Gas Line Requirements; Burner Adjustment; Air Collar - Pitco W14S-S WF Installation, Operation And Maintenance Manual

1.4.4.1 Gas Line Requirements

A properly installed gas supply system will deliver 7.0 ±2.0" w.c. natural gas (11.0 ±2.0" w.c. LP) to all
appliances connected to the line, operating at full demand.

1.4.4.2 Burner Adjustment

The burners must be adjusted to deliver optimum flame. Adjust the burner flame using the following
procedure.
a. Ensure that the gas control valve is in the OFF position. Remove the manifold pressure tap plug and
connect an accurate pressure gauge (range of 0-16" w.c. in 0.1" increments) or manometer.
b. Light the pilot burner (see 1.4.2) for the unit being tested and adjust the thermostat to light the main
burners.
c. The installed pressure gauge reading should be the same, ±0.1", as that marked on the data plate inside
the door. If the pressure is correct go to step e, if not, adjust the pressure.
d. To adjust the pressure, remove the regulator adjustment screw cover. Use a flat tip screwdriver to adjust
the screw until the proper pressure is reached. Turning the screw clockwise will increase the pressure,
counterclockwise will decrease the pressure.
e. When the pressure is correct, install the regulator adjustment screw cover.
f. To remove the pressure gauge, turn gas control valve to OFF. Remove the gauge and install the pressure
tap plug.
Figure 1-5 Air Collar
1-13