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
Watchyour step
Slipperyfloor
Hightemperatures
Glasshazard
Dangerof suffocation
Highvoltage
Toxic
Flammablematerials
Corrosive
Forklift trucks
Dangeroverhead crane
Explosionrisk
Oxidising
Dangerof death
Biohazard
LaserRadiation
Dangerof entrapment
Hotsurface
GeneralWarning
Blank
Gasbottles
Watchfor
fallingobjects
Electricity
Dangerfor cutter
Entrapmenthazard
Batteryhazard
Rotatingparts
Lowtemperature
Strongmagnetic field
Opticalradiation
Nonionizing
radiation
Radiation
Hazardousto the
Environment
Dangerof harming
yourhands
Irritant
Cutting
Watchyour step
Slipperyfloor
Hightemperatures
Glasshazard
Dangerof suffocation
Highvoltage
Toxic
Flammablematerials
Corrosive
Forklift trucks
Dangeroverhead crane
Explosionrisk
Oxidising
Dangerof death
Biohazard
LaserRadiation
Dangerof entrapment
Hotsurface
GeneralWarning
Blank
Gasbottles
Watchfor
fallingobjects
Electricity
Dangerfor cutter
Entrapmenthazard
Batteryhazard
Rotatingparts
Lowtemperature
Strongmagnetic field
Opticalradiation
Nonionizing
radiation
Radiation
Hazardousto the
Environment
Dangerof harming
yourhands
Irritant
Cutting
Watchyour step
Slipperyfloor
Hightemperatures
Glasshazard
Dangerof suffocation
Highvoltage
Toxic
Flammablematerials
Corrosive
Forklift trucks
Dangeroverhead crane
Explosionrisk
Oxidising
Dangerof death
Biohazard
LaserRadiation
Dangerof entrapment
Hotsurface
GeneralWarning
Blank
Gasbottles
Watchfor
fallingobjects
Electricity
Dangerfor cutter
Entrapmenthazard
Batteryhazard
Rotatingparts
Lowtemperature
Strongmagnetic field
Opticalradiation
Nonionizing
radiation
Radiation
Hazardousto the
Environment
Dangerof harming
yourhands
Irritant
Cutting
Watchyour step
Slipperyfloor
Hightemperatures
Glasshazard
Dangerof suffocation
Highvoltage
Toxic
Flammablematerials
Corrosive
Forklift trucks
Dangeroverhead crane
Explosionrisk
Oxidising
Dangerof death
Biohazard
LaserRadiation
Dangerof entrapment
Hotsurface
GeneralWarning
Blank
Gasbottles
Watchfor
fallingobjects
Electricity
Dangerfor cutter
Entrapmenthazard
Batteryhazard
Rotatingparts
XG0195 150204.2
P42DF Indoor
P Series
Residential
Fireplace
Installation & Maintenance Manual
Canadian Heating Products Inc. Langley, BC V4W 4A1 | Montigo Del Ray Corp. Ferndale, WA 98248

Instruction Manual Contents
Safety Alerts 3
Introduction 3
Section A: Before You Start 4
Installation Checklist 4
Rating Plate Sample 5
Section 1: Installation Overview and Product Dimensions 6
Section 2: Framing & Clearances 7
Clearances 8
Section 3: Venting 9
Section 3-1: Converting To Rear Vent 9
Section 3-2: Installing a Roof Mounted Direct Vent Termination
(PVTK-1) 10
Section 3-2-1: Venting Layout 10
Section 3-3: Installing a Wall Mounted Direct Vent Termination 12
Section 3-3-1: Venting Layout: Wall mounted termination. 13
Section 3-3-2: Venting Components 16
Section 3-3-3: Heat Shields 17
Section 4: Wiring 18
Section 5: Installing the Gas Line 19
Section 5-1: FUEL CONVERSION 19
Section 5-2: GAS PRESSURE 19
Section 5-3: GAS CONNECTION 19
Finishing Around the Fireplace 20
Section 6: Screen Installation and Removal 21
Section 7: Installing & Removing the Door 22
Section 8: Installing the Accessories 23
Installing the Firestones 23
Installing Optional Speckled Stones 24
Installing Optional Speckled Stones 25
Operation 27
SIT Proame 2 Electronic Ignition 27
Maintenance 28
General 28
Cleaning 28
Replacing Light Bulbs 29
Troubleshooting: 29
Replacement Parts: 30
Appendix A: Venting Terminations 31
Appendix B: Warranty 32
Appendix C: State of Massachusetts 33
Page 2
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
P42DF* Indoor Gas Fireplace
XG0195 - 150204.2

