Table Of Contents - Haier HSU12 Service Manual

Table of Contents

Table Of Contents2
Introduction4
Safety Cautions4
Caution In Repair4
Cautions Regarding Products After Repair5
Inspection After Repair7
Using Icons8
Using Icons List8
List Of Functions9
Specifications10
Printed Circuit Board Connector Wiring Diagram12
Indoor Unit Connectors12
Pcb13
Connectors14
Outdoor Unit16
Funcitions And Control22
Main Functions And Control Specification Of Indoor Unit22
Temperature Adjusting Function22
Main Functions23
Special Functions24
Powerful Running24
Silent Running25
Air Cleaning25
Timed Running25
Sleeping Function26
Trial Running26
Power Failure Compensation26
Rated Operation27
Main Functions And Control Specification Of Outdoor Unit28
Outdoor Unit Operation Frequency And Control28
Outdoor Fan Control29
Four-Way Valve Control29
Outdoor Defrosting Control29
Ptc Output Control30
System Protection Function31
Outdoor Temperature Limit32
Special Features32
Fault Display And Treatment32
Function Of Main Thermistor33
Value Of Thermistor34
Intdoor Unit34
Room Sensor34
Pipe Sensor37
Ambient Sensor, Suction Sensor, Defrosting Sensor41
Discharging Sensor45
System Configuration49
Instruction49
Parts And Functions50
Indoor Unit50
Remote Controller50
Loading Of The Battery50
Clock Set51
Base Operation51
Emergency Operation And Test Operation51
Sleep Operation52
Power/Soft Operation52
Health Operation52
Timer On/Off On-Off Operation53
Health Airflow Operation53
Maintenance54
For Smart Use Of The Air Conditioner54
Replacement Of Air Purifying Filter54
Air Filter Cleaning54
Cautions55
Trouble Shooting56
Service Diagnosis57
Caution For Diagnosis57
Problem Symptoms And Measures57
Error Codes And Description Indoor Display58
Thermistor Or Related Abnormality (Indoor Unit)59
Indoor Fan Motor Malfunction60
Ipm Protection62
The IPM and Outdoor PCB Don't Communicate or Related Abnormality63
Thermistor Or Related Abnormality(Outdoor Unit)64
Overheat Protection For Exhaust Temperature65
The Eeprom Abnormality (Indoor Or Outdoor Unit)66
Communication Error Between The Indoor And Outdoor Units67
Power Supply Over Or Under Voltagve Fault69
Loop Of The Station Detect Error70
Installations71
Necessary Tools For Installation71
Selection Of Installation Place71
Drawing For The Installation Of Indoor And Outdoor Units71
Accessory Parts72
Selection Of Pipe72
Check For Installation And Test Run74
Removal Procedure75
For 12K Indoor Unit75
Removal Of Front Panel75
Removal Of Air Filter77
Removal Of The Blade78
Removal Of Front Case79
Removal Of Vertical Blades And Display Board81
Removal Of Fan Drain Pan And Electrical Box82
Removal Of Fan Motor And Heat Exchanger83
For 18K Indoor Unit85
Removal Of Horizontal Blade And Front Grille87
Removal Of Drain Pan89
Removal Of Vertical Blades And Swing Motor90
Removal Of Electrical Box91
Removal Of Heat Exchanger92
For 12/18K Outdoor Unit94
Removal Of Outdoor Panel94
Removal Of Fan And Fan Motor98
Removal Of Fan Motor Bracket And Partition100
Removal Of Computor And Heat Exchanger102
Appendix104
Piping Diagrams104
Cooling Mode104
Heating Mode104
Wiring Diagrams105
For 12K105
For 18 K106
Circuit Diagrams109
Module Board Circuit Diagrams112
Control Board Circuit Diagrams112