Majestic DBT33 User manual

INSTALLER: DO NOT DISCARD THIS MANUAL - LEAVE FOR HOMEOWNER 10002789
08/00 Rev. 0
INSTALLATION INSTRUCTIONS & HOMEOWNER'SMANUAL
DO NOT STORE
OR USE GASOLINE OR OTHER
FLAMMABLE VAPOURS AND/OR
LIQUIDS IN THE VICINITY OF THIS OR
ANY OTHER APPLIANCE.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS:
* Do not try to light any appliance.
* Do not touch any electric switch
* Do not use any phone in your building.
* Immediately call your gas supplier from
your neighbours phone. Follow the gas
suppliers instructions.
* If you cannot reach your gas supplier
call the fire department
WARNING! IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
FOR YOUR SAFETY
Installation and service must be performed
by a qualified installer, service agency or
your gas supplier.
Top Vent
Direct Vent Models
DBT33
DBT36
DBT39

DBT33/DBT36/DBT39 -2- 10002789/0
TABLE OFCONTENTS
Please Read The Installation & Operating Instructions Carefully Before Using The Appliance.
Important: Read all the instructions and warnings carefully before starting the installation. Failure
to follow these instructions fully may result in a possible fire hazard and will void the manufacturers
warranty.
Appliance Installation instructions
Important curing/burning instructions ........................................................................................3
Locating your fireplace ...............................................................................................................3
Fireplace Dimensions .................................................................................................................4
Clearance to Combustibles .........................................................................................................5
Mantels........................................................................................................................................5
Hearths ........................................................................................................................................5
Framing and Finishing ................................................................................................................5
Final finishing .............................................................................................................................6
Gas Specifications.......................................................................................................................6
Gas Inlet & Manifold Pressures..................................................................................................6
Gas Line Installation...................................................................................................................7
Remote Switch Installation.........................................................................................................7
Converting the Appliance Between Gas Types...........................................................................8
Venting Installation Instructions
General Venting Information - Terminal Location .....................................................................9
Connecting Direct Vent Components........................................................................................11
How To Use The Vent Graph....................................................................................................11
Vertical sidewall Applications ..................................................................................................12
Vertical sidewall Installations ...................................................................................................13
Below Grade Installations.........................................................................................................14
Vertical Through-The-Roof Applications .................................................................................15
Vertical Through-The-Roof Installations ..................................................................................17
Venting Components - crimped end venting.............................................................................18
Venting Components - Twist Lock venting ..............................................................................19
Operating Instructions
Glass Warning ...........................................................................................................................20
General Maintenance ................................................................................................................20
Louvre Removal .......................................................................................................................20
Glass/Frame Removal...............................................................................................................20
Glass Cleaning ..........................................................................................................................20
Installation of Logs & Lava Rock.............................................................................................21
Flame & Temperature Adjustment............................................................................................22
Flame Characteristics & Appearance........................................................................................22
Lighting Instructions.................................................................................................................23
Troubleshooting Guide .............................................................................................................24
Replacement Parts
Part Number List.......................................................................................................................26
Parts Pictorial............................................................................................................................28
Optional Accessories
EB-1 Electrical Junction Box ...................................................................................................29
Fan Kits.....................................................................................................................................29
Ceramic Refractory Lining .......................................................................................................31
Window Screen Kit...................................................................................................................31
Decorative Bay Window...........................................................................................................32
Remote Control Units ...............................................................................................................32
Warranty Imformation...................................................................................................Back Cover

