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Table Of Contents
Important Safety Information ....................................................................................................................2-4
Introduction ..................................................................................................................................................4
WallMaster Model Number Code and Serial Number Identication ............................................................5
Performance Data / Sleeve and Chassis Dimensions .................................................................................6
Electrical Data ..............................................................................................................................................7
How to Operate the Electronic WallMaster Room Air Conditioner ...........................................................8-9
Remote Control .........................................................................................................................................10
Electronic Control: Testing, Error Codes, Rebooting ...........................................................................11-12
Electronic Control Heat Pump Operation ...................................................................................................13
Coil Sensors ...............................................................................................................................................13
Components Testing .............................................................................................................................13-14
Refrigeration System Sequence of Operation ...........................................................................................15
R-410A Sealed System Repair Considerations .........................................................................................16
Sealed System Refrigeration Repairs / Charging .................................................................................17-20
Hermetic Components Check ....................................................................................................................21
Reversing Valve Description/Operation .....................................................................................................22
Testing the Coil and Reversing Valve ...................................................................................................23-24
Compressor Checks .............................................................................................................................25-26
Compressor Replacement ....................................................................................................................27-28
Routine Maintenance ............................................................................................................................29-30
Performance Test Data Sheet ....................................................................................................................31
Troubleshooting ....................................................................................................................................32-41
Wiring Diagrams ...................................................................................................................................42-44
Installation Accessories .............................................................................................................................45
Installation Instructions for “WSD” Sleeve ............................................................................................46-47
Installation Instructions for Bafe Adapter Kit ............................................................................................48
Seal Gasket Installation Instructions ..........................................................................................................49
Installation Instructions for Internal Drain Kit (IDK) ....................................................................................50
Assembly and Installation Instructions for Drain Kit (DK) ..........................................................................51
Installation Instructions for Sub-Base ........................................................................................................52
Installation Instructions for Architectural Grille Model AG-48-49 ..........................................................53-54
Warranty ....................................................................................................................................................55
Technical Assistance ..................................................................................................................................56
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