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L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Installation
Installing The Gas Line
The gas line must be installed before completing the installation of the
L38DF-ST Fireplace.
Natural Gas
requires a minimum inlet gas supply
pressure of 5.5" W.C. & a manifold pressure of 3.5" W.C.
Propane
Gas
requires a minimum inlet gas supply pressure of 11" W.C. & a
manifold pressure of 10" W.C. Provision must also be made for a 1/8"
N.P.T. plugged tapping and be accessible for test gauge connection
immediately upstream of the gas supply controls to the appliance. The
fireplace gas connection and the main operating gas valve is located
behind the removable trim at the bottom of the unit and need only be
attached to the gas line with an approved fitting, as required by the
applicable installation codes
.
To access the fireplace gas connection the main burner must be
removed as shown below in figure 5a.
• Only use gas shut-off valves approved for use by the state, province,
region, or governing body, in which the appliance is being installed, or
as required by the applicable installation codes.
• Flexible gas connectors must not exceed 3 feet in length, unless it is
allowable within applicable installation codes.
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.
Figure 5a.
Gas line access.
The appliance and its individual shut-off valve must be disconnected
from the gas supply piping system during any pressure testing of that
system at test pressures in excess of 1/2 psig (3.5 kPa).
The appliance must be isolated from the gas supply piping system by
closing its individual manual shut-off valve during any pressure testing
of the gas supply piping system at test pressures equal to or less than
1/2 psig (3.5 kPa).
Vent Installation
This section covers the installation of direct venting and terminations.
Installation Requirements
L38DF-ST
model fireplaces are certified for use with Montigo Standard
Series
(5" / 8")
venting components.
Minimum
clearance to combustible construction around the vent pipe
is 1"
on all sides, except on horizontal venting where the
top
of the pipe
must have a clearance of at least 2".
Use only
certified Montigo vent components.
(Use of other parts will void the
Montigo warranty, and may impede the operation of the fireplace.)
All joints must be secured with a minimum of two screws per joint
Vent terminations must not be recessed in walls or siding
Horizontal runs must be supported by a minimum of two supports per horizontal
run. A minimum of one screw on each side of support is also required
Flex vent sections may be stretched up to 50% of their total length (eg. a
24" section may be stretched to 36")
Maximum horizontal run with no vertical rise is 6 feet.
Flex vent sections over 6 feet must fall within the limits set by the venting
graph and must have a minimum vertical rise of 3 inches per foot of flex.
Solid vent sections may be cut less than half way from the female end
Venting components can be used in any combination of solid/rigid pipe or flex
pipe and in any orientation (Male connectors can face in any direction)
p
p
p
p
p
p
p
p
p
p
p
Installing The Remote Switch
The
L38DF-ST's gas valve is located behind the lower trim, and may
be connected to a wall switch. The valve generates its own power on
a millivolt circuit. Use only low voltage wire, and DO NOT
connect
any external power to it.
Note:
The switch location must not exceed 30' from the fireplace.
7”
1 3/4”
2 3/8”
1 3/4”
WARNING:
When this appliance is installed directly on carpeting, tile or
any combustible material other than wood flooring, it must be
installed on a metal or wood panel extending the full width and
depth of the appliance.
Figure 2.
Back frame dimensions.
Backframe Min. 37 3/4”
