90 Outdoor Unit
Test Run
Refrigerant Checking Function (Setting 2)
This function judges refrigerant leakage and overcharging
It can be used with refrigerant auto charging function.
Inspection Start
Press black button for 2 seconds
Proper Temperature
Thermo off indoor unit
Decide Refrigerant Quantity
Indoor Unit OFF
Too much
Refrigerant
Not enough
Refrigerant
Cannot tell
Quantity
Refrigerant
Quantity
Normal
Gas/Liquid
pipe direct
connection
Based on Refrigerant Quantity
NO
NO
YES
YES
Display Error
Display Error
Press black button for 2 seconds
Press black button for 2 seconds
Data Reset and Wait
End
Note
1. In case air temperature is out of guaranteed temperature, refrigerant checking function may end without performing
refrigerant checking. Use guaranteed temperature range only.
2. During the process of judging refrigerant amount, if the cycle isn't stable, refrigerant checking function may end
without performing refrigerant checking.
DIP Switch Settings
Warning : Please reset Main PCB before starting this function
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