Hisense AUD-18UX4SGKL User manual

DC INVERTER AIR CONDITIONER
SERVICE MANUAL V:2.2（test edition）
UNIT:
Hisense Corporation
AUD-18UX4SGKL
AUC-18UX4SGAA
AUD-24UX4SZLH
AUC-24UX4SZEA
AUD-36UX4SAMH
AUC-36UX4SAEA
AUD-48UX6SPHH
AUC-48UX6SPFA
AUD-60UX6SPHH
AUC-60UX6SPFA
AUD-18UX4SZKL1
AUC-18UR4SZAA1
AUD-24UX4SALH1
AUC-24UR4SAEA1
AUD-36UX4SAMH1
AUC-36UR4SAEA1

Table of contents
Page
1．OPERATING RANGE 1
2．SPECIFICATION 2
2-1 Unit specifications 2
2-2 Major component specifications 14
2-3 Other component specifications 16
3．OUTLINES AND DIMENSIONS 18
3-1 INDOOR 18
3-2 OUTDOOR 23
4．REFRIGERANT FLOW DIAGRAM 27
4-1 Refrigerant flow diagram 27
4-2 Evacuation procedures 29
4-3 Evacuation direction 30
5．ELECTRICAL DATA 31
5-1 Electric wiring diagrams 31
5-2 Electric control 41
5-3 Sensor parameter 51
6．CONTROL MODE 59
6-1 Indoor control mode 59
6-2 Outdoor control mode 62
7．TROUBLESHOOTING 65
7-1 Error codes 65
8．CHECKING COMPONENTS 68
8-1 Check refrigerant system 68
8-2 Check parts unit 70
9．PARTS LIST 79
9-1 Indoor 58
9-2 Outdoor 72

1
1. . O OP PE ER RA AT TI IN NG G R RA AN NG GE E
1
Note：
For AUC-18UR4SZAA1 、AUC-24UR4SAEA1 、AUC-36UR4SAEA1 、AUD-18UX4SZKL1 、
AUD-24UX4SALH1、AUD-36UX4SAMH1
Temperature Temp
COOLING Maximum 43 ℃
Minimum 15 ℃
HEATING Maximum 24℃
Minimum -10℃
Temperature Temp
COOLING Maximum 48 ℃
Minimum 15 ℃
HEATING Maximum 24℃
Minimum -10℃

2
2. . S SP PE EC CI IF FI IC CA AT TI IO ON NS S
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2-1. Unit specifications
2-1-1.OUTDOOR UNIT
Model AUW-18U4SG
AUW-24U4SZ AUW-36U4SA
Function Cooling Heating Cooling Heating Cooling Heating
Power supply a.c 220V~240V/50Hz
Capacity
CapacitykW
Dehumidification l /h ---- ---- ---- ---- ---- ----
Air flow m3/h ---- ---- ---- ---- ---- ----
Electrical data
Rated current A 6.58 6.57 8.1 8.1 12.4 12.8
Rated input kW 1.482 1.48 1.83 1.84 2.85 2.93
Auxiliary heater A ------
Power factor % 99.9％99.9％99.9％
Max. current A 9.53 12.5 20.0
EER/COP -- -- --
Compressor Model DA130S1C-20FZ
ATL165SD-C9AU DA250S2C-30MT
Winding resistance Ω0.95（20
℃ ）0.590 (at75 ℃ ) 0.95（20 ℃ ）
Outdoor
fan motor
Model YDK29-6I-22 YDK70-6H-3 YDK95-6-9043
Winding resistance (at20 ℃ )
ΩM:283.5;A:180 M:78;A:80 M:59.1;A:85.8
Net size L×W×H cm 80×26×57 98*35*64 95×34×84
Package size L×W×H cm 94×36×64 108*42*72 111×46×98
Net weight kg 35.5 50 70
Gross weight kg 39 56 74
Refrigerant
piping
Liquid pipe mm 6.35 9.52 9.52
Gas pipe mm 12.7 15.88 15.88
Connection method Flare Flare
Special
remarks
Air direction ---- ---- ----
Sound level (Hi) dB 56 58 58
Fan speed (Hi) rpm 900 840 800
Fan speed regulator 3 3 3
Refrigerant filling
capacity(R410a) kg 1.27 1.5 2.1
Throttle mode EEV EEV EEV

