RP424PFC Indoor Gas Fireplace
Page 35
XG0781 - 151104
Installation
MANIFOLD PRESSURE
MANIFOLD
Figure 52. HSI Valve
Figure 51a.
Pressure Testing (viewed from rear of
appliance)
Pressure Requirements
Gas Pressure
Natural Gas
Propane
Maximum Inlet Pressure
14" WC (1/2 psi) 14" WC (1/2 psi)
Minimum Inlet Pressure
(with fireplace on)
5.5" W.C.
11" W.C.
Manifold Pressure
3.5" W.C.
+/- 0.2
10" W.C.
+/- 0.3
Testing the Gas Pressure
The manifold outlet pressure is set from the factory to the
appropriate pressure but should be verified.To check pressures,
gas valves have a provision to remove a 1/8” MPT plug and to
be fitted with a hose barb.
See
Section 10
for instructions on installation and removal of glass.
It is possible to remove only one side to set up for this test. The test
must be performed with all glass and access panels in place.
Follow the instructions in
Accessing the Valve
for information on
how to access the valve.
Figure 51b.
Pressure Testing (viewed from inside
appliance)
Pressure Test Setup
Note:
The following steps show pressure testing from within the
fireplace. If you have access to the rear of the appliance this
test may be done by removing the valve cover on the rear of
the appliance.
Step 1:
Remove the testing pass-through covers located inside
the fireplace to the left side of the inner valve cover and behind
the middle glass retainer on the left or right side of the fireplace.
Figure 53.