Montigo L38DF series Instruction Manual
L38DF Indoor
L-Series
Residential
Fireplace
®
C US
Read and understand this manual. Improper installation, adjustment, alteration,
service or maintenance can cause serious injury, property damage or even death.
For assistance or additional information consult a qualified installer, service
agency or the gas supplier.
DANGER
Glass doors on gas fireplaces are extremely hot while the fireplace is on and
remain hot even after the fireplace has been turned off. Safety screens are
available and can reduce the risks of severe burns. Please keep children away
from the fireplace at all times.
CAUTION
Installation & Maintenance Manual
Do not store or use gasoline or any other flammable vapors and liquids in the vicinity of
this or any other gas burning appliance. A fire or explosion my occur causing serious
injury, property damage or even death.
WARNING
Installer: Leave this manual with the appliance. Do not remove.
Consumer: Retain this manual for maintenance and future reference. Do not Discard.
NOTICE
IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from a neighbor's phone. Follow the gas
supplier's instructions.
If you cannot reach your gas supplier, call the fire department.
DANGER
Irritant
Cutting
Watch your step
Slippery floor
High temperatures
Glass hazard
Danger of suffocation
High voltage
Toxic
Flammable materials
Corrosive
Fork lift trucks
Danger overhead crane
Explosion risk
Oxidising
Danger of death
Biohazard
Laser Radiation
Danger of entrapment
Hot surface
General Warning
Blank
Gas bottles
Watch for
falling objects
Electricity
Danger for cutter
Entrapment hazard
Battery hazard
Rotating parts
Low temperature
Strong magnetic field
Optical radiation
Non ionizing
radiation
Radiation
Hazardous to the
Environment
Danger of harming
your hands
Irritant
Cutting
Watch your step
Slippery floor
High temperatures
Glass hazard
Danger of suffocation
High voltage
Toxic
Flammable materials
Corrosive
Fork lift trucks
Danger overhead crane
Explosion risk
Oxidising
Danger of death
Biohazard
Laser Radiation
Danger of entrapment
Hot surface
General Warning
Blank
Gas bottles
Watch for
falling objects
Electricity
Danger for cutter
Entrapment hazard
Battery hazard
Rotating parts
Low temperature
Strong magnetic field
Optical radiation
Non ionizing
radiation
Radiation
Hazardous to the
Environment
Danger of harming
your hands
Irritant
Cutting
Watch your step
Slippery floor
High temperatures
Glass hazard
Danger of suffocation
High voltage
Toxic
Flammable materials
Corrosive
Fork lift trucks
Danger overhead crane
Explosion risk
Oxidising
Danger of death
Biohazard
Laser Radiation
Danger of entrapment
Hot surface
General Warning
Blank
Gas bottles
Watch for
falling objects
Electricity
Danger for cutter
Entrapment hazard
Battery hazard
Rotating parts
Low temperature
Strong magnetic field
Optical radiation
Non ionizing
radiation
Radiation
Hazardous to the
Environment
Danger of harming
your hands
Irritant
Cutting
Watch your step
Slippery floor
High temperatures
Glass hazard
Danger of suffocation
High voltage
Toxic
Flammable materials
Corrosive
Fork lift trucks
Danger overhead crane
Explosion risk
Oxidising
Danger of death
Biohazard
Laser Radiation
Danger of entrapment
Hot surface
General Warning
Blank
Gas bottles
Watch for
falling objects
Electricity
Danger for cutter
Entrapment hazard
Battery hazard
Rotating parts
XG0180 053111.1
Langley, BC V4W 4A1 | Ferndale, WA 98248
You must read and understand this manual prior to installation, operation or
troubleshooting this appliance. Please retain this owner’s manual for future reference
and maintenance.