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NOTE :Test conditions：
Cooling : Indoor: DB27℃/ WB19℃Outdoor: DB35℃/ WB24℃
Heating: Indoor: DB20℃/ WB15℃Outdoor: DB7℃/ WB 6℃
Model AUW-48U6SP
AUW-60U6SP
Function Cooling Heating Cooling Heating
Power supply a.c 380V~418V/50Hz
Capacity
Capacity kW
Dehumidification l /h ---- ---- ---- ----
Air flow m3/h ---- ---- ---- ----
Electrical dat
a
Rated current A 5.5 6.0 8.8 9.3
Rated input kW 3.52 3.75 4.895 5.25
Auxiliary heater A ------
Power factor % 99.9％99.9％
Max. current A 10.3 15.0
EER/COP -- --
Compressor Model TNB306FPNMC LNB42FSAMC
Winding resistance Ω1.02
(at20 ℃ ) 0.53 (at20 ℃ )
Outdoor
fan motor
Model YDK65-6-9024
YDK65-6-9061
Winding resistance (at20 ℃ )
ΩM:83;A:100.9
Net size L×W×H cm 95×34×138
Package
size L×W×H cm 111×46×153
Net weight kg 101 108
Gross weigh
t
kg 107 112
Refrigerant
piping
Liquid pipe mm 9.52
Gas pipe mm 19.05
Connection method Flare
Special
remarks
Air direction ---- ----
Sound level (Hi) dB 60 60
Fan speed (Hi) rpm 700 700
Fan speed regulator 3 3
Refrigerant filling
capacity(R410a) kg 3.0 3.5
Throttle mode EEV EEV

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2-1-2.INDOOR UNIT
Model AUD-18UX4SKL AUD-24UX4SLH
Function Cooling Heating Cooling Heating
Power supply 220V~240V/50Hz
Capacity
Capacity kW
5（1.9-5.8）5.6（1.4-6.6 6.4 7.25
Dehumidification l /h 1.3 ---- 2.0 ----
Air flow m3/h 850 800 1100 1100
Electrical data
Running current A 0.32 0.32 0.8 0.8
Rated input kW 70 70 160 160
Auxiliary heater A ---- ----
Power factor % ---- ----
Starting current A ---- ----
SEER/HSPF ---- ----
Compressor
Model ---- ----
Winding resistance
(at25℃) Ω---- ----
Indoor
fan motor
Model YSK110-40-4-A Y6S419C56
Winding resistance
(at20℃) ΩM:146;A:76 和205 M:70.1;A:75.5
Outdoor
fan motor
Model ----- -----
Winding resistance
(at20℃) Ω----- ----
Net size L×W×H cm 117x19x44.7 80*72*27
Package size L×W×H cm 133.8X26.4X57.8 117*87*34
Net weight kg 24 32
Gross weight kg 28 37
Refrigerant
piping
Liquid pipe mm 6.35 9.52
Gas pipe mm 12.7 15.88
Connection method ----
Special
remarks
Air direction ----
Sound level (Hi) dB 41 49
Fan speed (Hi) rpm 1130 1070
Fan speed regulator 3 3
Refrigerant filling
capacity(R410a) kg ---- ----
Throttle mode ---- ----

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Model AUD-36UX4SMH
Function Cooling Heating
Power supply 220V~240V/50Hz
Capacity
Capacity kW 10 11.5
Dehumidification l /h 3.5 ----
Air flow m3/h 1700 1800
Electrical dat
a
Running current A 1.13 1.13
Rated input kW 0.26 0.26
Auxiliary heater A ----
Power factor % ----
Starting current A ----
SEER/HSPF ----
Compressor
Model ----
Winding resistance
(at25℃) Ω ----
Indoor
fan motor
Model Y7S423C024
Winding resistance
(at20℃) Ω M:23.78;A:21.48
Outdoor
fan motor
Model -----
Winding resistance
(at20℃) Ω ----
Net size L×W×H cm 130×72×26.6
Package size L×W×H cm 156.9×86.8×33.6
Net weight kg 43
Gross weight kg 51
Refrigerant
piping
Liquid pipe mm 9.52
Gas pipe mm 15.88
Connection method ----
Special
remarks
Air direction ----
Sound level (Hi) dB 43
Fan speed (Hi) rpm 1150
Fan speed regulator 3
Refrigerant filling
capacity(R410a) kg ----
Throttle mode ----

