INSTALLER / CONSUMER
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.
Jefferson
Direct Vent/Natural Vent
Gas Heater
Model: JDVBRN
FOR YOUR SAFETY
Installation and service must be
performed by a qualified installer,
service agency or the gas suppler.
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 supplier’s 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
This appliance may be installed in an
after market permanently located
manufactured (mobile) home where not
prohibited by local codes.
S
G
N
E
D
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.
CERTIFIED
C
E
D
R
E
I
T
I
F
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
30004177 2/08 Rev. 1
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Installation & Operating Instructions
The Jefferson Direct Vent/Natural Vent Room Heater, Model No.
JDVBRN, is a vented gas appliance listed to the ANSI standard
Z21.88-2005 and CSA-2.33-2005 for Vented Room Heaters,
and CSA 2.17-M91, Gas-Fired Appliances For Use at High
Altitudes.
The Jefferson Direct Vent/Natural Vent Room Heater, when
installed, must be electrically grounded in accordance with lo-
cal codes or, in the absence of local codes, with the National
Electrical Code ANSI/NFPA 70, (latest edition), or of the current
Canadian Electrical Code C22.1.
Due to high temperatures this appliance should be located
out of traffic and away from furniture and draperies.
WARNING: This appliance is hot while in operation. Keep
children, clothing, and furniture away. Contact may cause
burns or ignition of combustible materials.
Children and adults should be alerted to the hazards of high
surfacetemperaturesandshouldstayawaytoavoidburnsor
clothing ignition. Young children should be carefully super-
vised when they are in the same room as the appliance.
The installation of the Jefferson Direct Vent/Natural Vent Room
Heater must conform with local codes, or in the absence of local
codes, with National Fuel Gas Code,ANSI Z223.1/NFPA54 — lat-
est edition and CSA B-149.1 Installation Code. (EXCEPTION:
Do not derate this appliance for altitude. Maintain the manifold
pressure at 3.5 inches w.c. for Natural Gas and 10 inches w.c.
for LP gas at maximum input.)h 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.
Installation and replacement of gas piping, gas utilization
equipmentoraccessories,andrepairandservicingofequip-
mentshallbeperformedonlybyaqualifiedagency,preferably
NFIorWETT(Canada)certified. Theterm“qualifiedagency”
means any individual, firm, corporation, or company that
either in person or through a representative is engaged in
and is responsible for (a) installation or replacement of gas
piping, or (b), the connection, installation, repair, or servic-
ing of equipment, who is experienced in such work, familiar
with all precautions required, and has complied with all the
requirements of the authority having jurisdiction.
The Jefferson Direct Vent/Natural Vent Room Heater should
be inspected before use and at least annually by a qualified
service agency. It is imperative that control compartments,
burners, and circulating air passageways of the appliance
be kept clean.
The Jefferson Direct Vent/Natural Vent Room Heater and its
individual shut-off valve must be disconnected from the gas
supply piping during any pressure testing of that system at test
pressures in excess of 1/2 psig (3.5 kPa).
The Jefferson Direct Vent/Natural Vent Room Heater must be
isolated from the gas supply piping system by closing its individual
manual shutoff valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than 1/2 psig.
Clothing or other flammable materials should not be placed
on or near the appliance.
Any safety screen, glass or guard removed for servicing
an appliance must be replaced prior to operating the ap-
pliance.
The appliance area must be kept clear and free from com-
bustible materials, gasoline, and other flammable vapors
and liquids.
The flow of combustion and ventilation air must not be ob-
structed.Theinstallationmustincludeadequateaccessibility
and clearance for servicing and proper operation.
WARNING: Do not operate the Room Heater with the glass
panelremoved,crackedorbroken.Replacementofthepanel
should be done by a licensed or qualified service person.
Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system and
any gas control which has been under water.
Do not burn wood, trash or any other material for which this
appliance was not designed. This appliance is designed to
burn either natural gas or propane only.
This gas appliance must not be connected to a chimney flue
serving a separate solid-fuel burning appliance.
CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper and
dangerous operation.
An accessible tap is located above the pilot/On-Off knob for
checking the inlet pressure.
‘Direct Vent’ describes a sealed combustion system in which
incoming outside air for combustion and outgoing exhaust enter
and exit through two separate concentric passages within the
same sealed vent system. The system does not use room air
to support combustion. The Direct Vent system permits the gas
appliance to be vented directly to the outside atmosphere through
the side of the house or vertically through the roof. Conventional
venting systems (Natural Vent) take air from the room for com-
bustion and vent the exhaust vertically through the roof to the
atmosphere.
