Function Of Automatic Wiring/Piping Correction - Pioneer YN020GMFI22M2D Installation Manual

Function of Automatic Wiring/Piping Correction

Automatic Wiring/Piping Correction Function
Newest models are capable of automatic correction of wiring/piping error. Press the "check switch" on
the outdoor unit PCB board 5 seconds until LED display "CE", which mean this function is working,
Approximately 5-10 minutes after the switch is pressed, the "CE" disappear the wiring/piping error
will be corrected, and wiring/piping is properly connected.
How To Activate This Function
1. Check at outside temperature is above 5℃.
(This fuction does not work when outside temperature is not above 5℃)
2. Check that the stop valves of the liquid pipe and gas pipe are open.
3. Turn on the breaker and wait for at least 2 minutes.
4. Press the check switch on the outdoor PCB board unit LED display "CE".
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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 switch
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
11