Company Company B usiness Zamil Air Conditioners was founded in 1974, and is the first major business venture in manufacturing sector for the Al Zamil group of Companies. It is also the first manufacturing unit for air conditioners to be established in Saudi Arabia.
Zamil Air conditioners manufactures both consumer and central range of air conditioners and has sales operations in over 55 countries in the Middle East, Europe, E urope, America, Africa, Australia and the Far East. The company’s operations are structured into four Strategic Business Uni ts (SBUs) supporting six in - house product and service brands as well as a number of international brands under the OEM sales. The six in-house brands are Classic, Cooline, CoolCare, Clima Tech, Geoclima and K essler Clima Tech. The four SBUs are: 1. Consumer Business unit supporting Classic, Cooline, GE GE and OEM brands for consumer range range of air conditioners. 2. Unitary & Applied Business Business unit supporting supporting Classic, Classic, Cooline, GE GE and OEM brands for commercial commercial range range of air conditioners. 3. Zamil CoolCare CoolCare - service service and maintenan maintenance ce provider. provider. 4. Geoclima srl - independent business and supporting other SBUs for their requirement of Chillers & Double skin AHU’s. The first three SBUs - Consumer Products, Unitary & Applied P roducts and Zamil CoolCare direct their business operations from the corporate headquarters at Dammam, Saudi Arabia. The production facilities at Dammam are shared by Consumer Products and Unitary & Applied Products. Geoclima has its own production and functional departments located at Monfalcone, Italy. All the four SBUs, while operating independently, supplement each other’s activities in a way that makes synergy work at its best and achieve the corporate goals of increased productivity and efficiently. Factories Factories and Productio ns Zamil Air Conditioners has its prime manufacturing base at Dammam, Saudi Arabia and has one speciality production facility in Italy operated by Geoclima. The company can produce up to 440,000 room air conditioners, 60,000 mini-split systems and 36,500 central air-conditioning systems per year. Quality & Product Certificates Certificates The Quality systems and policies at Zamil Air Conditioners comply with the required ISO 9001:2000 certification.
Zamil Air Conditioners is the first company in Saudi Arabia to receive the SASO (Saudi Arabia’s Standard Organization) certificate for room air conditioners. Its products and services are also certified with: 1. 2. 3. 4. 5. 6.
CE (Counci (Councill of European European Commun Community) ity) UL (Underwrite (Underwriters rs Laboratory Laboratory)) AHAM certificat certificate e (Association (Association of Home Appliance Appliance Manufactur Manufacturers) ers) Eur Euroven oventt D E M KO ETL
Other awards include the prestigious Engineering Excellence Award of General Electric, and the inaugural Prince Mohammed bin Fahd Al Saud Award for Factory Safety. Our Products In addition to the consumer products such as the Room Air Conditioners (RAC) and the Mini Splits, Zamil Air Conditioners manufacturers a host of residential and commercial air conditioners. This board range extends from the concealed units up to 5 ton, the ducted splits up to 30 tons, the packaged units up to 70 tons. The single and double doubl e skin air handling units up to 130,000 CFM and the water chillers up to 487 ton cooling capacity.
INDEX Co n t en t s
Pag e
Model decoding ................................. .................................................. .................................. .................................. .................................. ............................. ............................. ....................... ...... 2 Unit features .................................. ................................................... .................................. .................................. .................................. .............................. .............................. .......................... ......... 3 Standard specifications .................................. ................................................... .................................. ................................... ................................... ............................ .................. ....... 3-5 Options & accessories ................................. .................................................. .................................. .................................. .................................. ............................. ...................... .......... 6-7 Physical data ................................ ................................................. .................................. .................................. .................................. ............................... ............................. ....................... ........ 8-9 Selection procedure ................................. .................................................. .................................. .................................. .................................. ............................. .......................... .............. 10 Performance data ................................ ................................................. .................................. .................................. ................................... .............................. ......................... ............. 11-12 11-12 Electrical data ................................. .................................................. .................................. .................................. .................................. ............................... ............................... ...................... ..... 13 Dimensions ................................. .................................................. .................................. .................................. .................................. ................................. ............................... .................. ... 14-16 Typical schematic wiring diagram ................................ ................................................ ................................. ................................. .............................. ..................... ....... 17-21 Rigging instructions ................................ ................................................. .................................. .................................. .................................. ............................... ............................ .............. 22 Installation clearance .................................. ................................................... .................................. .................................. .................................. .............................. ........................ ........... 23 Mounting location ................................ ................................................. .................................. .................................. ................................... ............................... .............................. ................. 24 Load distribution ................................. ................................................... ................................... .................................. .................................. ............................. ............................. ................... .. 25 Installation instructions ................................. .................................................. .................................. ................................... ................................... ................................. ..................... ..... 26 Electrical ................................... .................................................... .................................. .................................. .................................. ............................... ............................. ............................ ............. 27 System design .................................. ................................................... .................................. .................................. .................................. ............................. ............................. ...................... ..... 27
CONTINUING RESEARCH RESULTS IN STEADY IMPROVEMENTS. THEREFORE, THESE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
1
S N O I T P O S T I 1 1 K L A C I N A H C E M
E & V L R A E I & V , R F N N D E O O I I I R L T T E E C C T R E L U U I V E S ( S F ( L R S E A U S S N R E E ) V S O O E G G L I S S I O O O T C V U U O S E B B B P E L A A & A R P P O O O O M M M ) G A G O L R B B B B O O O Y E E B V D A F E G E G B E M M M M C C C R E F R R R R S S O O O O A C O U A U A A N C C C C R P O D A - S H S H G E & & & N L T S C S C T D P O H R H H H N & & & & A P U E S E S , , , T E H R I R I O O S S P D P D H C M M M M M M M : R : : : : : : : : : : : :
+
+ +
A M
L I O C R E 0 1 S N E D N O C
N I F M U N I M U L A :
A
G N O I N P + I T O D S T I 9 O K L C C A I T E R E L D C E L E D N O O I E T P Y M 8 A R T T * E I
S N O I T P O D R A D N A T S :
N I F M U N I M U L A D E T A O C :
B
P
C D
* * * * S
E L B A T E S R U U J S D S A E & R G P N I W S L O E C L H Y & C C H T N G I A I W F H S :
T C A T N O C E E R F T L O V :
C I T E M R E H I M G E N S I E T L A P C U O R R P D I A C U E Q : R
L L O R C S L A U D :
0 6 3 0 3 2 / 8 0 2 :
0 ) E 6 - R 3 - I 0 W 8 4 3 ( :
H M
Q
H T I W N I F M U N I M U D L R A A D U E G T L A I O O C : C
E
T I U C R I C R O S S R E E R K P A M E O R C B :
V C
* * * * *
C I T E M G R N E I T H - A I M C E O S R P L I A C U E D : R
S H ) z L H A h C P I V 7 R T ( Y C L E P L P E U S
H R J K N Q S T U V F G L B
L I O C H T I W N I F M U N D I M R U A L U A : G
N I F R E P P O C :
A K
G U I R C R F I E C R
O
O O B B O O O M M B B B O O M M M C C O O O R R C C C & R P O & O & & & P , , H H H H H , , , , , A A A A M : : : : :
D I O N E L O S N W O D E P V M L U A P V :
P
) C I H R I T T E W O M G S S R N E E I R T H - A P I R M C E M E O D O S R A C P O D L I A C L A U E N E L D : R U (
* *
L
L I O C H T I W N I F R E D P R P A O U C : G
G
O B M O C
V & K :
O B O O M B B O M M C O O C C C
C & K :
P & K :
& V , K :
O B M O C
P & V , K :
O B M O C P & C , V :
O B M O C P & C , V , K :
B E G T M N L C I T E M R H ) E T R I H - W O I S M G S E N E S I R T E A P L C R M P E O U O D C R R A P O D D I A C L A U E N E L Q : R U (
* * *
M
0 6 3 0 6 4 :
F
G ) N S I L N O 6 O ( O T 5 0 5 0 5 0 0 0 0 0 0 0 0 0 & C Y 0 5 L I 0 2 0 3 0 3 0 4 0 4 0 5 0 6 0 7 0 8 0 9 0 0 1 2 1 5 1 7 1 T 2 , A 4 N C I A M P O A N C 3 C & I S 2 A , 1 B
. . s r r s o o s s s s e r r e p p m m o o c c c c i t i t e e m r m r e e h h i i m m e e s s r r o f o f r r o t o t a l a l o o s i s i n . n o i o n i t o t i a a t r r a i b c b i v i v d t t n u u i o o p t h t i r i h i t t w w i n d d n U n . a a 3 s e s , h s p a i c l r i t g t t F w h s F i g O e r s , u . / y N s e l v s O l n r e a o r v . 0 o l s p l y s h 7 l 1 e g a n i r o X p h b , r 0 A m & i e 8 C o r 0 - C w d o r X 0 . l e , l A 9 2 r t i C 0 , i . e f y - X n r e l d l A n o . 0 C i b t r y 3 e a o l a l t s s c n 0 l i e c r o X e i o d f A a s d e l n 5 C o i s p 2 s F p e y e r 0 l m t r X e r F d n p o i d O l A o f / e a m t o C l e N a n c m s l r b O e o i s c e f a t c t l i i n ) d o i e n o l a e m e a U t v r m b v a . n o e a e 1 o o l t c b i r : ) a h a p v a n 0 & i m u a s o i e t 4 e e r 0 5 s o l 4 p s X r b r o 0 a s o a A t l X f e i s c r C a r p a A l e s C b v o t l a s n m e a s l i o o e s c e c c d r e l r o a p i p c e m d o p t e s m r o r a e f m t o o c m t r s l p o i s r s i o f e c e v ( u ( e t h r - f s g p e i o s n u n m m r m n i o a o i o e e i t t o p p g c h s t e l i - e a o o r l l n d d u o r m p i r s c e r u b r a a s e s s d d d r m l l n n p a a a o l c a a u u u t t i D D Q A S S O – – – – – –
* * * * * * + + : * * + S * *
G N I T X S I A N E N C D U N O C
E T O N
2
UNIT FEATURES GENERAL The CAX series air cooled condensing units from Zamil Air Conditioners are designed to provide engineering excellence in comfort air conditioning and industrial cooling with a superior combination of energy saving, performance, application flexibility, ease of service & maintenance and ability to withstand extreme ambient temperatures. These units can be combined with a wide variety of evaporator coils and blower packages to provide qui te and dependable comfort. These units can be installed on a roof tops or at ground level. These CAX series units are designed to use ozone friendly HFC R-134a refrigerant. HFC R-134a is a singular compound form with proven highly efficient thermodynamic proprieties. The compound has no chlorine and does not contribute to Ozone depletion. There will be no phase out and no replacement costs for the life of the equipment.
