Figure 4-11. Wiring Diagram - Controlling Solenoid Valves - Syn-Tech Systems FuelMaster FMU-2500 Classic Installation Manual

Figure 4-11. Wiring Diagram – Controlling Solenoid Valves
Perform the following to control solenoid valves:
1) Inside the dispenser junction box, locate the RESET COMPLETE wire feeding the solenoid
valve for hose 1. It is most likely an orange wire from the dispenser reset mechanism wire-
nutted to an AC input to the solenoid valve. There should be power present when the
dispenser pump handle is turned on, and power should be removed when the pump handle
is turned off.
2) Remove dispenser power at the circuit breaker panel.
3) Run two wires from the FMU to the dispenser junction box.
4) In the FMU, connect one wire to LN1, and the second to LD1.
5) In the dispenser, disconnect the RESET COMPLETE wire found in step 1) from the solenoid
valve.
6) Connect the wire running from LN1 to the orange RESET COMPLETE wire.
7) Connect the wire running from LD1 to the VALVE HOT wire.
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