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6. Service Operation Circuit
● Use the service switch to select “Cooling” temporarily when the interior electric equipment has troubled.
● Setting the switch to “Cooling” causes continuous cooling room temperature control. To control the room
temperature, turn on and off the disconnect switch. To protect the compressor, wait at least 3 minutes
before turning on again.
● The fan speed is “MED”.
● Does not operate is 12V is not generated in the control circuit.
● When the service switch is used for operation, each change switch is overridden.
● Setting the service switch to “Cooling” turns on the “Power relay”.
Micro computer
(AX-3U)
FORCE COOL 33
5V
0V
R614
R629
C602
R630
Cool
Normal
0V
5. Receive circuit
Infrared signals from the wireless remote controller are received by the light receiving unit and output after
being amplified and shaped.
R211
R209
C702
ZD701
0V
0V
R212
R141
Q141
Receiver
Unit
12V
18
Micro computer
(AX-3U)
WIRELESS I/P
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