Montigo MD34 BV User Manual
Installation
Operation &
Maintenance
MD34-BV
Homefire
Warning:
Improper installation, adjustment, altera-
tion, 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 gasoline
or other ammable vapors
and liquids in the vicinity of
this or any other appliance.
Modular
Gas Fireplace
Check local codes and
read all instructions
prior to installation.
Leave this manual with
the owner.
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.
MD34-BV Homefire
Table Of Contents
Introduction ............................................................................... 2
Installation
Installing the Fireplace Shell .......................................... 3
Installing the Gasline ......................................................
The Remote Switch ........................................................ 4
B-Vent Installation .......................................................... 4
Construction around the fireplace
Facing ................................................................ 5
Mantels and Surrounds ..................................... 5
Wiring ......................................................................5 - 6
Installing the Logset ....................................................... 6
Removing and Installing the Insert ................................. 7
Removing and Installing the Door .................................. 7
Operation ............................................................................8 - 10
Maintenance ..................................................................... 10 - 11
Warranty .................................................................................. 12
Appendix
A. Spare Parts .............................................................. 13
CAUTIONS
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.
Introduction
About this fireplace:
Thank you for choosing a Montigo Gas Fireplace. The MD34-BV features a dual burner with glowing embers and a realistic fibre logset.
TheMD34 is available in two versions:
4
MD34-BV -- Standard (Continuous) Pilot
MD34-BV-I -- Intermittent (Electronic) Pilot
The MD34-BV is certified in Canada and the USA as a Vented Gas
Fireplace Heater (ANSI Z21.88-2000· CSA 2.33-2000) and is rated for:
Natural Gas 21,500 BTU/H (6.30 Kilowatts) Input
15,050 BTU/H (5.13 Kilowatts) Output
Propane 21,500 BTU/H (6.30 Kilowatts) Input
15,050 BTU/H (4.41 Kilowatts) Output
How to use this manual:
This manual covers all models and unless otherwise specified, the
designation MD34-BV refers to all models. Sections which are specific to a particular model are marked with a
symbol, plus the appropriate model number.
Warranty and Installation Information:
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.
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. If the
optional air-circulating fan kit is installed, it 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
absense of local codes to the National Fuel Gas Code, ANSI
Z223.1-1988. If the optional air-circulating fan is installed, it must be
grounded in accordance with local codes or, in the absence of local
codes, with the National Electrical Code, ANSI/NFPA 70-1987.
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XG0305
Installation
15
32
30 ¾
38 ½
33
15 3/4
39
22 ¼
42
0" clearance
to corners only
33
59 3/8
34
C
15
31 1/2
8 ½
Ø4" B-Vent
34
24 1/2
32
12
1/8
4 3/4
4 3/4
Installing The Fireplace Shell
The fireplace may be installed in any location that maintains proper
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 Vent and Combustion Air installation. Refer to
page 4 - Vent Installation for more information.
The fireplace dimensions are shown below:
Top View
MD34-BV Homefire
Unprotected combustible walls which are perpendicular to the
fireplace opening, must not project beyond the shaded area shown in
Figure 5b.
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.
Framing
* When sheetrock
is not used behind
the fireplace, framing depth may be
reduced to 15"
*
Front View
Figure 1.
Fireplace dimensions.
Clearances
The MD34-BV clearances to combustible materials are:
Top* 16"
Back 0"
Side 1"
Floor 0"
Mantle** 9"
B-Vent*** See Notes
* Clearance from the top of the fireplace to a
combustible ceiling within the fireplace enclosure.
** Refer to page 5.
*** Use clearances specified by the manufacturer
of the B-Vent.
Figure 2. Framing dimensions.
Side View
Figure 3. Corner framing dimensions.
Installing a Shelf Over the Fireplace
When installing a shelf over the top of the fireplace, the minimum allowable clearance from the top of the fireplace to a shelf is 16".(Prop-
er clearance must be maintained around the vent pipes, as specified
by the B-Vent manufacturer.)
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.