NOTICE
Table of Contents
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Introduction .................................................................................3
Before you Start .................................................................................4
Installation Checklist ...............................................................................4
Installation Overview and Product Dimensions .........................5
Framing the Fireplace ..........................................................6 - 7
Clearances .................................................................................7
Installing Standoffs .................................................................................7
Installing Nailing Flange Extension .........................................................7
The Direct Vent System ......................................................8 - 17
Converting from Top Vent to Rear Vent
...................................................8
Installing a Roof mounted Termination .............................................9 - 10
Venting Layout ..........................................................................9 - 10
Roof mounted Terminations
Standard Top Vent (no elbows or offsets) ..................................9
Top Vent (two elbows one offset) ...............................................9
Top Vent (multi-elbows and offsets) ...........................................9
Standard Roof Vent (one elbows no offsets) ...........................10
Installing a Wall mounted Termination ................................................... 11
Standard PTO Installation ........................................................11
Pre-installed MSR Frame ......................................................... 11
Pre-installed BSR Frame .........................................................11
Installing MOSR Frame ............................................................ 11
Installing VSS Termination Shield ............................................ 11
Installing PTKOG Heat Guard .................................................. 11
Venting Layout ........................................................................12 - 15
Top Vent, Wall mounted Graph ................................................12
Top Vent, Wall mounted termination (one elbow) .....................12
Top Vent, Wall mounted termination (multi elbow) ...................12
Top Vent, Wall mounted termination (retracted) ......................13
Top Vent, Wall mounted termination (45° corner) ....................14
Top Vent, Wall mounted termination (-45° corner) ...................14
Rear Vent, Wall mounted Termination Graph ...........................15
Standard Rear Vent, (no elbows or offsets) .............................15
Rear Vent, Wall mounted termination (multi elbow) .................15
Venting Components ........................................................................16
Heat Shields ...............................................................................17
Installing a RHS8 Wall Mounted Heat Shield ...........................17
Installing a RHS101 Wall Mounted Heat Shield .......................17
Wiring ........................................................................18 - 19
SIT - Nova 820 gas control and pilot ........................................18
SIT - Proame gas control and pilot .........................................18
Installing Fan Kit ......................................................................19
Installing the Gas Line .............................................................20
Fuel Conversion ...............................................................................20
Gas Pressure ...............................................................................20
Gas Connection ...............................................................................20
Finishing ...............................................................................21
Installing and Removing the Door ...........................................22
Installing the Accessories ........................................................23
Installing the Firestones ...........................................................23
Installing the Optional Burner Cover Kit ...................................23
Operation ........................................................................24 - 25
Start-up Sequence with SIT Nova 820 .....................................24
Start-up Sequence SIT Proame Electronic Ignition ................25
........................................................................26 - 28
General ...............................................................................26
Cleaning ...............................................................................26
SIT Hi-Lo Burner Adjustment ...................................................26
SIT Pilot Burner Adjustment .....................................................26
Troubleshooting .......................................................................27
SIT- Nova 820 Gas Control Valve .......................................27
SIT- IPI Electronic Gas Control Valve .................................27
Parts LisT ...............................................................................28
A. Termination Locations ..........................................................29
B. Warranty ..............................................................................30
C. State of Massachusetts. ......................................................31
Indicates a hazardous situation which, if not
avoided, WILL result in death or serious
injury or property damage.
Indicates a hazardous situation which, if not
avoided, COULD result in death or serious
injury or property damage.
Indicates a hazardous situation which, if not
avoided, WILL result in minor or moderate
injury.
Addresses practices that are important, but
not related to personal injury
DANGER WARNING
CAUTION NOTICE
L38DF* Indoor Gas Fireplace
Safety Alert Key
Introduction
XG0180 - 053111.1
INTRODUCTION
Congratulations on your purchase of a .
With over 30 years of experience, Montigo is committed to providing you
with a gas replace that is not only a beautiful addition to your space, but
that is also designed and manufactured to the highest safety, reliability
and engineering standards.
We strongly encourage you to read and carefully follow the instructions
laid out in this Installation, Operation and Maintenance Manual and retain
it for your future reference. Pay special attention to all cautions, warnings,
and notices throughout this manual intended to ensure your safety.
This manual covers installation, operation and maintenance. Lighting,
operation and care of this replace can be easily performed by the
homeowner. All installation and service work should be performed by
a qualied or licensed installer, plumber or gas tter as certied by the
state, province, region or governing body where the replace is being
installed.