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Model AUD-48UX4SHH AUD-60UX4SHH
Function Cooling Heating Cooling Heating
Power supply 220V~240V/50Hz
Capacity
Capacity kW
12.6（5.5-13.5 15（4.0-18）17（6.2-18）20.5（6.4-21）
Dehumidification l /h 4.5 ---- 4.5 ----
Air flow m3/h 2000 2000 2000 2000
Electrical data
Running current A 2.0 2.0 2.0 2.0
Rated input kW 0.58 0.58 0.58 0.58
Auxiliary heater A ---- ----
Power factor % ---- ----
Starting current A ---- ----
SEER/HSPF ---- ----
Compressor
Model ---- ----
Winding resistance
(at25℃) Ω---- ----
Indoor
fan motor
Model Y7S423C226 Y7S423C226
Winding resistance
(at20℃) ΩM:17.89;A:38.04 M:17.89;A:38.04
Outdoor
fan motor
Model ----- -----
Winding resistance
(at20℃) Ω----- ----
Net size L×W×H cm 138×80×35 138×80×35
Package size L×W×H cm 155×94×41 155×94×41
Net weight kg 50 50
Gross weight kg 58 58
Refrigerant
piping
Liquid pipe mm 9.52 9.52
Gas pipe mm 19.05 19.05
Connection method ---- ----
Special
remarks
Air direction ----
Sound level (Hi) dB 53 53
Fan speed (Hi) rpm 1250 1250
Fan speed regulator 3 3
Refrigerant filling
capacity(R410a) kg ---- ----
Throttle mode ---- ----

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Model AUC-18UX4SAA
Function Cooling Heating
Power supply 220V~240V/50Hz
Capacity
Capacity kW
5（1.87-5.75 5.6（1.38-6.6）
Dehumidification l /h 1.5 ----
Air flow m3/h 850 850
Electrical data
Running current A 0.32 0.32
Rated input kW 70 70
Auxiliary heater A ----
Power factor % ----
Starting current A ----
SEER/HSPF ----
Compressor
Model ----
Winding resistance
(at25℃) Ω----
Indoor
fan motor
Model YDK95-28-4-B
Winding resistance
(at20℃) ΩM:240;A:245
Outdoor
fan motor
Model -----
Winding resistance
(at20℃) Ω----
Net size L×W×H cm 57x57x27（panel 65x65x3）
Package size L×W×H cm 74X67X35（panel 73X73X13）
Net weight kg 21
Gross weight kg 25.5
Refrigerant
piping
Liquid pipe mm 6.35
Gas pipe mm 12.7
Connection method
Special
remarks
Air direction ----
Sound level (Hi) dB 48
Fan speed (Hi) rpm 980
Fan speed regulator 3
Refrigerant filling
capacity(R410a) kg
Throttle mode

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8
Model AUC-24UX4SEA AUC-36UX4SEA
Function Cooling Heating Cooling Heating
Power supply 220V~240V/50Hz
Capacity
Capacity kW 6.4 7.0 10 11.5
Dehumidification l /h --- ---- 3.5 ----
Air flow m3/h 1100 1100 1500 1600
Electrical data
Running current A 0.4 0.4 0.96 0.96
Rated input kW 120 120 0.22 0.22
Auxiliary heater A ---- ----
Power factor % ---- ----
Starting current A ---- ----
SEER/HSPF ---- ----
Compressor
Model ---- ----
Winding resistance
(at25℃) Ω---- ----
Indoor
fan motor
Model ARW5901QH EHDS50AQ
Winding resistance
(at20℃) Ω-- ----
Outdoor
fan motor
Model ----- -----
Winding resistance
(at20℃) Ω---- ----
Net size L×W×H cm 84x84x25（panel 95×95×3.7）
Package size L×W×H cm 93X93X29（panel 73X73X13）
Net weight kg 24 26
Gross weight kg 30 32
Refrigerant
piping
Liquid pipe mm 9.52 9.52
Gas pipe mm 15.88 15.88
Connection method FLARE
Special
remarks
Air direction ----
Sound level (Hi) dB 42 50
Fan speed (Hi) rpm 440 400 630
Fan speed regulator 3 3
Refrigerant filling
capacity(R410a) kg ---- ---
Throttle mode ---- ---