MODEL Natural Gas Liquid Propane Gas Rating (BTU hr) Linear Burner w/ Glass media Accessories SIT Electronic Ignition
P42DFN-F X 32,000 X X
P42DFL-F X 32,000 X X
Safety Alerts
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.
Addresses practices that are important, but
not related to personal injury
DANGER WARNING
CAUTION NOTICE
P42DF* Indoor Gas Fireplace
Safety Alert Key
Introduction
XG0195 - 150204.2
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.
Westronglyencourageyou toread andcarefullyfollow theinstructions
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.
Thismanual coversinstallation,operation andmaintenance. 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 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.
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
Introduction

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.
The direct vent termination location MUST be selected such
that it is the highest point in the venting assembly.
Should it be impossible to meet the venting requirements laid
out in Section 3: Venting, please contact a local Montigo dealer
regarding the use of a Montigo Power Vent.
Lay out the Vent run; calculating the required elbows and straight
runs of 5"/8" flex and/or rigid pipe.
Layout Electrical Requirements Refer to Section 4: Wiring, for
Details.
Refer to Section 5: 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 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
• Installations in the USA 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 Appendix C 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
frequent cleaning may be required due to excessive lint from carpeting, bedding material,
etc. It is imperative that control compartments, burners and circulating air passageways of
the fireplace are kept clean.
NOTICE
WARNING
A barrier designed to reduce the risk of burns from hot viewing glass is provided with this
appliance and shall be installed for the protection of children and other at-risk individuals.
If the barrier becomes damaged, the barrier shall be replaced with the manufacturer’s
barrier for this appliance.
WARNING
Any safety screen, guard, or barrier removed for servicing an appliance must be replaced
prior to operating the appliance.
Page 4
P42DF* Indoor Gas Fireplace
XG0195 - 150204.2
Installation
Section A: Before You Start

Rating Plate Sample
Figure A: Rating Plate for IPI eletronic ignition
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LB1223-V5.1 SIT IPI -with screen DEC06.2014
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 
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Teklynx LabelView Demo
Page 5
P42DF* Indoor Gas Fireplace
XG0195 -150204.2
Installation

Figure 1. Fireplace dimensions (Tolerance ± ⅛").
Please review the Pre-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
properclearancestoairconditioningducts,electrical wiring and plumbing.
Safety, as well as efciency of operation, should be considered when
selecting the replace location. 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:
43
4
"
121
51
2
"
140
42"
1068
30 1
2
"
776
39 1
2
"
1004
20 1
4
"
515
20 5
8
"
525
12 5
8
"
320
5"
127
8"
203
34 5
8
"
880
27 3
8
"
696
Page 6
P42DF* Indoor Gas Fireplace
XG0195 - 150204.2
Installation
Section 1: Installation Overview and Product Dimensions

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 7/8"
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 20.
Figure 2. Framing dimensions, (Straight wall & Corner
Installation).
Note: When sheetrock is not used behind
the replace, framing depth 21 7/8" may
be reduced by 5/8".
Figure 5. Non Combustible Framing for Top Vent or Rear
Vent, with alcove.
Figure4. Combustible Framing for shelves over the replace,
Top vent.
Figure3. Combustible Framing for shelves over the replace,
Rear vent.
42”
9”
34 1/2”
C
ombustible Header
Combustible Shelf
27 1/2”
12”
max.
Non Combustible
Stud 1/2” Above Top
RHS101
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”
2
17/8”
42
”
42”
Noncombustible
Stud
35”
84 1/2”
0" c
l
earance
to corners
42”
59 3/4”
40 1/2”
MEL Short
90° elbow
50 1/2
”
17 1/2”
C
ombustible Header
Combustible Shelf
RHS101
Non Combustible
Stud 1/2” above top
Note: Images are shown without screens for clarity purposes. However,
your replace should not be operated without proper installation of
screens.
Non-Combustible
Materials Only
MI
N
96”
10.5”
door
opening
3”
Rear
Vent
Ceiling
Floor
Alcove
area over
Fireplac e
Top Vent
N.G. & L.P.
12”
max. Non-combustibl
e
header
Min 1”
Fireplace without standard screen (pre-January 2015 manufacturing).
Fireplace with standard screen (post January 2015 manufacturing).
Page 7
P42DF* Indoor Gas Fireplace
XG0195 -150204.2
Installation
Section 2: Framing & Clearances