SALIENT FEATURES OF THE CAX SERIES: * HFC R-134a equipments are value added product and a giant leap toward addressing some of the issues relating to climate change and environmental protection.
* Compact unit design & excellent serviceability. * High energy efficiency ratio (EER). Scroll and semi hermetic reciprocating compressors. * Independent refrigeration circuits. * Integral sub cooling circuit provided to increase overall unit efficiency. * Low noise condenser fans, direct drive with rolled form venturi design to eliminate airflow recycling. * Condenser fan motors are totally enclosed air over type (TEAO) with class 'F' winding insulation. * Microprocessor based controls. * High safety standards with UL listed electrical components. * Quality assurance according to ISO 9001: 2000. Guarantees high and constant product quality.
STANDARD SPECIFICATIONS A. UNIT CASING & CONSTRUCTION Unit casing shall be fabricated of heavy gauge (G-90) galvanized steel. Steel sheet panels are zinc coated and galvanized by the hot dip process of lock forming quality conforming to ASTM A 653 commercial weight G-90 followed by backed on electrostatic polyester dry powder coat. Condensing unit consists of dual or quadro refrigeration compressors, condenser coil, propeller fans, control w iring and interconnecting piping completely factory assembled. The whole unit is mounted on pressed steel or 'C' channel base rail with lifting holes. The unit is provided with an integral weather resistant control panel suitable for remote thermostat control, ready for field connection.
B. COMPRESSOR Semi-hermetic reciprocating compressors are used as standard for models CAX030 - CAX170 except for models CAX020CAX025 scroll compressors are used as standard. All the compressors are conforming to ARI 540 standard. The compressors are equipped with internal motor protection, factory installed crankcase heaters and rubber vibration isol ators for quiet and efficient operation. As an option, semi-hermetic compressor can be fixed on anti-vibration mounting (spring type) along with suction & discharge line vibration eliminators. Oil pressure control is provided on units with semi-hermetic compressor only. Each compressor has lock-out devices to protect it from short cycling when tripped by safety controls. Each compressor has separate condenser coil with safety controls. Sight glass and filter drier are standard for all models.
3
C. CONDENSER COILS V & W -configurations condenser coils are of the enhanced louvered fin-and-tube type, constructed of seamless 3/8" dia. inner grooved copper tubes, mechanically bonded to aluminum fins for maximum heat transfer efficiency. As an o pt io n, corrugated copper fins or coated aluminum fins or other coated coils may be provided. The fins have full self spacing collars which completely cover each tube. The staggered tube design improves the thermal efficiency. End plates support sheets are heavy gauge galvanized steel with extruded collars for better tube support, formed to provide structural strength. Each coil is pressure tested in the factory at not less than 450 psi air pressure.
D. CONDENSER FANS Condenser fans are constructed of die cast aluminum blades/hubs with direct driven motors. All fans are statically and dynamically balanced to operate at minimum noise and vibration. Fan blades are designed with appropriate pitch angle which result in maximum airflow through the condenser coil.
E. CONDENSER FAN MOTOR Condenser fans, the impeller and motors are so constructed to form an i ntegral unit. All fan motors shall be three phase with class 'F' winding insulation and ball bearings for high ambient application. These fan motors are of totally enclosed air over type (TEAO) with inherent thermal protection of automatic reset type & specially designed for outdoor applications.
F. SERVICE VALVES Both suction and liquid service valves are brass, back seating type with sweat connections. Valves are externally located so refrigerant piping connections can be made quickly and easily.
G. CONTROL PANEL The control panel design is equivalent to NEMA-4 standard with hinged door for easy access ensuring dust and weatherproof construction. Internal power and control wiring is neatly routed, properly anchored and al l wires are identified with cable markers as per NEC standard applicable to HVAC units. The electrical controls used in the control panel are UL approved, which are reliable in operation at high ambient conditions for a long period.
H. MICROPROCESSOR CONTROLLER These condensing units are provided with a microprocessor control board incorporating the following features: •
BALANCE LOADING OF COMPRESSORS: The unit’s electronic control automatically operates lead/lag sequence of compressors. This is to load the compressors evenly over long periods of operation. If required however, compressor 1 can also be set to always lead. In this case, compressor 1 always starts first and stops last. (Selectable through dip switch setting on control board).
•
PUMP DOWN FUNCTION: In units equipped with pump down system, the controller provides the time delay between solenoid’s opening and compressor starting to equalize the pressure in the system necessary for compressor to startup. (Selectable through dip switch setting on control board).
•
COMPRESSOR ANTI-RECYCLING PROTECTION: The controller has a built-in 3 minutes minimum off timer for compressor. This is for compressor protection in case of accidental manual re-set or immediate re-cycling of thermostat due to load demand.
•
COMPRESSOR LOCK-OUT FUNCTION: If any of the unit’s safety control trips due to abnormal conditions, the electronic controls locks out the compressor after a pre-determined timing preventing a re-start unless attended by a qualified service technician. The unit can be re-started through thermostat re-set after ensuring safe system conditions.
•
FAULT DIAGNOSTICS: In case of system fault, LED’s on the board emits a flashing signal indicating where the fault is. This is to guide the service technician in identifying the fault.
•
DIGITAL I/O’s: The unit’s control board is compatible to operate with a DDC controller or any standard 24V a.c. thermostat commercially available.
•
SEQUENTIAL CONTROL: With input signals from the thermostat, the motors in the equipment is started in sequential order: supply fan – condenser fan – compressor; at a pre-determined timings. 4
I.
ADJUSTAB LE HIGH PRESSURE SWITCH (HPS)
Field adjustable high pressure switch provides safety protection in the case of excessive discharge pressure. Typical factory pressure settings are shown in table below. OPEN
CLOSE
350 ± 10 Psig
300 ± 10 Psig
J. ADJ USTABLE L OW PRESSURE SWITCH (LPS) Field adjustable low pressure switch provides safety protection in the case of low suction pressure and loss of refrigerant charge. Typical factory pressure settings are shown in table below. OPEN
CLOSE
10 ± 5 Psig
30 ± 5 Psig
K. COMPRESSOR OVER LOAD PROTECTOR The compressors has built-in thermal protector for its protection against high winding temperatures. Motor starter control is equipped with an external overload relay as an additional protection against overload.
L. UNDER VOLTAGE MONITORS (UVM) This device protects the motors in the unit from faults such as; under or over voltage, unbalance & phase reversal of the power supply. When the device sensed such faults, it will cut-off the supply in the control circuit thereby cutting off power to the motors. The voltage monitor will re-set automatically w hen power is brought back to it’s normal conditions. LINE VOLTAGE RANGE 190 - 480 VAC
TRIP & RE-SET VOLTAGE (% OF SET POINT) UNDER VOLTAGE
OVER VOLTAGE
PHASE IMBALANCE
TRIP
RE-SET
TRIP
RE-SET
TRIP
RE-SET
90%
93%
110%
107%
6%
4.5%
M. CRANKCASE HEATERS Each compressor has crankcase heater. The compressor crankcase heater is always on when the compressor is deenergized. This protects the system against refrigerant migration, oil dilution and potential compressor failure.
N. FILTER DRIER Refrigerant circuits are kept free of harmful moisture, sludge, acids and oil contaminating particles by the filter drier. Cartridge (sealed type) is standard for model CAX020 - CAX040 and for all other models replaceable core filter drier is provided.
O. SIGHT GLASS Moisture indicating sight glass (supplied loose) to be installed in liquid line in the field. Easy to read color indi cator shows moisture contents and provides a mean for checking the system refrigerant charge.
5
OPTIONS & ACCESSORIES A. CAPACITY CONTROL On semi-hermetic compressors, capacity control is achieved by cycling compressors on /off and cyli nder unloading. The use of unloading provides good part load capacities. Hot gas bypass is available as an option on the lead circuit to permit operation of the system down to 80 % of its unloaded capacity. Under low ambient condition, it controls temperature by eliminating the need to cycle the compressor on and off, ensuring narrow temperature swing and lengthen the life span of the compressor.