10002789/0 -3- DBT33/DBT36/DBT39
This gas fireplace should be installed by a qualified installer
in accordance with local building codes and with current CAN
/CGA-B149 (. 1 or .2) Installation codes for Gas Burning
Fireplaces and Equipment.
FOR U.S.A Installations follow local codes and/or the current
National Fuel Gas Code. ANSI Z223.1.
FOR SAFE INSTALLATION AND OPERATION PLEASE
NOTE THE FOLLOWING:
1. This fireplace gives off high temperatures and should be
located out of high traffic areas and away from furniture
and draperies.
2. Children and adults should be alerted to the hazards of the
high surface temperatures of this fireplace and should stay
away to avoid burns or ignition of clothing.
3. Caution, due to high glass surface temperature children
should be carefully supervised when they are in the same
room as the fireplace.
4. Under no circumstances should this fireplace be modified.
Parts removed for servicing should be replaced prior to
operating the fireplace again.
5. Installation and any repairs to this fireplace should be
carried out by a qualified service person. A professional
service person should be contacted to inspect this fireplace
annually. Make it a practice to have all of your gas fire-
places checked annually. More frequent cleaning may
be required due to excess lint and dust from carpeting,
bedding material, etc.
6. Control compartments, burners and air passages in this
fireplace should be kept clean and free of dust and lint.
Make sure that the gas valve and pilot light are turned off
before you attempt to clean this fireplace.
7. The venting system (chimney) of this fireplace should be
checked at least once a year and if needed your venting
system should be cleaned.
8. Keep the area around your fireplace clear of combustible
materials, gasoline and other flammable vapour and liq-
uids. This fireplace should not be used as a drying rack for
clothing, nor should Christmas stockings or decorations
be hung on or around the fireplace.
9. Under no circumstances should any solid fuels (wood,
coal, paper or cardboard etc.) be used in this fireplace.
10. The flow of combustion and ventilation air must not be
obstructed in any way.
11. When the fireplace is installed directly on carpeting, vinyl
tile or any combustible material other than wood, the
fireplace must be installed on a metal or wood panel
extending the full width and depth of the fireplace.
12. This fireplace must not be connected to a chimney flue
serving a separate solid fuel burning fireplace.
13. When the fireplace is not in use it is recommended that the
gas control valve be left in the OFF position.
This appliance has been approved for
after-market mobile home installations
IMPORTANT:
PLEASE REVIEW THE FOLLOWING CAREFULLY
Remove any plastic from trim parts before turning the fire-
place ON.
It is normal for fireplaces fabricated of steel to give off
some expansion and/or contraction noises during the start
up or cool down cycle. Similar noises are found with your
furnace heat exchanger or car engine.
It is not unusual for your gas fireplace to give off some
odour the first time it is burned. This is due to the curing
of the paint and any undetected oil from the manufacturing
process.
Please ensure that your room is well ventilated - open all
windows.
It is recommended that you burn your fireplace for a least
six (6) hours the first time you use it. If the optional fan
kit has been installed, place the fan switch in the “OFF”
position during this time.
INSTALLATION & OPERATING INSTRUCTIONS
LOCATING YOUR FIREPLACE
A - Flat on the wall B - Cross Corner
C - * Island D - ** Room Divider
E - ** Flat on wall (in corner) F - Chase Installation
* Island (C) and Room Divider (D) installation is possible
as long as the horizontal portion of the vent system (X)
does not exceed 20' (6.1 m). See details in the venting
section of this manual.
** When you install your fireplace in a Room divider (D)
or flat on the wall in a corner (E), a minimum distance
of 6" (153 mm) clearance must be maintained from the
perpendicular wall and the front of the appliance. See
(Y) in Fig. 1.
Fig. 1

DBT33/DBT36/DBT39 -4- 10002789/0
APPLIANCE DIMENSIONS
Appliance Dimensions
Ref. DBT33 DBT36 DBT39
A 838 mm (33") 914 mm (36") 991 mm (39")
B 733 mm (28.87") 870 mm (34.25") 870 mm (34.25")
C 416 mm (16.37") 533 mm (21") 533 mm (21")
D 787 mm (31") 838 mm (33") 914 mm (36")
E 559 mm (22") 610 mm (24") 610 mm (24")
F 356 mm (14") 406 mm (16") 406 mm (16")
G 810 mm (31.89") 946 mm (37.25") 946 mm (37.25")
H 152 mm (6") 181 mm (7.13") 190 mm (7.5")
I 149 mm (5.87") 171 mm (6.75") 159 mm (6.25")
J 200 mm (7.87") 254 mm (10") 213 mm (8.38")
K 297 mm (11") 343 mm (13.5") 318 mm (12.5")
Framing Dimensions
L 894 mm (35.18") 1010 mm (39.75") 1016 mm (40")
M 1264 mm (49.75") 1403 mm (55.25") 1422 mm (56")
N 708 mm (24.87") 714 mm (28.13") 718 mm (28.25")
ROD 368 mm (14.5") 419 mm (16.5") 419 mm (16.5")
ROW 851 mm (33.5") 927 mm (36.5") 1003 mm (39.5")
ROH 737 mm (29") 889 mm (35") 889 mm (35")

10002789/0 -5- DBT33/DBT36/DBT39
CLEARANCE TO COMBUSTIBLES
Appliance
Top............................. 0 mm (0")
Bottom....................... 0 mm (0")
Side............................ 0 mm (0")
Back........................... 0 mm (0")
Venting
Concentric sections of DV Vent
Top, bottom & sides .. 25 mm (1")
MANTELS
The height that a combustible mantel is fitted above the fire-
place is dependent on the depth of the mantel. This also applies
to the distance between the mantel leg (if fitted) and the
fireplace.
For the correct mounting height and widths refer to Fig. 2 and
the following Mantel Charts.
The fitting of a bay window trim kit does not effect the
distances and reference points referred to in the diagram and
chart.
Non-combustible mantels and legs may be installed at any
height and width around the appliance.
When using paint or lacquer to finish the mantel, such paint or
lacquer must be heat resistant to prevent discolouration.
HEARTH
A Hearth is not mandatory but it is recommended for aesthetic
purpose. We recommend a non-combustible hearth which
projects out 12" (305 mm) or more from the front of the
fireplace.
Cold climate Installation Recommendation:
When installing this unit against a non-insu-
lated exterior wall or chase, it is mandatory that
the outer walls be insulated to conform to appli-
cable insulation codes.
FRAMING AND FINISHING
1. Choose the unit location.
2. Place the unit into position and secure it to the floor with
1.5" (38 mm) screws, or nails. The holes to secure the
unit to the floor are located just behind the access door
grille on the left and right side of the unit.
3. Frame in the fireplace with a header across the top. It is
important to allow for the finished wall face when setting
the depth of the frame.
4. Attach the fireplace to the frame using the adjustable
frame drywall strips (located behind the access door for
shipping). Preset the depth to suit the facing material of
the wall. The strips are adjustable to 1/2"(13 mm), 5/8"
(16 mm) or 3/4" (19 mm), Fig. 3 & 4.
5. Screw through the slotted holes in the drywall strip and
into the pre-drilled holes in the fireplace side. Measure
from the face of the fireplace to the face of the drywall
strip to confirm the final depth.
Fig. 2

