INSTALLER/CONSUMER
D
E
S
I
G
N
C
E
R
T
I
F
I
E
D
SAFETY INFORMATION
PLEASE READ THIS MANUAL
BEFORE INSTALLING AND
USING APPLIANCE
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
the gas supplier.
Direct Vent Zero Clearance
Gas Fireplace Heater
Model: 41DVN, 41DVDSN
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.
DO NOT STORE OR USE
GASOLINE OR OTHER
FLAMMABLE VAPORS AND
LIQUIDS IN THE VICINITY OF
THIS OR ANY OTHER
APPLIANCE.
Homeowner’s Installation and
Operating Manual
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
20009999 5/08 Rev. 6
41DVN / DVSN Direct Vent Gas Fireplace
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 General Information, Warnings, Cautions ........................................................................... 3
& Operating Instructions Requirements for the Commonwealth of Massachusetts ................................................... 4
Fireplace Dimensions ..........................................................................................................
Locating Your Fireplace ......................................................................................................
Clearance to Combustibles .................................................................................................
Mantels ................................................................................................................................
Hearth .................................................................................................................................
Framing & Finishing ............................................................................................................
Final Finishing .....................................................................................................................
Gas Specifications ..............................................................................................................
Gas Inlet and Manifold Pressures .......................................................................................
High Elevations ...................................................................................................................
Gas Line Installation ...........................................................................................................
Optional Remote ON/OFF Switch Installation .....................................................................
Alternate Switch Location .................................................................................................
EB-1 Electrical Box ...........................................................................................................
Optional Top Vent Application ...........................................................................................
General Venting
General Venting ................................................................................................................
General Venting Information - Termination Location .........................................................
General Information Assembling Vent Pipes .....................................................................
Flex Vent Pipes .................................................................................................................
Twist Lock Pipes ...............................................................................................................
How to Use the Vent Graph ..............................................................................................
Rear Wall Vent Application & Installation ..........................................................................
Vertical Sidewall Application & Installation ........................................................................
Below Grade Installation ...................................................................................................
Vertical Through-the-Roof Application & Installation .........................................................
Venting Components .........................................................................................................
Operating Instructions
Glass Information ..............................................................................................................
Louvre Removal ................................................................................................................
Window Frame Assembly Removal ..................................................................................
Glass Cleaning ..................................................................................................................
Installation of Logs, Lava Rock & Ember Material ............................................................
Flame & Temperature Adjustment .....................................................................................
Flame Characteristics .......................................................................................................
Inspecting the Venting System ..........................................................................................
Lighting and Operating Instructions (SIT Valve) ................................................................
Lighting and Operating Instructions (White-Rodgers Valve) .............................................
Troubleshooting Gas Control (SIT 820 Millivolt Gas Valve) ..............................................
Troubleshooting Gas Control (White-Rodgers Valve) .......................................................
Fuel Conversion Instructions ............................................................................................
Unit Adjustment .................................................................................................................
Maintenance
Cleaning the Standing Pilot Control System .....................................................................
Replacement Parts
Optional Accessories Fan Kits .............................................................................................................................
Hard (Direct) Wire Hook Up ..............................................................................................
Remote Controls ...............................................................................................................
Ceramic Refractory Panels ...............................................................................................
Decorative Bay Windows ..................................................................................................
Decorative Frame Trim ......................................................................................................
Warranty
Installation and Startup Checklist
Warranty Registration
Energuide
.......................................................................................................................................... 48
.......................................................................................................................................... 52
.......................................................................................................................................... 43
............................................................................................................................... 49
.......................................................................................................................................... 51
5
7
7
7
8
8
8
8
8
8
8
9
10
10
10
12
13
14
14
15
15
15
17
21
21
24
25
25
25
25
26
27
27
27
28
29
30
33
34
39
41
46
46
47
47
47
47
2
20009999
Installation & Operating Instructions
�
This gas appliance should be installed by a qualified installer,
preferably NFI or WETT (Canada) certified, in accordance with
local building codes and with current CSA-B149.1 Installation
codes for Gas Burning Appliances and Equipment. If the unit is
being installed in a mobile home, the installation should comply
with the current CAN/CSA Z 240.4 code. For U.S.A Installations
follow local codes and/or the current National Fuel Gas Code.
ANSI Z223.1/NFPA 54.
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 chil-
dren should be carefully supervised when in the same
room as fireplace.
41DVN / DVSN Direct Vent Gas Fireplace
12. This fireplace requires adequate ventilation and
combustion air to operate properly.
13. This fireplace must not be connected to a chimney flue
serving a separate solid fuel burning fireplace.
14. When the fireplace is not in use it is recommended that the
gas valve be left in the OFF position.
41DVN / 41DVP / 41DVDSN / 41DVDSP
Certified To
ANSI Z21.88-2005 / CSA 2.33-2005
Vented Gas Fireplace Heater
WARNING: Check with your electronics manufacturer
before installing a television or other electronic device above this fireplace.
This appliance may be installed in an aftermarket
permanently located, manufactured home or mobile
home, where not prohibited by local codes.
This appliance is only for use with the type of gas
indi-cated on the rating plate. This appliance is not
convertible for use with other gases, unless a certified kit is used.
4. Under no circumstances should this fireplace be modified.
Parts removed for servicing should be replaced prior to
operating this fireplace again.
5. Installation and any repairs to this fireplace must be
performed by a qualified installer, service agency or gas
supplier. A professional 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 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 vapor and liquids.
This fireplace should not be used as a drying rack for clothing, nor should Christmas stocking 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 fireplace.
10. The flow of combustion and ventilation air must not be
obstructed in any way.
11. When 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.
20009999
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
Remove any plastic from trim parts before turning the
fireplace 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 CFM Corporation company gas
fireplace to give off some odor the first time it is burned.
This is due to 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. If the op
tional fan kit has been installed, place the fan switch in
the “OFF” position during this time.
Proposition 65 Warning: Fuels used in gas, woodburning 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
3
41DVN / DVSN Direct Vent Gas Fireplace
Installation & Operating Instructions
Requirements for 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 all side wall horizontally vented gas fueled
equipment installed in every dwelling, building or
structure used in whole or in part for residential
purposes, including those owned or operated by the
Commonwealth and where the side wall exhaust vent
termination is less than seven (7) feet above finished
grade in the area of the venting, including but not limited
to decks and porches, the following requirements shall
be satisfied:
Installation of Carbon Monoxide Detectors
At the time of installation of the side wall horizontal
vented gas fueled equipment, the installing plumber
or gas fitter shall observe that a hard wired carbon
monoxide detector with an alarm is installed on each
additional level of the dwelling, building or structure
served by the side wall horizontally vented gas fueled
equipment. It shall be the responsibility of the property
owner to secure the services of qualified licensed
professionals for the installation of hard wired carbon
monoxide detectors.
In the event that the side wall horizontally vented gas
fueled equipment is installed in a crawl space or an
attic, the hard wired carbon monoxide detector with
alarm and battery back-up may be installed on the next
adjacent floor level.
In the event that the requirements of this subdivision
can not be met at the time of completion of installation,
the owner shall have a period of thirty (30) days
to comply with the above requirements; provided,
however, that during said thirty (30) day period, a
battery operated carbon monoxide detector with an
alarm shall be installed.
Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required in
accordance with the above provisions shall comply with
NFPA 720 and ANSI/UL 2034 listed and IAS certified.
Signage
A metal or plastic identification plate shall be
permanently mounted to the exterior of the building at
a minimum height of eight (8) feet above grade directly
in line with the exhaust vent terminal for the horizontally
vented gas fueled heating appliance or equipment. The
sign shall read, in print size no less than one-half (1/2)
inch in size, “GAS VENT DIRECTLY BELOW, KEEP
CLEAR OF ALL OBSTRUCTIONS”.
Inspection
The state or local gas inspector of the side wall
horizontally vented gas fueled equipment shall not
approve the installation unless, upon inspection, the
inspector observes carbon monoxide detectors and
signage installed in accordance with the provisions of
248 CMR 5.08(2)(a)1 through 4.
Exemptions
The following equipment is exempt from 248 CMR
5.08(2)(a)1 through 4:
• The equipment listed in Chapter 10 entitled
“Equipment Not Required To Be Vented” in the most
current edition of NFPA 54 as adopted by the Board;
and
• Product Approved side wall horizontally vented gas
fueled equipment installed in a room or structure
separate from the dwelling, building or structure
used in whole or in part for residential purposes.
MANUFACTURER REQUIREMENTS
Gas Equipment Venting System Provided
When the manufacturer of Product Approved side
wall horizontally vented gas equipment provides a
venting system design or venting system components
with the equipment, the instructions provided by the
manufacturer for installation of the equipment and the
venting system shall include:
• Detailed instructions for the installation of the venting
system design or the venting system components;
and
• A complete parts list for the venting system design or
venting system.
Gas Equipment Venting System NOT Provided
When the manufacturer of a Product Approved side
wall horizontally vented gas fueled equipment does
not provide the parts for venting the flue gases, but
identifies “special venting systems”, the following
requirements shall be satisfied by the manufacturer:
• The referenced “special venting system” instructions
shall be included with the appliance or equipment
installation instructions; and
• The “special venting systems” shall be Product
Approved by the Board, and the instructions for
that system shall include a parts list and detailed
installation instructions.
A copy of all installation instructions for all Product
Approved side wall horizontally vented gas fueled
equipment, all venting instructions, all parts lists
for venting instructions, and/or all venting design
instructions shall remain with the appliance or
equipment at the completion of the installation.
4
20009999
41DVN / DVSN Direct Vent Gas Fireplace
S - Rough Opening Width
Rough
Opening
Height
Electrical
Access
Rough
Opening
Depth
Gas Line
Access
V
V
W
K
U
T
H
I
J
P
Q
K
O
N
F
D
E
G
G
A
C
R
M
L
B
Recessed
Nailing Flange
Fireplace Dimensions (Installed as Top Vent)
Fig. 1 Fireplace specifications and framing dimensions.
Ref. 41DVN / 41DVSN
A 41” (1041 mm)
B 37” (940 mm)
C 36” (914 mm)
D 24
¹⁄₂” (622 mm)
E 7” (178 mm)
F 6” (152 mm)
G 1
H 19
I 5
J 25” (635 mm)
K 5/8” (16 mm)
L 10
M 2” (51 mm)
N 7
O 1
P 7” (178 mm) Dia.
Q 4” (102 mm) Dia.
Framing Dimensions
R 38
S 41
T 19
U 62
V 44” (1118 mm)
W 31
20009999
¹⁄₄” (32 mm)
¹⁄₂” (495 mm)
¹⁄₂” (140 mm)
³⁄₄” (273 mm)
⁵⁄₈” (194 mm)
⁷⁄₈” (48 mm)
¹⁄₂” (978 mm)
¹⁄₄” (1048 mm)
¹⁄₂” (495 mm)
¹⁄₄” (1581 mm)
³⁄₄” (807 mm)
5
41DVN / DVSN Direct Vent Gas Fireplace
H
R - Rough Opening Width
Gas Line
Access
Rough
Opening
Height
Electrical
Access
Rough
Opening
Depth
U
U
V
T
J
S
I
J
P
O
N
H
G
F
D
E
G
A
C
Q
L
K
B
Recessed
Nailing Flange
Fireplace Dimensions (Installed as Rear Vent)
Fig. 2 Fireplace specifications and framing dimensions.
Ref. 41DVN / 41DVSN
A 41” (1041 mm)
B 37” (940 mm)
C 36” (914 mm)
D 24
¹⁄₂” (622 mm)
E 7” (178 mm)
F 6” (152 mm)
G 1
H 19
¹⁄₄” (32 mm)
¹⁄₂” (495 mm)
I 25” (635 mm)
J 5/8” (16 mm)
K 10
L 2” (51 mm)
M 7
N 1
O 31
P 32
Q 38
R 41
S 19
T 62
³⁄₄” (273 mm)
⁵⁄₈” (194 mm)
Framing Dimensions
⁷⁄₈” (48 mm)
¹³⁄₁₆” (808 mm)
⁹⁄₁₆” (827 mm)
¹⁄₂” (978 mm)
¹⁄₄” (1048 mm)
¹⁄₂” (495 mm)
¹⁄₄” (1581 mm)
U 44” (1118 mm)
V 31
6
³⁄₄” (807 mm)
20009999
J
F
G
H
I
Mantel
Leg
O
N
M
L
K
Y
E
A
B
C
D
F
Y
B
X
Locating Your Fireplace
A B CDE
V
W
X
Y
Z
Fireplace
LU584-1
Fig. 3 Locating Gas Fireplace
A) Flat on wall B) Cross corner C) **Island
D) Room divider E) Flat on wall corner F) Chase installation
Y) Refer to “Clearance to Combustibles” Section
Note (Fig. 3):
** Island (C) and Room Divider (D) installation is possible as
long as the horizontal portion of the vent system (X) does not
exceed 20’ (610 cm). See details in Venting Section.
Clearance to Combustibles
41DVN / DVSN Direct Vent Gas Fireplace
Maintain Minimum
3/4” (19 mm)
Clearance to
Combustibles
Louvre Assembly
Top
Top of Combustion
Chamber
Bottom of Door Trim
CFM146
Mantel Chart
Mantel Shelf Mantel from Top
Ref. or Breast Plate Ref. of Comb. Chamber
Depth
V 10” (254 mm) A 19” (483 mm)
W 8” (203 mm) B 17” (432 mm)
X 6” (152 mm) C 15” (381 mm)
Y 4” (101 mm) D 13” (330 mm)
Z 2” (51 mm) E 11” (279 mm)
Fig. 4a Combustible mantel minimum installation.
