Montigo M40DV CL CR User Manual
Installation
®
C US
Operation &
Maintenance
M40DV-CR/CL
(MH)
Corner
Gas Fireplace
WARNING!
Improper installation, adjustment,
alteration, service or maintenance
can cause injury or property
damage. Refer to this manual. For
assistance or additional information
consult a qualied installer, service
agency or the gas supplier.
For Your Safety:
Do not store or use gaso-
line or other ammable
vapors and liquids in
the vicinity of this or any
other appliance.
What To Do 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 re department.
Safety Notice:
Glass doors on gas fireplaces are
extremely hot while the fireplaces 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.
Check local codes and read all
instructions prior to installation.
Installer: Leave this manual
with the appliance.
Consumer: Leave this man-
ual for future reference.
M40DV-CR/CL Corner Gas Fireplace
Warning:
Read this manual before installing, operating or troubleshooting this
appliance. Please retain this owner's manual for future reference.
Congratulations
Congratulations on selecting a Montigo M-Series gas fireplace, an
elagent and well designed gas fireplace built to your specifications.
The Montigo gas fireplace you have selected is designed to provide
the utmost in safety, reliability, and engineering standards.
As the owner of this new fireplace, you'll want to read and carefully
follow all the instructions contained in this Installation, Operations and
Maintenance manual. Pay special attention to all cautions, warnings,
and Important warnings.
This owner's manual should be retained for future reference. We
suggest that you keep it with all your other important documents and
product manuals.
The information contained in this owner's manual, unless noted otherwise, applies to all models, and gas control systems.
Your new Montigo M-Series gas fireplace will give you years of
durable, reliable use. Welcome to the Montigo family of gas fireplace
products.
Safety Alert Key:
• DANGER!
Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Used to address practices not related to personal injury.
• Important: Used to address practices not related to personal injury.
Table Of Contents
Congratulations
Safety Alert Key
Introduction ..............................................................................3
Installation
IInstalling the Fireplace Shell ......................................... 4
Installing the Gasline ...................................................... 5
The Remote Switch ........................................................ 5
Direct Vent Installation ................................................... 6
Terminations ......................................................6
Converting to Top Vent or Side Vent model
(Installing the Flue cover) ..................................7
Rear Vent Venting Requirements ......................7
Rear Vent Horizontal Venting Runs ................... 8
Rear Vent Vertical Venting Runs .......................9
Top Vent Venting Requirements ......................10
Top Vent Horizontal Venting Runs ................... 11
Top Vent Vertical Venting Runs .......................12
Reduced Vertical Venting ................................ 13
Construction around the fireplace
Facing ............................................................ 13
Mantels and Surrounds ................................... 13
Wiring ............................................................ 14
Removing and Installing the Door ...............................14
Installing the Logset ..................................................... 15
Installing the Ember Material........................................ 15
Operation ........................................................................15 - 18
Model M40DV-CR/CL ................................................... 16
Model M40DV-CR/CL-I ................................................ 17
Model M40DV-CR/CL-F ...............................................18
Maintenance ...................................................................19 - 20
Warranty ................................................................................. 21
Appendix
A. Termination Locations .............................................. 22
B. Mobile Home Approved Models ............................... 23
C. State of Massachusetts / Amendment ..................... 24
Notes ......................................................................... 25
Page 2
P/N XG0206
Introduction
The M40DV-CR/CL is a direct-vented, 2-sided Gas Fireplace with
an adjustable burner. It can be converted to both a top vent or rear
vent unit, and it is available in two models:
Model M40DV-CR/CL (continuous pilot)
Model M40DV-CR/CL-I (intermittent pilot)
Model M40DV-CR/CL-F (SIT Electronic)
Model M40DV-CR/CL-MH (mobile home)
For Mobile Home Approved Models See Appendix B
This manual covers installation, operation and maintenance. Lighting, operation and care of this fireplace can be easily performed by
the homeowner. However, all installation and service work should be
performed by a qualified or licensed installer, plumber, or gasfitter
who is qualified or licensed by the state, province, region, or governing body in which the appliance is being installed.
