c 42HWG018/024 & HWG455/605C-SERIES
• After the power I/O button is pressed once, the relay and AC SWITCH are turned on or
off per the remote control setpoint.
– AC SWITCH U9 is controlled per the fan speed selection.
– Relay K1 is controlled per the operation mode selection.
• If the power I/O button is pressed once more, the 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
controlled according to the temperature difference between room temperature and
temperature setpoint.
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