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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
Functional Components ...............................................................................................................................8
How to Operate the Electronic WallMaster Room Air Conditioner ..........................................................9-10
Remote Control ..........................................................................................................................................11
Electronic Control: Operation, Testing, Error Codes, Rebooting ..........................................................12-13
How to Operate the WallMaster with Rotary Controls, Control Testing ......................................................14
Electronic Control Heat Pump Operation ...................................................................................................15
Components Testing ..............................................................................................................................15-17
Refrigeration System Sequence of Operation ............................................................................................18
Sealed System Refrigeration Repairs / Charging ..................................................................................19-22
Hermetic Components Check ................................................................................................................23-26
Reversing Valve Description/Operation ......................................................................................................24
Testing the Coil and Reversing Valve ....................................................................................................25-26
Compressor Checks ..............................................................................................................................27-28
Compressor Replacement .....................................................................................................................29-30
Routine Maintenance .............................................................................................................................31-32
General Troubleshooting .......................................................................................................................33-39
Wiring Diagrams ....................................................................................................................................40-44
Installation Accessories ..............................................................................................................................45
Installation Instructions for “WSC” 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
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