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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 “Stick relay” and “Power relay”.
Micro computer
(AX-3U)
FORCE COOL 42
5V
0V
R606
Cool
Normal
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