Daikin FDM24PEVLK Operation And Installation Instructions Manual page 42

WARNING
The default setting of DIP switch included in the WZ14301-1 main board of outdoor unit:
DIP switch (SA1): Position 1,2,3 to "ON".
In summary: In "heating" mode of A/C unit, after the compressor has been operating for t minutes
continuously, the defrosting will starts if the defrosting temp sensor has been in T1°C or
under T1°C for 1 minute continuously. At the same time, the 4-way valve is electrifi ed, the
fan motor of outdoor unit stops running.
The defrosting will stop after it goes on for 10 minutes continuously or the temp. sensor
detects the ambient temperature over T2°C. At the same time, the 4-way valve is power
cut, the fan motor of outdoor unit is electrifi ed and the auxiliary electric heating device
runs as per the setting of wired controller.
The defrosting stops immediately if the A/C is diverted to "COOLING" mode while the
outdoor unit is defrosting.
Forced defrosting: When the forced defrosting button is pushed, the A/C will start to defrost promptly. At the
same time, the 4-way valve is electrifi ed, the fan motor of outdoor unit stops running and
the auxiliary electric heating device is electrifi ed. The defrosting will stop after it goes on
for 10 minutes or the temp sensor detects the ambient temperature over T2. At the same
time, the 4-way valve is power cut, the fan motor of outdoor unit is electrifi ed and the
auxiliary electric heating device runs as per the setting of wired controller.
DIP switch (SA1):
Note 1:
ON ON
1 0
40
Note 2:
The Mainboard LED display instruction
Normal Operation
Defrosting
High pressure protection
Low pressure protection
Outdoor ambient Temp.
Sensor Malfuction
Defrosting Temp. Sensor
Malfuction
These two LEDs are for heat pump models only.
LED1
Blinks every 0.5s Blinks every 0.5s
on
Blinks every 0.5s
off Blinks every 0.5s
off
on
LED2
on
off
on
off
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