SBN TANK TYPE COMMERCIAL GAS WATER HEATER
SERVICE HANDBOOK
The supply gas pressure is normally measured at the gas valve inlet gas pressure tap,
if available, when the gas is flowing. The manifold gas pressure
is measured at the manifold pressure tap of the gas valve when the gas is flowing.
Gas valves used are 24 volt AC
The top view of the gas valve, shown on the right, shows the Main Gas Regulator, Manifold Pressure Tap, Top Knob, and the Limited Bleed Vent Port. The main gas regulator is found under the silver cap screw. It is factory preset to 3.5 inches W.C. and
adjusts gas pressure output from 3.0 to 5 inches water column. Caution: Always test the manifold pressure at the outlet when the gas is flowing.
Gas Valve
Inlet View
Top View
©2003 | 10 | Technical Training Department |
Ashland City, Tennessee