GCHV CHV Mini Series Service Manual Download Page 54

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Combination

(%)

(Capacity

index)

Outdoor Air

temperature

(

C DB)

Indoor temperature (

C DB/WB)

DB: 20.8, WB: 14 DB: 23.3, WB: 16 DB: 25.8, WB: 18

DB: 27, WB: 19

DB: 28.2, WB: 20 DB: 30.7, WB: 22

DB: 32, WB: 24

50%

-5

4.9

0.69

5.1

0.73

5.3

0.75

5.4

0.77

5.5

0.78

5.7

0.81

5.8

0.83

-2

4.8

0.70

5.0

0.74

5.2

0.76

5.3

0.78

5.4

0.79

5.6

0.82

5.7

0.84

4.7

0.71

4.9

0.75

5.1

0.77

5.2

0.78

5.3

0.80

5.4

0.82

5.6

0.85

4.6

0.71

4.8

0.75

5.0

0.78

5.1

0.79

5.2

0.81

5.3

0.83

5.5

0.86

4.5

0.72

4.7

0.76

4.9

0.78

5.0

0.80

5.1

0.82

5.2

0.84

5.4

0.86

4.4

0.73

4.6

0.77

4.8

0.79

4.9

0.81

5.0

0.82

5.1

0.85

5.3

0.87

4.3

0.73

4.6

0.78

4.7

0.80

4.8

0.82

4.9

0.83

5.0

0.86

5.2

0.88

5.8

0.98

6.1

1.03

6.3

1.06

6.4

1.08

6.5

1.11

6.7

1.14

6.9

1.17

5.7

1.02

6.0

1.07

6.2

1.11

6.3

1.13

6.4

1.15

6.6

1.19

6.8

1.22

5.6

1.06

5.9

1.12

6.0

1.15

6.2

1.18

6.3

1.20

6.5

1.23

6.7

1.27

5.4

1.10

5.7

1.16

5.9

1.20

6.0

1.22

6.2

1.25

6.3

1.29

6.5

1.32

6.3

1.24

6.7

1.30

6.9

1.35

7.0

1.37

7.2

1.40

7.4

1.44

7.6

1.48

6.2

1.25

6.5

1.32

6.7

1.36

6.9

1.39

7.0

1.41

7.2

1.46

7.4

1.50

6.1

1.26

6.4

1.33

6.6

1.37

6.8

1.40

6.9

1.43

7.1

1.47

7.3

1.51

6.0

1.27

6.3

1.34

6.5

1.39

6.6

1.41

6.8

1.44

7.0

1.49

7.1

1.53

5.8

1.29

6.2

1.36

6.4

1.40

6.5

1.43

6.6

1.46

6.8

1.50

7.0

1.54

7.2

1.60

7.6

1.69

7.8

1.75

8.0

1.78

8.1

1.82

8.4

1.87

8.6

1.93

7.0

1.62

7.4

1.71

7.7

1.76

7.8

1.80

8.0

1.84

8.2

1.89

8.5

1.94

6.9

1.64

7.3

1.73

7.5

1.78

7.7

1.82

7.8

1.86

8.1

1.91

8.3

1.96

6.8

1.65

7.1

1.75

7.4

1.80

7.5

1.84

7.7

1.87

7.9

1.93

8.1

1.98

6.6

1.67

7.0

1.76

7.2

1.82

7.4

1.86

7.5

1.89

7.7

1.95

8.0

2.00

6.5

1.68

6.9

1.77

7.1

1.83

7.2

1.87

7.4

1.90

7.6

1.96

7.8

2.01

6.4

1.69

6.7

1.78

6.9

1.84

7.1

1.87

7.2

1.91

7.4

1.97

7.6

2.02

6.2

1.70

6.6

1.79

6.8

1.85

6.9

1.88

7.1

1.92

7.3

1.98

7.5

2.03

6.1

1.70

6.5

1.80

6.7

1.86

6.8

1.89

6.9

1.93

7.1

1.99

7.3

2.04

6.0

1.71

6.3

1.81

6.5

1.86

6.7

1.90

6.8

1.94

7.0

2.00

7.2

2.06

5.9

1.72

6.2

1.82

6.4

1.87

6.5

1.91

6.7

1.95

6.9

2.01

7.1

2.07

5.8

1.73

6.1

1.83

6.3

1.88

6.4

1.92

6.5

1.96

6.7

2.02

6.9

2.08

5.6

1.74

6.0

1.83

6.1

1.89

6.3

1.93

6.4

1.97

6.6

2.03

6.8

2.09

5.5

1.75

5.8

1.84

6.0

1.90

6.1

1.94

6.3

1.98

6.5

2.04

6.6

2.10

CHV Mini VRF 50/60Hz

t 2

its

202105

Summary of Contents for CHV Mini Series

