ULTRAFORCE COMMERCIAL GAS WATER HEATER
SUF 120 thru 400 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 is accessed 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 burner to fire and will generate 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 | Ashland City, Tennessee © 2009 |
Servicing should only be performed by a Qualified Service Agent |
