Indication

46

USER'S MANUAL

Screw Compressor Construction HANBELL semi-hermetic twin-screw compressors are constructed with the following three major components; the compressor compartment, the hermetic motor compartment and the oil separator compartment. The compressor compartment includes twin-screw helical rotors, bearings and components for capacity control system. The hermetic motor compartment includes the motor stator, motor rotor, six terminal plugs for electric power connections, an internal thermostat inserted into the stator coil to protect the motor from burning out, two terminal plugs for the thermostat, and a suction gas strainer. The oil separator compartment consists of demister and chambers to serve as an oil separator and an oil reservoir. The rotor of the hermetic motor is connected directly at the suction end of the male rotor shaft and drives the rotor shaft at rated speed of 2,950 rpm at 50 Hz and 3,550 rpm at 60 Hz respectively.

47


Fig. 1 Construction of Screw Compressor

1.

Compressor casing

19. Disc spring

2.

Motor casing

20. α Balance piston

3.

Oil separator

21. Bearing slot nut

4.

Motor rotor assembly

22. Male rotor

5.

Motor stator assembly

23. Suction bearings

6.

Motor rotor washer

7.

Motor rotor spacer ring

24. Suction bearings inner/outer spacer ring

8.

Oil Separator Baffle

9.

Oil separator cartridge

10. Piston 11. Piston spring 12. Piston rod 13. Bearing set’s cover plate 14. Modulation solenoid valve 15. Modulation slide valve 16. Slide valve key 17. Discharge bearings 18. Discharge fixed ring

25. Oil guiding ring 26. Oil level sight glass 27. Oil filler cartridge 28. Suction filter 29. Oil heater 30. Refrigeration Lubricant 31. Suction flange 32. Discharge flange 33. Cable box 34. Power bolt 35. Thermostat terminals 36. Motor cable cover plate

48

USER'S MANUAL

Capacity Control System The BSC (RC) series screw compressors are equipped with 4-step capacity control system. The capacity control systems consist of a slide valve, piston rod, cylinder, piston and its rings. The slide valve and the piston are connected by the piston rod. The principle of operation is using the oil pressure to drive the piston in the cylinder. See Fig 2.2 , The lubrication oil flows from the oil tank through the oil filter cartridge and capillary and then fills into the piston cylinder due to the positive oil pressure higher than the right side of spring force plus the high pressure gas. The positive pressure differential causes the piston to move towards the right side within the cylinder. When the slide valve moves towards the right side, the effective compression volume in the compression chamber increases. This means the displacement of refrigerant gas also increases as a result to achieve higher refrigeration capacity. However, when any of the step solenoid valves is energized, the high pressure oil from the piston cylinder bypasses to the suction port to cause the piston with piston rod link for the slide valve moving towards the left slide, then some of refrigerant gas by passes from the compression chamber back to the suction end. as a result, the refrigeration capacity decreases owing to the reduction in displacement of refrigerant gas flow in the system. The piston spring is used to force the piston back to its original position, i.e. 25% position in order to reduce the starting current while the next startup. If the compressor starts at full load, will result in larger starting current which could damage the compressor motor. The capillary is used to maintain and restrain a stable amount of oil flow to the cylinder. If there is any oil filter cartridge, capillary, or modulation solenoid valve malfunction in the capacity control system, will result in the abnormal operation of the capacity control system. 4-step capacity control system (See FIG 2.2) There are three solenoid valves equipped on compressor that control the compressor capacity from dead stop (25%) to full load (100%). They are 25% capacity, 50% capacity, 75% capacity and 100% capacity. There are three normally closed solenoid valves that are used to control the various required in the capacity. For the compressor if selected for 4-step capacity control system, it is usual to be used with the sequence of 25%-50%-75%-100% to load the capacity of compressor and to be used in sequence of 100%-75%-50% to unload the capacity. If 25% capacity is essential to be kept running for a long time, the problem of oil return and motor cooling and high discharge temperature etc should be considered by adding the accessories such as liquid injection devices. a. 25% capacity When solenoid valve of SV1 is activated, the high pressure oil in the cylinder bypasses directly to the suction port, so the piston be held at its initial position. Be sure to take 30 seconds at least after every starting the compressor at this low capacity stage. After that, the compressor could be loaded gradually. b. 50% capacity When solenoid valve of SV3 is energized by the temperature controller and also de-energized of 25% (SV1) solenoid value simultaneously, the high-pressure oil in the oil tank flows into cylinder due to the closure of 25% valve that pushes the piston towards the position where a hole is provided which also drains the oil back to the suction port at exactly 50% position in case the piston holding there..

49


c. 75% capacity When solenoid valve of SV2 is energized, the 75% capacity solenoid valve will perform the same way as the above b. 50% capacity illustrated. d. 100% full load When all the two/three modulation solenoid valves are de-energized, the high-pressure oil flows into the cylinder continuously to push the piston toward the right side gradually until the slide valve touches the end side in the compressing chamber and the piston also reaches its dead end entirely where no bypass of compression gas occurs. Hence full load is achieved.

Step Capacity Control System

50

No.

Component

No.

Component

1

Suction fiilter

10

Lubricant

2

Gas in low pressure

11

Oil separator cartridge

3

Motor

12

Gas out (high pressure without oil)

4

Oil filter cartridge

13

Capillry

5

Suction bearings

14

Solenoid valve (25% of full load),SV1

6

Male rotor

15


7

Discharge bearings

16


8

Discharge silencer

17

Slide valve

9

Gas out high pressure with oil

USER'S MANUAL

Lubricant The main functions of the lubrication oil in screw compressor are lubrication, internal sealing, cooling and capacity control. The positive oil pressure in the cylinder pushes the piston and the slide valve, which is connected by a piston rod to move forward and backwardin the compression chamber. The design with positive pressure differential lubrication system in the BSC series is available to eleminate an extra oil pump in the compressor. The bearings used in BSC compressor require a small but steady quantity of oil for lubrication; the oil injection into the compression chamber creates an oil sealing film in the compression housing for increasing the efficiency and absorbing a portion of heat of compression. In order to separate the oil from the mixed refrigerant gas, an oil separator is required to ensure the least amount of oil carried into the system. Pay more attention to the oil temperature, which is a very significant factor for the compressor bearings’ life. High oil temperature will reduce the oil viscosity and cause poor lubrication and heat absorption in the compressor as well. It is recommended to keep the oil viscosity above 15mm2/s at any temperature. If the compressor is operated under the critical conditions, (high discharge pressure) then extra oil cooler is required. Some high viscosity oil is recommended for applications with high working condition. It happens often that the return oil from the evaporator is insufficient due to the high viscosity of oil, which is difficult to be carried back, that causes the loss of oil in compressor. If the system encounters the oil return problem then it is recommended to install extra 2nd oil separator between the compressor discharge connection and condenser. Each of BSC series of compressors are equipped with two oil sight glasses as a standard; one is the oil high level sight glass and the other is the oil low level sight glass. The normal oil level in the compressor oil tank should be maintained above the top of the low oil sight glass and in the middle level of high oil sight glass when compressor is running. It is recommended strongly to install the optional accessory of oil level switch to prevent from low oil level in compressor.

Warnings: a. Use specified oil and do not mix with different brands of oil. Different kinds of refrigerant should match with different kinds of oil. Note that some synthetic oils are incompatible with mineral oil. Prior to fillery oil in the compressor, the system should be totally cleaned up during the initial startup and ensure that it is clean completely. b. For the chiller system using synthetic oil, avoid the exposure of oil to the atmosphere too long, it is also necessary to vacuum the system completely when installing the compressor. c. The table below shows the oil replacement standard. Each compressor at HANBELL charges standard quantity of oil. d. In order to take out the moisture from the system, it is suggested to clean the system by hot air or Nitrogen, thereafter vacuum the system as long as possible. It is essential to change new oil into the system especially after the motor burn out, the acidic debris will still remain inside the system, hence follow the above mentioned procedures to overhaul the system. Check the oil acidity after 72 hours operating and then change it again and again if the limit is still over the oil acidity standard until been qualified.

51


Oil Replacement Standards Item

Value

Item

Value

Color, ASTM

Above 6.0

Total acid number mg KOH/g

Above 0.5

Particle Matters mg/100ml

Above 5.0

Copper Strip 100oC/3hrs

Above 2.0

Variation ±10% of

Moisture ppm

Above 100

Viscosity 40oC

2

15mm / Sec or more

Changing oil Lubrication oil is the most important factor to maintain the operating, lubricating, cooling, sealing and driving the capacity piston of the compressor. Following are the probable problems existing in the system that should be faced: 1. Contamination of oil by debris causes clogging in the oil filter. 2. Acidified system due to the moisture causes corrosion in the motor. 3. Spoiled oil due to the compressor running at long duration of high discharge temperature reduces life of bearing.

Refer to the following oil change intervals to ensure normal running of the compressor. 1. Change the oil periodically: Check the oil for after every 10,000 hours of running periodically for the first operation cleaning of filter and oil change is recommends after 20,000 hours of operation hours is recommended. Due to the piping debris could be accumulated inside the system after operation, check the oil after 2,500 hours or after one year of running. Check the system whether clean or not and then change the oil after every 20,000 hours or after 4 years running while the system is operated under good condition. 2. Prevent debrics from getting clogged in the oil filter. Clogging can cause fearing failure. Installing an optional oil pressure differential switch is recommended an optional oil pressure differential switch is recommended to be installed. The switch will trip when the oil pressure differential reaches the set point between the primary and secondary sides and the compressor, will shut down to prevent the bearings damage to bearingsdue to lack oil. 3. If the compressor discharge temperature often keeps high approaching to the set point, then the oil will be spoiled gradually in short time, hence check the oil characterestic every 2 months if possible. It is necessary to change the oil if the character of the oil is out of the standard. In case oil characterestic could not be checked periodically, then change the oil after 4 years’ of installation or after 20,000 hours’ of running which reaches first. 4. Acidity in lubrication oil shortens life of bearing and motor. Check the oil acidity periodically and change the oil if the oil acidity value measured is lower than PH 6. Change the deteriorated drier periodically if possible to keep the system dry. Check the acidity of oil after 72 hours of initial of operation.

52

USER'S MANUAL

5. Refer to the oil changing procedures especially after the system overhaul owing to the motor burn out. Check the oil monthly or periodically and change the oil if it is if bad quality, it is necessary to take care of the oil quality and system cleanness and dryness in the system periodically. The Compressors are charged with Blue Star ACS oil for the Air Cooled and Water Cooled Application and for R22

Liquid injection The liquid injection to the suction side of the compressor, is carried out by providing a separate thermostatic expansion valve in the system. (Low-temp type expansion valve) The flow of liquid refrigerant is controlled through the expansion valve by the suction superheat directly.

Application of liquid injection : The compressor motor temperature and its compression chamber temperature will be very high almost approaching the setting of motor thermister and discharge temperature thermister, which often result in the trip of the sensors under the above working conditions causing the chillers to shut down. The purpose of installing a liquid injection system is to prevent the compressor motor from overheating, an expansion valve is installed in the system with tube piped between the liquid line and compressor for cooling down the compression chamber and motor to ensure that the compressor can be run continuously and safely. The suction superheat should be controlled between 5 to 10 deg.C for the application of water cooled screw chillers by means of the expansion valve devices. During the initial start up, the loading of the chillers will be heavy due to the higher temperature of return chilled water, hence the liquid injection devices of adequate capacity should be selected to reduce the overheat of the compressor. When the compressor is operated for low temperature system (E.T=< -10 deg. C), the compression ratio will be high at this condition and also the discharge temperature. Hence the use of liquid injection system is essential.

53


Pre-Startup, Testing, Commissioning & Operation Prior to starting of the unit, check up the procedure detailed herein S.No. Items 1.

Accessories

Things to be checked

Standard Values

1. Oil level

1. Higher than the middle line of oil level sight glass. 2. Turn on the oil heater at least 8 hrs. before starting.

2. Time for heating the oil

2.

Electrical System

3. System valve status. 4. Capillary

3. Opened 4. No distortion or damage

1. Voltage of the main power.

1. Electricity voltage should be kept within +_15% to the rated voltage. Instant maximum voltage drop while starting should be less than 10% to the rated voltage.

2. Voltage of the control circuit.

2. Standard voltage is 220 V. Maximum voltage is 230 V.

3. Insulation Resistance value of the motor between phase to phase and phase to ground. 4. Power terminals and wire cables terminal connections.

3. Insulation resistance value should be above 5 M ohms

5. Earthling 6. Settings of switches, sensors and controllers.

54

4. Power terminals are firmly fixed on terminal block and well insulated. Keep wire cables away from heat source and sharpened metal. Terminal screw and block, both are required. 5. As per local Electricity regulations. 6. Properly set.

3.

Piping system

1. External piping 2. Leakage test 3. Compressor fixed tightly Leakage test

1. Fixed properly 2. No leakage 3. Check up the tightness

4.

Safety devices

1. Motor winding sensor Discharge temp. sensor

1. Connected properly 2. Connected properly

USER'S MANUAL

Pre-Start Up 1. In addition to above pre start-up check up, it is also necessary to pay attention to the auxiliary facilities while the chiller is commissioned at the job site and the periodic maintenance after the initial start up. 2. In order to keep the capacity control smoothly under the low ambient temperature with the normal viscosity of oil, it is required to heat the oil by heater at least 8 hours before next starting. The lower the ambient temperature is, the longer the time of heating of oil should be. The oil temperature should be over 50 Deg.C before starting the compressor. Keep the oil heater energised after the compressor is shutdown for preparation of next start-up, to keep the oil temperature over the minimum required value, which is essential especially under low ambient condition. 3. Recheck the settings on each controls 4. Establish the chilled water flow through the cooler. Adjust the water flow rate to the designed rated flow. Connect the Chilled water flow switch with Micro Control Panel. 5. Establish flow through the water cooled condenser (for water cooled chillers). Adjust the flow rate to the designed rated flow. Connect the condenser water flow switch with the control panel. 5. Check if all the stop valves in the system are already opened 6. Check if the setting on each timer relay is correct. 7. Check up the idle pressure of the system 8. Recheck the wiring to the compressor motor is as per the wiring diagram with Star – Delta connection given below.

MCS

MCD

Following are the start up limitations 1) Lowest Starting Voltage: The power voltage cannot be lower than 10% of rated voltage during start-up period of compressor.

55


2) Maximum Discharge Pressure: 18 kg/cm2 g 3) Minimum Suction Pressure: 6~8 kg/cm2 g 4) Maximum designed discharge pressure: 28 kg/cm2 g 5) Maximum designed discharge temperature: 110 Deg. C

Starting Current of the compressor The starting current of different model compressor is as given below (LRA). This will be approximately 3.0 to 3.5 times the rated current. Compressor Model

Locked Rotor Current (LRA), A

Starting Current A

BSC-075A

685

230

BSC-105A/ BSC-110W

735

245

BSC-130W

965

325

BSC-145A/ BSC-155W

1100

370

BSC-160A/ BSC-170W

1480

495

BSC-210A/ BSC-220W

1760

590

A. The starting for the Y start is usually set at 4 ± 1 second, and the maximum allowable shift time from Y to ∆ is 40 milliseconds. It is advisable to change the Y starting time prior to different working condition in the job site in accordance with the current variation of Y starting. It is recommended that the duration of Y starting is not over 15 seconds at the step of 25% capacity.

56

USER'S MANUAL

The running restraint of compressor 1.

Compressor restart frequency The restart counts for the models BSC - 077W, BSC - 105W, BSC - 145W, BSC - 160W and BSC - 210W are recommended below 6 times in one hour

2.