Page 1: ...Commercial AirConditioners Service Manual R410A Series...

Page 2: ...CHV Mini VRF50 60Hz 202105 1 CONTENTS CONTENTS Part 1 General Information 3 Part 2 Outdoor Units 13 Part 3 Installation 91 Part 4 Troubleshooting 107...

Page 3: ...CHV Mini VRF 50 60Hz 2 202105 CHV Mini Series ServiceManual...

Page 4: ...CHV Mini VRF50 60Hz 202105 3 Part 1 General Information Part 1 General Information 1 Indoor and Outdoor Unit Capacities 4 3 Nomenclature 7 2 External Appearance 5 4 Combination Ratio 7 5 Features 8...

Page 5: ...tyrange Capacity Capacity Q1 Q2 Q4 QR FA G UA TA TB TH kW index 2 2 22 22 22 22 22 2 8 28 28 28 28 28 3 6 36 36 36 36 36 36 4 5 45 45 45 45 45 45 45 5 6 56 56 56 56 56 56 56 7 1 71 71 71 71 71 71 71 7...

Page 6: ...ppearance 2 1 Indoor Units Table1 2 1 Standardindoor unitappearance One way Cassette Q1 Two wayCassette Q2 Compact Four wayCassette Q4 Round flowCassette QR Floor Standing FA Wall mounted G Floor Ceil...

Page 7: ...h 445 60 65 220 240V 1N 50Hz CHV DH125W R1 Width 1100 Height 870 Depth 528 85 95 220 240V 1N 50Hz CHV DH140W R1 Width 1100 Height 870 Depth 528 90 100 220 240V 1N 50Hz CHV DH160W R1 Width 1100 Height...

Page 8: ...ination ratio Standard indoor units CHV Mini Series outdoorunits 50 130 Combination ratio 3 Nomenclature GCHV D125W HZR1 D01 Box code Refrigerant Type R1 R410A Power Supply 220 240V 50Hz 1Ph Z 380 415...

Page 9: ...ing heating and cooling of up to 9 zones with one outdoor unit Such as villa restaurant schooletc GCHV offers various indoor units more than 100 models of 10 types Capacity ranges are from 2 2kW to 16...

Page 10: ...wer operationsound 5 2 High efficient DC inverter compressor All DC inverter Mini VRF adopts highly intelligent inverter driven compressor This advanced technology enables the output of the outdoor un...

Page 11: ...ameters 5 8 Auto address setting function The addresses of indoor units can be set automatically by outdoor unit It has capability to reduce artificial faults and manual works Wireless or wired contro...

Page 12: ...vingsin installation space It is particularlysuitablefor small offices villas shops etc 5 11 Easy maintenance Forced cooling button makes outdoor unit run in cooling mode at any condition so it is ver...

Page 13: ...CHV Mini VRF 50 60Hz 12 202105 CHV Mini Series ServiceManual...

Page 14: ...tdoor Units Part 2 Outdoor Units 1 Specifications 14 2 Dimensions 17 3 Service Space 18 4 Piping Diagrams 19 5 Wiring Diagrams 20 6 Field Wiring 23 7 Capacity Tables 24 8 Electric Characteristics 88 9...

Page 15: ...oil volume ml 400 670 Fan data Fan motor Type DC DC Brand Yongan Yongan Model DRN 310 75 8 DRN 310 90 8 Quantity 1 1 Insulation class B B Protection class IPX4 IPX4 Power output W 75 90 Fan blade Mate...

