Controls - Gas Valve, Orifice Chart - Suf 500 - State Water Heaters SUF 130 THRU 500 User Manual

CONTROLS – GAS VALVE, ORIFICE CHART – SUF 500
The gas control valve has a built-in field adjustable pressure regulator. The regulator may be adjusted by
removing the cap screw marked "regulator". The adjustment screw is underneath. The gas valve for the
SUF 500 Natural gas model is shown below. This is a 24V. solenoid operated gas valve.
For Series 100 and 101:
For Series 104:
ORIFICE CHART – SUF 500
Series 100/101
Natural .347"
LP .241"
36
104
No Orifice
.241"
Servicing should only be performed by a Qualified Service Agent