Vermont Casting NVC36, NVC43, NVC39 User Manual
Decorative Gas Appliance
CER TIFI ED
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Models: NVC36, NVC39, NVC43
INSTALLER/CONSUMER
SAFETY INFORMATION
PLEASE READ THIS MANUAL
BEFORE INSTALLING AND USING
APPLIANCE
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.
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. Do
not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
FOR YOUR SAFETY
If you smell gas:
Installation and Homeowners
Operating Instructions
• Do not touch electrical switches.
• Do not try to light any appliance.
• Do not use the phone in your building.
• Immediately call your gas supplier from
a neighbor's phone.
• Follow your gas supplier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
20000194 9/06 Rev. 6
NVC Series B-Vent
Table of Contents
Thank you and Congratulations on your purchase of a
CFM Corporation fireplace.
PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THE APPLIANCE
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 Instructions ................................................................................................................3
Installation & Operating Instructions ....................................................................................
Fireplace Dimensions ..........................................................................................................
Clearance to Combustibles .................................................................................................
Mantels ...............................................................................................................................
Hearth ...............................................................................................................................
Framing and Finishing .........................................................................................................
Final Finishing .....................................................................................................................
Gas Specifications ...............................................................................................................
Gas Inlet & Manifold Pressures ...........................................................................................
High Elevations ...................................................................................................................
Gas Line Installation ............................................................................................................
Remote Switch Installation ..................................................................................................
Alternate Switch Location ....................................................................................................
EB-1 Electrical Box ..............................................................................................................
Install Venting System, Flashing and Termination ...............................................................
Operating Instructions
Glass Information ..............................................................................................................
General Maintenance ........................................................................................................
Louvre Removal ................................................................................................................
Window Frame Assembly Removal ...................................................................................
Glass Cleaning ..................................................................................................................
Log Installation .................................................................................................................. 11
Lava Rock, Ember Material Placement ............................................................................. 11
Flame Adjustment .............................................................................................................. 11
Flame Characteristics ........................................................................................................ 11
Inspecting the Venting System ..........................................................................................
Test Chimney Draw ...........................................................................................................
First Firing .........................................................................................................................
Lighting and Operating Instructions ...................................................................................
Vent Safety Switch ............................................................................................................
Electrical Connection .........................................................................................................
Troubleshooting .................................................................................................................
Maintenance
Cleaning the Standing Pilot Control System .....................................................................
Replacement Parts
Part Pictorial ......................................................................................................................
Parts List ...........................................................................................................................
Optional Accessories
Fan Kits 22
Wiring Instructions .............................................................................................................
Remote Controls ...............................................................................................................
Ceramic Refractory Panels ...............................................................................................
Arched Door Kit .................................................................................................................
Decorative Bay Windows ..................................................................................................
EB-1 Receptacle Box ........................................................................................................
Decorative Frame Trims ....................................................................................................
3
4
5
5
5
6
6
6
6
6
7
7
7
8
8
10
10
10
10
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12
13
14
14
15
18
19
20
22
23
23
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24
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20000194
Installation & Operating Instructions
This gas appliance should be installed by a qualified
installer in accordance with local building codes and
with current CSA-B149.1 Natural Gas and Propane Installation Code. 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.
In the Commonwealth of Massachusetts, all gas fitting
and installation of this heater shall only be done by a
licensed gas fitter or licensed plumber.
FOR SAFE INSTALLATION AND OPERATION
PLEASE NOTE THE FOLLOWING:
1. This appliance 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 appliance and should
stay away to avoid burns or ignition of clothing.
3. Children should be carefully supervised when they are in
the same room as your appliance.
4. Under no circumstances should this appliance be modified. Parts having to be removed for servicing should be
replaced prior to operating this appliance again.
5. Installation and any repairs to this appliance should be
carried out by a qualified service person. A professional
service person should be contacted to inspect this appliance annually. Make it a practice to have all of your gas
appliances 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
appliance should be kept clean and free of dust and lint.
