ULTRAFORCE COMMERCIAL GAS WATER HEATER
SUF 120 thru 400 SERVICE HANDBOOK
CONTROLS – GAS VALVE SUF 199 and 250
Pressure readings may be taken on the gas valve by connecting to the pressure ports on the valve. The manifold pressure on this valve is 0”w.c. (0kPa) when the water heater is running. Refer to the gas pressure chart on page 4.
Note: Tubing shown on pressure connections is installed for manometer connections. It is not supplied with the water heater.
WARNING: Do not attempt adjustments on this gas valve unless you have a combustion analyzer. Contact the “help line” listed on the water heater for assistance.
Manifold
gas
Pressure
0” WC (0kPa)
Supply gas pressure
State Water Heaters – Technical Training Department 25 | Ashland City, Tennessee © 2009 |
Servicing should only be performed by a Qualified Service Agent |