This installation, operation and maintenance manual is applicable to
the models described in the table. Refer to your rating plate to verify
included options. Throughout this instruction guide, instructions are
applicable to all models designated as unless otherwise noted.
The Montigo warranty will be voided by, and Montigo disclaims any
responsibility for, the following actions:
► Modication of the replace and/or components including
Direct-Vent assembly or glass doors.
► Use of any component part not manufactured or approved
by Montigo in combination with this Montigo replace system.
► Installation other than as instructed in this manual.
Consult your local Gas Inspection Branch on installation requirements
for factory-built gas replaces. Installation & repairs should be done by
a qualied contractor.
Hot glass will cause
burns. Do not touch
glass until unit is cooled.
Never allow children to
touch glass.
Irritant
Cutting
Watch your step
Slippery floor
High temperatures
Glass hazard
Danger of suffocation
High voltage
Toxic
Flammable materials
Corrosive
Fork lift trucks
Danger overhead crane
Explosion risk
Oxidising
Danger of death
Biohazard
Laser Radiation
Danger of entrapment
Hot surface
General Warning
Blank
Gas bottles
Watch for
falling objects
Electricity
Danger for cutter
Entrapment hazard
Battery hazard
Rotating parts
Low temperature
Strong magnetic field
Optical radiation
Non ionizing
radiation
Radiation
Hazardous to the
Environment
Danger of harming
your hands
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
The Direct Vent replace must be installed in accordance with
these Instructions. Carefully read all the Instructions in this manual
rst. Consult the Local Gas Branch to determine the need for a permit
prior to starting the installation. It is the responsibility of the installer to
ensure this replace is installed in compliance with the manufacturers
instructions and all applicable codes.
Determine the desired install location of your replace.
See , Dimensions on and refer to the Framing
for details.
Select the location of your termination and resulting vent run.
.
Should it be impossible to meet the venting requirements laid
out in : Venting, please contact Montigo regarding the
use of a Montigo Power Vent.
Lay out the Vent run; calculating the required elbows and straight
runs of 5"/8" flex or rigid pipe.
Layout Electrical Requirements Refer to Wiring, for
Details.
Refer to Installing the Gas Line, for details on the
gas connection and access.
Refer to local codes and guidelines for installation requirements.
:
• must conform to the local codes or in the
absence of local codes to the current version of Natural Gas and Propane
Installation Code, CSA B149. Electrical Installations must conform to
the local codes or, in the absence of local codes, to the current version
of Canadian Electrical Code, CSA C22.1.1
• must conform to the local codes or in the
absence of local codes to the current version of National Fuel Gas
Code, ANSI Z223.1/NFPA 54. Electrical Installations must conform to
the local codes or, in the absence of local codes, to the current version
of the National Electrical Code, ANSI/NFPA 70. See for
installation within the State of Massachusetts..
Installation and repairs should be done by an authorized gas fireplace service technician.
The appliance should be inspected before use and at least annually by a professional. More
frequesnt cleaning may be required due to exessive lint from carpeting, bedding material,
etc. It is imperative that control compartments, burners and circulating air passageways of
the fireplace are kept clean.
NOTICE
Due to high operating temperatures, this appliance should be located out of traffic &
away from furniture and draperies.
Children and adults should be alerted to the hazards of the high surface temperature,
which could cause burns or clothing ignition.
Young children should be carefully supervised when they are in the same room as the
appliance.
Clothing or other flammable materials should not be placed on or near the appliance.
CAUTION
When this appliance is installed directly on 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 or a fire will occur causing serious injury, property damage or
even death.
DANGER
Young children should be carefully supervised when they are
in the same room as the applicance. Toddlers, young children
and others may be susceptible to accidental contact burns. A
physical barrier is recommended if there are at risk individuals
in the house. To restrict access to a fireplace or stove, install
an adjustable safety gate to keep toddles, young children and
other at risk individuals out of the room and away from hot
surfaces.
CAUTION
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Section 1: Installation Overview and Product Dimensions
Fireplace dimensions. (Tolerance ± ⅛").