Verify proper operation after servicing.
* Aftermarket: Completion of sale, nor for purpose of resale, from the
manufacturer.
Jefferson Direct Vent/Natural Vent
Certified to:
ANSI Z21.88-2005 / CSA 2.33-2005
Vented Gas Fireplace Heaters
This appliance is approved for bedroom installations in the U.S.
and Canada. Check local codes for natural vent requirements.
This appliance may be installed in an aftermarket* manufactured
(mobile) home, where not prohibited by state or local codes.
WARNING: Operation of this heater when not connected to a
properly installed and maintained venting system can result
in carbon monoxide (CO) poisoning and possible death.
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 Cali-
fornia to cause cancer, birth defects and other reproductive
harm.
California Health & Safety Code Sec. 25249.6
30004177
3
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Installation & Operating Instructions
Inspection
Requirements for the Commonwealth of
Massachusetts
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.
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:
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
Installation of Carbon Monoxide Detectors
• 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.
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 horizontal 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.
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:
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.
• Detailed instructions for the installation of the venting
system design or the venting system components;
and
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.
• 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:
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.
• The referenced “special venting system” instructions
shall be included with the appliance or equipment
installation instructions; and
Signage
A metal or plastic identification plate shall be
• 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.
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”.
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.
44
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Jefferson Direct Vent/Natural Vent Stove Dimensions
See Page 6 for Flue Collar
Centerline Dimensions.
28���"
(724 mm)
Valve
Inlet
C
L
3"
(76 mm)
24"
(610 mm)
14���"
(368 mm)
8"
(203 mm)
4188
Fig. 1 Jefferson dimensions.
Attention
The Jefferson stove is shipped from the factory as a Direct Vent Gas Heater. This heater may be converted
into a Natural Vent unit in the field. If a Natural Vent Heater is desired, the CFM Corporation Z31B00 FSD-
HAG Draft Hood must be directly installed to the top of the unit according to the installation instructions.
The Draft Hood Adapter is available in the 7FSDHASK stove kit or as a separate item.
When the Jefferson stove is converted to Natural Vent, it uses 4” vent pipe. For aesthetic purposes the
CFM direct vent system may be used up to the ceiling.
30004177
5
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Installation Requirements
The installation must conform with local codes or, in
the absence of local codes, with the National Fuel Gas
Code, ANSI Z223.1/NFPA 54 - latest edition. (EXCEP-
TION: Do not derate this appliance for altitude. Main-
tain the manifold pressure at 3.5” w.c. for Natural Gas,
and 10” w.c. for Propane).
Direct Vent System Only
A
D
In Canada, installation must be in accordance with the
current CSA B-149.1 Installation Codes and/or local
B
C
codes.
The installation should be done by a qualified
service person, preferably NFI or WETT (Canada)
certified who is familiar with the building codes and
installation techniques appropriate for your area to
accomplish a safe and effective installation.
E
D. Cross Corner
E. Flat on wall
A. Flat on corner wall
B. Room Divider
C. Island
Your dealer or your local gas supplier will be able to
refer a qualified service person.
ST207a
WARNING: Due to high temperatures, the
HEATER should be located out of traffic and
away from furniture and draperies.
Fig. 2 Possible stove locations.
Clearance Requirements
The surface of the Heater Is hot when it is in use.
Young children should be watched carefully when
they are in the same room when the Heater is in
use, and they should be taught to avoid the hot
surface. Keep any objects that can burn well away
from the Heater, and observe the recommended
clearances that follow.
Minimum Clearances to Combustible Materials
Measure side clearances as shown in Figures 3 and 4
from the outer edge of the cast iron stove top. Measure
rear clearances from the outermost surface of the steel
rear skirt.
The Jefferson heater is approved for installation into
an alcove constructed of combustible materials to the
dimensions and clearances shown on the next page.
�
�������
��������������
������������
The same clearances apply in a standard parallel instal-
lation.
������������������
�������������
��������������������
���������������
WARNING:
• Always maintain required clearances
(air spaces) to nearby combustibles
Locating The Stove
to prevent fire hazard. Do not fill air
spaces with insulation. All venting components
must maintain a 1” (25 mm) clearance to com-
bustible materials. Maintain a 6” (150 mm) clear-
ance when using single wall pipe.