Top of unit to ceiling ................................. 36” (914 mm)
Front of unit to combustibles ................... 36” (914 mm)
Appliance
Top .........................................................
Bottom .....................................................
Side .........................................................
Back ........................................................
0” (0 mm)
0” (0 mm)
0” (0 mm)
0” (0 mm)
Venting
Concentric sections of DV Vent ...................
1” (25 mm)
Nonconcentric sections of DV Vent
Sides and bottom ..................................
Top ........................................................
Flex Vent ..................................................
1” (25 mm)
2” (51 mm)
7/8” (22 mm)
Mantels
The height that a combustible mantel is fitted above the
fireplace 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
Figures 4a, 4b and the Mantel Chart below.
The distances and reference points are not affected by
the fitting of a bay window front trim kit.
Noncombustible mantels and legs may be installed at
any height and width around the appliance. When using
paint or lacquer, it must be heat resistant to prevent
discoloration.
20009999
Black
Surround
Face
CFM164a
Side of
Combustion Chamber
CFM170
Mantel Mantel Leg from Side
Ref. Leg Depth Ref. of Comb. Opening
F 10” (254 mm) K 11
G 8” (203 mm) L 9
H 6” (152 mm) M 7
I 4” (101 mm) N 5
J 2” (51 mm) O 3
Fig. 4b Combustible mantel leg minimum installation.
¹⁄₂” (292 mm)
¹⁄₂” (241 mm)
¹⁄₂” (191 mm)
¹⁄₂” (140 mm)
¹⁄₂’” (89 mm)
7
41DVN / DVSN Direct Vent Gas Fireplace
A
B
Hearth
A hearth is not mandatory, but is recommended for
aesthetic purposes. We recommend a noncombustible
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-insulated exterior wall or chase, it is mandatory that the outer walls be insulated to
conform to applicable insulation codes.
NOTE: Never allow vapor barrier to contact the outer
casing of this fireplace or venting.
Framing And Finishing
Check fireplace to make sure it is levelled
and properly positioned.
To mount the appliance:
1. Choose the location.
2. This unit comes with four (4) flanges pre-mounted
on both sides of the fireplace to allow two different
drywall thicknesses to be used. Flange “A” is for 1/2”
drywall while flange “B“ is for 5/8” drywall. (Fig. 5)
3. Bend the desired flanges out 90° on both sides of
the fireplace. Slide the fireplace into the framed
opening until the flanges contact the front surfaces
of the framing. Level the unit and secure it firmly in
place.
Screw Drywall
Position Depths
A 1/2” / 13mm
B 5/8” / 16mm
Flange Location for Desired
Drywall Depth
Gas Specifications
Max. Min.
Gas Input Input
Model Fuel Control BTUH BTUH
41DVN Natural Gas Millivolt Hi/Lo 30,000 20,000
41DVP Propane Millivolt Hi/Lo 27,000 19,000
41DVDSN Natural Gas 120 Volt 30,000 - 41DVDSP Propane 120 Volt 27,000 --
Gas Inlet and Manifold Pressures
Natural LP (Propane)
Minimum Inlet Pressure 5.5” w.c. 11.0” w.c.
Maximum Inlet Pressure 14.0” w.c. 14.0” w.c.
Manifold Pressure 3.5” w.c. 10.0” w.c.
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 Line Installation
When purging gas line the front glass must
be removed.
The gas pipeline can be brought in through the right
side of the appliance. Knockouts are provided at convenient locations to allow for the gas pipe installation
and testing of any gas connection.
The gas line connection can be made with properly
tinned 3/8” copper tubing, 1/2” rigid pipe or an approved
flex connector. Since some municipalities have
additional local codes, it is always best to consult your
local authority and the CSA-B149.1 installation codes.
FP1539
Fig. 5 Drywall flange location.
For USA installations consult the current National Fuel
Gas Code, ANSI Z223.1/NFPA 54.
Final Finishing
Noncombustible materials such as brick or tile can be
extended over the edges of the face of the fireplace.
Do not cover the window frame assembly, any vent,
louvre assembly top or louvre assembly bottom. If
a Trim Kit is to be installed, brick and tile will have to be
installed flush with the side of this appliance.
8
20009999
41DVN / DVSN Direct Vent Gas Fireplace
1/2” Gas Supply
1/2” NPT x 3/8” Flare Shut-off
Valve
3/8” Flex Line
(from valve)
FP297a
Fig. 6 Typical gas supply installation.
Always check for gas leaks with a mild
soap and water solution applied with a
brush no larger than 1” (25 mm). Never
apply soap and water solution with a spray
bottle. Do not use an open flame for leak
testing.
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.
When purging gas line, the front window frame assembly must be removed.
1. 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 prop
erly tinned 3/8” copper tubing, 3/8” rigid pipe or an
approved flex connector. Since some municipalities have additional local codes, it is always best to
con- sult your local authority and the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 in the USA or the
CSA-B149.1 installation codes.
*Adhere to the following installation requirements in the
State of Massachusetts:
• The installer must be a licensed plumber or gas fitter.
• Flex connectors must be Massachusetts approved, cannot
exceed 36” (914 mm) in length, must be a minimum 1/2”
dia. and may not penetrate a wall.
2. The gas control inlet is 3/8” NPT. typical installation
layout for rigid pipe is shown in Figure 8.
NOTE: All models are equipped with a flex tube
with a shut off valve having a 1/2” NPT inlet. The
flex line with shut off is shipped in the control
valve compartment. Using two wrenches, tighten
the flexible tube at the shut off valve and at the
gas control
3. When using a flex connector,* use only approved fittings. When a union is installed, provide easy access
in its placement for servicing. Refer to gas specification for pressure details and ratings.
4. When a vertical section of gas pipe is required for
the installation, a condensation trap is needed. In
Canada see CSA-B149.1 for code details. See the
National Fuel Gas Code ANSI Z223.1/NFPA 54 in
the USA.
5. For natural gas, a minimum of 3/8” iron pipe with a
gas supply pressure of 4.5” w.c. (from the gas me
ter). Consult with local gas utility and ANSI Z223.1/
NFPA 54 if any questions arise concerning pipe
sizes.
6. Turn the gas supply to ‘ON’ and check for leaks. DO
NOT USE OPEN FLAME FOR THIS PURPOSE.
Use an approved leak testing solution.
7. The appliance and its appliance main gas valve
must be disconnected from the gas supply piping
system during any pressure testing of that system at
test pressures in excess of 1/2 psig (3.5kPa).
8. This appliance must be isolated from the gas supply
piping system by closing its equipment shut off valve
during any pressure testing of the gas supply piping
system at test pressures equal to 1/2 psig (3.5KPa).
Always check for gas leaks with a mild soap and
water solution. Do not use an open flame for leak
testing.
The millivolt gas control is equipped with a captured
screw type pressure test point, therefore it is not necessary to provide a 1/8” test point up stream of the control.
When using copper or flex connector use only approved
fittings. Always provide a union when using black iron
pipe so that the gas line can be easily disconnected for
burner or fan servicing . See gas specifications 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.
Optional Remote ON/OFF Switch
Installation
Do not wire the remote ON/OFF wall switch
for this gas appliance into a 120v power
supply.
1. Thread wire through the electrical knockout located
on either side of the unit. Take care not to cut the
wire or insulation on metal edges. Ensure the wire is
secured and protected from possible damage. Run
one end of the gas control valve and the other end to
the conveniently located wall switch.
20009999
9
41DVN / DVSN Direct Vent Gas Fireplace
TPTH
TH
TP
OUTSIDE
ELECTRICAL BOX
FRONT OF UNIT
INSIDE
FRONT OF UNIT
2. Attach the wire to the ON/OFF switch and install
switch into receptacle box. Attach cover plate to
switch.
3. Connect wiring to gas valve. (Fig. 7)
Remote
ON/OFF
Switch
FP1218
Fig. 7 Remote switch wiring diagram for millivolt models.
Alternate Switch Location
The remote switch can be installed on either side of
the access door. Mount the switch to the switch bracket
provided. Screw the bracket on either side of the frame,
line up the screws with the prepunched holes. (Fig. 8)
The EB-1 electrical junction box has been supplied
standard on all models to allow for easy installation of
an optional fan kit.
To connect the EB-1 box to the house electrical supply,
follow the steps below.
1. Unscrew the retaining screw from the EB-1 base
plate (Fig. 9) and remove the EB-1 assembly from
the fireplace.
2. Remove the front cover of the EB-1 box.
3. Remove the plug socket assembly from the EB-1
box.
4. Feed the supply line in from the outside through the
cable clamp. (Fig. 9)
5. Connect black wire of the power supply line to the
brass screw (polarized) of the socket assembly.
6. Connect the white wire of the power line to the
chrome screw of the socket assembly.
7. Connect the ground wire of the supply line to the
green screw of the socket assembly.
8. Refit the socket assembly back into the electrical
box and replace the cover plate. Secure the cable
with the clamp on the outside of the unit to prevent
strain on the connections.
9. The EB-1 electrical junction box is now ready to supply power to the FK12 or FK24 fan kits if fitted.
Fig. 8 Alternate switch location.
EB-1 Electrical Box
The fireplace, when installed, must be electrically connected and grounded in accordance with local codes or, in the absence
of local codes, with the current CSA C22.1
Canadian Electrical Code.
For USA installations, follow the local
codes and the national Electrical Code
ANSI/NFPA No. 70.
It is strongly suggested that the wiring of
the EB-1 Electrical Junction Box be carried
out by a licensed electrician.
Ensure that the power to the supply line
has been disconnected before commencing this procedure.
10
FP1024
FP580
Fig. 9 EB-1 receptacle.
Optional Top Vent Application
The fireplace is shipped as a rear vent unit. If the layout
requires a top vent, convert the unit following the steps
below.
1. Remove the 10 screws securing outer collar adapter
to fireplace. (Fig. 10)
2. Set outer collar adapter aside.
3. Remove insulation from top of unit and discard. Remove the four (4) screws securing flue cover to top
of unit and remove flue cover. (Fig. 11)
20009999
4. Remove the four (4) screws securing flue pipe to
back of unit. Remove flue pipe. (Fig. 11)
5. Secure flue cover to back of flue outlet. Be sure to
replace gasket. (Fig. 12)
6. Install flue pipe and gasket removed in step 4 to top
of unit with four (4) screws. Be sure to replace gasket. (Fig. 12)
7. Secure outer collar adapter to unit with the round
collar on top, secure with 10 screws.
NOTE: Be sure not to damage any gasket material.
41DVN / DVSN Direct Vent Gas Fireplace
Flue Pipe
Replace
Screws (4)
Replace
Screws (4)
Outer Collar
Adapter
Flue
Pipe
Remove
Screws (5)
Rear View
Remove
Screws
(5)
Fig. 10 Remove screws from outer collar adapter.
Insulation
Flue
Cover
Flue
Pipe
FP1030
Remove
Screws (4)
Flue Cover
Fig. 12 Replacing flue cover and flue pipe.
Fig. 13 Completed conversion.
After conversion to top vent configuration,
the 4” (102 mm) flue pipe should be concentric within the 7” (175 mm) outer collar.
FP1028
FP1031
Remove Screws (4)
FP1027
Fig. 11 Remove flue cover and flue pipe.
CAUTION: Remove insulation. Insulation extends
beyond opening in top of unit. Be sure to
remove all insulation before completing
conversion. Insulation measures 9¹⁄₄” x
22³⁄₄” (235 x 578 mm). If the unit is converted back to a rear vent, the insulation (Part
#20003129) must be replaced.
20009999
11
41DVN / DVSN Direct Vent Gas Fireplace
General Venting
Your fireplace is approved to be vented either through
the side wall, or vertical through the roof.
• Only CFM Corporation venting components spe-
cifically approved and labelled for this fireplace
may be used.
• Venting terminals shall not be recessed into a wall or
siding.
• Horizontal venting which incorporates the twist lock
pipe must be installed on a level plane without an
inclining or declining slope.
• Horizontal venting which incorporates the use of flex
venting shall have an inclining slope from the unit of
1/2” (13 mm) per 12” (305 mm).
There must not be any obstruction such as bushes, garden sheds, fences, decks or utility buildings within 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 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 the vent termination be located observing the minimum clearances as shown on following
page.
12
20009999
41DVN / DVSN Direct Vent Gas Fireplace
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
INSIDE
CORNER DETAIL
V
A
G
N
N
CFM145a
General Venting Information - Termination Location
Canadian Installations1 US Installations
A = Clearance above grade, veranda, porch, 12” (30 cm) 12” (30 cm)
deck, or balcony
B = Clearance to window or door that may be 6” (15 cm) for appliances 6” (15 cm) for appliances
opened < 10,000Btuh (3kW), 12” (30 cm) < 10,000 Btuh (3kW), 9”
for appliances > 10,000 Btuh (3kW) and (23 cm) for appliances > 10,000
< 100,000 Btuh (30kW), 36” (91 cm) Btuh (3kW) and < 50,000 Btuh
for appliances > 100,000 Btuh (30kW) (15kW), 12” (30 cm) for
appliances > 50,000 Btuh (15kW)
C = Clearance to permanently closed window 12” (305 mm) recommended to 12” (305 mm) recommended to
prevent window condensation prevent window condensation
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal 18” (458 mm) 18” (458 mm)
distance of 2 feet (610mm) from the center
line of the terminal
E = Clearance to unventilated soffit 12” (305 mm) 12” (305 mm)
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’ (91 cm) within a height of 15’ 3’ (91 cm) 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’ (91 cm) 3’ (91 cm)
J = Clearance to nonmechanical air supply inlet 6” (15 cm) for appliances < 10,000 6” (15 cm) for appliances
to building or the combustion air inlet to any Btuh (3kW), 12” (30 cm) for < 10,000 Btuh (3kW), 9”
other appliances appliances > 10,000 Btuh (3kW) and < (23 cm) for appliances > 10,000
100,000 Btuh (30kW), 36” (91 cm) Btuh (3kW) and < 50,000 Btuh
for appliances > 100,000 Btuh (30kW) (15kW), 12” (30 cm) for
appliances > 50,000 Btuh (15kW)
K = Clearance to a mechanical air supply inlet 6’ (1.83 m) 3’ (91 cm) above if within 10’
(3 m) horizontally
L = Clearance above paved sidewalk or paved 7’ (2.13 m)† 7’ (2.13 m)†
driveway located on public property
M = Clearance under veranda, porch, deck or 12” (30 cm)‡ 12” (30 cm)‡
balcony
N = Clearance above a roof shall extend a minimum of 24” (610 mm) above the highest point when it passes through the roof
surface, and any other obstruction within a horizontal distance of 18” (450 mm).
