Chigo Inverters Manual

SERVICE

MANUAL

DC Inverter Split Air-Condition Unit

Table of Contents 1.

The model and the air conditioning unit parameters.................................................... parameters...........................................................1 .......1

2.

Units operating working conditions and temperature range ................................... ............................................8 .........8

3.

Units characteristic characteristic................................... ...................................................................... ....................................................................... ............................................1 ........11 1

4.

Indoor and outdoor units size ........................................................................... ...............................................................................................26 ....................26

5.

Indoor and outdoor unit explosion diagram and spare spare parts list .................................. .....................................30 ...30

6.

The analysis of indoor malfunction code ................................................................... ............................................................................35 .........35

7.

The analysis of the complete units malfunction code................................ code .........................................................50 .........................50

-1-

1

The model and the air conditioning unit parameters

1.1 the model.

-2-

1.2. The air conditioner’s parameter.

-3-

-4-

-5-

-6-

-7-

-8-

-9-

2 2.1

RATING RATING CONDITIONS and Operating Limits RATING CONDITIONS Standard Standard conditions in accordance with ISO 5151, and EN 14511. Cooling: Indoor: 27℃ DB 19℃ WB Outdoor:35℃ DB 24℃ WB Heating: Indoor: 20℃ DB 15℃ WB Outdoor: 7℃ DB 6℃ WB

2.2

Operating Limits

Outdoor Cooling Heating

Voltage

Upper limit

(DB)

46℃

Lower limit

(DB)

5℃

Upper limit

(DB)

24℃

Lower limit

(DB)

-15℃

1PH

220-240V

- 10 -

3 ☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆

Units characteristic R410a Low noise level

Wide operating range with outdoor air air temperatures, cooling:5-46℃,heating:-15-24℃ High efficiency and energy saving Air filters easy to remove and clean

Twin Twin rotary compressor compressor Auto-restart after a power supply blackout Single-phase power supply thanks to DC inverter technology low consumption Dynamic refrigerant control by DC inverter compressor and circuit, electronic valve and fuzzy logic managed by a powerful micro program

☆ EEV for each indoor unit

- 11 -

- 12 -

The compressors energy consumption graph .

COP (W/W)/2ND

The compressor’s condensing pressure graph .

- 13 -

Indoor Units Data Indoor Units Capacity For 2.0KW

Capacity

Model

2.0KW

CMV-V20G3A-M75/81/84/85/87/88/95/96

Cooling Capacity (KW)---Run Model (Unit A,B,C or D),220-240V,Indoor fan at high speed 0

INDOOR ENTERING AIR DB/WB TEMPERATURE [ C] OUTDOOR ENTERING AIR DB TEMPERATURE 0

[ C]

DATA DATA

-10 - 20 (protection range) 25

30

35

40

46

TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI

22/15

24/17

1.94 1.72 0.49 1.84 1.67 0.55 1.74 1.63 0.60 1.66 1.58 0.66 1.54 1.53 0.73

27/19

29/21

32/23

80 - 110 % of nominal 80 - 105 % of nominal 25 - 50 % of nominal 2.06 2.18 2.32 1.75 1.79 1.82 0.50 0.51 0.51 1.96 2.10 2.22 1.70 1.75 1.79 0.55 0.56 0.57 1.88 2.00 2.12 1.67 1.70 1.73 0.61 0.62 0.63 1.78 1.90 2.04 1.62 1.65 1.70 0.67 0.68 0.69 1.66 1.80 1.92 1.56 1.60 1.63 0.74 0.74 0.76

2.44 1.85 0.53 2.34 1.82 0.58 2.26 1.77 0.64 2.16 1.73 0.69 2.04 1.68 0.76

Heating Capacity (KW)---Run Model (Unit A,B,C or D),220-240V,Indoor fan at high speed 0

ID COIL ENTERING AIR DB TEMPERATURE [ C] OD COIL ENTERING AIR DB/WB

DATA DATA

15

20

25

TC

1.54

1.42

1.32

PI

0.40

0.44

0.48

TC

1.70

1.58

1.49

PI

0.48

0.52

0.57

TC

1.82

1.73

1.61

PI

0.55

0.59

0.63

TC

1.90

1.80

1.68

PI

0.58

0.62

0.66

TC

1.94

1.82

1.73

TEM PERATU RE 0

[ C] -15/-16

-10/-12 -7/-8 -1/-2

2/1

- 14 -

7/6

10/9

15/12

15

24

(Protection Range)