Please review the Installation Checklist on for general information
on preparing for a successful installation of your replace.
The replace may be installed in any location that maintains
proper clearances to air conditioning ducts, electrical wiring and plumbing.
Safety, as well as efciency of operation, should be considered when
selecting the replace location. Select a location that does not interfere
with room trafc, has adequate ventilation and offers an accessible path
for Direct Vent installation.
37¾"
11½"
35¾"
5" 8"
29"
5"
8"
21¾"
18¼"
6¼"
5¼"
18"
(Opening)
2
9½"
1¼"
1"
35¼"
(Opening)
1¼"1¼"
37¾"
Front View Side View
Models Included: L38DFN L38DFL
L38DFNI L38DFLI
Top View
35 3/4"
11 1/2"
37 3/4"
5"
8"
1 1/4"
35 1/4"
OPENING
18"
OPENING
6 1/4"
5 1/4"
29 1/2"
5"
8"
29"
18 1/4"
21 3/4"
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Section 2: Framing
Frame in the enclosure for the unit with framing materials. The framed
opening for the assembled replace is 37 3/4" wide, x 35 1/4" high x 20
1/8" deep, see Figure 2
.
When constructing the framed opening, please ensure there is
access to install the gas line when the unit is installed, seeFigure 21
Framing dimensions, Straight wall.
* When sheetrock is not used
behind the replace, framing depth
20 1/8" may be reduced by 5/8".
Non Combustible Framing for Top Vent or Rear Vent, with
alcove.
75
0" clearance
to corners only
37 3/4
54 1/4”
Combustible Framing for shelves over the replace, Top vent.
Combustible Framing for shelves over the replace, Rear
vent.
35 1/4”
9”
29”
Combustible Header
Combustible Shelf
21 3/4”
12”
max.
REAR VENT
N.G ONLY
1” min.
35”
MEL Short
90° elbow
35 1/4”
17 1/2”
Combustible Header
Combustible Shelf
1” min.
Non-Combustible
materials. Alcove
over fireplace.
M
in.
12”
door
opening
3”
Rear
Vent
Ceiling
Floor
Top Vent
N.
G
.
&
L.P.
12”
max.
1” min.
header
REAR VENT
N.G ONLY
Non-combustible
Min 1”
84”
2
01/8”
37 3/4”
35 1/4”
*
Minimum Corner framing dimensions
Combustible Framing for Rear Vent, with shelf above replace.
L.P. & N.G
1” Min
35 1/4”
Combustible Header,
with Supplied shield.
Combustible
Shelf
9”
1” Min
L.P. & N.G
29”
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Clearances
1” clearance is maintained on sides and bottom of vent runs and 2”
above horizontal vent runs to any combustible material.
†
†
† Clearance from top of replace to a combustible ceiling within
the replace enclosure.
6”
The replace is supplied with two standoffs. Bend and install these
standoffs on top of the replace ensuring that the height of the standoff
maintains a 6" clearance.
Installing the standoff's.
Installing the Nailing Flange Extension.
Once the replace is placed into the rough framed opening, the supplied
Nailing Flange Extension (Part No. ) must be fasten securely
into place, with nails or wood screws. as shown in Figure 8.
The nailing ange extension can be substituted with a piece of
material of the same size and thermal characteristics,
ie: cement board or equivalent. This is recommended in applications
where the facing materials will not adhere to the metal nailing ange.
6"
When installing a shelf over the top of the replaces, the following
guidelines must be adhered to:
For , the minimum clearance is 1" from the rear
of the replace to a wall, or any combustible materials, and 9" clearance
from the top of the replace to the underside of any combustible shelf
materials.
For , the minimum clearance is 1" from the rear
of the replace to a wall, or any combustible materials, and 17 1/2" to
the underside of any combustible shelf materials.
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Section 3: Venting
Montigo supplies a variety of direct venting and termination options.
It should also be
selected such that it provides the shortest vent run possible. Should
it be impossible to ensure that the termination is the highest point or
should it be impossible to meet the venting guidelines laid out below
please contact your Montigo dealer to discuss power venting options.
.
.
Top vent.