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 dwell ings
‡ 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 approved 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.
Fig. 14 Vent termination clearances.
20009999
2
13
41DVN / DVSN Direct Vent Gas Fireplace
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
*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.
Fig. 15 Termination clearances.
Canadian Installations
The venting system must be installed in accordance
with the current CSA-B149.1 installation code.
USA Installations
The venting system must conform to local codes and/or
the current National Fuel Code ANSI Z223.1/NFPA 54.
Only venting components manufactured by CFM Corpo
ration may be used in Direct Vent systems.
General Information Assembling Vent Pipes
* Be sure the vent is actually crushed before proceeding. Apply a tug to be sure the vent will not slip off the
collars.
Repeat process with 7” flex vent pipe. The same procedure must be performed on the vent side.
-
No.
of Caps D
1 3’ (914 mm) 2 x D
2 6’ (1.8 m) 1 x D
3 9’ (2.7 m) 2/3 x D
4 12’ (3.7 m) 1/2 x D
D
= # of Termination caps x 3
Min.
C
= (2 / # termination caps) x D
Max.
C
Min.
Apply High Temperature Sealant
Max.
Actual
Actual
Actual
Actual
Actual
584-15
Before joining the flex vent pipe to the unit, apply a
bead of high temperature sealant* (provided) to the 4”
pipe exiting the fireplace. Secure flex vent pipe in place
with a hose clamp (provided).
*Be sure the flex pipe overlaps at least 1” (25 mm) onto
the collars of the fireplace and termination. If the ter
mination has an internal bead, be sure to overlap and
secure 1” (25 mm) past the bead.
14
Flex Vent Pipes
-
Hose Clamp
FP1471
Fig. 16 Apply high temperature sealant to 4” and 7” pipes.
20009999
Twist Lock Pipes
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
When using 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 twist lock pipes together, simply align the beads
of the male end with the grooves of the female end,
twisting the pipe until the flange on the female end
contacts 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. 17)
To make it easier to assembly the joints, we suggest
putting a lubricant (Vaseline or similar) on the male end
of the twist lock pipe prior to assembly.
41DVN / DVSN Direct Vent Gas Fireplace
Vertical dimension from the floor of the unit
to the center of the horizontal vent pipe
Male End
Screw Holes
Fig. 17 Twist-Lock pipe joints.
How to Use the Vent Graph
The Vent Graph should be read in conjunction with the
following vent installation instructions to determine the
relationship between the vertical and horizontal dimensions fo the vent system.
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. 17),
locate the point intersecting 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 unit is 11’
(3.4m) the horizontal run to the face of the outer wall
must not exceed 14’ (4.3m).
EXAMPLE B:
If the vertical dimension from the floor of the unit is 7’
(2.1m), the horizontal run to the face of the outer wall
must not exceed 8¹⁄₂’ (2.6m).
20009999
Female
End
TWL100
Horizontal dimension from the outside face of the wall to the
center of the fireplace vent flange
Fig. 18 Sidewall venting graph. (Dimensions in feet.)
Refer to Page 21 for venting
requirements for snorkels.
Rear Wall Vent Application
When installed as a rear vent unit this appliance may be
vented directly to a termination located on the rear wall
behind the appliance.
• Only CFM Corporation venting components are
approved to be used in these applications (See
‘Venting Components’ listed for different installation
requirements).
• The maximum horizontal distance between the rear
of the appliance (or end of the transition elbow in a
corner application) and the outside face of the rear
wall is 20” (508mm). (Fig. 19, 20)
• Only one 45° elbow is allowed in these installations.
• Minimum clearances between vent pipe and com-
bustible materials are as follows:
Top - 2” (51 mm)
Sides - 1” (25 mm)
Bottom - 1” (25 mm)
15
41DVN / DVSN Direct Vent Gas Fireplace
20 "
(5 0 8 m m )
Ma x .
20 "
(5 0 8 m m )
Ma x .
20” (508 mm)
Max.
Rear Vent Top View
10³⁄₈"
(265 mm)
Vent Opening for Combustible Wall
9³⁄₈"
(240 mm)
Framing
Detail
DVR584-600
Fig. 19 Rear vent application, no elbows.
Rear Vent Top View, Corner Installation
Fig. 20 Rear vent application, one 45° elbow.
FP836
Rear Wall Vent Installation
Step 1
Locate and cut the vent opening in the wall. For combustible walls first frame in opening. (Fig. 21)
NOTE: When using flex vent, the opening will have to
be measured according to the 1/2” (13 mm) rise in 12”
(305 mm) vertical run.
Combustible Walls:
mm) hole through the exterior wall and frame as shown.
(Fig. 21)
Noncombustible Walls:
(191 mm) diameter.
Zero clearance sleeve is only required for
combustible walls.
Step 2
Measure wall thickness and cut zero clearance sleeve
parts to proper length (Maximum 12” / 305 mm). Assemble sleeve to its maximum opening (10³⁄₈” x 9³₈”)
and attach to firestop assembly. (Fig. 22)
Step 3
Measure the horizontal length requirement for the venting including a 2” (51 mm) overlap, i.e. from the elbow
to the outside wall face plus 2” (51 mm). (Fig. 20)
Cut a 10³⁄₈”H x 9³⁄₈” W (265 x 240
Hole opening should be 7¹⁄₂”
Fireplace Hearth
Opening for Noncombustible Wall
7¹⁄₂" Dia.
(190 mm)
Fireplace Hearth
Fig. 21 Locate vent opening on wall.
Adjustable Zero Clear-
ance Sleeve
#8 Screws (2)
Adjustable Zero Clearance Sleeve
Fig. 22 Adjustable zero clearance sleeve.
Rnd.
VO584-100
Max. Length 12”
(305mm)
#8 Screws (2)
#8 Screws
(2)
Firestop
ZCS101
Step 4
Install the 4” (102 mm) vent to the appliance collar and
secure with 3 sheet metal screws. Install the 7” (178
mm) vent pipe to the appliance collar and secure with 3
sheet metal screws. It is not necessary to seal this connection. If a 45° elbow is being used attach the elbow
to the appliance in the same manner then attach the
venting to the elbow.
It is critical that there is no downward
slope away from the appliance when connecting the vent or elbow.
Step 5
Guide the venting through the vent hole as you place
the appliance in its installed position. Guide the 4” (102
mm) and 7” (178 mm) collar of the vent termination into
the outer ends of the venting. Do not force the termination. If the vent pipes do not align with the termination,
remove and realign the venting at the appliance flue
collars. (Fig. 23) Attach the termination to the wall as
outlined in the instruction sheet supplied with the termination.
16
20009999
Finished
1/2" (13mm)
12" (305mm)
Wall
Vent
Termination
FP1005
Fig. 23 Side view of final unit location.
Rear Wall Vent Installations -
Flex Vent Pipe
Follow Steps 1 and 2 on Page 16.
Step 3
Install the 4” (102 mm) flex vent pipe to the appliance
collars described in “General Information Assembling
Vent Pipes”, Page 12. If the installation requires a 45°
angle, grasp the vent pipe close to the appliance collar
and bend to 45°. DO NOT exceed 45°. (Fig. 24)
Install the 7” vent pipe in the same manner as Step 2.
Termination
Flex Section
Appliance Collars
FP1473
Fig. 24 Grasp the vent pipe close to the collar and bend to
45° angle. Do not exceed 45°.
41DVN / DVSN Direct Vent Gas Fireplace
NOTE: Minimum 1” (25mm) rise on any
installation.
FP1472
Fig. 25 There must be a 1/2” rise in 12” length.
Vertical Sidewall Application
Since it is very important that the venting 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 Vent Graph, showing the relationship between ver
tical and horizontal side wall venting, will help to determine the various dimensions allowable.
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 foundations less
than 20” (508 mm) below siding outcrop, the vent pipe
must flush up with the siding.
It is best to locate the fireplace in such a way that mini
mizes 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 (or the top of
the Transition Elbow) to the face of the outer wall.
Horizontal plane means no vertical rise exists on this
portion of the vent assembly.
When installing the appliance as a rear
vent unit, the 90° or 45° Transition Elbow
attached directly to the rear of the unit is
NOT INCLUDED in the following criteria
and calculations, and unless specifically
mentioned should be ignored when calculating venting layouts.
-
-
NOTE: There must be a 1/2” (13 mm) rise in a 12” (305
mm) length of flex vent. Minimum rise for any installation is 1” (25 mm).
Step 4
Assemble the flex vent to the collars on the termination
as you did on the appliance.
20009999
17
41DVN / DVSN Direct Vent Gas Fireplace
1
2
3
4
1
2
3
4
7'6"
(2.3m)
A
B
A + B = 17' (Max.)
(5.2m)
36"
(914mm)
Max.
36"
(914mm)
Max.
• The maximum number of 90° elbows per side wall
installation is three (3). (Fig. 2)
• If a 90° elbow is fitted directly on top of the fireplace
flange the maximum horizontal vent run before the
termination or a vertical rise is 36” (914 mm). (Fig.
27)
3 x 90°
Elbows
Fig. 26 Maximum three (3) 90° elbows per installation.
Fig. 27 Maximum horizontal run with no rise.
3 x 90°
Elbows
FP1176
FP1177
7’
A B
10’
(254 cm)
A + B = 17’
8’
(244 cm)
Fig. 29 Maximum vent run with elbows.
(518cm) Max.
(178 cm)
V584-201
In Figure 28 & 29, dimension A plus B must not be
greater than 17’ (5.2 m)
• 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.
• For each 45° elbow installed in the horizontal run,
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.
• The maximum number of elbow degrees in a system
is 270°. (Fig. 30)
Example:
Elbow 1 = 90°
Elbow 2 = 45°
Elbow 3 = 45°
Elbow 4 = 90°
Total angular variation = 270°
• If a 90° elbow is used in the horizontal vent run (level
height maintained) the horizontal vent length is
reduced by 36” (914 mm). (Fig. 28 & 29) This does
not apply if the 90° elbows are used to increase or
redirect a vertical rise. (Fig. 26)
Example: According to the vent graph (Page 13) the
maximum horizontal vent length in a system with a 7¹⁄₂’
(2.3 m) rise is 20’ (6 m) and if a 90° elbow is required in
the horizontal vent it must be reduced to 17’ (5.2 m).
Fig. 28 Horizontal run reduction.
18
Fig. 30 Maximum elbow usage.
FP1178
1 + 2 + 3 + 4 = 270°
FP1180
20009999
41DVN / DVSN Direct Vent Gas Fireplace
X
X
Vertical Sidewall Installation
Twist Lock Pipe
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. 31) (For
combustible walls first frame in opening.)
NOTE: When using flex vent, the opening will have to
be measured according to the 1/2” (13 mm) rise in 12”
(305 mm) vent run.
Combustible Walls: Cut a 9³⁄₈”H x 9³⁄₈”W (240 x 240
mm) hole through the exterior wall and frame as shown.
(Fig. 31)
Noncombustible Walls:
(191 mm) in diameter.
Vent Opening for Combustible Wall
9³⁄₈"
(240mm)
Hole opening must be 7¹⁄₂”
Adjustable Zero Clear-
ance Sleeve
#8 Screws (2)
Firestop
Adjustable Zero Clearance Sleeve
Fig. 32 Adjustable zero clearance sleeve.
Max. Length 12”
(305mm)
#8 Screws (2)
#8 Screws
(2)
ZCS101
Step 4
Apply a band of silicone to the inner and outer flue
collars of the fireplace and using appropriate length of
pipe section(s) attach to fireplace with three (3) screws.
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.
9³⁄₈"
(240mm)
Framing Detail
Fireplace Hearth
Vent Opening Noncombustible Wall
7¹⁄₂" Dia.
(190mm)
Fireplace Hearth
Fig. 31 Locate vent opening on wall.
VO584-100
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.
32)
Zero clearance sleeve is only required for
Fig. 33 Vertical height requirements.
Step 5
Measure the horizontal length requirement including a
2” (51 mm) overlap, i.e. from the elbow to the outside
wall face plus 2” (51 mm) (or the distance required if
installing a second 90° elbow). (Fig. 34)
Always install horizontal venting on a level
plane.
FP1181
combustible walls.
Step 6
Step 3
Place fireplace into position. Measure the vertical height
(X) required from the base of the flue collars to the cen
ter of the wall opening. (Fig. 33)
-
Use appropriate length of pipe sections - telescopic or
fixed - and install. The sections which go through the
wall are packaged with the starter kit, and can be cut to
suit if necessary.
20009999
19
41DVN / DVSN Direct Vent Gas Fireplace
X
X
6¹⁄₂" (165mm)
8"
(203mm)
8"
(203mm)
8"
(203mm)
8"
(203mm)
Sealing vent pipe and firestop gaps with high temperature sealant will restrict cold air being drawn in
around fireplace.