This manual covers both models and unless otherwise specified, the
designation M40DV-CR/CL refers to both models. Sections which are
specific to a particular model are marked with a symbol,
plus the appropriate model number.
The M40DV-CR/CL is rated for:
Natural Gas at 30,000 BTU/H (8.79 Kilowatts) max. input, and
24,000 BTU/H (7.03 Kilowatts) min. input.
Propane at 30,000 BTU/H (8.79 Kilowatts) max. input, and
24,000 BTU/H (7.03 Kilowatts) min. input.
The Montigo warranty will be voided by, and Montigo disclaims any
responsibility for, the following actions:
Modification of the fireplace 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 fireplace system.
Installation other than as instructed in this manual.
M40DV-CR/CL Corner Gas Fireplace
CAUTION!
Due to its high operating temperatures, the 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.
Consult your local Gas Inspection Branch on installation requirements for factory-built gas fireplaces. Installation & repairs should be
done by a qualified contractor.
Installations in Canada must conform to the current CAN/CGA
B-149.1 and .2 Gas Installation Code and local regulations. This fire-
place's fans must be electrically grounded in accordance with CSA
C22.1 Canadian Electrical Code Part 1 and/or Local Codes.
Installations in the USA must conform to local codes, or in the ab-
sense of local codes to the National Fuel Gas Code, ANSI Z223.1-
1988. 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. See Appendix C for replace installations
within the State of Massachusetts.
P/N XG0206
Page 3
M40DV-CR/CL Corner Gas Fireplace
Installation
Installing The Fireplace Shell
The fireplace may be installed in any location that maintains clearances to air conditioning ducts, electrical wiring and plumbing. Safety,
as well as efficiency of operation, must be considered when selecting
the fireplace location. Try to select a location that does not interfere
with room traffic, has adequate ventilation, and offers an accessible
pathway for Direct Vent installation.
The fireplace dimensions are shown below:
WARNING!
When this appliance is installed directly on carpeting, tile or any
combustible material other than wood flooring, it must be installed
on a metal or wood panel extending the full width and depth of
the appliance.
Framing
Unprotected combustible walls which are perpendicular to the
fireplace opening, must not project beyond the shaded area shown in
Figure 20b.
For protection against freezing temperatures, it is recommended that
outer walls of the chase be insulated with a vapour barrier. This will
reduce the possibility of a cold-air convection current on the fireplace.
Front View
End View Top View
Figure 1. Fireplace dimensions.
Clearances
The M40DV-CR/CL clearances to combustible materials are:
Top* 8"
Rear 1½"
Closed Side 1½"
Floor Combustible
Mantle** 6"
Flue Cover 1/2"
* Clearance from the top of the fireplace to
a combustible ceiling within the fireplace
enclosure.
** Refer to page 12.
41”
38”
Figure 2a. Framing dimensions.
40”
Figure 2b. Flue Cover clearances to combustibles when installing
the unit in a top vent conguration.
24”
Page 4
P/N XG0206
Installation
M40DV-CR/CL Corner Gas Fireplace
Installing The Gas Line
The gas line must be installed before finishing the M40DV-CR/CL fire-
place. Natural Gas requires a minimum inlet gas supply pressure of
5.5" W.C. & a manifold pressure of 3.5" W.C. Propane Gas requires a
minimum inlet gas supply pressure of 11" W.C. & a manifold pressure
of 10" W.C. Provision must also be made for a 1/8" N.P.T. plugged
tapping and be accessible for test gauge connection immediately upstream of the gas supply controls to the appliance. The fireplace gas
connection and the main operating gas valve are located behind the
removable trim at the bottom of the unit and need only be attached
to the gas line with an approved fitting, as required by the applicable
installation codes.
• Only use gas shut-o valves approved for use by the state, province,
region, or governing body, in which the appliance is being installed, or
as required by the applicable installation codes.
• Flexible gas connectors must not exceed 3 feet in length, unless it is
allowable within applicable installation codes.
