Majestic fireplaces DVHVAC36 Mounting instructions

10001195 1/07 Rev. 5
CERTIFIED
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DO NOT STORE OR USE
GASOLINE OR OTHER
FLAMMABLE 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 electric switch; do
not use any phone in your
building.
• Immediately call your gas supplier
from your neighbor's 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.
PLEASE READ THIS MANUAL
BEFORE INSTALLING AND USING
APPLIANCE
INSTALLER/CONSUMER
SAFETY INFORMATION
FOR YOUR SAFETY
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
Rear Direct Vent
Model: DVHVAC36
Homeowner's Installation
and Operating Manual
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.

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DVHVAC36
10001195
Table of Contents
PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING APPLIANCE.
Thank you and congratulations on your purchase of a CFM Corporation fireplace.
IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these
instructions may result in a possible fire hazard and will void the warranty.
Installation & Operating Instructions
Important Instructions ..........................................................................................................................3
Fireplace Dimensions ..........................................................................................................................4
Locating Your Fireplace .......................................................................................................................5
Clearance to Combustibles .................................................................................................................5
Unit Assembly ......................................................................................................................................5
Framing and Finishing .........................................................................................................................6
Supply Air Duct Systems .....................................................................................................................6
Mantel .............................................................................................................................................6
Return Air Plenum ...............................................................................................................................6
Air Conditioning ...................................................................................................................................6
Final Finishing .....................................................................................................................................7
Hearth .............................................................................................................................................7
Gas Inlet and Manifold Pressures .......................................................................................................7
High Elevations ....................................................................................................................................7
Gas Specifications ...............................................................................................................................7
Gas Line Installation ............................................................................................................................7
Electrical Specifications .......................................................................................................................8
Electrical .............................................................................................................................................9
General Venting Information
General Venting ..................................................................................................................................9
General Venting Information - Termination Location .........................................................................10
General Information Assembling Vent Pipes .....................................................................................11
Twist Lock Pipes ................................................................................................................................11
How to Use the Vent Graph ...............................................................................................................12
Sidewall Venting Graph .....................................................................................................................12
Corner Installation .............................................................................................................................12
Rear Wall Venting Applications & Installation ....................................................................................12
Vertical Sidewall Applications & Installation .......................................................................................13
Below Grade Installation ....................................................................................................................16
Vertical Through-the-Roof Applications & Installation ........................................................................17
Twist Lock Venting Components .......................................................................................................19
Operating Instructions
General Glass Information .................................................................................................................20
Louvre Removal ................................................................................................................................20
Window Frame Assembly Removal ...................................................................................................20
Glass Cleaning ..................................................................................................................................20
Installation of Logs, Lava Rock & Ember Material .............................................................................21
Setting Temperature Rise ..................................................................................................................21
Lava Rock ..........................................................................................................................................21
Flame Adjustment ..............................................................................................................................21
Emergency Heat ................................................................................................................................21
Flame Characteristics ........................................................................................................................21
Inspecting the Venting System ..........................................................................................................22
Inspecting the Venting/Heating Exchange System ............................................................................22
Ceramic Refractory Installation .........................................................................................................22
Lighting and Operating Instructions ...................................................................................................23
Troubleshooting .................................................................................................................................24
Maintenance
Cleaning the Standing Pilot Control System ......................................................................................25
Replacement Parts .......................................................................................................................................26
Optional Accessories
Decorative Bay Window ....................................................................................................................28
Warranty ........................................................................................................................................................29
Energuide ......................................................................................................................................................30

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DVHVAC36
10001195
IMPORTANT:
PLEASE REVIEW THE FOLLOWING CAREFULLY
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 CFM Corporation gas
fireplace to give off some odor 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 at
least ten (10) hours the first time you use it.
This gas fireplace should be installed by a qualified
installer in accordance with local building codes and with
current CSA-B149.1 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/NFPA 54.
In the Commonwealth of Massachusetts, all gas fitting
and installation of this heater shall only be done by a
licensed gas fitter or licensed plumber.
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. Children should be carefully supervised when they are
in the same room as your fireplace.
4. Under no circumstances should this fireplace be modi-
fied. Parts removed for servicing should be replaced
prior to operating this fireplace again.
5. Installation and any repairs to this fireplace should
be carried out by a qualified service person. A profes-
sional service person should be contacted to inspect
this fireplace annually. Make it a practice to have all of
your gas fireplaces 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 fire-
place.
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 combusti-
ble materials, gasoline and other flammable vapor and
liquids. This fireplace should not be used as a drying
rack for clothing, nor should Christmas stockings or
decorations be hung in the area of it.
9. Under no circumstances should any solid fuels (wood,
coal, paper or cardboard etc.) be used in this fire-
place.
10. The flow of combustion and ventilation air must not
be obstructed in any way.
11. Whether the fireplace is installed directly on
carpeting, vinyl tile or any combustible material other
than wood, this fireplace must be installed on a metal
or wood panel extending the full width and depth of
the fireplace.
Installation & Operating Instructions
The appliance may be installed in an aftermarket
permanently located, manufactured (mobile) home,
where not prohibited by local codes.
This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is not
convertible for use with other gases unless a certi-
fied kit is used.
Proposition 65 Warning: Fuels used in gas, wood-
burning or oil fired appliances, and the products of
combustion of such fuels, contain chemicals known to
the State of California to cause cancer, birth defects
and other reproductive harm.
California Health & Safety Code Sec. 25249.6
12. This fireplace requires adequate ventilation and
combustion air to operate properly.
13. The unit must be adjusted to obtain a temperature
rise of 25-55°F, at maximum input rate.
14. The fireplace must be electrically grounded in
accordance with local codes. In the United States,
all electrical and grounding must also conform to the
current National Electric Code, ANSI/NFPA No. 70. In
Canada, all electrical and grounding for the unit must
also conform to the current Canadian Electrical Code
Part 1, CSA Standard C22.1
15. Field wiring to the appliance must meet or exceed
the specifications for type T wire and must withstand a
minimum of 180°F temperature rise.
16. Service access must be provided for the service and
replacement of the blower motor, air filter etc. The use
of CFM Corporation mantels designed for this product
is recommended.

