Mitsubishi Heavy Industries FDTCVA SERIES Technical Manual page 263

Models FDCVA402HENAR, 502HENAR, 602HENAR
FDCVA402HESAR, 502HESAR, 602HESAR, 802HESAR, 1002HESAR
(This fi gure shows FDCVA402~602 model. The component layout of FDCVA802 and 1002 models are basically the same
except for partial arrangement.)
Expansion valve
(SM1, 2)
CNEEV1
Thermistor
LED4
(802, 1002 only)
(Tho-H)
LED5
LED6
Thermistor
(802, 1002 only)
(Tho-R2)
Thermistor
( Tho-R1, Tho-D )
Tho-S, Tho-A
Thermistor
(IPM)
Lower pressure
sensor
±
Function of DIP switch (SW3)
Switch Function
ON Defrost setting select for Cold regions
SW3-1
OFF Defrost setting select for Normal
ON Snow-guard fan control Effective
SW3-2
OFF Snow-guard fan control Invalid
Test run operation Effective
ON
SW3-3
Test run operation Invalid
OFF
ON Test run operation Heating
SW3-4
OFF Test run operation Cooling
±
Function of DIP switch (SW4)
Switch Function
ON Defrost prohibited period 37 min.
SW4-4
OFF Defrost prohibited period 45 min.
Note (1) Set SW4-4 as normally ON.
SW5 SW3 SW4 Model setting switch
CNEEV2 CNJ CNI1
CNI3
J1
J2
J3
J4
CNV
CNFAN2
Pump down switch
SW1
-
JSW1
CNI5
CNW2
52X6
KN6
CNFAN1
CNR CNN2
CNA1
Fan motor
Solenoid valve
Crank case heater
(802, 1002 only)
±
Function of DIP switch (SW5)
Switch
ON High pressure control for existing piping Valid
SW5-1
OFF High pressure control for existing piping Invalid
Cancels compressor dilution protection timer
ON
SW5-2
Normal
OFF
ON Cancels compressor starter III
SW5-3
Normal
OFF
262
-
High pressure switch
52X5
52X4 52X3 52X2 52X1
KN5 KN4 KN3 KN2
CNN1 CNS CNF CNM
4way valve
Magnetic contactor
(802, 1002 only)
Function
Outdoor unit
power supply