B. ADVANCE MICROPROCESSOR Advance microprocessor control can be offered to achieve precise control and safety functions of the condensing units. Microprocessor is simple to use, push button keyboard allows to access the operating conditions, control set points and alarm history clearly displayed on a multi-line backed illuminated LCD panel. Also it’s compatible with building management system and adoptable to LON protocol.
C. FAN CYCLE SWITCH HEAD PRESSURE CONTROL (FCS) The capacity of air-cooled condensers varies with the difference between condensing temperature and condenser entering air temperate (ambient temperature). It increases as this difference increases. For a given capacity, a drop in the ambient temperature will lower the condensing temperatures and if the ambient temperature drops below a given limit, head pressure control is required. Control shall be set for a minimum of 95°F (35°C) saturated refrigerant condensing temperature, or to suit the specified application.
D. PUMP DOWN SOLENOID VALVE (PDS) A pump down solenoid valve may be installed in the liquid line. When the room thermostat is satisfied, the valve closes and the compressor continues to run until a substantial portion of the refrigerant has been pumped out from the evaporator. The low-pressure switch will cycle off the compressor at a predetermined evaporator pressure.
E. CIRCUIT BREAK ER Protect against compressor & condenser fans branch circuit fault. When tripped (Manually or automatically), the breaker opens the power supply to the compressor and control circuit through auxiliary contacts.
F. PRESSURE GAUGES Suction, discharge and oil (semi hermetic compressor only) pressure gauges.
G. DISCHARGE LINE MUFFLERS Discharge line mufflers are installed to eliminate noise due to refrigerant pulsation.
H. SPRING ISOLATORS (for semi-hermetic comp resso rs onl y) Compressors with spring isolators and vibration eliminators reduces the vibration transmitted from compressor to the piping and unit structure. I.
CONDENSER COIL GUARD
Protect the condenser coil from physical damage.
J. THERMO-GUARD COATED CONDENSER Copper/aluminum fins/ tubes condenser coils for seashore salty corrosive environment. Specify your requirement during order entry.
6
STANDARD FEATURES/OPTIONS DESCRIPTION
STANDARD FEATURES
Dual scroll compressor (for CAX020 - CAX025 only) Dual semi-hermetic compressor (for CAX030 - CAX080 only) Quadruple semi-hermetic compressor (for CAX090 & above) Capacity control for semi-hermetic compressor on lead compressor Compressor crankcase heaters Compressor circuit breakers Compressor overload protection Spring isolators with vibration eliminators for semi-hermetic compressor Compressor shut-off valves for scroll compressor Condenser fan motor, totally enclosed air-over type Condenser fan - direct drive, propeller type Condenser fan guard UVM Filter drier (sealed type) for units upto CAX040 Filter drier (replaceable type) for units CAX045 & above Sight glass (moisture indication) Low pressure switch (adjustable type) High pressure switch (adjustable type) Fan cycling (low ambient) Pump down solenoid valve Pressure relief valve Suction & discharge pressure gauges for scroll compressor Suction, discharge & oil pressure gauges for semi-hermetic compressor PIII controller Microsmart controller Coil guard Aluminum fins condenser coil Copper & coated fins condenser coil Thermo-guard coating on aluminum/copper coil Hot gas bypass Liquid line isolating valves Volt free contact
7
OPTION (FACTORY INSTALL ED)
PHYSICAL DATA MODEL NUMBER
CAX020
CAX025
CAX030
CAX035
CAX040
CAX045
CAX050
22
28
30
35
41
46
53
60
NUMBER OF REFRIGERATION CIRCUIT
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Dual
COMPRESSOR
Scroll
Scroll
4.1
4.7
NOMINAL CAPACITY , TONS*
Type Oil per system (liters)
Semi-hermetic reciprocating 4.7
4.7
Refrigerant** Charge per system (oz)*** CONDENSER FAN
4.9
4.9
4.9
4.9
740
830
960
1080
R-134a 400
500
540
630
Type
Propeller
Qty. – Diameter (inch)
2 – 30
2 – 30
2 – 30
4 – 30
4 – 30
4 – 30
4 – 30
4 – 30
Nominal CFM
15000
15000
15000
30000
30000
30000
30000
30000
Motor HP – RPM CONDENSER COIL
CAX060
1.5 – 1100 1.5 – 1100 1.5 – 1100 1.5 – 1100 1.5 – 1100 1.5 – 1100 1.5 – 1100 1.5 – 1100
Type
Inner grooved tubes and enhanced fins 3/8–3–14
3/8–4–14
3/8–4–14
3/8–2–14
3/8–3–14
3/8–3–14
3/8–4–14
3/8–4–14
30
30
33.3
60
60
60
60
66.6
HIGH PRESSURE SWITCH Open (PSIG)
350 ± 10
350 ± 10
350 ± 10
350 ± 10
350 ± 10
350 ± 10
350 ± 10
350 ± 10
Close (PSIG)
300 ± 10
300 ± 10
300 ± 10
300 ± 10
300 ± 10
300 ± 10
300 ± 10
300 ± 10
Open (PSIG)
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
Close (PSIG)
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
Suction line size (OD), inch
1-3/8
1-5/8
1-5/8
1-5/8
2-1/8
2-1/8
2-1/8
2-5/8
Liquid line size (OD), inch
5/8
7/8
7/8
7/8
7/8
7/8
1-1/8
1-1/8
Tube Dia–Rows–Fins per inch
Total face area (Sq. ft.)
LOW PRESSURE SWITCH
REFRIGERANT LINES+
SOUND PRESSURE LEVEL, dBA (@ 3/5/10 meter)++ 69.3/65.8/60.5 69.7/66.1/60.9 69.8/66.3/61 72.9/69.3/64.1 72.8/69.3/64 72.9/69.3/64.1 73.3/69.8/64.5 73.3/69.8/64.5
OPERATING WEIGHT, Kg.+++
754
838
1043
1315
1416
1450
NOTE: * Nominal cooling capacity @ 950F outdoor and 450F saturated suction temperatures. ** Unit is factory supplied with holding charge only. *** Operating system charge is applicable when matched with air handling units & connected by 25 feet of refrigerant piping. + Pipe sizes are for runs up to 50 feet to indoor unit. For refrigerant lines longer than 50 feet, use next larger size. ++ Based on free field area at ARI conditions. Tolerance: ±2dBA. +++ Values indicated are for standard unit with aluminum fin condenser coils.
8
1510
1551
PHYSICAL DATA MODEL NUMBER
NOMINAL CAPACITY , TONS* NUMBER OF REFRIGERATION CIRCUIT COMPRESSOR
CAX070
CAX080
CAX090
CAX100
CAX120
CAX150
74
86
95
105
123
147
171
Dual
Dual
Quadruple
Quadruple
Quadruple
Quadruple
Quadruple
4.9
5.2
5.2
1110
1325
1540
Type Oil per system (liters)
Semi-hermetic reciprocating 5.2
5.2
4.9
Refrigerant** Charge per system (oz)*** CONDENSER FAN
4.9 R-134a
1330
1550
855
Type
950 Propeller
Qty. – Diameter (inch)
4 – 32
4 – 32
6 – 32
6 – 32
6 – 32
8 – 32
8 – 32
Nominal CFM
50124
47644
73266
73266
69174
87032
95288
2 – 1100
2 – 1100
2 – 1100
2 – 1100
2 – 1100
2 – 1100
2 – 1100
Motor HP – RPM CONDENSER COIL
CAX170
Type
Inner grooved tubes and enhanced fins 3/8–3–14
3/8–4–14
3/8–3–14
3/8–3–14
3/8–4–14
3/8–4–14
3/8–4–14
87.5
87.5
120
120
120
140
175
HIGH PRESSURE SWITCH Open (PSIG)
350 ± 10
350 ± 10
350 ± 10
350 ± 10
350 ± 10
350 ± 10
350 ± 10
Close (PSIG)
300 ± 10
300 ± 10
300 ± 10
300 ± 10
300 ± 10
300 ± 10
300 ± 10
Open (PSIG)
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
10 ± 5
Close (PSIG)
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
30 ± 5
Suction line size Dual (OD), inch Quadruple
2-5/8
2-5/8
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
2-1/8
2-1/8
2-5/8
2-5/8
2-5/8
Liquid line size Dual (OD), inch Quadruple
1-1/8
1-3/8
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
N.A.
7/8
1-1/8
1-1/8
1-1/8
1-3/8
Tube Dia–Rows–Fins per inch
Total face area (Sq. ft.)
LOW PRESSURE SWITCH
REFRIGERANT LINES+
SOUND PRESSURE LEVEL, dBA (@ 3/5/10 meter)++
OPERATING WEIGHT, Kg.+++
74.7/71.2/66 75.1/71.6/66.3 75.7/72.7/66.9 76.2/72.7/67.4 77.1/73.6/68.3 77.7/74.2/69 78.1/74.6/69.3 1949
2112
2804
2870
2994
3738
NOTE: * Nominal cooling capacity @ 950F outdoor and 450F saturated suction temperatures. ** Unit is factory supplied with holding charge only. *** Operating system charge is applicable when matched with air handling units & connected by 25 feet of refrigerant piping. + Pipe sizes are for runs up to 50 feet to indoor unit. For refrigerant lines longer than 50 feet, use next larger size. ++ Based on free field area at ARI conditions. Tolerance: ±2dBA. +++ Values indicated are for standard unit with aluminum fin condenser coils.
