Section 5: Installing The Gas Line; Section 5-1: Fuel Conversion; Section 5-2: Gas Pressure; Section 5-3: Gas Connection - Montigo L38DF Installation & Maintenance Manual

Section 5: Installing the Gas Line

Section 5-1: Fuel Conversion

Verify that your fireplace is compatible with your available
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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
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representative.
Conversion kits must be installed by a qualified service
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technician.

Section 5-2: Gas Pressure

Optimum appliance performance requires proper input
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pressures.
Gas line sizing requirements will be determined in ANSI
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Z223.1/ NFPA 54 National Fuel Gas Code in the USA
and CAN/CGA B149.1 in Canada.
Pressure requirements are:
Gas Pressure
Minimum inlet pressure
Manifold pressure
The manifold outlet pressure is set from the factory to
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the appropriate pressure but should be verified.
To check pressures, control valves have a provision to
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remove a 1/8" N.PT. plug to be fitted with a hose barb.
Montigo requires a service shut off valve be located in
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an accessible location to isolate the gas supply.
Q O nly install gas shut-off valves approved for use by the
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Q
state, province, or other governing body in which the
fireplace is being installed.

Section 5-3: Gas Connection

See Figure 21 for location of gas line access.
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Flexible gas connectors must not exceed 3 feet in length,
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unless allowable within local regulations.
Connect incoming gas line to the 1/2"or 3/8" gas inlet port.
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Purge all air out of gas line.
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Check appliance connection, valve and valve train under
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normal operating pressure with a commercially available
leak check solution.
DO NOT USE A FLAME OF ANY KIND TO TEST FOR LEAKS.
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.
XG0180 - 150204.1
Installation
Natural Gas Propane
5.5in. w.c. 11in. w.c.
3.5in. w.c. 10in. w.c.
0.875 dia.
3 1/2
10
Figure 21. Gas line access.
WARNING
An inspection of the explosion relief flappers and door MUST be made prior to
lighting the fireplace. Faulty seal on the door gasket and/or explosion ports will
result in combustion products leaking into the living space and may result in
carbon monoxide poisoning.
WARNING
When installing the replace - gas lines, ttings,
accessories or any other objects cannot impede the
proper movement of the door buckles.
L38DF* Indoor Gas Fireplace
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