FP1182
Fig. 34 Horizontal length requirement.
Step 7
Apply high temperature sealant to 4” (102 mm) and
7” (178 mm) collars or the termination one inch away
from crimped end. Guide the vent terminations 4” and
7” collard 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. 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” (152 mm) beyond the outer
face of the wall.
Support horizontal pipes every 36”
(914mm) with metal pipe straps.
installed spring. Place the next spring approximately
8” (203 mm) from the last spring. Finally place the last
spring approximately 8” (203 mm) from the last spring
installed. (Fig. 24) Maintain equal spacing between
spacer springs.
4” Flex Vent
Pipe
Spacer Spring
FP1474a
Fig. 35 Install spacer springs.
Step 4
Install the 4” (102 mm) flex vent pipe to the appliance
collar as described on Page 14. Secure the end with
the first spring 8” (203 mm) from the flex pipe end to the
unit.
Step 5
Slide the 7” (178 mm) flex vent pipe over the 4” flex
vent pipe and secure the 7” collar as described on Page
14.
Step 6
Bend the flex pipe horizontal so the bottom of the hori
zontal pipe measure 6¹⁄₂” (165 mm) from the top of the
unit immediately after the 90° formation. (Fig. 36) Be
sure to follow the 1/2” (13 mm) rise in a 12” (305 mm)
horizontal run rule.
Step 7
Install the 4” flex then 7” flex to the termination.
Vertical Sidewall Installation
Flex Vent Pipe
NOTE: The 40” (1016 mm) flex vent is used for 90° off
the top of the unit then out the back wall.
Follow Step 1 and 2 on Page 19.
Step 3
Install the four (4) spacer springs on the 4” flex vent
pipe. When installing the spacer springs around the
4” pipe, stretch the spring to approximately 15” (381
mm), wrap the spring around the pipe and interlock the
ends of the spacer spring approximately 2” (51 mm).
(Fig. 23) Measure from8” (203 mm) the end of the pipe.
Place the next spring 8” (203 mm) from the previously
20
FP1475
Fig. 36 Bend flex vent at 90° so horizontal portion is 6¹⁄₂” (165
mm) off top of unit.
20009999
41DVN / DVSN Direct Vent Gas Fireplace
Below Grade Installation
When it is not possible to meet the required vent terminal clearances of 12” (305 mm) above grade level, a
snorkel kit is recommended. It allows installation depth
down to 7” (178 mm) below grade level. The 7” (178
mm) is measured from the center of the horizontal vent
pipe as it penetrates through the wall.
Ensure the sidewall venting clearances are observed. If venting system is installed below ground,
we recommend a window well with adequate and
proper drainage to be installed around the termination area.
If installing a snorkel, a minimum 24” (610 mm) vertical
rise is necessary. The maximum horizontal run with the
24” vertical pipe is 36” (914 mm). This measurement
is taken from the collar of the fireplace (or transition
elbow) to the face of the exterior wall. See the Sidewall
Venting Graph for extended horizontal run if the vertical
exceeds 24” (610 mm).
1. Establish vent hole through the wall (Fig. 31)
2. Remove soil to a depth of approximately 16” (406
mm) below base of snorkel. Install drain pipe. Install
window well (not supplied). Refill hole with 12” (305
mm) of coarse gravel leaving a clearance of approximately 4” (102 mm) below snorkel. (Fig. 37)
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” (102 mm) clear
ance below snorkel. (Fig. 37)
Zero Clearance Sleeve
(if required)
Firestop
7” Pipe
24” (608mm)
Minimum*
Fig. 37 Below grade installation.
Screws
7TDVSNORK
(Snorkel)
4” Clearance Min.
Window Well
Gravel
Drain
Foundation Wall
*A minimum of 24”
(608mm) vertical pipe
must be installed when using the 7TDVSNORK.
BG402a
Do not back fill around snorkel.
A clearance of at least 4” must be main
-
tained 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, then secure to snorkel with self
drilling #8 x 1/2 sheet metal screws. It will be necessary
to extend vent pipes out as far as the protruding wall
face. (Fig. 38)
Snorkel
Foundation
Recess
Watertight
Seal Around
Pipe
Fig. 38 Snorkel installation, recessed foundation.
Wall Screws
Sheet Metal
Screws
BG401
Vertical Through-the-Roof Application
This gas fireplace has been approved for:
• Vertical installations up to 40’ (12 m) in height. Up
to a 10’ (3 m) horizontal vent run can be installed
within the vent system using a maximum of two 90°
elbows. (Fig. 39)
• Up to two 45° elbows may be used within the hori-
-
zontal run. For each 45° elbow used on the horizontal plane, the maximum horizontal length must be
reduced by 18” (450 mm).
Example: Maximum horizontal length:
No elbows = 10’ (3 m)
1 x 45° elbow = 8.5’ (2.6 m)
2 x 45° elbows = 7’ (2.1 m)
• A minimum of an 8’ (2.5 m) vertical rise is required.
• Two sets of 45° elbow offsets may be used within the
vertical sections. From 0 to a maximum of 8’ (2.5 m)
of vent pipe can be used between elbows. (Fig. 40)
• 7DVCS supports offsets. (Fig. 42) This application
will require that you first determine the roof pitch
and use the appropriate starter kit. (Refer to Venting
Components List)
• The maximum angular variation allowed in the sys-
tem is 270°. (Fig. 40)
• The minimum height of the vent above the highest
point of penetration through the roof is 2’ (610 mm).
(Fig. 43) Refer to note 2, Page 13.
20009999
21
41DVN / DVSN Direct Vent Gas Fireplace
1
2
3
4
1
2
3
4
Vertical Through-the-Roof Installation
Max. Height 40’ (12.2m)
Min. Height 8’ (2.4m)
Max. 10’ (3m)
Support Straps
Every 3’ (.9m)
Max.
Height 40’ (12.2m)
Min.
Height 8’ (2.4m)
Fig. 39 Support straps for horizontal runs.
Max. 10’ (3m)
FP1183
1. Locate your fireplace.
2. Plumb to center of the (4”) flue collar from ceiling
above and mark position.
3. Cut opening equal to 9
³⁄₈” 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 inch clearance to the vent pipe, i.e.,
the hole must be at least 9³⁄₈” x 9³⁄₈” (240 x 240 mm).
5. Place fireplace into position.
6. Place firestop(s) #7DVFS or Attic Insulation Shield
#7DVAIS into position and secure. (Fig. 41)
7. Install roof support (Fig. 42) and roof flashing making
sure upper flange is below the shingles. (Fig. 44)
8. Install appropriate pipe sections until the venting is
above the flashing. (Fig. 44)
9. Install storm collar and seal around the pipe.
10. Add additional vent lengths for proper height. (Fig.
43)
11. Apply high temperature sealant to 4” and 7” collars
of vertical vent termination and install.
If there is a room above ceiling level, fire stop spacer
must be installed on both the bottom ad 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.
1 + 2 + 3 + 4 = 270°
FP1179
Fig. 40 Maximum elbow usage.
Attic Insulation Shield
Upper Floor
11”
(279mm)
Ceiling Installation
Joist
Nails (4)
Fig. 41 Place firestop spacer(s) and secure.
11”
(279mm)
Firestop
Spacer
FP1029
22
20009999
Typical Roof
Min.
2' (610 mm)
Support
Application
Fig. 42 Venting supports.
Typical Ceiling
Support
Application
FP1184
41DVN / DVSN Direct Vent Gas Fireplace
3 #5 Sheet Metal
Screws per Joint
Sealant
Storm Collar
TWL101a
Fig. 44 Roof flashing.
Fig. 43 Minimum termination to roof clearance.
FP1185
20009999
23
41DVN / DVSN Direct Vent Gas Fireplace
Twist Lock Venting Components
7TDVRVT - Through the wall Rear Vent Termination
Starter Kit Model 7TDVSK - Sidewall Venting (Twist Lock Pipe)
Model 7FDVSK - Sidewall Venting (Flex Vent Pipe)
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 for Below Grade Installation
Model 7TDVSKS -Snorkel Kit (Twist Lock Pipe)
Model 7FDVSKS -Snorkel Kit (Flex Vent Pipe)
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
7TDVP1117 -11” to 17” adjustable length
7TDVP3567 -35” to 67” adjustable length
Pipe sections for vertical or horizontal venting
Model 7TDVP8” - 4 per box
Model 7TDVP12” - 4 per box
Model 7TDVP24” - 4 per box
Model 7TDVP36”
Model 7TDVP48”
Firestop Spacer
Model 7DVFS
Attic Insulation Shield
Model 7DVAIS
24
Vertical/Horizontal Combination Offset Support
Model 7DVCS
20009999
Operating Instructions
1.
2.
�
Glass Information
Only glass approved by CFM Corporation
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.
• Do not operate appliance with glass front
removed, cracked or broken.
• Replacement glass (complete with gasket) is
available through your CFM Corporation dealer
and should only be installed by a licensed
qualified service person.
41DVN / DVSN Direct Vent Gas Fireplace
Window Frame
Assembly
Clamps
Glass
Panel
Push
Clamp Handle
Fig. 46 Window frame assembly removal.
Fireplace
Front
Glass
Panel
Pull
Clamp Hook
FP771
Louvre Removal
To remove louvre
assembly top, pull
louvre up and then
lift out. The louvre
assembly bottom
is hinged at the
bottom edge and
swings down. (Fig.
45)
Fig. 45 Remove louvre assembly
top.
Window Frame Assembly Removal
1. Turn the fireplace OFF (including the pilot).
2. If the unit has been operating, allow time for the
components to cool.
3. Remove louvre assembly top.
4. Open the louvre assembly bottom.
5. Release the two clamps along lower edge of the
frame by pulling down on clamp handles. (Fig. 46)
6. Tilt window frame assembly out slightly at the bottom, lift the frame up and away from the fireplace.
7. To replace window frame assembly reverse procedure.
20009999
Louvre
Glass Panel
FP444
Glass Cleaning
It is 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 be cleaned
two or three times with a non-ammonia household
cleaner and warm water (gas fireplace glass cleaner
is recommended). After the 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.
Do not clean glass when hot.
Do not use abrasive cleaners.
Do not strike or slam the glass.
25
41DVN / DVSN Direct Vent Gas Fireplace
Installation of Logs,
Lava Rock and Ember Material
Unpack the logs from packaging and remove each log
from its wrapping materials.
The logs are fragile and should be handled
with care. Keep the packaging material out
of the reach of children and dispose of the
material in a safe manner.
The embers supplied with your fireplace
are made from a high grade rock wool and
should be handled carefully. Wash your
hands immediately after touching to avoid
irritation. The embers must be placed
correctly in order to function properly.
Log Installation
Attention: Glass door should be removed when install-
ing logset and prior to lighting the unit.
1. Remove glass door (Refer to “Window Frame).
2. Remove logs from carton and inspect. Refer to Fig
ure 47.
3. Rear log should be installed onto rear log supports.
Match up slots on rear of log with the vertical log
bracket tabs. Push log back as far as it will go.
4. The center log should be placed on the center log
supports, slots aligned with tabs and log placed rearward.
5. Top twigs can then be placed in their designated positions provided with pins on back logs and grooves
on the center log.
6. Place platinum embers loosely along top surface
of burner along entire length of ported area of front
burner. DO NOT place embers on back portion of
burner. Use individual pieces of embers no larger
than dime size, about 1/16” thick (fluffed up thickness). Use a single layer of embers and DO NOT
overlap pieces. Ember material should be fluffed up
and not compressed. When properly placed, all embers will glow red. Adding more embers than necessary will detract from appearance.
7. Ember tray ends beyond burner port area and area
in front of grate may be covered with lava rock to suit
individual appearance preferences.
8. Purge lines and test pilot operation.
9. Replace glass door. The door must be installed before operating the fireplace.
10. Flame should not impinge (touch) on logs.
WARNING:
other materials on the burner. Use only certified material supplied with this fireplace. Using
uncertified materials will void the warranty.
-
Fig. 47 Correct log placement.
Do not place lava rock or any
TL119
26
TL121
Fig. 48 Logs in final position.
20009999
41DVN / DVSN Direct Vent Gas Fireplace
L
O
H
I
Turn
counterclockwise
to increase
flame height
Turn clockwise
to decrease
flame height
Twig
Back Log
Front Log
Slot
Bracket
Bracket
TL122
Fig. 49 Side view of logset.
Flame & Temperature Adjustment
For fireplaces equipped with Hi/Lo valves, flame adjustment is accomplished by rotating the Hi/Lo adjustment
knob located near the centre of the gas control. (Fig.
50)
SIT 820 Valve
Fig. 50 Flame adjustment knob for SIT valve.
Flame Characteristics
It is important to periodically perform a visual check of
the pilot and the burner flames. Pilot flame is shown in
Figure 51. If the flames appear abnormal call a service
person.
FP1229
Fig. 51 Correct pilot flame appearance.
Inspecting the Venting System
This appliance venting system is designed and constructed to develop a positive flow adequate to remove
flue gases to the outside atmosphere.
Any foreign objects in the venting system, except those
designed specifically for the venting system, may cause
spillage of flue gases.
To inspect the venting system, make sure the main gas
valve is off. Remove window frame assembly (Refer to
Window Frame Assembly Removal Section). Using a
flashlight, check the area above the baffle in the combustion dome. Clean if necessary.
20009999
27
41DVN / DVSN Direct Vent Gas Fireplace
PILOT
ON
OFF
ON
P
I
L
O
T
O
F
F
O
F
F
5
4
3
2
1
O
F
F
P
i
l
o
t
3/8" - 1/2"
Lighting and Operating Instructions - Millivolt Models
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING:If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
A. This heater has a pilot which must be lit manu-
ally. When lighting the pilot follow these
instructions exactly.
