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Section 5: Installing the gas line
Fuel Type
• 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 dealer.
Gas Pressure
• Optimum appliance performance requires proper input pressures.
• Gas line sizing requirements will be determined in ANSI Z223.1/ NFPA
54 National Fuel Gas Code in the USA and CAN/CGA B149.1 in Canada.
Pressure requirements (during operation):
PRESSURE REQUIREMENTS
Gas Pressure
Minimum inlet pressure
Manifold pressure
Figure 17. Pressure Requirements
• The manifold outlet pressure is set from the factory to the appropriate
pressure but should be verified.
• 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.
Section 5-3: GAS CONNECTION
• See dimensional drawing for location of gas line access.
• Flexible gas connectors must not exceed 2 feet in length, unless
allowable within local regulations.
• Connect incoming gas line to the ½"or ⅜" gas inlet port.
• 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.
NOTICE
When pressure testing the fireplace, gas line, and input system
follow the appropriate local codes for your area. DO NOT connect
the fireplace to pressures in excess of 0.5 psig. (14" w.c.) This will
damage the gas control valve.
30
Natural Gas
Propane
5.5in. w.c.
11in. w.c.
3.5in. w.c.
10in. w.c.
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 injury, property damage or death.
WARNING
An inspection of the door MUST be made prior to lighting the
fireplace. A faulty seal on the door gasket will result in products of
combustion leaking into the living space and may result in carbon
monoxide poisoning.
Primary air adjustment
During initial installation, check primary air opening
(below are factory settings):
DRSQ34*I
Closed for NG and ½" for Propane;
DRSQ34*I-2 1/16" for NG and full open for Propane.
DRSQ38*I
3/16" for NG and ½" for Propane;
DRSQ38*I-2 ¼" for NG and full open for Propane.
The primary air might need adjusting from the factory setting for vertical
runs. If flame is sooting, primary air may need to be opened slightly
Smaller primary air opening means yellower flame.
Note: all adjustments to primary air must be made by qualified
installers. Very small changes in opening size make major changes in
flame appearance
Depending on desired flame appearance recommended primary air
adjustment limits: NG ⅛" – ¼" and propane ⅜" – Full open.
Installation
XG0230 - 052020
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