PI

0.60

0.64

0.68

TC

2.50

2.40

2.30

PI

0.63

0.67

0.71

TC

2.64

2.54

2.42

PI

0.67

0.71

0.75

TC

2.78

2.69

2.57

PI

0.70

0.74

0.78

TC

85 - 105 % of nominal

PI


Capacity Correction Factors Cooling Capacity Ratio Vs. Outdoor Temperature

Cooling Capacity Correction Factor 1.4 o 1.2

32/23 29/27 27/19 24/17 22/15

i t a R

1 0.8 y t i 0.6 c a p 0.4 a C

0.2 0 25

30

35

40

45

Outdoor Temperature (deg C) Heating Capacity Ratio Vs. Outdoor Temperature

Heating Capacity Correction Factor 1.4 o 1.2

i t a R

1 0.8 y t i 0.6 c a p 0.4 a C

15 20 25

0.2 0 -15

-10

-5

0

5

10

15

Outdoor Temperature (deg C)

- 15 -

20

Indoor Units Capacity For 2.5KW

Capacity 2.5KW

Model CMV-V25G3A-M75/81/84/85/87/88/95/96

Capacity (KW)---Run Model (Unit A,B,C or D),220-240V,Indoor fan at high speed 0


[ C]

DATA DATA

-10 - 20 (protection range) 25

30

35

40

46

TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI

22/15

24/17

2.42 1.72 0.58 2.30 1.67 0.65 2.18 1.63 0.71 2.07 1.59 0.78 1.93 1.53 0.86

27/19

29/21

32/23


3.05 1.86 0.62 2.93 1.81 0.69 2.82 1.77 0.76 2.70 1.73 0.82 2.56 1.67 0.91



DATA DATA

15

20

25

TC

1.92

1.77

1.65

PI

0.49

0.54

0.59

TC

2.13

1.98

1.86

PI

0.59

0.64

0.70

TC

2.28

2.16

2.01

PI

0.67

0.72

0.77

TC

2.37

2.25

2.10

PI

0.71

0.75

0.80

TC

2.43

2.28

2.16

PI

0.73

0.78

0.83

TEM PERATU RE 0

[ C] -15/-16

-10/-12 -7/-8 -1/-2

2/1

- 16 -

7/6

10/9

15/12

TC

3.12

3.00

2.88

PI

0.77

0.82

0.87

TC

3.30

3.18

3.03

PI

0.82

0.87

0.92

TC

3.48

3.36

3.21

PI

0.86

0.90

0.96

15-24

TC


(Protection Range)

PI


LEGEND

TC – Total Cooling Capacity, kW SC – Sensible Capacity, Kw PI – Power Input, kW o

WB – Wet Bulb Temp., ( C) DB – Dry Bulb Temp., ( C) ID – Indoor o

OD – Outdoor Capacity Correction Factors Cooling Capacity Ratio Vs. Outdoor Temperature


32/23 29/27 27/19 24/17 22/15

i t a R

1 0.8 y t i 0.6 c a p 0.4 a C

0.2 0 25

30

35

40

45


- 17 -

Heating Capacity Ratio Vs. Outdoor Temperature


i t a R

1 0.8 y t i 0.6 c a p 0.4 a C

15 20 25

0.2 0 -15

-10

-5

0

5

10

15

20


Indoor Units Capacity For 3.5KW Indoor Units Capacity For 3.5KW

Capacity 3.5KW

Model CMV-V35G3A-M75/81/84/85/87/88/95/96 CMV-V35G3A-P84/94/98



[ C] -10 - 20 (protection range) 25

30

35

40

46

DATA DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI

22/15

24/17

3.40 3.03 0.86 3.22 2.94 0.96 3.05 2.88 1.06 2.91 2.79 1.16 2.70 2.70 1.28 - 18 -