XG0305
Page 3
MD34-BV Homefire
Installation
Installing The Gas Line
The gas line must be installed before finishing the MD34-BV Fireplace. 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 is located behind
the removable brass 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.
Figure 4. Gas line access.
During any pressure testing of the gas supply piping that excedes 1/2
psig (3.5 kPa), the appliance and its individual shutoff valve must be
disconnected from gas supply system.
When pressure testing the gas supply piping system at test pressures
of less than or equal to 1/2 psig (3.5 kPa), the appliance must be
isolated from the gas supply piping system by closing its individual
manual shutoff valve.
B-Vent Installation
The MD34-BV is certified for use with standard 4" B-Vent and
requires no B-Vent appliance connector. Simply attach the B-Vent to
the fireplace flue collar, and secure it using 1/4" sheet metal screws.
Do not penetrate the inner sleave of the B-Vent when tightening the
screws.
Refer to the current CAN/CGA B-149.1 and .2 or ANSI Z223.1-1988
Gas Installation Code for specific vent sizing.
CAUTION:
Test your B-Vent installation after completion to ensure that
no combustible by-products are spilling from the fireplace
opening. This draft test should be performed after a three(3)
minute warm up period. The manufacturer will not be responsible for any installations with inadequate draw.
Note: 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 flame of any kind to test for leaks.
Installing The Remote Switch
The MD34-BV's gas valve, located behind the lower brass trim, may
be connected to a wall switch. The valve generates its own power on
a millivolt circuit. Use only low voltage wire, and DO NOT connect
any external power to it.
Refer to Figure 12 for wiring requirements.
Note: The switch location must not exceed 30' from the fireplace.
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XG0305
Installation
Top of fireplace
C
omb
ust
ible
Fac
ing
Combustible cons truction
allowed in shaded area.
123456789101112
Sheetrock/
D
ry
w
al
l
Header
3
45
Honeywell (Q3450)
Pilot Assembly
Pilot Electrical
Harness Connector
Hon
eywell
Gas
Control (SV9501M)
Gas Control
Connec
tor
Fuse
Limit
Switch
Wall
Switch
Fan Plug
Receptacle
Junction Box
Junction Box Cover
White
Black
Green
40 VA
Transformer
115VAC
24VAC
Grnd Screw
Finishing Around the Fireplace
Combustible mantels and mouldings may be safely installed over the
top and on the front of the fireplace provided that they do not project
beyond shaded area shown in Figure 5a. Side wall clearances are 3".
Combustible surrounds may be installed with 3" clearance to the side
of the fireplace as shown in Figure 5b.
Fireplace Facing
When selecting the finish material for your fireplace, it is important
to remember the following: BRASS TRIMS MUST NOT BE OB-
STRUCTED IN ANY WAY - to do so restricts the air supply for
the control compartments and heat exchanger it also prevents
access for servicing controls.
The face of the fireplace may be painted to match the room decor,
provided you use a heat-resistant paint. Decorative facing must not
extend past the fireplace opening at all, because it will interfere with
the access to retainers for removal of glass door.
MD34-BV Homefire
Figure 5b. Combustible surrounds.
Painting:
Special care is recommended by the Master Painters and Decorators
Association, when painting the fireplace surrounds, to select and apply a quality Alkyd sealer prior to the applying of latex paints. This is
to prevent leaching of water from evaporation and causing a brownish
staining effect to paint over coats.
Figure 5a. Combustible mantles and facings.
Mantels & Surrounds
NOTE: National Canadian Gas Association mantel test requirements
are for fire hazard prevention to combustible materials.
New technology, to meet consumer and government demands for the
wise use of energy, has prompted us to manufacture many models of
fireplaces which are hot, fuel and energy efficient.
Please be aware; temperatures over the mantel will rise above normal room temperature and walls above fireplace may be hot to touch.
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, discoloration or premature failure of T.V. and
radio components.
Wiring
Gas Control and Pilot Wiring
MD34-BV-1
XG0305
Figure 6. Wiring for the MD34-BV-I with Honeywell gas control and
pilot.
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