• The gas appliance and vent system must be
vented directly to the outside of the building
and never be attached to a chimney serving a
separate solid fuel or gas-burning appliance.
In choosing a location for the stove, consider:
• The location of outside walls;
• Where additional heat is needed:
• Where family members gather most often;
• The vent system requirements.
NOTE: We do not recommend the use of wallpaper
next to this stove. Over time, radiant heat may cause
the wallpaper to shrink, or may adversely affect the
binders in the wallpaper adhesive.
• Refer to the manufacturer’s instructions includ-
ed with the venting system for complete instal-
lation procedures.
66
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Parallel Installation:
Minimum Clearance and Flue Centerline,
Direct Vent and Natural Vent
Wall Centerline from Floor
C
L
C
A
D
A
C
L
B
ST131a
Stove Clearances
Pipe Centerlines
A: 4” (102 mm)
B: 4” (102 mm)
C: 14¹⁄₂” (369 mm)
D: 9” (229 mm)
Effective Minimum
Wall Thimble
Centerline
58¹⁄₄” (1480 mm) (CFM Pipe)
54³⁄₄” (1378 mm) (Simpson Duravent Pipe)
ST128a
Fig. 5 Minimum wall thimble centerline.
Fig. 3 Parallel installation, minimum back and side clear-
ances and flue centerlines.
Wall and Ceiling Clearances
D
Corner Installation: Minimum Clearance and
Flue Centerline, Direct Vent & Natural Vent
B
B
C
A
A
B
ST101a
A: Rear Wall
4” (102 mm)
B: Min. Clearance
43¹⁄₂” (1105 mm)*
72” (1830 mm)*
48” (1220 mm)
4” (102 mm)
C: Min. Alcove Height
D: Max. Alcove Depth
Sidewall clearance
A
* needed for installing DuraVent Minimum Vent Kit #2792
or CFM Minimum Vent Kit #7TFSDVSK
Fig. 6 Dimensions and clearances to ceiling or alcove.
Stove Clearance
Pipe Centerline
A: 4: (102 mm)
B: 14³⁄₄” (375 mm)
Hearth Requirements
ST129b
Fig. 4 Corner installation, minimum corner clearance and flue
centerline.
The Jefferson Heater must be installed on rigid flooring.
When the heater is installed directly on any combustible
surface other than wood flooring, a metal or wood panel
extending the full width and depth of the unit must be
used as the hearth. There are no other hearth require-
ments.
30004177
7
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Horizontal Termination -
Direct Vent ONLY
Gas Specifications
Max.
Min.
Input
Input
The vent must rise vertically a minimum of 24” (610mm)
off the top of the unit, before the first elbow. The hori-
zontal run may extend up to 20’ (6 m) and include a
vertical rise of up to 40’ (12 m). (Fig. 7) Horizontal ter-
mination must also meet the criteria shown in Figures 9
through 11.
Model
Fuel Gas Control BTU/h BTU/h
JDVBRN
JDVBRP
Nat
Millivolt
Millivolt
28,000 20,000
28,000 19,000
Prop
Weight: Fully assembled; 350 lbs.
Gas Inlet and Manifold Pressures
• Approved vent systems must terminate above and
including the heavy line in Figure 7.
• Two 45˚ elbows may be substituted for each single
90˚ elbow.
• With a rise between 2’ - 6’, one 90˚ or two 45˚ elbows
may be used.
Natural
LP (Propane)
Inlet Minimum
5.5” w.c.
11.0” w.c.
14.0” w.c.
10” w.c.
Inlet Maximum
Manifold Pressure
14.0” w.c.
3.5” w.c.
The installation of your CFM Corporation stove must
conform with local codes, or in the absence of lo-
cal codes, with the National Fuel Gas Code ANSI
Z223.1/NFPA 54 - latest edition, or CSA B149.1
Installation code. (EXCEPTION: Do not derate this
appliance for altitude up to 4,500 feet (1,370 m).
Maintain the manifold pressure at 3.5” w.c. for Natural
Gas and 10.0” w.c. for LP Gas.
40
39
38
37
36
35
34
33
32
31
30
29
28
27
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.
26
May use up to
three 90° Elbows
25
24
23
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.
22
21
20
19
18
16
15
14
13
12
11
10
9
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370m).
WARNING: Improper installation, adjust-
ment, alteration, service or maintenance
can cause injury or property damage. Refer
to this manual for correct installation and
operational procedures. For assistance or
additional information consult a qualified
installer, service agency, or the gas supplier.
