Montigo P42DF Prestige Series Instruction Manual

®
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
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
XG0195 030712
P42DF Indoor
Prestige Series
Residential
Fireplace
Installation & Maintenance Manual
Canadian Heating Products Inc. Langley, BC V4W 4A1 | Montigo Del Ray Corp. Ferndale, WA 98248

Safety Alert Key
Introduction .................................................................................3
Installation
Before you start .................................................................................4
Installation Checklist ...............................................................................4
Section 1: Installation Overview and Product Dimensions .....................5
Section 2: Framing & Clearances ...........................................................6
Framing the Fireplace .............................................................................6
Clearances .................................................................................6
Section 3: Venting .................................................................................7
Notes for Planning Venting ......................................................................7
▪ Section 3-1: Converting to Rear Vent ..................................................7
▪ Section 3-2: Installing PVTK-1 ..............................................................8
▪ Section 3-2-1 Venting Layout ..........................................................8
▪ Section 3-2-2: Venting Components ...............................................9
▪ Section 3-3: Installing Wall Mounted Direct Vent Termination ............10
▪ Section 3-3-1: Venting Layout Wall Mounted Termination ........11-13
▪ Section 3-3-2: Venting Components ..............................................14
▪ Section 3-3-3:Heat Shields ............................................................15
Section 4: Wiring ...............................................................................16
▪ SIT - IPI Wiring ........................................................................16
▪ Fan & Lights Wiring ................................................................16
Section 5: Installing the Gas Line .........................................................17
Section 5-1: Fuel Conversion ...............................................................17
Section 5-2: Gas Pressure ...................................................................17
Section 5-3: Gas Connection ...............................................................17
Section 6: Finishing ..............................................................................18
▪ Finishing Around the Fireplace .....................................................18
▪Fireplace Facing ............................................................................18
▪ Installing the Nailing Flange Extension .........................................18
Section 7: Removing the door ..............................................................19
Section 8:Installing the Accessories .....................................................20
▪ Installing the Firestones ................................................................20
Operation ............................................................................21
▪ For Your Safety - READ BEFORE LIGHTING ..............................21
▪ Lighting Instructions ......................................................................21
▪ Turn Off Gas to Appliance ............................................................21
Maintenance ........................................................................22 - 24
▪ General ...............................................................................22
▪ Cleaning ...............................................................................22
▪ Replacing Light Bulbs ...................................................................23
▪ Troubleshooting ............................................................................24
▪ Replacement Parts List ................................................................24
Appendix
A. Termination Locations ...............................................................25
B. Warranty ...............................................................................26
C. State of Massachusetts. ...........................................................27
Page 2
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
P42DF* Indoor Gas Fireplace
XG0195 - 030712

MODEL Natural Gas Liquid Propane Gas Rating (BTU hr) Linear Burner w/ Glass media Accessories SIT Electronic Ignition
P42DFNI X 32,000 X X
P42DFLI X 32,000 X X
Page 3
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
P42DF* Indoor Gas Fireplace
Safety Alert Key
Introduction
XG0195 -030712
INTRODUCTION
Congratulations on your purchase of a Montigo Fireplace.
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 qualied or licensed installer, plumber or gas tter as certied 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 to the right. Refer to your rating plate to verify
included options. Warranty and Installation Information: (See Appendix B)
The Montigo warranty will be voided by, and Montigo disclaims any
responsibility for, the following actions:
► Modication 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 qualied contractor.
WARNING
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

IMPORTANT MESSAGE: SAVE THESE INSTRUCTIONS
The P42DF* 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.
BEFORE YOU START:
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
Installation Checklist
Determine the desired install location of your replace.
See Section 1, Dimensions on Page 5, and refer to the Framing
Section 2 for details.
Select the location of your termination and resulting vent run.
Your selected termination location must be the highest point
in the Direct Vent installation.
Should it be impossible to meet the venting requirements laid
out in Section 4: 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 Section 5: Wiring, for
Details.
Refer to Section 6: Installing the Gas Line, for details on the
gas connection and access.
Refer to local codes and guidelines for installation requirements.
Installation and repairs should be done by a qualied
contractor and must conform to:
• Installations in Canada must conform to the current CAN/CGA
B-149.1 and .2 Gas Installation Code and local regulations. .................
• Installations in the USA must conform to local codes, or in the
absence of local codes to the National Fuel Gas Code, ANSI Z223.1 .
• See Appendix C for installation within the State of
Massachusetts. 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,
etc. It is imperative that control compartments, burners and circulating air passageways of
the fireplace are kept clean.
NOTICE
Page 4
P42DF* Indoor Gas Fireplace
XG0195 - 030712
Installation

Figure 1. Fireplace dimensions, (ALL Models, shown in Table on Page 3).
Please review the Installation Checklist on Page 4 for general information
on preparing for a successful installation of your replace.
The P42DF* replace may be installed in any location that maintains
proper clearances to air conditioning ducts, electrical wiring and plumbing.
Safety, as well as efciency of operation, should be considered when
selecting the replace location. Try to select a location that does not
interfere with room trafc, has adequate ventilation and offers an
accessible path for Direct Vent installation.
The replace dimensions are shown below:
Top View
Front View
Side View
5"
8"
8"
42"
21 1
4
"
34 5
8
"
30 1
2
"
27 1
2
"
39 1
2
"
19"
42 3
4
"
42"
6 1
4
"
Page 5
P42DF* Indoor Gas Fireplace
XG0195 -030712
Installation
Section 1: Installation Overview and Product Dimensions