B. BEFORE LIGHTING smell all around the
heater area for gas. Be sure to smell next to
the floor because some gas is heavier than air
and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any fireplace
• Do not touch any electric switch
• Do not use any phone in your building
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas suppli-
Lighting Instructions
er’s instructions.
• If you cannot reach your gas supplier, call
the Fire Department
C. Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob will not
push in or turn by hand, do not try to repair it, call a
qualified service technician. Applying force or any
attempted repair may result in a fire or explosion.
D. Do not use this fireplace if any part has been under
water. Immediately call a qualified service technician to inspect the heater and to replace any part of
the control system and any gas control which has
been under water.
1. STOP! Read the safety information above.
2. Turn off all electrical power to the fireplace.
3. For MN/MP/TN/TP appliances ONLY, go on to
Step 4. For RN/RP appliances turn the On/Off
switch to “OFF” position or set thermostat to
lowest level.
4. Open control access panel.
5. Push in gas control knob slightly and turn
clockwise to “OFF”.
Euro SIT
SIT NOVA
Honeywell
6. Wait five (5) minutes to clear out any gas. Then
smell for gas, including near the floor. If you
smell gas, STOP! Follow “B” in the safety information above. If you do not smell gas, go to the
next step.
7. Remove glass door before lighting pilot. (See
Glass Frame Removal section).
8. Visibly locate pilot by the main burner.
9. Turn knob on gas control counterclockwise
to “PILOT”.
10. Push the control knob all the way in and hold.
Immediately light the pilot by repeatedly depressing the piezo spark ignitor until a flame appears.
Continue to hold the control knob in for about one
(1) minute after the pilot is lit. Release knob and it
will pop back up. Pilot should remain lit. If it goes
out, repeat steps 5 through 8.
• If knob does not pop up when released, stop
and immediately call your service technician or
gas supplier.
• If after several tries, the pilot will not stay lit,
turn the gas control knob to “OFF” and call your
service technician or gas supplier.
11. Replace glass door.
12. Turn gas control knob to “ON” position.
13. For RN/RP appliances turn the On/Off switch to
“ON” position or set thermostat to desired setting.
14. Turn on all electrical power to the fireplace.
To Turn Off Gas To Heater
1. Turn the On/Off switch to Off position or set the
thermostat to lowest setting.
2. Turn off all electric power to the fireplace if
service is to be performed.
28
3. Open louvre assembly bottom.
4. Push in gas control knob slightly and turn clockwise to “OFF”. Do not force.
5. Close control access panel.
20009999
41DVN / DVSN Direct Vent Gas Fireplace
ON
OFF
Lighting and Operating Instructions - Direct Spark Models
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING:If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
A. This heater has a pilot which must be lit manu
ally. When lighting the pilot follow these instructions exactly.
B. BEFORE LIGHTING smell all around the heater
area for gas. Be sure to smell next to the floor
because some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL GAS
-
• Do not try to light any fireplace
• Do not touch any electric switch
• Do not use any phone in your building
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
Lighting Instructions
1. STOP! Read the safety information above.
2. Set the thermostat, if used, to the lowest set
ting.
3. Turn off electric power to the appliance.
4. This appliance is equipped with an ignition
device which automatically lights the burner. Do
not try to light the burner by hand.
-
• If you cannot reach your gas supplier, call
the Fire Department
C. Use only the wall switch or remote control switch
to turn the gas control on/off. Never use tools. If
the knob will not push in or turn by hand, do not
try to repair it, call a qualified service technician.
Applying force or any attempted repair may result
in a fire or explosion.
D. Do not use this fireplace if any part has been
under water. Immediately call a qualified service
technician to inspect the heater and to replace
any part of the control system and any gas control which has been under water.
5. Open the access door located at the bottom of
the appliance to expose the controls.
6. Turn gas line valve to “ON”.
7. Wait five (5) minutes to clear out any gas, then
smell for gas, including near the floor. If you
smell gas, STOP! Follow “B” in the safety information above. If you do not smell gas, go to the
next step.
8. Replace control access panel.
9. Turn on all electric power to the appliance.
10. Set thermostat to desired setting (if available).
11. If the appliance will not operate, follow the in
structions “To Turn OFF Gas to Appliance” and
call your service technician or gas supplier.
-
1. Set thermostat to lowest setting.
2. Turn off all electric power to the appliance if
service is to be performed.
20009999
To Turn Off Gas to Heater
3. Open the control access door.
4. Turn gas line valve to the “OFF” position.
5. Close the control access door.
29
41DVN / DVSN Direct Vent Gas Fireplace
Troubleshooting
SIT Millivolt Valve
NOTE: Before troubleshooting the gas control system, be sure external shut off is in the “ON” position.
WARNING:
Table 1
Valve Type Main Operator Safety Magnet
NOVA MV Plus Minimum Voltage 145mV Hold-in Current Less than 285mA
Coil Resistance 2.25Ω ± 0.5Ω Drop-out Current Greater than 125mA
Coil Resistance 0.108Ω ± 0.003Ω
System Checks
Problem Possible Cause Solution
Pilot will not light. Air in gas lines. Bleed all air from gas lines.
Wrong inlet pressure. With the main burner functioning, adjust the inlet pressure
regulator to supply gas to the appliance within the design
parameters of the appliance manufacturer. (Typically 7”NG,
11”LPG).
Defective spark electrode. Replace piezo wire if insulation is cracked or the tip is cor-
roded.
Verify that the spark gap between the pilot and the electrode
is correct.
Defective piezo wire. Replace piezo wire if insulation is damaged, or the wire is bro ken or corroded.
Safety interlock function engaged. Allow thermocouple to cool until the mv drops below the hold in requirements of the safety magnet, (30 seconds or less).
Re-light pilot.
Pilot will not hold. Wrong inlet pressure. With the main burner functioning, adjust the inlet pressure
regulator to supply gas to the appliance within design
parameters of the appliance manufacturer. (Typically 7”NG,
11”LPG)
Pilot adjustment screw not After the pilot has been lit for approximately three minutes,
properly adjusted. and only the thermo-generator wire connected to the main
operator head, measure the voltage across TPTH and TP.
This open circuit voltage should be between 500mv and
750mv. Tune the pilot adjustment screw until the mv reading
falls within these parameters. (Counter-clockwise increases
mv reading, clockwise decreases).
Thermocouple or Make certain that the thermocouple and thermo-generator are
thermo-generator not properly fully inserted and tightened into their receptacles in the pilot
inserted into the pilot housing. head. The thermocouple should be threaded into the valve
hand-tight, plus 1/4 turn with a wrench.
Thermocouple or With the thermocouple and thermo-generator tips cool, clean
thermo-generator has film the upper 3/8” with a very fine emery cloth.
build-up on tip.
Electrical resistance too high. Using a very fine emery cloth, clean thermo-generator and
thermocouple connections at valve. Tighten thermocouple into
valve hand-tight, plus 1/4 turn with a wrench.
Defective thermocouple. Verify that thermocouple is not kinked or damaged. Check
(mv Plus systems) open circuit voltage of thermocouple. Voltage should be
between 18mv and 28mv. If voltage is less than 14mv,
replace thermocouple.
Before doing any gas control service work, remove glass front!
30
20009999
41DVN / DVSN Direct Vent Gas Fireplace
System Checks (continued)
Problem Possible Cause Solution
Defective thermo-generator. After the pilot has been lit for approximately three minutes,
(Millivolt system) and only the thermo-generator wire connected to the main
operator head, measure the voltage across TPTH and TP.
This open circuit voltage should be between 500mV and
750mV. Turn the pilot adjustment screw until the mV reading
falls within these parameters. (Counter-clockwise increases
mV reading, clockwise decreases)
Defective safety magnet. Verify operation of safety magnet in the following
(mV Plus systems) manner.
(A) Depress and hold pilot button.
(B) Verify open-circuit thermocouple voltage as de-
scribed in previous step.
(C) Reconnect thermocouple to valve.
(D) Measure the Millivoltage between the solder button
on the base of the safety magnet, and the valve
body. If the mV reading is above 6mV for vented
appliances, or 8.5 mV for un-vented appliances, and
the safety magnet does not hold, replace the valve.
(E) If closed circuit mV reading is the same as the open
circuit reading, the coil is electrically open. Replace
the valve.
Defective Safety Magnet Verify operation of safety magnet in the following
(Millivolt system) manner.
(A) Remove all wires from the terminals of the main
operator.
(B) Measure the electrical voltage between the terminals TPTH
and TP. If the voltage is above 110mV and the safety magnet
does not hold, replace the valve.
Pilot orifice blocked. Replace orifice with a new orifice of the exact size and
type.
Pilot drops out. Wrong pilot orifice. Replace the orifice with a new orifice supplied specifically for
the appliance and gas type in question.
No gas to main burner Low gas pressure to appliance. With the main burner functioning, adjust the inlet pressure
regulator to supply gas to the appliance within the design
parameters of the appliance manufacturer.
(Typically 7”NG, 11”LPG).
Pilot not lit. Light pilot and wait for thermo-generator to heat up
sufficiently to power the main operator. If pilot fails to
light, or hold, refer to above sections.
Control knob not in ON Rotate OFF/PILOT/ON control knob to the ON position.
position.
Thermostat/wall switch Thermostat not in ON position. Turn thermostat ON, and adjust temperature control to
will not cycle main call for heat.
burner.
20009999
31
41DVN / DVSN Direct Vent Gas Fireplace
System Checks (continued)
Problem Possible Cause Solution
Thermo-generator output After the pilot has been lit for approximately three
voltage not within design minutes, and only the thermo-generator wire connected
parameters. to the main operator head, measure the voltage across
TPTH and TP. This open circuit voltage should be
between 500mV and 750mV. Tune the pilot adjustment
screw until the mV reading falls within these parameters.
(Counter-clockwise increases mV reading, clockwise
decreases) If unable to meet minimum requirements,
replace thermo-generator.
Defective thermostat or (A) With the pilot adjusted properly, ( After the pilot has
thermostat wiring. been lit for approximately three minutes, and only
the thermo-generator wire connected to the main
operator head, measure the voltage across TPTH
and TP. This open circuit voltage should be be
tween 500mV and 750mV. Tune the pilot adjustment
screw until the mV reading falls within these param-
eters. Counterclockwise increases mV reading,
clockwise decreases), place a jumper wire between
TPTH and TH. Take a mV reading across the TPTH
and TP terminals on the valve. This closed circuit
voltage should not fall below 300mV. Record read-
ing.
(B) Remove jumper wire from the TPTH and TH con
nections, and reconnect the thermostat wires to the
same terminals. Take the closed circuit voltage as
described in the previous step. If the mV reading
drops below 150mV, excessive resistance exists in
the thermostat circuit, and must be isolated and
eliminated.
Thermostat/wall switch Defective wall switch. Repeat the above troubleshooting items covered under
will not cycle main “Defective thermostat or thermostat wiring”, except
burner. substitute the words “wall switch” where the word
“thermostat” appears in the instructions.
Excessive wire resistance. Make certain that all mV connections are made using
wire of the proper size. (Reference Page 26).
Valve wired wrong. Thermo-generator leads must be connected to the
TPTH and TP connections of the main operator. Ther
mostat wires must be connected to the TPTH , and TH
terminals of the valve.
Main burner lights in Main operator coil defective. Verify electrical resistance of main operator coil in the
the PILOT position. following manner.
(A) Remove all wires from operator head.
With an Ohm meter, measure electrical resistance
between TP and TH terminals. If the resistance does
not fall within specification, replace valve. (See table 1).
Debris on seat of main valve. Replace valve.
Main seat blown out as a Replace valve.
result of exposing LPG gas
valve to unregulated line
pressure in excess of 15 PSI.
32
20009999
41DVN / DVSN Direct Vent Gas Fireplace
Troubleshooting - Direct Spark Models
NOTE: Before troubleshooting the gas control system, be sure external shut off is in the “ON” position.
WARNING: Before doing any gas control service work, remove glass front!
Problem Possible Cause Solution
No gas to main burner Low gas pressure to With the main burner functioning, adjust the inlet
the appliance. pressure regulator to supply gas to the appliance
within the design parameters of the appliance
manufacturer. (Typically 7”NG, 11”LPG)
Gas line valve not in ON position. Rotate OFF/ON gas line valve to the ON position.
Thermostat/wall switch Thermostat not in ON position. Turn thermostat ON, and adjust temperature
control to call for heat.
Defective thermostat or thermostat Replace thermostat or wiring.
wiring.
Thermostat/wall switch Defective wall switch. Repeat the above troubleshooting items covered
under will not cycle main “Defective thermostat or
thermostat wiring”, except substitute the words
“wall switch” where the word thermostat appears
in the instructions.
Excessive wire resistance. Make certain all connections are made using wire
of the proper size.
Valve wired wrong. Refer to wiring diagram on Page 25.
No spark when system is Check for 120V between black “hot” If 120V not present, check fuse or circuit breaker
turned to “ON” and reset line at control module and “white” or repair wiring leading to fireplace.
cycle* has been return at module.
completed.
Spark for six (6) seconds a. Check that gas is turned on Turn gas on and/or purge system.
at Ignitor, but no ignition system purged.
of burner.
b. Check that tips of ignitor are Position elecrodes so tips are directly above
directly above ports on main burner. burner port ports and about 1/4” to 3/8” above
Spark is between electrodes and not burner.
from one electrode to another
c. Check for 120V at each coil on the If 120V present, but gas valve does not click,
gas valve and listen for click replace gas valve.
indicating gas valve is opening.