8
7
6
5
4
3
One 90°
Elbow
2
Unacceptable
Venting Configuration
1
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
Horizontal Run (in feet)
ST134a
Fig. 7 Horizontal vent termination window.
88
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Vertical Termination - Direct Vent ONLY
Vent Termination Clearances
A vertical vent system must terminate no less than 8’
(2.44 m) and no more than 40’ (12 m) above the appli-
ance flue collar. A 2¹⁄₄" restrictor plate (supplied) must
be used, where specified, in all vertically terminated
vent systems. (Refer to Figure 8) NOTE: The restrictor
plate supplied with the vertical termination should
be discarded. Install restrictor plate supplied with
stove directly at stove outlet. A vertically terminated
vent system must also conform to the following criteria:
When planning the installation, consider the location
of the vent terminal and clearances. Some of the most
common clearances to keep in mind are shown in Figure 9.
Important: All vent clearances must be maintained.
Check your vent termination clearances against
Figures 9 and 10.
The vent should be placed so that people cannot be
burned by accidentally touching the vent surfaces when
the stove is operating.
• No more than two 90° elbows may be used.
• Two 45° elbows may be substituted for one 90˚
elbow. No more than six elbows may be used.
The vent termination should be located where it cannot
be damaged by such things as automobile doors, lawn
mowers or snowblowers and it should be located away
from areas where it could become blocked by snow,
etc.
• Vent must rise a minimum of 2 feet before offset is
used.
• Termination height must conform to roof clearance
as specified in Figure 9.
Some considerations are:
• Obstructions or impediments to venting.
• Nearby combustible materials that could come into
contact with combustion exhaust gases.
40
39
38
All Vertical Termi-
nations in this area
Require use of
the 2¹⁄₄” Restrictor
37
• Other nearby openings {within 9” (229 mm)} through
which exhaust gas could reenter the building.
36
35
34
• All vegetation within 3’ (914 mm) that may interfere
with the draft.
33
Plate*
32
31
Other factors that influence where the installation will
be sited include the location of outside walls, where
additional heat may be desired in the home, where the
family members gather most regularly, and perhaps
most importantly, the distance limitations of the venting
system.
30
29
28
27
26
25
Vertical terminations
must be within this area
24
23
22
21
20
19
18
IMPORTANT
Direct Vent Only
16
Unacceptable
Venting Configuration
•
•
•
The horizontal termination must not be recessed
into the exterior wall or siding.
Horizontal vent runs must be level toward the
vent termination.
Clearances around the vent termination must be
maintained.
15
14
13
12
11
10
9
8
•
For installations using Simpson DuraVent pipe,
parallel installations with minimum wall clearance
have restricted access for connecting the Hori-
zontal Vent Cap straps to the vent pipe. See the
maker’s instructions for recommended installa-
tion procedures.
7
6
5
4
3
2
No offset may be used
1
within this area
0
20
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19
Horizontal Run (in feet)
ST132a
Fig. 8 Vertical vent termination window.
*The Restictor Plate is used on Direct Vent
installations only.
30004177
9
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Vent Termination Clearances
Your stove is approved to be vented either through the
side wall, or vertical through the roof.
There must not be any obstruction such as bushes,
garden sheds, fences, decks or utility buildings within
24” from the front of the termination hood.
• CFM Corporation does not require any opening
for inspection of vent pipe.
Do not locate termination hood where excessive snow
or ice build up may occur. Be sure to check vent termi-
nation area after snow falls, and clear to prevent ac-
cidental blockage of venting system. When using snow
blowers, make sure snow is not directed towards vent
termination area.
• Only CFM Corporation and Simpson DuraVent
venting components specifically approved and
labelled for this stove may be used.
• Minimum clearances between vent pipes and
combustible materials is one (1”) inch (25 mm),
except where stated otherwise.
Location of Vent Termination
It is imperative the vent termination be located observ-
ing the minimum clearances as shown in Figure 9.
• Venting terminals shall not be recessed into a wall or
siding.
• Horizontal venting must be installed on a level plane
without an inclining or declining slope.