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W
U
V
L
X
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1195
DVHVAC
Specs
8/20/03 djt
Fireplace Dimensions
Fig. 2 Fireplace specifications.
Ref. DVHVAC36 Ref. DVHVAC36
A 36" (914 mm) N 9⁵⁄₈" (245 mm)
B 34¹⁄₄" (870 mm) O 6⁷⁄₈" (175 mm)
C 21" (533 mm) P 2⁹⁄₃₂" (58 mm)
D 33" (838 mm) Q 2" (51 mm)
E 63⁵¹⁄₆₄" (1621 mm) R 3¹³⁄₁₆" (97 mm)
F 70" (1780 mm) S 4" (102 mm)
G 16⁵⁄₃₂" (410 mm) T 1/2" (13 mm)
H 21⁵⁄₃₂" (537 mm) U 18" (457 mm)
I 38³⁄₁₆" (970 mm) V 16⁷⁄₂₁" (412 mm)
J 28¹⁵⁄₁₆" (735 mm) W 83¹⁄₈" (2111 mm)
K 33¹⁄₂" (851 mm) X 5³⁄₈" (136 mm)
L 18³⁄₁₆" (462 mm) Y 58³⁄₄" (1493 mm)
M 13²¹⁄₃₂" (347 mm) Z 41⁹⁄₁₆" (1056 mm)

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DVHVAC36
10001195
A) Flat on wall B) Cross corner C) **Island
D) *Room divider E) *Flat on wall corner F) Chase installation
Y) 6" minimum
NOTE (Fig. 1):
** Island (C) and Room Divider (D) installation is possible as
long as the horizontal portion of the vent system (X) does not
exceed 20' (6m). See details in Venting Section.
* When you install your CFM Corporation fireplace in (D) Room
divider or (E) Flat on wall corner positions (Y), a minimum of 6"
(153mm) clearance must be maintained from the perpendicular
wall and the front of the fireplace.
Locating Your Gas Fireplace
Y D
F
X
X
AE B
C
Y
LU584-3
locating unit
DVHVAC
8/19/03
LU584-3
Fig. 1 Locate gas fireplace.
Clearance to Combustibles
Back .............................................................. 0" (0 mm)
Side ............................................................... 0" (0 mm)
Floor .............................................................. 0" (0 mm)
Top ................................................................ 0" (0 mm)
Flue ...................................................... 2" (51 mm) Top
..............................................1" (25 mm) Sides/Bottom
Unit Assembly
The DVHVAC36 is shipped in three cartons. The first
carton contains the fireplace cabinet. The second car-
ton contains the air circulating blower section and the
third carton contains the coil cabinet. Unpack all three
sections before following the assembly instructions:
1. Place the air circulating blower section onto the left
side of the fireplace cabinet. (Fig. 3)
2. Ensure the damper plate below the blower assembly
works freely without binding. Rotate it downwards
and ensure that it returns to a closed position.
3. Secure air circulating blower section to fireplace
cabinet using 8 of the #8 screws provided.
4. Remove the access panel on the front of the air cir-
culating blower section by removing the #10-24 nuts.
Remove the jack plug from the air circulating blower
motor by gently depressing tab.
5. Attach the metal conduit from the fireplace cabinet
to the 7/8" diameter hole in the side of the air cir-
culating blower section using the nut provided. Do
not feed the two yellow wires which are outside the
conduit through the hole. Insert the terminal on the
white wire (common) into position 1 on the jack plug.
Insert the terminal on the black wire (cooling speed)
into position 2 on the jack plug. Insert the terminal on
the red wire (heating speed), into position 3, 4 or 5
on the jack plug. If unsure, select position 4 on the
jack plug for heating speed and adjust if necessary.
If desired the speed selections can be changed later.
Refer to Figure 8 Wiring Diagram.
WARNING: Ensure that all three wires are properly
inserted into jack plug, even if an optional air condi-
tioner is not to be used.
6. Reinstall jack plug into motor and replace access
panel.
7. Place the coil cabinet section onto the right side of
the fireplace cabinet so the access panel faces the
front of the unit. (Fig. 3) Remove the access panel
and secure the coil cabinet to the fireplace cabinet
using 8 of the #8 screws provided.
8. Connect the 1/4" quick connect terminals of the two
yellow wires from the fireplace cabinet to the high
limit safety control located on the top of the coil cabi-
net.
FP1399
DVHVAC
fireplace assy
8/20/03
Blower Section
Coil Cabinet
Fireplace Cabinet
FP1399
Fig. 3 DVHVAC36 unit assembly.