DBT33/DBT36/DBT39 -6- 10002789/0
FINAL FINISHING
Non-combustible materials such as brick or tile may be
extended over the edges of the face of the appliance. DO NOT
cover any vent or grille panels.
If a Trim Kit is going to be installed on the fireplace, the brick
or tile will have to be installed flush with the edges of the
appliance.
GAS SPECIFICATIONS
Max. Min.
Input Input
Model Fuel Gas Control BTU/h BTU/h
DBT33RN Nat. Millivolt 15,000 10,500
DBT33RP Prop. Millivolt 15,000 11,250
DBT36RN Nat. Millivolt 18,000 12,600
DBT36RP Prop. Millivolt 18,000 13,500
DBT39RN Nat. Millivolt 22,000 15,400
DBT39RP Prop. Millivolt 22,000 16,500
GAS INLET & MANIFOLD
PRESSURES
Fig. 3
Fig. 4
DBT33 / DBT36 / DBT39
CERTIFIED TO
ANSI Z21.88b-1999 / CSA Z2.33b-M99
Vented Gas Fireplace Heaters
Inlet Minimum
Inlet Maximum
Manifold Pressure
Natural Gas LP (Propane)
4.5" WC
7" WC
3.5" WC
11" WC
13" WC
10" WC

10002789/0 -7- DBT33/DBT36/DBT39
GAS LINE INSTALLATION
When purging the gas lines, the front glass must
be removed.
The gas pipeline can be brought in through the rear of the
fireplace as well as the bottom. Knockouts are provided on the
bottom behind the valve to allow for the gas pipe installation
and testing of any gas connection. It is most convenient to
bring the gas line in from the rear right side of the valve as
this allows fan installation or removal without disconnecting
the gas line.
The gas line connection can be made with properly tinned
3/8” copper tubing, 3/8” rigid pipe or an approved flex con-
nector. Since some municipalities have some additional local
codes it is always best to consult your local authority and the
CAN/CGA-B149 (.1 or .2) installation codes.
For U.S.A. Installations consult the current National Fuel Gas
Code, ANSI Z223.1
Always check for gas leaks with a mild soap and
water solution. Do not use an open flame for
leak testing.
The gas control is equipped with a captured screw type pres-
sure test point, therefore it is not necessary to provide a 1/8”
test point up stream of the control.
When using copper or flex connectors use only approved fit-
tings. Always provide a union when using black iron pipe
so that the gas line can be easily disconnected for burner or
fan servicing. See the gas specification for pressure details
and ratings.
The fireplace valve must not be subjected to any test pressures
exceeding 1/2 p.s.i.. Isolate or disconnect this and any other
gas appliance control from the gas line when pressure testing.
REMOTE ON/OFF SWITCH
Installation
1. Thread the wiring through the holes on the end panels of
the appliance. Take care not to cut the wire or insulation
on metal edges. Route the wire to a conveniently located
receptacle box.
2. Attach the wire to the ON/OFF switch and install the
switch into the receptacle box.
3. Connect the other ends of the wire to the gas control valve
as shown in Fig. 6.
Alternative Switch Location
The remote switch can be installed on the front/side of the
access door. Simply mount the switch to the bracket provided
and screw the bracket to either side of the frame, lining up the
screws with the pre-punched holes, Fig. 7.
Do not wire the remote ON/OFF wall switch for
the gas fireplace to the 120 volt power supply.
Fig. 5
Fig. 6
Fig. 7

