Controls - Gas Valve Suf 120; Controls - Gas Valve Suf 150 - State Water Heaters SUF 130 300 Service Handbook

CONTROLS – GAS VALVE SUF 120
The gas control valve on the SUF 120 has a
built i n adj ustable pre ssure regulator. T he
adjustment screw i s a ccessed by removing
the cap screw m arket regulator i n t he
illustration.
Inlet gas pressure may be read at the inlet
pressure tap only if the manual shut off valve
(gas cock) is in the "ON" position. Leaving
the knob in the "OFF" position will not allow
the bu rner to fi re an d will genera te a fault
code on th e UIM ( Universal I nterface
Module).
CONTROLS – GAS VALVE SUF 150
The gas control valve on the SUF 150 is has
a built in pressure regulator. The regulator
may be adjusted 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 switch is set
the "ON" position.
State Water Heaters – Technical Training Department 23
ULTRAFORCE COMMERCIAL GAS WATER HEATER
SUF 120 thru 400 SERVICE HANDBOOK
Servicing should only be performed by a Qualified Service Agent
Ashland City, Tennessee © 2009
198152-002