Page 16: ...ml 1100 1100 1100 Fan data Fan motor Type DC DC DC Brand Nidec Nidec Nidec Model DR 310 180 8 DR 310 180 8 DR 310 180 8 Quantity 1 1 1 Insulation class E E E Protection class IP44 IP44 IP44 Power out...

Page 17: ...Quantity 1 1 1 Air flow m3 h 4000 5500 5500 Physical data Outdoor coil Fin type Hydrophilic Aluminum Hydrophilic Aluminum Hydrophilic Aluminum Tube diameter mm 9 52 7 7 Number of rows 2 5 3 3 Coil len...

Page 18: ...2 Dimensions CHV DH080W R1 CHV DH100W R1 GCHV D125W HZR1 D01 CHV DH125W R1 CHV DH140W R1 CHV DH160W R1 GCHV D140W HZR1 F01 GCHV D160W HZR1 F01 CHV Mini VRF 50 60Hz Part 2 Outdoor Units 202105 17...

Page 19: ...Service Space 3 1 Single unit installation 300 600 2000 Air outlet Air inlet Air inlet 300 3 2 Parallel connect the two units or above 600 CHV Mini VRF 50 60Hz CHV Mini Series Service Manual 18 20210...

Page 20: ...used to regulating refrigerantflow High Pressure Switch When the discharge pressure of compressor is 4 5Mpa or higher the protection switch will be triggered and if the discharge pressure is down to...

Page 21: ...ghttime 8 12 Nighttime 6 12 To Indoor To centralized controller Check Table NUM Display content Frequency the number of indoor units Outdoor power Indoor demand Run mode 0 shutdown 2 refrigeration Act...

Page 22: ...ng 5 VIP auto priority 6 First priority Frequency limit display Last failure or protection code Program version EEPROM version Insp finished 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 26...

Page 23: ...ge Actual operation ability Fan speed state 0 8 T2 T2B average temp T3 condenser outlet temp T4 outdoor ambient temp ration 3 heating 4 forced refrigeration TP exhaust temp DC current AC voltage DC vo...

Page 24: ...ashed box For the specific method of installation please contact your localsupplier Communicationwire X Y E P Q E Indoorunit Outdoorunit Y G L N Three core shieldedcable Three core shielded cable toce...

Page 25: ...0 2 53 7 2 2 61 7 4 2 68 48 5 8 2 12 6 2 2 24 6 4 2 31 6 5 2 36 6 6 2 40 6 8 2 47 7 0 2 55 50 5 5 1 95 5 9 2 06 6 0 2 13 6 2 2 17 6 3 2 21 6 5 2 28 6 7 2 34 52 5 3 1 80 5 6 1 90 5 7 1 96 5 9 1 99 6 0...

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Page 29: ...0 1 00 4 3 1 06 4 4 1 09 4 5 1 12 4 6 1 14 4 7 1 17 4 9 1 20 20 4 0 1 01 4 2 1 07 4 3 1 10 4 4 1 13 4 5 1 15 4 6 1 18 4 8 1 22 21 3 9 1 02 4 1 1 08 4 2 1 12 4 3 1 14 4 4 1 16 4 5 1 19 4 7 1 23 23 3 8...

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Page 31: ...03 48 7 0 2 40 7 4 2 53 7 7 2 61 7 8 2 67 8 0 2 72 8 2 2 80 8 4 2 88 50 6 7 2 21 7 0 2 33 7 3 2 40 7 4 2 45 7 6 2 50 7 8 2 58 8 0 2 65 52 6 3 2 03 6 7 2 14 6 9 2 21 7 0 2 26 7 2 2 30 7 4 2 37 7 6 2 44...

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Page 34: ...16 5 3 1 22 5 5 1 26 5 6 1 29 5 7 1 31 5 9 1 35 6 1 1 39 20 5 0 1 17 5 2 1 24 5 4 1 27 5 5 1 30 5 6 1 33 5 8 1 37 6 0 1 40 21 4 9 1 18 5 1 1 25 5 3 1 29 5 4 1 31 5 5 1 34 5 7 1 38 5 8 1 42 23 4 8 1 19...

