Table Of Contents - Heat Controller DMH18DB-1 Service Manual

Multi type Air Conditioner Service Manual

TABLE OF CONTENTS

Combination table.......................................................................................................................................3
Safety Precautions......................................................................................................................................4
Dimensions................................................................................................................................................10
Indoor Unit.............................................................................................................................................10
Outdoor Unit ...........................................................................................................................................11
Product Specifications .............................................................................................................................12
A-DMH18DB-1 .......................................................................................................................................12
B-DMH18DB-1 .......................................................................................................................................13
Installation .................................................................................................................................................14
Installation Parts.....................................................................................................................................14
Installation Tools.....................................................................................................................................14
Select the best location .........................................................................................................................15
Piping length and elevation ....................................................................................................................16
Fixing Installation Plate(Standard Type).................................................................................................17
Flaring Work and Connection of Piping..................................................................................................18
Flaring work............................................................................................................................................18
Connecting the Piping ............................................................................................................................19
Connecting the Cable between Indoor Unit and Outdoor Unit .............................................................25
Connect the cable to the Indoor unit. .....................................................................................................25
Connect the cable to the Outdoor unit....................................................................................................26
Connection method of the connecting cable(Example) ..........................................................................27
Connect the cable to the indoor unit.......................................................................................................28
Checking the Drainage, Forming the Pipings and Long Pipe Setting .................................................29
Checking the drainage............................................................................................................................29
Forming the piping..................................................................................................................................30
Air Purging and Evacuation .....................................................................................................................31
Checking method ...................................................................................................................................31
Evacuation..............................................................................................................................................32
Charging ....................................................................................................................................................33
Test Running .............................................................................................................................................34
Operation ...................................................................................................................................................35
Function of control..................................................................................................................................35
Function of Indoor Unit ...........................................................................................................................40
Function of Outdoor Unit ........................................................................................................................41
Remote Control Operation .....................................................................................................................42
Disassembly ..............................................................................................................................................43
Indoor Unit..............................................................................................................................................43
Schematic Diagram...................................................................................................................................46
Electronic Control Device .......................................................................................................................46
Wiring Diagram.......................................................................................................................................49
Components Locations...........................................................................................................................50
Troubleshooting Guide .............................................................................................................................54
Refrigeration Cycle Diagram ..................................................................................................................54
Self-diagnosis Function ..........................................................................................................................55
Cycle Troubleshooting Guide..................................................................................................................56
Electronic Parts Troubleshooting Guide .................................................................................................57
Error Code..............................................................................................................................................62
2-way, 3-way Valve ....................................................................................................................................66
2 Multi type Air Conditioner