Technibel PHRIE Series - Page 74

74
3.2.8 REFRIGERANT CIRCUIT POWER BOARD FOR UNITS 257 / 307
A3 control board A246VH8
Service Remocon
(RC-P CN039)
Board programming
PAC checker
(
ROM
)
Board ctrl
signal (OC)
4 way valve (20S)
Expansion
valves
(MOV1-2)
Cranckcase heater
(20S)
Fan supply
Fan supply
Fan control
Fan control
Power relay
Ctrl (MG-SW)
« Power » LED
EEPROM LED