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Page 37: ...10 0 2 90 10 2 2 98 48 8 1 2 36 8 6 2 49 8 8 2 57 9 0 2 62 9 2 2 67 9 5 2 75 9 7 2 83 50 7 7 2 17 8 1 2 29 8 4 2 36 8 6 2 41 8 7 2 46 9 0 2 53 9 2 2 61 52 7 3 2 00 7 7 2 11 8 0 2 17 8 1 2 22 8 3 2 26...

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Page 74: ...5 3 72 12 2 3 80 12 0 3 87 11 4 4 07 7 0 7 6 13 4 3 69 13 1 3 72 12 9 3 76 12 6 3 84 12 4 3 91 11 7 4 11 5 0 5 6 13 8 3 72 13 5 3 76 13 3 3 80 13 0 3 87 12 7 3 95 12 1 4 15 3 0 3 7 14 2 3 76 14 0 3 80...

Page 75: ...0 7 6 11 6 3 19 11 4 3 22 11 2 3 25 10 9 3 32 10 7 3 39 10 2 3 56 5 0 5 6 12 0 3 22 11 7 3 25 11 5 3 29 11 3 3 35 11 0 3 42 10 5 3 59 3 0 3 7 12 3 3 25 12 1 3 29 11 9 3 32 11 6 3 39 11 4 3 45 10 8 3...

Page 76: ...7 3 2 35 6 9 2 46 7 0 7 6 8 2 2 23 8 0 2 26 7 8 2 28 7 7 2 32 7 5 2 37 7 2 2 49 5 0 5 6 8 4 2 26 8 3 2 28 8 1 2 30 7 9 2 35 7 8 2 39 7 4 2 51 3 0 3 7 8 7 2 28 8 5 2 30 8 3 2 32 8 2 2 37 8 0 2 42 7 6...

Page 77: ...13 0 4 18 12 7 4 26 12 1 4 47 7 0 7 6 14 2 4 05 14 0 4 10 13 7 4 14 13 4 4 22 13 1 4 30 12 5 4 52 5 0 5 6 14 7 4 10 14 4 4 14 14 1 4 18 13 8 4 26 13 5 4 35 12 9 4 56 3 0 3 7 15 1 4 14 14 8 4 18 14 5...

Page 78: ...3 87 7 0 7 6 12 3 3 51 12 1 3 54 11 9 3 58 11 6 3 65 11 4 3 72 10 8 3 91 5 0 5 6 12 7 3 54 12 5 3 58 12 2 3 62 12 0 3 69 11 7 3 76 11 2 3 95 3 0 3 7 13 1 3 58 12 9 3 62 12 6 3 65 12 3 3 73 12 1 3 80 1...

Page 79: ...7 4 2 71 7 0 7 6 8 7 2 46 8 5 2 48 8 3 2 51 8 2 2 56 8 0 2 61 7 6 2 74 5 0 5 6 8 9 2 48 8 8 2 51 8 6 2 53 8 4 2 58 8 3 2 63 7 8 2 77 3 0 3 7 9 2 2 51 9 0 2 53 8 9 2 56 8 7 2 61 8 5 2 66 8 1 2 79 0 0...

Page 80: ...0 2 3 37 9 7 3 54 8 5 9 1 11 4 3 21 11 1 3 24 10 9 3 28 10 7 3 34 10 5 3 41 10 0 3 58 7 0 7 6 11 7 3 24 11 5 3 28 11 3 3 31 11 0 3 38 10 8 3 44 10 3 3 62 5 0 5 6 12 1 3 28 11 8 3 31 11 6 3 34 11 4 3 4...

Page 81: ...9 9 2 78 9 7 2 81 9 5 2 84 9 3 2 89 9 1 2 95 8 6 3 10 7 0 7 6 10 2 2 81 10 0 2 84 9 8 2 86 9 6 2 92 9 4 2 98 8 9 3 13 5 0 5 6 10 5 2 84 10 3 2 86 10 1 2 89 9 9 2 95 9 7 3 01 9 2 3 16 3 0 3 7 10 8 2 86...

Page 82: ...04 5 9 2 15 8 5 9 1 6 9 1 95 6 8 1 96 6 7 1 98 6 5 2 02 6 4 2 06 6 1 2 17 7 0 7 6 7 1 1 96 7 0 1 98 6 9 2 00 6 7 2 04 6 6 2 09 6 3 2 19 5 0 5 6 7 4 1 98 7 2 2 00 7 1 2 02 6 9 2 07 6 8 2 11 6 5 2 21 3...