1010
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
General Venting Information - Termination Location
INSIDE
CORNER DETAIL
G
V
N
H
N
A
D
E
B
V
L
C
B
B
�����
������
V
V
B
V
V
Fixed
Operable
Operable
Closed
F
B
M
V
J
X
B
I
K
X
V
A
CFM145a
AREA WHERE TERMINAL IS NOT PERMITTED
VENT TERMINATION
X
AIR SUPPLY INLET
V
Canadian Installations1
US Installations2
A = Clearance above grade, veranda, porch,
deck, or balcony
12” (30cm)
12” (30cm)
B = Clearance to window or door that may be
opened
6” (15cm) for appliances
6” (15cm) for appliances
< 10,000 Btuh (3kW), 9”
(23cm) for appliances > 10,000
Btuh (3kW) and < 50,000 Btuh
(15kW), 12” (30cm) for
< 10,000Btuh (3kW), 12” (30cm)
for appliances > 10,000 Btuh (3kW) and
< 100,000 Btuh (30kW), 36” (91cm)
for appliances > 100,000 Btuh (30kW)
appliances > 50,000 Btuh (15kW)
C = Clearance to permanently closed window
12” (305mm) recommended to
prevent window condensation
12” (305mm) recommended to
prevent window condensation
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal
distance of 2’ (610mm) from the center
line of the terminal
18” (458mm)
18” (458mm)
E = Clearance to unventilated soffit
F = Clearance to outside corner
G = Clearance to inside corner (see next page)
12” (305mm)
see next page
see next page
12” (305mm)
see next page
see next page
H = Clearance to each inside of center line
extended above meter/regulator assembly
3’ (91cm) within a height of 15’ (5m)
above the meter/regulator assembly
3’ (91cm) within a height of 15’
(5m) above the meter/regulator
assy
I = Clearance to service regulator vent outlet
3’ (91cm)
3’ (91cm)
J = Clearance to nonmechanical air supply inlet 6” (15cm) for appliances < 10,000
to building or the combustion air inlet to any Btuh (3kW), 12” (30cm) for
6” (15cm) for appliances
< 10,000 Btuh (3kW), 9”
(23cm) for appliances > 10,000
Btuh (3kW) and < 50,000 Btuh
(15kW), 12” (30cm) for
other appliances
appliances > 10,000 Btuh (3kW) and <
100,000 Btuh (30kW), 36” (91cm)
for appliances > 100,000 Btuh (30kW)
appliances > 50,000 Btuh (15kW)
K = Clearance to a mechanical air supply inlet
6’ (1.83m)
3’ (91cm) above if within 10’
(3m) horizontally
L = Clearance above paved sidewalk or paved 7’ (2.13m)†
driveway located on public property
7’ (2.13m)†
M = Clearance under veranda, porch, deck or
balcony
12” (30cm)‡
12” (30cm)‡
N = Clearance above a roof shall extend a minimum of 24” (610mm) above the highest point when it passes through the roof
surface, and any other obstruction within a horizontal distance of 18” (450mm).
1 In accordance with the current CSA-B149 Installation Codes
2 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Codes
† A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings
‡ only permitted if veranda, porch, deck or balcony is fully open on a minimum 2 sides beneath the floor:
NOTE: 1. Local codes or regulations may require different clearances.
2. The special venting system used on Direct Vent Stoves are certified as part of the appliance, with clearances tested and approved by the list-
ing agency.
3. CFM Corporation assumes no responsibility for the improper performance of the appliance when the venting system does not
meet these requirements.
Fig. 9 Vent termination clearances.
30004177
11
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
Inside Corner
Alcove Applications*
Outside Corner
D
C
C
F =
Combustible
6" (152 mm)
G =
Combustible
6" (152 mm)
V
G
V
Noncombustible
2" (51 mm)
V
E
Noncombustible
2" (51 mm)
O
F
Balcony -
with no side wall
Balcony -
with perpendicular side wall
E = Min. 6” (152 mm) for
non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls
O = 8’ (2.4 m) Min.
M
No.
of Caps
M
V
DMin.
CMax.
V
1
2
3
4
3’ (914 mm) 2 x DActual
P
6’ (1.8 m)
9’ (2.7 m)
12’ (3.7 m) 1/2 x DActual
1 x DActual
2/3 x DActual
Combustible &
Noncombustible
M =
Combustible &
Noncombustible
12" (305 mm)
M = 24" (610 mm)
P = 20” (508 mm)
DMin. = # of Termination caps x 3
CMax. = (2 / # termination caps) x DActual
584-15
*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. 10 Termination clearances.
Venting Requirements - Natural Vent Only
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
Venting Runs
A
B
= Acceptable venting configuration
= Unacceptable venting configuration
A: Vertical installations up to 36' (12m) in
height. Up to an 18' horizontal vent run can be
installed within the vent system using a
maximum of two 90-degree elbows or four
45-degree elbows.