The starting for the Y start is usually set at 4 + seconds and the maximum allowable shift time from Star to Delta is 40 Sec. However it is recommended that the duration of the Y starting is not over 15 seconds at the step of 25% capacity.

3.

Supply power Long term running => +15% Instant Running => +10% Frequency : +2 % Phase current unbalance: The difference in phase current between the biggest phase current differential and smallest phase current differential is required to be less than 3 %

4.

Phase voltage unbalance: +2.25 %

5.

Range of ambient temperature: -10 Deg. C to 55 Deg. C

6.

The control voltage is normally 220 V

7.

Protection switch

The table below shows the list of protection switches, which are essential to protect the compressor and operate safely Protection Switch

Set Point

Motor winding

Cut out 120 Deg. C

temperature protector

Cut in 75 Deg.

High discharge

Cut out 110 Deg. C

temperature protector

Cut in 60 Deg. C

Phase reversal protector

Phase reversal when power on

Hi – Low pressure protector

Highest pressure 25 Kg/Sq.cm g

Phase failure protector

Phase failure when compressor starting or running

Motor overload relay

Set by a related application value, any setting should be tripped in 15 sec.

Hi-Low Voltage protector

Rated Voltage + 15 %

Oil level switch

Oil level lower than the floating ball

57


Operation of Micro Controller The control circuit for the Chiller comprises of analog sensor inputs such as suction pressure(s), discharge pressure(s), entering and leaving water temperatures etc. and digital sensor inputs such as flow switch, oil level switch, SP/PR faults; etc. It consists of relay outputs that drive the compressor(s), condenser fans, economizer(s) etc. Before switching ON the Screw chillier, ensure that the flow switch is connected between points 7 & 8 (and 7A & 8A for twin cooler models) in the wiring diagram and there is sufficient water flow. The crankcase heater should be ON for a period of min. 8 hours. In the OFF state, the condition of the outputs is as follows (provided incoming power supply is ON): Relay output

Condition

Main 1, 2

OFF

Load/ Unload sol (SV1)1/2

OFF


OFF


OFF

Pilot Solenoid valve 1, 2

OFF

Liquid Injection 1, 2

OFF

Economiser *

OFF

Oil Cooler Fan *

OFF

Condenser Fan A,B,C etc. *

OFF

*Applicable only for Air Cooled Screw chillers (1) Switch on power supply through Rotary Switch (mounted in control section). The unit goes in power up mode. In this state, all relay outputs are turned OFF. Controller will initialise & monitor Power Supply stability for 90 seconds. Switch ON individual system toggle switches (mounted in control section) to enable demand for respective compressors. (2) After the power up delay, the system goes in ON state. Controller checks for any anti-cycle (fault) timers leftovers and then generates demand for the first compressor based on set point and actual chilled water temperature. (3) All three Solenoid Valve (SV1, SV2, and SV3) are kept de-energised after initial power up delay to ensure unloaded start of compressor.

58

USER'S MANUAL

(4) Compressor starts with ‘Fast Unload’ logic. Condition of the relay outputs is as follows: Relay output

Condition

Main 1, 2

ON


OFF


OFF


OFF

Pilot Solenoid valve 1, 2

ON

Liquid Injection 1, 2

OFF

Economiser *

OFF

Oil Cooler Fan *

OFF

Condenser Fan A,B,C etc. *

OFF

*Applicable only for Air Cooled Screw chillers (5) One bank of condenser fans goes ON with corresponding compressor. (Applicable in case of Air Cooled Chillers) (6) Depending on difference between the leaving water temperature and set point, the system shall load or unload. The operation of the load or unload solenoid valves is as under for individual compressor

Sl. No.

Capacity Control System

SV1

SV2

SV3

1

100 % Of Full Load

On

On

On

2

75 % Of Full Load

On

Off

On

3

50 % Of Full Load

On

On

Off

4

25 % Of Full Load

Off

On

On

5

Shut Down and Initial Fast Unloading

Off

Off

Off

(7) When compressor-1 is at 100% load (or unable to load further due to safety hold), demand for the second system is generated to meet further load. (8) The 1st Compressor unloaded to minimum 50% slide position and 2nd compressor is started as per the sequence given in steps 4 to 6 (9) Thereafter both compressors are loaded / unloaded simultaneously .If load goes below 50 %, one compressor will switched off and other will utilizes the available full capacity. (Unless any of the compressors goes in safety hold).

59


Shut down sequence

•

To shut down complete chiller switch off rotary switch provided in panel. To switch OFF a particular compressor, respective toggle switch should be switched off.

•

During normal shut-down through controller, Compressor runs for preset time to enable unloading of slide to minimum position before switching OFF

•

Run Time Equalization

Controller has ‘minimum run time equalization’ logic option (set point 103 should be 0 and set point 104 should be 1). Compressor which runs for minimum time shall start first during next operation cycle.

Safety Parameters During normal running of compressor (s) following safety Parameters are monitored : Sr. No.

Set Point Description

Trip Delay (Seconds)

Default Setting

1

Hi amps

2

105 %

2

Low amps

5

15 %

3

Low suction

120

20 psig

4

Low gas / LSV FLT

10

15 psig

5

High discharge

2

250/375 psig

6

Low discharge

90

80 psig

7

Low oil differential

180

50 psig

8

Unsafe Oil

4

20 psig

9

Anti freeze *

5

39oF

* In case of Anti Freeze, all the Circuits of the entire Chiller are locked out.

60

USER'S MANUAL

To avoid nuisance tripping during compressor start up, following initial by pass / time delay adjustment procedure is observed.

Set Point Description

Bypass

Time Delay Adjustment*

Hi amps

For first 3 seconds

—

Low amps

For first 3 seconds

—

Low suction

During pump down

Low gas / LSV FLT Low oil differential Oil Level Switch

—

2 Min for 30 PSI

First 5 seconds

25 psig for next 30 seconds.

First 1 Minute

—

Operating Specifications The following are the Operating Specifications and default set points: 1.

Leaving water temperature is set at 45ºF with a control of ±0.5ºF.

2.

Liquid injection system switches ON at Discharge Temperature of 165ºF and switches OFF at Discharge Temperature of 155ºF.

3.

The Economizer Solenoid Valve activates at 75% of Slide positions and turns off at 65% of slide position. (Applicable for air cooled chillers only)

4.

One bank (50% of the total No. of fans) of condenser fans switches ON at discharge pressure 200 psig and turns OFF at 140 psig. (Applicable for air cooled chillers only)

5.

The delay between the Star and Delta connection is preset at 3 seconds.

6.

Low-pressure setting is at 15 psig and High-pressure setting is at 250 /375 psig.

7.

Anti Freeze Thermostat setting is at 39ºF

61


1. Capacity Control Method The capacity control method is based upon to develop the control zone on both side of Water leaving temperature set point, and accordingly add or subtract the capacity control stages of chiller. To accomplish this system will constantly monitor the set point, trend of load and slide position in relationship to the control zone.

1.1 Common Definitions 1.1.1 Target The control target is “Water Leaving Set point”. This will be the base of developing the control zone.

1.1.2. Control Zone The control zone is developed by adding the set points for the control target and the dead band + to obtain the upper limit. The lower limit is obtained by subtracting the dead band - set point from the control target Once the control zone has been established, the system will attempt to keep the control sensor reading with in this range. The capacity control stage calculation is in hold if the chiller running in control zone.

1.1.3. Controlling Sensor This is the sensor that has been specified as leaving temperature.

1.1.4. Trend of Load The Trend of Load is how fast the control value is changing over a period of time. If the control value is increasing the rate will be positive, if decreasing the rate will be a negative value. How fast the input is changing, its direction and where the current input reading is in relationship to the control zone will determine what action the system will take.

1.1.5. Slide Valve Countdown The system will not attempt to take action until the Slide Valve Count down reaches zero. The speed that it is decrement by is based upon the Trend of Load of control input value and the slide Response that has been specified.

1.1.6. Slide Response The purpose of the Slide Response value is to limit or dampen how fast the slide reacts to changes indicated by the control sensor. The lower the number, the faster the system will react to changes of the control sensor. The Control Status portion of the Status screen is shown below. Chiller information:

62

•

Capacity Control State - State of chiller

•

TIME - time in that state, if the state is UNIT IN POWER UP time will decrement to zero

•

Steps wanted / Steps Actual On - Number of steps wanted on verses the actual steps turned on verses the total steps on the chiller.

USER'S MANUAL

•

Slide Valve Countdown - value that is counted down. The Slide Response and where the control temperature is in relationship to the control zone will determine the speed of the count down. When the value decrements to zero, the system will determine if a change in the systems capacity is required.

•

Wanted Slide % - Wanted slide percentage

•

Trend Of Load – Trend Of Load of control sensor, the speed at which the control sensor is changing. Circuit information (all active circuits will be displayed):

•

Circuit Number and State - Circuit number and state.

•

TIME - time in that state, if the state is CMP ANTICYCLE time will decrement to zero.

•

Oil Diff - Oil differential pressure. Oil differential pressure is calculated as follows: Semi hermetic screws; Oil psi – Suction psi or Discharge psi – Suction psi.

•

Lead - indicates the lead compressor.

•

FLA %: Full Load Amps based on the set point.

2. Capacity Control State Capacity Control States are active for all five releases of software.

UNIT IN POWER UP This state is entered when the Controller is powered up or the system has been reset. The system will remain in this state for the time specified in set point POWER UPDELAY, set point 23, or if not active for 60 seconds. In this state all points (RO’s) are turned off. This is a time delay to insure the controller has stable power before starting the algorithm.

UNIT IN LOCKOUT This state is entered whenever a critical situation is encountered that could cause harm to the chiller package. Items such as freeze protect and emergency stop will force the system into this state. Lockouts can be reset with user level authorization from the keypad; however if the lockout condition has not been corrected, the system will again be forced into the LOCKOUT state. NOTE: If the Lockout reset is pressed more than 10 times in a day the unit cannot be reset till Factory authorization.

EXPANSION BOARD OFFLINE This state will be entered whenever the controller loses communications with any of the I/O boards that are connected via the network. When this state is entered the system will generate an off line alarm, which locks out the unit. The lockout-reset key must be depressed to reset the system, after the lost I/O has been corrected.

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SWITCHED OFF This state is entered when the run stop switch is off, in the stop position. When the chiller is in this state, the individual circuit states if active are moved to the CMP IS OFF state through the normal states.

SCHEDULED OFF This state is entered when the schedule is calling for the package to be off. When the chiller is in this state, the individual circuit states if active are moved to the CMP IS OFF state through the normal states.

OFF- NO EVAP FLOW This state is entered when the evaporator flow switch is off. When the chiller is in this state, the individual circuit states if active are moved to the CMP IS OFF state through the normal states. The controller will generate the alarm in this condition and not required to be reset if alarm is clear.

UNIT IS HOLDING This state is entered when one of three conditions exists: 1. The control sensor reading is being maintained with in the control zone. 2. Control sensor reading is above the control zone but the Trend Of Load is less than the value in the set point. This indicates that the temperature is decreasing toward the target at an acceptable speed. Therefore, no additional cooling is needed at this time. 3. The temperature is below the control zone but the Trend of Load is greater than the set point. This indicates that the temperature is increasing toward the target.Therefore, no reduction in cooling is needed at this time. This state indicates that there is no need to adjust the cooling capacity of the chiller package. This state will be exited when more or less capacity is required.

3. Circuit Control States The action of the circuit control states actually result in more, less or no change in the amount of cooling capacity. The CAPACITY CONTROL STATES dictate how the individual circuits move within their states.

CMP LOCKED OUT This state is entered when the Capacity Control State is LOCK OUT or a safety set point for this circuit has indicated that a critical situation has been encountered. Set points such as LOW SUCTION, HI DISCHARGE PRESSURE etc. are examples of safety set points. Lockouts can be reset with USER level authorization from the keypad; however if the lockout condition has not been corrected, the circuit will again be forced into the LOCKOUT State.

SAFETY TRIPPED This state is entered when a safety trips but a lockout is not to be generated. An alarm is generated but the system will restart after the delay specified in the corresponding set point. If a second trip occurs within the time specified in the set point, the circuit will be placed in the CMP LOCK EDOUT State.

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CMP OFF / READY This state is entered when no cooling capacity is required from this circuit or the prior state was CMP ANTICYCE, LOST IO LOCKED or SWITCHED OFF. In this state the circuit is ready to provide cooling capacity if needed. The circuit will remain in this state for a minimum of 60 seconds.

CMP PMP DOWN This state is entered whenever the pump down switch has been turned on or if this circuit is no longer wanted on. The compressor is on and the liquid line solenoid is closed. This state is active until the suction pressure reaches the value in the set point PMP DWN DELAY. The circuit will then move to the ANTICYC State.

CMP ANTICYCLE This state is entered when the PMP DWN State has been completed. The circuit will stay in this state with all circuit points off for the period of time contained in either set point “ANTYRECYCLE TIME “. The circuit will then move to the OFF State.

FAST UNLOADING For screw compressors, this state is entered when the compressor is turned on. The system will remain in this state for 60 seconds while the “fast unloader” and unload points are on. This is to ensure that the screw is unloaded.

CMP IS HOLDING This state only exists for infinite step compressors (Three solenoid valve SV1,SV2 & SV3 ). In this state, the required refrigeration capacity of system is being meant; no movement of the slide valve is required.

CMP IS AT 25% This state is when the compressor is providing 25% of its capacity. In this state, the relay output to activate the 25% valve is turned on.



CMP IS AT 100% This state is when the compressor is fully loaded. In this state, the circuit is providing the maximum amount of cooling capacity.

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HI DISC UNLOAD Refer to set points HI DISCH PSI, HI DISC UNLD, HI DISC RELD7 and HI DISCH TMP, HI DISCH UNLD and HI DISCH RELD. This state is entered when a fully loaded circuit, that has more than one step, has encountered either a dangerously high discharge pressure or discharge temperature. One step of cooling capacity will be turned off. The circuit will remain in this state for a minimum of five minutes before returning to the LOADED state if the dangerous condition has been corrected. When capacity is being held due to a high discharge condition, once the discharge goes to normal operating condition the circuit will return to its appropriate state.

LO SUCT UNLOAD Refer to set points, LOW SUCTION, LO SUCT UNLD and

LO SUCT RELD.

This state is entered when a fully loaded circuit, that has more than one step, has encountered a dangerously low suction pressure. One step of cooling capacity will be turned off. The circuit will remain in this state for a minimum of five minutes before returning to the LOADED State if the dangerous condition has been corrected. When capacity is being held due to a low suction pressure condition, once the suction pressure returns to a normal operating condition the circuit will return to its appropriate state. This should be same for “LOW GAS “

LO TMP UNLOAD The circuits leaving liquid temperature have caused the system to unload. When the leaving liquid temperature gets to within 1.5 degrees F of the Freeze set point, the unload will occur before we hit the freeze protect safety.

HI AMP HOLD This state is entered when a fully loaded circuit, that has more than one step, has encountered a dangerously high AMP draw. Refer to set points for FLA per circuit and HI AMPS %. In this state, one step of cooling capacity will be turned off. The circuit will remain in this state for a minimum of five minutes before returning to the LOADED State if the dangerous condition has been corrected.