Vent Installation
This section covers the installation of direct venting and terminations.
For a detailed diagram of allowed termination locations, see Appen-
dix A.
Installation Requirements
The M40DV-CR/CL fireplace uses Premium venting components
with:
5" inner dia. /8" outer dia.
Minimum clearance to combustible construction around the
vent pipe is 1" on all sides, except on horizontal venting where
the top of the pipe must have a clearance of at least 2".
Use only certied Montigo vent components. (Use of other parts
will void the Montigo warranty, and may impede the operation of
the fireplace.)
All joints must be secured with a minimum of two screws per joint
Vent terminations must not be recessed in walls or siding
Horizontal runs must be supported by a minimum of two supports
per horizontal run. A minimum of one screw on each side of support is also required
Flex vent sections may be stretched up to 50% of their total length
(eg. a 24" section may be stretched to 36")
Maximum horizontal run for a flex section with no vertical rise is 3
feet.
Flex vent sections over 3 feet must fall within the limits set by the
venting graph and must have a minimum vertical rise of 3 inches
per foot of flex.
Venting components can be used in any combination of solid/rigid
Figure 3. Gas line access.
The appliance and its individual shutoff valve must be disconnected
from the gas supply piping system during any pressure testing of that
system at test pressures in excess of 1/2 psig (3.5 kPa).
The appliance must be isolated from the gas supply piping system by
closing its individual manual shutoff valve during any pressure testing
of the gas supply piping system at test pressures equal to or less than
1/2 psig (3.5 kPa).
* After gas line is connected each appliance connection,
valve and valve train must be checked while under normal
operating pressure with either a liquid solution, or leak detection device, to locate any source of leak. Tighten any areas
where bubbling appears or leak is detected until bubbling
stops completely or leak is no longer detected. Do NOT use
a ame of any kind to test for leaks.
Solid vent sections may be cut less than half way from the tapered
end
Cautions:
Vent terminations can be very hot. If the termination is less than
7 feet above a public walkway, it should be fitted with a certified
Montigo Heat Guard. (Part no. PTKOG)
Do not obstruct, or attempt to conceal, the vent termination.
These actions will affect the operation of the fireplace, and may
be hazardous.
In heavy snow areas, take extra care to prevent snow buildup
from obstructing the vent termination.
Installing The Remote Switch
The M40DV-CR/CL is equipped with a remote-operated valve for use
with a wall switch. See Figure 19 for information on wiring the switch.
The valve is pre-wired and generates its own power. DO NOT con-
nect any external power to it.
Note: The switch location must not exceed 30' from the fireplace.
P/N XG0206
Page 5
M40DV-CR/CL Corner Gas Fireplace
12
12
1212
12
11
11
Installation
Vent Terminations
Installing Terminations with Built-In Frames
1. Frame the termination opening to 11" x 11".
2. Fasten the termination to the studs using a minimum of 4
PTO-3F
Figure 4a. Installing a PT0-3F termination.
Installing Terminations with MSR Frames
1. Frame the termination opening to 12" x 12".
2. Fasten the termination to the studs using a minimum of 4 screws.
Installing Heat Guards over Terminations
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.
PTKOG
Figure 4d. Installing the heat guard.
MSR
PTO-3
Figure 4b. Installing a PT0-3 termination with the MSR frame.
Installing Terminations with MOSR Frames
1. Frame the termination opening to 12" x 12".
2. Fasten the MSR frame to the interior side of the studs using a
minimum of 4 screws.
3. Insert the termination into the MSR frame as shown here, and
attach by screwing through the four pilot holes in the termination.
MOSR
PTO-3
Figure 4c. Installing a PT0-3 termination with the MOSR frame.
Page 6
P/N XG0206
Installation
M40DV-CR/CL Corner Gas Fireplace
Converting to Top Vent/ Rear
Vent (Installing the Flue Cover)
Rear Vent
An M40DV-CR/CL is shipped ready for a rear vent installation.
