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Function of Automatic Wiring/Piping Correction
Automatic Wiring/Piping Correction Function
More recent models now feature automatic correction of wiring/piping errors. Press the "check
button" on the outdoor unit PCB board for 5 seconds until the LED displays "CE", indicating that
this function is working, Approximately 5-10 minutes after the switch is pressed, the "CE" disappears,
meaning that the wiring/piping error is corrected and all wiring/piping is properly connected.
How To Activate This Function
1. Check that outside temperature is above 5℃.
(This function does not work when outside temperature is below 5℃)
2. Check that the stop valves of the liquid and gas pipe are open.
3. Turn on the breaker and wait at least 2 minutes.
4. Press the check switch on the outdoor PCB board unit LED display "C E".
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Correct
Terminal
block
Liquid/
Gas pipe
Outdoor unit
Incorrect wiring
Terminal
block
Liquid/
Gas pipe
Outdoor unit
Incorrect wiring
Terminal
block
Liquid/
Gas pipe
Outdoor unit
Check
LED display
B
A
Indoor unit B
B
A
Indoor unit A
B
A
Indoor unit B
B
A
Indoor unit A
B
A
Indoor unit B
B
A
Indoor unit A
button
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