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10001195
Framing and Finishing
1. Choose fireplace location.
2. Place fireplace into position and secure to floor with
1¹⁄₂" screws, or nails. The holes to secure the fire-
place to the floor are located just behind the access
door grille on the left and right hand side of the
fireplace.
FP1023
side nailing flange
1/27/00 djt
C
A
B
Adjustable Drywall Strip
(Nailing Flange)
Screw Drywall
Position Depth
A 1/2" (13 mm)
B 5/8" (16 mm)
C 3/4" (19 mm)
Adjustable
1/2", 5/8" &
3/4" Spacing
FP1023
Fig. 4 Adjustable drywall strip (nailing flange).
A
B
D
C
FP1400
DVHVAC
mantel setup
8/03
Mantel
Top Louvre Opening
Front Glass
Side View
Optional Hearth
Gas Knock-Out
Electrical
Knock-
Out
Electrical Cable
Knock-Out
FP1400
Mantel Chart
Ref. From Top Ref. Depth
Louvre (Min.) (Max.)
A 15¹⁄₅" (394 mm) C 7" (178 mm)
B 48" (1219 mm) D any
Mantel Leg Chart
From Fireplace Depth
Side (Min.) (Max.)
7¹⁄₂" (191 mm) 1³⁄₄" (44 mm)
Fig. 5 Combustible mantel installation.
3. Frame in fireplace. It is important to allow for finished
face when setting the depth of the frame.
4. Attach fireplace to frame using adjustable frame
drywall strips (located behind access door for ship-
ping). Preset depth to suit facing material (adjustable
to 1/2", 5/8" or 3/4" depths). (Fig. 4)
5. Screw through slotted holes in drywall strip and then
screw into pre-drilled holes on fireplace side. Meas-
ure from face of fireplace to face of drywall strip to
determine final depth. (Fig. 4)
Supply Air Duct Systems
The DVHVAC36 fireplace has three 6" (152 mm) diam-
eter supply air outlets. Duct runs of up to 65 equivalent
feet (19.8 m) using 6" (152 mm) round duct (or equiva-
lent), are permissible. Duct runs of up to 40 equivalent
feet (12.2 m) are permitted using 5" (127 mm) round
duct (or equivalent). Runs of up to 30 equivalent feet
(9 m) are permitted when using 4" (102 mm) round duct
(or equivalent). In all cases, size and install the supply
air system using industry approved standards which
result in a quiet and low static system.
Return Air Plenum
The DVHVAC36 is equipped with a 16" x 16" (256 x
256 mm) return air duct connection. Size and install the
return air system using industry approved standards
that result in a quiet and low static system.
Air Conditioning
The coil cabinet has been sized to fit most major brands
of evaporator coil. (Fig. 6) The brackets supplied inside
the coil cabinet represent the lowest height above the
fireplace cabinet that the coil may be mounted. For best
results, it is recommended that low air restriction types

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DVHVAC36
10001195
of coils be used with this product. When using 4" or 5"
(102 or 127 mm) diameter duct work, the maximum air
conditioning system size should be limited to 1.5 tons
(18,000 BtuH). When using 6" (152 mm) diameter duct,
air conditioners of up to 2 tons (24,000 BtuH) may be
used. Total static pressure of the system above the out-
let from the fireplace cabinet should not exceed 0.40"
w.c. with the air circulating blower on high speed, when
using the maximum air conditioning capacity.
Two rails come factory mounted in the coil cabinet.
These represent the minimum clearance between the
evaporator coil and the fireplace cabinet top. Do not
mount an evaporator coil below the level of the rails.
Final Finishing
Noncombustible materials such as brick and tile can
be extended over the front face of the unit (Do not
cover louvres or glass door). If a trim kit is going to
be installed, brick and tile will have to be installed flush
with the side of this appliance.
Hearth
A hearth is not mandatory, however it is recommended
for aesthetic purposes. We recommend a noncombus-
tible hearth which projects out 12" (305 mm) or more in
front of this unit.
Cold climate installation recommendation:
When installing this unit against a non-
insulated exterior wall or chase, it is
mandatory the outer walls be insulated to
conform to applicable insulation codes.
DVHVAC36
Certified to
ANSI Z21.88-2005 / CSA 2.33-2005
Vented Gas Fireplace Heaters
Do not use this fireplace if any part of it
has been under water. Immediately call a
qualified service technician to inspect the
fireplace and replace any part of the control
which has been under water.
Gas Inlet & Manifold Pressures
Supply Pressure Natural LP (Propane)
Minimum 5.5" w.c. 11.0" w.c.
Maximum 14.0" w.c. 14.0" w.c.
Manifold Pressure 3.5" w.c. 10.0" w.c.
A
B
C
D
E
FP1401
DVHVAC
coil
8/03
Rails
FP1401
Ref. Dimension
A 21" (534 mm)
B 17⁷⁄₁₇" (443 mm)
C 3⁷⁄₁₆" (88 mm)
D 20⁷⁄₁₆" (519 mm)
E 8¹⁄₂" (217 mm)
Fig. 6 Coil cabinet dimensions.
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration for elevations up to
4,500 feet (1,370 m) above sea level.
For elevations above 4,500 feet (1,370 m) in USA,
installations must be in accordance with the
current ANSI Z223.1/NFPA 54 and/or local codes
having jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370 m).
Gas Specifications
Max. Min.
Input Input
Model Fuel Gas Control BTUH BTUH
DVHVAC36RN Natural Gas Millivolt HI/LO 40,000 25,000
DVHVAC36RP Propane Gas Millivolt HI/LO 40,000 25,000
Gas Line Installation
When purging gas line, the front glass
must be removed.
The gas pipeline can be brought in through the right
side or left side of the appliance as well as the bottom.
Knockouts are provided at convenient locations to allow
for the gas pipe installation and testing of any gas con-
nection.
The gas line connection can be made with properly
tinned 3/8" copper tubing, 3/8" rigid pipe or an approved
flex connector.
Always check for gas leaks with a mild
soap and water solution. Do not use an
open flame for leak testing.
Unit: B12AC0, B12BC0

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DVHVAC36
10001195
FP297A
INSTA VENT FREE
UVHB26 GAS SUPPLY
7/1/98
1/2" Gas Supply
FP297a
Fig. 7 Typical gas supply installation.
1/2" NPT x 1/2" Flare
Shut-off Valve
3/8" Flex Line
(From Valve)
Electrical Specifications
120V AC
60Hz
Less than 12 Amps
1/3 Horsepower
The gas control is equipped with a captured screw type
pressure test point, therefore it is not necessary to pro-
vide a 1/8" test point up stream of the control.
When using copper or flex connector use only approved
fittings. When using black iron pipe always provide a
union so the gas line can be easily disconnected for
burner or fan servicing. (Fig. 7) Refer to gas specifica-
tions for pressure details and ratings.
The fireplace valve must not be subjected to any test
pressures exceeding 1/2 psi. Isolate or disconnect this
or any other gas appliance control from the gas line
when pressure testing.