B: Vertical installations up to 36' (12m) in
height. Up to a 24' horizontal vent run can be
installed within the vent system using a
maximum of two 45-degree elbows.
(Ratio = 2/3, Hor./Vert.)
4
6
8
10 12 1416 18 20 22 24 26 28 30 32 34 36
Horizontal Run (in feet)
FP567b
Fig. 11 Vent termination window - Natural Vent ONLY.
NOTE: When using the FSDHAG, the restrictor
plate supplied with the stove is not used.
1212
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Min. Through the Wall Vent Kit
(1) 90-Degree Elbow (CG)
(1) 24” Straight pipe (CG)
7TFSSK
Venting Requirements and Options -
Direct Vent ONLY
(1) 24” - 42” Adjustable Straight Pipe
(1) Side Wall Termination
(1) Firestop
(1) Zero-clearance sleeve
(1) Hardware package
Approved Vent System Components
The Jefferson Heater must be vented to the outdoors
through an adjacent exterior wall or through the roof.
The venting system must be comprised of the appropri-
ate listed venting components specified on this page.
These parts are available from DuraVent Corporation or
your CFM Corporation Dealer.
(1) Finishing plate (CG)
(1) Finishing collar (CG)
(4) Charcoal Gray flue pipe rings
Starter Kit for Below-Grade Termination
(1) Snorkel Termination (7TDVSNORK)
Vertical Termination Kit, 1/12-6/12 Pitch
(1) Combination Horizontal Offset / Roof Support
(1) Vertical Termination
(1) Storm Collar
(1) 1/12-6/12 Flashing
(1) Finishing Plate (CG)
(1) Finishing Collar (CG)
(1) Polished Brass Flue Pipe Ring
(1) Hardware Package
Vertical Termination Kit, 7/12-12/12 Pitch
(1) 7/12 - 12/12 Flashing
and all of the other Vertical Termination parts.
Vertical Termination, Flat Roof
(1) Flat Flashing
Refer to Figure 4 for dimensions relevant to the stan-
dard minimum-vent kits.
7TDVSKS
7TDVSKVA
Simpson DuraVent Components
Minimum Horizontal Vent Kit
Starter Pipe Assembly (incl. inner & outer sections)
2768*
90° Elbow, Blk.
45° Elbow, Gal.
6” Straight, Blk.
9” Straight, Blk.
11” - 14⁵⁄₈” Adjustable Straight Section
12” Straight
24” Straight
2792
990B*
945
908B*
907B
911B
906
904B*
903B
902
984*
940*
950
982
981
988
941
953
963
943
943S
7TDVSKVB
7DVSKVF
36” Straight
48” Straight
Horizontal Vent Cap
Wall Plate
Vinyl Siding Shield
Snorkel Termination - 14”
Snorkel Termination - 36”
Wall Strap
Cathedral Ceiling Support Box
Storm Collar
Firestop Spacer
and all of the other Vertical Termination parts.
Twist Lock 12” Straight Pipe (CG)
(1) 12” Non-adjustable Pipe
Twist Lock 12” - 18” Adjustable Pipe
(1) 12” - 18” Adjustable Pipe
Twist Lock 24” Straight Pipe (CG)
(1) 24” Non-adjustable Pipe
Twist Lock 48” Straight Pipe (CG)
(1) 48” Nonadjustable Pipe
Twist Lock 45-Degree Elbow (CG)
for vertical offsets
7TFSDVP12
7TFSDVP1218
7TFSDVP24
7TFSDVP48
7TFSDVT45
Flashing 0/12 - 6/12
Flashing 6/12 - 12/12
Steel Chimney
Kit A
Kit B
Kit C
931
932
933
934
991
980
(1) 45-degree Elbow
Draft Hood Adapter
NV Stove Kit
(1) 7” Diameter Polished Brass Trim Ring
(1) 48” Nonadjustable Pipe (CG)
(1) 24” Nonadjustable Pipe (CG)
(1) Finishing Plate
FSDHAG
7FSSK
Masonry Chimney Kit
Vertical Termination Cap (High Wind)
Vertical Termination Cap (Low Profile)
*Included in Minimum Horizontal Vent Kit #2792
All DuraVent Straight vent pipe sections have a net length
1¹⁄₂” (37mm) less than the nominal dimension; i.e., a 6”
(152mm) Straight pipe section has an effective length of 4¹⁄₂”
(115mm).