4. Condenser Control Logic 4.1 Condenser Fan Cycling Logic The air condenser set points are as follows: Set point CND STG1 ON - Condenser stage 1 cut in (ON). Set point CND STG1 OFF - Condenser stage 1 cut out (OFF). Set point CND DIFF ON - Differential between condenser stages for cut in (ON). Set point CND DIFF OFF - Differential between condenser stages for cut out (OFF). Set point CND MIN RUN - Minimum run time for a condenser stage when the discharge pressure reaches this value the first condenser point is turned on. If additional condenser points exist, they will be turned on when the pressure exceeds the previous cut in value plus the value contained in (COND DIFF IN) set point.

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As the discharge pressure is reduced, the condenser points will be turned off based upon the set point (COND ST1 OFF) value plus the condenser step times the value contained in (COND DIFF OUT) set point. The first step will be turned off based upon the valve in the set point (COND ST1 OFF). Example Set point 45 CND STG1 ON = 200.0P Set point 46 CND STG1 OFF = 170.0P Set point 47 CND DIFF IN = 20.0P Set point 48 CND DIFF OFF = 5.0P COND FAN1 ON @ 200.0P DISCHARGE COND FAN 1 OFF @ 170.0 P COND FAN2 ON @ 220.0p (200.0 + 20.0) COND FAN2 OFF @ 175.0p (175.0 + 5.0) COND FAN3 ON @ 240.0p (220.0 + 20.0) COND FAN3 OFF @ 180.0p (170.0 + 10.0), etc.

5. Set Point Definitions 5.1 SET POINT TYPES: There are three different types of set points. The type determines the action that the system will take.

5.1.1. SET POINT This type of set point’s value contains a target or provides information for some type of action. The time element in this type is not used

5.1.2. LOCKOUT This type of set point’s value contains a safety level and the time that the safety must be violated before the safety will trip. Once a safety has tripped the system will take the appropriate action, shutting down the entire package or an individual circuit (compressor) depending on the purpose of the safety. The system will then wait the safety down time contained in that set point before trying to return the system to normal. If successful, the system will continue to operate. If a second trip occurs on the same set point with in the lock out delay time that is contained in that set point the system will move to a LOCKOUT state. IF THE LOCKOUT DELAY TIME IS SET TO ZERO THE LOCKOUT WILL OCCUR ON THE FIRST TRIP. This will require manual intervention to reset the system. With each safety trip, the system will generate an alarm; refer to Alarms and Safeties section of this manual.

5.1.3. ALARM This type is similar to the LOCKOUT set point except it will never cause a lock out. The system will continue to try to return to normal operation after waiting the safety down time. An ALARM set point type will never require manual intervention to reset the system.

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6. Set Points for Chiller Controller Algorithm 6.1 Control set points 1.

CTL TARGET Controlling target is used with the ctl zone & slope and is leaving liquid

2.

CTL ZONE + Added to the CTL TARGET to create the top of the control zone.

3.

CTL ZONE - Subtracted from the CTL TARGET to create the bottom of the control zone.

4.

L.INJECT.ON Liquid injections is turned on when the discharge temperature is equal to or greater than this set point and turned off when the discharge temperature is less than this set point minus 5.

5.

POWERUP DELAY This is the time that the system will remain in the START UP state before moving to the next state.

6.2 Capacity Control Logic 1

SLIDE RESPONCE This value is used to adjust the speed of responding to changes in the control algorithm. 1= faster response HIGHER number’s = slower response.

2

SLIDE VALVE COUNTDOWN This is the time delay before increasing or decreasing the number of refrigeration steps.

3

MAX TREND OF LOAD - Maximum negative Trend of Load allowed before stopping the unit from loading. If the actual ROC is less than this value the capacity control state is placed in the HOLDING state.

4

MAX TREND OF LOAD + Maximum positive Trend of Load allowed before stopping the unit from unloading. If the actual ROC is greater than this value the capacity control state is placed in the HOLDING state.

5

TREND OF LOAD INTERVAL Number of second between the samples used for calculating the actual Trend of Load

6.3 Set Points for Compressor Control 1

ANTYCYCLE This is the anti cycle time delay (in seconds) based on when the compressor was turned off. It will vary from compressor to compressor.

2

PMP Down Delay Maximum time delay (in seconds) that a compressor can remain in the PUMP DOWN state.

3

Comp Min Run this is the minimum run time (in minutes) for a compressor once it is turned on. This minimum run time is bypass only for the safeties.

4

FLA Comp#1 Full Load Amps for the compressor on circuit 1. This value is used to calculate the high and the low ampere safeties limits.

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6.4 Set Points for Compressor Safeties 1.

HI AMPS : This set point is a percentage of the FLA; it is used to create the high amp draw limit. This value is tested in the high amp safety, if the amps exceed this value for the time specified in this set point the safety is tripped.

2.

LOW AMPS : This set point is a percentage of the FLA; it is used to create the low amp draw limit. This value is tested in the low amp draw safety, if the amps exceed this value for the time specified in this set point the safety is tripped.

3.

LOW SUCTION : If active, the system checks for low suction pressure for each running compressor. The system will compare the suction pressure sensor reading to this value. It must be less than the value for the period of time specified in the set point before this set point will trip.

4.

LOW SUCT UNLOAD: The purpose of this set point is to take corrective action before a low suction pressure safety occurs. If a circuit has more than one step and it is fully loaded and if the suction pressure is less than the value of the safety set point (LOW SUCTION) plus the value of this set point, the system will turn off one step of capacity.. The circuit state will be changed to LO SUCT HOLD. The circuit will remain in this state for a minimum of 5 minutes. At that time, if the suction pressure has increased to a level greater then the value of set point LOW SUCTION plus the value of set point LOW SUCT RELD the compressor will return to normal control.

5.

LOW SUCT RELD: The system will force to load if requirement ,if this setpoint is satisfied

6.

UNSAFE SUCT : If active, the system checks for low suction pressure that is in an unsafe condition for each running compressor. The system will compare the suction pressure sensor reading to this value. It must be less than the value for the period of time specified in the set point before this set point will trip. Note the time period specified should be very short, 2-5 seconds. This safety set point trips the circuit to the LOCKOUT state immediately, no retry.

7.

HI DISC PSI : If active, the system checks for high discharge pressure condition for each running compressor. The system will compare the discharge pressure sensor reading to this value. It must be greater for the period of time specified in the set point before this safety will trip.

8.

HI DISC UNLOAD : The purpose of this set point is to take corrective action before a high discharge pressure safety occurs. If a circuit has more than one step and it is fully loaded and its discharge pressure exceeds the value of the safety set point HI DISCH PSI minus this set point, the system will turn off one step of capacity. A screw compressor will be forced to unload until the discharge pressure falls below the calculated value. The circuit state will be changed to HI DISC HLD. The circuit will remain in this state for a minimum of 5 minutes. At that time if the discharge pressure has dropped below the value of the HI DISCH PSI minus the HI DISC RELD the compressor will return to normal control.

9.

HI DISC RELD : This set point works same as Low Suct Reld

10. LOW DISC PSI : If active, the system checks for low discharge pressure. The system will compare the sensor reading to this value. It must be less than the value for the period of time specified in the set point before a safety trip occurs. 11. HI DISC TMP : If active, the system checks for high discharge temperature condition for each circuit that has at least one step on. The system will compare the discharge temperature sensor reading to this value. It must be greater for the period of time specified in the set point before this safety will trip.

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12. HI DISC UNLOAD : The purpose of this set point is to take corrective action before a high discharge temperature safety occurs. If a circuit has more than one step and it is fully loaded and its discharge temperature exceeds the value of the safety set point HI DISCH TMP minus this set point, the system will turn off one step of capacity. A screw compressor will be force to unload until the discharge temperature falls below the calculated value. The circuit state will be changed to HI DISC HLD. The circuit will remain in this state for a minimum of 5 minutes. At that time if the discharge temperature has dropped below the value of the HI DISCH TMP minus the HI DISC RELD the compressor will return to normal control. 13. HI DISC T RELD : This set point works same as LOW SUCT RELD 14. LOW OIL DIF : If active, the system checks for low differential oil pressure. The system will compare the calculated differential oil pressure to this value. It must be less than the value for the period of time specified in the set point before the safety will trip. 15. UNSAFE OIL : If active, the system checks for low differential oil pressure. The system will compare the calculated differential oil pressure to this value. It must be less than the value for the period of time specified in the set point before the safety will trip. The time delay for this set point should be very short 2-5 seconds. These safeties trips to a lockout no retry are attempted. Manual intervention is required. 16. HII OIL TEMP : If active, the system checks for high oil temperature. The system will compare the oil temperature sensor reading to this value. It must be ON or greater for the period of time specified in the set point before this set point will trip. The sensor can be either an analog or digital input. 17. SAFETY HOLD DELAY : Time in seconds to hold before trying to reload when the capacity has been decreased to avoid a safety, (Examples: high disc psi, high disc temp, low suct psi, etc,) 18. LEAD COMP. Enables the user to specify the lead compressor. 19. COMP. ROTATION Specifies the number of days between rotation

6.5 Set points for Unit Safeties 111 FREEZE If active, the system checks for freeze protection. The system will compare the chilled water out temperature to this value. It must be less than the value for the period of time specified in the set point before this safety will trip.

6.6 Economizer Set Points Economizer On % the set point at which Economizer will get ON Economizer Off % the set point at which Economizer will get OFF

6.7 Oil Differential Calculation The calculation is DISCHARGE PRESSURE minus SUCTION PRESSURE.

7. Authorization Function The authorization code is a special four-character code that enables access in to the system. The code must be numeric with values between 0 and 9if it is to be entered from the Keypad/Display. This provides the capability of issuing different codes to different people if desired. There are four levels of authorization, which provide different capabilities with in the system. The authorization code and the

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associated level cannot be displayed in system. The authorization codes must be protected and remain confidential, if they are compromised unauthorized personnel can gain access to the system. The two level of safety has been provided 1. User level - Authorized to Change Water leaving set point within the Min & Max value, lockout reset and control zone 2. Factory Level - Authorized for rest of all the things

7.1 RESTORE FACTORY SETTING AND DATA LOGGING 7.1 .1 If some modification has been made in the program SETPOINT, the factory setting can be restored through the set point “Restore Factory Setting” at any movement. 7.1.2. Maximum 100 alarms can be stored with SP, DP and Current reading during trip. The last 20 Dynamic reading with the interval of 1 second will also get stored which will updated with the mention time interval.

8. On/Off Switches The following digital input switches can be associated with the system, their action will affect the chiller package or an individual circuit, and then action will only affect that circuit:

•

Flow switch, if off the system has lost flow. The system wills either lock out, if NO FLOW set point is active, or shut down, if NO FLOW set point is inactive.

•

Pump down switch, if on and the compressor is off, will not start the compressor. If the compressor is on, the system moves to the pump down state to begin the process of turning off the compressor(s) in normal steps.

•

Run/Stop, if off the system will not run. This is usually wired to a RUN/STOP switch that is manually positioned. If the system is running, the system moves all circuits (compressor) to off in normal steps. (If a RUN/STOP and a Network RUN/STOP are both available they operate in series.)

•

Emergency Stop switch, if on, the system will be shut down immediately and will remain disabled until the switch is off.

9. Operating Schedules Two operating schedules per each day of the week and 8 holidays are supported. Each schedule contains a start and end time, if the time and day of the system is with in these limits the schedule is true and the system will be allowed to run. If not, the system will be off due to schedule.

10. Compressor The compressor with the least number of TOTAL RUN HOURS will become the lead. Refer to Set points #103 & #104.

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11. Alarms and Safeties 11.1 Introduction There are three types of alarms that are generated by the Carel control logic:

•

Information only alarms,

•

Controller system alarms and

•

Chiller set point safety alarms.

All of the alarms have the same format. The alarm is identified and it is date time stamped. Alarms can be viewed from Carel controller by pressing the ALARM STATUS (4) key or from the PC-Connect Program.

Sensor inputs used in conjunction with Controller set point safeties: 11.1.1 Suction Pressure - Pressure transducer to read the suction pressure. 11.1.2 Discharge Pressure - Pressure transducer to read the discharge pressure. 11.1.3 Oil Differential Pressure - Calculated value of the oil pressure as follows: Screws without oil pump, discharge psi minus suction psi 11.1.4 Oil Temperature - Either a temperature sensor or a digital input that indicates when a high temperature condition exists. 11.1.5 Discharge Temperature - Either a temperature sensor or a digital input that indicates when a high temperature condition exists. 11.1.6 Motor Amps - Sensor input that measures AMP draw of the compressor. (Optional digital input) 11.1.7 Liquid Temperature - Temperature sensor that can be used to detect a freeze condition 11.1.8 Flow Switch - A digital input that indicates that flow through the chiller barrel exists. There can be one switch per chiller or one for each circuit. 11.1.9 Set point safeties - For a safety to be interrogated, both the associated sensor input and the lockout set point must be active. If a safety trips, the alarm name will consist of the set point name plus additional identification such as point number or circuit number if applicable. The system exercises “smart” safety testing in the following manner: If a safety applies to a circuit and it is an active lockout type of a set point, the first time this safety trips an alarm will be generated and the circuit will be shut down and placed in a safety state. The system will attempt to reactivate this circuit after waiting the length of time specified in this set point, safety down time. If successful the system will continue to run. If the same safety trips the time specified in the lockout delay time, the circuit will be locked off and a manual intervention is required. If the lockout delay time is set to zero, the system will generate a lockout condition the first time that the safety occurs. The time in the safety state and the time between safeties are specified in the individual set points. This enables the times to be unique for each lock out set point.

Most safeties are checked only if the Compressor is running, if he safety is always checked it will be so noted.

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The following are a list of safeties that are incorporated in the standard chiller algorithm control. These safeties are checked every second. Note, for a multiple circuit system, each circuit is tested individually. If a safety condition exists, action will be taken with that circuit only, other circuits will continue to function.

11.1.10 Freeze Protection (Safety is always checked) If the leaving liquid temperature drops below the set point value the system, and all circuits, will enter a lockout state and a freeze notification alarm will be generated. You have the option of one freeze protect for the package or individual freeze protections by circuit..

11.1.11 No Flow Protection If the flow switch is for the chiller system, then the entire system will be shut down and automatically restarted when the flow switch is on, indicating that there is flow.

11.1.12 Phase Loss Protection Phase loss, as indicated by the phase loss monitor, will result in the system and all circuits being locked off and a phase loss notification alarm will be generated. No set point is required.

11.1.13 Emergency Stop Emergency stop, as indicated by the emergency stop switch, will result in the system and all circuits being locked off and an emergency stop notification alarm will be generated. No set point is required.

11.1.14 Low Differential Oil Pressure This safety is designed to meet the compressor manufacturer requirements on oil pressure. For the first 5 (60 seconds if setup as Hitachi screw compressors) seconds following a compressor start this safety is NOT checked. For the next 30 seconds, if the oil differential pressure drops below ½ of the value of the set point or the digital input turns ON and it remains there for the time specified in the safety time of that set point, the compressor will be locked out and a low oil alarm generated. After this time period, if the oil differential pressure drops below the value of the set point

11.1.15 Low Suction Pressure If the suction pressure drops below the value of the set point or the digital input turns ON and it remains there for the time specified in the safety time, the compressor will be locked out and a low suction alarm generated. For the first 5 minutes after the compressor has started the set point will be ½ , this enables the set point safety time to be set much tighter for normal operation. This safety is bypassed when the compressor is in the “CMP PUMP DOWN” state. This safety can also be used as a freeze protection based upon the suction PSI.

