13
Fig. 7: Gas Line Sediment Trap
NOTE: Do not use Teflon tape on gas line pipe
thread. A flexible pipe sealant suitable for LP gases
is recommended.
Gas Pressure Regulator
The gas pressure regulator is preset at 4.0 in W.C.
(1.0kPa) for natural gas and 10.0 in W.C. (2.5kPa) for
propane gas.
If adjustment is needed, remove plug and turn adjust-
ment screw clockwise to increase pressure or
counter-clockwise to decrease pressure.
Gas Pressure* Natural Gas Propane Gas
Max. Inlet
(static)
10.5 in. WC
(2.6 kPa)
13 in. WC
(3.2 kPa)
Min. Inlet
(dynamic)
5 in. WC
(1.2 kPa)
11 in. WC
(2.7 kPa)
Manifold Gas
(dynamic)
4 in. WC
(1.0 kPa)
10 in. WC
(2.5 kPa)
*Static means without heater operating, dynamic refers to heater
operating.
Table F: Gas Pressure
Gas Pressure Adjustment Locations
Fig. 8: Honeywell Gas Valve
Electronic Ignition Gas Valves
Fig. 9: Location of Gas Pressure Adjustment
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