Montigo L42DF series Instruction Manual
L42DF 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
XG0181 112811
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 furure reference
and maintenance.
NOTICE
Table of Contents
L42DF* Indoor Gas Fireplace
XG0181 - 112811
.................................................................................3
Before you Start .................................................................................4
Installation Checklist ...............................................................................4
Installation Overview and Product Dimensions .....................5
Framing the Fireplace ............................................................6
Clearances ............................................................................6
The Direct Vent System ..................................................7 - 11
Converting from Top Vent to Rear Vent .............................7
Installing a Roof mounted Termination .........................8 - 9
▪ Section 3-2-1: Venting Layout ..........................................................8
▪ Roof mounted Terminations
Standard Top Vent (no elbows or offsets)
......................................8
Top Vent (two elbows one offset) ..................................................8
Top Vent (multi-elbows and offsets)
..............................................8
Standard Roof Vent (one elbows no offsets) ................................9
▪ Section 3-2-2: Venting Components .................................................9
Installing a Wall mounted Termination .............................10
▪ Standard PTO Installation ........................................................10
▪ Pre-installed MSR Frame .........................................................10
▪ Pre-installed BSR Frame ..........................................................10
▪ Installing MOSR Frame ............................................................10
▪ Installing VSS Termination Shield .............................................10
▪ Installing PTKOG Heat Guard ..................................................10
▪ Section 3-3-1: Venting Layout ................................................11 - 12
▪ Top Vent, Wall mounted Graph, L42DF .................................... 11
▪ Top Vent, Wall mounted termination (one elbow) ..................... 11
▪ Top Vent, Wall mounted termination (multi elbow) ................... 11
▪ Top Vent, Wall mounted termination (45° corner) ....................12
▪ Top Vent, Wall mounted termination (-45° corner) ..................12
▪ Rear Vent, Wall mounted Termination Graph ...........................13
▪ Standard Rear Vent, (no elbows or offsets) ..............................13
▪ Rear Vent, Wall mounted termination (two elbows) ..................13
▪ Section 3-3-2: Venting Components .................................................14
▪ Section 3-3-3: Heat Shields ..............................................................15
▪ Installing a RHS8 Wall Mounted Heat Shield ...........................15
▪ Installing a RHS101 Wall Mounted Heat Shield .......................15
Wiring ...............................................................................16
▪ gas control and pilot ...................................................16
▪ nstalling HFK Fan Kit ...............................................................16
Installing the Gas Line .........................................................17
Fuel Conversion ...............................................................17
Gas Pressure ...................................................................17
Gas Connection ...............................................................17
Finishing ..............................................................................18
▪ Finishing around the replace ......................................................18
▪ Installing the nailing ange extension ...........................................18
Installing and Removing the Door .......................................19
Installing the Accessories ....................................................20
▪ Installing the L42DF Firestones ....................................................20
▪ Installing the L42DF Articial River Rocks ....................................20
Operation ......................................................................21 - 23
▪ Start-up Sequence with Continuous Pilot .....................................21
▪ Start-up Sequence SIT-IPI Gas valve ...........................................23
........................................................................24 - 25
▪ General ...............................................................................24
▪ Cleaning ...............................................................................24
▪ SIT Hi-Lo Burner Adjustment ........................................................24
▪ SIT Pilot Burner Adjustment .........................................................24
▪ Troubleshooting ....................................................................25
SIT- Nova 820 Gas Control Valve .............................................25
SIT- IPI Electronic Gas Control Valve .......................................25
▪ Parts List ...............................................................................25
A. Termination Locations ...............................................................26
B. Warranty ...............................................................................27
C. State of Massachusetts. ...........................................................28
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.
Address practices that are important, but
not related to personal injury
DANGER WARNING
CAUTION NOTICE
L42DF* Indoor Gas Fireplace
Safety Alert Key
Introduction
XG0181 - 112811
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 below. Refer to your rating plate to verify
included options.
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
L42DF* Indoor Gas Fireplace
XG0181 - 112811
Installation
The L42DF* 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 current CAN/
CGA B-149.1 and .2 Gas Installation Code and local regulations.
• must conform to local codes, or in
the absence of local codes to the National Fuel Gas Code, ANSI Z223.1
.
•
. This replace must comply with NFPA-54 Chapter 10.
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,
ect. 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
L42DF* Indoor Gas Fireplace
XG0181 -112811
Installation
Please review the Installation Checklist on Page 4 for general information
on preparing for a successful installation of your replace.