1). Frame in the enclosure for the unit with framing materials. The
framed opening for the assembled replace is 42" wide, x 42" high x
21 1/4" deep, see Figure 2 .
NOTE: When constructing the framed opening, please ensure
there is access to install the gas line when the unit is installed.
See Figure 2.
Figure 2. Framing dimensions, (Straight wall & Corner
Installation).
Clearances
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 0" from the insulation
jacket 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 Top Vent applications, the minimum clearance is 0" from the
insulation jacket to a wall, or any combustible materials, and 17 1/2" to
the underside of any combustible shelf materials.
* (0" clearance from insulation jacket)
* When sheetrock is not used behind the
replace, framing depth 21 1/4" may be
reduced by 5/8".
Figure 5. Non Combustible Framing for Top Vent or Rear
Vent, with alcove.
Figure 4. Combustible Framing for shelves over the replace,
Top vent.
Figure 3. Combustible Framing for shelves over the replace,
Rear vent. Note: Rear vent available for Natural Gas only.
MODEL Top - Rear vent * Top - Top vent Back * Sides * Floor Mantel
P42DF* 9" 17 1/2" 0" 0" 0" 4"
42”
9”
34 1/2”
Combustible Header
Combustible Shelf
27 1/2”
12”
max.
Non Combustible
Stud 1/2” Above Top
RHS102
Non-Combustible
Materials Only
MIN
96”
12”
door
opening
3”
Rear
Vent
Ceiling
Floor
Alcove
area over
Fireplac e
Top Vent
N.
G
.
&
L.P.
12”
max. Non-combustible
header
Min 1”
7 5/8”
2
11/4”
42
”
42”
Noncombustible
Stud
35”
84 1/2”
0" c
l
earance
to corners only
42”
59 3/4”
40 1/2”
MEL Short
90° elbow
50 1/2”
17 1/2”
Combustible Header
Combustible Shelf
RHS102
Page 6
P42DF* Indoor Gas Fireplace
XG0195 - 030712
Installation
Section 2: Framing & Clearances

Figure 6. Flue cover and collar removal, Top Vented
replace.
Figure 7. Flue cover and collar installation, Rear Vented
replace.
Section 3-1: CONVERTING TO REAR VENT
Use the following instructions to convert an P42DF* 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.
NOTES FOR PLANNING VENTING:
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.
Page 7
P42DF* Indoor Gas Fireplace
XG0195 -030712
Installation
Section 3: Venting

Section 3-2: INSTALLING A ROOF MOUNTED
DIRECT VENT TERMINATION (PVTK-1)
This section applies to installations where the direct vent termi-
nation will be roof mounted.
Section 3-2-1: VENTING LAYOUT
Selection of components and details of venting lay out should
adhere to the following guidelines:
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 roong 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
roong materials. (see Figures 8 to 8c *).
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.
Figure 8. Top vent, Roof mounted termination with no offset in vent run.
Figure 8a. Top vent, Roof mounted with 1 offset (1 offset= two 90°
bends).
Figure 8b. Top vent, Roof mounted with 2 offsets (1 offset= two 90°
bends).
Roof mounted Terminations
The following details are some possible congurations 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
Page 8
P42DF* Indoor Gas Fireplace
XG0195 - 030712
Installation

Figure 8c. Rear vent, Roof mounted venting (1 = 90° bend).
Section 3-2-2: VENTING COMPONENTS
Select from the following components and associated Montigo part
numbers for installation of a Roof Mounted Termination. Use only
Montigo Vent Components. Use of non-Montigo parts will void the
warranty and may impede operation of the replace.
Support ring
Support plate 32’ max
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 Waterproong
Consultant for further recommendations.
A - Termination PVTK-1
B - Flex Sections PFL - 1 (12" f/f Section)
PFL - 18 (18" f/f Section)
PFL - 2 (24" f/f Section)
PFL - 3 (36" f/f Section)
PFL - 4 (48" f/f Section)
PFL - 6 (72" f/f Section)
C - Rigid Sections PXT - 5 (5" f/f Section)
PXT - 10 (10" f/f Section)
PEXT - 1 (12" f/f Section)
PXT - 20 (20" f/f Section)
PEXT - 2 (24" m/f Section)
PEXT - 3 (36" m/f Section)
PEXT - 4 (48" m/f Section)
PEXT - 6 (72" m/f Section)
D - Support Ring &
Plate
PSPXT-8
E - Firestop PS-8
F - Roof Flashing PRF-7 (1/12 - 7/12 pt.)
PRF-12 (7/12 - 12/12 pt.)
PVTK1
PEXT Sections
Page 9
P42DF* Indoor Gas Fireplace
XG0195 -030712
Installation

1
12”
2”
12”
12”
Section 3-3: INSTALLING A WALL MOUNTED
DIRECT VENT TERMINATION
This section applies to installations where the direct vent termination
will be wall mounted.
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
Figure 9. Installing a PTO4-F termination.
Figure 9a. Installing a PTO termination with the MSR frame.
Figure 9d. 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 9b. 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
Figure 9c. 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 long mounting 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.
Figure 9e. 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
Page 10
P42DF* Indoor Gas Fireplace
XG0195 - 030712
Installation