9
4216
SELECTION PROCEDURE 1. Enter performance tables at specified SST and desired ambient conditions to find gross capacity and power input. 2. HEAT REJECTION: Calculate condenser Total Heat Rejection Capacity as follows: HR = Unit cooling capacity + (3.41 x Total Unit Power Input, Watts). 3. HEAD PRESSURE: To determine head pressure (psig) use the following conversion table: Condensing Temp. - 0F. (R-134a) Head Pressure - PSIG.
100
110
120
130
140
150
124.1
146.4
171.1
198.7
229.2
262.8
160 299.9
4. CORRECTION FACTORS FOR ALTITUDE: ALTITUDE (FT.)
2000
4000
6000
8000
10000
Condensing Unit Cooling Capacity
.99
.98
.96
.95
.94
Condensing Unit & Evaporator
.98
.96
.93
.90
.88
FACTOR
10
) 9 7 9 4 . 5 . 7 . 7 . 0 . 0 . 9 . 8 . 8 . 4 . . 4 W 7 . 8 . 2 . 4 . 4 . 1 . 5 . 6 . 3 . . 3 . 7 . 7 . 4 . 4 . 0 . 8 . 9 . . 1 3 0 8 9 2 1 1 2 9 3 6 6 4 7 5 4 8 9 4 3 8 7 0 9 8 4 4 k 7 1 1 3 6 9 2 0 2 2 4 7 0 4 ( I 2 3 3 4 4 5 6 7 9 1 1 1 1 1 2 3 4 3 4 5 5 6 8 1 1 1 1 1 2 2 P ) F F 2 T 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 C ) H 6 0 2 0 1 5 0 0 9 1 4 7 6 4 6 0 0 1 B 3 7 5 3 8 1 6 4 6 5 5 7 2 3 3 3 7 9 1 5 9 4 9 5 1 9 9 0 2 2 0 2 3 6 4 0 2 8 4 9 7 5 6 8 0 1 3 5 7 M 0 2 2 2 3 3 4 5 5 6 8 9 0 ( 1 1 1 1 2 3 3 3 4 4 5 6 7 8 1 1 1 1 1 C T ) 2 6 2 5 4 . 4 . 6 . 7 . 5 . 2 6 . 7 . 7 . 1 . 5 . 1 . W . 0 . 3 . 2 . 3 . 7 . 5 . 3 . 8 . . 0 . 8 . 0 . 1 . 4 . 7 . 2 . . 8 9 5 3 4 . 9 7 7 7 4 7 6 5 5 3 6 3 2 6 6 2 7 6 9 7 6 2 2 k 1 2 5 9 2 9 0 1 1 3 6 0 3 ( 2 3 3 4 4 5 6 7 9 1 2 3 3 4 4 5 6 8 1 1 1 1 1 2 1 1 1 1 1 2 2 I P
0 3 5 2 9 2 2 5 2 3 9 2 4 2 3 4 8 7 4 1 5 4 8 5 5 2 5 7 5 5 0 0 5 ( 5 5 5 5 4 5 5 5 5 5 4 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
)
F F 2 4 6 3 0 3 3 7 4 5 0 4 5 4 5 5 9 9 6 2 6 6 0 6 7 3 6 8 7 7 0 0 5 ( 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 4 4 4 4 4 4 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 T C
A T A D E C N A M R O F R E P
) H 1 6 9 6 4 9 7 4 5 2 1 5 5 8 7 2 6 0 4 7 8 8 5 3 7 0 0 2 3 B 3 1 5 9 1 2 6 3 8 1 6 2 8 5 3 6 8 9 0 9 2 5 7 5 2 4 0 7 3 1 0 3 6 0 2 4 6 9 M 2 2 2 3 3 4 4 5 6 7 8 9 1 1 1 1 1 2 3 3 4 4 5 6 7 8 9 1 1 1 1 1 ( C T ) 0 2 9 9 . 4 . 4 . 8 . 1 . 7 0 . 1 . 2 . 7 . . 3 W 0 . 1 . 3 . 8 . 9 . 1 . 5 . 7 . 8 . . 7 . 7 . 5 . 7 . 6 . 4 . 2 . 0 . . 3 5 0 7 8 . 6 3 1 8 9 5 3 4 1 4 2 0 3 3 9 6 4 7 5 4 9 9 4 k 0 2 5 8 1 6 1 1 3 6 9 2 ( 2 3 3 4 4 5 6 7 9 0 2 3 3 4 4 5 6 7 9 1 1 1 1 1 2 1 1 1 1 1 2 I P
E R U T A R E P F ) F 3 6 7 4 1 5 4 8 5 6 2 5 6 6 6 6 9 0 7 3 7 7 1 8 9 4 8 9 8 9 0 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 3 3 3 3 4 3 3 3 3 3 3 3 M 0 ( 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 E 5 0 T 1 T C T N ) E I H 0 8 5 4 0 8 1 9 B 0 8 5 0 0 3 0 2 4 3 0 0 B 2 8 4 0 1 7 2 6 8 2 3 8 2 4 7 0 1 0 8 4 1 3 9 6 2 9 8 2 5 6 8 M 1 3 6 9 7 4 7 3 0 7 5 4 0 0 1 3 5 8 0 M 1 1 1 1 1 2 3 3 4 5 5 6 7 9 1 1 1 1 1 2 ( 2 3 3 3 4 5 5 6 8 9 0 A C T ) 3 4 6 8 . 8 . 6 . . 1 . 1 . 6 . 3 7 . 7 . 8 . 3 4 W . 0 . 2 . 5 . 3 . 4 . 4 . 0 . 4 . . 3 . 5 . 9 . 0 . 7 . 0 . 1 . 3 . . 9 1 4 1 0 . 2 8 4 0 1 3 1 3 0 3 0 8 1 0 5 5 2 6 3 2 6 5 0 k 0 2 4 8 1 4 1 0 2 5 9 2 ( 2 3 3 4 4 5 5 7 9 0 2 3 3 4 4 5 6 7 9 1 1 1 1 1 2 1 1 1 1 1 2 I P )
4 7 9 6 2 6 6 9 7 8 3 6 8 7 8 7 0 2 8 5 9 8 3 0 1 5 9 1 0 1 F F 0 0 ( 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 2 2 2 2 3 3 3 2 2 3 3 3
5 T 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 9 C ) H 1 6 6 4 0 5 6 6 9 2 1 1 1 4 2 5 6 7 4 9 B 0 5 7 6 5 7 7 7 3 1 0 6 6 0 2 5 8 1 3 4 6 3 6 2 9 5 3 2 8 2 3 1 2 4 7 0 8 6 9 6 4 1 9 9 7 1 2 3 6 9 2 M 1 1 1 1 1 2 2 3 3 4 5 6 6 7 9 1 1 1 1 1 2 ( 2 3 3 4 4 5 6 7 8 0 C T ) 9 3 0 8 9 . 5 . 9 . 1 7 . 6 . 0 . 5 . 7 . . 8 . 0 . 0 . 6 . 4 . 2 . 1 . 6 . . 3 . . 8 . 2 . 2 . 1 . 5 . 5 . 8 . 1 . . 5 W 6 3 1 . 9 3 8 2 1 1 8 2 9 1 8 6 8 6 1 9 6 4 1 4 1 9 2 1 5 k 1 3 7 0 2 0 0 2 4 8 1 ( 2 2 3 3 4 4 5 6 8 0 9 2 2 3 4 4 5 5 7 9 1 1 1 1 1 1 1 2 1 1 2 I P )
5 8 0 7 3 7 7 1 8 9 4 8 9 8 9 7 1 4 0 6 0 0 4 1 2 7 0 2 1 2 F F 1 1 1 1 1 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 0 0 ( 1 1 2 1 1 1 1 2 1 1 1 1
5 T 1 1 1 1 1 1 1 1 1 8 C
1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
) H 9 5 1 3 4 0 1 6 0 7 3 4 8 3 9 3 2 8 2 7 8 2 2 6 8 9 5 7 B 6 0 3 6 9 0 2 3 0 3 7 1 7 0 7 5 8 4 2 8 7 7 4 0 1 3 5 8 2 0 8 2 9 7 4 3 4 0 2 3 4 7 0 4 M 1 1 1 1 2 3 3 4 4 5 6 7 8 1 1 1 1 1 2 2 ( 2 3 3 4 5 5 6 7 9 1 2 C T L E D O M
T ) F S 0 S (
0 5 0 5 0 5 0 0 0 0 0 0 0 0 0 0 5 0 5 0 5 0 0 0 0 0 0 0 0 0 2 2 3 3 4 4 5 6 7 8 9 0 2 5 7 2 2 3 3 4 4 5 6 7 8 9 0 2 5 7 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C
F 5 4
0
F 0 5
0
12
s s o e r r u G t ) a r e H e p U r m T u e B t T 0 a r t u 0 n 0 e o 1 p p i n t ( m i c y e r u i e t S c T g w o d a i p e p n t t a s i a n r C e n u : u l a d D t n l a t a o o t N S o C T E - T G T - - E S C T I L S T C P
DIMENSIONS CAX 020 & CAX 025
CAX 030
NOTE: All dimensions are in mm.