Page 83: ...1 9 3 76 11 6 3 83 11 1 4 03 8 5 9 1 13 0 3 65 12 7 3 69 12 5 3 72 12 2 3 80 12 0 3 87 11 4 4 07 7 0 7 6 13 4 3 69 13 1 3 72 12 9 3 76 12 6 3 84 12 4 3 91 11 7 4 11 5 0 5 6 13 8 3 72 13 5 3 76 13 3 3...

Page 84: ...3 3 16 11 0 3 19 10 8 3 22 10 6 3 29 10 4 3 35 9 9 3 52 7 0 7 6 11 6 3 19 11 4 3 22 11 2 3 25 10 9 3 32 10 7 3 39 10 2 3 56 5 0 5 6 12 0 3 22 11 7 3 25 11 5 3 29 11 3 3 35 11 0 3 42 10 5 3 59 3 0 3 7...

Page 85: ...2 32 6 7 2 44 8 5 9 1 7 9 2 21 7 8 2 23 7 6 2 26 7 5 2 30 7 3 2 35 6 9 2 46 7 0 7 6 8 2 2 23 8 0 2 26 7 8 2 28 7 7 2 32 7 5 2 37 7 2 2 49 5 0 5 6 8 4 2 26 8 3 2 28 8 1 2 30 7 9 2 35 7 8 2 39 7 4 2 51...

Page 86: ...14 12 4 4 22 11 7 4 43 8 5 9 1 13 8 4 01 13 5 4 05 13 3 4 10 13 0 4 18 12 7 4 26 12 1 4 47 7 0 7 6 14 2 4 05 14 0 4 10 13 7 4 14 13 4 4 22 13 1 4 30 12 5 4 52 5 0 5 6 14 7 4 10 14 4 4 14 14 1 4 18 13...

Page 87: ...1 12 0 3 47 11 7 3 51 11 5 3 54 11 3 3 61 11 0 3 69 10 5 3 87 7 0 7 6 12 3 3 51 12 1 3 54 11 9 3 58 11 6 3 65 11 4 3 72 10 8 3 91 5 0 5 6 12 7 3 54 12 5 3 58 12 2 3 62 12 0 3 69 11 7 3 76 11 2 3 95 3...

Page 88: ...2 2 56 8 0 2 61 7 6 2 74 5 0 5 6 8 9 2 48 8 8 2 51 8 6 2 53 8 4 2 58 8 3 2 63 7 8 2 77 3 0 3 7 9 2 2 51 9 0 2 53 8 9 2 56 8 7 2 61 8 5 2 66 8 1 2 79 0 0 0 7 9 7 2 56 9 5 2 58 9 3 2 61 9 1 2 66 9 0 2 7...

Page 89: ...y PowerLine mm2 Breaker Fuse A Signal Wire between Indoorand Outdoor Units mm 8 10 220 240V 50Hz 60Hz 3 4 0 40 30 three core shielded cable3 1 0 two core shielded cable2 1 0 12 5 14 16 220 240V 50Hz 6...

Page 90: ...160W HZR1 F01 57 1 1m H 9 Sound Levels Sound pressure level dB 0dB 0 0002 bar 70 60 50 40 30 20 NC 50 NC 40 NC 30 NC 20 NC 60 70 60 50 40 30 20 NC 50 NC 40 NC 30 NC 20 NC 60 Sound pressure level dB 0d...

Page 91: ...2 Heating 15 30 16 32 10 0 5 5 15 10 20 25 30 35 45 40 Outdoor temperature C DB Cooling 10 16 21 25 32 Indoor temperature C DB 5 10 15 25 20 30 Outdoor temperature CDB 10 16 21 25 32 Indoor temperatur...

Page 92: ...202105 91 Part 3 Installation Part 3 Installation 1 Precautions 92 2 Outdoor Unit Installation 93 3 Piping Installation 94 4 Electric Wiring Installations 102 5 Test Running 104 6 Precautions on Refr...

