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Haier HSU18VH7 manual

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Table of contents for the manual

  • Page 1

    Domestic Air conditioner CAUTION READ THIS MANUAL CAREFUL L Y TO DIAGNOSE TROUBLE CORREC TL Y BEFORE OFFERING SERVICE. THIS MANUAL IS USED BY QUALIFIED APPLIANCE TECHNICIANS ONL Y . HAIER DOES NOT ASSUME ANY RESPONSIBILI TY FOR PROPE RTY DAMAGE OR PERSONAL INJURY FOR IMPROPER SE RVICE PROCEDUR ES DONE BY ONE UNQUALIFIED PERSON. HSU18VH7 Air conditi[...]

  • Page 2

    Air conditioner Edition: 10070808 CONTENTS 1. GENERAL INFORMA TION................................................................1 2. SPECIFICA TION................................................................................ 3 3. ELECTRICAL CONTROL S ...............................................................4 4. TROUBL E SHOOTING ........[...]

  • Page 3

    Air conditioner Edition: 10070 8 0 8 - 1 - 1. General information This Service Manual describes the operation, disassembly , troubleshooting, and re pair 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 use of too[...]

  • Page 4

    HSU18VH7 10070808 Product Features FAN SPEED TEMP SI GN AL SENDING SLEEP HEALTH POWER ON/OFF 18000/17800 BTU 1580/1560W/7/7.5A SEER:13.0/13.0 18000/18000 BTU 1520/1480W/6.7/7.2A HSPF:7.7/7.7 500 CFM 1PH 230/208V ~ 60Hz[...]

  • Page 5

    3 HSU18VH7 18000/17800 BTU 18000/18000 BTU 1580/1560W/7/7.5A 1520/1480W/6.7/7.2A 13.0/13.0 7.7/7.7 1350rpm 500/480/450CFM 1260rpm 1180rpm 900/830rpm Toshiba/PA160X2CS-3KUU 750ml 47/46/44 47/45/44 60/62 600Psig 600Psig 40lbs 116lbs 124lbs / / R410A/67.4Oz -7℃～43℃ 1 PH 230/208V / 60Hz T1 3G2.5mm2 YR-H24 I 50g Φ16mm Φ6.35/12.7mm 7m 3/15m 33.6l[...]

  • Page 6

    4 10070808 60 86 F F 60 86 F F 60 86 F F 3.1 Basic Function[...]

  • Page 7

    Air conditioner Edition: 10070808 - 5 - 3.2 . Intr oduction to ele ctrical contr ol functions Including brief introduction to air conditioners of series models and electric control function. Brief introduction to electric control function Automatic running (applicable to fan-coil model) When the running mode is turned to automation after startin g [...]

  • Page 8

    - 6 - Air conditioner Edition: 10070808 Stat e1 S tate2 S tate3 T s- 1 T s T s +2 T s+3 W ar m start (preventing cold wind when heating running begins, applicable to fan-coil model)) When heating running begins, indoor fan will conduct the following fan control: If the temperature of indoor coil pipe is ≥ 23 ℃ , start lower wind speed; If the t[...]

  • Page 9

    - 7 - Air conditioner Edition: 100070808 Note: Sequence of defrosting actions: 9(or 7)mi nutes Compressor ON OFF Four -way valve ON OFF Outdoor fan ON OFF 5 5s 55s 1m in 1m in Freezing prevention function Under refrigerating and dehumidify i ng state, the air conditioner will control the outdoor fan as per the tempe rature Tp of the indoor coil pip[...]

  • Page 10

    - 8 - Air conditioner Edition: 10070808 temperature, sleep state, flap state. . Cancellation of function: Pressing the SLEEP button on the remote control unit for 10 times until hearing 2 sounds from the buzzer on the panel. T rial run function When the air conditioner is in OFF state, pr ess the emerg enc y switc h for 5 seconds till hearing 2 sou[...]

  • Page 11

    MODEL The SW2 select“25”O R “35” HSU18VH7 0010403861 - 9 - Air conditioner Edition: 10070 8 0 8 25 PCB running f or 1 hour unde r heating mode, the setting temperature will decrease 2 ℃ , after another 1 hou r , it will decrease the 2 ℃ again, and after 3 hours, it wil l increase 1 ℃ , and after other 3 hours, it will cease.[...]

  • Page 12

    10070808 10[...]

  • Page 13

    Air conditioner Edition: 10070808 - 11- T able for W rong Codes Wrong express power tim ing operating ★ ■ ■ indoor ambi ent temperat ure sensor abnormal Check the sensor of indoor am bient temperat ure,if the resistance v alue is 0 or ∞,the sensor is abnormal. see the following flow cha rt 1 Multim eter ★ □ □ indoor pipe temperat ure [...]