14
DIMENSIONS CAX 035, CAX 040, CAX 045, CAX 050 & CAX 060
CAX 070 & CAX 080
NOTE: All dimensions are in mm.
15
DIMENSIONS CAX 090, CAX 100 & CA X 120
CAX 150 & CAX 170 DIMENSIONS
NOTE: All dimensions are in mm.
16
MODEL
L
CAX150
4343
CAX170
5309
TYPICAL SCHEMATIC WIRING DIAGRAM (Dual compressor u nits) REFER TO UNIT NAMEPLATE FOR POWER SUPPLY
COMP. SSPS CONNECTION(AS APPLICABLE)
COMP. WITH CB CONNECTION (OPTIONAL) TOHVTB L1 L2 L3
COMP. 1: 24A
TOHVTB L1 L2 L3
SSPS1
1
(SEE NOTE -9) CB1
CB2
A 1 A 2 A 3 T T T
B B B 1 L 2 L 3 L
CC2
OLR1
OLR2 B 1 B 2 B 3 T T T
COMP
1
2
L2/R/N
2
SSPS2 M1/11
M2/14
L1/MP/L
L2/R/N
25B 2
(REMOVEJP4)
(SEENOTE3)
CRANKCASE HTR CONNECTION(AS APPLICABLE) A. SEMI-HERMETICRECIP. COMP. (BITZER) COMP. 1:
COMP
L1/MP/L
25A
(REMOVE JP3)
1
CC1
M2/14
COMP. 2: 24B
A A A 1 L 2 L 3 L
M1/11
1
CC1A-1B
1
CC2A-1B
COMP. 2:
C.HTR1
2
C.HTR2
2
100A
101A
B. SCROLL COMP. L1
C.HTR1
L2
L2
C.HTR2
L3
COMP. 1:
COMP. 2:
OIL PRESSURE SWITCH CONN.(AS APPLICABLE) COMP 1
1
OPS1
28A
CC1A-1A
25A
2
2
240
26A
OPS1-1 (REMOVEJP5) OPS2 28B
COMP 2 CC2A-1A
2
25B
2
240
26B
OPS2-1 (REMOVE JP6)
UVMCONNECTION(OPTIONAL) L1
L1
TOATB
L2
L3
L2 UVM-1 8
1
L3
UVM
1
TOATB 1A
(REMOVE JP1)
COMPRESSORUNLOADER CONNECTION(OPTIONAL) COMP1
TOATB 28A
28A
LPS3
NO
C
5A P
6A P
TOATB 28B
28B
LPS4
UL3
NC
NO
C
5B P
2
LPS5 NO C
COMP2
UL1
NC
UL2
2
NC
LPS6 NO C
6B
UL4
NC P NOTE UL3& UL4 CONNECTIONAPPLICALBLEFORCOMPWITH3 STEPS CAPACITY UNLOADING.
HGS CONNECTION W/OCOMP UNLOADER (OPTIONAL) Y1 [LVTB]
31A
Y2 [LVTB]
1
31B
LPS5 NO C
AR8
AR9
17A
C[LVTB]
17A
AR8-1 AR9-1 HGS 6E 6D 6C
2
NC P
NOTE: COMP1SHOULDALWAYSBE LEADCOMPRESSOR. DIPSWITCHS2 SHOULDALWAYS BESETTO "ON" POSITION.
HGSCONNECTION WITH COMPUNLOADER (OPTIONAL) Y1 [LVTB]
31A
Y2 [LVTB]
31B
5A
LPS5 NO C
AR8
AR9
17A
C[LVTB]
17A
HGS AR8-1 AR9-1 6E 6D 6C
2
NC P
NOTE: COMP1SHOULDALWAYSBE LEADCOMPRESSOR. DIPSWITCHS2 SHOULDALWAYS BESETTO "ON" POSITION.
NOTE: 1. Refer to next page f or legend, notes & wiring diagram for optional items. 2. Refer to unit control box (inside panel) f or exact wiring diagram.
17
TYPICAL SCHEMATIC WIRING DIAGRAM (Dual compressor u nits) LEGEND
AH U
A IR H AN DLI NG U NI T
AFS
AIR FLOW SWITCH
AR
AUXILIARY RELAY
ATB
AUXILIARY TERMINAL BLOCK
BM
BLOWER MOTOR
BMC
BLOWER MOTOR CONTACTOR
CC
COMPRESSOR CONTACTOR
CCA
CC AUXILIARY CONTACT
CB
CIRCUIT BREAKER
C. HTR CRANKCASE HEATER COMP
COMPRESSOR
ECB
ELECTRONIC CONTROL BOARD
F
FUSE
F CS
F AN C YC LI NG S WI TC H
FM
FAN MOTOR (CONDENSER)
F MC
FA N M OT OR CON TA CT OR
FMCA
FMC AUXILIARY CONTACT
FR
FAULT RELAY
HC
HEATER CONTACTOR
H PS
H IGH PR ES SU RE SW IT CH
HVTB
HIGH VOLTAGE TERMINAL BLOCK
JP
JUMPER
L1
LINE 1
L2
LINE 2
L3
LINE 3
L PS
L OW P RES SU RE S WI TC H
LUG
LUG GROUND
NTB
NEUTRAL TERMINAL BLOCK
OLR
OVER LOAD RELAY
OPS
O IL PR ES SU RE SW IT CH
P
PRESSURE
P DS
P UM P D OW N SO LE NOI D
S
DIP SWITCH (IN ECB)
SSPS
SOLID STATE PROTECTION SYSTEM
TOP
FM THERMAL OVERLOAD PROTECTION
TRANS TRANSFORER UL UVM
_ _ _
COMP. UNLOADER SOLENOID UNDER VOLTAGE MONITOR FIELD WIRING TERMINAL BLOCK OR TERMINATION POINT
SPLICE-CLOSED END
OPTIONAL AHU INTER-CONNECTION (POWER AND CONTROL FOR ELECTRIC HEATER &BLOWER MOTOR) TOPOWERSUPPLY L1 L2 L3
TOPOWERSUPPLY L1 L2 L3
TOPOWERSUPPLY L1 L2 L3
CB CB11
C C C 1 L 2 L 3 L
CB12 B 1 B 2 B 3 7 7 7
A 1 A 2 A 3 7 7 7
HC1
F F F 1 2 3 T T T
HTR1 (Stg. 1 Heating)
BMC OLR
HC2 8 6 9 6 0 7
H H H 1 2 3 T T T
HTR2 (Stg. 2 Heating) SWITCHING CONTACTS FROMT'STAT CONTROLLERORDDC
TB1 (ECB)
(byothers)
LVTB ( NOTE8)
(REMOVEJUMPERJP)
R C
24Vac
R
R
C
C
G
G
Y1
Y1
Y2
Y2
W1
W1
W2
W2
TOATB (in cond. unit)
BMCONTROL
G
STG1COOLING
Y1
STG2COOLING
Y2
STG1HEATER
W1
STG2HEATER
W2
INFAN HTR1 HTR2
14
BMC
19
OLR-1
AFS
29 30
2. ANY WIRE REPLACEMENT SHOULD BE OF 900C OR ITS EQUIVALENT. USE COPPER CONDUCTOR WIRES ONLY. 3. POWER MUST BE SUPPLIED TO CRANKCASE HEATER FOR MINIMUM OF 12 HOURS PRIOR TO SYSTEM START UP. IF POWER IS OFF 6 HOURS OR MORE, CRANKCASE HEATER MUST BE ON FOR 12 HOURS BEFORE OPERATING THE SYSTEM. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN COMPRESSOR DAMAGE. 4. FUSED DISCONNECT SWITCH OR CIRCUIT BREAKER TO BE PROVIDED BY CONSUMER WITH RATING AS RECOMMENDED BY ZAMIL. 5. COMPRESSORSARE PROVIDED WITHSSPS ORINTERNAL LINE BREAK THERMAL OVERLOAD PROTECTION.
6. IF PDS IS FACTORY INSTALLED, PLEASE READ BROKEN LINES AS CONTINUOUS LINES. 7. USE SHIELDED TYPE CABLE, #18 AWG (MIN.) FOR LVTB FIELD WIRING. GROUND CONNECT AT BOTH ENDS.
CONTROLS 230Vac
TOECB (in cond. unit)
NOTES 1. POWER SUPPLY, REFER TO UNIT NAMEPLATE.
HC2
18
28
8. COOLING OUTPUT SIGNAL FROM CONTROLLER SHOULD FOLLOW THE SEQUENCE: ON SEQUENCE - Y1 FIRST, THEN Y2. OFF SEQUENCE - Y2 FIRST, THEN Y1. 9. NEUTRAL LINE REQUIRED ON 380V-3Ph-60Hz POWER SUPPLY ONLY.
TYPICAL SCHEMATIC WIRING DIAGRAM (Quadruple compressor un its) HVTB TO FUSED DISCONNECT SWITCHORCB
REFER TO UNIT NAMEPLATE FOR POWER SUPPLY L1 L2
COMP WITH CB OPTIONS
PLEASEREFERTO SHEET3OF 3FOR CONDENSERFAN MOTOR POWERCONNECTIONS.