11.1.16 Unsafe Suction Pressure This safety is similar to the low suction pressure safety except this set point can be set up with a lower value and a very short safety time. If the suction pressure drops below the value of the set point or the digital input turns ON and it remains there for the time specified in the safety time of that set point, the compressor will be locked out and a low suction alarm generated. This safety will always cause a lock out on the first trip requiring a manual reset to restart the compressor. For the first 5 minutes after the compressor has started the safety time is extend by twice the normal time delay, this enables the set point safety time to be set much tighter for normal operation. . This safety is bypassed when the compressor is in the “CMP PUMP DOWN” state.

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11.1.17 Low Discharge Pressure If the discharge pressure drops below the value of the set point and it remains there for the time specified in the safety time of that set point, the compressor will be locked out and a low discharge alarm generated.

11.1.18 High Discharge Pressure (Safety is always checked) If the discharge pressure rose above the value of the set point or the digital input turns ON and it remains there for the time specified in the safety time of that set point, the compressor will be locked out and a high discharge alarm generated.

11.1.19 High Discharge Temperature (Safety is always checked) If the discharge temperature analog input rises above the value of the set point or the digital input turns ON and it remains there for the time specified in the safety time, the compressor will be locked out and a high temperature alarm generated.

11.1.20 HI Motor Temperature or Motor Fault (Safety is always checked) If the high motor temperature input rises above the value of the set point or the digital input turns ON and it remains there for the time specified in the safety time, the compressor will be locked out and a high motor temperature or motor fault alarm generated.

11.1.21 Hi Oil Temperature If the oil temperature rises above the value of the set point or the digital input turns ON and it remains there for the time specified in the safety time of that set point, the compressor will be locked out and a high oil temperature alarm generated.

11.1.22 Low Motor Ampere If the ampere analog input drop below the value of the set point and it remains there for the time specified in the safety time of that set point, the compressor will be locked out and a low motor amp alarm generated. This alarm can be used to indicate low refrigerant. This safety is bypassed for the first 3 seconds after a compressor has started.

11.1.23 Oil Level Low If oil level drop below the required minimum level, the controller will display the alarm as ‘Low Oil Level”. The safety will bypass for 60 minutes during running and 60 second during the start up of compressor.

12. Control States Quick Reference Control States tell the user the system’s status; this information is critical. From the Carel keypad / display, press the menu key and select STATUS> The control status is the second line. Carel Control States Quick Reference. Control States tell the user the system’s status; this information is critical!

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Capacity Control States Description UNIT IN POWER

System Reset or PowerReturned (delay of 60 seconds or set point value)

CMP OFF/READY

Circuit ready but not required or has not been in this state for 60 seconds

UNIT IS OFF

System ready to run but no cooling capacity required

RUN/STOP SW OFF

Disabled: run/stop switch is off.

FAST UNLOADING

Fast unload screw compressor at start up.

SCHEDULED OFF

Disabled: operating schedule is false.

OFF NO EVAP FLOW

Disabled: no evaporator flow.

CMP IS HOLDING

Control temperature with in target control band,

UNIT IN LOCKOUT

Chiller locked out, all pointsexcept alarm point are OFF

HI DISC UNLOAD

Pulse screw unload solenoid because discharge temp or pressure is too high

NO RUN- IO LOST

Lost communication Chiller locked out

HI DISC HOLD

Holding until discharge temp or pressurereturns to normal

UNIT IS HOLDING

No change in capacity

LO SUCT UNLOAD

Pulse screw unload solenoid or unload 1step, suction temp or pressure is too low

LO TEMP UNLOAD

Comp unloading, temperature less than 1.5 F above freeze point.

LO TEMP HOLD

Hold until temperature is 3.0 F above freezing point.

CMP PUMP DOWN

Pumping down

CMP ANTICYCLE

Delay after turning off circuit

SWITCHED OFF

Pump down switch on or system state is

SAFETY TRIPPED

Safety tripped not LOCKOUT

EXPANSION BOARD OFFLINE

Lost communication

HI AMP HOLD

Circuit is in hold due to hi amps. Can only be unloaded.

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13. User Interface User interface connected to the controller will show the current value of parameters (e.g. Temperature), current status of equipments (fans, compressors) and current setting of set points. Changing of set point is password protected to avoid unauthorized intervention.

Whenever the curser is at left extreme of first line Keys are used to scroll though the screens of same level.

Left extreme of first line

When the curser is at any input variable same keys are used to increment or decrement the value of parameter. Leaving Water temp. Control Set Point Set Temp.

00.0°C

Parameter

Differential 00.0°C

While key is used to enter the displayed parameter in CPU memory & the curser moves to next parameter.

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Depending upon level of access all screens can be divided into 3 categories: 1. Status level: Information on these screens can be viewed only & not allowed to be modified. No password is required for accessing these screens. 2. User level: This is password-protected level & contains process related set points, which an operator may need to change. 3. Factory Level This is again password-protected level, which has parameters, related at manufacturing level. These parameters are not needed to be changed frequently. a) Default

LWT 70.0°F Comp1 OFF Comp2 OFF

0% 0%

This is a default screen i.e. if Esc (Esc) key is pressed from any screen an operator will finally return on this screen. This displays Leaving water Temperature and status of compressors Status of compressor is displayed as explained after this table with present loading of compressor and countdown timers(for antirecycle ,Ready and safety unload). By using arrow keys, different screens of this level can be accessed

SP DP DT CU

000.0PSI Comp 1 000.0 PSI 000.0°F 000.0Amp

These two consecutive screens show different analog readings values related to Compressor1. SP – Suction pressure DP – Discharge pressure DT – Similar screens for Compressor CU – Current

Comp 1 Sucion Saturation Temperature 000.0°F Diff Pres 000.0PSI

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SP DP DT CU

000.0PSI Comp 2 000.0 PSI 000.0°F 000.0Amp Similar Screens for Compressor 2

Comp 2 Sucion Saturation Temperature 000.0°F Diff Pres 000.0PSI

Press enter to view alarm history

01 01/12/55 10:30 Unsafe Oil comp 1 SP 70 DP 80 CU 90

02/12/07 01:43:52 Current Login None Press Enter to Logout

78

Next screen shows Entering water temperature and individual cooler leaving temperature (only in case of twine cooler)

Alarm history can be accessed by pressing key while this screen is shown

°

Entering water Temperature 000.0°F WaterOut 1 T 000.0°F WaterOut 2 T 000.0°F

Alarm history screen shows resent alarm with corresponding date, time and suction pressure discharge pressure and current of related compressor at the time of alarm. With keys past 100 alarms can be viewed. Upper left corner always shows the index of Esc present alarm. By pressing key one can go back to previous screen This screen present login status and also provides facility to logout. In login status it will show “User” or “Factory” if respective password is entered earlier. In case of logout it will show “None”. Pressing Enter while this screen is displayed enables logout.

USER'S MANUAL

Meaning of status display of compressor – 1. Comp1 OFF :- Compressor is selected to be off by the toggle switch 2. Comp1 Ready: - Compressor is selected to be ON by selector switch, all safety delays are over (if compressor was tripped earlier), lockout is reset and the compressor ready to get ON. This state is hold for 1 minute and then compressor is turned ON depending upon the demand. a.

Comp1 Low Demand: - Compressor is healthy but OFF because of low demand.

b.

Comp1 ON:- Compressor is ON with required loading. This is accompanied with the loading percentage (25%, 50%, 75% or 100%)

c.

Comp1 Loading:- Compressor is loading.

d.

Comp1FastUnl:- This state comes at every start of compressor for initial 30 seconds during which compressor first to 25% if not during last shutoff.

e.

Comp1 Unloading:- Compressor is Unloading due to decreasing demand or proactive unloading.

f.

Comp1 Safty Hold:- In the course of proactive unloading when compressor comes out of unloading condition and gets ready to load again this state is held for 3 min for confirmation. During this stage loading of compressor as per demand is prohibited.

g.

Comp1 Trip: - Compressor is tripped on some safety interlock and the fault condition still persists.

h.

Comp1AntiRe:- Compressor has tripped due to some fault or low demand and waiting for anti recycle time. During this state countdown in seconds is also displayed on the display. Compressor is prohibited from starting until countdown timer reaches zero.

i.

Comp1 Lockout:- Compressor had one of the serious fault occurred twice in the interval of one hour due to which compressor is locked out. In this situation compressor will not start even if fault condition is cleared and anti recycle is over. An operator has to reset the lockout with keypad at User level. After resetting compressor goes in Ready state.

j.

Comp1DayLockout:- Compressor had 10 lockouts in the interval of one day (starting from 00:00 at midnight till next mid night). In this situation compressor is prohibited from starting for that day. Number of lockouts of each day is reset at mid night. After that an operator can start the compressor.

b) User Level For going to this level from any screen operator needs to press navigation screen

User Factory Level

(Prg) key once & he will reach the

This screen shows 3 options out of which middle one is bold and big. On pressing Enter key on this screen Operator will be taken to that level which appears at middle(only after entering respective password). With keys different options can be called.

Status Level

Prg

79


User Password 0000

This is the password entry screen. Operator can get to the value of password with keys while pressing key will enter the password. If password is wrong message will be shown otherwise operator will directly go to the next screen of user level.

°

80

°

New User Password 0000

This screen allows facility to reset the lockout. Operator need to bring the curser an “N” by pressing. Then with keys it has to be made “Y” and then key should be pressed to reset the lockout.

°

Reset Lockout for Comp 1 N Comp 2 N

From this screen operator can enter the set point & differential for each Unit. Again the values can be changed with keys while pressing key will enter the set point.

°

Leaving Water Temp Setpoint 045.0°F Con Zone (-) 01.0°F Con Zone (+) 02.0°F

This screen is meant for the operator to change the password for USER LEVEL.

USER'S MANUAL

c) Status Level For going to this level from any screen operator needs to press (Prg) navigation screen

Status User Level

key once & he will reach the

This screen shows 3 options out of which middle one is bold and big. On pressing Enter key on this screen Operator will be taken to that level which appears at middle(only after entering respective password). With keys different options can be called.

Factory Level

Prg

Analog Inputs Comp 1 Suction P 000.0PSI Discharge P 000.0PSI Discharge T 000.0°F

Analog Inputs Comp 1 Suct Sat T 000.0°F Current 000.0Amp Diff Pres 000.0PSI

Dig Inputs Comp 1 Flow Switch Close SPPR Close Oil Float sw Close

Status screens show status of analog inputs, Digital inputs, Digital outputs and the important parameters related to the compressor. It doesn’t requires any password as the screens are only for viewing and modification is not possible at this level. Using keys one can go through all of these screens

Analog Inputs Comp 1 WaterOut T 000.0°F

Dig Outputs Comp 1 Comp main OFF USV1|USV2|USV3|LQINV OFF |OFF |OFF |OFF

Comp 1 Lockouts Today 00 Runhours 00000Hrs

81


Analog Inputs Comp 2 Suction P 000.0 PSI Discharge P 000.0PSI Discharge T 000.0°F

Analog Inputs Comp 2 Suct Sat T 000.0°F Current 000.0Amp Diff Pres 000.0 PSI Similar screens fir compressor 2 if present Analog Inputs Comp 2 WaterOut T 000.0°F Dig Inputs Comp 2 Flow Switch Close SPPR Close Oil Float sw Close

Dig Outputs Comp 2 Comp main OFF USV1|USV2|USV3|LQINV OFF |OFF |OFF |OFF

Comp 2 Lockouts Today 00 Runhours 00000Hrs

T.O.L. Parameters:T.O.L. 00.0 SP Countdown 000 Demand 000

82

This screen shows important parameters related to the control algorithm getting executed according to the trend of load

USER'S MANUAL

Press enter to view Current log for Compressor 1

Press enter to view Current log for Compressor 2

01 Comp 1 Data Log 01/11/07 10:32:44 Current 096.0Amp SP 056.0 DP 120.0

Last 20 readings of present compressors during running can be accessed from these screens. Pressing key on particular screen will show readings of respective compressor

This is an example of data log screen which shows last reading of current suction discharge pressure along with date and time stamp. Similar screen can also show data of compressor 2. With keys past 20 logs can be viewed. Upper left corner always shows the index of Esc present log. By pressing key one can go back to previous screen.

83


Troubleshooting of Controller Description

Possible causes

Remedies

1. PDG terminal is blank (no backlit )

•

Controller is not powered ON.

Check controller power status from yellow power LED.

2. Backlit of PGD is ON but it is blank or shows “NO LINK”

•

Display cable is not connected properly.

If controller is powered ON check for proper insertion of telephone connector.

•

Address setting of PGD or controller is not proper.

•

Telephone cable between PGD and controller is faulty

•

Address setting of PGD or controller is not proper.

•

Probe is disconnected (-999.9) or shorted(999.9)

•

Wrong probes are connected

3. After making PGD address 0 and controller power OFF/ ON cycle “self test” screen of controller doesn’t appear. 4. On default screen LWT is seen in smaller font. 5. Temperature reading shows -999.9 or 999.9 value

•

6. Temperature or pressure reading shows erratic or negative reading.

•

7. Digital input giving nuisance alarm

•

8. Output is not getting ON

•

Dip switch setting is not done properly Wiring for digital input is open at terminal block or at field IDC for digital input is not connected to G0 of controller Common for that output block is not given proper power

Check for address of PGD (UP+DOWN+ENTER keys for 5 sec) it should be 32. If PGD address is 32 and still it is blank then check for controller address. It should be 1 Check for proper connection of telephone cable and it’s connector. Check for lead wise continuity between two ends of cable. Make controller address 1 and PGD address as 32. Check for proper connection of probe Check for proper probes and connection. Check +Vdc connection for pressure probe Check for continuity between GND on electrical terminal and on pCO1 terminal Check for correct dip switch setting. While making analog input connections isolation from mains supply is must

84

USER'S MANUAL

Troubleshooting Shut Down of Compressor 1) Shut down the Chiller by switching off the required switch provided in the Panel. 2) Stop the chilled water supply to the Cooler. In case of long term shutdown required because of the retrofit of the system or overhauling of the compressor follow the above instructions after reinstallation of the system before starting up again to ensure the safety and good running condition of the compressor

Troubleshooting Sr. No. 1

Problems Sudden trip of motor thermister / Sensor

Problem Cause 1) Low suction pressure or high suction temperature (lack of refrigerant or clogged suction filter) or high suction superheat. 2) Motor overload. Liquid injection system failure. 3) Motor winding thermister failure. 4) Unstable electrical system or failure. 5) Bad motor coil winding causing the motor temperature to rise rapidly.

2

Compressor Unable to load

1) Low ambient temperature or High oil viscosity. 2) Capillary clogged 3) Modulation solenoid valve clogged or burnt. 4) Internal built in oil lines clogged.- Clean the oil line. 5) Oil filter cartridge clogged. - Clean Oil filter cartridge. 6) Piston stuck up

3

Compressor unable to unload

1) Modulation solenoid valve clogged or burnt.repair Solenoid valve. 2) Piston rings worn out or broken, or Cylinder damaged resulting in leakage. 3) Insufficient lubricant. – Add Lubricant 4) Leakage at discharge cover plate end side. 5) Solenoid valve voltage incorrect. 6) Capacity control logic unsuitable piston stuck-up.

85


Sr. No. 4

Problems

Problem Cause

Poor insulation value

1) Bad compressor motor coil

of motor

2) Motor power terminal or bolt wet or frosty 3) Motor power terminal or bolt bad or dusty 4) Bad insulation of magnetic contactors 5) Acidified internal refrigeration system 6) Motor coil running for a long time continuously under High Temperature 7) Compressor restart counts too many times

5

Compressor starting failure or star-delta starter shifting failure

1) Slide valve piston unable to move back to its 25 % original position. 2) Voltage incorrect 3) Voltage drop too high when starting the compressor or magnetic contactor failure. 4) Motor breakdown 5) Phase failure or Phase reversal. 6) Motor thermistor sensor trip. 7) Incorrect power supply connection. 8) Star delta starter timer failure. 9) Discharge stop valve closed. 10) Improper connection between the terminal of star delta wiring. 11) In anti recycling period.