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DVHVAC36
10001195
Electrical
Refer to Figure 8 for field wiring.
1. Select fuse and wire size according to rating plate
amperage.
2. Install a separate fused disconnect switch near the
unit for service purposes.
3. Knockouts are provided on both sides of cabinet for
electrical wiring.
4. Install room thermostat (24 volt) according to
instructions provided with thermostat, using 18
gauge wire or larger.
5. Electrically ground the unit in accordance with
local codes, or in the absence of local codes in
accordance with the Canadian Electrical Code, Part
1 (CSA Standard C22.1) in Canada, or with the
National Electric Code (ANSI/NFPA No. 70) in the
United States.
6. The circuit board is equipped with two (2) accessory
terminals. The terminal marked "Air Cleaner" and
"Humidifier" are rated for 120V 0.5 Amps and are
energized with the air circulating blower. Connect the
neutral leg of the accessory to the 120V neutral wire.
Fig. 8 DVHVAC36 wiring diagram.
FP1413
123456
COMMON
NOT USED
MED-HI
MED-LO
LOW
NOT USED
ACB
FLAME
ADJUST
ORANGE/BLACK
BROWN
ORANGE
HUMIDIFIER
ACB HEAT
ACB COOL
AIR CLEANER
XFORMER 1
2 RED
3 BLACK
1 WHITE
110 VAC HOT
110 VAC RTN
110 VAC HOT
CLEAN RTN
HUMID RTN 10 VAC RTN
ACB RTN X FORMER 2
SOLENOID 2
SOLENOID 1
9 YELLOW
6 BLACK
7 WHITE
8 BLUE
8 BLUE
35
14
THERMOSTAT
11 GREEN
10 BLUE
R
W1
G
Y
GND
CHASSIS GND
24 VAC RTN
24 VAC HOT
TH TP-PILE +
TH-PILE +
THERMOPILE
GAS VALVE
TP/TH TP TH
EMERGENCY
HEAT
SWITCH
14 YELLOW
15 BLUE
13 BLUE
12 YELLOW
RED
WHITE
L1
L2
TP/TH
TH
LIMIT
16 YELLOW
17 GREEN
TP
4 RED
5 WHITE
18 GRAY
19 YELLOW
20 GREEN
GREEN
FP1413
DVHVAC36
wiring diagram
11/03
This model 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 com-
bustible materials is 1" (25 mm).
• Venting terminals shall not be recessed into a wall or
siding.
• Horizontal venting must be installed on a level plane
without an inclining or declining slope.
There must not be any obstruction such as bushes,
garden sheds, fences, decks or utility buildings within
General Venting
24" (610 mm) from the front of the termination hood.
Do not locate termination hood where excessive snow
or ice build up may occur. Be sure to check vent termi-
nation area after snow falls, and clear to prevent ac-
cidental 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 ob-
serving the minimum clearances as shown on Page 10.
*Check with local codes or in absence of same with
CSA B149.1 Installation Codes (1991) for Canada or for
U.S.A. Installations follow the current National Fuel Gas
Code, ANSI Z223.1/NFPA 54.

10
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10001195
V
V
V
V
V
V
V
X
X
X
D
E
B
B
B
C
B
M
B
A
J
K
F
L
VENT TERMINATION AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED
H
I


Operable
Operable Fixed
Closed
V
B
CFM145a
DV Termin Location
5/01/01 Rev. 12/05/01
sta
INSIDE
CORNER DETAIL
V
A
G
N
N
CFM145a
General Venting Information - Termination Location
A = Clearance above grade, veranda, porch, 12” (30cm) 12” (30cm)
deck, or balcony
B = Clearance to window or door that may be 6” (15cm) for appliances 6” (15cm) for appliances
opened < 10,000Btuh (3kW), 12” (30cm) < 10,000 Btuh (3kW), 9”
for appliances > 10,000 Btuh (3kW) and (23cm) for appliances > 10,000
< 100,000 Btuh (30kW), 36” (91cm) Btuh (3kW) and < 50,000 Btuh
for appliances > 100,000 Btuh (30kW) (15kW), 12” (30cm) for
appliances > 50,000 Btuh (15kW)
C = Clearance to permanently closed window 12” (305mm) recommended to 12” (305mm) recommended to
prevent window condensation prevent window condensation
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal 18” (458mm) 18” (458mm)
distance of 2 feet (610mm) from the center
line of the terminal
E = Clearance to unventilated soffit 12” (305mm) 12” (305mm)
F = Clearance to outside corner see next page see next page
G = Clearance to inside corner (see next page) see next page see next page
H = Clearance to each inside of center line 3’ (91cm) within a height of 15’ 3’ (91cm) within a height of 15’
extended above meter/regulator assembly above the meter/regulator assembly above the meter/regulator assy
I = Clearance to service regulator vent outlet 3’ (91cm) 3’ (91cm)
J = Clearance to nonmechanical air supply inlet 6” (15cm) for appliances < 10,000 6” (15cm) for appliances
to building or the combustion air inlet to any Btuh (3kW), 12” (30cm) for < 10,000 Btuh (3kW), 9”
other appliances appliances > 10,000 Btuh (3kW) and < (23cm) for appliances > 10,000
100,000 Btuh (30kW), 36” (91cm) Btuh (3kW) and < 50,000 Btuh
for appliances > 100,000 Btuh (30kW) (15kW), 12” (30cm) for
appliances > 50,000 Btuh (15kW)
K = Clearance to a mechanical air supply inlet 6’ (1.83m) 3’ (91cm) above if within 10’
(3m) horizontally
L = Clearance above paved sidewalk or paved 7’ (2.13m)† 7’ (2.13m)†
driveway located on public property
M = Clearance under veranda, porch, deck or 12” (30cm)‡ 12” (30cm)‡
balcony
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).
1 In accordance with the current CSA-B149 Installation Codes
2 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Codes
† A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves
both dwellings
‡ only permitted if veranda, porch, deck or balcony is fully open on a minimum 2 sides beneath the floor:
NOTE: 1. Local codes or regulations may require different clearances.
2. The special venting system used on Direct Vent fireplaces are certified as part of the appliance, with clearances tested and app-
roved by the listing agency.
3. CFM Corporation assumes no responsibility for the improper performance of the appliance when the venting system does not
meet these requirements.
Canadian Installations1 US Installations2
Fig. 9 Termination clearances.