Flue cover and collar removal, Top Vented replace.
Flue cover and collar installation, Rear Vented replace.
Section 3-1: CONVERTING TO REAR VENT
Use the following instructions to convert an for Rear Vent use:
1. Remove the Rear ue cover and gasket (5" and 8") on the ue
outlet, as shown in Figure 9.
2. Next, Remove the Top ue collar's (5" and 8") on the ue outlet,
as shown in Figure 9.
3. Install the (removed) Rear ue cover and gasket material, to the
Top vent outlet. Fasten the cover with included hardware, as
illustrated Figure 9a.
4. Install the (5" and 8") collars to the rear vent outlet using the
included hardware, as illustrated Figure 9a.
5” Inner Flue Collar
8” Outer Flue Collar
Flue Gasket
Flue Cover Plate
Flue Gasket
Flue Cover Plate
8” Outer Flue Collar
5” Inner Flue Collar
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
. Top vent, Roof mounted termination with no offset in vent run.
Top vent, Roof mounted with 1 offset (1 offset= two 90°
bends).
Top vent, Roof mounted with 2 offsets (1 offset= two 90°
bends).
The following details are some possible congurations for Roof mounted
terminations. See below.
Support ring
Support plate
Firestop
32’ max.
2’ min.
PVTK1
Termination
Support ring
Support plate
Firestop
32’ max.
2’ min.
Obstacle
PVTK1
Termination
The maximum termination point is 32’ above the replace.
(: if the maximum termination height is used, the ame
pattern may be affected).
This distance should be measured
from the high side of the roof slope where the ue ashing
intersects the roong materials. (see Figures 10 - 10c).
For a detailed diagram of allowed termination locations, see
Termination location must be a minimum 6’ from a mechanical
air inlet.
Termination location must be a minimum 18” from a parapet wall.
A maximum of two offsets (each offset is made up of 2-90°
bends) may be made.
Firestops must be installed as required by National & local codes.
Ensure all runs are supported with a minimum of 3 supports
per 10’ of venting.
Install all roof ashing and storm collars as shown.
PEXT
PEXT-10
Adaptor
Flue
Collar
Support straps or
support plate & ring
2’ min.
Firestop
Firestop
Firestop
32’ max Support plate
& ring
Obstacle
PVTK1
Termination
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Rear vent, Roof mounted venting (1 = 90° bend).
Support ring
Support plate 32’ max
Termination
12”
Max.
PVTK1
PEXT Sections
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
1
12”
2”
12”
12”
A Termination with a Built-In Frame is installed during framing of a structure.
1. Frame the termination opening to 11" x 11".
2. Install exterior sheathing to the structure framing.
3. Fasten the termination to the sheathing using a minimum of 4 screws.
MSR Frame
PTO-4 (5"/8")
Termination
PTO-4F (5"/8")
Termination
Installing a PTO-F termination.
Installing a PTO termination with the MSR frame.
Installing the VSS Vinyl Shield.
The VSS Termination shield is installed when the exterior of a structure
is clad with Vinyl siding. It is placed directly above, and on-centre with
the termination.
Terminations with a MSR frame allow the installation of the frame prior
to installation of the termination.
1. Frame the termination opening to 12" x 12".
2. Secure the MSR Frame to the exterior sheathing of the structure.
3. Fasten the termination to the MSR Frame using a minimum of 4 screws.
Installing a PTO termination with the BSR frame.
Terminations with a BSR frame allow the installation of the frame in
masonry prior to the installation of the termination
1. Frame the BSR opening to 12" x 12".
2. Secure the BSR Frame to the exterior sheathing of the structure.
3. Fasten the termination to the BSR Frame using a minimum of 4 screws.
1. Frame the MOSR opening to 12" x 12".
2. Fasten the MOSR frame to the interior side of the studs, concrete,
or nished wall construction using a minimum of 4 screws.
3. Insert the termination into the MOSR frame as shown here, (from
the inside) and attach to the MOSR by installing a min. quantity of
4 bolts into the threaded nuts on the MOSR Frame.
