Specifications

1086
FDC-HKXR
Defective indoor unit PCB → Replace.
NO
YES
YES
(1)
Defective SVH (high
pressure gas side solenoid
valve) → Replace.
NO
YES
Defective relay (XH) → Replace.
Defective relay → Replace.
Is heat
outputted?
NO
Are solenoid
valve control relays
OK?
Is AC 200V applied
at shunt controller connector
CnB?
Heating operation does not start
4)
Note (1) This is applicable only when a concentrated
shunt controller is used.