Make sure that the gas valve and pilot light are turned off
before you attempt to clean this unit.
7. The venting system (chimney) of this appliance should be
checked at least once a year and if needed your venting
system should be cleaned.
8. Keep the area around your appliance clear of combustible
materials, gasoline and other flammable vapor and liquids.
This appliance should not be used as a drying rack for
clothing, nor should Christmas stockings or decorations be
hung in the area of it.
9. Under no circumstances should any solid fuels (wood,
coal, paper or cardboard etc.) be used in this appliance.
10. The flow of combustion and ventilation air must not be
obstructed in any way.
11. Whether the appliance is installed directly on carpeting,
vinyl tile or any combustible material other than wood,
this appliance must be installed on a metal or wood panel
extending the full width and depth of the appliance.
12. This appliance requires adequate ventilation and combus
tion air to operate properly.
NVC Series B-Vent
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.
The appliance and its individual shutoff valve must be discon
nected from the gas supply piping system during any pressure
testing of that system at test pressures in excess of 1/2 psig
(3.45 kPa).
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
indicated on the rating plate. This appliance is not
convertible for use with other gases, unless a certified
kit is used.
WARNING: Check with your electronics manufactur
-
er before installing a television or other electronic
device above this fireplace.
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 gas fireplace to give off
some odor the first time it is burned. This is due to
the curing of the paint and any undetected oil used in
the manufacturing process.
Please ensure that your room is well ventilated
- open all windows.
It is recommended that your burn your fireplace for at
least ten (10) continuous hours the first time you use
it. If the optional fan kit has been installed, place the
fan switch in the “OFF” position during this time.
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
-
20000194
3
NVC Series B-Vent
A
D
N
M
N
A
BS
G
H
J
Gas Line
Access - 2" Dia.
Gas Line
Access
2" Dia.
Finished Wall
Thickness
6"
Flue
Rough
Opening
Height
Rough Opening Width
Rough
Opening
Depth
C
Electrical Cable
Knock-out - 1" Dia.
E
L
F
K
P
Q
R
Electrical Box
Knock-out - 2" Dia.
Electrical
Cable
Knock-out
1" Dia.
C
L
Outside
Air Access
(See inset A)
T
U V
INSET A
5"
7"
3"
10"
10" = 254mm
7" = 187mm
5" = 149mm
3" = 92mm
Fireplace Dimensions
Fig. 1 Fireplace specifications and framing dimensions.
Ref. NVC36 NVC39 NVC43
Framing Dimensions
A 36¹⁄₂" (927 mm) 39¹⁄₂" (1003 mm) 43¹⁄₂" (1105 mm)
B 34³⁄₄" (883 mm) 35" (889 mm) 37¹⁄₂" (953 mm)
C 14
D 36" (914 mm) 39" (991 mm) 43" (1092 mm)
E 21" (533 mm) 21" (533 mm) 23¹⁄₂" (597 mm)
F 1" (25 mm) 1" (25 mm) 1" (25 mm)
G 5
H 7
J 2" (51 mm) 2" (51 mm) 2" (51 mm)
K 20" (508 mm) 24" (610 mm) 31" (787 mm)
L 6" (152 mm) 6¹⁄₂" (165 mm) 5³⁄₄" (146 mm)
M 47⁵⁄₈" (1210 mm) 56" (1422 mm) 62⁵⁄₈" (1591 mm)
N 33
P 24
Q 10
R 4" (102 mm) 4" (102 mm) 4" (102 mm)
S 32
T 33" (838 mm) 36" (914 mm) 40" (1016 mm)
U 34¹⁄₄" (870 mm) 34¹⁄₄" (870 mm) 37" (940 mm)
V 36¹⁄₂" (927 mm) 37¹⁄₄" (946 mm) 39¹⁄₄" (997 mm)
4
Appliance Dimensions
¹⁄₂" (362 mm) 16¹⁄₂" (419 mm) 16¹⁄₂" (419 mm)
¹⁄₂" (140 mm) 6⁵⁄₁₆" (160 mm) 5¹⁄₂" (140 mm)
³⁄₄" (197 mm) 8²¹⁄₃₂" (220 mm) 8" (203 mm)
⁵⁄₈" (854 mm) 40" (1016 mm) 44¹⁄₄" (1124 mm)
¹⁄₂" (622 mm) 28⁹⁄₁₆" (726 mm) 32" (813 mm)
³⁄₄" (273 mm) 12¹³⁄₃₂" (315 mm) 12" (305 mm)
³⁄₄" (832 mm) 32³⁄₄" (832 mm) 35¹⁄₂" (902 mm)
Appliance Dimensions
Do not install
header until
unit is in place.
