Table of Contents Models/Tech Data Sheet Location Grille/Filter Removal Power Supply Fan Operation Adjustment Temperature Limiting Switches Vent Control - PC Board Service Blower and Fan Service Capacitors Cool Only (non-electronic) Wiring Diagram/Schematic Cool Only (electronic) Wiring Diagram/Schematic Heat / Cool Wiring Diagram/Schematic 115V Cool Only Fast Moving Parts Heat Pump Wiring Diagram/Schematic 115V Current/Differential Temperature Check...
2004 ROOM AIR CONDITIONER Three New Model Series (Cool Only, Heat/Cool, Heat Pump) New 26” ROOM AIR Conditioners are being introduced. The line-up includes COOL ONLY, HEAT PUMP, AND HEAT/COOL models. This bulletin will introduce those models with examples from electro-mechanical and electronic remote units.
POWER SUPPLY AND CURRENT LEAKAGE: ALL MODELS MAXIMUM CURRENT LEAKAGE: 0.5 MILLIAMP MAXIMUM GROUND PATH RESISTANCE: 0.1 OHM GRILLE REMOVAL Component Access: Control components can be accessed by remov- ing the Front Cover. The unit must be removed from the case to access fans and refrigerant components.
FAN OPERATION ADJUSTMENT The Fan operation can be set either for continous operation or cycle. The unit comes preset from the factory for continous operation. To change the setting: Insert small screwdriver through the hole in the control cover and slide the switch down for the fan to cycle, or up for continuous operation.
VENT CONTROL Vent control is located behind the front grille on the right side of the air discharge area. When set to CLOSE, only the air inside the room will be circulated and conditioned. When set to OPEN, some inside air is exhausted to the outside. The air conditioner is shipped with the vent CLOSED. To Open or Close the Vent: 1.
BLOWER AND FAN SERVICE The air conditioner will have to be removed from the window to service the indoor blower/motor and the outdoor fan/motor. To Service Blower Fan: In order to access the fan and motor, you must diasassemble the spacer plastic fan housing. 1.
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BLOWER AND FAN SERVICE (Cont’d.) 4. Remove 4 Phillips head screws that mount plastic housing sides to coil hous- ing. REMOVE SIDES 5. Remove 4 Phillips head screws that mount coil housing to bracket. INSIDE FAN MOTOR REMOVE COIL HOUSING 4.
CAPACITORS The electronic air conditioner has 3 start/run capacitors - one for each fan (blower/fan) and compressor. They are accessed by removing the grille, front pc board cover as previously de- scribed. Technicians will have full access to the capacitors with the pc board cover removed. OUTDOOR FAN START/RUN CAPACITOR BLOWER FAN START/RUN CAPACITOR COMPRESSOR START/RUN CAPACITOR...