The L42DF* 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. Try to select a location that does not
interfere with room trafc, has adequate ventilation and offers an
accessible path for Direct Vent installation.
1 1/4"
1 1/4"
15 1/2"
36 1/2"
39 1/2"
OPENING
19"
OPENING
38"
18 1/2"
DOOR
1"
12 1/4"
19 3/4"
39 3/4"
5"
8"
20 1/4"
42"
36 1/2"
5 1/4"
6 1/4"
19 3/4"
5"
8"
33 1/4"
36 1/4"
6"
30 1/2"
31 1/4"
26 1/2"
Figure 1: Unit Dimensions
L42DF* Indoor Gas Fireplace
XG0181 - 112811
Installation
1). Frame in the enclosure for the unit with framing materials. The
framed opening for the assembled replace is 42" wide, x 37" high x
22⅝" deep, see Figure 2.
Figure 2
Framing dimensions, (Straight wall & Corner
Installation).
When installing a shelf over the top of the replaces, the following
guidelines must be adhered to:
For Rear Vent applications, the minimum clearance is 2" from the rear of
the replace to a wall, or any combustible materials, and 10" clearance
from the top of the replace to the underside of any combustible shelf
materials.
For Top Vent applications, the minimum clearance is 2" from the rear
of the replace to a wall, or any combustible materials, and 21" to the
underside of any combustible shelf materials.
(Minimum 2" clearance must still be maintained around the vent
pipes.)
* When sheetrock is not used behind the
replace, framing depth 22⅝" may be
reduced by 5/8".
Combustible Framing for shelf over the replace,
Top vent.
Combustible Framing for Rear Vent with shelf
above the replace.
Combustible Framing for Top Vent, with shelf above
replace.
22 5/8”
42”
37”
84 7/8”
0" clearance
to corners only
42”
60 5/8”
1” Min
37”
Combustible Header,
with Supplied shield.
Combustible
Shelf
10”
1” Min
L.P. & N.G
33”
REAR VENT
N.G. ONLY
2” Min 12” Max.
N.G.
37”
Combustible Header,
with Supplied shield.
Combustible
Shelf
10”
REAR VENT
N.G. ONLY
Combustible Header,
with Supplied shield.
Combustible Shelf
40 1/2”
21”
PEL Short
90 elbow
N.G. & L.P .
2” Min
37”
Non Combustible Framing for Top Vent or Rear
Vent, with alcove. Note: Straight through the wall rear
vent available for Natural Gas only.
MIN
96”
12”
8”
door
opening
3”
Rear
Vent
Cieling
Floor
Alcove over fireplace
Top Vent
N.G. & L.P.
12”
max.
1” min.
Non-combustible
header
Min 1”
REAR VENT
N.G ONLY
(Noncombustible
Material ONLY)
L42DF* Indoor Gas Fireplace
XG0181 -112811
Installation
Combustible Framing Side Heat Shield , (two 2-pcs).
Included with the Gas replace, is a framing heat shield Kit. This
Kit is fabricated from galvanized steel and arrives with three (3) pieces,
as shown below. The shields protect all adjacent combustible materials,
mantels and mouldings from excessive heat radiated by the replace.
Figures 6 6b.
. Fasten the two Side shield's () rst, and ensure they
are fastened in place as shown. These are installed with the Wide anges
facing the center of the replace opening, and the shallow ange toward
inside of room. These are also fastened with nails or screws, ush with
framing as shown in Figure 6 and Inset.
Combustible Framing Top Heat Shield , (one 1-pc).
Combustible Framing Heat Shield, completed.
. Next, fasten the Top shield (), with the Wide ange
face up, and the shallow ange toward inside of room, Figure 6a.
Nail or screw the top shield in place ush with framing, as shown
in gure 6b.
fireplace
framing
fasteners,
3-per. side
Both Side
shields typical
flush with
framing
INSET
Section
fireplace
framing
Top shield
fasteners,
3-pcs.
INSET
Section
flush with
framing
L42DF* Indoor Gas Fireplace
XG0181 - 112811
Installation
Flue cover and collar removal, Top Vented replace.
Flue cover and collar installation, Rear Vented replace.
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 7.
2. Next, Remove the Top ue collar's (5" and 8") on the ue outlet,
as shown in Figure 7.