20000194
Clearance to Combustibles
A B C D E
V
W
X
Y
Z
Fireplace
J
F
G
H
I
Mantel
Leg
O
N
M
L
K
Appliances
Top .......................................................... 0” (0 mm)
Bottom ..................................................... 0” (0 mm)
Side ......................................................... 0” (0 mm)
Back ........................................................ 0” (0 mm)
Perpendicular Sidewall ........................... 0” (0 mm)
Top of unit to ceiling .......................... 36” (914 mm)
Front of unit to combustibles ............. 36” (914 mm)
Venting
B-Vent ...................................................
1” (25 mm)
NVC Series B-Vent
Black
Surround
Face
CFM164
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 2a and 2b 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 a paint or lacquer to finish the mantel,
such paint or lacquer must be heat resistant to prevent
discoloration.
Side View
Side of
Combustion Chamber
CFM170
Ref. Mantel Ref. Mantel Leg From Side
Leg Depth of Comb. Opening
F 10" (254 mm) K 12" (305 mm)
G 8" (203 mm) L 10" (254 mm)
H 6" (152 mm) M 8" (203 mm)
I 4" (101 mm) N 6" (152 mm)
J 2" ( 51 mm) O 4" (101 mm)
Fig. 2b Combustible mantel leg minimum installation.
Ref. Mantel Ref. Mantel From Top
Shelf Depth of Comb. Chamber
V 10" (254 mm) A 19
W 8" (203 mm) B 17
X 6" (152 mm) C 15¹⁄₂" (394 mm)
Y 4" (101 mm) D 13
Z 2" ( 51 mm) E 11
Fig. 2a Mantel clearances.
20000194
Bottom of Door Trim
Top Louvre Assembly
Hearth
Top of
Combustion Chamber
¹⁄₂" (495 mm)
¹⁄₂" (444 mm)
¹⁄₂" (343 mm)
¹⁄₂" (292 mm)
CFM146
A hearth is not mandatory but is recommended for
aesthetic purposes. We recommend a noncombustible
hearth.
Cold climate installation recommendation: When
installing this unit against a noninsulated
exterior wall or chase, it is mandatory that
the outer walls be insulated to conform to
applicable insulation codes.
5
NVC Series B-Vent
A
B
C
Framing and Finishing
Check fireplace to make sure it is levelled
and properly positioned.
1. Choose the unit location.
2. Place the unit into position and secure it to the floor
with 1¹⁄₂” (38mm) screws, or nails. The holes to
secure the unit to floor are located just behind the
access door grille on the left and right side of the
unit.
3. Frame in the fireplace with a header across the top.
It is important to allow for the finished wall face when
setting the depth of the frame.
4. Attach the fireplace to the frame using the adjustable
frame drywall strips (located behind the access door
for shipping). Preset the depth to suit the facing
material of the wall. The strips are adjustable to 1/2”
(13 mm), 5/8” (16 mm), or 3/4” (19 mm). (Fig. 4)
5. Screw through the slotted holes in the drywall strip
and into pre-drilled holes in fireplace side. Measure
from face of fireplace to the face of the drywall strip
to confirm the final depth.