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 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 Top Vent applications, the minimum clearance is 0" from the rear
of the unit to a wall, or any combustible materials, and 17 1/2" to the
underside of any combustible shelf materials.
1” clearance is maintained on sides and bottom of vent runs and 2”
above horizontal vent runs to any combustible material.
MODEL Top - Rear vent † Top - Top vent † Rear Sides Floor Mantel
P42DF* 9" 17 1/2" 0" 0" 0" See Section
6 Finishing
around the
replace
Installing The Standoffs
To avoid elevated mantel temperatures, all P42DF* gas
replaces are required to have the supplied standoffs installed.
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 7 1/2" clearance.
7½”
Figure 6. Installing standoffs
NOTE:
† Clearance from top of replace to a ceiling within the replace enclosure.
Figure 7c. Securing the Nailing Flange Extension.
The supplied nailing extension must be placed along the top edge of
the replace and securely fastened into place, as shown in gure 7c.
Note: The nailing ange extension can be substituted with a piece of
NON-Combustiblematerialofthe same size andthermalcharacteristics,
ie: cement board or equivalent.
4"
Before installing the supplied nailing ange extension, fold tabs at bottom
of nailing ange to a 90 degree angle.
Figure 7. Bottom of Nailing Flange Extension
Figure 7a. Bottom of Nailing Flange Extension with tab folded at 90
degree angle
Figure 7b. Insert folded tabs into slots above the front of the replace
Front of Nailing Flange
Front of Fireplace
Installing the Nailing Flange Extension
Page 8
P42DF* Indoor Gas Fireplace
XG0195 - 150204.2
Installation

Figure 8. Flue cover and collar removal, Top Vented
replace.
Figure 8a. 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 8.
2. Next, Remove the Top ue collar's (5" and 8") on the ue outlet,
as shown in Figure 8.
3. Install the (removed) Rear ue cover and gasket material, to the
Top vent outlet. Fasten the cover with included hardware, as
illustrated Figure 8a.
4. Install the (5" and 8") collars to the rear vent outlet using the
included hardware, as illustrated Figure 8a.
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
Ventingcan terminate through theroofor through anexteriorwall.
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.
Silicone application is NOT required when joining Montigo vent
pipes and components. Note: Images are shown without screens for clarity purposes. However,
your replace should not be operated without proper installation of
screens.
Page 9
P42DF* Indoor Gas Fireplace
XG0195 -150204.2
Installation
Section 3: Venting

Figure9.Top vent,Roof mounted termination withno offset in ventrun.
Figure 9a. Top vent, Roof mounted with 1 offset (1 offset= two 90°
bends).
Figure 9b. 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.
Support ring
Support plate
Firestop
32’ max.
2’ min.
PVTK1
Termination
Support ring
Support plate
Firestop
32’ max.
2’ min.
Obstacle
PVTK1
Termination
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 9 to 9c).
Termination location must be a minimum 6’ from a mechanical
air inlet.
For a more detailed diagram of allowed termination locations,
see Appendix A.
A maximum of two offsets (each offset is made up of 2-90°
bends) may be made for vertical vent runs.
Firestops must be installed as required by National & local codes
Ensure all horizontal runs are supported with a minimum of 3
supports per 10’ of venting.
Install all roof ashing and storm collars as shown. Support straps or
support plate & ring
2’ min.
Firestop
Firestop
Firestop
3
2’ max Support plate
& ring
Obstacle
PVTK1
Termination
PEXT
PXT-10
Adaptor
Flue
Collar
Page 10
P42DF* Indoor Gas Fireplace
XG0195 - 150204.2
Installation