1. The outer flue cover must be secured in place with a minimum of
2 screws as shown below.
Top Vent
The flue cover may be converted for a top vent installation.
1. Remove the inner and outer flue covers from the top vent flue
collar.
2. Install both the inner and outer flue covers on the rear vent flue
collar as shown in figure 5a.
3. The outer flue cover must be secured in place with a minimum of
Venting Requirements
If your installation requires more than 12" of horizontal venting, some
vertical lift is required. Use the vent graph below to determine an
acceptable vent run. Unacceptable venting can affect the fireplace's
performance.
the maximum horizontal vent run is 16 feet
The Venting Graph
Measure the vertical height from the fireplace hearth to the centre of
the termination and the horizontal run from the from the fireplace flue
collar to the wall flange of the termination. Plot on the Venting Graph
(Fig. 6) with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
Center of vent 29½"
Figure 5a. Installing the ue cover.
Figure 6. Venting Graph.
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 82", and the horizontal run to the wall flange of the vent termination is 156", this
would be an acceptable installation.
Example B: (Acceptable Installation)
If the vertical dimension from the hearth is 72" and the horizontal
run to the wall flange of the vent termination is 36", this would be
an acceptable installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 48" and
the horizontal run to the wall flange of the vent termination is
108", this would NOT be an acceptable installation.
Figure 5b. Flue cover installation
for rear vented replace.
P/N XG0206
Figure 5c. Flue cover installation
for top vented replace.
Page 7
M40DV-CR/CL Corner Gas Fireplace
Installation
Horizontal Vent Installation
Vent systems that terminate through a wall may comprise up to seven
different components:
A - Termination PTO-3
PTO-3F
B - Stucco Kits MSR (stucco frame)
MOSR (stucco can)
D - Flex sections PFL-1 (12" section)
PFL-2 (24" section)
PFL-3 (36" section)
PFL-4 (48" section)
E - Rigid sections PEXT-1 (12" section)
PEXT-2 (24" section)
PEXT-3 (36" section)
PEXT-4 (48" section)
F - Extensions PXT- 5 (5" section)
PXT-10 (10" section)
G - 90° elbow PEL-90F/F
PEL-90M/M
H - Heat Shield RHS101 ( for 5"/8" venting)
Short Configurations:
For installations straight through the wall, use an PTO-3/-3F termination and PXT-5 or PXT-10 to achieve the desired length. The maximum horizontal vent run with no vertical lift is 12". See Figure 7.
To install the heat shield, slide one section over the vent pipe on the
inside of the wall opening, with the circular portion inside the wall cav-
ity. Screw the shield in place over the wall opening. Install the second
section on the outside of the wall opening sliding the circular portion
into the wall opening. Refer to Figure 8.
Figure 8. Heat Shield for short horizontal installation. Install by sliding
over the vent pipe where it connects to the termination.
Long Vent Runs:
For longer or more complex vent runs, vertical lift is required. First
ensure that the planned run is acceptable using the Vent Graph. Plan
out the required components using the chart above. You may be able
to use fewer components using the chart below.
Example:
A 10' section of rigid pipe and a 90° elbow may be used in conjunction with a 3 ft. flex section (PFL-3) will, when extended in a chase,
allow for a maximum horizontal run of twelve and one-half feet from
the centre of the fireplace to outside wall and a minimum of 7'6" when
retracted in opposite direction. (See Figure 9.)
"D" flex sections and "E" solid sections may be used in conjunction
with one another to obtain different possible horizontal length installations. NOTE: Flex section must not exceed maximum horizontal
length of 3 feet, and for this application the top clearance is to the
Figure 7. Short horizontal installation.
Heat Shields
Due to high flue temperatures, the heat shield (RHS101) must be
used on all installations straight through the wall, at the point
where the vent pipe connects to the termination. With the heat shield,
vent clearances can be maintained at 1". The heat shield is not
included with the fireplace.
Page 8
Figure 9. Extended horizontal installation using a combination of rigid
and ex venting.
P/N XG0206
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