Adjustable Drywall Strip
(Nailing Flange)
Gas Specifications
Max. Min.
Model Fuel Gas Control Input Input
NVC36RN Natural Millivolt Hi/Lo 25,000 17,500
NVC36RP Propane Millivolt Hi/Lo 25,000 18,750
NVC36VN Natural 24V Hi/Lo* 25,000 17,500
NVC36NP Propane 24V Hi/Lo* 25,000 18,750
NVC36EN Natural Electronic Ignition 25,000 17,500
NVC36EP Propane Electronic Ignition 25,000 18,750
NVC39RN Natural Millivolt Hi/Lo 30,000 21,000
NVC39RP Propane Millivolt Hi/Lo 30,000 22,500
NVC39VN Natural 24V Hi/Lo* 30,000 21,000
NVC39VP Propane 24V Hi/Lo* 30,000 22,500
NVC39EN Natural Electronic Ignition 30,000 21,000
NVC39EP Propane Electronic Ignition 30,000 22,500
NVC43RN Natural Millivolt Hi/Lo 33,000 23,100
NVC43RP Propane Millivolt Hi/Lo 33,000 24,750
NVC43VN Natural 24V Hi/Lo* 33,000 23,100
NVC43VP Propane 24V Hi/Lo* 33,000 24,750
NVC43EN Natural Electronic Ignition 33,000 23,100
NVC43EP Propane Electronic Ignition 33,000 24,750
NOTE: VN and VP models are for use the PVS-1 Power
Vent System.
Gas Inlet & Manifold Pressures
Screw Drywall
Position Depths
A 1/2” / 13 mm
B 5/8” / 16 mm
C 3/4” / 19 mm
Adjustable
1/2”, 5/8” &
3/4” Spacing
Fig. 4 Adjustable drywall strip (nailing flanges).
Noncombustible materials such as brick or tile may be
extended over the edges of the face of the appliance.
Final Finishing
FP1023
DO NOT cover the window frame assembly, any
vent, louvre top assembly or louvre bottom assembly.
If a Trim Kit is going to be installed on the fireplace, the
brick or tile will have to be installed flush with the edges
of the appliance.
Natural LP
Minimum Inlet Pressure 5.5" w.c. 11.0" w.c.
Maximum Inlet Pressure 14.0" w.c. 14." w.c.
Manifold Pressure 3.5" w.c. 10.0" w.c.
NVC36 / NVC39 / NVC43
CERTIFIED To
ANSI Z21.50b-2005 / CSA 2.22b-2005
Vented Gas Fireplace Heaters
Units: B32H00, B32I00, B33A00, B33B00, B32J00,
B32K00, C32H00, C32I00, C32A00, C32B00, C32J00,
C32K00, D32H00, D32I00, D33A00, D33B00, D32J00,
D32K00
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration for elevations up to
4,500 feet (1,370m) above sea level.
For elevations above 4,500 feet (1,370m) 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 (1,370m).
6
20000194
1/2" Gas Supply
1/2" x 3/8" Shut-off Valve
3/8" Union
3/8" Nipple
3/8"
Nipple
1/2" Gas Supply
1/2" x 1/2" Shut-off Valve
1/2" Union
1/2" Nipple
1/2"
Nipple
"R" Model
Supply Line
"E" Model
Supply Line
Black
White
Ground
Fan
Temperature
Sensor
Speed
Control
Gas Line Installation
When purging gas line the fornt glass must
be removed. Purging gas lines must comply with ANSI Z223.1/NFPA 54 in USA and
CSA B149.1 in Canada.
The gas pipeline can be brought in through the right or
left side of the appliance, as well as the bottom. Knockouts are provided at convenient locations to allow for
the gas pipe installation and testing of any gas connection. It is most convenient to bring the gas line in from
the right side, as this allows fan installation or removal
without disconnecting the gas line.