A Termination with a MOSR Frame is installed from the inside of the
structure. These are commonly used in high-rise construction.
MOSR Frame
PTO-4 (5"/8")
Termination
Installing a PTO termination with MOSR frame.
BSR Frame PTKOG (5"/8")
is recommended in
installations where the termination is located within 7' feet above
grade, or above a pedestrian walkway, and may be Required by code
in Public areas.
1. Ensure that the two longmounting brackets are facing the bottom
of the termination. (See inset). This will provide more heat protection
at the top of the termination, where temperatures are highest.
2. Attach to the faceplate of the termination using four sheet metal
screws.
Installing a PTO termination heat guard.
1
1”
11”
Framing
Exterior
Sheathing
Fastening Hardware,
minimum 4-screws
Framing
Exterior
Sheathing
Fastening Hardware,
minimum 4-screws
PTO-4 (5"/8")
Termination
Framing
Exterior
Sheathing
Fastening Hardware,
minimum 4-screws
12”
12”
Fastening Hardware,
minimum 4-screws
Framing,
concrete or
other
materials
Exterior
Sheathing,
concrete or
other materials
Exterior Vinyl
siding
PTO-4 (5"/8")
Termination
VSS Vinyl shield
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Measure the vertical height from the replace hearth to the centre of the
termination and the horizontal run from the replace ue collar to the wall
ange of the termination. Plot on the Venting Graph Figure 13 with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
If the vertical dimension from the hearth is 108" and the horizontal
run to the wall ange of the vent termination is 180", this would be
an acceptable installation.
If the vertical dimension from the hearth is 60" and the horizontal
run to the wall ange of the vent termination is 72", this would be
an acceptable installation.
If the vertical dimension from the oor of the replace is 60" and
the horizontal run to the wall ange of the vent termination is 144",
L38DF* Top Vent Venting Graph for wall mounted
terminations.
Top Vented, wall mounted installation with one 90° bend.
The vent run must comply with Venting Graph for Top vent, wall mounted
terminations, Figure 13.
Top Vented, wall mounted Multi-elbow installation. See
Venting Graph for Top vent, wall mounted terminations, Figure 13.
Vent terminations must not be recessed in walls or siding.
For Heat Shield requirements see .
Once the proposed venting layout has been determined refer to
Figure 13 or 15 to ensure the layout is acceptable.
All measurements for vertical or horizontal runs are measured
from center of the vent pipe.
Venting runs must fall within the limits set by the venting graph,
see Figure 13
The following details are some possible congurations for Wall mounted
terminations.
Solid Section
Flex Section
Hearth
15’foot Max.
Heat
Shield
Termination
Exterior
Wall
Heat
Shield
Termination
Hearth Exterior
Wall
35"Min.
36" Max.
Flex or Rigid
section
A
C
B
36”
36 35” If your installation does not fall
within the venting graph parameters
contact a local Montigo Dealer for
Power Venting options.
Unacceptable vent run
within shaded area.
Acceptable vent run
within non-shaded area.
An inspection of the explosion relief flappers and door 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.
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
. Top Vented, wall mounted Retracted Multi-elbow installation.
See Venting Graph for Top vent, wall mounted terminations, Figure 13.
Heat Shield
96”Min.
120” Max
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Corner Rigid installation. Corner Flex installation. (NG Models Only)
Attach an PEL-45 (45° elbow) directly onto the ue collar. Cut the PXT-
20 to suit, and attach it to the PEL-45. Slide the replace into position
and attach to the termination.
Use an PTO-3 termination and an PFL-1 or PFL-2/PFL-2 (12" or 24"
compressed length) and a frame, if appropriate.Flex may be turned to
obtain desired degree of angle required but must not exceed 45°.
The Kit includes a heat shield, a
PFL-12 (f/f) exible pipe, and a termination with or without a mounting
frame.
PEL-45 Elbow
PEL-90 Elbow
PXT-18
Corner installation is available for
Ensure minimum vertical venting height of 36” is maintained in corner installations.
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
21 3/4”
12”
A
B
C
46”
42”
Rear Vent Venting Graph for wall mounted terminations.