Spark for six (6) seconds Check for clean ground path between Clean, position according to wiring diagram and
electrode bracket and fireplace repair defective electric connections. If all
chassis. Check wiring to wiring electrical connections are clean and correct,
diagram label. Check for broken replace module.
electrode on high-tension lead
attachment to module.
Main burner lights a. Check thermostat if applicable. Turn thermostat up to call for heat or replace.
normally and then goes
out.
b. Check high-tension lead and Replace spark electrode assembly.
connector for shorts.
*NOTE: Module DS2070S_A has a five (5) minute lockout timer: If burner does not light wait for five (5) minutes before attempting to relight.
20009999
33
41DVN / DVSN Direct Vent Gas Fireplace
Fuel Conversion Instructions - 41DVN
WARNING: This HI/LO conversion kit must ONLY be
applied as part of a conversion kit supplied by the
appliance manufacturer for the specific appliance
and type of gas being converted.
The conversion shall be carried out in accordance
with the requirements of the provincial authorities having jurisdiction and in accordance with the
requirements of the CSA B149.2 Installation Code
(Canada) and with the requirements of the National
Fuel Gas Code Z223.1/NFPA 54 (United States).
WARNING: This conversion kit shall be installed
by a qualified service agency in accordance with
the manufacturer’s instructions and all applicable
codes and requirements of the authority having
jurisdiction. If the information in this instruction is
not followed exactly, a fire, explosion or production
of carbon monoxide may result causing property
damage, personal injury or loss of life. The qualified
service agency is responsible for the proper installation of this kit. The installation is not proper and
complete until the operation of the converted appliance is checked as specified in the manufacturer’s
instructions supplied with the kit.
Installer Notice: Using an ink pen, fill out the required information on the conversion label. Remove
the backing from label and stick label in a visible
position on bottom of fireplace close to gas valve.
Installer Notice: These instructions must be left
with the appliance.
Instructions for converting your fireplace from Natural
gas to Propane/LP gas.
All fireplaces are shipped from the factory equipped to
operate on Natural gas. To convert the fireplace to operate on Propane/LP gas, follow the instructions below.
Please see the appropriate parts list for your model for
parts included with the fireplace.
Check the items in the kit with the parts list. Notify the
supplier of any items that are missing before installing
the conversion kit.
1. Turn off gas supply.
2. Turn off the electrical supply to the appliance if so
equipped.
Replace Burner Orifice
1. Remove the two (2) screws holding the pilot to the
burner bracket.
2. With suitable tool, remove screws holding left flame
shield. Remove flame shield. DO NOT discard. (Fig.
52)
Left Flame
Shield
FC110
Fig. 52 Remove flame shield, flame deflector bracket and
burner shield. Remove air shutter and slide burner tube to the
right.
Burner
Shield
Split Nut Assembly
Burner
Tube
Flame
Deflector
Bracket
3. Remove flame deflector bracket form burner shield
(one screw) and remove burner shield. (Fig. 52)
NOTE: Removing front grate assembly (remove lava
rock to expose fasteners) improves access to burner
orifice area.
4. Remove air shutter screw and slide burner tube to
the right.
5. Loosen split nut assembly from air shutter. (Fig. 52)
6. With suitable tool, replace natural orifice with correct
propane/LP gas orifice furnished with conversion kit.
Tighten orifice with suitable tool until gas tight. (Fig.
52)
7. Move burner tube back to original position, tighten
split nut assembly and bend tabs back. Replace
flame shield.
8. Set the air shutter opening for propane/LP gas. (Fig.
53) Tighten air shutter screw. Replace burner shield
making sure all four (4) tabs hook over side log/
burner brackets. Replace flame deflector bracket.
Replace left flame shield. (Fig. 52)
NOTE: Failure to adjust air shutter to proper setting will
produce sooting.
Fully Open
T207
Fig. 53 Air shutter setting for propane/LP gas.
NOTE: These are minimum settings. Air shutter open-
ings may be increased to prevent flame sooting.
9. Fasten pilot to burner bracket with two (2) screws.
WARNING: Failure to position the parts in accor
dance with these diagrams or failure to use only
parts specifically approved with this heater may
result in property damage or personal injury.
34
20009999
41DVN / DVSN Direct Vent Gas Fireplace
Replace Pilot Orifice
1. The pilot hood is held in place by spring pressure.
Remove the hood by pulling it directly up from the
pilot bracket. (Fig. 54)
2. Insert a 3/32” (4mm) Allen wrench into the hexagonal
keyway of the injector (Fig. 54) and rotate it counterclockwise until it is free of the injector journal. (Fig.
54)
Pilot
Hood
Allen
Wrench
Conversion
Orifice
T207
Fig. 54 Remove pilot hood and orifice. Insert conversion
orifice.
LPG
Fig. 55 Injectors.
NG
T208
Convert Valve to LP
1. Using a Torx T20 bit or slotted screwdriver, remove
and discard the three (3) pressure regulator mounting screws (A), pressure regulator tower (B) and
diaphragm (C). (Fig. 56)
2. Insure the rubber gasket (D) is properly positioned
and install the new HI/LO pressure regulator assembly to the valve using the new screws (E) supplied
with the kit. Tighten screws securely. (Fig. 57)
3. Install the enclosed installation label (F) to the valve
body where it can be seen.
4. Apply gas to system and relight appliance according
to manufacturer’s instructions.
5. With the main burner “ON”, test the new pressure
regulator assembly for leaks using a soap solution.
6. Relight the main burner in both the HI and LO posi
tions, and verify proper burner ignition and operation.
7. Check inlet and manifold pressures. Loosen screw
in test port 1/2 turn to measure pressure. Tighten
screw when measurement is complete.
-
3. Verify that the new injector is proper for the applica
tion. The injector size is stamped on the side of the
injector near the top. LPG injectors have a groove
machined around their circumference near the top,
while the NG injectors do not have a groove. (Fig.
55) Install the conversion orifice furnished with unit
(Conversion Kit).
4. Insert the Allen wrench into the end of the injector.
Insert the injector into injector journal, and rotate
the injector clockwise until a torque of 9 in/lbs. is
achieved. Replace the pilot hood by aligning the
tab on the base of the hood with the slot in the side
of the pilot journal. Push the hood down directly
onto the pilot bracket. (Fig. 54) The hood must sit
squarely on the bracket for proper operation. Check
to insure the hood is properly seated onto the pilot
bracket.
20009999
-
35
41DVN / DVSN Direct Vent Gas Fireplace
A
B
C
O
F
F
P
I
L
O
T
O
N
D
E
F
O
F
F
P
I
L
O
T
O
N
FC107
Fig. 56 Remove mounting screws, pressure regulator tower
and diaphragm assembly, and discard.
Pressure ranges are:
Gas Supply Pressure (inches w.c.)
Minimum Normal Maximum
LP (Propane) 10.8 11.0 14.0
Manifold Pressure (inches w.c.)
Normal (HI) Normal (Low)
LP (Propane) 10.0” 6.3”
Manifold pressure can be measured by using a 5/16”
I.D. hose in the right hand side of the valve and connecting a manometer. Two test gauge ports are accessible for test gauge connection:
1. Tap on left side of the valve will give inlet supply
pressure.
2. Tap on the right side of the valve will give manifold
pressure.
Min. Input Max. Input
41DVP 19,000 Btu/hr 27,000 Btu/hr
Parts Included w/ Conversion Kit 41DVCKP
Main Burner Orifice - LP 20000537
Label, Conversion 10002876
Pilot, Orifice - LP 76263
Conversion Pressure
Regulator Assembly - LP 74655
Label, SIT Valve --
Fig. 57 Replace regulator.
36
FC108
20009999
41DVN / DVSN Direct Vent Gas Fireplace
Fuel Conversion Instructions - 41DVDSN
The conversion shall be carried out in accordance
with the requirements of the provincial authorities having jurisdiction and in accordance with the
requirements of the CSA B149.2 installation Code
(Canada) and with the requirements of the National
Fuel Gas Code Z223.1/NFPA 54 (United States).
WARNING: This conversion kit shall be installed
by a qualified service agency in accordance with
the manufacturer’s instructions and all applicable
codes and requirements of the authority having
jurisdiction. If the information in this instruction is
not followed exactly, a fire, explosion or production
of carbon monoxide may result causing property
damage, personal injury or loss of life. The qualified
service agency is responsible for the proper installation of this kit. The installation is not proper and
complete until the operation of the converted appliance is checked as specified in the manufacturer’s
instructions supplied with the kit.
Installer Notice: Using an ink pen, fill out the required information on the conversion label. Remove
the backing from label and stick label in a visible
position on bottom of fireplace close to gas valve.
Installer Notice: These instructions must be left
with the appliance.
Instructions for converting your fireplace from
Natural gas to Propane/LP gas.
All fireplaces are shipped from the factory equipped to
operate on Natural gas. To convert the fireplace to operate on Propane/LP gas, follow the instructions below.
Please see the appropriate parts list for your model for
parts included with our fireplace.
Check the items in the kit with the parts list. Notify the
supplier of any items that are missing before installing
the conversion kit.
1. Turn off the gas supply.
2. Turn off the electrical supply to the appliance if so
equipped.
Replace Burner Orifice
1. Remove the two (2) screws holding the pilot to the
burner bracket.
2. With suitable tool, remove screws holding left flame
shield. Remove flame shield. DO NOT discard. (Fig.
58)
3. Remove flame deflector bracket form burner shield
(one screw) and remove burner shield. (Fig. 58)
NOTE: Removing front grate assembly (remove lava
rock to expose fasteners) improves access to burner
orifice area.
Left Flame
Shield
FC110
Fig. 58 Remove flame shield, flame deflector bracket and
burner shield. Remove air shutter and slide burner tube to the
right.
Burner
Shield
Split Nut Assembly
Burner
Tube
Flame
Deflector
Bracket
4. Remove air shutter screw and slide burner tube to
the right.
5. Loosen split nut assembly from air shutter. (Fig. 58)
6. With suitable tool, replace natural orifice with correct
propane/LP gas orifice furnished with conversion kit.
Tighten orifice with suitable tool until gas tight. (Fig.
58)
7. Move burner tube back to original position, tighten
split nut assembly and bend tabs back. Replace
flame shield.
8. Set the air shutter opening for propane/LP gas. (Fig.
59) Tighten air shutter screw. Replace burner shield
making sure all four (4) tabs hook over side log/
burner brackets. Replace flame deflector bracket.
Replace left flame shield. (Fig. 58)
NOTE: Failure to adjust air shutter to proper setting will
produce sooting.
Fully Open
T207
Fig. 59 Air shutter setting for propane/LP gas.
NOTE: These are minimum settings. Air shutter open-
ings may be increased to prevent flame sooting.
9. Fasten pilot to burner bracket with two (2) screws.
WARNING: Failure to position the parts in accor
dance with these diagrams or failure to use only
parts specifically approved with this heater may
result in property damage or personal injury.
Valve Conversion
1. Remove plastic cap from regulator fitting. (Fig. 60)
Unscrew fitting using a 7/16” wrench. Turn fitting
over so end of fitting marked “LPG” (red) screws into
valve. Tighten fitting (snug only). Replace plastic
cap.
20009999
37
41DVN / DVSN Direct Vent Gas Fireplace
1
2
3
4
Regulator
Fitting
T210
Fig. 60 White-Rodgers 25M18A-706PI gas control.
2. Loosen screw and attach a manometer or pressure
gauge to the outlet pressure tap of the control valve.
3. Turn on the gas supply. Turn on the electrical supply
to the appliance. Check for gas leaks using soap and
water solution or leak detection solution. Bubbles
indicate a leak that MUST be corrected. Do not use
an open flame to test for gas leaks.
4. Relight the main burners and verify proper burner
ignition and operation.
5. Check the air shutter opening for the corresponding
gas used. (Fig. 61)
6. With the main burner burning, read the pressure on
the manometer or pressure gauge. The pressure on
the gauge should read between 9.8” and 10.2” w.c.
7. Turn off the gas supply. Turn off the electrical supply
to the appliance.
8. Remove the manometer or pressure gauge. Tighten
the screw in the pressure tap.
9. Turn on the gas supply. Turn on the electrical supply
to the appliance.
10. Immediately test all gas line connections and the
control valve for gas leaks using a soap and water
solution or other gas detection solution. Bubbles
indicate a leak that MUST be corrected. Do not use
an open flame to test for gas leaks.
11. Using a ball point pen, fill out the conversion label
that is supplied with the conversion kit. Place the
conversion label adjacent to the rating plate.
Air Shutter Settings
Model Opening A
41DVDSP Fully Open
Fig. 61 Correct air shutter setting.
NOTE: This is the minimum setting. Air shutter open-
ings may be increased to prevent flame sooting.
Burner Orifice
Natural Propane
Model Orifice Orifice
41DVDSP #37 #53
Parts Included w / Conversion Kit 20007906
Main Burner Orifice - LP 20000537
Label, Conversion 10002876
A
T203
38
20009999
41DVN / DVSN Direct Vent Gas Fireplace
Unit Adjustment - 41DVN / 41DVP
Once installed, the unit should be operated at least
three (3) times to ensure that all is in working order.
NOTE: Manufacturing oils will smoke during initial firing
of appliance. Open windows for ventilation.
Before leaving, the installer should make the following
checks:
Btu Input/Gas Pressure
The fireplace input is marked on the Rating Plate. The
gas inlet pressure specified below is the pressure
where the field-installed gas line connects to the gas
control. This is measured at the inlet test port on the
gas valve in the appliance. Ensure that pressure is as
shown in Table 1.
The manifold pressure is controlled by a regulator
built into the gas control and should be checked at the
pressure outlet test port located on the body of the gas
valve.