11
DVHVAC36
10001195
Fig. 10 Termination clearances.
General Information Assembling Vent Pipes
Canadian Installations:
Venting system must be installed in accordance with the
current CSA-B149.1 installation code.
USA Installations:
The venting system must conform with local codes and/
or the current National Fuel Gas code ANSI Z223.1/
NFPA 54.
Only venting components manufactured by CFM Corpo-
ration can be used in Direct Vent systems.
Twist Lock Pipes
When using CFM Corporation 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
telescopic 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 pipe 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 (3) sheet metal screws,
however this is not mandatory with twist lock pipe. (Fig.
11)
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.
TWL100
Twist Lock Pipe
3/12/99 djt
Male End Female End
Screw Holes TWL100
Fig. 11 Twist-lock pipe joints.
Outside Corner
Inside Corner
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
G =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
F =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
G
Balcony -
with no side wall
M =
Combustible &
Noncombustible
12" (305 mm)
M
Balcony -
with perpendicular side wall
M = 24" (610 mm)
P = 20” (508 mm)
M
F
Alcove Applications*
C
D
C
E
V
V
Combustible &
Noncombustible
V
V
V
E = Min. 6” (152 mm) for
non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls
O = 8’ (2.4 m) Min.
O
P
584-15
No.
of Caps DMin. CMax.
1 3’ (.9 mm) 2 x DActual
2 6’ (1.8 m) 1 x DActual
3 9’ (2.7 m) 2/3 x DActual
4 12’ (3.7 m) 1/2 x DActual
DMin. = # of Termination caps x 3
CMax. = (2 / # termination caps) x DActual
*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions
specified for vinyl or non-vinyl siding and soffits. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All
mechanical air intakes within 10’ (1 m) of a termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All
gravity air intakes within 3’ (914 mm) of a termination cap must be a minimum of 1’ (305 mm) below the termination cap.

12
DVHVAC36
10001195
How to Use the Vent Graph
1. Determine the height of the center of the horizontal
vent pipe exiting through the outer wall. Using this
dimension on the Sidewall Vent Graph (Fig. 12),
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 fire-
place in accordance with same. (Refer to examples
Fig. 12)
EXAMPLE A:
If the vertical dimension from the floor of the unit is 11'
(3.4m) 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 unit is 7'
(2m), the horizontal run to the face of the outer wall
must not exceed 8¹⁄₂' (2.6 m).
Corner Installation
When the DVHVAC36 unit is installed in a corner,
Figure 1, Option B, the vent configuration must fol-
low the Vertical Sidewall Installation Instructions.
Rear Wall Venting Applications
This appliance may be vented directly to a termination
located on the rear wall behind the appliance.
NOTE: It is not necessary to seal the vent pipe joints for
any rear vent applications.
• Only CFM Corporation venting components are
approved to be used in these applications. Refer to
“Venting Components” listed for different installation
requirements.
• The maximum horizontal distance between the rear
of the appliance and the outside face of the rear wall
is 20” (508 mm). (Fig. 13)
• Minimum clearances between vent pipe and com-
bustible materials are as follows:
Top - 2” (51 mm)
Sides - 1” (25 mm)
Bottom - 1” (25 mm)
Rear Wall Installations
STEP 1
Locate vent opening on wall. To locate hole center, refer
to appropriate fireplace dimensions on Page 4.
Combustible Walls (Fig. 14): Cut a 10³⁄₈" x 9³⁄₈" (265 x
240 mm) hole through the exterior wall and frame as
shown.
Noncombustible Walls (Fig. 14): Hole opening must be
7¹⁄₂" (191 mm) in diameter.
STEP 2
Measure wall thickness and cut adjustable zero clear-
ance sleeve parts to proper length (MAXIMUM 12" /
305 mm). Adjust sleeve to maximum (10³⁄₈" x 9³⁄₈" / 265
x 240 mm) and attach to firestop with #8 sheet metal
screws (supplied). (Fig. 15) Install firestop assembly.
20"
(508mm)
FP1403
DVHVAC
rear vent app
8/03
FP1403
Fig. 13 Rear vent application.
Vertical dimension from the floor of the unit
to the center of the horizontal vent pipe
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
eg: A
eg: B
CFM102
DV Graphic
9/28/00 sta
Sidewall Venting Graph
(Dimensions in Feet)
Horizontal dimension from the outside face of the wall
to the center of the fireplace vent flange
Fig. 12 Sidewall venting graph. (Dimensions in feet)

13
DVHVAC36
10001195
VO584-100
Vent Opening
2/99 djt
Vent Opening for Combustible Wall
9³⁄₈"
(240 mm)
10³⁄₈"
(265 mm)
Fireplace
Hearth
Framing
Detail
Vent Opening for Noncombustible Wall
7¹⁄₂"
(190 mm)
VO584-100
Fig. 14 Locate vent opening on wall.
ZCS101
Zero Clearance Sleeve
3/11/99 djt
Max. Length
12" (305 mm)
Adjustable
Zero Clearance
Sleeve
#8 Screws
(2)
#8 Screws (2)
#8
Screws
(2)
Firestop
Adjustable Zero Clearance Sleeve ZCS101
Fig. 15 Adjustable zero clearance sleeve.
STEP 3
Measure from fireplace collar face to face of outside
wall (add 2" (51 mm) for vent pipe overlap). Mark pipes
and cut to length. It is very important that the two pipes
are flush with the outside wall once the fireplace is in its
final location. (Fig. 16)
FP1404
DVHVAC
vent pipe
8/03
Zero Clearance Sleeve
Firestop
FP1404
Fig. 16 Firestop and zero clearance sleeve in place.
STEP 4
Slip 4" (102 mm) and 7" (178 mm) pipes onto respec-
tive flue collars. Make sure to fix to the fireplace collar
the 4" pipe with three (3) screws before fixing the 7"
pipe on the 7" collar. Both pipes must be on a level
plane. (Fig. 17)
STEP 5
Guide the vent termination 4" collar into the 4" pipe then
the 7" collar into the 7" pipe. Do not force the venting
into position. If the pipes do not line up with the termina-
tion collars, disassemble elbows or pipes and reattach
to the fireplace collar.
STEP 6
Recheck the fireplace to make sure it is levelled, prop-
erly positioned and nailed or screwed to the floor.
If applied, the fireplace adjustable frame drywall strips
(nailing flanges) should be fastened. Refer to Framing
and Finishing.
Vertical Sidewall Applications
Since it is very important that the vent-
ing system maintain its balance between
the combustion air intake and the flue
gas exhaust, certain limitations as to vent
configurations apply and must be strictly
adhered to.
The graph showing the relationship between vertical
and horizontal side wall venting will help to determine
the various vent lengths allowable. (Fig. 12)
Minimum clearance between vent pipes
and combustible materials is 1" (25 mm)
on top, bottom and sides unless otherwise
noted.
When vent termination exits through foundation less
than 20" (508 mm) below siding outcrop, the vent pipe
must flush up with the siding. A 7DVSS must also be
used.
FP1005
Side View Vent Termination
1/25/00 djt
Finished
Wall
Vent Termi-
nation
FP1005
Fig. 17 Side view of final unit location.