DBT33/DBT36/DBT39 -8- 10002789/0
CONVERTING THE APPLIANCE
FROM LP TO NATURAL GAS OR
NATURAL GAS TO LP.
The DBT33 is convertible between Natural Gas an LP gas
(and vice-versa) with the use of a conversion kit purchased
seperately, see your dealer for the correct part number.
The DBT36 & 39 can only be converted from
Propane to Natural gas.
The conversion of this appliance from one gas
to another must be carried out by an authorized
service provider.
1. Disconnect power to the unit and shut off the gas supply.
2. Remove the glass/frame assembly.
3. Carefully remove the logs & lava rock material
4. Remove the screws that are holding the burner housing
in place.
5. Remove the burner housing. Depending on the model of
the appliance you may have to loosen the pilot bracket
retaining screw/nut to allow the pilot and bracket assem-
bly to tilt and give enough clearance to remove the burner
housing.
6. Remove the main burner orifice and replace it with the
orifice supplied in the conversion kit.
7. SIT Top Convertible Pilot
Gently lift off the pilot hood from the pilot. (Do not
remove the spring clip holding the hood in place). Using
a correctly sized Allen key unscrew the exposed orifice.
Insert the new orifice supplied in the kit, do not over
tighten the orifice. Replace the pilot hood ensuring the
index tab aligns with the notch on the hood.
PSE Pilot
Using a suitable wrench on the hexagonal body unscrew
the pilot hood assembly from the pilot, do not twist the
hood itself. Remove the orifice and replace it with the
new orifice supplied in the kit. Refit the pilot hood
assembly. Do not over-tighten the pilot hood. The hood
must return to its original alignment. Take care not to
damage the thermocouple, thermopile or igniter.
9. SIT 820 NOVA Gas Control Valve (Fig. 9)
a) Using a Torx T20 or slotted screwdriver, remove and
save the three pressure regulator mounting screws (A),
pressure regulator tower (B) and diaphragm (C).
b) Ensure the rubber gasket (D) is properly positioned and
install the new Hi/Lo pressure regulator to the valve using
the new screws (E) supplied with the kit. Tighten screws
securely. (Reference torque - 25 in.Lb).
c) Install the enclosed identification label (F) to the valve
body where it can be easily seen.
Honeywell Gas Control Valve (Fig. 10)
The Honeywell valve fitted to this unit is suitable
for use with LP or Natural Gas. It is converted to
the required gas application by the installation of a
colour coded “conversion screw”.
a) Using a suitable small screwdriver lift out the central
regulator cap from the ‘Hi - Lo’ knob on the valve.
b) Unscrew the exposed conversion screw.
c) Insert the new colour coded conversion screw. Do not
over-tighten the screw, it must be finger tight.
d) Refit the regulator cap.
e) Mount the conversion label supplied with the conver-
sion screw to the valve in a visible position.
10. Reassemble the fireplace in the reverse order, except for
the front glass. Leave this off until the unit has been
checked for leaks and the gas supply line has been bled.
11. After bleeding the gas line and checking for leaks with a
soap solution, replace the front glass. Fire up the unit,
check for flame impingement on the logs, adjusting them
if necessary. Check the manifold and supply pressures
against the appliance specifications.
The procedure for converting from one gas to
another is the same regardless of the initial gas
used. The only variation is in the orifice sizes
and component part numbers. Your authorized
service provider will ensure the correct parts are
used.
Fig. 9
Fig. 10

10002789/0 -9- DBT33/DBT36/DBT39
A = clearance above grade, veranda, porch, deck, or bal-
cony [* 12 inches (305mm) minimum]
B = clearance to window or door that may be opened [12"
(306mm)].
C = clearance to permanently closed window [minimum 12
inches (305mm) recommended to prevent condensation
on window]
D = vertical clearance to ventilated soffit located above
the terminal within a horizontal distance of 24 inches
(610mm) from the centre-line of the terminal [18 inches
(458mm) minimum]
E = clearance to unventilated soffit [12 inches (305mm) min-
imum].
F = clearance to outside corner see next page
G = clearance to inside corner see next page
H = * not to be installed above a meter/regulator assembly
within 36 inches (914mm) horizontally from the centre-
line of the regulator
† a vent shall not terminate directly above a side-walk or paved driveway which is located between two single
family dwellings and serves both dwellings *
‡ only permitted if veranda, porch, deck, is fully open on a minimum 2 sides beneath the floor *
* as specified in CAN/CGA B149 (.1 or .2) Installation Codes (1991) for Canada or for U.S.A. Installations follow
the current National Fuel Gas Code, ANSI Z223.1.
Note: Local codes or regulations may require different clearances.
I = clearance to service regulator vent outlet [*72 inches
(1828mm) minimum]
J = clearance to non-mechanical air supply inlet to building
or the combustion air inlet to any other fireplace [ *12
inches (305mm) minimum]
K = clearance to a mechanical air supply inlet [* 72 inches
(1828mm) minimum]
L = † clearance above paved side-walk or a paved driveway
located on public property [*84 inches (2133mm) mini-
mum]
M = clearance under veranda, porch, deck [*12 inches
(305mm) minimum ‡]
N = Clearance above a roof shall extend a minimum of 24"
(610mm) above the highest point when it passes through
the roof surface, and any other obstruction within a
horizontal distance of 18" (450mm).
Do not locate termination hood where excessive snow or ice
build up may occur. Be sure to check vent termination area
after snow falls, and clear to prevent accidental blockage of
venting system. When using snow blowers, make sure snow is
not directed towards vent termination area.
Location of Vent Termination
It is imperative that the vent termination be located observing
the minimum clearances as shown on this page.
*Check with local codes or in absence of same with CAN/
CGA B149 (.1 or .2) Installation Codes (1991) for Canada or
for U.S.A. Installations follow the current National Fuel Gas
Code, ANSI Z223.1.
Your fireplace is approved to be vented either through the side
wall, or vertically through the roof.
– Only venting components specifically approved and
labelled for this fireplace may be used.
– Minimum clearances between vent pipes and combusti-
ble materials is one (1") inch (25 mm).
– Venting terminals shall not be recessed into a wall or
siding.
– Horizontal venting must be installed on a level plane
without any incline or decline.
There must not be any obstruction such as bushes, garden sheds,
fences, decks or utility buildings within 24" from the front of the
termination hood.
GENERAL VENTING INFORMATION — TERMINATION LOCATION