The gas line connection can be made with properly
tinned 3/8" copper tubing, 1/2" rigid pipe or an approved
flex connector, then reduced to 3/8" (R Models) or 1/2"
(E Models) to the appliance. Because some municipalities have some additional local codes, it is always best
to consult your local authority and the CSA-B149.1
installation code.
For US installations consult the current National Fuel
Gas Code, ANSI Z223.1/NFPA 54 .
Always check for gas leaks with a mild
soap and water solution applied with a
brush no larger than 1" (25mm). Never
aply 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.
The 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 so that gas line can
be easily disconnected for burner or fan servicing. Refer to gas specification for pressure details and ratings.
NOTE: If flex connector is used, it must be kept inside
of the appliance. (Fig. 5)
1. Thread wire through the electrical knockout located
on either side of unit. Do not cut wire or insulation on
metal edges. Ensure that wire is protected. Run the
other end to a conveniently located wall receptacle
box.
2. Attach wire to switch and install switch into receptacle
box. Attach cover plate to switch.
3. Connect wiring to gas valve. (Figs. 19 or 20, Page
14)
20000194
Remote Switch Installation
NVC Series B-Vent
FP413
Fig. 5 Typical gas supply installation.
FP394
Fig. 6 Wiring diagram.
Alternate Switch Location
Remote switch can be installed on either side of the access door. Simply mount the switch to the switch bracket
provided. Screw the bracket on either side of the frame,
lining up the screws with the pre-punched holes. (Fig. 7)
Pre-punched
Holes
FP381
Fig. 7 Installing remote switch bracket.
7
NVC Series B-Vent
Outside
Electrical Box
Front of Unit
Inside
Front of Unit
Retaining Screw
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.
The EB-1 Electrical junction box has been supplied
standard on the DVRT 36/39/43 models to allow for the
easy installation of an optional fan kits
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. 8) 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. 8)
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 sup
ply power to the FK12 or FK24 fan kits if fitted.
.
FP580
Fig. 8 EB-1 receptacle.
Install the Venting System,
Flashing and Termination
Refer to venting installation instructions provided by the
B-Vent manufacturer.
Refer to Figure 1, Page 3 to locate chimney center line
dimension from a combustible back wall.
• Minimum vertical chimney height — 12' (3.65 m)
• Maximum vertical height — 40' (12 m)
• Minimum height with two elbows — 12' (3.65 m)
• Elbow requirements allow a maximum of two 90°
elbows or four 45° elbows per installation. (Two
45° elbows = One 90° elbow.) See venting chart
for proper elbow offset runs.
For firestop positioning, refer to Figure 9. Only one (1)
-
firestop required per frame.
required at the roof.
NOTE: A firestop is not
8
20000194
NVC Series B-Vent
Ceiling Installation
Attic Installation
Firestop position when area above ceiling is an attic.
Firestop position when area above ceiling is NOT an attic.
(Firestop/draftstop
appearances may
vary. Only 1 firestop
required per frame.)
Firestop
Spacer
Nails (4)
Joist
Venting Runs
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
8 9 10 11 12
3 4 5 6 7
Horizontal Run (in feet)
Vertical Run (in feet)
(Measured from floor of unit tocenter of horizontal vent pipe.)
A
A: Vertical installations up to 40 feet (12m) in
height. Up to a 8 ft. horizontal vent run can be
installed within the v
ent system using a
maximum of two 90-degree elbo
ws or four
45-degree elbows.
B: Vertical installations up to 40 feet (12m) in
height. Up to a 12 ft. horizontal vent run can be
installed within the v
ent system using a
maximum of two 45-degree elbows.
B
= Acceptable venting configuration
= Unacceptable venting configuration
Fig. 9 Firestop/draftstop positions.
FP384
FP567a
Table 1 Venting configurations.
20000194
9
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