L3
(SEE NOTE-4)
TOHVTB L1 L1 L1
TOHVTB L1 L1 L1
TOHVTB
TOHVTB
L1 L1 L1
L1 L1 L1
NTB NEUTRAL (SEE NOTE -10) LUG
CC1
CC2
OLR1
OLR2
A A A 1 2 3 T T T
B 2 B 3 B 1 T T T
CC3
CC4
OLR3
OLR4
C 1 C 2 C 3 T T T
CB1
D 2 D 3 D 1 T T T
UVMCONNECTION L1
L2
L3
L1 L2 L3 1 UVM-1 8
TOATB
COMP
COMP
COMP
COMP
1
2
3
4
CB2
A 1 A 2 A 3 L L L
CB4
C C C 1 L 2 L 3 L
D D D 1 L 2 L 3 L
CC1
CC2
CC3
CC4
OLR1
OLR2
OLR3
OLR4
A 1 A 2 A 3 T T T
UVM
CB3
B 1 B 2 B 3 L L L
B 1 B 2 B 3 T T T
C 1 C 2 C 3 T T T
D 1 D 2 D 3 T T T
COMP
COMP
COMP
COMP
1
2
3
4
1
TOATB 1A
(REMOVE JP1)
CRANKCASE HTR CONNECTION(AS APPLICABLE) A. SEMI-HERMETICRECIP.COMP. (BITZER) COMP. 1:
TONTB N
TOHVTB L1
COMP. 2: ATB
ATB 1
JP1
1A
JP2
COMP. 3:
1B PDS2
COMP. 4:
( NOTE 9)
2 N A F T U O
1 N A F T U O
A 1 4
2 X
B 4 2 R E T A E H
1 X
1 R E T A E H
N A F N I
A 4
2 P
1 P
B 3
A 3
2 P M O C
1 P M O C
( NOTE8) LVTB
TB1
15
R
LEDFAULT INDICATOR LOCK2 SYSTEM2
I R P
CC2A-1B
1
CC3A1B
1
CC4A-1B
100B 100C
100D
C.HTR1
2
C.HTR2
2
C.HTR3
2
C.HTR4
2
Y2
YR3
W1 W2
SQMBO4 ( PII I )
SYSTEM1
Y1
31B 31C
YR4
Y3 Y4
COMP. 1: L1
C.HTR1
L2
COMP. 2: L2
C.HTR2
L3
COMP. 3: L1
C.HTR3
L2
COMP. 4: L2
C.HTR4
L3
R
G
31A
Y2
ECB1
LOCK1
(byothers)
C
JP
Y1
SWITCHINGCONTACTS FROMT'STAT CONTROLLERORDDC
R
17 24Vac
C G
E V I L
1
100A
SCROLL COMP CRANKCASE HTR CONNECTION
CC2 CC1
L A R T U E N
CC1A-1B
PDS1
SEE VFCCONNECTION (sheet 1 of 2) TOATB SEEFM CONNECTION TO TO (sheet 1 of 3) FR2 FR1
B 1 4
1
STG1COOLING
Y1
STG2COOLING
Y2
STG3COOLING
Y3
STG4COOLING
Y4
31D
ON/OFF
FUSE (ON/OFF)
TRANS2
P3_##
230v 12v-0-12v ON
C E S
DIP
DIPSWITCH LED POWERI NDICATOR J_PROG
HP1
21A
(HP1)
27A
HP2
21B
(HP2)
27B
LP1
22A
(LP1)
23A
LP2
22B
(LP2)
23B
OLR1-1
HPS1 24A
JP3
25A
JP5 26A
OLR2-1
P
HPS2 24B
JP4
25B
JP6 26B
P
LPS1 P
LPS2 P
2
TOATB (sheet 1 of 2)
PDS3 SEE VFCCONNECTION SEEFM CONNECTION (sheet 1 of 2)
(sheet1of 2)
TO FR4
PDS4
COMP. SSPS CONNECTION
TO FR3
COMP. 1:
CC4
1
24A CC3
L A R T U E N
2 N A F T U O
1 N A F T U O
D 1 4
C 1 4
2 X
1 X
2 R E T A E H
1 R E T A E H
N A F N I
D 4
C 4
2 P
1 P
D 3
C 3
2 P M O C
1 P M O C
1
24B
C G Y1
E V I L
LEDFAULT INDICATOR LOCK2
LOCK1
SYSTEM 2 I R P
SYSTEM1
Y2
ECB2
COMP. 2:
15B
R
JP 31C
YR3-1
31D
YR4-1
1
M2/14
L1/MP/L
L2/R/N
25A 2
(REMOVEJP3) SSPS2 M1/11
M2/14
L1/MP/L
L2/R/N
25B 2
1
ON/OFF
SSPS3 M1/11
M2/14
L1/MP/L
L2/R/N
25C 2
FUSE (ON/OFF)
TRANS3
P3_##
230v
21C
HP1
12v-0-12v ON
DIP
DIP SWITCH LED POWERI NDICATOR J_PROG
OLR3-1
HPS3 24C JP7 25C JP9
26C
27C
(HP1)
C E S
M1/11
(NOTE 5)
(REMOVE JP4) COMP. 3: 24C
W1 W2
SQMBO4 ( PIII )
SSPS1
HP2
21D
(HP2)
27D
LP1
22C
(LP1)
23C
LP2
22D
(LP2)
23D
OLR4-1
P
HPS4 24D
JP8 25D
JP10 26D
P
COMP. 4: 24D 1
(REMOVEJP7) SSPS4 M2/14
M1/11 L1/MP/L
L2/R/N
25D 2
(REMOVE JP8)
LPS3 P
LPS4 P
NOTE: 1. Refer to next page f or legend, notes & wiring diagram for optional items. 2. Refer to unit control box (inside panel) f or exact wiring diagram.
19
TYPICAL SCHEMATIC WIRING DIAGRAM (Quadruple compressor un its) UNIT STATUS (VFC) INDICATION CONNECTION UNIT ON / OFF COMP 1
FR1-2A
COMP 1
1
2
CC1A-1A
OPS1
28A
25A
2
240
2
26A
OPS1-1
2
AR1-1A
45
FR1 41A
X1 TOECB1
AR1
1
OIL PRESSURE SWITCH CONN.(AS APPLICABLE)
INDIVIDUAL COMP. ON/OFF/TRIP COMP 3 FR3 2 41C X1 TOECB2 FR3-2A
A 2 A 1 C C 56
46 55
UNIT ON
65
58
COMP 2
A 2 A 3 C C 66
CC2A-1A
(REMOVE JP5) OPS2 28B 2
68 25B
2
240
26B
OPS2-1
COMP3 ON
COMP1 ON
(REMOVE JP6) UNIT TRIP
COMP 2
FR2
FR1-1 44A FR2-1 44B FR3-1 44C FR4-1
COMP 4
2
41B
X2 TOECB1 43
COMP3 TRIP FR4 41D
COMP1 TRIP X2 TOECB2
FR2-2A
2
FR4-2A
OIL PRESSURE SWITCH CONN.(AS APPLICABLE)
44
COMP 3 A 2 A 2 C C 61
UNIT TRIP 60
A 2 A 4 C C 71
70
63
1
CC3A-1A
25C
COMP4 ON
COMP2 TRIP
COMP4 TRIP
TOATB 28A
COMP 1
28A
LPS5
NO
C
UL1
5A
2
CC4A-1A
OPTIONAL AHU INTER-CONNECTION
NC P
(REMOVE JP9) OPS4 28D 2
6A P
TOATB 28B
C
CB UL2
2
NC C
6B P
TOATB 28C
COMP 3
28C
CB11
CB12
UL6
NC
HC1
C
UL3
5C
2
BMC OLR
HC2
F 1 F 2 F 3 T T T
NO
C C C 1 L 2 L 3 L
B B B 1 7 2 7 3 7
A A A 1 7 2 7 3 7
LPS10 NO
LPS7
8 6 9 7 0 6
H 1 H 2 H 3 T T T
HTR1
HTR2
NC P
6C P
COMP 4
28B
(Stg. 1 Heating)
LPS11 NO C
TOATB 28D
(Stg. 2 Heating)
UL7
C
UL4
5B NC
2
C
6B
UL8
R
NC
1
31B
G
Y1
Y1
Y2
Y2
YR3
17A
YR3
C [LVTB]
17A
LPS5
NO
5A
HGS
LPS5 NO C
AR8-1 AR9-1 6E 6D
6C
HGS
NOTE: COMP1SHOULDALWAYSBELEAD COMPRESSOR. DIP SWITCHS2 SHOULDALWAYSBE SET TO"ON" POSITION.
Y3
STG4 COOLING
Y4 W1
STG2 HEATER
W2
2
NC
Y2
STG3 COOLING
STG1 HEATER
INFAN
P
Y1
STG2 COOLING
W2
TOECB (in cond. unit)
6C
STG1 COOLING
W1
HGS CONNECTION WITH COMP UNLOADER
AR8-1 AR9-1 6E 6D
G
W2
TOATB (in cond. unit)
P
NC
BMCONTROL
W1
2
C
ON= COMPRESSOR1 LEAD
ON= WITHPUMP DOWN OPTION S3 OFF= WITHOUT PUMP DOWN on-board programming function (always set to on) S4 LED INDICATORS FACTORY SETTINGS OF DIP SWITCHES Green power on/off indicator Red systemlock-out due to system fault DIP SWITCH# S1 S2 S3 S4 system1 fault diagnostic ON Yellow blinking slow - LPS1 ckt fault OFF blinking fast - HPS1 ckt fault note: system2 fault diagnostic Set dip switch #3 according to unit's option Orange blinking slow - LPS2 ckt fault (pump down or no pump down) blinking fast - HPS2 ckt fault
C
C
Y4
Y2 [LVTB]
LOADBALANCE OFF= (Comp1&2 Auto Lead Lag)
R
R
Y3
AR9
ON= TEST MODE ENABLE
S2
LVTB ( NOTE 8)
G
HGS CONNECTION W/O COMP UNLOADER AR8
OFF=TESTMODEDISABLE
(by others)
24Vac
C
P NOTE UL3&UL4CONNECTIONAPPLICALBLEFORCOMPWITH 3STEPS CAPACITY UNLOADING.