Rear Vented, wall mounted Multi-elbow termination
installation. The vent run must comply with the Venting Graph for Rear
vent, wall mounted terminations, Figure 15.
. Straight run, Rear Vented, wall mounted termination for
L38DF*, Note: Straight through the wall rear vent available for
Natural Gas only.
21 3/4”
PXT Extension
RHS101 Heat
Shield
Termination
Hearth Exterior
Wall
If your installation does not fall
within the venting graph para-
meters, please contact Montigo
for Power Venting options.
■ All dimension lengths for vertical or horizontal runs are measured
from center of the vent pipe.
■ Vent runs must fall within the limits set by the venting graphs,
see .
■ Fireplace must be converted to Rear Vent conguration prior to
running vent, see .
Measure the vertical height from the replace hearth to the centre of the
termination and the horizontal run from the replace ue collar to the wall
ange of the termination. Plot on the Venting Graph with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
If the vertical dimension from the hearth is 120" and the horizontal
run to the wall ange of the vent termination is 138", this would be an
acceptable installation.
If the vertical dimension from the hearth is 48" and the horizontal run to
the wall ange of the vent termination is 96",
If the vertical dimension from the oor of the replace is 72" and the
horizontal run to the wall ange of the vent termination is 120",
Unacceptable vent run
within shaded area.
Acceptable vent run
within non-shaded area.
30” Max.
46” Min.
12”
Max.
Flex or Rigid
Section
24 1/4”
Min.
21 3/4”
Natural Gas only
An inspection of the explosion relief flappers and door 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.
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Connection and installation of the vent components should
adhere to the following guidelines:
Montigo recommends the use of a ex section for the nal pipe
connected directly to the replace offering greater exibility of
installation and absorption of movement.
Firestops must be installed as required by National & local codes.
Montigo recommends that all exterior corners and joints be sealed
with exterior caulking. However, we encourage you to consult
your Building Envelope Engineer or Waterproong Consultant
for further recommendations.
The following components and associated Montigo part numbers for
installation of a roof or wall mounted termination.
Use of non-Montigo parts will the warranty
and may impede operation of the replace.
Use any combination of rigid and ex pipe as required and in
any orientation (Male connectors can face in any direction).
Flex sections may be stretched up to 50% of their total length
(e.g. a 24” section maybe stretched to 36”).
Connect all vent sections using a minimum of three sheet metal
screws on the outer pipe ue.
Ensure the pipe ends male to female slide in a minimum of 1
1/2” of overlap.
Ensure all runs are supported with a minimum of 3 supports
per 10’ of venting.
When hanging/ supporting venting, ensure that 1” clearance
is maintained on sides and bottom of vent runs and 2” above
horizontal vent runs to any combustible material.
Rigid pipe may be cut less than half way from the
Ensure when cutting sections of rigid pipe to maintain integrity
of internal supports.
Place the springs, supplied with the pipe kit, between the outer
and inner pipes to keep the pipes separate and avoid any
possible hot spots.
º
º
º
º
Please refer to your building evelope engineer or waterproofing consultant for
a review of penetrations through exterior walls or the roof.
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
The RHS8 Heat shield be used
of the replace, (see gure 16a). For applications within
these dimensions the RHS101 Heat Shield be used.
To install the RHS8, frame an opening in combustible construction,
Figure 16 below. Slide the Heat shield in place over the vent pipe
which attaches to the replace. After the replace and vent pipe has
been installed, clearances should match the dimensions in Figure 16.
RHS8 Installation. (Install by sliding over vent pipe where it
passes through the combustible construction).
RHS8 Installation. (Minimum requirements).
. RHS101 Installation. (Install by sliding Outer Section over
vent pipe where it passes through the combustible construction.
. Heat Shield. After sliding the outer section in place.
. RHS101 Installation.
The RHS101 Heat shield be used where the RHS8 Termination
() be used. Use the RHS101 where any
of the dimensions are within the parameters shown,.
To install the RHS101, Slide the Inner Section over the vent pipe that
will connect to the replace. Then fasten the vent pipe to the back of the
replace with a minimum of three sheet metal screws. From the outside
slide the RHS101 outer section on see . To complete the
installation fasten the Heat Shield Outer Section & Termination frame
to the structure .