6

High Suction Pressure

1) Cooler water flow rate is higher than the rated flow rate - Maintain the rated flow rate. 2) Cooler water inlet temperature is higher than rated - Supply the rated temperature cooling water at cooler inlet. 3) System is overcharged - Remove the excess refrigerant.

86

USER'S MANUAL

Maintenance Maintenance Schedule Maintain the Chiller periodically in accordance with the schedules shown in the tables that follow:

Air Cooled Screw Chiller Maintenance Schedule Check Points

Daily

Weekly

Monthly

Quarterly

Annually

General Log parameters

X

Check Water Level in expansion tank

X

Check up Oil Level

X

Check for any refrigerant leaks through flare joints, valve glands etc

X

Check and clean refrigerant strainer

X

Check condition of refrigerant drier

X

Clean Air cooled condenser coils

X

Chemical Cleaning of Condenser Coils

X

Clean water line strainers

X

Check quality of water

X

Check healthy operation of safety devices

X

Check tightness of all electrical terminations

X

Top up grease for all motors

X

Apply thermal paste on the temperature sensors

X

Check for any abnormal noise and vibration

X

Check liquid line sight glass/moisture indicator

X

Check water pressure drop in cooler

X

Analyse Oil sample Check suction superheat Check crank case heater

X X X

Carel Controller Check program settings

X

Check fault history

X

Check load/unload furnction

X

Check pump down function

X

Check fan control function

X

Check Clock

X

87


Maintenance Maintenance Schedule Maintain the Chiller periodically in accordance with the schedules shown in the tables that follow:

Water Cooled Screw Chiller Maintenance Schedule Check Points

Daily

Weekly

Monthly

Quarterly

Annually

General Log parameters

X

Check Water Level in expansion tank

X

Check Water Level in Cooling Tower

X

Check for any refrigerant leaks through flare joints, valve glands etc

X

Check and clean refrigerant strainer

X

Check condition of refrigerant drier

X

Clean Cooling tower sump

X

Clean water line strainers

X

Check quality of water

X

Check healthy operation of safety devices

X

Check tightness of all electrical terminations

X

Top up grease for all motors

X

Apply thermal paste on the temperature sensors

X

Check for any abnormal noise and vibration

X

Check liquid line sight glass/moisture indicator

X

Check water pressure drop in cooler

X

Check water pressure drop in Condenser

X

Analyse Oil sample Check suction superheat Check crank case heater

X X X

Carel Controller

88

Check program settings

X

Check fault history

X

Check load/unload furnction

X

Check pump down function

X

Check Clock

X

USER'S MANUAL

Maintenance schedule : Compressor Check Points Compressor

Time period 1000 hrs

2500 hrs

5000 hrs

10000 hrs

15000 hrs

20000 hrs

25000 hrs

30000 hrs

Electrical Insulation

X

X

X

Oil filter cartridge

X

X

X

Suction filter

X

Capacity control piston rings

R

Oil level

X

Oil Motor thermal protector Bearings

X

X

X

X

X

X

X

X

X

Check or Clean

R

Replacement

X

X

X

X

R X

X

X

X

X X

R

Note: If acidity of oil measured is lower than PH 6, replace the oil

89


Spare Parts List Spares for LCAX1-075 D i A / LCAX2-150 D i A Item Baan Code

Description

LCAX1-075 DiA Qty Nos.

LCAX2-150DiA Qty Nos.

Specification

Compressor Spares CDSAI0075

BSC-075A (RC15) Screw Compressor

1

2

VI- 3.0

3101-1143A

Oil Filter

1

2

Φ40*200

3101-1146A

Inner Gasket of Oil Filter Flange

1

2

Teflon 1.5t

3101-1147A-3

Outer Gasket of Oil Filter Flange

1

2

REINZ-AFM 34, 1.5t

3101-1051B

Oil Heater (220V)

1

2

220V, 150W

EASCZ0010

Solenoid Coil for RC comprs.

3

6

220V, SANLAN SMG 1

4401-30

Solenoid Valve (Step Control)

3

6

2743K0R30-4344 SDH12223DS

3101-1003A

Solenoid Valve Gasket

3

6

NOK,1515SPS

3103-2104B

Oil sight glass (O’ ring included)

1

2

Aluminium

3131-1004A-3

3" Gasket

1

2

REINZ-AFM 34, 1.5t

3103-1024C

Suction Filter

1

2

Φ110*103L, 60 Mesh

4405-56

Oil Level Switch

1

2

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

16 Litres

32 Litres

RDEAI0060

Sporlan Expansion Valve OVE-70

1

2

EASBI0140

Sporlan SV B10 S2

Solenoid Valve for Liq.Inj.

1

2

15/208 -230/50

EASBI0145

Sporlan SV B10 S2

Solenoid Valve Coil

1

2

MKC - 2

EASBI0170

Sporlan SV B14 S2 for Economiser

Solenoid Valve

1

2

EASBI0175

Sporlan SV B14 S2

Solenoid Vavle Coil

1

2

FEDBI0140

CTG Dehydrator (core)

2

4

RDEAI0120

Sporlan Expansion Valve TDEX-11 for Economiser

1

2

VAAAZ2010

Valve Angle 1/4 “

8

12

VAAAZ2106

Sporlan Expansion Valve BBIVE-4 for Liq. Inj.

1

2

EASBZ0040

Pilot Sol. Valve (230V)

1

2

SANLAN 1/4" SAE Flare, / 15/240/50 MKC-2 Coil

FAPAZ7020

Bird Wing Fan

4

8

36" Dia. 5 blades

Controls & Accessories Spares

Electrical Spares FAPAZ7018

Motor for Condenser

4

8

1.2 kW, 2.6 A, 700 RPM, 400 V/ 3 Ph/ 50 Hz

MBSAZ1900

Oil Cooler Fan Motor Assessmbly

1

-

230 V, 1 Ph, 70 W, 1250 RPM, 350 mm Dia. FA/23/3514/K3/F

MBSAZ1800

Oil Cooler Fan Motor Assembly

-

1

1 phase, 230 V, 90 W, 1350 RPM, 450 mm dia., VBM, FA 23/4514/K5/F

90

USER'S MANUAL

Item Baan Code

Description

LCAX1-075 DiA Qty Nos.

EAMAZ0440

Siemens Contactor, 3TF30 10-0A-M0 415 V for Condenser fan

2

4

415 V,9 A, 220 VAC Coil, 1 NO

EAMAZ0450

Coil for Siemens Contactor, 3TF30,9A, 220 VAC

2

4

AC 50 Hz

EAMAZ0607

SFU Switch 250 Amp. 3 pole, 80KA, DIN Fuse

1

2

Siemens 3KL8321-3UJ00

EAMAZ0608

Fuse link for 250 Amp. SFU

1

2

EATCZ0010

Star Delta Timer Siemens 3RP15 76-1NP30

1

2

24 VAC, 3-60 Seconds, 1 No. Inst. & 1 No. Delayed

EAMAZ0599

Siemens Contactor, 3TF51 02-0A-M0, 415 VAC

2

4

415 V,140 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0600

Coil for Siemens Contactor, 3TF51 02-0A-M0, 220 V AC

2

4

AC 50 Hz

EAMAZ0500

Siemens Contactor, 3TF47 72-0A-M0, 220V Coil

1

2

415 V, 70A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0510

Coil for Siemens Contactor, 3TF47 72-0A-M0, 220 VAC

1

2

AC 50 Hz

EAMAZ0525

SP/PR Minilec Make, VSP D1

1

2

230 V

EASHZ0060

4 Position Selector Switch - Salzer 61198 ON/OFF

1

1

5 A, Rocker Type, SPST

EAMAZ0205

MCB - 4A, 2 Pole,

1

1

Schneider C60H2P4AC

EAMAZ0316

MCB - 16A, 3 Pole, 415V, 1 0KA, for Fan

2

4

Schneider C60H3P16AC

EAMAZ0530

MCB - 2A, 1 Pole, 415V, 10KA, for Oil Cooler Fan

1

1

Schneider C60H1P2AC

EATDZ0020

Control Transformer, Kavita Make

1

1

0-230V primary 24V secondary, 40VA

Samcon CT-300

415V, 10KA, for Controller


Specification

Micro Control Panel Spares EATFZ0050

Current Sensor (Samcon) 0 to 300 amps.

1

2

EAMAZ0550

INT 69 module

1

2

EBMCI0002

PCO1000CM0 pCO1 - Medium version, 1 MB Flash memory

1

1

EBMCI0009

Input expansion board, Carel PCOE00TLN0

-

1

EBMCI0004

PCO1CON0M0 Removable connector kit for pCO1 - Screw version for pCO1 Medium 1 MB Flash memory

1

1

PCO100CLK0 pCOC options - Clock card

1

1

PGD0000F01

1

1

1

1

EBMCI0003

PGD0 terminal for built-in assembly

24 V AC, I/P, R/O

LCD, 120x32 pixels, without external frame

-

PGD000FR11 PGD0 terminal for built-in assembly - Dark grey frame and silver glass for PGD0, neutral

-

S90CONN000 Telephone-type connection cable, 1.5 m long, with telephone connectors

1

1

EBMCI0100

NTC015WP00 WP type NTC probes

4

6

IP68, 1.5m cable, -50T105°C

EBMCI0080

SPKT00B1C0 Pr Transducer

2

4

0-44.8bar

EBMCI0090

SPKC002300 Cable 2m for pr sensor

2

4

91


Spares for LCWX1-115 D i B / LCWX2-225 D i B Item Baan Code

Description

LCWX1-115DiB Qty Nos.


Specification


BSC-105A (RC16) Screw Compressor for R 22

1

2

VI 3.0

3105-1143A

Oil Filter

1

2

Φ56*200

3105-1146A


1

2

Teflon 1.5t

3101-1148A-3


1

2

REINZ-AFM 34, 1.5t

3101-1051B

Oil Heater (220V)

1

2

220V, 150W

EASCZ0010


3

6

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

6

2743K0R30-4344 SDH12223DS

3101-1003A


3

6

NOK,1515SPS

4804-01

Oil Sight Glass (O-Ring Included)

1

2

ALCO

3105-1024C

Suction Filter

1

2

Φ110*103L

3105-1004A-3

Gasket for 4" Flange

1

2

REINZ-AFM 34, 1.5t

4405-56

Oil Level Switch

1

2

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 Liters

36 Liters

Controls & Accessories spares RDEAI0070

Sporlan Expansion Valve VVE-100

1

2

EASBI0170


Solenoid Valve

-

-

EASBI0175

Sporlan SV B14 S2 for Economiser Coil

Solenoid Valve

-

-

EASBI0140

Sporlan SV B10 S2 Solenoid Valve for Liq. Inj.

1

2

EASBI0145

Sporlan SV B10 S2 Solenoid Valve Coil for Liquid injection

1

2

RDEAI0120

Danfoss Expansion Valve TDEX-11 for Economiser

-

-

FEDBI0140

CTG Dehydrator (Core) (L Type Strainer)

3

6

SAMAI0010

Indicator Moisture

1

2

1-5/8"

EASBZ0040


1

2

SANLAN 1/4" SAE Flare, 15/240/50 MKC-2 Coil

VAAAZ7090

Danfoss Expansion Valve TDEX-7.5 for Liquid Injection

1

2

VAAAZ2010

Valve Angle 1/4 “

8

12

Electrical spares EATCZ0010


1

2

24 VAC, 3-60 Seconds, 1 NO Inst. & 1 NO Delayed

EAMAZ0594

SFU switch 200 Amp, 3 pole, 80KA

1

2


EAMAZ0596

Fuse Link for 200 Amp SFU

1

2

EAMAZ0591


2

4

415 V,110 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0598

Coil for Contactor, 3TF50, 110A ,220 V

2

4

AC 50 Hz

92

USER'S MANUAL

Item Baan Code

Description


EAMAZ0500

Siemens Contactor, 3TF47 72-0A-M0, 220 VAC Coil

1

2

415 V,70 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0510


1

2

AC 50 Hz

EAMAZ0525


1

2

230 V

EASHZ0060

4 Positionn Selector Switch-Salzer 61198 ON/OFF

1

1


EAMAZ0205

MCB - 4A, 2 Pole, 415V, 10KA,

1

1

Schneider C60H2P4AC

EATDZ0020


1

1


Samcon CT-300

for Controller


Specification

Micro Control Panel spares EATFZ0050


1

2

EAMAZ0550

INT 69 module

1

2

EBMCI0002


1

1

EBMCI0009


-

1

EBMCI0004

PCO1CON0M0 Removable connector kit for pCO1 - Screw version for pCO1 Medium

1

1


1

1

EBMCI0003

PGD0000F01 PGD0 terminal for built-in assembly

1

1

-


1

1

-


1

1


3

4

IP68, 1.5 m cable, -50T105 °C 0-44.8bar

-

EBMCI0100 EBMCI0080


2

4

EBMCI0090


2

4

24 V AC, I/P, R/O


93


Spares for LCAX1-102 D i A / LCAX2-204 D i A Item Baan Code

Description



Specification



1

2

VI 3.0

3105-1143A

Oil Filter

1

2

Φ56*200

3105-1146A


1

2

Teflon 1.5t

3101-1148A-3


1

2

REINZ-AFM 34, 1.5t

3101-1051B

Oil Heater (220V)

1

2

220V, 150W

EASCZ0010


3

6

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

6

2743K0R30-4344 SDH12223DS

3101-1003A


3

6

NOK,1515SPS

4804-01


1

2

ALCO

3105-1024C

Suction Filter

1

2

Φ110*103L

3105-1004A-3


1

2

REINZ-AFM 34, 1.5t

4405-56

Oil Level Switch

1

2

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 Liters

36 Liters



1

2

EASBI0170


Solenoid Valve

1

2

EASBI0175

Sporlan SV B14 S2 for Economiser Coil

Solenoid Valve

1

2

EASBI0140


1

2

EASBI0145

Sporlan SV B10 S2 Solenoid Valve Coil for Liquid injection

1

2

RDEAI0120


1

2

FEDBI0140


3

6

SAMAI0010

Indicator Moisture

1

2

1-5/8"

EASBZ0040


1

2


VAAAZ7090


1

2

VAAAZ2010

Valve Angle 1/4 “

8

12

FAPAZ7020

Bird Wing Fan

6

12

36" Dia. 5 blades

Electrical spares FAPAZ7018

Motor for condenser

6

12

1.2 KW, 2.6 A, 700 RPM, 400V/ 3Ph/ 50 Hz

MBSAZ1800


1

2

1 Ph, 230 V, 90 W, 1350 RPM, 450 mm dia., VBM, FA 23/4514/K5/F

EAMAZ0440

Siemens Contactor, 3TF31 10-0A-M0 415VAC

2

4

415 V,12 A, 220 VAC Coil, 1 NO

94

USER'S MANUAL

Item Baan Code

Description


EAMAZ0450

Coil for Siemens Contactor, 3TF31,12A, 220 VAC

2

4

AC 50 Hz

EATCZ0010


1

2


EAMAZ0594


1

2


EAMAZ0596


1

2

EAMAZ0599

Siemens Contactor, 3TF51 02-0A-M0

2

4

415 V,140 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0600

Coil for Contactor, 3TF51,140A

2

4

AC 50 Hz

EAMAZ0591


1

2

415 V,110 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0598


1

2

AC 50 Hz

EAMAZ0525


1

2

230 V

EASHZ0060

4 Position Selector Switch-Salzer 61198 ON/OFF

1

1


EAMAZ0205

MCB - 4A, 2 Pole, 415V, 10KA,

1

1

Schneider C60H2P4AC

EAMAZ0316

MCB - 16A, 3 Pole, 415V, 10KA, for Fan

2

4


EAMAZ0316


1

2

Schneider C60H1P2A

EATDZ0020


1

1


Samcon CT-300

415 VAC

for Controller

LCAX2-204DiA Specification Qty Nos.



