Section 5: Installing The Gas Line; Section 5-1: Fuel Conversion; Section 5-2: Gas Pressure; Section 5-3: Gas Connection - Montigo P42DF Prestige Series Installation & Maintenance Manual

P42DF* Indoor Gas Fireplace

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 to purchase a conversion kit.
Conversion kits must be installed by a qualified service technician.
„
Section 5-2:
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:
Gas Pressure
Minimum inlet pressure
Manifold pressure
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.
Section 5-3:
GAS CONNECTION
See Figure 20 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.
Page 18
Installation
Installation
Natural Gas Propane
5.5in. w.c. 11in. w.c.
3.5in. w.c. 10in. w.c.
1
1 4 "
2"
Figure 20. Gas line access.
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.
P42DF* Indoor Gas Fireplace
8 1/2
XG0195 - 030712.1