RHS8 Heat Shield
1” Min. Both sides Typical
1” Min.
1” Min.
Combustible Framing
RHS8 Heat
Shield
36” Min
60” Min.
Termination
Termination
Drywall / sheetrock
RHS101 Heat Shield, inner Section
RHS101 Heat Shield
O
uter Section
Combustible
framing
Termination
Drywall / sheetrock
RHS101 Heat Shield, inner Section
RHS101 Heat Shield
Outer Section
Vent pipe, from fireplace
Outer Shield 10 1/4”
3/8” Min. Both sides Typical
3/8” Min.
3/8” Min .
Combustible Framing
Inner Shield 9 3/8”
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Wiring Diagram for the SIT Proame Electronic Ignition
Manifold Pressure
Test Connection
Wall Switch
Power
Generator
Pilot Adjustment Screw
Inl
e
t Pr
essu
r
e
'Hi-Lo' Adjustment Knob
Gas Control Knob (Shown in “Pilot” position)
Wiring Diagram for SIT Nova 820 gas and pilot.
Orange Green
Red
Black
880 Valve
Battery
Holder
4 x 1.5V
AA Type
Chassis
connection
120 Vac INPUT
7 Vdc STABILIZED
SUPPLY OUTPUT
ON / OFF
ON/OFF IPI/CPI
BATTERY
DC SUPPLY
VALVE
GROUND
DFC
(CPI / IPI MODE
Not Used)
Section 4: Wiring
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
The * gas valve may be connected to a wall switch. Do
connect any external power to the remote switch. The valve will
generate its own power on a millivolt circuit or will draw its power from
an AC Connection inside the replace, depending on the model of the
unit. Use only low voltage wire, and connect any external
power to the remote switch.
Refer to for wiring requirements.
The switch location must not exceed 30' from the replace.
Wiring for the optional Fan Kit
All replaces may be equipped with optional fan kits for
circulating heat into the living space.
Installations in Canada which employ the fans must be electrically
grounded in accordance with CSA C22.1 Canadian Electrical Code Part
1 and/or Local Codes.
Installations in the USA which employ the fans must be grounded in
accordance with local codes or, in the absence of local codes, with the
National Electrical Code, ANSI/NFPA 70-1987.
For more information see the Fan Kit Installation Guide included with
the fan kit.
If any of the original wire supplied with the appliance is replaced,
it must be replaced with the same type, or its equivalent.
Wiring schematic for optional fans.
G
L2-WH
L1-BLK
p g
Quick Connect
lu to motor
5/1/60 Supply
G L1 L2
L38DF* Indoor Gas Fireplace
XG0180 - 053111.1
Installation
Section 5: Installing the Gas Line
Gas line access.
Section 5-1: FUEL CONVERSION
nVerify that your replace is compatible with your available
gas type. (Natural Gas or Propane shown by "N" or "L"
in your model number
n If gas type is not compatible, contact your local Montigo
representative to purchase a conversion kit.
n Conversion kits must be installed by a qualied service
technician.
Section 5-2: GAS PRESSURE
n Optimum appliance performance requires proper input
pressures.
n 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 are:
nThe manifold outlet pressure is set from the factory to
the appropriate pressure but should be veried.
n To check pressures, control valves have a provision to
remove a 1/8” N.PT. plug to be tted with a hose barb.
n Montigo requires a service shut off valve be located in
an accessible location to isolate the gas supply.
QnQOnly install gas shut-off valves approved for use by the
state, province, or other governing body in which the
replace is being installed.
Section 5-3: GAS CONNECTION
n See Figure 21 for location of gas line access.
n Flexible gas connectors must not exceed 3 feet in length,
unless allowable within local regulations.
n Connect incoming gas line to the 1/2"or 3/8" gas inlet port.
n Purge all air out of gas line.
n Check appliance connection, valve and valve train under
normal operating pressure with a commercially available
leak check solution.
0.875 dia.
10
3 1/2
7
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
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3
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5
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