27/19

29/21

32/23


4.27 3.27 0.93 4.10 3.21 1.02 3.96 3.12 1.12 3.78 3.06 1.22 3.57 2.97 1.34



DATA DATA

15

20

25

TC

2.56

2.36

2.20

PI

0.67

0.73

0.80

TC

2.84

2.64

2.48

PI

0.80

0.87

0.94

TC

3.04

2.88

2.68

PI

0.91

0.98

1.04

TC

3.16

3.00

2.80

PI

0.95

1.02

1.09

TC

3.24

3.04

2.88

PI

0.99

1.05

1.12

TC

4.16

4.00

3.84

PI

1.04

1.11

1.18

TC

4.40

4.24

4.04

PI

1.11

1.18

1.24

TC

4.64

4.48

4.28

PI

1.17

1.23

1.30

TEM PERATU RE 0

[ C] -15/-16

-10/-12 -7/-8 -1/-2

2/1

7/6

10/9

15/12

15

24

(Protection Range)

TC


PI




32/23 29/27 27/19 24/17 22/15

i t a R

1 0.8 y t i 0.6 c a p 0.4 a C

0.2 0 25

30

35

40

45


- 19 -

Heating Capacity Ratio Vs. Outdoor Temperature


i t a R

1 0.8 y t i 0.6 c a p 0.4 a C

15 20 25

0.2 0 -15

-10

-5

0

5

10

15

20

Outdoor Temperature (deg C) Indoor Units Capacity For 5.0KW

Capacity

Model

5.0KW

CMV-V50G3A-P75/81/84/85/87/88/95/96



[ C] -10 - 20 (protection range) 25

30

35

40

46

DATA DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI

22/15

24/17

4.85 4.55 1.23 4.60 4.41 1.37 4.35 4.32 1.51 4.15 4.19 1.65 3.85 4.05 1.83 - 20 -

27/19

29/21

32/23


6.10 4.91 1.33 5.85 4.82 1.47 5.65 4.68 1.61 5.40 4.59 1.75 5.10 4.46 1.92



DATA DATA

15

20

25

TC

3.71

3.42

3.19

PI

0.97

1.06

1.16

TC

4.12

3.83

3.60

PI

1.16

1.26

1.37

TC

4.41

4.18

3.89

PI

1.32

1.42

1.51

TC

4.58

4.35

4.06

PI

1.38

1.48

1.58

TC

4.70

4.41

4.18

PI

1.43

1.53

1.63

TC

6.03

5.80

5.57

PI

1.51

1.61

1.71

TC

6.38

6.15

5.86

PI

1.61

1.71

1.80

TC

6.73

6.50

6.21

PI

1.69

1.79

1.88

TEM PERATU RE 0

[ C] -15/-16

-10/-12 -7/-8 -1/-2

2/1

7/6

10/9

15/12

15-24

TC


(Protection Range)

