FULTON PHW 1000, Installation, Operation And Maintenance Manual

Page: 51 / 94

Fulton Heating Solutions, Inc. -- PHW Manual -- 2010-0713
Page 51
running. Inlet pressure for Propane should be a minimum of 11”WC while running.
See factory test fire sheet for manifold operating pressures.
32. To Correct Input – Adjust Gas Pressure Regulator
a) Turn boiler off and remove cap from regulator. (Figure 17) Turn adjusting screw
clockwise to increase gas flow. Turn adjusting screw counter-clockwise to decrease gas
flow. Always replace cap before turning on boiler. Vent must terminate outdoors. A flow
restricting bleed valve shall not be used.
33. Rating the Boiler
a) After the boiler has been operating for about 15 minutes check gas input rate to be sure
boiler is operating at design capacity.
34. To Check for High Gas Pressure
a) The boiler and its individual shut-off valve must be disconnected from the gas supply
piping system during any pressure testing of that system at test pressures in excess of
1/2 psig (3.5 kPa).
b) Turn off boiler and turn off gas supply to manual gas shutoff valve. Remove the pressure
test plug on manual shutoff gas valve. Replace with a 1/4" NPT to 1/4" compression (or
flange) adaptor and a short piece of tubing. Connect a piece of rubber hose from tubing
to a manometer.
Figure 17