Haier HSU18VH7-W Service Manual
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Haier HSU18VH7-W manual content summary:
- Haier HSU18VH7-W | Service Manual - Page 1
Air conditioner Edition: 10070808 Domestic Air conditioner CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE. THIS MANUAL IS USED BY QUALIFIED APPLIANCE TECHNICIANS ONLY. HAIER DOES NOT ASSUME ANY RESPONSIBILITY FOR PROPERTY DAMAGE OR PERSONAL INJURY FOR - Haier HSU18VH7-W | Service Manual - Page 2
Air conditioner Edition: 10070808 CONTENTS 1. GENERAL INFORMATION 1 2. SPECIFICATION 3 3. ELECTRICAL CONTROLS 4 4. TROUBLE SHOOTING 10 5. INSTALLA TION 12 6. WIRING DIAGRAM 20 7. THERMISTOR RESISTANCE CHART 22 8. COMPRESSOR PERFORMANCE DIAGRAM 24 9. SCHEMATIC DIAGRAM OF PCB 25 - Haier HSU18VH7-W | Service Manual - Page 3
1. General information This Service Manual describes the operation, disassembly, troubleshooting, and repair of Haier Room Air Conditioners, etc. It is intended for use by authorized services who troubleshoot and repair these units. It is assumed that users of this manual are familiar with the - Haier HSU18VH7-W | Service Manual - Page 4
HSU18VH7 10070808 Product Features TEMP SIGNAL SENDING FAN SPEED SLEEP HEALTH POWER ON/OFF 18000/17800 BTU 1580/1560W/7/7.5A SEER:13.0/13.0 HSPF:7.7/7.7 18000/18000 BTU 1520/1480W/6.7/7.2A 500 CFM 1PH 230/208V ~ 60Hz - Haier HSU18VH7-W | Service Manual - Page 5
10070808 SEER HSPF (High/Med/Low) (dB) Indoor(H/M/L) Outdoor Low pressure at cool side 3 HSU18VH7 1 PH 230/208V / 60Hz T1 18000/17800 BTU 1580/1560W/7/7.5A / 13.0/13.0 18000/18000 BTU 1520/1480W/6.7/7.2A / 7.7/7.7 -7℃～43℃ 1350rpm 1260rpm 1180rpm 900/830rpm - Haier HSU18VH7-W | Service Manual - Page 6
3.1 Basic Function 10070808 60 F 86 F 60 F 86 F 60 F 86 F 4 - Haier HSU18VH7-W | Service Manual - Page 7
Edition: 10070808 3.2 . Introduction to electrical control functions Including brief introduction to air conditioners of series models and electric control function. Brief introduction to electric control function 3.2.1 Automatic running (applicable to fan-coil model) When the running mode - Haier HSU18VH7-W | Service Manual - Page 8
Air conditioner Edition: 10070808 State1 State3 State2 Ts-1 Ts Ts+2 Ts+3 3.2.4 Warm start (preventing cold wind when heating running begins, applicable to fan-coil model)) When heating - Haier HSU18VH7-W | Service Manual - Page 9
Temperature protection of indoor coil pipe: Under heating state, the air conditioner will control the running of the fan as per the temperature off during running due to power failure, or closed for maintenance or troubleshooting, it will restart to run after the power resumes with the original - Haier HSU18VH7-W | Service Manual - Page 10
the buzzer on the panel. 3.2.11 Trial run function When the air conditioner is in OFF state, press the emergency switch for 5 seconds till hearing 2 sounds of click from the buzzer, then the air conditioner will turn to the trial run state. The unit will run in the - Haier HSU18VH7-W | Service Manual - Page 11
Air conditioner Edition: 10070808 running for 1 hour under heating mode, the setting temperature will decrease 2℃, after another 1 hour, it will decrease the 2℃ again, and after 3 hours, it will increase 1℃, and after other 3 hours, it will cease. MODEL HSU18VH7 PCB 0010403861 The SW2 select"25 - Haier HSU18VH7-W | Service Manual - Page 12