1

2

EAMAZ0550

INT 69 module

1

2

EBMCI0002


1

1

EBMCI0009


-

1

EBMCI0004


1

1


1

1

EBMCI0003


1

1

-


1

1

-


1

1

EBMCI0100


4

6

IP68, 1.5 m cable, -50T105 °C

EBMCI0080


2

4

0-44.8bar

EBMCI0090


2

4

-

24 V AC, I/P, R/O


95


Spares for LCWX1-135 D i B Item BaaN Code

Description

LCWX1-135DiB QTY, Nos.

Specification


BSC-130W (RC17) Screw Compressor for R 22

1

VI 3.0

3105-1143A

Oil Filter

1

Φ 56*200

3105-1146A


1

Teflon 1.5t

3101-1148A-3


1

REINZ-AFM 34, 1.5t

3101-1051B

Oil Heater (220V)

1

220V, 150W

EASCZ0010


3

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

2743K0R30-4344 SDH12223DS

3101-1003A


3

NOK,1515SPS

4804-01


1

ALCO

3105-1024C

Suction Filter

1

Φ 110*103L

3105-1004A-3


1

REINZ-AFM 34, 1.5t

4405-56

Oil Level Switch

1

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 Liters



1

EASBI0140

Sporlan SV B10 S2 Solenoid Valve for Liquid Injection

1

EASBI0145

Sporlan SV B10 S2 Solenoid Valve Coil for Liquid Injection

1

FEDBI0140


3

SAMAI0010

Indicator Moisture

1

1-5/8"

EASBZ0040


1


VAAAZ7090


1

VAAAZ2010

Valve Angle 1/4 “

8

Electrical spares EATCZ0010 Star Delta Timer Siemens 3RP15 76-1NP30

24 VAC, 3-60 Seconds, 1 NO. Inst. & 1 NO Delayed Siemens 3KL8311-3UJ00

-


1

-


1

Siemens Contactor, 3TF50 02-0A-M0,

2

EAMAZ0591 415 VAC

96

1

415 V,110 A, 220 VAC Coil, 2 NO, 2NC

USER'S MANUAL

Item BaaN Code

Description

LCWX1-135DiB QTY, Nos.

Specification

EAMAZ0598


2

AC 50 Hz

EAMAZ0500 220 VAC Coil

Siemens Contactor, 3TF47 72-0A-M0,

1

415 V,70A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0510


1

AC 50 Hz

EAMAZ0525


1

230 V

EASHZ0060

4 Positionn Selector Switch - Salzer 61198 ON/OFF

1


EAMAZ0205

MCB - 4A, 2 Pole, 415V, 10KA, for Controller

1

Schneider C60H2P4AC

EATDZ0020


1


Samcon CT-300



1

EAMAZ0550

INT 69 module

1

EBMCI0002


1

EBMCI0004


1

-

PCO100CLK0

1

EBMCI0003

PGD0000F01 assembly

pCOC options - Clock card PGD0 terminal for built-in

1

24 VAC, I/P, R/O


-


1

-


1

EBMCI0100

NTC015WP00

3

IP68, 1.5 m cable, -50T105 °C

EBMCI0080


2

0-44.8bar

EBMCI0090


2

WP type NTC probes

97


Spares for LCWX1-160 D i B / LCWX2-315 D i B Item Baan Code

Description Compressor



Specification

spares

CDSAI0090


1

2

Vi - 3.0

3105-1143A

Oil Filter

1

2

3105-1146A


1

2

Teflon 1.5t

3101-1051B

Oil Heater (220V)

1

2

220V,150W

3101-1006A-3

Gasket (For Motor Cable Cover Plate)

1

2

REINZ-AFM 34, 1.5t

EASCZ0010


3

6

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

6

2743K0R30-4344 SDH12223DS

3101-1003A


3

6

NOK,1515SPS

4804-01

Oil Sight Glass (O-Ring included)

1

2

ALCO

3105-1004A-3


1

2

REINZ-AFM 34, 1.5t

4405-56

Oil Level Switch

1

2

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 liters

36 liters

Controls and Accessories Spares RDEAI0060


2

4

EASBI0140

Sporlan SV B10 S2

Solenoid Valve for Liq. Inj.

1

2

EASBI0145

Sporlan SV B10 S2

Solenoid Valve Coil

1

2

FEDBI0140

CTG Dehydrator (Core)

3

6

EASBZ0040


1

2

VAAAZ7090

Danfoss Expansion Valve TDEX-7.5 for Liq. Inj.

1

2

VAAAZ2010

Valve Angle 1/4 “

8

16

1

2

24 VAC, 3-60 Seconds, 1 NO Inst. & 1 NO Delayed Siemens 3KL8321-3UJ00


Electrical Spares EATCZ0010


EAMAZ0607

SFU Switch 250 Amp. 3 pole, 80KA

1

2

EAMAZ0608


1

2

EAMAZ0603

Siemens Contactor 3TF53 02-0A-M0, 415 VAC

-

-

415 V,205 A, 220 VAC Coil, 2NO, 2 NC

EAMAZ0599


2

4

415 V,140 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0600


2

4

AC 50 Hz

EAMAZ0599

Siemens Contactor, 3TF49 22-0A-P0, 415 VAC

1

2

415 V,85 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0600

Coil for Siemens Contactor, 3TF49 22-0A-P0, 220 VAC

1

2

AC 50 Hz

98

USER'S MANUAL

Item Baan Code

Description



EAMAZ0525

Specification


1

2

230 V

EASHZ0060


1

1


EAMAZ0205


1

1

Schneider C60H2P4AC

EATDZ0020


1

1


Samcon CT-300


Current Sensor (Samcon) 0 to 300 Amps.

1

2

EAMAZ0550

INT 69 module

1

2

EBMCI0002


1

1

EBMCI0009


-

1

EBMCI0004


1

1


1

1


1

1

-


1

1

-


1

1

EBMCI0100


3

6

IP68, 1.5 m cable, -50T105 °C

EBMCI0080


2

4

0-44.8bar

EBMCI0090


2

4

EBMCI0003

24 V AC, I/P, R/O


99


Spares for LCAX1-145 D i A/ LCAX2-290 D i A Item Baan Code

Description Compressor



Specification

spares

CDSAI0090


1

2

Vi - 3.0

3105-1143A

Oil Filter

1

2

3105-1146A


1

2

Teflon 1.5t

3101-1051B

Oil Heater (220V)

1

2

220V,150W

3101-1006A-3


1

2

REINZ-AFM 34, 1.5t

EASCZ0010


3

6

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

6

2743K0R30-4344 SDH12223DS

3101-1003A


3

6

NOK,1515SPS

4804-01


1

2

ALCO

3105-1004A-3


1

2

REINZ-AFM 34, 1.5t

4405-56

Oil Level Switch

1

2

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 liters

36 liters



2

4

EASBI0140

Sporlan SV B10 S2


1

2

EASBI0145

Sporlan SV B10 S2

Solenoid Valve Coil

1

2

EASBI0190


Solenoid Valve

1

2

EASBI0195

Sporlan SV B19 S2

Solenoid Valve Coil

1

2

FEDBI0140


4

8

RDEAI0125

Sporlan Expansion Valve TDEX-19

1

2

EASBZ0040


1

2

VAAAZ7090

Danfoss Expansion Valve TDEX-7.5 for Liq. Inj.

1

2

VAAAZ2010

Valve Angle 1/4 “

8

16

FAPAZ7020

Bird Wing Fan

8

16

SATAZ0140

Anti freeze thermostat Sub-Zero 7510

-

2


36" Dia. 5 blades


Motor for Condenser

8

16

1.2 KW, 2.6 A, 700 RPM, 400V/ 3 Ph/ 50 Hz

MBSAZ1800


1

2

1 Ph, 230 V, 90 W, 1350 RPM VBM, FA 23/4514/K5/F

EAMAZ0605

Siemens Contactor, 3TF32 00-0A-M0 415 VAC

2

4

415 V,16 A, 220 VAC Coil

EAMAZ0606

Coil for Contactor 3TF32/ 16 A, 220 VAC

2

4

AC 50 Hz

EATCZ0010


1

2


EAMAZ0595

SFU switch 400 Amp.3 pole, 80KA

1

2


EAMAZ0597


1

2

100

USER'S MANUAL

Item Baan Code

Description



EAMAZ0603

Specification


2

4

415 V,205 A, 220 VAC Coil, 2 NO, 2 NC

EAMAZ0604

Coil for Contactor, 3TF53/205A, 220 V

2

4

AC 50 Hz

EAMAZ0591


1

2

415 V, 110 A, 220 VAC Coil, 2 NO, 2 NC

EAMAZ0598


1

2

AC 50 Hz

EAMAZ0525


1

2

230 V

EASHZ0060


1

1


EAMAZ0205


1

1

Schneider C60H2P4AC

EAMAZ0316


2

4


EAMAZ0316


1

2

Schneider C60H1P2AC

EATDZ0020


1

1


Samcon CT-300



1

2

EAMAZ0550

INT 69 module

1

2

EBMCI0002


1

1

EBMCI0009


-

1

EBMCI0004


1

1


1

1


1

1

-


1

1

-


1

1


4

6

IP68, 1.5 m cable, -50T105 °C 0-44.8bar

EBMCI0003

EBMCI0100 EBMCI0080


2

4

EBMCI0090


2

4

24 V AC, I/P, R/O


101


Spares for LCAX2-177 D i A Item BaaN Code

Description

LCAX2-177 D i A QTY, Nos.

Specification



1

VI- 3.0

3105-1143A

Oil Filter

1

Φ56*200

3105-1146A


1

Teflon 1.5t

3101-1148A-3


1

REINZ-AFM 34, 1.5t

3101-1051B

Oil Heater (220V)

1

220V, 150W

EASCZ0010


3

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

2743K0R30-4344 SDH12223DS

3101-1003A


3

NOK,1515SPS

4804-01


1

ALCO

3105-1024C

Suction Filter

1

Φ110*103L

3105-1004A-3


1

REINZ-AFM 34, 1.5t

4405-56

Oil Level Switch

1

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 Liters

CDSAI0075


1

3101-1143A

Oil Filter

1

Φ40*200

3101-1146A


1

Teflon 1.5t

3101-1147A-3


1

REINZ-AFM 34, 1.5t

3101-1051B

Oil Heater (220V)

1

220V, 150W

EASCZ0010


3

220V, SANLAN SMG 1

4401-30


3

2743K0R30-4344 SDH12223DS

3101-1003A


3

NOK,1515SPS

VI- 3.0

3103-2104B

Oil sight glass (O’ ring included)

1

Aluminium

3131-1004A-3

3" Gasket

1

REINZ-AFM 34, 1.5t

3103-1024C

Suction Filter

1

Φ110*103L, 60 Mesh

4405-56

Oil Level Switch

1

RFS-8-2, 1200mm

Blue Star ACS Oil

16 Litres

CDSPI0710



1

RDEAI0070


1

EASBI0140

Sporlan SV B10 S2 for Liquid Injection

Solenoid Valve 2

EASBI0145

Sporlan SV B10 S2

Solenoid Valve Coil

EASBI0170


Solenoid Valve

EASBI0175

Sporlan SV B14 S2

Solenoid Vavle Coil

FEDBI0140

CTG Dehydrator (core)

5

RDEAI0120


2

VAAAZ2010

Valve Angle 1/4“

16

VAAAZ2106

Sporlan Expansion Valve BBIVE-4 for Liquid Injection

1

VAAAZ7090


1

EASBZ0040


2


Bird Wing Fan

12

36" Dia. 5 blades

12

1.2 KW, 2.6 A, 700 RPM, 400 V/ 3 Ph/ 50 Hz

FAPAZ7020

2 2 2


102

Motor for Condenser

USER'S MANUAL

Item BaaN Code

Description

LCAX2-177 D i A QTY, Nos.

Specification

MBSAZ1800


2

1 Ph. 230 V, 90 W, 1350 RPM, 450mm dia., VBM, FA 23/4514/K5/F

EAMAZ0605

Siemens Contactor, 3TF32 00-0A-M0 415 VAC for condenser fan

2

415 V,16 A, 220 VAC Coil

EAMAZ0606

Coil for Contactor 3TF32,16A, 220 VAC

2

AC 50 Hz

EAMAZ0440

Siemens Contactor, 3TF30 10-0A-M0 415 VAC for Condenser fan

2

415 V,9 A, 220 VAC Coil, 1 NO

EAMAZ0450

Coil for Siemens Contactor, 3TF30,9A, 220 V

2

AC 50 Hz

EAMAZ0607


1


EAMAZ0608


1

EAMAZ0594


1

EAMAZ0596


1

EATCZ0010


2


EAMAZ0599

Siemens Contactor, 3TF51 02-0A-M0, 415 V

4

415 V,140 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0600

Coil for Siemens Contactor, 3TF51 02-0A-M0, 220 V

4

AC 50 Hz

EAMAZ0500


1

415 V,70 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0510


1

AC 50 Hz

EAMAZ0591


1

415 V,110 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0598


1

AC 50 Hz

EAMAZ0525


2

230 V

EASHZ0060


1


EAMAZ0205


1

Schneider C60H2P4AC

EAMAZ0316


4


EAMAZ0530


2

Schneider C60H1P2AC

EATDZ0020


1

0-230V primary 24V secondary, 40VA Samcon CT-300




2

EAMAZ0550

INT 69 module

2

EBMCI0002


1

EBMCI0009


1

EBMCI0004


1

EBMCI0003

PCO100CLK0 PGD0000F01 assembly

pCOC options - Clock card PGD0 terminal for built-in

24V AC, I/P, R/O

1 1

-


1

-

S90CONN000 Telephone-type connection cable, 1.5m long, with telephone connectors

1


EBMCI0100


6

IP68, 1.5m cable, -50T105 °C

EBMCI0080


4

0-44.8bar

EBMCI0090


4

103


Spares for LCWX2-270 D i B, LCAX2-247 D i A Item Baan Code

Description



Specification



1

1

Vi - 3.0

3105-1143A

Oil Filter

1

1

Φ 56*200

3105-1146A


1

1

Teflon 1.5t

3101-1148A-3


1

1

REINZ-AFM 34, 1.5t

3101-1051B

Oil Heater (220V)

1

1

220V, 150W

EASCZ0010


3

3

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

3

2743K0R30-4344 SDH12223DS

3101-1003A


3

3

NOK,1515SPS

4804-01


1

1

ALCO

3105-1024C

Suction Filter

1

1

Φ 110*103L

3105-1004A-3


1

1

REINZ-AFM 34, 1.5t

4405-56

Oil Level Switch

1

1

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 Liters

18 Liters

CDSAI0090


1

1

3105-1143A

Oil Filter

1

1

3105-1146A


1

1

Teflon 1.5t

3101-1051B

Oil Heater (220V)

1

1

220V,150W

3101-1006A-3


1

1

REINZ-AFM 34, 1.5t

EASCZ0010


3

3

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

3

2743K0R30-4344 SDH12223DS

3101-1003A


3

3

NOK,1515SPS

4804-01


1

1

ALCO

3105-1004A-3


1

1

REINZ-AFM 34, 1.5t

4405-56

Oil Level Switch

1

1

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 liters

18 liters

Vi - 3.0



1

1

RDEAI0060


2

2

EASBI0170

Sporlan SV B14 Solenoid Valve for Economiser

-

1

EASBI0175

Sporlan SV B14 Solenoid Valve for Economiser Coil

-

1

EASBI0140

Sporlan SV B10 S2

EASBI0145

Sporlan SV B10 S2 Solenoid Valve Coil for Liquid Injection

RDEAI0120

Sporlan Expansion Valve TDEX-11 for Economiser

-

1

FEDBI0140


7

7

Solenoid Valve

2

2

2

2

SAMAI0010

Indicator Moisture

2

2

1-5/8"

EASBZ0040


2

2

SANLAN 1/4" SAE Flare, 15/ 240/50 MKC-2 Coil

VAAAZ7090

Danfoss Expansion Valve TDEX-7.5 for Liq.Inj.