The pressure should be checked with the appliance
burning on high (highest setting) and all other gas appliances turned on. One must then read the manometer
and if pressures are not as specified in Table 1, then the
inlet pressure must be adjusted.
The appliance and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of the system at test pressures in
excess of 1/2 psig (3.5 KPa).
Manifold pressure can be measured by using a 5/16”
I.D. hose or tubing. Using a small blade screwdriver,
back out the pressure screw for one full turn. Next, slip
the tubing over the pressure tap extension to check
the pressure with a manometer. Inlet and outlet pressure taps are located on the front (lower left side) of the
valve body.
1. Tap on the left side of the valve will give inlet supply
pressure.
2. Tap on the right side of the valve will give manifold
pressure.
Pressure ranges are as listed below:
Gas Supply Pressure (inches w.c.)
Minimum Normal Maximum
Natural Gas 4.5” 7.0” 14.0”
LP (Propane) 10.8” 11.0” 14.0”
Manifold Pressure (inches w.c.)
Normal (HI) Normal (Low)
Natural Gas 3.5” 1.6”
LP (Propane) 10.0” 6.3”
High Altitude
When installing this fireplace at an elevation between
0 and 2000 feet (0 - 610m) in the USA and 0 and 4500
feet (0 - 1370m) in Canada the input rating does not
need to be reduced.
When installing this fireplace at an elevation above
2,000 feet (in the United States), it may be necessary to
decrease the input rating by changing the existing burner orifice to a smaller size. Input should be reduced
four percent (4%) for each 1,000 feet above sea level,
unless the heating value of the gas has been reduced,
in which case this general rule will not apply. To identify
the proper orifice size, check with the local gas utility.
When installing this fireplace at an elevation above
4,500 feet (in Canada), check with local authorities.
Consult your local gas utility for assistance in determining the proper orifice for your location.
Main Burner/Pilot
The pilot flame size is factory set. The pilot flame
should be at least 1¹⁄₂” (38mm) long. The flame should
be impinging on the pilot generator. Pilot size can be
adjusted through the pilot adjust screw. If the pilot flame
is too small and can not be adjusted through the pilot
adjust screw then there is the possibility of dirt in the
pilot orifice in which case the pilot orifice should be
cleaned or replaced.
The main burner should be allowed to operate for 15 to
20 minutes before making any adjustment to the burner.
The air shutter on the right front of the main burner
should be adjusted so that there are no orange/red
flames with dark sooty looking tips. A luminous yellow
flame with blue base is what is acceptable.
For burner air shutter settings see Air Shutter Settings
chart. (Page 42)
If there is too much primary air then the flame will be
very blue with yellow tips and smaller flame height.
If there is too little primary air then the flame will be yellow with orange/red tips on the back flames with dark
sooty elongated tips. In this condition the glass and logs
could show signs of soot accumulation within 10 to 20
minutes.
20009999
39
41DVN / DVSN Direct Vent Gas Fireplace
Unit Adjustment - 41DVDSN / 41DVDSP
Once installed, the unit should be operated at least
three (3) times to ensure that all is in working order.
NOTE: Manufacturing oils will smoke during initial firing
of appliance. Open windows for ventilation.
Before leaving, the installer should make the following
checks:
Btu Input/Gas Pressure
The fireplace input is marked on the Rating Plate. The
gas inlet pressure specified below is the pressure
where the field-installed gas line connects to the gas
control. This is measured at the inlet test port (1/8” NPT
plugged port) on the gas valve in the appliance. Ensure
that pressure is as shown in Table 1.
The manifold pressure is controlled by a regulator
built into the gas control and should be checked at the
pressure outlet test port located on the body of the gas
valve.
The pressure should be checked with the appliance
burning on high (highest setting) and all other gas appliances turned on. One must then read the manometer
and if pressures are not as specified in Table 1, then the
inlet pressure must be adjusted.
The appliance and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of the system at test pressures in
excess of 1/2 psig (3.5 KPa).
Pressure ranges are as listed below:
Gas Supply Pressure (inches w.c.)
Minimum Normal Maximum
Natural Gas 4.5” 7.0” 14.0”
LP (Propane) 10.8” 11.0” 14.0”
Manifold Pressure (inches w.c.)
Normal
Natural Gas 3.5”
LP (Propane) 10.0”
High Altitude
When installing this fireplace at an elevation between
0 and 2000 feet (0 - 610m) in the USA and 0 and 4500
feet (0 - 1370m) in Canada the input rating does not
need to be reduced.
When installing this fireplace at an elevation above
2,000 feet (in the United States), it may be necessary to
decrease the input rating by changing the existing burner orifice to a smaller size. Input should be reduced
four percent (4%) for each 1,000 feet above sea level,
unless the heating value of the gas has been reduced,
in which case this general rule will not apply. To identify
the proper orifice size, check with the local gas utility.
When installing this fireplace at an elevation above
4,500 feet (in Canada), check with local authorities.
Consult your local gas utility for assistance in determining the proper orifice for your location.
Main Burner
The main burner should be allowed to operate for 15 to
20 minutes before making any adjustment to the burner.
The air shutter on the right front of the main burner
should be adjusted so that there are no orange/red
flames with dark sooty looking tips. A luminous yellow
flame with blue base is what is acceptable.
For burner air shutter settings see Air Shutter Settings
chart. (Page 42)
If there is too much primary air then the flame will be
very blue with yellow tips and smaller flame height.
If there is too little primary air then the flame will be yellow with orange/red tips on the back flames with dark
sooty elongated tips. In this condition the glass and logs
could show signs of soot accumulation within 10 to 20
minutes.
40
20009999
Maintenance
41DVN / DVSN Direct Vent Gas Fireplace
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 vacuumed and wiped out. Remove
and replace 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.
Contact your local representative to arrange an annual
service program.
Cleaning the Standing
Pilot Control System
The burner and control system consists of
• burner tube • gas orifice
• pilot assembly • thermopile
• millivolt gas valve
Most of these components may require only an occasional checkup and cleaning and some may require
adjustment. If repair is necessary, it should be per-
formed by a qualified technician.
1. Turn off pilot light at gas valve side.
2. Let fireplace cool if it has been running.
3. Remove window frame assembly. (Refer to Window
Frame Assembly Removal section)
4. Remove logs.
5. Vacuum burner compartment especially around
orifice primary air openings.
6. Visually inspect pilot. Brush or blow away any dust
or lint accumulation.
7. Reinstall logs.
8. Ignite pilot - Refer to Lighting Instructions.
9. Reinstall window frame assembly.
To obtain proper operation, it is imperative that the pilot
and burner’s flame characteristics are steady, not lifting
or floating.
Typically, the top 3/8” or 1/2” of the thermopile should
be engulfed in the pilot flame. (Page 27, Fig. 51)
To adjust pilot burner; (by qualified service technician)
1. Remove pilot adjustment cap.
2. Adjust pilot screw to provide properly sized flame.
3. Replace pilot adjustment cap.
The primary air shutter is set at factory and should only
be adjusted, if necessary, by a qualified service technician.
20009999
Logs May Be HOT!!
41
41DVN / DVSN Direct Vent Gas Fireplace
Normal and High
Direct Vent Units - Inputs - Orifice Size - Altitude
BTU/Hr BTU/Hr Manifold Pressure Orifice 0 - 2000ft. Altitude in USA
Model Min. Input Max. Input @ Max. Orifice 0-4500ft Altitude in Canada
41DVN 20,000 30,000 3.5”w.c. #37 DMS
41DVP 19,000 27,000 10.0” w.c. #53
41DVDSN -- 30,000 3.5” w.c. #37 DMS
41DVDSP -- 27,000 10.0” w.c. #53
Conversion Kits
Change Natural Change Propane
Model to Propane to Natural
41DVN 41DVCKP - 41DVP - 41DVDSN 20007906 - 41DVDSP --
IMPORTANT: Always check for gas leaks with a
soap and water solution. Do not use open flame for
leak testing.
Air Shutter Settings
Opening
Model “A”
41DVN 1/4”
41DVP Fully Open
41DVDSN 1/4”
41DVDSP Fully Open
NOTE: These are minimum settings. Air shutter openings may be increased to prevent flame sooting.
“A”
42
20009999
41DVN / DVSN Direct Vent Gas Fireplace
2
3
4
6a
7
13
23a,b
36
35
43
44
45
48
1
1a
1c
1b
1d
5
6b
1
2
3
4
21
26
29
30
21
10
9
11
12
14
32
33
34
40
41
42
46
47
31
8b
8a
8c
19
20
CFM Corporation reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time,
without notice.
41DVN / 41DVDSN Series Gas Fireplace
Units: GFDN2L1, GFDE2L1
20009999
43
41DVN / DVSN Direct Vent Gas Fireplace
41DVN / 41DVDSN Series Gas Fireplace (continued)
Ref. Description 41DVN 41DVDSN
1. Log Set 41DV (Complete) 20007629 20007629
1a. Log Rear 20007630 20007630
1b. Log Right Twig 75318 75318
1c. Log Left Twig 75319 75319
1d. Log Front 76895 76895
2. Volcanic Rock Package (1lb. Bag) 10001454 10001454
3. Embers, Platinum 78037 78037
4. Grate Assembly 20008141 20008141
5. Burner Tube 20008634 20008634
6a. Valve Bracket 20006120 - 6b. Valve Bracket -- 20008128
7. Manifold Assembly 20008432 20008432
8a. Refractory Lining Right 10006310 10006310
8b. Refractory Lining Left 10006309 10006309
8c. Refractory Lining Rear 10006308 10006308
9. Glass Door Assy 20008096 20008096
10. Clamp Frame Window 54174 54174
11. Louvre Assembly Top 10000039 10000039
12. Louvre Assembly Bottom 10000040 10000040
13. Bottom Louvre Hinge 52356 52356
14. Deflector Top 54364 54364
15. Orifice Burner - #37 Nat. (not shown) 20008277 20008277
16. Orifice Burner - #52 LP (not shown) 78625 78625
17. Switch Rocker 53606 53606
18. Switch ON/OFF 51842 51842
19. Valve - White-Rodgers 25M -- 78581
20a. Valve - SIT 820 - Nat. 52677 - 20b. Valve - SIT 820 - LP 52678 --
21. Pilot Assembly - SIT Top Conv. - Nat. (3 way) 76261 - 22a. Pilot Orfice - Nat. (not shown) 76262 - 22b. Pilot Orifice - LP (not shown) 76263 --
23. Spark Electrode w/Wire (not shown) -- 72935
24. Flexible Gas Line w/Shutoff (not shown) 20002500 20002500
25. Pilot Tube 1/8” x 24” Long w/Fittings (SIT Pilot) (not shown) 10001296 --
26. Thermocouple - RN/RP 53373 --
27. Rep. Reg. Assembly (SIT) LP HI/LO 82979 (not shown) PCOB068 PCOB068
28. Rep. Reg. Assembly (SIT) Nat. HI/LO 86354 (not shown) PCOB069 PCOB069
29. Thermopile - RN/RP 51827 --
30. Hood Pilot 3 Way 10002385 --
31. Ignitor Piezo w/Nut SIT 52464 --
32. Fan w/Bracket (FK24) 54103 54103
33. Electrical Cord (6ft.) 51865 51865
34. Fan Temperature Sensor 51704 51704
35. Speed Control 51738 51738
36. Speed Control Knob 51882 51882
37. Remote ON/OFF Switch Kit (not shown) 53875 53875
38. Electronic Control Module (not shown) 20007288 20007288
44
20009999
41DVN / DVSN Direct Vent Gas Fireplace
41DVN / 41DVDSN Series Gas Fireplace (continued)
Ref. Description 41DVN 41DVDSN
39. Wire Harness (not shown) -- 77034
40. Firestop 52523 52523
41. Zero Clearance Sleeve 54623 54623
42. Plate Cover Air Inlet w/7” Collar Assy. 10002766 10002766
43. Gasket Plate Air Inlet 10002449 10002449
44. Plate Cover Flue Products 10002298 10002298
45. Gasket Plate Cover Flue Products 10002233 10002233
46. Plate Flue Pipe Assy. 10004933 10004933
47. Gasket Plate Cover Flue Pipe 10002237 10002237
48. Refractory Bay Window 10000506 10000506
Fuel Conversion Kits
Conversion Kit, Natural Gas to LP
41DVN Kit #41DVCKP
41DVDSN Kit #2007906
20009999
45
41DVN / DVSN Direct Vent Gas Fireplace
Black
White
Ground
H
I
L
O
O
F
F
O
N
O
F
F
P
I
L
O
T
O
F
F
E
A
P
I
L
O
T
T
P
T
H
Optional Accessories Available
Fan Kits
FK12 Fan Assembly
1. Open louvre assembly bottom.
2. Install FK12 fan in back of unit between hearth sup
ports. (Fig. 62)
3. Secure fan on velcro strips.
4. Power to the fan can be supplied by plugging the
supply lead into a conveniently located wall socket
or by using a hard-wired EB-1 connector box.
5. Be sure fan motor does not touch hearth supports.
Side View
Front of
Unit
Hearth Pan
Fig. 62 FK12 Fan Kit placement.
Base Pan
Cold Air Box
FK12 Fan
FP1004
FK24 Fan Assembly
Method A
Route the 6’ (1.8m) lead fitted to the unit to a conve
-
niently located wall socket.
Method B
If the EB-1 receptacle box (Pt. #ZA1200) was cor-
-
rectly connected when the unit was installed, the
fan lead can be directly plugged into the EB-1 plug
socket.
5. Whether wiring directly to the fan junction box (Option A) or into the EB1 (electrical box, Option B) first
ensure cable is secured using box connector.
The fireplace, when installed must be elec
trically connected and grounded in accordance with local codes, with the current
CSA C22.1 Canadian Electrical Code or for
US installations, follow local codes and
the National Electrical Code, ANSI/NFPA
No. 70.