DBT33/DBT36/DBT39 -10- 10002789/0
Fig. 11 Fig. 12
Fig. 13 Fig. 14 Fig. 15

10002789/0 -11- DBT33/DBT36/DBT39
HOW TOUSE THE VENT GRAPH
The vent chart should be read in conjunction with the follow-
ing vent installation instructions to determin the relationship of
the vertical and horizontal dimensions of the vent system
1. Determine the height of the centre of the horizontal vent
pipe exiting through the outer wall. Using this dimension
on the Sidewall Vent Graph below, locate the point it
intersects with the slanted graph line.
2. From the point of this intersection, draw a vertical line to
the bottom of the graph.
3. Select the indicated dimension, and position the fireplace
in accordance with same.
EXAMPLE A:
If the vertical dimension from the floor of the fire
place is 11' (3.4 m) the horizontal run to the face of
the outer wall must not exceed 14' (4.3 m).
EXAMPLE B:
If the vertical dimension from the floor of the fire
place is 7' (214cm), the horizontal run to the face of
the outer wall must not exceed 8-1/2' (2.6 m).
GENERAL INFORMATION ON
ASSEMBLING DV COMPONENTS
Crimped End Pipes
Before joining elbows and pipes apply a bead of high tempera-
ture sealant to the crimped end of the elbow or pipe.
Join the pipes using a 2" (50 mm) overlap and secure the
joints with three sheet metal screws, Fig. 16. Wipe off excess
sealant.
CANADIAN INSTALLATIONS:
The venting system must be installed in accordance with the
current CAN/CGA-B149 (.1 or .2) installation code.
U.S.A. INSTALLATIONS:
The venting system must conform to local codes and/or the
current National Fuel Code ANSI Z223.1.
Only venting components manufactured by CFM Majestic Inc.
can be used in Direct Vent systems.
Twist Lock Pipes
When using CFM Majestic Inc. Twist Lock pipe it is not
necessary to use sealant on the joints.
The only areas of the venting system that need to be sealed
with high temperature silicone sealant are the collars on the
fireplace and termination, and the sliding joint of any tele-
scopic vent section used in the system.
To join the twist lock pipes together, simply align the beads of
the male end with the grooves of the female end, then while
bringing the pipes together, twist the pipe until the flange on
the female end contacts the external flange on the male end.
It is recommended that you secure the joints with three sheet
metal screws however this is not mandatory with twist lock
pipe.
To make it easier to assemble the joints we suggest putting a
lubricant (Vaseline or similar) on the male end of the twist lock
pipe prior to assembly.
Fig. 16
Fig. 17 NOTE: When a 90º elbow is installed directly to the top
collar, the max. hori zontal run is 3ft. (See Fig. 19).

DBT33/DBT36/DBT39 -12- 10002789/0
VERTICAL SIDEWALL APPLICATIONS
Since it is very important that the venting system
maintain its balance between the combustion air
intake and the flue gas exhaust, certain limita-
tions as to vent configurations apply and must
be strictly adhered to.
The Vent Graph showing the relationship between vertical and
horizontal side wall venting will help to determine the various
dimensions allowable.
Minimum clearance between vent pipes and
combustible materials is one 1"(25mm) on top,
bottom and sides unless otherwise noted.
When vent termination exits through foundations less than 20"
below siding outcrop, the vent pipe must flush up with the
siding.
It is always best to locate the fireplace in such a way that
minimizes the number of offsets and horizontal vent length.
The horizontal vent run refers to the total length of vent pipe
from the flue collar of the fireplace to the face of the outer
wall.
Horizontal plane means no vertical rise exists on this portion
of the vent assembly.
• The maximum number of 90º elbows per side wall instal-
lation is three (3).
• If a 90º elbow is fitted directly onto the fireplace flange
the maximum horizontal vent run before the termination
is 36" (914 mm).
• If a 90º elbow is used in the horizontal vent run (level
height maintained) the maximum horizontal vent length is
reduced by 36" (914 mm), (Fig. 20). This does not apply
if the 90º elbows are used to increase or redirect a vertical
rise (Fig. 21).
Example: According to the chart the maximum horizontal
vent length in a system with a 7.5' vertical rise is 20' (6 m)
and if a 90º elbow is required in the horizontal vent it must
be reduced to 17' (5.2 m).
In Fig. 20 Dimension A plus B must not be greater than
17' (5.2 m).
• The maximum number of 45º elbows permitted per side
wall installation is two (2). These elbows can be installed
in either the vertical or horizontal run.
• For each 45º elbow installed in the horizontal run, the
length of the horizontal run MUST be reduced by 18"
(45cm). This does not apply if the 45º elbows are
installed on the vertical part of the vent system.
• The maximum number of elbow degrees in a system is
270º (See Fig. 21).
Example: In Figure 21
Elbow 1 = 90º
Elbow 2 = 45º
Elbow 3 = 45º
Elbow 4 = 90º
Total angular variation = 270º
Fig. 18
Fig. 19
Fig. 20
Fig. 21