2

2

VAAAZ2010

Valve Angle 1/4 “

12

12

FAPAZ7020

Bird Wing Fan

-

14

EASBI0190

Sporlan SV B19S2 Solenoid Valve for Economiser

-

1

EASBI0195

Sporlan SV B19S2 Solenoid Valve Coil

-

1

RDEAI0125

Sporlan Expansion Valve TDEX-19 for economiser

-

1

SATAZ0140


-

2

36" Dia. 5 blades

Electrical spares FAPAZ7018

Motor for Condenser

-

14

1.2 KW, 2.6 A, 700 RPM, 400V/ 3 Ph/ 50 Hz

MBSAZ1800


-

2

1 Ph., 230 V, 90 W, 1350 RPM, 450 mm dia., VBM, FA 23/4514/K5/F

104

USER'S MANUAL

Item Baan Code

Description



-

2

EAMAZ0605

Siemens Contactor, 3TF32 00-0A-M0 415V for condenser fan

EAMAZ0606


-

2

AC 50 Hz

EAMAZ0440

Siemens Contactor, 3TF31 10-0A-M0 415VAC for condenser fan

-

2

415 V,12 A, 220 VAC Coil, 1NO

EAMAZ0450

Coil for Siemens Contactor,3TF31,12A, 220 V

-

2

AC 50 Hz

EATCZ0010


2

2


EAMAZ0594


-

1


EAMAZ0596


-

1

EAMAZ0595


-

1

EAMAZ0597


-

1

-


1

-

-


1

-

Specification 415 V,16 A, 220 VAC Coil

Siemens 3KL8341-3UJ00 Siemens 3KL8311-3UJ00

EAMAZ0607


1

-

EAMAZ0608


1

-


EAMAZ0603


-

2

415 V,205 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0604


-

2

AC 50 Hz

EAMAZ0599


2

2

415 V,140 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0600

Coil for Contactor, 3TF51,140A

2

2

AC 50 Hz

EAMAZ0591


2

2

415 V,110 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0598


2

2

AC 50 Hz

EAMAZ0500

Siemens Contactor, 3TF47 72-0A-M0, 220V Coil

1

-

415 V,70 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0510

Coil for Siemens Contactor, 3TF47 72-0A-M0, 220V

1

-

AC 50 Hz

EAMAZ0599

Siemens Contactor, 3TF49 22-0A-P0, 415 VAC

1

-

415 V,85 A, 220 VAC Coil, 2NO, 2NC

EAMAZ0600

Coil for Siemens Contactor, 3TF49 22-0A-P0, 220V

1

-

AC 50 Hz

EAMAZ0525


2

2

230 V

EASHZ0060


1

1


EAMAZ0205


1

1

Schneider C60H2P4AC

EAMAZ0316


-

4


EAMAZ0316


-

2

Schneider C60H1P2AC

EATDZ0020


1

1


EATFZ0050


2

2

Samcon CT-300

EAMAZ0550

INT 69 module

2

2

EBMCI0002


1

1

Micro Control Panel spares

EBMCI0009


1

1

EBMCI0004


1

1

-

1

1


1

1

-

PGD000FR11 PGD0 terminal for built-in assembly -Dark grey frame and silver glass for PGD0, neutral

1

1

-


1

1

EBMCI0100

NTC015WP00

6

6

IP68, 1.5 m cable, -50T105 °C

EBMCI0080


4

4

0-44.8bar

EBMCI0090


4

4

EBMCI0003

PCO100CLK0

pCOC options - Clock card

24C AC, I/P, R/O

WP type NTC probes


105


Spares for LCWX1-175 D i B & LCWX2-345 D i B Item Baan Code

Description



CDSAI0092

Specification

BSC-160A (RC-19) Compressor

1

2

Vi - 3.0

3107-1005A-3

3'’ Gasket for Discharge Flange

1

2

REINZ-AFM 34, 1.5t

3107-1143A

Oil Filter

1

2

3107-1146A


1

2

Teflon 1.5t

EASCZ0010


3

6

220V, SANLAN SMG 1

4401-30


3

6

2743K0R30-4344 SDH12223DS

3101-1003A


3

6

NOK,1515SPS

4804-01


2

4

ALCO

3107-1024C

Suction Filter

1

2

60mesh

3107-1004A-3

Gasket for Suction Filter Flange

1

2

REINZ-AFM 34, 1.5t

3101-1052C

Oil Heater

1

2

Φ12.7,220V*300 W

4405-56

Oil Level Switch

1

2

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 liters

36 liters

Controls & Accessories Spares RDEAI0060


2

4

EASBI0140

Sporlan SV B10 S2


1

2

EASBI0145

Sporlan SV B10 S2

Solenoid Valve Coil

1

2

EASBI0190


Solenoid Valve

-

-

FEDBI0140


3

6

VAAAZ2010

Valve Angle 1/4

8

12

RDEAI0120

Danfoss Expansion Valve TDEX-11 for liq. Inj.

1

2

EASBZ0040


1

2


Electrical Spares EATCZ0010


1

2


EAMAZ0594


1

2


EAMAZ0596


1

2

EAMAZ0591


1

2

415 V,110 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0598

Coil for Contactor, 3TF50, 110A, 220 V

1

2

AC 50 Hz

EAMAZ0601

Siemens Contactor, 3TF52-02-0A-M0 415 V

2

4

415 V,170 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0602

Coil for Contactor, 3TF52 170A 220 VAC

2

4

AC 50 Hz

EAMAZ0525


1

2

230 V

106

USER'S MANUAL

EASHZ0060


1

1


EATDZ0020


1

1


EAMAZ0205

MCB - 4A, 2 Pole, 415V, 10KA,

1

1

Schneider C60H2P4AC

Samcon CT-300

for Controller



1

2

EAMAZ0550

INT 69 module

1

2

EBMCI0002


1

1

EBMCI0009


-

1

EBMCI0004


1

1


1

1

EBMCI0003


1

1

-


1

1

-


1

1


3

6

IP68, 1.5 m cable, -50T105 °C

EBMCI0080


2

4

0-44.8bar

EBMCI0090


2

4

-

EBMCI0100

24 V AC, I/P, R/O


107


Spares for LCAX2-320 D i A Item BaaN Code

Description

LCAX2-320DiA QTY, Nos.

Specification

CDSAI0092


2

Vi - 3.0

3107-1005A-3


2

REINZ-AFM 34, 1.5t

3107-1143A

Oil Filter

2

3107-1146A


2

Teflon 1.5t

EASCZ0010


6

220V, SANLAN SMG 1

4401-30


6

2743K0R30-4344 SDH12223DS

3101-1003A


6

NOK,1515SPS

4804-01


4

ALCO

3107-1024C

Suction Filter

2

60mesh

3107-1004A-3


2

REINZ-AFM 34, 1.5t

3101-1052C

Oil Heater

2

Φ12.7,220V*300W

4405-56

Oil Level Switch

2

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

36 liters

Controls & Accessories Spares RDEAI0060


4

EASBI0140


2

EASBI0145

Sporlan SV B10 S2 Solenoid Valve Coil

2

EASBI0190

Sporlan SV B19 S2 Solenoid Valve for Economiser

2

EASBI0195


2

FEDBI0140


8

RDEAI0125

Sporlan Expansion Valve MVE-21 for economiser

2

VAAAZ2010

Valve Angle 1/4

12

RDEAI0120


2

EASBZ0040


2

FAPAZ7020

Bird Wing Fan

16

SATAZ0140


2


Electrical Spares MBSAZ2080

Motor for Condenser

16

1.5 kW, 3.5 A, 860 RPM, 400V/ 3 Ph/ 50 Hz

MBSAZ1800


2

1 ph, 230 V, 90 W, 1350 RPM, 450 mm dia., VBM, FA 23/514/K5/F

EAMAZ0605

Siemens Contactor, 3TF32 00-0A-M0 415V for condenser fan

4

415 V,16 A, 220 VAC Coil

EAMAZ0606


4

AC 50 Hz

EATCZ0010


2


EAMAZ0610


-



2

-

108

USER'S MANUAL

Item Baan Code

Description


Specification

-

Siemens Contactor 3TF54 02-0A-M0, 415 V

4

415 V,250 A, 220 VAC Coil, 2NO, 2NC

-

Siemens Coil for Contactor 3TF54, 220 VAC

4

AC 50 Hz

-


2

415 V,140 A, 220 VAC Coil, 2 NO, 2NC

-

Coil for Contactor, 3TF51,140A 220 VAC

2

AC 50 Hz

EAMAZ0525


2

230 V

EASHZ0060


1


EATDZ0020


1


EAMAZ0205


1

Schneider C60H2P4AC

EAMAZ0316


4


EAMAZ0316


2

Schneider C60H1P2AC

Samcon CT-300



2

EAMAZ0550

INT 69 module

2

EBMCI0002


1

EBMCI0009


1

EBMCI0004


1

-

24 V AC, I/P, R/O


1

EBMCI0003


1

-


1

-


1

EBMCI0100


6

IP68, 1.5 m cable, -50T105 °C

EBMCI0080


4

0-44.8bar

EBMCI0090


4


109


Spares for LCWX1-225 D i B & LCAX1-206 D i A Item Baan Code

Description



CDSAI0091

Specification


1

1

Vi - 3.0

3105-1004a-3

4"Gasket for Discharge Flange

1

1

Reinz-Afm 34, 1.5t

3107-1143a

Oil Filter

1

1

3107-1146a


1

1

Teflon 1.5t

3101-1051B

Oil Heater (220V)

1

1

220V,150W

4804-01


1

1

ALCO

3101-1006a-3


1

1

Reinz-Afm 34, 1.5t

EASCZ0010


3

3

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

3

2743K0R30-4344 SDH12223DS

3101-1003a


3

3

Nok,1515sps

3107-1054a

Gasket For Suction Filter

1

1

Φ161.5*1.5t

3107-1024c

Suction Filter

1

1

Φ159*210l

4405-56

Oil Level Switch

1

1

Rfs-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 liters

18 liters

RDEAI0070

Sporlan Expansion Valve - VVE-100

2

2

EASBI0140

Sporlan SV B10 S2


1

1

EASBI0145

Sporlan SV B10 S2

Solenoid Valve Coil

1

1

EASBI0190


Solenoid Valve

-

1

EASBI0195

Sporlan SV B19 S2

Solenoid Valve Coil

-

1

FEDBI0140


4

6

RDEAI0125


1

1

VAAAZ2010

Valve Angle 1/4

6

6

RDEAI0120


1

1

EASBZ0040


-

1

FAPAZ7020

Bird Wing Fan

-

12




Motor for Condenser

-

12

1.2 kW, 2.6 A, 700 RPM, 400V/ 3 Ph./ 50 Hz

MBSAZ1800


-

2

1 phase, 230 V, 90 W, 1350 RPM, 450 mm dia., VBM, FA 23/4514/K5/F

EAMAZ0605

Siemens Contactor, 3TF32 00-0A-M0 415 VAC for condenser fan

-

3

415 V,16 A, 220 VAC Coil

EAMAZ0606

Coil for Contactor 3TF32, 16A, 220 VAC

-

3

AC 50 Hz

EATCZ0010


1

1


EAMAZ0610


-

1


110

USER'S MANUAL

Item Baan Code

Description



EAMAZ0620

Specification


-

1

EAMAZ0595


1

-

EAMAZ0597


1

-

EAMAZ0603


2

-

415 V,205 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0604


2

-

AC 50 Hz

EAMAZ0591


1

-

415 V,110 A, 220 VAC Coil, 2NO, 2NC

EAMAZ0598

Coil for Contactor, 3TF50, 110A, 220 V

1

-

AC 50 Hz

EAMAZ0603

Siemens Contactor 3TF55 02 0A-M0 415 V

-

2

415 V,300 A, 220 VAC Coil, 2NO, 2NC

EAMAZ0604

Coil for Contactor, 3TF55, 300A 220 VAC

-

2

AC 50 Hz

EAMAZ0601


-

1

415 V,170 A, 220 VAC Coil, 2NO, 2NC

EAMAZ0602


-

1

AC 50 Hz

EAMAZ0525


1

1

230 V

EASHZ0060


1

1


EATDZ0020


1

1


EAMAZ0205


1

1

Schneider C60H2P4AC

EAMAZ0316


-

3


EAMAZ0316


-

1

Schneider C60H1P2AC




1

-

Samcon CT-300

EATFZ0060


-

1

Samcon CT-500

EAMAZ0550

INT 69 module

1

1

EBMCI0002


1

1

EBMCI0004


1

1


1

1

EBMCI0003


1

1

-


1

1

-


1

1

EBMCI0100


3

4

IP68, 1.5 m cable, -50T105 °C

EBMCI0080


2

2

0-44.8bar

EBMCI0090


2

2

-


111


Spares for LCWX2-400 DiB, LCAX2-366 D i A Item Baan Code

Description

LCWX2-400 DiB Qty Nos.


CDSAI0092 3107-1005A-3

Specification


1

1

Vi - 3.0


1

1

REINZ-AFM 34, 1.5t

3107-1143A

Oil Filter

1

1

3107-1146A


1

1

Teflon 1.5t

EASCZ0010


3

3

220V, SANLAN SMG 1

4401-30


3

3

2743K0R30-4344 SDH12223DS

3101-1003A


3

3

NOK,1515SPS

4804-01


2

2

ALCO

3107-1024C

Suction Filter

1

1

60mesh

3107-1004A-3


1

1

REINZ-AFM 34, 1.5t

3101-1052C

Oil Heater

1

1

Φ 12.7,220V*300W

4405-56

Oil Level Switch

1

1

RFS-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 liters

18 liters

CDSAI0091


1

1

Vi - 3.0

3105-1004a-3

4"Gasket for Discharge Flange

1

1

Reinz-Afm 34, 1.5t

3107-1143a

Oil Filter

1

1

3107-1146a


1

1

Teflon 1.5t

3101-1051B

Oil Heater (220V)

1

1

220V,150W

4804-01


1

1

ALCO

3101-1006a-3


1

1

Reinz-Afm 34, 1.5t

EASCZ0010


3

3

220V, SANLAN SMG 1

4401-30

Solenoid Valve

3

3

2743K0R30-4344 SDH12223DS

3101-1003a


3

3

Nok,1515sps

3107-1054a

Gasket For Suction Filter

1

1

Φ 161.5*1.5t

3107-1024c

Suction Filter

1

1

Φ 159*210l

4405-56

Oil Level Switch

1

1

Rfs-8-2, 1200mm

CDSPI0710

Blue Star ACS Oil

18 liters

18 liters

RDEAI0060


2

2

RDEAI0070

Sporlan Expansion Valve - VVE-100

2

2

EASBI0140

Sporlan SV B10 S2 Solenoid Valve for Liquid Injection

2

2

EASBI0145


2

2

EASBI0190

Sporlan SV B19 S2 Solenoid Valve for Economiser

-

2

EASBI0195


-

2

EDBI0140


8

10

RDEAI0125


-

2

VAAAZ2010

Valve Angle 1/4

8

12

RDEAI0120


2

2

EASBZ0040

Pilot Sol. Valve (230V) 50 MKC-2 Coil

2

2

FAPAZ7020

Bird Wing Fan

-

20

SATAZ0140


-

2


SANLAN 1/4" SAE Flare, 15/240/

Electrical Spares MBSAZ2080

Motor for Condenser

-

8

1.5 kW, 3.5 A, 860rpm, 400V/ 3 Ph/ 50 Hz

FAPAZ7018`

Motor for Condenser

-

12

1.2 kW, 2.6 A, 700 RPM, 400 V/ 3 Ph/ 50 Hz

MBSAZ1800


-

3

1 phase, 230 V, 90 W, 1350 RPM, 450 mm dia., VBM, FA 23/ 4514/K5/F

112

USER'S MANUAL

Item Baan Code

Description

EAMAZ0605

Siemens Contactor, 3TF32 00-0A-M0 415 V for condenser fan

EAMAZ0606


-

5

AC 50 Hz

EATCZ0010


2

2


EAMAZ0610


-

2



-

1

-

LCWX2-400 DiB Qty Nos.


