Daikin FTXN-LV - Minimum Run Control; Auto Restart Function; 4-Way Valve Control; Defrost Cycle Details

TS13-01 Troubleshooting manual 8
MINIMUM RUN CONTROL
To prevent frequent compressor ON/OFF & to allow pressure equalization
• The compressor will be on 3 minutes stand-by after turning OFF before it is allowed to turn ON.
• OD fan OFF delay to improve pressure equalization & to prevent refrigerant from entering into
evaporator.
AUTO RESTART
- Factory pre-set.
- Allow unit to automatically resume the same operating mode it was in before a power failure.
4-WAY VALVE CONTROL
- Change over switching is only carried out during operation.
- OFF delayed is applied when the coil switches from ON to OFF, i.e. A5LCY Series I - 45 second,
Operating mode
4-way valve is
Heat, except for defrost
ON
Cool
Dry
Defrost
OFF
DEFROST CYCLE
During defrost
RXN-LV
Compressor
ON
4-way valve
OFF
EXV in operation room
Fixed opening
EXV in operation stop room
-
Outdoor fan
OFF
Indoor fan
OFF