Fuel Conversion; Gas Pressure; Gas Connection; Section 5: Installing The Gas Line - Montigo H38DF-CLCR Installation & Maintenance Manual

H(L)38DF-CLCR Corner Gas Fireplace
Section 5: Installing the Gas Line

FUEL CONVERSION

Verify that your fireplace is compatible with your available gas type.

(Natural Gas or Propane shown by "N" or "L" in your model number
If gas type is not compatible, contact your local Montigo representative

to purchase a conversion kit.
Conversion kits must be installed by a qualified service technician.


GAS PRESSURE

Optimum appliance performance requires proper input 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 are:

Pressure Requirements
Gas Pressure
Minimum Inlet Pressure
Manifold Presure
The manifold outlet pressure is set from the factory to the appropriate

pressure but should be verified.
To check pressures, control valves have a provision to remove a

1/8" N.PT. plug to be fitted with a hose barb.
Montigo requires a service shut off valve be located in an accessible

location to isolate the gas supply.
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 22 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"or 3/8" gas inlet port.

Purge all air out of gas line.

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.

3 3/8"
3 1/2"
11 3/4"
Figure 22. Gas line access.
Page 16
Installation
Natural Gas Propane
5.5" W.C. 11" W.C.
3.5" W.C. 10" W.C.
Ø 1 1/8"
1 1/2"
Ø 1 1/8"
11 3/4"
XW2030
XW2032
2 3/8"
DANGER
After gas line is connected, each
appliance connection, valve and valve
train MUST be checked while under
normal operating pressure with either a
Liquid Solution, or Leak Detection
Device, to locate any source of leak.
Tighten any areas where bubbling
appears or a leak is detected until
bubbling stops completely or leak is no
longer detected. DO NOT use a flame
of any kind to test for leaks. A fire or
explosion will occur, causing serious
injusy, property damage or death.
NOTICE
When pressure testing the fireplace,
Gas line, and input system follow the
appropriate local codes or your area.
DO NOT connect the fireplace to
pressures in excess of 1/2lb. This will
damage the gas control valve.
XG0213 - 020111