Controls - Gas Control Valve Suf 120; Controls - Gas Control Valve Suf 150 - State Water Heaters SUF60 Service Handbook

CONTROLS – GAS CONTROL VALVE SUF 120
The gas control valve on the SUF 120 has a built-in adjustable pressure regulator. The adjustment screw is
accessed by removing the cap screw marked "regulator" in the illustration.
Inlet gas pressure may be read at the inlet pressure tap only if the manual shut off valve is in the "ON"
position. Leaving the knob in the "OFF" position will not allow the burner to fire and will generate a fault
code on the UIM (User Interface Module).
CONTROLS – GAS CONTROL VALVE SUF 150
The gas control valve on the SUF 150 has a built-in pressure regulator. The regulator may be adjusted by
removing the cap screw.
Inlet gas pressure may be read at the inlet pressure tap only if the manual switch is set to the "ON"
position.
32 Servicing should only be performed by a Qualified Service Technician