PI


- 21 -



32/23 29/27 27/19 24/17 22/15

i t a R

1 0.8 y t i 0.6 c a p 0.4 a C

0.2 0 25

30

35

40

45

Outdoor Temperature (deg C) Heating Capacity Ratio Vs. Outdoor Temperature


i t a R

1 0.8 y t i 0.6 c a p 0.4 a C

15 20 25

0.2 0 -15

-10

-5

0

5

10

15


- 22 -

20

Capacity Correction Factor Due to Tubing Tubing Length (One Way) Cooling

Heating

- 23 -

Pressure Curve Model

CMV-V40H13AD

CMV-50V3A-E2

CMV-V71T3AT

Cooling--------------Test Model

Heating-----------Test Model

- 24 -

CMV-V80T3AQ

ELECT RICAL D ATA Model

CMV-V40H13AD

Power Supply

220-240V 1PH 50Hz

Connected to

Outdoor

Maximum Current

8A

＜15A

Inrush Current Starting Current

1A

Circuit breaker

20A

Power supply wiring - No. x cross section

3×1.5 mm2×6680mm

Interconnecting Interconnecting cable - No. x cross section

4×1.0 mm2×6300mm

Model

CMV-50V3A-E2

Power Supply

220-240V 1PH 50Hz

Connected to

Outdoor

Maximum Current

11 A

＜35A


1A

Circuit breaker

20A


3×2.5 mm2×6480mm


4×1.0 mm2×6300mm

Model

CMV-V52E23AT

Power Supply

220-240V 1PH 50Hz

Connected to

Outdoor

Maximum Current

11A

＜35A


1A

Circuit breaker

20A


3×2.5 mm2×6480mm


4×1.0 mm2×6300mm

Model

CMV- V71T3AT

Power Supply

220-240V 1PH 50Hz

Connected to

Outdoor

Maximum Current

16A

＜35A


2A

Circuit breaker

20A


3×2.5 mm2×6480mm


4×1.0 mm2×6200mm - 25 -

Model

CMV-V80T3AQ

Power Supply

220-240V 1PH 50Hz

Connected to

Outdoor

Maximum Current

16A

＜35A


2A

Circuit breaker

20A


3×2.5 mm2×6480mm


4×1.0 mm2×16100mm

Note: Inrush current is the current when power is up. (charging the DC capacitors at outdoor unit controller). Starting current is the current when starting the compressor

- 26 -

4.

4.1

OUTLINE DIMENSI ON OF OUTDOOR AND INDOOR

Outline dimension of outdoor Units

CMV-V40H13AD

CMV-50V3A-E2/ CMV-V52E23AT CMV-V52E23AT

- 27 -

CMV- V71T3AT/ CMV-V80T3AQ

- 28 -

Dimension’s

the body’s dimension

mounting dimensions

Code A

B

C

D

E

CMV-V40H13AD

845

304

542

510

278

CMV-50V3A-E2

900

352

590

505

310

CMV-V52E23AT

900

352

590

505

310

900

388

837

600

358

outdoor unit’s type

CMV-V71T3AT/ CMV-V80T3AQ

unit：mm

- 29 -

Dimension’s

the body’s dimension

mounting dimensions

Code indoor

A

B

C

D

E

F

CMV-V20G3A/MXX CMV-V20G3A/M XX

800

280

195

490

/

/


800

280

195

490

/

/


800

280

195

490

/

/

CMV-V35G3A/PXX CMV-V35G3A/P XX

900

296

220

583

257.5

257.5

CMV-V50G3A/PXX CMV-V50G3A/P XX

900

296

220

583

257.5

257.5

unit’s type

- 30 -

5

The outdoor unit structure exploded view .

5.1

outdoor unit :CMV-V40H13AD

NO.

description

name

number

1

前网罩

Front Grill

1

2

面

Front Plate

1

Axial flow fan

1

Motor

1

3 4

板

轴流风轮电

机

5

电机支架

Motor support

1

6

冷凝器

Condenser

1

7

顶盖板

Top panel

1

8

电器盒

Electric box

1

9

背网

Rear Grill

1

10

右侧板

Right panel

1

11

抽手

handle

1

12

阀座板

Valve installation plate

1

13

A 机 DN4 DN4 阀

DN4 DN4 valv valve e

1

14

A 机 DN8 DN8 阀


1

15

B 机 DN4 DN4 阀


1

16

B 机 DN8 DN8 阀


1

17

毛细管组件

Capillary Assy

1

18

电子膨胀阀

Electronic expansion valve

2

19

四通阀组件

Four-way valve assembly

1

20

汽液分离器

Steam liquid segregator

1

21

压缩机

Compressor

1

22

中隔板

Partition board

1

23

底盘

Base

1

31

5.2

o u td o or un i t : CMV-5 CMV-50V3 0V3A-E A-E2/ 2/ CMV-V5 CMV-V52E2 2E23A 3AT T

32

NO.

description

name

number

1

前网罩

front grill

1

2

前面板

front panel

1

3

风叶

fan

1

4

室外电机

motor

1

5

电机支架组件

motor bracket assemble

1

6

左护网

left grill

1

7

左侧立柱

left pole

1

8

顶盖板

top cover

1

9

背网

rear grill

1

10

冷凝器

condenser

1

11

四通阀

4-way valve

1

12

消音器

muffle

1

13

过滤器

filter

1

14

控制器

controllor

1

15

电控盒盖

control box cover

1

16

电控盒

electrical control box

1

17

A 机 DN8 截止阀

DN8 valve for A unit

1

18

A 机 DN4 截止阀

DN4 valve for A unit

1

19

B 机 DN8 截止阀

DN8 valve for B unit

1

20

B 机 DN4 截止阀

DN4 valve for B unit

1

21

阀座板

valve installation plate

1

22

大抽手

handle

1

23

右侧板

right panel

1

24

电子膨胀阀

expand valve

2

25

压缩机

compressor

1

26

压缩机胶垫

compressor pad

1

27

中隔板

partition board

1

28

底盘组件

base assemble

1

33

5.3

outdoor unit : CMV-V71T3AT/ CMV-V80T3AQ

34

NO.

