Montigo L38DF-ST - Manual (Page 20)

L38DF-ST* Indoor Gas Fireplace
Page 20 XG0810 - 150204.2
Installation
Section 5: Installing the Gas Line
Section 5-1: 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.
„ Conversion kits must be installed by a qualified service techni-
cian.
Section 5-2: GAS PRESSURE
„ Optimum appliance performance requires proper input pres-
sures.
„ 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:
Gas Pressure Natural Gas Propane
Minimum inlet pressure 5.5in. w.c. 11in. w.c.
Manifold pressure 3.5in. w.c. 10in. w.c.
Note: 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 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.
„ 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 re-
move a 1/8” N.PT. plug to be fitted with a hose barb.
„ Montigo requires a service shut off valve be located in an ac-
cessible 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 Figure 19 for location of gas line access.
„ Flexible gas connectors must not exceed 3 feet in length, un-
less 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.
Figure 19. Gas line access.
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.
NOTICE
7”
1 3/4”
2 3/8”
1 3/4”
An inspection of the explosion relief flappers and door MUST be made prior to
lighting the fireplace. A faulty seal on the door gasket and/or explosion ports will
result in products of combustion leaking into the living space and may result in
carbon monoxide poisoning.
WARNING
WARNING
When installing the fireplace - gas lines, fittings,
accessories or any other objects cannot impede the
proper movement of the door buckles.