Page 19
Installation
Gas Inlet
Lights
Control Cable
Gas Pressure
Optimum appliance performance requires proper inlet pressures.
Gas line sizing requirements will be determined in ANSI Z221.3
National Fuel Gas Code in the USA and CAN/CGA B149 in Canada.
Pressure requirements:
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.
+/- 2
10" W.C.
+/- 0.3
Section 5: Installing the gas line
Figure 15.
Identifying.the.Gas.Inlet
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”
M
PT plug and to be fitted with a hose barb.
A
service shut off valve
is required
in an accessible
location to isolate the appliance.
Only install gas shut-off valves approved for use by the state,
province, or other governing body in which the fireplace is
being installed.
GAS CONNECTION
See
Figure 15
below for location of gas line access.
Flexible gas connectors must not exceed 3 feet in length, unless
allowable within local regulations.
Connect incoming gas line to the 1/2" MPT gas inlet.
Purge all air out of gas line before connecting.
Check appliance connection, valve and valve train under
normal operating pressure with a commercially available leak
check solution.
DO NOT USE A FLAME OF ANY KIND TO TEST FOR LEAKS.
psi. This will damage the gas control valve.
MANIFOLD PRESSURE
MANIFOLD
Figure 14.
..Pressure.Testing
Figure 14a.
..HSI.Valve
Summary of Contents for MILAN II
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