14
DVHVAC36
10001195
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.
For some installations, it may be desirable to have
some amount of the horizontal vent run immediately
after the fireplace. A vertical rise must be used but can
be located anywhere in the vent system, to meet the
parameters identified in the venting graph.
• The maximum horizontal vent run is 20' (6 m) when
the vertical vent rise is 7¹⁄₂' (2.3 m). (Fig. 18)
1
2
3
4
1 + 2 + 3 + 4 = 270o
CFM132
Insert Rear Vent Sidewall
2/26/01 sta
Sample:
Elbow 1 = 90°
Elbow 2 = 45°
Elbow 3 = 45°
Elbow 4 = 90°
Total angular variation = 270°
CFM132
Fig. 21 Maximum number of elbows.
B
7'
(2.1m)
V584-201
Horizontal Run
2/99 djt
A
10'
(3m)
7' 6"
(2.3m)
CFM147
Fig. 20 Maximum vent run with elbows.
A + B = 17' (5.2m) Max.
• The maximum number of 90° elbows per side wall
installation is three (3).
• The maximum number of 45° elbows permitted per
side wall installation is two (2). These elbows can be
installed in either the vertical or horizontal run.
• When one (1) 90° elbow is installed directly onto
another off the back of the fireplace the maximum
horizontal vent length is 36" (914 mm). (Fig. 19)
• For each 45° elbow installed in the horizontal run
(while maintaining a constant horizontal plane), the
length of the horizontal run MUST be reduced by 18"
(457 mm). This does not apply if the 45° elbows are
installed on the vertical part of the vent system.
• If a 90° 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 90° elbows are used to
increase or redirect a vertical rise.
CFM141
2/2/01 sta
Maximum
20 ft. (6.1m)
7.5'
(2.3m)
7TDVRT90
Elbow
15 ft.
(4.6m)
48"
(1.2m)
12"
(305mm)
Vertical Dimen-
sion 7¹⁄₂' (2.3m)
Minimum when
Horizontal Run is
20' (6m)
CFM141
Fig. 18 Maximum number of 90° elbows is three.
Example: According to the vent chart the maximum
horizontal vent length is 20' (6 m) when the vertical
height is 7.5' (2.3 m) from fireplace base height. If
one (1) 90° elbow is required in the horizontal vent, it
must be reduced to 17' (5.2 m).
• The maximum number of elbow degrees in a sys-
tem is 270°. (This does not include transition elbow
from rear vent to vertical vent.) (Fig. 21)
Maximum
3' (914mm)
7TDVRT90
Elbow
CFM142
Venting
2/2/01 sta
CFM142
Fig. 19 Maximum horizontal vent run with 90° elbows directly
off back of unit.

15
DVHVAC36
10001195
• IMPORTANT • Minimum clearance between vent
pipes and combustible materials is 1" (25mm) on bot-
tom, sides and top.
A vent starter kit plus a transition elbow
must be used in Vertical Sidewall Installa-
tions. The 4" pipe must be centered inside
the 7" pipe coming off the transition elbow.
Canadian & USA Installations:
The venting system must conform with local codes, or
in the absence of local codes, with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 - latest edition, or
CSA B149.1 Installation Code.
Only CFM Corporation venting components specifically
approved and labelled for this fireplace may be used.
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 noncombustible, cut opening to size. (Fig. 22)
For combustible walls first frame in opening.
Combustible Walls (Fig. 22): Cut a 9³⁄₈" x 9³⁄₈" (240 x
240 mm) hole through the exterior wall and frame.
Noncombustible Walls (Fig. 22): Hole opening must
be 7¹⁄₂" (190 mm) in diameter.
VO584-100
Vent Opening
2/99 djt
Vent Opening for Combustible Wall
9³⁄₈"
(240 mm)
9³⁄₈"
(240 mm)
Fireplace
Hearth
Framing
Detail
Vent Opening for Noncombustible Wall
7¹⁄₂"
(190 mm)
VO584-100
Fig. 22 Locate vent opening on wall.
STEP 2
Measure wall thickness and cut adjustable zero clear-
ance sleeve parts to proper length (MAXIMUM 12" /
305mm). (Fig. 23) Adjust sleeve to minimum (9³⁄₈" x 9³⁄₈"
/ 240 x 240 mm) and attach to firestop with #8 sheet
metal screws (supplied). Assemble sleeve and attach
to firestop with #8 sheet metal screws (supplied). Install
firestop assembly.
Zero clearance sleeve is only required for
combustible walls.
ZCS101
Zero Clearance Sleeve
3/11/99 djt
Max. Length
12" (305 mm)
Adjustable
Zero Clearance
Sleeve
#8 Screws
(2)
#8 Screws (2)
#8
Screws
(2)
Firestop
Adjustable Zero Clearance Sleeve ZCS101
Fig. 23 Adjustable zero clearance sleeve.
STEP 3
Apply a bead of high temperature sealant to the inner
and outer flue collars of the fireplace and using ap-
propriate venting component(s) attach to fireplace with
three (3) screws. (Fig. 24) Follow with the installation
of the inner and outer elbow. Again, secure joints with
three (3) sheet metal screws. Wipe off any excess high
temperature sealant.


