Mitsubishi Heavy Industries FDTCVA SERIES Technical Manual page 262

Model FDCVA302HENR
SW4
Lower pressure
sensor
(PSL)
Electronic
expansion valve
(EEVC,EEVH)
Function of DIP switch (SW3, 5, 7, 8)
±
Switch
Defrost setting select for Cold regions
ON
SW3-1
Defrost setting select for Normal
OFF
ON Snow-guard fan control Effective
SW3-2
Snow-guard fan control Invalid
OFF
ON Defrost prohibited period 37 min.
SW3-4
Defrost prohibited period 45 min.
OFF
Test run operation
ON
SW5-3
OFF Normal
Test run operation Heating
ON
SW5-4
OFF Test run operation Cooling
External PCB
SW8
1
Thermistor
(Tho-R1,Tho-D,Tho-S,Tho-A)
CNTH
SW4
CNPS CNEEV1 CNEEV2 CNFAN
Fan motor
Solenoid valve
(SV1)
4way valve
Function
SW5 SW9
Pump down switch
SW9
SW8 SW5
2 3 1 2 3 4
CNN CNS CNR CNH
Crank case heater
Switch
SW7-1
SW7-2
SW8-2
SW8-3
SW7 SW3
SW7 SW3
1 2 3 1 2 3
261
- -
CNW
High pressure switch
(63H1)
Function
Changes the fan control at installation of wind direction duct.
ON
Normal
OFF
ON Anti-defrost : Enabled
Anti-defrost : Disabled
OFF
ON Cancels compressor dilution protection timer.
Normal
OFF
Cancels compressor starter III.
ON
OFF Normal
4
Thermistor
(Tho-IP)