2 Multi 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 ...........................................................................................................................................21
Product Specifications ............................................................................................................................22
Installation .................................................................................................................................................32
Select the best location of indoor unit ....................................................................................................32
How to fix ...............................................................................................................................................35
Piping and Drainage of Indoor Unit ........................................................................................................42
Connection of indoor unit piping.............................................................................................................43
Remote Controller Installation ................................................................................................................66
Connecting Pipings and the cable to Outdoor unit .................................................................................68
Checking the Drainage and Pipe forming...............................................................................................70
Maximum Length of Pipe and Extra Charge of Refrigerant Charge.......................................................76
Test Running ..........................................................................................................................................83
System Layout and Piping Length..........................................................................................................86
Installation ..............................................................................................................................................90
Installation of The Main Unit...................................................................................................................91
Connection of Piping ..............................................................................................................................92
Connection of Wiring ..............................................................................................................................93
Operation ..................................................................................................................................................94
Function of control..................................................................................................................................94
Function of Indoor Unit ...........................................................................................................................99
Function of Outdoor Unit ......................................................................................................................105
Remote Control Operation ...................................................................................................................106
Control Devices and Function ...............................................................................................................114
Simple Central Control .........................................................................................................................114
Term of Each part and Function ...........................................................................................................114
Electrical wiring ....................................................................................................................................115
Deluxe Central Control .........................................................................................................................121
Disassembly of the parts (Indoor unit) .................................................................................................127
Indoor unit ............................................................................................................................................127
Schematic Diagram.................................................................................................................................142
Electronic Control Device .....................................................................................................................142
Wiring Diagram.....................................................................................................................................151
Components Locations.........................................................................................................................155
Troubleshooting Guide...........................................................................................................................173
Refrigeration Cycle Diagram ................................................................................................................173
Self-diagnosis Function ........................................................................................................................175
Cycle Troubleshooting Guide................................................................................................................176
Electronic Parts Troubleshooting Guide ...............................................................................................177
General Information..............................................................................................................................182
(3-way) Valve ...........................................................................................................................................201
Exploded View & Replacement Parts List ............................................................................................205
Indoor Unit ...........................................................................................................................................205
Outdoor Unit ........................................................................................................................................245
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