description

name

number

1

顶盖板

top panel

1

2

电控盒

electric box

1

3

背网

rear Grill

1

4

中隔板

partition board

1

5

四通阀

four-way valve

1

6

电子膨胀阀

electronic expansion expansi on valve

1

7

干燥过滤器

desiccation filter

1

8

右侧板

right panel

1

9

抽手

large handle

1

10

阀座板

valve installation plate

1

11

油分离器

oil separator

1

12

高压储液罐

high-pressure tank

1

13

压缩机

compressor

1

14

底盘

base

1

15

冷凝器

condenser

1

16

电机支架

motor support

1

17

电机

DC motor

1

18

轴流风叶

axial flow fan

1

19

前网罩

front Grill

1

20

面板

front Plate

1

21

左护网

left protect net

1

22

左立柱

left panel

1

23

汽液分离器

vapor-liquid vapor-liquid separator

1

24

后面板

back panel

2

25

DN10 截止阀

DN10 cut-off valve

1

26

DN8 截止阀

DN8 cut-off valve

1

27

电控盒支撑板

electronic control box support plate

1

28 29

小抽手前维修板

small hand-pumped

1 1

front maintenance board

35

6 The analysis of indoor malfunction code internal wiring get loose, which will cause malfunction.

indoor detailed malfunction 1.when indoor unit live wire is disconnected its lamp panel can’t display.

Live wire is off 。

2.when the transformer’s secondary and primary disconnect or indoor fuse is off the indoor unit lamp panel can’t display.

Transformer secondary is off

Transformer primary is off The relevant socket

36

transfomer

primary

Indoor unit fuse is off.

The indoor unit fuse

The condition that the lamp panel can’t display。

3.

1 when the indoor null line is off the system displays F1 code 2 when indoor communication wire is off the system also displays F1 code

The inserted slice to null line

The indoor unit null line is off 。

37

（2）the indoor communication wire is off.

Communication wire socket.

the indoor lamp panel displays F1 code.

4. when indoor fan mainline or feedback wire is off the indoor lamp panel displays F4 code. After directly insert it well To restart the unit to recover normal .

Indoor fan mainline is off 。 The relevant socket with indoor fan mainline

38

indoor fan feedback wire is off 。

the relevant socket with indoor feedback wire 。

The lamp panel displays F4 code.

5.when indoor sensor has the problem, the lamp will display F 2 F3 code. When indoor coil outlet , inlet and middle temperature sensor appear malfunction, the lamp panel displays F3 code; when indoor temperature sensor appears fault, the lamp panel shows F2 fault code.

Indoor temperature sensor plug

the relevant socket of indoor temperature sensor plug

39

The lamp panel alternately displays F2,F3 fault code.

6.when outdoor temperature sensor is off or loose contact code.

the indoor lamp panel displays F6 fault

the relevant socket of outdoor temp. sensor.

The outdoor temperature sensor is off or loose contact.

40

The indoor lamp panel displays F6 fault code.

7.when the system appears mode conflict

the indoor lamp panel shows d1 code.

the indoor lamp panel shows d1 code.

8.when the system is i n the defrosting condition condition

The lamp panel displays dF code.

The lamp panel displays dF code.

41

The outdoor electrical control fault code of the America 12K model . 1.the outdoor module temperature sensor is off or loose contact

the lamp panel shows F6 code.

the outdoor module temperature sensor is off or loose contact . the relevant socket with the outdoor module temperature sensor plug .

The lamp panel shows F6 code .

2.The outdoor unit DC busbar voltage is abnormal

the lamp panel shows F7code.

The P、 N power wire are off .

42

The lamp panel shows F7code. F7c ode.

3.the outdoor module drive wire is off

the lamp panel shows FC code .

The outdoor module drive wire is off . The matching socket with the outdoor module drive wire

The matching socket with the outdoor module drive wire .

The outdoor module drive wire is off .

43

The lamp panel shows FC code .

4 the wave filtering board and mainboard power wire is off or loose contact the lamp panel shoes F1 code .

the wave filtering board and mainboard power wire is off or l oose contact

The matching socket with the wave filtering board and mainboard power wire

the lamp panel shoes F1 code .