(1) Finishing Collar (CG)
(1) 90 Degree Elbow (CG)
Stove Kit
Includes all parts in the 7FSSK plus the Draft Hood Adapter
FSDHAG
Combination Offset/Roof Support
Attic Insulation Shield
7” Charcoal Gray Pipe Rings, (4)
7” Polished Brass Pipe Rings (4)
Wall Thimble
7FSDHASK
CFM Vent Components
7DVCS
7DVAIS
7FSDRG
7FSDRP
942G
The following kits are available to meet the needs of
most installations. All pipe has a 7” outer diameter and
includes a 4” diameter inner section. A (CG) designa-
tion indicates the part is finished in Charcoal Gray
paint. Consult your dealer about other vent parts that
may be appropriate to complete the installation.
NOTE: Direct vent pipe may be used on the Natural
Vent system from the top of the draft hood adapter to
the ceiling.
30004177
13
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Assembly Procedures
NOTE: Verify the two relief doors (located on top of
the firebox) are properly seated on the gasket. The
doors should sit flush on the gasket and should lift
easily from the seal around the opening.
WARNING
Failure to position the parts in accor-
dance with these diagrams or failure to
use only parts specifically approved for
use with this heater may result in property dam-
age or personal injury.
Install the Optional Fan
WARNING
This heater and components are heavy. Have
help available for assembly.
This appliance is equipped with a three-prong
(grounded) plug for your protection against shock
hazard and should be plugged directly into a
properly grounded three-prong receptacle. Do not
cut or remove the grounding prong from this plug.
Tools Required
• Phillips screwdriver (stub)
• utility knife
• power drill
• reciprocating saw
If you are installing the optional convection Fan Kit
#2960 (FK28), continue here. If you will not install the
Fan Kit, go to Page 15, Venting System Assembly.
• metal drill bit: size 28 (.140”/3.5mm)
Unpack the Stove
1. The fan kit includes a blower assembly and a
rheostat assembly connected by a cable. (Fig. 14)
The blower assembly and the rheostat mount to the
rear shroud of the stove. The assembly includes a
‘snapstat’ which automatically turns the fan ON (or
OFF) above (or below) approximately 109° F (43°
C). The rheostat also provides a range of fan speed
settings from Off (which overrides the snapstat
function) to HIGH. Unpack and inspect the blower
assembly. Confirm that the fan spins freely.
The parts bag containing this manual also includes the
following parts:
• Remote Switch
• Switch Wire
• Cement
• Switch Bracket
• 1/4-20 x 3/8” screws (3)
• Restrictor Plate
• #10 Sheet metal screws (2)
The logset and 4” inner vent starter pipe are packed in-
side the firebox. Use the following procedure to unpack
these parts.
2. Attach the snapstat assembly to the snapstat brack-
et with two (2) sheet metal screws. (Fig. 13) Remove
the 1/4-20 x 3/8” hex head bolt installed in the hole
in the right rear ledge of the firebox. Use that bolt
to secure the snapstat bracket to the firebox. The
mounting hole is slotted to allow you to adjust the
bracket so the snapstat bracket head makes contact
with the firebox. (Fig. 13)
1. Lift the stove front up and then swing the bottom out
and away to disengage it from the stove body. Refer
to Figure 37, Page 23.
2. Swing open the swiveling latches at the top left and
right corners of the glass frame. (Fig. 12)
1/4-20 x 3/8”
Phillips
Screw
ST208
1/2” Sheet
Metal Screw
Fig. 12 Swivel the latches to release the glass frame from
the firebox.
3. Pull the top edge of the glass and frame assembly
away from the firebox and lift it off its supports on the
bottom of the firebox face. Place the assembly out of
the way on a flat, padded surface such as a counter
protected by a towel.
Snapstat
Snapstat Bracket
ST239
Fig. 13 Snapstat assembly and installation.
4. Take the logset and all other loose parts out of the
firebox and set them aside in a protected area for
installation after the venting is complete.
1414
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
3. Attach the fan to the rear shroud by engaging the
upper flange of the fan skirt under the lower edge of
the shroud and secure the skirt with the four screws
and one star washer provided. (Fig. 14)
Venting System Assembly - Direct Vent
General Information
The Jefferson is approved for installation only with the
vent components listed on Page 13. Follow the vent
component instructions exactly.
4. The rheostat control switch attaches to the left side
of the valve bracket at the front of the stove.