31A
S1
SWITCHING CONTACTS FROMT'STAT CONTROLLER OR DDC
TB1 (ECB) (REMOVE JUMPERJP)
LPS12 NO
Y1 [LVTB]
26D
NC
LPS8 NO
P
2
ECB DIP SWITCH SETTINGS & LEDINDICATORS
UL5
NC
5B P
TO POWER SUPPLY L1 L2 L3
LPS6 NO
28B
OPS4-1
240
LPS9 NO C
COMP 2
TOPOWER SUPPLY L1 L2 L3
26D
(REMOVEJP10)
(POWERANDCONTROL FORELECTRICHEATER&BLOWERMOTOR) TOPOWER SUPPLY L1 L2 L3
2
240
OPS3-1
25C
COMPRESSORUNLOADERCONNECTION(OPTIONAL)
2
73 COMP 4
COMP2 ON
OPS3
28C
HTR1 HTR2
CONTROLS 230Vac
14
BMC
19
AFS
29 30
OLR-1
HC2
28
NOTE: 1. Refer to next page f or legend, notes & wiring diagram for optional items. 2. Refer to unit control box (inside panel) f or exact wiring diagram.
20
TYPICAL SCHEMATIC WIRING DIAGRAM (Quadruple compressor un its) LEGEND
CONDENSERFAN MOTOR POWER, CONTROL CONNECTIONS : WITHSTANDARDAND FANCYCLINGOPTION
CAX090-100 L1 L2 L3
L1 L2 L3
CB6
6-FAN MOTORLAYOUT
L1 L2 L3
CB7
0 1 2 0 0 0 1 1 1
CB8
3 4 5 0 0 0 1 1 1
FMC1 A A A 5 6 7 3 3 3
6 7 8 0 0 0 1 1 1
FMC3
FMC2
C C C 5 6 7 3 3 3
FM1
B B B 5 6 7 3 3 3
FM3
FM1 T.O.P 12A
13A FM5 T.O.P
12E
TOECB1 OUTFAN2 FMC1A-1
** 1
13E
FM4
FMC5
11B
12F
TOECB2 OUTFAN2
2
13F
FMC2A-1 2
1
FMC2 2
FMC6 2
FM4 T.O.P FMC4 12D 13D
FMC6A-1
2
**
REFER OPTIONAL FCS CONNECTIONBELOW.
P FMC2A-1 1OB FCS2
13B FM6 T.O.P
**
1
FM6
12B
TOECB2 OUTFAN1
2
REFER OPTIONAL FCS CONNECTIONBELOW.
FM3 T.O.P FMC3 12C 13C
2
1
FMC2A-1 10C FCS3
11B
P FMC6A-1 10D FCS4
11D
P
FM3 T.O.P FMC4 12D 13D
2
P
CONDENSERFAN MOTOR POWER& CONTROL CONNECTIONS : STANDARD
CAX090-100 L1 L2 L3
L1 L2 L3
CB6
L1 L2 L3
CB7 3 4 5 0 0 0 1 1 1
0 1 2 0 0 0 1 1 1
FMC1
L O L R E T N N A P O C
CB9
6 7 8 0 0 0 1 1 1
FMC2
6-FAN MOTORLAYOUT
L1 L2 L3
CB8 9 0 1 0 1 1 1 1 1
FMC3
A IR H AN DLI NG U NI T
AFS
AIR FLOW SWITCH
AR
AUXILIARY RELAY
ATB
AUXILIARY TERMINAL BLOCK
BM
BLOWER MOTOR
BMC
BLOWER MOTOR CONTACTOR
CC
COMPRESSOR CONTACTOR
CCA
CC AUXILIARY CONTACT
CB
CIRCUIT BREAKER
C. HTR CRANKCASE HEATER
F F F 5 6 7 3 3 3
FM5
FMC1
FMC2A-1
11A
E E E 5 6 7 3 3 3
FM2 T.O.P
FM3 T.O.P FMC3 12C 13C
FMC1A-1 10A FCS1
FMC6
FMC5 D D D 5 6 7 FMC4 3 3 3
FM2
TOECB1 OUTFAN1
L O L R E T N N A P O C
AH U
FMC4
COMP
COMPRESSOR
ECB
ELECTRONIC CONTROL BOARD
F
FUSE
F CS
F AN C YC LI NG S WI TC H
FM
FAN MOTOR (CONDENSER)
F MC
FA N M OT OR CON TA CT OR
FMCA
FMC AUXILIARY CONTACT
FR
FAULT RELAY
HC
HEATER CONTACTOR
H PS
H IGH PR ES SU RE SW IT CH
HVTB
HIGH VOLTAGE TERMINAL BLOCK
JP
JUMPER
L1
LINE 1
L2
LINE 2
L3
LINE 3
L PS
L OW P RES SU RE S WI TC H
LUG
LUG GROUND
NTB
NEUTRAL TERMINAL BLOCK
OLR
OVER LOAD RELAY
OPS
O IL PR ES SU RE SW IT CH
P
PRESSURE
P DS
P UM P D OW N SO LE NOI D
S
DIP SWITCH (IN ECB)
SSPS
SOLID STATE PROTECTION SYSTEM
TOP
FM THERMAL OVERLOAD PROTECTION
TRANS TRANSFORER A A A 5 6 7 3 3 3
C C C 5 6 7 3 3 3
FM1
B B B 5 6 7 3 3 3
FM2
FM3
E E E 5 6 7 3 3 3
D D D 5 6 7 3 3 3
FM5
FM4
H H H 5 6 7 3 3 3
G G G F F F 5 6 7 5 6 7 3 3 3 3 3 3
FM7
FM8
FM6
UL
COMP. UNLOADER SOLENOID
UVM
UNDER VOLTAGE MONITOR
_ _ _ FIELD WIRING TERMINAL BLOCK OR TERMINATION POINT
TOECB1 OUTFAN1
FM3 T.O.P
FM1 T.O.P 12A
13A
TOECB2 OUTFAN1
FM7 T.O.P
FM5 T.O.P 12E
12C
12C
13E
12G
12H
TOECB1 OUTFAN2
FMC1
12B
2
TOECB2 OUTFAN2
FMC3
13B
12D
12D
13F
12H
SPLICE-CLOSED END
FMC2 2
NOTES 1. POWER SUPPLY, REFER TO UNIT NAMEPLATE.
FM8 T.O.P
FM6 T.O.P 12F
2
FM4 T.O.P
FM2 T.O.P
12H
FMC4
2. ANY WIRE REPLACEMENT SHOULD BE OF 900C OR ITS EQUIVALENT. USE COPPER CONDUCTOR WIRES ONLY.
2
CONDENSERFAN MOTOR POWER & CONTROL CONNECTIONS : WITHFAN CYCLING OPTION
CAX090-100 L1 L2 L3
L1 L 2 L3
CB6
CB7
0 1 2 0 0 0 1 1 1
FM1
FMC3 C C C 5 6 7 3 3 3
FM3
FMC4 D D D 5 6 7 3 3 3
FM2
FM4
FM5
L O L R E T N N A P O C
9 0 1 0 1 1 1 1 1
FMC5 E E E 5 6 7 3 3 3
6-FAN MOTORLAYOUT
CB9
6 7 8 0 0 0 1 1 1
FMC2 B B B 5 6 7 3 3 3
L1 L2 L3
CB8
3 4 5 0 0 0 1 1 1
FMC1 A A A 5 6 7 3 3 3
L1 L2 L3
FMC7 G G G 5 6 7 3 3 3
4. FUSED DISCONNECT SWITCH OR CIRCUIT BREAKER TO BE PROVIDED BY CONSUMER WITH RATING AS RECOMMENDED BY ZAMIL.
FMC6 F F F 5 6 7 3 3 3
FM7
3. POWER MUST BE SUPPLIED TO CRANKCASE HEATER FOR MINIMUM OF 12 HOURS PRIOR TO SYSTEM START UP. IF POWER IS OFF 6 HOURS OR MORE, CRANKCASE HEATER MUST BE ON FOR 12 HOURS BEFORE OPERATING THE SYSTEM. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN COMPRESSOR DAMAGE.