44

5. the evaporator middle temperature and condenser middle temperature sensor is off displays P8 code .

the lamp panel

the evaporator middle temperature and condenser middle temperature sensor is off

the lamp panel displays P8 code

45

th

The 67 style indoor lamp panel

The timing lamp

The turbo lamp

The running lamp

The indoor unit faulty display: Faulty contents Communication fault Indoor fan fault Indoor temp. sensor fault Indoor coil outlet temp. sensor fault Indoor coil inlet temp. sensor fault Indoor coil middle temp. sensor fault Mode conflict Defrosting or anti cold air

Trouble display The running lamp lightens all the time，the turbo lamp lightens 2 times ，and then extinguish 2 seconds。 The running lamp lightens all the time，the turbo lamp lightens 5 times，and times，and then extinguish 2 seconds。 The running lamp lightens all the time，the turbo lamp lightens 3 times ，and then then extinguish 2 seconds。 seconds。 The running lamp lightens all the time，the turbo lamp lightens 4 times，and times，and then extinguish 2 seconds。 The running lamp lightens all the time，the turbo lamp lightens 4 times ，and then then extinguish 2 seconds。 seconds。 The running lamp lightens all the time，the turbo lamp lightens 4 times ，and then then extinguish 2 seconds。 seconds。 The running lamp lamp lightens 1 time ，and then extinguish 1 second。 The timing lamp lightens 1 time ，and then extinguish 1 second。

The outdoor unit faulty display: Faulty contents

Trouble display

the outdoor unit transducer module protection faulty

The timing lamp lightens all the time，the turbo lamp lightens 2 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the turbo lamp lightens 3 times ，and then extinguish 2 seconds。

over current of outdoor unit discharge temp. of compressor too high, outside ambient temp. too high, switch temp. of compressor crust cut off, temp. of module too high The outdoor unit DC busbar voltage is abnormal lack refrigerant or reverse valve fault outdoor sensor fault outdoor unit drive fault, start compressor failure

The timing lamp lightens all the time，the turbo lamp lightens 4 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the turbo lamp lightens 7 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the turbo lamp lightens 8 times ，and then extinguish 2 seconds。 The running lamp lightens all the time，the turbo lamp lightens 7 times ，and then extinguish 2 seconds。 The running lamp lightens all the time，the turbo lamp lightens 6 times ，and then extinguish 2 seconds。

46

th

The 85 style indoor lamp panel

The timing lamp

The sleeping sleepi ng lamp

The running lamp

Faulty contents Communication fault Indoor fan fault Indoor temp. sensor fault Indoor coil outlet temp. sensor fault Indoor coil inlet temp. sensor fault Indoor coil middle temp. sensor fault Mode conflict Defrosting or anti cold air

Trouble display The timing lamp lightens all the time，the sleeping lamp lightens 2 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the sleeping lamp lightens 5 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the sleeping lamp lightens 3 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the sleeping lamp lightens 4 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the sleeping lamp lightens 4 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the sleeping lamp lightens 4 times ，and then extinguish 2 seconds。 The timing lamp lightens 1 time ，and then extinguish 1 second。 The running lamp lamp lightens 1 time ，and then extinguish 1 second。

Faulty contents

Trouble display

the outdoor unit transducer module protection faulty

The running lamp lightens all the time，the sleeping lamp lightens 2 times ，and then extinguish 2 seconds。 The running lamp lightens all the time，the sleeping lamp lightens 3 times ，and then extinguish 2 seconds。

over current of outdoor unit discharge temp. of compressor too high, outside ambient temp. too high, switch temp. of compressor crust cut off, temp. of module too high The outdoor unit DC busbar voltage is abnormal lack refrigerant or reverse valve fault outdoor sensor fault outdoor unit drive fault, start compressor failure

The running lamp lightens all the time，the sleeping lamp lightens 4 times ，and then extinguish 2 seconds。 The running lamp lightens all the time，the sleeping lamp lightens 7 times ，and then extinguish 2 seconds。 The running lamp lightens all the time，the sleeping lamp lightens 8 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the sleeping lamp lightens 7 times ，and then extinguish 2 seconds。 The timing lamp lightens all the time，the sleeping lamp lightens 6 times ，and then extinguish 2 seconds 47

