Controls - Gas Valve , Orifice Chart- Suf300,400 - State Water Heaters SUF 130 300 Service Handbook

ULTRAFORCE COMMERCIAL GAS WATER HEATER
CONTROLS – GAS VALVE , ORIFICE CHART– SUF300,400,
The gas cont rol va lve h as a bu ilt in field
adjustable pressure regulator. The regulator
may be adjusted by removing the cap screw
marked "regulator". The adjustment screw is
underneath. The g as val ve for the SUF
Natural gas model is shown above. This is
a 24V. solenoid operated gas valve.
Manual Gas
Control Knob
Low Gas
Pressure
Switch
Refer to the replacement parts information at
the back of this manual for part numbers for
Natural and LP gas valves for all SUF 300,
400, and models.
State Water Heaters – Technical Training Department 26
SUF 120 thru 400 SERVICE HANDBOOK
24V
Solenoid
connection
Servicing should only be performed by a Qualified Service Agent
ORIFICE CHART – SUF 300,400,
Model 300
Natural .27
LP .189"
Ashland City, Tennessee © 2009
400
4" .314"
.219"
198152-002