Page 93: ...Incorrect repair will result in fire electric shock injury water leak etc Please inform the distributor or the professional staff torepair 1 2 NOTE 1 Make sure the water drainage ditch is useable 2 M...

Page 94: ...tance2000mm or more between the unit and the wallsurface 5 Supposing the wind direction during the operation season of the discharge port is set at right angle to the wind direction 6 Do not install t...

Page 95: ...onnection 1 Flaring Use a pipe cutter to cut the refrigerant pipe and a pipe expander to flare 3 2 Set refrigerant pipe dimension and pipe connecting steps Name of Pipes Connecting Position of Pipe Co...

Page 96: ...8 N5 28 N6 22 Firstdistributor 2 Connecting modeII Capacity of Outdoor Unit kW Pipe Dimension of Main Pipe mm L1 30m L1 30m First distributor Liquid pipe Gas pipe Liquid pipe Gas pipe 8 9 52 15 88 9 5...

Page 97: ...18 9 52 15 88 SP FQG N01D 18 W 22 9 52 19 05 SP FQG N01D 3 5 Allowable length and level difference of refrigerant pipe 1 Connecting mode I CHV Mini VRF 50 60Hz A L1 B L3 C L4 D L5 E L2 b c d e f a Equ...

Page 98: ...r L3 L5 f connecting mode II Equivalent length to the nearest distributor 15m a b c d e f Height difference between indoor and outdoor units Outdoorupper 30m Outdoorlower 20m Height difference between...

Page 99: ...2 The distributor shall be installed horizontally with the deviation angle of no greater than 10 3 The distributor cannot be turned directly with the straight pipe of no less than0 8m Oil return bend...

Page 100: ...luid side simultaneously mark the pressure value and then perform 24 hour air tightnesstest 2 If the pressuredrops recheck the leakageof all interfacesand then maintainthe pressurefor 24 hours 3 Don t...

Page 101: ...length of the pipe at the liquidside of the indoor and outdoorunits Diameters of pipe atthe liquid side mm Additional refrigerant charge equal to the length of 1m pipe unit kg 6 35 0 022 9 52 0 054 No...

Page 102: ...the operation tighten the valve cover 3 R410A special tool shall be used to vacuumize the valve and fill the refrigerant at the service entrance Fill the refrigerant at the service entrance at the ga...

Page 103: ...0 240V50Hz 60Hz 3 4 0 40 30 three core shielded cable3 1 0 two core shielded cable2 1 0 12 5 14 16 220 240V50Hz 60Hz 3 6 0 63 45 12 5 14 16 380 415V50Hz 60Hz 5 2 5 25 20 Communicationwire X Y E P Q E...

Page 104: ...or unit connect with power supply which is 220 240V 50Hz Outdoor unit connect with power supply which is 220 240V 50Hz Please set all the indoor unit power supply of one system into the same circuit I...

Page 105: ...ng 1 Prepare the required refrigerant Calculate the refilling volume of refrigerant for each set of units according to the length of on site liquidpipe 2 Prepare the system plan system piping diagram...

Page 106: ...The critical gas concentration harmless to the human body is 0 3 kg m3 4 Confirm the critical concentration according to the following steps and take correspondingmeasures Calculate the indoor volume...

Page 107: ...installa mechanicalventilationdevice for frequentventilation b If frequent ventilation cannot be performed please install a leak warning device interlinked with the mechanical ventilationdevice Indoo...

Page 108: ...CHV Mini VRF 50 60Hz Part 4 Troubleshooting 202105 107 Part 4 Troubleshooting 1 Exploded Views 108 2 PCB Ports Instructions 110 3 Dialing Setting 112 4 Error Code Table 114 5 Troubleshooting 115...

Page 109: ...108 202105 CHV Mini Series ServiceManual CHV Mini VRF 50 60Hz 1 ExplodedViews...

Page 110: ...t heat pipeparts 1 25 Oil separator component 1 7 Radiatorcover 1 26 Middle partitionpart 1 8 Electric control box cover 1 27 Chassis welding assembly 1 9 Electronic control part 1 28 Maintenance boar...