3. Install the (removed) Rear ue cover and gasket material, to the
Top vent outlet. Fasten the cover with included hardware, as
illustrated Figure 8.
4. Install the (5" and 8") collars to the rear vent outlet using the
included hardware, as illustrated Figure 8.
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
Montigo supplies a variety of direct venting and termination options.
The direct vent termination location MUST be selected such that it is the
highest point in the venting assembly. 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 to meet the venting
guidelines laid out below please contact your Montigo dealer to discuss
power venting options.
Venting can originate from the unit through the top or through the rear.
Venting can terminate through the roof or through an exterior wall.
Refer to Appendix A - Termination Locations to ensure the planned
termination location is acceptable.
Once the termination location has been established, refer to the
appropriate section below for installation details. All replaces shipped
from the factory are Top vent. See Section 3-1 for converting the unit
from top vent to rear vent.
L42DF* Indoor Gas Fireplace
XG0181 -112811
Installation
The maximum termination point is 32’ above the replace (NOTE:
if the maximum termination height is used, the ame pattern
may be affected).
The Vertical termination must be a minimum 2’ higher than where
the termination exits the roong materials, (asphalt shingles,
cedar shakes, etc). This distance should be measured from the
high side of the roof slope where the ue ashing intersects the
roong materials. (see Figures 11 to 11c *).
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.
Install a restop at any location where venting passes through
combustible materials and construction.
Utilize support straps, or support plates, and rings (as required)
to meet acceptable building practices.
Install all roof ashing and storm collars as shown.
. 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
Support straps or
support plate & ring
2’ min.
Firestop
Firestop
2’
Firestop
3
2’ max Support plate
& ring
Obstacle
PVTK1
Termination
L42DF* Indoor Gas Fireplace
XG0181 - 112811
Installation
Rear vent, Roof mounted venting (1 = 90° bend).
Support ring
Support plate 32’ max
MEXT Sections
Termination
12”
Max.
Connection and installation of the vent components should adhere to
the following guidelines:
Use any combination of rigid and Flex pipe as required.
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.
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.
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.
When penetrating a combustible ceiling, a ceiling restop must
be used.
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.
PVTK1
L42DF* Indoor Gas Fireplace
XG0181 -112811
Installation
1
12”
2”
12”
12”
1). Installation of Termination with built in frame
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.
5). Installation of a termination shield for Vinyl Siding
The VSS Termination shield is installed when the exterior of a structure
is clad with Vinyl siding. It is placed directly above, and on-center with
the termination.
2). Installation of termination frame at time of framing
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.
Figure 13b. Installing a PTO termination with the BSR frame.
3). Installation of termination frame at time of framing in Masonry
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.
4). Installation of termination from inside structure
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")
Installing Heat Guards over Terminations 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, con-
crete or other
materials
Exterior Sheath-
ing, concrete or
other materials
Exterior Vinyl
siding
PTO-4 (5"/8")
Termination
VSS Vinyl shield
L42DF* Indoor Gas Fireplace
XG0181 - 112811
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 14 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",
L42DF* Top Vent Venting Graph for wall mounted
terminations.
Top Vented, wall mounted installation with1 elbow
(1 one 90° bend). The vent run must comply with Venting
Graph for Top vent, wall mounted terminations, Figure 14.
Top Vented, wall mounted Multi-elbow installation.
See Venting Graph for Top vent, wall mounted terminations,
Figure 14.
Vent terminations must not be recessed in walls or siding.
All through-the–wall terminations within 3’ of the replace must
have a Montigo Heat Shield (RHS101) installed. See
.
All through-the-wall terminations beyond 3' of the replace must
have a Montigo Heat Shield (RHS8) installed. See .
Once the proposed venting layout has been determined refer to
Figure 14 to ensure the layout is acceptable.
Top Vent
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 14.
The following details are some possible congurations for Wall mounted
terminations. See below.
Solid Section
Flex Section
Hearth
30”min
15’foot Max.
RHS8 Heat
Shield
Termination
Exterior
Wall
8' MIN AT MAX
Horizontal
WARNING:
An inspection of the explosion relief appers and door
be made prior to lighting the replace. 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.
RHS8 Heat
Shield
Termination
Hearth Exterior
Wall
36" Max.
Flex section
Min.
46"
A
C
B
36
If your installation does not fall
within the venting graph para-
meters, please contact Montigo
for Power Venting options.
Unacceptable vent run
within shaded area.