6.3 The malfunction of indoor and outdoor unit 1 The common malfunction code analysis and solutions! The code

fault

The fault content

F1

The communication fault

F2

The indoor temperature sensor fault

F3

The indoor coil temperature sensor fault

F4

Indoor PG motor fault (tap motor hasn’t so breakdown )

F5

IPM protection

F6

The outdoor sensor fault

The reason of fault and its solutions 1、The communication wire is broken off. Please check whether the wire is disentwined ; 2、Please check whether the electrical control board is damaged. It should be replaced when it is damaged; 3、Please check whether the power ground wire is reliable; 4、Please check whether the unit is abnormal caused by the external interference. If it is, then find the interfering sources, and remove them. 1 、 Check whether the resistance of sensor is normal, otherwise replace it; 2、Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board, repair repair it if there is any above; above; 3、When the 1 and 2 are both normal, then the component or integrated circuit is damaged, the electric control board should be replaced. 1 、 Check whether the resistance of sensor is normal, otherwise replace it; 2、Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board ,repair ,repair it if there is any above; above; 3、When the 1 and 2 are both normal, then the component or integrated circuit is damaged, the electric control board should be replaced. 1、Check whether the contact of the plug of the motor wire and socket is well. Please make sure it is well contacted; 2 、 Check whether the indoor motor has damaged, the motor should be replaced when it is da maged; 3 、 Check whether the controllable silicon and other components on the electric control board have damaged ， replace the controllable silicon or electric control board when they are damaged; 4、Check whether the indoor fan is unobstructed when running, please fix the indoor fan again when it is obstructed. 1、Check whether the supply voltage is out of ranging fr om 150 to 270V(overvoltage and undervoltage protection); Measuring the actual current, if the current is greater than the rated current of 2A,it is over-temperature protection; protection; If the above are normal, that is IPM module internal circuit fault protection, so please replace t he IPM module. 1 、 Check whether the resistance of sensor is normal, otherwise replace it; 2、Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board, repair repair it if there is any above; above; 3、When the 1 and 2 are both normal ,then the component or integrated circuit is damaged, the electric control board should be replaced. 48

F7

The outdoor coil temperature sensor fault （Including the mid-point of tube、 inspiratory gas）

F9

Exhaust gas sensor failure

FA

FC

FF

FH

The communication fault between the wire controller and the indoor PCB

outdoor unit driving fault, starting compressor failure

The outdoor DC motor fault

The indoor EEPROM error

dF

Defrosting Defrostin g state

dI

Mode conflict conflic t

unit

1 、 Check whether the resistance of sensor is normal, otherwise replace it; 2、Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board, repair repair it if there is any above; above; 3、When the 1 and 2 are both normal, then the component or integrated circuit is damaged, the electric control board should be replaced. 1 、 Check whether the resistance of sensor is normal, otherwise replace it; 2、Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board, repair repair it if there is any above; above; 3、When the 1 and 2 are both normal, then the component or integrated circuit is damaged, the electric control board should be replaced. 1、 check whether the wire controller’s connecting wire is short circuit or loose, please make it connect well; 2、 Check the connecting line 、 wire controller 、 PCB whether they are loose or have a bad contact. Please make them have a good contact. 1、Turn on the power again, and then check whether the operation of the compressor is normal; 2、Check whether the connection of the compressor is correct correct or reliable, otherwise repair it; 3、Check whether the components on the electric control board have been damaged, if they are damaged, the components or the electric control board should be replaced.; 4、Check whether the connecting wires are disentwined between the Intelligent Power Module board and the main board, otherwise otherwise make the wires connect connect firmly . 1、Check the resistance value of the DC motor port. If i t is short circuit, please change the DC motor; 2 、 Check the voltage value of the DC motor port VCC(15Vdc) 、 Vdm(340Vdc),please Vdm(340Vdc),please change the PCB b oard if the voltage values are abnormal; 3、if all the voltage values of the DC motor port are normal ，the Vsp voltage（0~5v）is also ok ,it shows that the inner PCB board of the DC motor is damaged, then change the DC motor. 1、Check whether there are false weld and bad contact etc between the EEPROM chip block and the electronic control board ; 2、Check whether the EEPROM chip pin is broken foot and the direction of installation is in line with the EEPROM block; 3、When the procedure of EEPROM chip and itself have fault it will appear the code FH. That is the need to replace the EEPROM chip. The unit is in defrosting state，that is normal. When the running mode mode for for No.1 indoor unit unit is different different from No.2 indoor unit, the dF is displayed. 49

