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6.4.3 Refrigerant Recovery Function
Enter refrigerant recovery mode: turn on the unit within 5 min after energization and at 16°C cooling mode. Press remote
controller light off button successively for 3 times within 3s and the unit will enter refrigerant recovery mode, displaying Fo.
The signal will be sent to the outdoor unit.
Exit refrigerant recovery mode: during refrigerant recovery, if any signal from remote controller is received or refrigerant
recovery lasts for 25min, it will exit this mode.
Action of entering refrigerant recovery mode: the indoor fan will operate in Cool mode. The fan speed is high and set
temperature is 16°C. The horizontal louver will be at the smallest angle.
Action of exit refrigerant recovery mode: the indoor fan will operate according to the last remote control setting.
6.4.4 Pre-operation Function
When Cool mode at 30°C is set, press “-, +, -, +, -, +” successively for 3s, it will enter pre-operation mode. The signal will
be sent to the outdoor unit.
Pre-operation mode: it performs cooling operation (indoor fan does not operate) and display “dd”. After exiting pre-
operation mode, the indoor unit will stop displaying “dd”. If the signal of “wrong wire connection or expansion valve
malfunction” is received, “dn” will be displayed.
6.4.5 Mode Conflict
When the mode of started unit is different from that of operating unit, the indoor unit will display mode conflict code “E7”.
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