10002789/0 -13- DBT33/DBT36/DBT39
VERTICAL SIDEWALL INSTALLATIONS
STEP 1
Locate vent opening on the wall. It may be necessary to
first position the fireplace and measure to obtain hole location.
Depending on whether the wall is combustible or non-combus-
tible, cut opening to size. (Fig. 22)
(For combustible walls first frame in opening. Fig. 22).
COMBUSTIBLE WALLS : Cut a 9-3/8"H x 9-3/8"W (240
mm x 240 mm) hole through the exterior wall and frame as
shown (Fig. 22).
NON-COMBUSTIBLE WALLS : Hole opening should be
7.5" (190 mm) in diameter.
STEP 2
Measure wall thickness and cut zero clearance sleeve parts to
proper length (MAXIMUM 12” / 305 mm). Assemble sleeve
and attach to firestop with #8 sheet metal screws (supplied).
Install firestop assembly (Fig. 23).
Zero clearance sleeve is only required for combustible walls.
STEP 3
Place fireplace into position. (Fig. 24). Measure the vertical
height (X) required from the base of the flue collars to the
centre of the wall opening.
STEP 4
Apply a bead of silicone to the inner and outer flue collars of
the fireplace and using three (3) screws attach an appropriate
length of vent to the fireplace. Follow with the installation of
the inner and outer elbow, again secure joints as described in
the section 'Joining DV Components'.
STEP 5
Measure the horizontal length requirement including a 2" (50
mm) overlap, i.e. from the elbow to the outside wall face plus
2" (50 mm)(or the distance required if installing a second 90º
elbow. (Fig. 25).
Always install horizontal venting on a level plane.
Fig. 22
Fig. 23
Fig. 24
Fig. 25

DBT33/DBT36/DBT39 -14- 10002789/0
STEP 6
Use appropriate length of pipe sections - telescopic or fixed -
and install the horizontal vent sections. The sections which go
through the wall are packaged with the starter kit, and can be
cut to suit if necessary. (Fig. 26).
Sealing vent pipe and firestop gaps with high temperature
sealant will restrict cold air being drawn in around fireplace.
STEP 7
Apply high temperature sealant to 4" (100 mm) and 7" (175
mm) collars or the termination one inch away from crimped
end. Guide the vent terminations 4" and 7" collars into their
respective vent pipes. Double check that the vent pipes over-
lap the collars by 2" (50 mm). Secure the termination to the
wall with screws provided and caulk around the wall plate
to weatherproof, Fig. 27. As an alternative to screwing the
termination directly to the wall you may also use expanding
plugs or an approved exterior construction adhesive. You may
also attach the termination with screws through the inner body
into the 4" vent pipe however for this method you must extend
the 4" pipe approximately 6" (150 mm) beyond the outer face
of the wall.
Support horizontal pipes every 3' (91 cm) with
metal pipe straps.
Check fireplace to make sure it is levelled and
properly positioned.
BELOW GRADE INSTALLATIONS
When it is not possible to meet the required vent terminal
clearances of 12" (305mm) above grade level a snorkel vent
kit is recommended. It allows installation depth of down to
7 " (178mm) below grade level. The 7" is measured from
the centre of the horizontal vent pipe as it penetrates through
the wall.
If venting system is installed below ground, we recommend a
window well with adequate and proper drainage.
Ensure sidewall venting clearances are observed.
If installing a snorkel a minimum 24" vertical rise is necessary.
The maximum horizontal run with the 24" vertical pipe is 36"
(915mm). This measurement is taken from the collar of the
fireplace (or transition elbow) to the face of the exterior wall.
See the Sidewall Vent Graph for extended horizontal run if the
vertical rise exceeds 24".
1. Establish vent hole through the wall (Fig. 22.
2. Remove soil to a depth of approximately 16" below base
of snorkel. Install drain pipe. Install window well (not
supplied). Refill hole with 12" of coarse gravel leaving a
clearance of approximately 4" below snorkel. (Fig. 28)
3. Install vent system.
4. Ensure a watertight seal is made around the vent pipe
coming through the wall.
5. Apply high temperature sealant caulking (supplied)
around the 4" and 7" snorkel collars.
6. Slide the snorkel into the vent pipes and secure to the
wall.
7. Level the soil so as to maintain a 4" clearance below
snorkel. (Fig. 28)
Fig. 26
Fig. 27