The code

fault

The fault content

The reason of fault and solution

1、 Check whether the ambient temperature is over the range

P1

P2

Indoor coil temperature over-temperature protection for heating (thermal overload), outdoor coil temperature overheating protection for cooling (cooling overload)

The outdoor unit inverter module protection fault

P3

Over current of outdoor unit

P4

discharge temperature of compressor is too high, the outside ambient temperature over-temperature, switch off the compressor shell temperature, module temperature over-temperature

of air-conditioning running temperature ; 2、 Check whether the indoor coil t emperature is higher than or equal to 63 degrees when heating and check whether the outdoor coil t emperature is higher than or equal to 65 degrees when cooling, it will appear protection if the value is over the a bove; 3、 Check whether the parameters of indoor and outdoor coil temperature sensors are normal, if abnormal, please replace the sensors; 4、 If the above are normal, check whether the main control board output parameters parameters are normal, if abnormal, please replace the main control board. compressor is reliable, 1、Check whether the connection of the compressor otherwise connect firmly again; 2、Check whether the fixation between the IPM module and the radiator is firm.; 3、Check whether the compressor is well, otherwise replace it; 4、Check whether the IPM module is abnormal, otherwise replace it. 1 、 Check whether the ambient temperature exceeds the operation range for the air conditioner ; 2、Check whether the current detection circuit is abnormal, the electric control should be replaced when it is abnormal.. 1、Check whether the pressure is normal when the unit is running, if it is abnormal, you should detect the leakage and then welding and a dding refrigerant; 2、Check whether the ambient temperature is too high or too low, when the temperature is more than -20 degrees and less 55 degrees, it can disappear automatically; automatically; 3 、 Check whether temperature switch of compressor is damage, it should be replaced if it is damaged.

1、Check whether the supply voltage is out of ranging from P7

The outdoor unit DC generatrix voltage is abnormal

P8

lack refrigerant or reverse valve fault

150 to 270V; 2、Check the voltage detection circuit of th e IPM base board is abnormal, if it is abnormal, the IPM base board or the electric control board should be replaced. 1、Check whether the high and low pressure valves have been opened, otherwise open the valves; 2、Check whether the indoor coil pipe temperature sensor is normal, if it is a bnormal, the sensor should be replaced; 3、Check whether the indoor coil temperature sensor hung in the air ， please plug it in a correct position if th e indoor coil temperature sensor hung in the air; 4、Check the system pressure is abnormal, if it is abnormal, yon should detect leakage and the welding and adding the refrigerant.; 5、Please change the outdoor PCB board , if all above are normal.

1、 Check whether the ambient temperature is over the range

PA

protection when indoor pipe temperature is too low (Anti-icing)

of air-conditioning running temperature; 2、 Check the indoor coil temperature is less than or equal to -1 degrees, if more than this value it will be the protection of; 3、 Check whether the indoor coil temperature sensor 50

PC

PE

parameters are normal, if abnormal it is the replacement of the sensor; 4、 If the above are normal, check whether the main control board output parameters parameters are normal, if abnormal ,please replace the main control board. Outdoor ambient 1、 Check whether the outdoor ambient temperature is too temperature high or too low, when the ambient temperature is lower over-temperature than (T> -20, T <55), this fault automatically discharges; discharges; protection (including high 2、 Check whether the outdoor temperature sensor’s ring and low) temperature parameters are normal, if abnormal ,please replace the sensor; 3、 If the above are normal, check whether the main control board’s output parameters are normal, f abnormal ,please replace the main control board. 1、Check whether there are false weld and bad contact etc between the EEPROM chip block and the electronic control board ; EEPROM reading error 2、Check whether the EEPROM chip pin is broken foot and (outdoor unit) the direction of installation is in line with the EEPROM block; 3、When the procedure of EEPROM chip and i tself have fault it will appear the code PE. At this time there is the need to replace the EEPROM chip.

51

Chigo Inverters Manual

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