CFM143
2/2/01 sta
CFM143
Ensure Pipes
are Concentric
Bead of Seal-
ant
(If Necessary)
Fig. 24 Apply sealant to inner and outer pipe.

16
DVHVAC36
10001195
STEP 4
Measure the horizontal length requirement including a
2" (51 mm) overlap, i.e. from the elbow to the outside
wall finish plus 2", or the distance required if installing a
second 90° elbow. (Fig. 25)
STEP 5
Use appropriate length of pipe section - telescopic or
fixed - and install the horizontal vent sections. The 20"
(508 mm) section of pipe which goes through the wall is
packaged with the 7TDVSK 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 the fireplace.
CFM137
Rear Vent length
2/26/01 sta
X
High Temperature
Sealant
CFM137
Fig. 26 Apply high temperature sealant.
STEP 6
Apply high temperature sealant to 4" (102 mm) and 7"
(178 mm) collars or the termination 1" (25 mm) away
from the end. Guide the vent termination's 4" and 7" col-
lars into their respective vent pipes. Double check that
the vent pipes overlap the collars by 2" (51 mm). Secure
the termination to the wall with screws provided and
caulk around the wall plate to weatherproof. (Fig. 27)
CFM138
4", 7" collar
2/26/01 sta
XX
CFM138
Fig. 27 Horizontal length requirement.
STEP 7
Support the horizontal pipes every 36" (914 mm) with
metal pipe straps. Make sure the horizontal vent pipe is
installed on a level horizontal plane.
STEP 8
Re-check the fireplace to make sure that it is levelled,
properly positioned and nailed or screwed to the floor.
If applied, the fireplace's adjustable frame drywall strips
(nailing flanges) should be fastened. Refer to "Framing
& Finishing" section.
Below Grade Installation
When it is not possible to meet the required vent ter-
minal clearances of 12" (305 mm) above grade level, a
snorkel termination, #7TDVSNORK is required. It allows
installation depth of down to 7" (178 mm) below grade
level. The 7" is measured from the center of the hori-
zontal vent pipe as it penetrates through the wall.
Ensure sidewall venting clearances are observed.
If venting system is installed below ground,
a window well with adequate and proper
drainage to be installed around the termi-
nation area is recommended.
The maximum horizontal run with 24" (610 mm)
vertical rise is 36" (914 mm) from the back of the
fireplace to the face of the exterior wall. Refer to the
vent graph on Page 12 for extended horizontal run if
the vertical rise exceeds 24" (610 mm).
CFM136
Rear Vent horizontal length
2/26/01 sta
X
CFM136
Fig. 25 Measure horizontal length including 2" overlap.
Always install
horizontal vent-
ing on a level
plane.

17
DVHVAC36
10001195
1. Establish vent hole through the wall. (Fig. 22)
2. Remove soil to a depth of approximately 16" (406 mm)
below base of snorkel. Install window well (not sup-
plied). Refill hole with 12" (305 mm) of coarse gravel
leaving a clearance of approximately 4" (102 mm)
below snorkel. (Fig. 28)
3. Install vent system. Refer to Page 12, Steps 2
through 5.
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 into the vent pipe and secure to the wall.
7. Level the soil to maintain a 4" (102 mm) clearance
below snorkel. (Fig. 28)
Do not backfill around snorkel. A clearance
of at least 4" (102 mm) must be maintained
below the snorkel.
BG401
Snorkel
2/10/99 djt
Snorkel
Wall Screws
Sheet Metal
Screws
BG401
Foudation Recess
Recess Bracket
Watertight Seal
Around Pipe
Fig. 29 Snorkel installation, recessed foundation.
Vertical Through-the-Roof Applications
This gas fireplace has been approved for:
• Vertical installations up to 40' (12 m) in height. Up to
10' (3 m) horizontal vent run can be installed within
the vent system using a maximum of three (3) 90°
elbows.
CFM148
Minimum 8'
(2.4m)/ Maxi-
mum 40' (12m)
Vertical Rise
Maximum
10' (3m)
Pipe Straps Every 3'
(914mm)
CFM148
Fig. 30 Support straps for horizontal runs.
• Up to two (2) 45° elbows may be used within the
horizontal run. For each 45° elbow used on the hori-
zontal level, the maximum horizontal length must be
reduced by 18" (457 mm).
Example: Maximum horizontal length:
0 x 45° elbows = 10' (3 m)
1 x 45° elbows = 8¹⁄₂' (2.6 m)
2 x 45° elbows = 7' (2.1 m)
• A minimum of an 8' (2.4 m) vertical rise.
• Two (2) sets of 45° elbows offset within these verti-
cal installations. From 0 to a maximum of 8' (2.4m)
of vent pipe can be used between elbows. (Fig. 30)
• 7DVCS must be used to support offsets. (Fig. 31)
This application will require that you first determine
the roof pitch and use the appropriate 7DVSKV (A, B
or F). Refer to Venting Components on Page 21.
Vertical Through-the-Roof Installation
1. Locate your fireplace.
2. Plumb to center of the 4" flue collar from ceiling
above and mark position.
3. Cut opening equal to 9³⁄₈" x 9³⁄₈" (240 x 240 mm).
4. Proceed to plumb for additional openings through
the roof. In all cases, the opening must provide a
minimum of 1" clearance to the vent pipe, i.e., the
hole must be at least 9³⁄₈" x 9³⁄₈" (240 x 240 mm).
BG400
Below grade installation
2/10/99 djt
10/19/99 added standoffs
24" (608mm)
Minimum*
Zero Clearance
Sleeve
Firestop
7" Pipe
7TDVSNORK
(Snorkel)
4" (102mm)
Clearance
Min.
Window
Well
Gravel
Drain
Foundation Wall
Screws
BG400
Fig. 28 Below grade installation.
*A minimum of 24" (608mm)
vertical pipe must be installed
when using the 7TDVSNORK
Kit.

