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ELECTRIC CIRCUIT DIAGRAM
7
1) FUNCTIONAL CIRCUIT DIAGRAM
a
42HWG007/009/012 & HWG195/225/305C-SERIES
•
After the power I/O button is pressed once, the Power-relay and AC SWITCH are turned
on or off per the remote control setpoint.
– AC SWITCH U9 is controlled per the fan speed selection.
– Power-relay K1 is controlled per the operation mode selection.
•
If the power I/O button is pressed once more, the Power-relay and AC SWITCH are turned
off and the unit stops operation.
•
The unit turns on or off according to the temperature setpoint by sensing the room air
temperature through thermistor.
•
If the fan speed selection is set to the auto position, the fan speed is automatically con-
trolled according to the temperature difference between room temperature and tempera-
ture setpoint.
Summary of Contents for HWG195C
Page 36: ...35 CONTROL BLOCK DIAGRAM 6 1 42HWG007 009 012 018 024 HWG195C 225C 305C 455C 605C...
Page 37: ...2 42HQG007 009 012 018 024 HWG195 225 305 455 605H SERIES 36...
Page 43: ...b MAIN CONTROL PART 42HWG018 024 42HQG018 024 HWG455 605C HWG455 605H 42...
Page 45: ...c REMOTE CONTROL PART 44...
Page 48: ...47 c CONTROL PCB SOLDERING SIDE 42HWG018 024 42HQG018 024 HWG455 605C HWG455 605H...
Page 49: ...48 d CONTROL PCB COMPONENTS SIDE 42HWG018 024 42HQG018 024 HWG455 605C HWG455 605H...
Page 60: ...59 TROUBLE SHOOTING 10...
Page 64: ...EXPLODED DIAGRAM AND PARTS LIST 12 63...
Page 89: ...Carrier Corporation P N 42KG8K54600 Version 1 0...