10002789/0 -15- DBT33/DBT36/DBT39
DO NOT BACK FILL AROUND SNORKEL.
A CLEARANCE OF AT LEAST 4” MUST BE
MAINTAINED BETWEEN THE SNORKEL AND
THE SOIL
If the foundation is recessed, use recess brackets (not supplied)
for securing lower portion of the snorkel. Fasten brackets to
wall first and then secure to snorkel with self-drilling #8 x 1/2
sheet metal screws. It will be necessary to extend the vent
pipes out as far as the protruding wall face (Fig. 29).
VERTICAL THROUGH-THE-ROOF
APPLICATIONS.
This Gas Fireplace has been approved for,
• Vertical installations up to 40' (12 m) in height. Up to
a 10' horizontal vent run can be installed within the vent
system using a maximum of two 90º elbows. (Fig. 30)
• Up to two 45º elbows may be used within the horizontal
run. For each 45º elbow used on the horizontal level the
maximum horizontal length must be reduced by 18".
Example: Maximum horizontal length
0 x 45º elbows = 10'
1 x 45º elbow = 8.5'
2 x 45º elbows = 7'
• A minimum of an 8' vertical rise.
• Two sets of 45º elbow offsets within these vertical instal-
lations. From 0 to a maximum of 8' of vent pipe can be
used between elbows. (Fig. 31)
Fig. 28
Fig. 29
Fig. 30

DBT33/DBT36/DBT39 -16- 10002789/0
• 7DVCS must be used to support offsets. (Fig. 36)This
application will require that you first determine the roof
pitch and use the appropriate starter kit. (See Venting
Components List)
• The minimum height of the vent above the highest point
of penetration through the roof is 2'. See Fig. 38.
VERTICAL RESTRICTOR PLATE
(DBT33 ONLY)
When installing the DBT33 with a Vertical Through-The-Roof
configured flue system the restrictor plate, (#10002495) sup-
plied with the appliance MUST BE FITTED TO THE
APPLIANCE at installation.
Fitting The Restrictor Plate
1. Remove the window glass/frame assembly.
2. Locate the firebox baffle assembly in the top rear area of
the firebox, Fig. 32.
3. Remove the four (4) nuts along the front edge, and the
three (3) screws along the rear edge of the baffle assembly.
Remove the baffle assembly from the firebox.
4. Remove the two (2) screws from the top face of the baffle
assembly, Fig. 32. Place the restrictor plate as shown in
Fig. 34 and secure by refitting the screws.
5. Refit the baffle assembly to the firebox, replacing the three
(3) screws and four (4) nuts.
6. Refit window glass/frame as per the appropriate sections
of this manual.
Fig. 31
Fig. 32
Fig. 33
Fig. 34

10002789/0 -17- DBT33/DBT36/DBT39
VERTICAL THROUGH-THE-ROOF
INSTALLATION
1. Locate your fireplace.
2. Plumb to centre of the (4") flue collar from ceiling above
and mark position.
3. Cut opening equal to 9-3/8" x 9-3/8" (240 mm x 240 mm).
4. Proceed to plumb for additional openings through the
roof. In all cases, the opening must provide a minimum of
1 inch clearance to the vent pipe, i.e., the hole must be at
least 9-3/8" x 9-3/8" (240 mm x 240 mm).
5. Place fireplace into position.
6. Place firestop(s) #7DVFS or Attic Insulation Shield
#7DVAIS into position and secure. (Fig. 35)
7. Install roof support (Fig. 36) and roof flashing making
sure upper flange of flashing is below the shingles. Fig.
37.
8. Install appropriate pipe sections until the venting is above
the flashing. (See Fig. 37).
9. Install storm collar and seal around the pipe.
10. Add additional vent lengths for proper height. Fig. 38.
11. Apply high temperature sealant to 4" and 7" collars of
vertical vent termination and install.
If there is a room above ceiling level, firestop
spacer must be installed on both the bottom and
the top side of the ceiling joists. If an attic is
above ceiling level a 7DVAIS (Attic Insulation
Shield) must be installed.
The enlarged ends of the vent section always
face downward, Fig. 37.
Fig. 35
Fig. 36
Fig. 37
Fig. 38