18
DVHVAC36
10001195
FP1021
Typical vertical
through the roof
application
3/26/00 djt
Max 8'
(2.4 m)
45°
45°
Max 8'
(2.4 m)
40'
(12 m)
Typical Ceil-
ing Support
Application
Typcal Roof
Support Ap-
plication
Fig. 31 Typical vertical roof application.
5. Place fireplace into position.
6. Place firestop(s) #7DVFS or attic insulation shield
#7DVAIS into position and secure. (Fig. 32)
7. Install roof support (Fig. 33) and roof flashing, mak-
ing sure upper flange is below the shingles. (Fig. 33)
8. Install appropriate pipe sections until the venting is
above the flashing. (Fig. 33)
9. Install storm collar and seal around pipe.
10. Add additional vent lengths for proper height. (Fig.
34)
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 spacers 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. (Fig. 32)
The enlarged ends of the vent section al-
ways face downward. (Fig. 33)
TWL101a
Twist Lock Pipe
2/8/99 djt
3 #5 Sheet Metal
Screws per Joint
Sealant
Storm Collar
TWL101a
Fig. 33 Roof flashing.
CFM100
Firestop-Vertical
09/20/00
11"
11"
Attic Insulation
Shield
Joist
Ceiling In-
stallation
Joist
Firestop Spacer
Upper Floor
Nails (4) CFM100
Fig. 32 Place firestop spacer(s) and secure.
FP1022
Typical Straight Up Installation
1/26/00 djt
40'
(12.m)
2'
(610mm)
Min.
Storm Collar
Vent Termination
Roof Flashing
Roof Support
Joists
Attic Insulation
Shield
Attic Insula-
tion
Joists
FP1022
Fig. 34 Typical straight-up installation.

19
DVHVAC36
10001195
Twist Lock Venting Components
7TDVRVT - Through the Wall Rear Vent Termination
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
Snorkel Termination - 7TDVSNORK
for Below Grade Installation
45o Elbow
7TDV45 for Rear Vent to Vertical Vent
or Vertical/Horizontal Offsets
90o Transition Elbow
7TDVRT90 for Rear Vent to Vertical Vent
90° Elbow
7TDV90 Vertical/Horizontal Offset
Telescopic vent sections
7TDVP1218 - 12" to 18" adjustable length
7TDVP3566 - 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
584A
venting components
rear vent term
4/6/99 djt
584B
Vent components
Starter Kit
2/25/99 djt
584G
Venting Components
Firestop spacer
2/25/99 djt
584H
Venting components
attic insulation shield
2/25/99 djt
584I
vent components
offset support
2/25/99 djt
584C
Vent components
45 degree elbow
2/25/99 djt
10/20/99 twistlock
584D
Vent Components
90 degree elbow
2/25/99 djt
10/20/99 twist lock
584E
Venting Components
Telescope vent
2/25/99 djt
10/20/99 twist lock
584F
Venting Components
Pipe sections
2/25/99 djt
10/20/99 twist lock

20
DVHVAC36
10001195
Operating Instructions
General Glass Information
Only glass approved by Vermont Casting,
Majestic Products should be used on this
fireplace.
• The use of non-approved replacement glass will void
all product warranties.
• Care must be taken to avoid breakage of the glass.
• Do not operate appliance with glass front
removed, cracked or broken.
• Replacement of the glass (complete with gasket)
is available through your Majestic Fireplaces
dealer and should be done by a licensed
qualified service person.
Louvre Removal
To remove top louvre,
pull louvre up and
then lift out. (Fig. 35)
1.
2.
FP1227
Louvre removal
11/02
Top Lou-
vre
Assembly
Window
Frame As-
sembly
FP1227
Fig. 35 Remove top louvre as-
sembly.
Window Frame Assembly Removal
1. Shut off gas.
2. Let the fireplace cool if it has been operating.
3. Remove top louvre assembly. (See Louvre Removal)
4. Open the lower louvre assembly.
5. Release the two clamps at the bottom of the window
frame by pulling down on the clamp handles. (Fig.
36)
6. Tilt window frame assembly out slightly at the bot-
tom, lift the frame up and away from the fireplace.
7. To replace window frame assembly, reverse this
procedure.
Glass Cleaning
It will be necessary to clean the glass periodically.
During start-up, condensation, which is normal, forms
on the inside of the glass and 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 the glass
FP1405
DVHVAC
remove glass frame
8/03
Clamps
Glass
Frame
Fireplace
Front
Window
Frame
Assem-
bly
Window
Frame
Assembly
Pull Clamp Hook
Push
Clamp
Handle FP1405
Fig. 36 Window frame assembly removal.
be cleaned two or three times with a non-ammonia
household cleaner and warm water (we recommend
gas fireplace glass cleaner). After that the glass should
be cleaned two or three times during each heating
season depending on the circumstances present.
Clean glass after first two weeks of
operation.
Do not clean glass when it is hot.
Do not use abrasive cleaners.
Do not strike or slam the glass.
Installation of Logs &
Burner Lava Rock Material
Refer to Figure 37.
1. Remove window frame assembly.
2. Remove logs from packaging.
3. Place rear log (B15) on rear bracket (ensure log is
seated properly, levelled and centered to the unit),
so it will not move from side to side and it is firmly
positioned on the bracket.
4. Slip front ember log (B12) down in the front deflector.
5. Place front left log (B13) on top burner, left side. Use
log's bottom holes to locate it into the left bracket log
locator studs.
6. Place front right log (B14) on top of burner, right
side. Use log's bottom holes to locate it into the right
bracket log locator studs.
7. Place burner lava rock on top of burner. (Fig. 37)
Refer to "Setting Temperature Rise".
8. Place top right log (B17) onto locator notches.
Ensure log is secure.