2Multi type Air Conditioner
Multi type Air Conditioner Service Manual
TABLE OF CONTENTS
Model Number Nomenclature....................................................................................................................3
Symbols Used in this Manual...................................................................................................................5
Safety Precautions......................................................................................................................................6
Dimensions................................................................................................................................................12
Indoor Unit.............................................................................................................................................12
Outdoor Unit...........................................................................................................................................20
Product Specifications ............................................................................................................................22
Installation.................................................................................................................................................28
Select the best location of indoor unit ....................................................................................................28
How to fix ...............................................................................................................................................31
Piping and Drainage of Indoor Unit........................................................................................................38
Connection of indoor unit piping.............................................................................................................39
Remote Controller Installation................................................................................................................62
Connecting Pipings and the cable to Outdoor unit.................................................................................64
Checking the Drainage and Pipe forming...............................................................................................66
Maximum Length of Pipe and Extra Charge of Refrigerant Charge.......................................................71
Test Running ..........................................................................................................................................78
System Layout and Piping Length..........................................................................................................81
Installation..............................................................................................................................................82
Installation of The Main Unit...................................................................................................................83
Connection of Piping..............................................................................................................................84
Connection of Wiring..............................................................................................................................85
Operation ..................................................................................................................................................86
Function of control..................................................................................................................................86
Function of Indoor Unit...........................................................................................................................91
Function of Outdoor Unit........................................................................................................................97
Remote Control Operation .....................................................................................................................98
Control Devices and Function ...............................................................................................................106
Simple Central Control.........................................................................................................................106
Term of Each part and Function...........................................................................................................106
Electrical wiring ....................................................................................................................................107
Deluxe Central Control.........................................................................................................................113
Disassembly of the parts (Indoor unit) .................................................................................................119
Indoor unit ............................................................................................................................................119
Schematic Diagram.................................................................................................................................133
Electronic Control Device.....................................................................................................................133
Wiring Diagram.....................................................................................................................................142
Components Locations.........................................................................................................................146
Troubleshooting Guide...........................................................................................................................161
Refrigeration Cycle Diagram................................................................................................................161
Self-diagnosis Function........................................................................................................................166
Cycle Troubleshooting Guide................................................................................................................167
Electronic Parts Troubleshooting Guide ...............................................................................................168
General Information..............................................................................................................................173
(3-way) Valve ...........................................................................................................................................189
Exploded View & Replacement Parts List ............................................................................................193
Indoor Unit ...........................................................................................................................................193
Outdoor Unit ........................................................................................................................................222