Acceptable vent run
within non-shaded area.
46”
36”
L42DF* Indoor Gas Fireplace
XG0181 -112811
Installation
Corner installation.
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-4 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
L42DF* Indoor Gas Fireplace
XG0181 - 112811
Installation
Rear Vent Venting Graph for wall mounted
terminations.
Rear Vented, wall mounted Multi-elbow
termination installation. Installation for L42DF* must have a
minimum vertical rise of 50".The vent run must comply with
the Venting Graph for Rear vent, wall mounted terminations,
Figure 17.
. Straight run, Rear Vented, wall mounted
termination for L42DF*, Figure 17.
■ All dimension lengths for vertical or horizontal runs are measured
from center of the vent pipe.
■ Venting runs must fall within the limits set by the venting graphs,
see Figure 17.
■ Fireplace must be converted to Rear Vent conguration prior to
running vent, see Figure 7 and 8.
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 72", this would be would not
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",
26 5/8”
12” N.G. ONLY
A
B
C
50”
48” If your installation does not fall
within the venting graph para-
meters, please contact Montigo
for Power Venting options.
Unacceptable vent run
within shaded area.
Acceptable vent run
within non-shaded area.
36” Max.
50” Min.
12”
Max.
Flex or Rigid
Section
23 3/8”
Min.
26 5/8”
26 5/8”
PXT Extension
RHS101 Heat
Shield
Termination
Hearth Exterior
Wall
NOTE:
12” MAX. horizontal run with no vertical lift,
N.G. ONLY.
12” MAX.
36” Max.
50” Min.
12”
Max.
Flex or Rigid
Section
23 3/8”
Min.
26 5/8”
26 5/8”
PXT Extension
RHS101 Heat
Shield
Termination
Hearth Exterior
Wall
NOTE:
12” MAX. horizontal run with no vertical lift,
N.G. ONLY.
12” MAX.
WARNING:
An inspection of the explosion relief appers and door
be made prior to lighting the replace. 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.
L42DF* Indoor Gas Fireplace
XG0181 -112811
Installation
■ 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.
■ When penetrating a combustible ceiling, a ceiling restop must
be used.
■ 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 are
available for installation of a Wall Mounted Termination. Use only Montigo
Vent Components. Use of non-Montigo parts will void the warranty and
may impede operation of the replace.
■ Use any combination of rigid and Flex pipe as required.
■ 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.
■ 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
L42DF* Indoor Gas Fireplace
XG0181 - 112811
Installation
The RHS8 Heat shield be used when the Termination is
() from the replace, or directly
off the rear of the replace, as shown gure 19a. The RHS101 Heat
Shield (Figure 19c and 19d) be used within the noted dimensions.
To install the RHS8, frame an opening in combustible construction,
Figure 19 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 19.
RHS8 Installation. (Install by sliding over vent pipe
where it passes through the combustible construction). 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.
Termination
Drywall / sheetrock
RHS101 Heat Shield, inner Section
RHS101 Heat Shield
Outer Section
Fireplace
The RHS101 Heat shield be used where the RHS8 Termination
(Figure 19 and 19a) be used. Use the RHS101 where any
of the dimensions are within the parameters shown, gure 19a.
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. (Note: ensure you
maintain the Max. 12" replace clearance). From the outside slide the
RHS101 outer section on see Figure 19c. To complete the installation
fasten the Heat Shield Outer Section & Termination frame to the structure
Figure 19d.
RHS8 Installation. (Minimum requirements).
RHS8 Heat Shield
1” Min. Both sides Typical
2” Min.
1” Min.
Combustible Framing
12” max
Combustible
framing
Termination
Drywall / sheetrock
RHS101 Heat Shield, inner Section
RHS101 Heat Shield
Outer Section
Fireplace
Vent pipe, from fireplace
RHS8 Heat
Shield
36” Min
46” Min.
PTO Termination
L42DF* Indoor Gas Fireplace
XG0181 -112811
Installation
Wiring for the SIT IPI Wiring Schematic
All L42DF* 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.
NOTE: 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
The has to modify theIncoming air. This will
ensure the ame is as per the design criteria. See Figures 22 & 22a.
. Closed Vane for Top Vent Fireplaces.
. Open Vane for Rear Vent Fireplaces.
L42DF* Indoor Gas Fireplace
XG0181 - 112811
Installation
After gas line is connected, 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.
WARNING!