Page 111: ...pressure switch signal 10 HP High pressure switch signal 11 T7 Refrigerant heat pipe temperature 12 T3B Condenser middle temperature 13 T5 Compressor exhaust temperature 14 T3 T4 Condenser outlet Ambi...

Page 112: ...cooling Commissioning 6 P Q E Indoor unit communication interface 7 X Y E Centralized controlinterface 8 SW2 Outdoor unit running mode selection 9 SW1 Silent mode selection No Content Remark 26 TEM M...

Page 113: ...Mode Forced Silent Mode Night Silent Mode Reserved Standard Mode Factory default ON ON ON ON 1 2 1 2 1 2 1 2 Dialing Night Time ON ON ON ON 3 4 3 4 3 4 3 4 6 10 Factory default 6 12 8 10 8 12 1 2 3 1...

Page 114: ...13 13 T7 TS refrigerant cooling inlet pipe temperature 14 14 Electronic expansion valve opening degree Actual value display value 8 15 15 AC current 16 16 DC current 17 17 AC voltage 18 18 DC voltage...

Page 115: ...be restored until quantity of indoor units arerestored H9 Display P9 DC fan protection for 2 times within 10minutes Only restore after power on again H10 Display P3 Overcurrent protection for 3 times...

Page 116: ...edited professionals and in accordance with all applicable legislation all national local and other laws standards codes rules regulationsand other legislationthatapplyin a given situation Power off t...

Page 117: ...116 202105 CHV Mini Series ServiceManual CHV Mini VRF 50 60Hz 5 2 E1 Outdoor unit phase sequence fault 5 3 E2 Communicationfault between indoor unit and outdoor unit...

Page 118: ...CHV Mini VRF 50 60Hz 202105 117 Part 4 Troubleshooting 5 4 E4 T4 outdoor ambient temperature sensor fault 5 5 E6 T3 Condenser pipe temperature sensor fault outlet...

Page 119: ...nnect it well No Pull out the exhaust temperature sensor plug and measure the resistance If multimeter displays 0 or OL Normal resistance 50K Replace the sensor Yes Replace outdoor main PCB E9 Check w...

Page 120: ...tdoor main PCB Pull out the T3B sensor plug and measure the resistance Check if the T3B sensor connector is loose The outdoor ambient temperature is between 0 C and 40 C and the resistance is between...

Page 121: ...r plug and measure the resistance Check if the T7 TS sensor connector is loose The outdoor ambient temperature is between 0 C and 40 C and the resistance is between 13K and 2 9K The normal value at 25...

Page 122: ...5 12 H7 The decrease in quantity of indoor unit 5 13 P1 High pressure protection Check the wire connection of high pressure switch if it is OK pull out the switch and measure the resistance OL Replac...

Page 123: ...eManual CHV Mini VRF 50 60Hz 5 14 P2 H5 Low pressure protection Check the wire connection of low pressure switch if it is OK pull out the switch and measure the resistance OL Replace low pressure swit...

Page 124: ...CHV Mini VRF 50 60Hz 202105 123 5 15 P3 H10 Over currentprotection Part 4 Troubleshooting P3 H10 5 16 P4 H6 Exhaust overheating protection...

Page 125: ...124 202105 CHV Mini Series ServiceManual CHV Mini VRF 50 60Hz 5 17 P5 T3 or T3B condenserpipe overheating protection 5 18 P6 H4 Pb H12 IPM protection...

Page 126: ...0s these L error codes will display L1 DC low voltage protection L2 DC high voltage protection L4 MCE malfunction simultaneously cycle loop L5 Zero speed protection L7 Compressor lack of phase protect...

Page 127: ...Name Remark 1 Blue FG 12 revolution 2 Yellow Vsp OFF 0V ON DC 0 6 5V 3 White Vcc DC 15V 4 Black GND 5 Red Vm DC 380V 310V Check if the voltage at each position is normal as following chart Check if th...

Page 128: ...ompressor s three minute delay protection is effective 2 Effect Prevent the four way valve from being powered down and not recovering jamming or inserting the wrong end of the four way valve 3 Solutio...

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Summary of Contents for CHV Mini Series

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GCHV CHV Mini Series, Service Manual, Page: 54 / 128

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Summary of Contents for CHV Mini Series

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