10070808 10 - Haier HSU18VH7-W | Service Manual - Page 13
Air conditioner Edition: 10070808 Table for Wrong Codes Wrong express power timing operating reasons Ways and means solutions tools ★ ■ ■ indoor ambient temperature sensor abnormal Check the sensor - Haier HSU18VH7-W | Service Manual - Page 14
10070808 12 - Haier HSU18VH7-W | Service Manual - Page 15
10070808 13 - Haier HSU18VH7-W | Service Manual - Page 16
10070808 -14- - Haier HSU18VH7-W | Service Manual - Page 17
Air conditioner Edition: 10070808 -15- - Haier HSU18VH7-W | Service Manual - Page 18
Indoor unit 10070808 Grounding line Grounding line Power supply Power supply Connecting wiring:AWG12X5. Power Cable:AWG12X3. Connecting wiring:AWG12X4+AWG18X2. Power Cable:AWG12X3. 16 - Haier HSU18VH7-W | Service Manual - Page 19
10070808 -17- - Haier HSU18VH7-W | Service Manual - Page 20
10070808 -18 - - Haier HSU18VH7-W | Service Manual - Page 21
10070808 19 - Haier HSU18VH7-W | Service Manual - Page 22
10070808 WIRING DIAGRAM INDOOR UNIT WIRING DIAGRAM OF INDOOR UNIT ION GENERATOR FAN MOTOR M LOUVER MOTOR M CN4 COMP N L CN1 CN2 SW1 CN3 CN7 CN8 CN9 PCB CN10 CN12 NOTING： 1 ONLY COOLING TYPE DOESN'T HAVE THE DOTTED LINE. 2 THE DASHED UNIT IS OPTIONAL UNIT. 1 2 3 45 wwwww TO OUTDOOR UNIT - Haier HSU18VH7-W | Service Manual - Page 23
OUTDOOR UNIT Edition:10070808 WIRING DIAGRAM OF OUTDOOR UNIT 0010510468 B B RR ～ SCM C W W R B R BR ～M w B B W 1 234 5 67 GG TO INDOOR UNIT L2(N) L1(L) Grounding line Y/G:YELLOW/GREEN R:RED BL:BLUE Y:YELLOW B:BLACK BR:BROWN W:WHITE Note: Because of the difference of compressor, the - Haier HSU18VH7-W | Service Manual - Page 24
10070808 T(℃) -20℃ -19℃ -18℃ -17℃ -16℃ -15℃ -14℃ -13℃ -12℃ -11℃ -10℃ -9℃ -8℃ -7℃ -6℃ -5℃ -4℃ -3℃ -2℃ -1℃ 0℃ 1℃ 2℃ 3℃ 4℃ 5℃ 6℃ 7℃ 8℃ 9℃ 10℃ 11℃ 12℃ 13℃ R(KΩ) 251.8 236.9 223.1 210.1 197.9 186.5 175.9 165.9 156.5 147.7 139.5 131.8 124.5 117.7 111.3 105.3 99.63 94.3 89.3 84.58 80.14 75.96 72.02 68.31 - Haier HSU18VH7-W | Service Manual - Page 25
10070808 T(℃) -30℃ -29℃ -28℃ -27℃ -26℃ -25℃ -24℃ -23℃ -22℃ -21℃ -20℃ -19℃ -18℃ -17℃ -16℃ -15℃ -14℃ -13℃ -12℃ -11℃ -10℃ -9℃ -8℃ -7℃ -6℃ -5℃ -4℃ -3℃ -2℃ -1℃ R(KΩ) 155.4 146.4 138.1 130.2 122.9 116 109.5 103.5 97.77 92.44 87.42 82.71 78.29 74.12 70.21 66.52 63.06 59.79 56.71 53.81 51.08 48.5 46.07 43 - Haier HSU18VH7-W | Service Manual - Page 26
HSU18VH7 10070808 -24- - Haier HSU18VH7-W | Service Manual - Page 27
10070808 1 2 1 2 R O O M PIPE CIRCUIT DIAGRAM B E E P-PK M 13E PY -4002 26 CN20 1 2 3 4 5 R95 2K R77 10K +5 +5 R76 10k E16 100UF/25V C29 102 +5 R93 P1 2K C31 2SB1197 104 R94 10K R78 560 +5V CN21 4 3 +5V GND 2 1 TX RX +5V C15 R87 R86 104 1K 10K R88 100 R89 100 IC2 4 3 2 1
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Domestic
Air conditioner
CAUTION
READ THIS MANUAL
CAREFULLY TO
DIAGNOSE TROUBLE
CORRECTLY BEFORE
OFFERING SERVICE.
THIS MANUAL IS USED
BY QUALIFIED
APPLIANCE
TECHNICIANS ONLY.
HAIER DOES NOT
ASSUME ANY
RESPONSIBILITY FOR
PROPERTY DAMAGE
OR PERSONAL INJURY
FOR IMPROPER
SERVICE
PROCEDURES DONE
BY ONE UNQUALIFIED
PERSON.
HSU18VH7
Air conditioner
Edition: 10070
8
08