H H H 5 6 7 3 3 3
FM6
5. COMPRESSOR MOTORS ARE PROVIDED WITH SSPS OR INTERNAL LINE BREAK THERMAL OVERLOAD PROTECTION.
FM8
6. USE DISCONNECT TAB + OR SPLICE ONLY WHERE EVER REQUIRED FOR EXTENSION OF ORIGINAL WIRE. TOECB1 OUTFAN1
FM1 T.O.P
12A
13A
10A
TOECB2 OUTFAN1
FMC1
FM3 FCS1 T.O.P FMC3 11A 12C 13C FM5 T.O.P
12E
13E
10C
10B
2
FM4 FCS2 T.O.P FMC4 11B 12D 13D FM6 T.O.P
12F
13F
2
10D 2
FMC2
2
P
TOECB2 OUTFAN2
FMC5
FM7 FCS3 T.O.P FMC7 11C 12G 13G P
13B
2
P
TOECB1 OUTFAN2
FM2 T.O.P
12B
2
FMC6
FM8 FCS4 T.O.P FMC8 11D 12H 13H P
2
2
7. AT COMP. LOCKOUT CONDITION (FAULT), VOLTAGE ACROSS TERMINAL X1, X2 OF ECB & ATB #2 IS 230VAC. ALSO, COMP. LOCKOUT LIGHT (RED) IS ON. 8. USE SHIELDED TYPE CABLE, #18 AWG (MIN.) FOR LVTB FIELD WIRING. GROUND CONNECT AT BOTH ENDS. 9. COOLING OUTPUT SIGNAL FROM CONTROLLER SHOULD FOLLOW THE SEQUENCE: ON SEQUENCE - Y1 FIRST, THEN Y2. OFF SEQUENCE - Y2 FIRST, THEN Y1. 10.NEUTRAL LINE REQUIRED ON 380V-3Ph-60Hz POWER SUPPLY ONLY.
21
RIGGING INSTRUCTIONS ATTENTION TO RIGGERS Hook rigging sling thru holes in base rail, as shown below. Holes in base rail are centered around the unit center of gravity. Center of gravity is not unit center line. Ensure center of gravity aligns with the main lifting point before lifting. Use spreader bar when rigging, to prevent the slings from damaging the unit. CAUTION All panels should be in place when rigging. Care must be taken to avoid damage to the coils during handling. Insert packing material between coils & slings as necessary. MODELS: CAX020 - CAX030
PROPER CLEARANCE TO BE PROVIDED
MUST BE 3" NOMINAL PIPE THROUGH UNIT FOR SLINGS TO AVOID BASE DAMAGE
MODELS: CAX035 - CAX060 LIFT
PROPE R CLEARANCE TO BE PROVIDED
MUST BE 3" NOMINAL PIP E THROUGH UNIT FOR SLINGS TO AVOID BASE DAMAGE
MODELS: CAX070 - CAX170
22
INSTALLATION CLEARANCE WALL
B
A C
MODEL NUMBER
A
B
C
D
E
FIGURE - 1 STRAIGHT WALL
CAX020 - CAX030 1500 1500 1500 1500 1500 CAX035 - CAX060 1500 1500 2000 1500 1500 CAX070 - CAX170 2000 2000 3000 2000 2000
D
E FIGURE - 2 CORNER WAL L NOTE: 1. All dimensions are in mm. 2. If unit is installed in special pit, please observe the same tolerance for walls. Pit height should not exceed the unit height.
23
MOUNTING LOCATION MODELS: CAX020 - CAX030
MODELS: CAX035 - CAX060
MODELS: CAX070 - CAX080
MODELS: CAX090 - CAX120
MODELS: CAX150 - CAX170 DIMENSIONS
NOTE: All dimensions are in mm. Tolerance: ±2mm. 24
MODEL
A
CAX150
1281
CAX170
1603
LOAD DISTRIBUTION, kg. (ALUMINUM CONDENSER COIL) MODEL No. CAX020 CAX025 CAX030 CAX035 CAX040 CAX045 CAX050 CAX060 CAX070 CAX080
R1 137 152 194 259 278 285 299 307 464 505
R2 217 246 291 360 392 402 418 430 488 529
R3 191 205 255 324 342 350 363 372 504 545
R4 209 235 303 372 404 413 430 442 493 533
R5 -
R6 -
R7 -
R8 -
CAX090 CAX100 CAX120 CAX150 CAX170
495 507 527 488 547
495 507 527 488 547
507 519 540 450 510
507 519 540 450 510
400 409 430 523 584
400 409 430 523 584
408 467
408 467
LOAD DISTRIBUTION, kg. (COPPER CONDENSER COIL) MODEL No. CAX020 CAX025 CAX030 CAX035 CAX040 CAX045 CAX050 CAX060
R1 154 174 218 281 313 320 342 355
R2 234 268 315 382 427 437 461 478
R3 208 227 279 346 377 385 406 420
R4 226 257 327 394 439 448 473 490
R5 -
R6 -
R7 -
R8 -
CAX070 CAX080 CAX090 CAX100 CAX120 CAX150 CAX170
513 569 539 551 585 539 610
537 593 539 551 585 539 610
553 609 551 563 598 501 573
542 597 551 563 598 501 573
444 453 488 574 647
444 453 488 574 647
459 530
459 530
R1
R2
R1
R2
R1
R3
R5
R1
R3
R5
R7
R3
R4
R3
R4
R2
R4
R6
R2
R4
R6
R8
25
INSTALLATION & START-UP INSTRUCTIONS SAFETY CONSIDERATIONS Improper installation, service, maintenance or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property damage. Check with your nearest Zamil dealer/sales office for information or assistance. Warning: Before installation or servicing the system, always turn off main power supply. Electrical shock can cause personal injury or death.
SCROLL COMPRESSOR ROTATION Scroll compressors are designed to operate in single direction only. Hence, care has to be taken to ensure correct rotation when the system is operated. Verification of correct rotation is by observing that the suction pressure drops and discharge pressure rises when compressor run. Reverse rotation results in abnormal sound, as well as, substantially low current draw and by interchanging power supply wire L1 & L3 will correct this problem.
INSTALLATION STEP-1: Check equipment and job site Unpack unit and move to final location taking care not to damage the unit. Remove screws holding the unit to wooden pallet and after removing wooden pallet, refix the screws.
STEP- 2: Installation on a solid, level mountin g pad When installing, allow sufficient space for airflow clearance, wiring, refrigerant piping and service. Allow 48" (1219 mm) clearance all around and no obstruction above unit for proper airflow. Double the service access when multiple units are installed at one location. On rooftop applications, locate unit at least 6" (152 mm) above roof surface. Place unit above a load-bearing wall, isolate unit and piping set from structure. Use 4"x4"x1" thick rubber/cork mounting pads. Arrange supporting members to adequately support unit and minimize transmission of vibration to building.
STEP-3: Piping connections Outdoor units should be connected to indoor units using field-supplied piping of refrigerant grade and correct size. The liquid and suction line diameters can be determined from the physical data table. For piping requirements beyond 50 ft (15.24 m), obtain information from your nearest Zamil dealer/sales office. It is advisable to size piping according to recommended ASHRAE methods. Install piping according to refrigeration standard practice. Run refrigerant pipes as directly as possible, avoiding unnecessary turns and bends. Install refrigerant pipes carefully to prevent damaging the suction pipe insulation and vibration transmission to the structure. Compressors are already charged with the required amount of lubricant. There is no need to charge in the field. Make sure that no air & moisture enter the system as easter oil are hygroscopic in nature. The whole system should be leak tested and evacuated before charging the refrigerant.
Outdoor unit conn ected to factory matched indoor uni t Outdoor unit contains holding charge only. The correct system refrigerant charge for operation is given in the unit nameplate & physical data table when connected with up to 25 ft (7.62 m) of field-supplied piping. Check refrigerant charge for maximum efficiency.
Sweat con nection Use refrigerant grade piping. Service valves are closed from factory when shipped and ready for brazing. After wrapping the service valve with a wet cloth, the piping set can be brazed to service valve using either silver rod or silfos rod brazing material. When brazing completed, refrigerant piping and indoor coil are now ready for leak testing. This check should also include all field and factory brazed joints. Warning: Relieve all pressure before refrigerant system repair or final unit disposal to avoid personal injury or death. Use service ports and open all valves. 26
ELECTRICAL STEP 1: INSTALLATION A) Please ensure power supply to the unit is as per unit nameplate (Volts/Ph/Hz) requirements. Caution: Operation of the unit on improper power supply will result in damage to the unit. Note: Use copper wires of proper rating for all field wiring. Warnin g: Before servicing or ins tallation o f the unit , always TURN OFF all power to t he unit. There may be more than one disconnect switch. Ensure all of them are turned off. Electrical shock can cause personal injury or death.
B) Ground & power wires Connect power wires to terminal block per wiring diagram. Connect ground wire to the ground lug inside the control box. C) Control wiring between outdoor & ind oor unit Use 16 gauge color-coded wire between the indoor and outdoor units (control wiring).
STEP 2: START-UP 1) Energize crankcase heater for a minimum of 12 hours prior to the system start-up. To energize crankcase heater only, set thermostat to OFF position and close electrical disconnect switch to the outdoor unit. 2) Fully open liquid/suction service valves. 3) Close electrical disconnect switch to energize the system. 4) Set room thermostat to desired temperature.
TYPICAL HIGH AND LOW VOLTAGE FIELD WIRING CONNECTIONS
SWITCHING CONTACTS FROM T'STAT CONTROLLERORDDC
SYSTEM DESIGN THESE CONDENSING UNIT SYSTEM HAS BEEN DESIGNED BASED ON THE FOLLOWING:
• • •
Intended for outdoor installation with free air intake and discharge. Minimum outdoor operating air temperature during cooling with low ambient operation option is 550F. Maximum outdoor operating air temperature during cooling is 130 0F. 27
