SOI 04.05 FV 22/57 599 36 62-62
MODULATION CONTROL MOTOR (STEP-BY-STEP)
The modulation control motor of the solenoid valves is a unipolar step-by-step type.
Please find below the connection diagram of the motor and the rotation diagram.
Fig. 17
4.4.4 MAIN SAFETY SOLENOID VALVE
The function of the main safety valve is to provide an extra safety feature in controlling the
delivery of gas.
The internal structure and the operation of the valve are identical to the EM section of the
burner control valves described in the corresponding section.
Fig. 17
1 - ELECTRICAL CONNECTOR (FASTON)
2 - SOLENOID
3 - GAS DELIVERY COUPLING
4 - GAS INLET COUPLING
BLK
BLK Black
RED Red
BRW Brown
ORG Orange
YEL Yellow
BLK RED
RED
ORG
BRW
YEL
BRW
ORG
YEL
RED/