-

5

Specification 415 V,16 A, 220 VAC Coil

EAMAZ0620


-

1

EAMAZ0595


1

-

EAMAZ0597


1

-

EAMAZ0594


1

-

EAMAZ0596


1

-

-

Siemens Contactor 3TF54 02-0A-M0, 415 V

-

2

-

Siemens Coil for Contactor 3TF54, 220 VAC

-

2

AC 50 Hz

-


-

1

415 V,140 A, 220 VAC Coil, 2 NO, 2NC

-

Siemens 3KL8341-3UJ00 Siemens 3KL8331-3UJ00 415 V,250 A, 220 VAC Coil, 2 NO, 2NC

Coil for Contactor, 3TF51,140A 220 VAC

-

1

AC 50 Hz

EAMAZ0603

Siemens Contactor 3TF55 02 0A-M0 415 V

-

2

415 V,300 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0604

Coil for Contactor, 3TF55, 300A 220 VAC

-

2

AC 50 Hz

EAMAZ0601


2

1

415 V,170 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0602


2

1

AC 50 Hz

EAMAZ0591


2

-

415 V,110 A, 220 VAC Coil, 2 NO, 2NC

EAMAZ0598


2

-

AC 50 Hz

EAMAZ0603


2

-

415 V,205 A, 220 VAC Coil, 2NO, 2NC

EAMAZ0604

Coil for Contactor, 3TF53/205A ,220 V

2

-

AC 50 Hz

EAMAZ0525


2

2

230 V

EASHZ0060


1

1


EATDZ0020


1

1


EAMAZ0205

MCB - 4A, 2 Pole, 415V, 10KA, for controller

1

1

Schneider C60H2P4AC

EAMAZ0316


-

5


EAMAZ0316


-

2

Schneider C60H1P2AC

EATFZ0050


2

1

Samcon CT-300

EATFZ0060


-

1

Samcon CT-500

EAMAZ0550

INT 69 module

2

2

EBMCI0002


1

1

EBMCI0009


1

1

EBMCI0004


1

1

PCO100CLK0

Micro Control Panel Spares

-

1

1

PGD0000F01 PGD0 terminal for built-in assembly external frame

1

1

-

PGD000FR11 PGD0 terminal for built-in assembly Dark grey frame and silver glass for PGD0, neutral

1

1

-


1

1

EBMCI0100


6

6

IP68, 1.5 m cable, -50T105 °C

EBMCI0080


4

4

0-44.8bar

EBMCI0090


4

4

EBMCI0003

pCOC options - Clock card

24 CAC, I/P, R/O

LCD, 120x32 pixels, without

113


Field Feed Back Form The field feed back card as per the format below shall be send to factory on receipt of the Chiller Field Feed Back Card on Receipt of Chiller at Site Return To : Manufacturing Unit - Thane PRODUCT

:

CHILLER MODEL

:

SR. NO.

:

CUSTOMER NAME

:

DATE

: Observation

Quality of Packing

LOCATION :

Comments

Details Of Defects

Ok / Damaged

Receipt of Documents - Packing List

Yes / No

- Test Report

Yes / No

- Truck No. Condition of Parts : - Frame Work

Ok /

- Condenser coils

Ok /

- Fan Mountings

Ok /

- Springs

Ok /

- Compressor

Ok /

- Condenser

Ok /

- Cooler

Ok /

- Electrical Panel

Ok /

- Oil Cooler

Ok /

- Economiser

Ok /

- Refrigerant Piping

Ok /

- Idle Pressure

Ok /

REMARKS :

Checked By For Factory Use :

114

-

Date of Receipt :

-

Comments :

- Action By :

USER'S MANUAL

The field feedback card as per the format below shall be sent to factory after Commisioning of the Chiller

Field Feedback Card - Commissioning of Chiller at Site Product :

Air Cooled / Water Cooled Screw Chiller

Chiller Model : Sr. No. : Customer Name :

Location :

Engineer’s Name : Observation

Comments

Remarks

Installation/Precommissioning Checks : - Unit Installed and levelled - Condenser water connection terminated properly with isolation required - Chilled water connection terminated properly with isolation required - Electrical connection with Earthing terminated properly - Condenser water and Chilled water system properly flushed - Water Quality checked - Insulation Resistance of Cables checked - Condenser water and Chilled water Pump commissioned Water flow adjusted to the design flow by checking pressure drop Water flow switches connected with electrical panel Check up Voltage Commissoned the Chiller Noise Level Vibration Check Current Testing done at site Performance data as per format - Commissioning Date

Ok /

Ok / Ok / Ok / Ok / Ok / Ok / Ok / Ok Ok Ok Ok Ok Ok Ok Ok

/ / / / / / / /

Starting 400V + 10% Running 400V + 10% Long term running 400V ± 5%

- Commissioning By Remarks :

Note : Warranty will be valid only after receipt of this card at the factory For Factory Use : - Date Of Receipt : - Action By : - Comments :

115


Commissioning and Handing Over Hand over the Chiller to the Customer as per the format below and establish Warranty COMMISSIONING & HANDING OVER REPORT Our Ref:

BLUE STAR LIMITED

Date:

Cust. Ref. PURCHASE ORDER

Date: Date:

Equipment :

Blue Star make Air / Water Cooled Screw Chiller

Model: Sl.Nos. Customer Name & Address

Equipment location : Call made by

COMMISSIONING

Service rendered Supplied,Installed,Tested and Commissioned Blue Star make Air Cooled Screw Chillers / Water Cooled Screw Chillers and they are put into regular operation. The Model No. & Serial Nos. of the units are given below : CHILLER MODEL : SERIAL NO. OF MACHINE NO.1

:

SERIAL NO. OF MACHINE NO.2

:

The chillers are handed over to the customer for the beneficial use. Equipment warranty expires on :

Attended by:

Blue Star Ltd.

Signature:

For office use:

The above equpiment has been installed and commissioned to our satisfaction. Other comments (if any).

Date : 5091-10C

116

Customer’s Stamp & Signature

Registered Office : Kasthuri Buildings, Jamshedji Tata Road, Mumbai 400 020

USER'S MANUAL

Water Quality Recommended Water Quality Standards Test items

Chilled Water Quality 7.2 - 8.5

Cooling Tower Water Quality 7.2 - 8.5

Makeup Water Quality 6.0 - 8.0

Max. 80

Less than 200

Max. 50

(CaCo3) ppm

Less than 100

Less than 100

Less than 80

Chloride Ion (ppm)

Less than 50

Less than 200

Less than 50

Total Ion (Fe) ppm

Less than 0.3

Less than 1.0

Less than 0.3

Silica (Sio2) ppm

Less than 30

Less than 50

Less than 30

Ammonium Ion ppm

Less than 0.2

Less than 1.0

Less than 0.2

pH Total hardness (CaCo3) ppm Total Alkalinity

117


Log Report Customer's Name Date: Time

S.No

Description

Units

Voltage R-Y

Volts

Voltage Y-B

Volts

Voltage R-B

Volts

Current - R

Amps.

Current - Y

Amps.

Current - B

Amps.

3

Supply Frequency

Hz

4

Suction Pressure comp.

PSIG

5

Discharge Pressure comp.

PSIG

6

Compressor Current.

Amps.

7

Cooler Entering Water temp.

0

8

Cooler Leaving Water temp.

0

9

Cooler Pressure drop

PSIG

10

Cooler water Flow rate

US GPM

Condenser Entering water temp.

0

12

Condenser Leaving water temp.

0

13

Condenser Pressure drop

PSIG

14

Condenser water Flow rate

US GPM

15

Refri. System temp. - Suction

0

16

Refri. System temp.-Discharge.

0

Refri. System temp. - Liquid

0

1

2

11

17

118

F F

F F

F F F

10.00

12.00

14.00

16.00

18.00

USER'S MANUAL

Warranty Claim Form For Blue Star Air / Water Cooled Screw Chillers A copy of this form is to be filled in case of the Chiller failure, by BSL Engineer) Location (City) ……......…………….

Date ………...…….

Chiller Model No:

Chiller Serial No.

Date of despatch

Date of commissioning

Warranty commencing date

Warranty expiry date

Application in which equipment is used Customer’s Name and Address

Dealer’s Name and Address

Noise at Starting

Noise while running

Starting Problem

Compressor :

Voltage

No No No

Vibration

Yes

Electrical problem

Yes

High Noise

Any mounting bolts loose :

Yes

Yes

No

Yes

No YesNo

Insulation resistance (Megger test)…………….....…….. Ohms

Any vibration in piping

Yes

No

Less cooling in cooler

Yes

No

Checked Water flow rate

Yes

No

Checked Compressor working in full Load

Yes

No

Operating pressure checked

Yes

No

Shortage of refrigerant

Yes

No

Signature & Seal of Customer Date …………….

Signature & Seal of BSL Engineer Date ……………………. (For Factory use only)

Claim settled

Credit advice No. …....................................……

Reasons for rejection

Claim rejected

……………………....................................................................................

Settlement authorised by : ……......………………..

Date …………………………….

119


Warranty Blue Star Screw Chillers carry a warranty for a period of 12 months from the date of commissioning or 15 months from the date of delivery, whichever is earlier, unless stated otherwise in the contract of sales.

Terms of Warranty Blue Star extends a comprehensive warranty on its systems, which entitles the customer to the following 1.

Repair / reconditioning, by BSL / BSL Dealer, through whom the machine has been purchased, of any part of the equipment found defective within 12 months from the date of commissioning or 15 months from the date of despatch whichever is earlier.

2.

The warranty is valid only if:

2.1. Installation and commissioning is taken care of by BSL/their authorised persons. 2.2. The equipment is operated as per the Company’s operating instructions. 3.

The above said warranty does not cover the following:

3.1 Any leakage of Refrigerant due to improper operations 4.

This warranty is not valid if any repair and/or modifications are carried out by the customer himself or his representative without written concurrence from Blue Star Limited.

5.

The warranty extended herein is in lieu of all implied conditions/warranties under the law and is confined to the repairs or replacements of defective parts and does not cover any consequential or resulting liability damage or loss arising from such defect. Furthermore, the warranty in no case, shall extend to the payment or any monetary consideration whatever of the replacement or return of the Screw Chiller as a whole

6.

Any repair/ replacement shall not extend the overall warranty period as specified above.

7.

The cost of transportation of material and of persons beyond Municipal jurisdiction shall be borne by the customer.

8.

This warranty may be read in conjunction with any other warranty on the Screw Chiller is supplied as part of a Project.

120

the installation as a whole, if

USER'S MANUAL

Service Centres EAST

SOUTH

WEST

BHUBANESHWAR 3A, Satya Nagar, 2nd Floor, Bhubaneswar 751 007. Tel: (0674) 2508270 / 2508303

BANGALORE Ozone Manay Technology Park Sy. No. 56/18 & 55/9 Hongasandra Village Begur Hobli, Garvebhavipalya Bangalore – 560 068 Phone : 41854000

BHOPAL “Star Arcade”, 2nd Floor Plot No.165A & 166, Zone-I Maharana Pratap Nagar Bhopal 462 011. Tel: (0755) 2553378 / 4273378 / 79

CHENNAI 104, ‘Garuda Building’, Cathedral Road, Chennai 600 086. Tel: (044) 42444200 28116707- 8

GOA 1st Floor, Flat No.1 Buddhaseth Apartments, Tonca, Caranzalem, Goa 403 002. Tel: (0832) 2461671 / 2462087

GUWAHATI New Star Freeze Building 2nd Floor, Opp. Kunjalata Bibah Bhawan, G. S. Road, Guwahati 781 005. Tel: (0361) 2340619 / 2340620 KOLKATA 7, Hare Street Kolkata 700 001. Tel: (033) 22134200 / 22106609

NORTH CHANDIGARH SCO 1, Madhya Marg, Sector 26 Chandigarh 160 019. Tel: (0172) 2790482 / 5024000 JAIPUR A-19, Main Sahakar Path, Near Sahakar Bhawan, Jaipur - 302 001. Tel: (0141) 2744033 LUCKNOW B-140, Nirala Nagar Lucknow 226 020. Tel: (0522) 2786172 / 2787274 NEW DELHI E-44/12 Okhla Ind. Area Phase II, Ohkla New Delhi 110 020. Tel: (011) 41494200 / 000

KOCHI 39/5766, Tharakandam Estate Kurisipally Road Kochi 682 015. Tel: (0484) 2356139 / 2357933 / 2357934 SECUNDERABAD 207, Sikh Road Bantia Estates Secunderabad 500 003. Tel: (040) 44004000 TRIVANDRUM T.C. IX/1490 ‘Chandrika’, Sasthamangalam Trivandrum 695 010. Tel: (0471) 2720025 / 2720065 VISAKHAPATNAM 47-12-6/7 2nd Floor Amaravathi Complex Dwarakanagar Visakhapatnam 530 016. Tel: (0891) 2748405 / 2748433

MUMBAI Blue Star House 9A, Ghatkopar Link Road Saki Naka, Mumbai 400 072. Tel: (022) 66684200 / 66684000 NAGPUR 219, Bajaj Nagar, 1st Floor, South Ambazari Road, Nagpur 440 010. Tel: (0712) 2229244 / 2249000 PUNE 201/A, Nityanand Complex 1st Floor, 247/A Bund Garden Road Pune 411 001. Tel: (020) 26167230 / 26163031 / 26162307 VADODARA Ramakrishna Chambers 7th Floor, Productivity Road Alkapuri, Vadodara 390 005. Tel: (0265) 2338561 / 2332021 / 2332022

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For any assistance, CALL: Blue Star Service: Ph: ............................................................ Cell: ..........................................................

Blue Star Dealer: Ph: ............................................................ Cell: ..........................................................

Blue Star Regional Manager: Ph: ............................................................ Fax: ..........................................................

Blue Star’s/Dealer’s engineer to fill above details before handing over this Manual to customer.

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USER'S MANUAL

BREATHE

EASY

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Blue Star Chiller Air & Water Cooled Screw Chiller R22 DX Manual

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