Hard (Direct) Wire Hook Up
First connect ground wire to ground stud located on
the base of either box. Black wire from supply should
connect to the variable speed switch. Alternate speed
switch wire connects to temperature sensor. Alternate
lead from sensor connects to fan. Alternate fan lead
connects back to the white supply wire. (Fig. 65)
Any electrical rewiring of this fan must be
completed by a qualified electrician.
Turn off all power before hook up.
Fan specifications: 120 volt, 60 Hz, .75 Amp.
This fan does not need regular maintenance, however
periodic cleaning is required. Check the area under the
control door and in front of the fan and wipe or vacuum
at least once a month during the operating season.
Should this fan require servicing, the power supply must
be disconnected.
The FK24 comes with the electrical cord attached.
1. Slide fan assembly from the left side into the fire
place opening, line up mounting holes with screw
studs on back of fireplace and fasten with #10 - 24
hex nuts. (Fig. 63)
2. Install thermal sensor on bottom of firebox using #10
- 24 hex nuts.
3. (Option A) - Place electronic fan speed control box
on bottom of fireplace base, lining up mounting holes
with screw studs. Fasten fan speed control box with
#10 - 24 hex nuts.
(Option B) - The speed control can be installed in an
electrical box at normal wall switch height for convenient access.
4. The power supply may be connected in 2 ways:
46
Electrical
Box
Fan Speed
Switch
Fig. 63 FK24 fan placement.
Temperature
Sensor
Speed
Control
Fig. 64 FK24 fan wiring.
Heat Sensor
Gas
Line
Fan
Valve
FP1026
Fan
FP1025
20009999
41DVN / DVSN Direct Vent Gas Fireplace
Remote ON/OFF Switch
The optional ON/OFF Switch Kit (53875) allows the fireplace to be turned on or off from a remotely located wall
switch. Installation instructions begin on Page 8.
Remote Controls
Optional remote control units are available to control
different functions of the appliance.
Model Functions Controlled
RC1 ON/OFF
RC2 ON/OFF and Temperature
IMTFK Wall mounted thermostat control
Ceramic Refractory Panels
Ceramic refractory panels are available to line the firebox area.
Unit Kit Model
41DV DV360CR
Take care when handling the refractory
panels as they are fragile until held in
place and supported.
Installation Instructions
1. Remove window frame assembly and logs.
2. Remove three (3) screws securing heat shield to
combustion dome. (Fig. 65)
3. Place rear ceramic panel in back of unit.
4. Place side panels.
5. Replace heat shield, logs and window frame assembly.
Heat Shield
Section A
Heat
Shield
Decorative Bay Windows
Installation
Remove the existing louvre assembly top.
Assemble the Bay Window Kit according to the instructions supplied with the kit. (Fig. 66)
Upper Grille Assembly
Ceramic
Refractory
Window Assembly
Base Grille Assembly
Fig. 66 Bay window.
Ceramic
Refractory
FP1194
Decorative Frame Trim
A selection of decorative frame trim kits are available
for mounting around the outside of the appliance to enhance its visual effect on the room. Installation instructions for each decorative frame trim are included with
the frame trim kit. Contact your authorized distributor for
details of the trim kits and ordering information for the
trim kits applicable to this model appliance.
Fig. 65 Heat shield.
20009999
(3)
Screws
Side View
Section A
H103
47
41DVN / DVSN Direct Vent Gas Fireplace
Limited Warranty
TEMCO Fireplace Products Direct Vent Gas Fireplaces
This warranty is limited to CFM Fireplace Products
Direct Vent Gas Fireplaces (henceforth, Product) manufactured by CFM Corporation (henceforth, CFM).
ONE YEAR WARRANTY
CFM warrants all components of the Product to be free
of defects in materials and workmanship for a period of
one year from the date of installation, with the exception
of the warranty on logs and ember base. If, by the sole
determination of CFM, any component covered under this
warranty is found to be defective, CFM will, at its option,
repair or replace the defective component at no charge
and will pay labor cost incurred as specified in the current
CFM Labor Allowance Schedule, 71313. If CFM determines replacement or repair is not economically practical,
CFM will, at its option, refund the purchase price of the
Product. Date of installation and purchase price must be
verified by acceptable proof of purchase.
This warranty covers only parts and labor as provided
above. In no case shall CFM be responsible for materials,
components or construction which are not manufactured
or supplied by CFM, or the labor necessary to install,
repair or remove such materials, components or construction.
NOTE: If allegedly defective components need to be returned by CFM in connection with the above warranties,
frieght or postage charges must be prepaid.
QUALIFICATIONS
For the above warranties to apply:
The Product must be installed by a qualified installer,
preferebly NFI or WETT (Canada) certified; strictly in
accordance with CFM installation instructions, and
in compliance with local codes and ordinances. The
logs must be placed strictly in accordance with the arrangement described in the installation instructions.
The Product must be operated and maintained according
to the instructions furnished. Alteration of the Product
in any way is prohibited and voids any and all warranties. Removal of the data plate alters the Product
and voids the warranty.
The installer must have completed the installation
and Startup Checklist, a copy of which must be
submitted along with proof of purchase, to obtain
prior approval for warranty repair or replacement and
to affect a warranty claim. The Checklist is found on
Pages 49 and 50 of this manual.
The limited warranty applies only to the original owner of
the Product or the original owner of the dwelling in which
the Product was installed. Use of any parts other than
genuine factory provided replacement parts shall void this
warranty.
Limitations
CFM is not responsible for any incidental or consequen-
tial damages caused by possible defects in the Product.
The duration of any implied warranty with respect to the
Product is limited to the duration of the foregoing warranties.
CFM is not responsible for any warranty repair (material
or labor) for defects created by improper field conversions.
Some states and provinces do not allow exclusion of incidental or consequential damages or limits on the duration
of implied warranties, so these limitations may not apply
to you.
Warranty Fulfillment
Claims require specific agreement and consent from
CFM Technical Services prior to performing any warranty repair or replacement. CFM reserves the right to
investigate any and all warranty claims. The appliance
must not be removed prior to such investigation other
than on direction from CFM.
Please provide the following information when communicating with CFM Technical Services, its Dealers or
Distributors regarding service under this warranty.
CFM reserves the right to decide on the method of settlement (if any). This limited warranty is given in lieu of any
other expressed or implied warranty, and supersedes all
other CFM Product warranties.
Model Number: ____________________
Serial Number: _____________________
Date of Installation: ____/____/____
Purchased From: ___________________
48
20009999
41DVN / DVSN Direct Vent Gas Fireplace
TEMCO FIREPLACE PRODUCTS DIRECT VENT FIREPLACES
INSTALLATION AND STARTUP CHECKLIST
Customer Copy
NOTE: TEMCO Fireplace Products gas logs and fireplaces require installation by a qualified gas appliance installer.
A copy of this checklist must be submitted, along with proof of purchase, when applying to Technical Services for prior
written approval of warranty repair or replacement.
❑ Read and understand installation instructions before attempting installation.
Verify CORRECT FUEL TYPE
❑ Check carton model number.
❑ Check fireplace label. Models ending in N are for natural gas; those ending in P are for propane (LP gas).
WARNING: Using the incorrect fuel can create a serious fire hazard and will void the warranties. Install in
accordance with local and/or natonal codes and ordinances. Follow the TEMCO installation instructions.
❑ Supply service shutoff valve upstream of gas fireplace.
❑ Gas line size adequate for input rating (BTU’s per hour) of fireplace, per National Fuel Gas Code (NFPA54)
in the case of USA installations or Installation Code CAN 1-149 in the case of Canadian installations.
Make following checks:
❑ Gas line integrity at supply line connection.
❑ Glass front panel position.
❑ Correct gas pressure. Inlet Pressure __________(inches w.c.) Manifold Pressure __________(inchesw.c.)
❑ Piezo ignitor function (millivolt control models only).
❑ Pilot ignition.
❑ Main burner ignition.
❑ Proper flame pattern and color.
❑ Positioning of logs (in accordance with instructions).
❑ Clearances to combustibles (vent, framing, mantels, etc.).
❑ Vent system in compliance with instructions. All joints and connections sealed.
❑ Wall switch operation. Do not connect millivolt wiring, wall switch or valve to 120v line voltage unless units is
specifically DSI equipped.
❑ Demonstrated proper operating procedure to homeowner.
❑ Explained the need for proper cleaning and maintenance.
❑ Check all fittings and connections for gas leaks, correct if necessary.
Please sign below that checklist has been completed and understood. DATE INSTALLED ____/____/____
Installer Phone Consumer Phone
20009999
49
41DVN / DVSN Direct Vent Gas Fireplace
TEMCO FIREPLACE PRODUCTS DIRECT VENT FIREPLACES
INSTALLATION AND STARTUP CHECKLIST
Installer’s Copy
NOTE: TEMCO Fireplace Products gas logs and fireplaces require installation by a qualified gas appliance installer.
A copy of this checklist must be submitted, along with proof of purchase, when applying to Technical Services for prior
written approval of warranty repair or replacement.
❑ Read and understand installation instructions before installing.
Verify CORRECT FUEL TYPE
❑ Check carton model number.
❑ Check fireplace label. Models ending in N are for natural gas; those ending in P are for propane (LP gas).
WARNING: Using the incorrect fuel can create a serious fire hazard and will void the warranties. Install in
accordance with local and/or national codes and ordinances. Follow the TEMCO installation instructions.
❑ Supply service shutoff valve upstream of gas fireplace.
❑ Gas line size adequate for input rating (BTU’s per hour) of fireplace, per National Fuel Gas Code (NFPA54) in
the case of USA installations or Installation Code CAN 1-149 in the case of Canadian installations.
Make following checks:
❑ Gas line integrity at supply line connection.
❑ Glass front panel position.
❑ Correct gas pressure. Inlet Pressure __________(inches WC) Manifold Pressure __________(inchesWC)
❑ Piezo ignitor function (millivolt control models only).
❑ Pilot ignition.
❑ Main burner ignition.
❑ Proper flame pattern and color.
❑ Positioning of logs (in accordance with instructions).
❑ Clearances to combustibles (vent, framing, mantels, etc.).
❑ Vent system in compliance with instructions. All joints and connections sealed.
❑ Wall switch operation. Do not connect millivolt wiring, wall switch or valve to 120v line voltage unless units is
specifically DSI equipped.
❑ Demonstrated proper operating procedure to homeowner.
❑ Explained the need for proper cleaning and maintenance.
❑ Check all fittings and connections for gas leaks, correct if necessary.
Please sign below that checklist has been completed and understood. DATE INSTALLED ____/____/
____
Installer Phone Consumer Phone
50
20009999
Customer Copy
41DVN / DVSN Direct Vent Gas Fireplace
Model # ______________________________________
I certify that I have followed all codes and regulations and adhered to the TEMCO Fireplace Products installation
instructions. I have completed the proper installation and startup checklist.
Serial # ______________________________________
Installer’s Signature Print Installer’s Name
Purchaser _____________________________________
Address ______________________________________
_____________________________________________
Phone ________________________________________
Retailer _______________________________________
Address ______________________________________
_____________________________________________
Phone ________________________________________
Date of Purchase _______________________________
Please cut along dotted line
WARRANTY REGISTRATION
Please answer the following questions (Check Box):
1. Type of Home ❑ Single Family ❑ Duplex ❑ Apt.
❑ Mobile Home ❑ Cabin/Vacation
2. Installed in(Room) ❑ Living ❑ Family ❑ Great ❑ Rec
❑ Bedroom ❑ Other
3. Other Choices Considered: ❑ Vented Decorative Gas
Log/Fireplace ❑ Woodburning Fireplace
❑ Gas Insert ❑ Woodburning Insert
❑ Direct-Vent Gas Fireplace/Logs
4. Why did you choose Direct Vent? (Rank in order of
importance: 1-6)
___ Appearance ___ Location Flexibility
___ Builder Decided ___ Other
To register your warranty, please provide the information indicated on this form and mail it to:
CFM Corporation
Attn: Warranty Registration
2695 Meadowvale Blvd.
Mississauga, Ontario Canada L5N 8A3
Model # ______________________________________
I certify that I have followed all codes and regulations and adhered to the TEMCO installation instructions. I have
completed the proper installation and startup checklist.
Serial # ______________________________________
Installer’s Signature Print Installer’s Name
Purchaser _____________________________________
Address ______________________________________
_____________________________________________
Phone ________________________________________
Retailer _______________________________________
Address ______________________________________
_____________________________________________
Phone ________________________________________
Date of Purchase _______________________________
WARRANTY REGISTRATION
Please answer the following questions (Check Box):
1. Type of Home ❑ Single Family ❑ Duplex ❑ Apt.
❑ Mobile Home ❑ Cabin/Vacation
2. Installed in(Room) ❑ Living ❑ Family ❑ Great ❑ Rec
❑ Bedroom ❑ Other
3. Other Choices Considered ❑ Vented Decorative Gas
Log/Fireplace ❑ Woodburning Fireplace
❑ Gas Insert ❑ Woodburning Insert
❑ Direct-Vent Gas Fireplace/Logs
4. Why did you choose Direct Vent? (Rank in order of
importance: 1-6)
___ Appearance ___ Location Flexibility
___ Builder Decided ___ Other
20009999
51
Efficiency Ratings
Model EnerGuide Ratings
Fireplace Efficiency (%)
41DVN 53
41DVP 53
41DVDSN 64.7
41DVDSP 64.7
CFM Corporation
2695 Meadowvale Blvd. • Mississauga, Ontario, Canada L5N 8A3
800-668-5323 • www.cfmcorp.com
Loading...