DBT33/DBT36/DBT39 -18- 10002789/0
CRIMPED END VENTING COMPONENTS
Starter Kit -Model 7DVSK - Sidewall Venting
Starter Kit - Model 7TDVSKV - Vertical Venting
for 7TDVSKV-A order 1/12 to 6/12 roof pitch
for 7TDVSKV-B order 7/12 to 12/12 roof pitch
for 7TDVSKV-F order flat roof
Starter Kit - Model 7DVSKS -Snorkel Kit
for Below Grade Installation
45º elbow kit
7DVT45 for Vertical Installation Offsets
90º transition elbow kit
7DVRT90 for Vertical Sidewall Applications
or thru-the-roof.
Telescopic vent sections
7DVP610 - 6" to 10" adjustable length
7DVP1018 - 10" to 18" adjustable length
7DVP1834 - 18" to 34" adjustable length
7DVP3466 - 34" to 66" adjustable length
Pipe sections for vertical or horizontal venting
Model 7DVP8" - 4 per box
Model 7DVP12" - 4 per box
Model 7DVP24" - 4 per box
Model 7DVP36"
Model 7DVP48"
Firestop Spacer
Model 7DVFS
Attic Insulation Shield
Model 7DVAIS
Vertical/Horizontal Combination Offset Support
Model 7DVCS
7DVSS Siding Shield (to protect siding)

10002789/0 -19- DBT33/DBT36/DBT39
TWIST LOCK VENTING COMPONENTS
Starter Kit -Model 7TDVSK - Sidewall Venting
Starter Kit - Model 7TDVSKV - Vertical Venting
for 7TDVSKV-A order 1/12 to 6/12 roof pitch
for 7TDVSKV-B order 7/12 to 12/12 roof pitch
for 7TDVSKV-F order flat roof
Starter Kit - Model 7TDVSKS -Snorkel Kit
for Below Grade Installation
45º elbow kit
7TDV45 for Vertical Installation Offsets
90º transition elbow kit
7TDV90 for Vertical Sidewall Applications
or thru-the-roof.
Telescopic vent sections
7TDVP1218 - 12" to 18" adjustable length
7TDVP3564 - 35" to 64" adjustable length
Pipe sections for vertical or horizontal venting
Model 7TDVP8"
Model 7TDVP12"
Model 7TDVP24"
Model 7TDVP36"
Model 7TDVP48"
Firestop Spacer
Model 7DVFS
Attic Insulation Shield
Model 7DVAIS
Vertical/Horizontal Combination Offset Support
Model 7DVCS
7DVSS Siding Shield (to protect siding)

DBT33/DBT36/DBT39 -20- 10002789/0
GENERAL OPERATING INSTRUCTIONS
GLASS INFORMATION
Only glass approved by CFM Majestic Inc.
should be used on this fireplace.
• The use of any non-approved replacement glass will void
all product warranties.
• Care must be taken to avoid breakage of the glass.
• Under no circumstances should this appliance be operated
without the front glass in place, or with the glass in a
damaged condition.
• Replacement glass (complete with gasket) is available
your dealer and should only be installed by a licensed
qualified service person.
GENERAL MAINTENANCE
Burner and Burner Compartment
It is important to keep the burner and the burner compartment
clean. At least once per year the logs and lava rock/ember
material should be removed and the burner compartment vacu-
umed and wiped out. Remove and refit the logs as per the
instructions in this manual.
Always handle the logs with care as they are fragile and may
also be hot if the fireplace has been in use.
FK24/FK12 Fan Assembly
The fan unit requires periodic cleaning. At least once per
month in the operating season open the lower louvre panels
and wipe or vacuum the area around the fan to remove any
build up of dust or lint.
Brass Trim
Clean the brass trim pieces using a soft cloth lightly dampened
with lemon oil. Do not use water or household cleaners on
any brass components.
LOUVRE REMOVAL
The top louvre panel is removed by lifting the panel vertically
and pulling it away from the appliance, Fig. 39.
The lower access door is hinged along the bottom edge and is
folded down to allow access.
GLASS / FRAME REMOVAL
1. Turn the fireplace OFF (including the pilot).
2. If the unit has been operating allow time for the compo-
nents to cool.
3. Remove the top louvre assembly.
4. Open the lower louvre panel.
5. Release the two clamps securing the lower edge of the
frame by pulling down on the handles, Fig. 40.
6. Tilt the glass frame out slightly at the bottom, lift the
frame up and away rom the fireplace.
7. To replace the glass frame reverse the procedure.
GLASS CLEANING
It is necessary to periodically clean the glass.
During start-up condensation, which is normal, forms on the
inside of the glass. This condensation causes lint, dust and
other airborne particles to cling to the glass surface.
Also initial paint curing may deposit a slight film on the glass.
It is therefore recommended that the glass be cleaned two or
three times with a non-ammonia based household cleaner and
warm water (we recommend gas fireplace glass cleaner) within
the first few weeks of operation.
After this initial cleaning process the glass should be cleaned
two or three times during each operating season depending on
the environment in the house.
Clean the glass after the first two weeks of
operation.
Fig. 39
Fig. 40