  • Page 14

    10070808 12[...]

  • Page 15

    13 10070808[...]

  • Page 16

    10070808 -14-[...]

  • Page 17

    -15- Air conditioner Edition: 10070808[...]

  • Page 18

    Indoor unit 10070808 16 Connecting wiring:A WG12X5. Power Cable:A WG12X3. Grounding line y l p p u s r e w o P Connecting wiring:A WG12X4+AWG18X2. Power Cable: A WG12X3. Grounding line y l p p u s r e w o P[...]

  • Page 19

    10070808 -17-[...]

  • Page 20

    10070808 - 18 -[...]

  • Page 21

    19 10070808[...]

  • Page 22

    WIRING DIAGRAM INDOOR UNI T 10070808 20 WIRING DIAGRAM OF INDOOR UNIT TO OUTDOOR UNIT THE DASHED UNIT IS OPTIONAL UNIT. ONLY COOLING TYPE DOESN'T HAVE THE DOTTED LINE. 1 2 NOTING： 1 CN10 CN12 CN4 N L COMP 2 3 4 5 B:BLACK W:WHITE R:RED ION GENERATOR M CN7 PCB CN1 CN2 CN3 CN9 CN8 SW1 M FAN MOTOR V E R w w w w w B L :BLUE BR:BROWN LOUVER MOTOR[...]

  • Page 23

    OUTDOOR UNIT Edition:10070808 21 B W:WHITE 4 TO INDOOR UNIT the dotted line part may not exist. Note: Because of the difference of compressor, BR:BROWN Y/G:YELLOW/GREEN Y:YELLOW B:BLACK R:RED BL:BLUE 1 2 3 W L1(L) 6 5 7 WIRING DIAGR AM OF OUTDOOR UNIT W W B R B C ～ M ～ w BR B R CM S R 0010510468 G L2(N) Grounding G line R B[...]

  • Page 24

    22 10070808 T(℃) R (KΩ) T (℃) R( KΩ) T( ℃) R( KΩ) -20 ℃ 25 1.8 14 ℃ 38 .95 4 8 ℃ 8. 441 -19 ℃ 236 .9 15 ℃ 37 .08 4 9 ℃ 8. 103 -18 ℃ 22 3.1 16 ℃ 35 .31 5 0 ℃ 7. 78 -17 ℃ 210 .1 17 ℃ 33 .63 5 1 ℃ 7. 472 -16 ℃ 19 7.9 18 ℃ 32 .04 5 2 ℃ 7. 178 -15 ℃ 186 .5 19 ℃ 30 .53 5 3 ℃ 6. 897 -14 ℃ 17 5.9 20 ℃ 29.1 5[...]

  • Page 25

    -23- T(℃) R (KΩ) T (℃) R( KΩ) T( ℃) R( KΩ) T( ℃) R(K Ω) -30 ℃ 155 .4 0 ℃ 30.8 8 30 ℃ 8.1 41 60 ℃ 2.6 66 -29 ℃ 146 .4 1 ℃ 29.4 2 31 ℃ 7.8 19 61 ℃ 2.5 77 -28 ℃ 138 .1 2 ℃ 28.0 3 32 ℃ 7.5 11 62 ℃ 2.4 91 -27 ℃ 130 .2 3 ℃ 26.7 2 33 ℃ 7.2 17 63 ℃ 2.4 08 -26 ℃ 122 .9 4 ℃ 25.4 8 34 ℃ 6.9 36 64 ℃ 2.3 29 -2[...]

  • Page 26

    HSU18VH7 10070808 -24-[...]

  • Page 27

    CIRCUIT DIAGRAM 10070808 25 PTA6 32 PTA5 31 PTA4 30 PTA3 29 PTA2 28 PTA1 27 PTA0 26 PTG2/K BD2 25 PTG1/K BD1 24 PTG0/K BD0 23 VDD 22 VSS 21 PTE7/S PSCK 20 PTE6/M OSI 19 PTE5/M ISO 18 PTE4/S S 17 PTE3/T ACH1 16 PTE2/T ACH0 15 PTE1/RX D 14 PTE0/T XD 13 PTF6 12 PTF5/ TBCH1 11 PTF7 10 NC 9 PTF4/ TBCH0 8 PTF3/ TBCH3 7 PTF2/ TBCH2 6 PTF1/T ACH3 5 PTF0/T [...]