When pressure testing the replace, Gas line, and input system
follow the appropriate local codes or your area. DO NOT connect
the replace to pressures in excess of 1/2lb. This will damage the
gas control valve.
Gas line access.
■ Verify that your replace 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 qualied service technician.
■ Optimum appliance performance requires proper input pressures.
■ Gas line sizing requirements will be determined in ANSI Z223.1
National Fuel Gas Code in the USA and CAN/CGA B149 in
Canada.
Pressure requirements are:
■ The manifold outlet pressure is set from the factory to the
appropriate pressure but should be veried.
■ To check pressures, control valves have a provision to remove
a 1/8” N.PT. plug to be tted 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 replace is being
installed.
■ See Figure 22 below 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.
0.875 dia.
10
3 1/2
7
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
Do not use ammonia based or abrasive cleaners on the glass, they will permanently
etch the surface. Use an approved gas fireplace glass cleaner such as Kel-Kem or
White off.
NOTICE
L42DF* Indoor Gas Fireplace
XG0181 -112811
Installation
WARNING!
We recommend careful consideration be given to the effects of
elevated mantel temperatures which may be in excess of product
design, for example: candles, plastic or pictures. This can cause
melting, deformation, discolouration or premature failure of T.V.
radio, and other electronic components.
Combustible mantels and facings.
WARNING!
When covering the upper metal portion of the replace, up to 4"
(as shown, Fig.24) with a non-combustible material :
The decorative facing materials may be subject to temperatures
in excess of 250° F. This should be considered when selecting
facing materials.
Combustible mantels and mouldings may be safely installed over the
top and on the front of the replace provided that they do not project
beyond shaded area shown in Figure 24.
When sizing the nish material for your replace, it is important to
remember the following:
The face of the replace may be painted to match the room decor,
provided you use a heat-resistant paint. Decorative facing must not
extend past the replace opening at all, because it will interfere with
the access to retainers for removal of glass door.
Installing the Nailing Flange Extension.
Once the replace is placed into the rough framed opening, and the
supplied steel lintel is in place, (Part No. H42074) (see Figure 2),
The supplied nailing extension must be placed along the top edge of
the replace and securely fastened in place to the metal lintel, and
combustible wood framing. Note: The nailing ange extension can be
substituted with a piece of NON-Combustible material of the same size
and thermal characteristics, ie: cement board or equivalent.
6"
Top of fireplace
Combustible Facing
Material
Combustible
Construction allowed
in shaded area
Steel Stud construction allowable
within the grey-out area
Horizontal Run (in.)
Vert
i
ca
l
He
i
g
h
t
(i
n.
)
Non-Combustible
Facing Material
Combustible Stud
with shield
Combustible surrounds.
Non-Combustible
Facing Material
Header
Drywall/Sheetrock
6”
3”
L42DF* Indoor Gas Fireplace
XG0181 - 112811
Installation
The doors are removed in a few simple steps. Follow these
below to remove the Horizontal access panel, unlatch the door buckles
and, remove the door. Replace in reverse order.
Locate the door buckles. (Both Sides Typical)
Door Latch Hook
Door Latch Slot
Hand-hold
Removing and installing the the Horizontal Access Panel
Door buckle Tool
1
Firmly grasp hand-hold end
of Door buckle tool and
place the machined end in
the slot under door frame.
(as shown)
Remove the Horizontal cover
by placing ngers in both nger
holes, then pushing away from
you and lifting out. Place it aside
during maintenance or cleaning.
Install in reverse order.
Installed Gas
Valve Cover
Finger Holes
To install the door, hook the top edge of the door frame into place. Lower
the door into position and follow the previous steps shown in reverse order.
Installing the Door:
2
Ensure the tool is rmly in
the lower end of the slot,
(as shown), Then pull toward
you (Caution: hold the tool
securely).
3
Pull hard if necessary to
release the spring tension.
(Caution: The latch springs
back with force, hold the tool
securely).
4
Remove the tool from the
latch slot. Ensure the latches
are hanging freely, the hook
end is released from the
bottom of the door. (Repeat
all 4-steps for the remaining
latches).
Step 8:
Grasp the Door on either side, usually midway and lift upward, lift
the door carefully up and away from the front of the replace. See
Figures 26g. Place the Door aside in a safe place while maintenance
and / or cleaning is being performed.
Removing and installing the glass doors. (Both Sides
Typical)
Other manuals for L42DF series
4
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4
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