• Remove the plug from the rheostat bracket.
For U.S. installations: The venting system must con-
form with local codes and/or the current National Fuel
Gas Code, ANSI Z223.1/NFPA 54.
• Insert the switch box shaft through the hole in
the back of the right side of the valve bracket,
aligning the locator pin with the smaller hole in
that bracket.
For Canadian installations: The venting system must
conform to the current CSA B149.1 installation code.
• Attach the retaining nut to the switch control
shaft to secure it to the plate.
Install the Vent Adapter Pipe
(CFM Corporation Vent Components)
• Attach the control knob to the rheostat shaft.
• Use the wire tie to secure the fan and rheostat
wire harnesses together.
1. Install the Restrictor Plate. Consult the “Vertical
Terminations” on Page 9 to determine whether the
restrictor plate is needed. If so, put the restrictor
plate in place within the inner flue collar as shown in
Figure 16. NOTE: The restrictor plate supplied with
the vertical termination should be discarded. Install
restrictor plate supplied with the stove directly at
stove outlet.
Upper
Flange
ST240
Fig. 14 The upper flange of the fan skirt should be located
behind the lower edge of the shroud.
ST210
Fig. 16 Install the restrictor plate only if required for the vent-
ing configuration. Refer to Page 9.
2. Attach Inner Starter Pipe, (found in with the log-
set), to the next section of inner pipe.
ST241
Fig. 15 Correct position of fan skirt installation.
• Run a bead of sealant about 1/2” from the upper
end of the Inner starter pipe and join the two sec-
tions together.
• Drill three pilot holes into the Inner Starter and
secure the assembly with three sheet metal screws.
(Fig. 17)
3. Dry fit the Inner Pipe assembly to the stove for
the purpose of determining the center line of the
pipe on the wall.
• Side Wall Terminations: Dry fit the outer elbow
with the vertical outer vent and confirm the centerline
alignment with the wall thimble opening.
30004177
15
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
First Section of
Vent Pipe
1/4”-20 x 1/2”
Phillips Screw
CEMENT
4” Inner
Starter
Pipe
ST211
Fig. 17 Connect the inner starter with the next section of
inner vent pipe.
4. Attach the Inner Vent Assembly to the stove.
ST213
• Run a bead of sealant around the bottom end of
the starter pipe and attach the assembly to the stove
using three 1/4-20 x 3/8” Phillips screws provided in
the parts bag. (Fig. 18)
Fig. 19 Fasten outer pipe with #12 x 1/2” sheet metal screws.
Install the Vent Adapter Pipe
(Simpson Dura-Vent Components)
1. Install the Restrictor Plate. Consult the “Vertical
Terminations” on Page 9 to determine whether the
restrictor plate is needed. If so, put the restrictor
plate in place within the inner flue collar as shown in
Figure 16.
2. Discard the inner starter pipe shipped with the log-
set. Using the starter pipe assembly listed on Page
13, slide the inner section out to allow access.
CEMENT
• Run a bead of sealant around the bottom end of
the starter pipe and attach the assembly to the stove
using three 1/4-20 x 3/8” Phillips screws provided in
the parts bag. (Fig. 20)
3. Install the Outer Adapter Pipe. Apply a 1/4” bead
of cement around the outside surface, about one
inch from the crimped end. (Fig. 21) Orient the verti-
cal seam to the rear, and insert the crimped end of
the outer pipe into the flue collar. Fasten with three
(3) sheet metal screws provided.
ST212
Inner Adapter Pipe
1/4-20 x
Fig. 18 Attach inner assembly to flue collar.
3/8” Phillips
Screws
5. Install the Outer Adapter Pipe. Insert the pipe
over the stove flue collar, keeping the vertical seam
oriented to the back of the stove. Also, be sure to
align holes on the pipe with the holes on the flue
collar of the firebox. Fasten the pipe to the holes in
the flue collar with the #12 x 1/2” sheet metal screws
provided. (Fig. 19)
CEMENT
ST355
Fig. 20 Simpson Dura-Vent - install inner adapter pipe.
1616
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
12”
(305mm)
Max. Length
Sleeve
#8 Sheet
Metal Screws
ST356
Fig. 21 Simpson Dura-Vent - install outer adapter pipe.
Firestop
ZCS103
Side Wall Termination Assembly
Fig. 23 Assemble the wall sleeve and firestop.
1. Locate the vent opening on the wall. Refer to Page
7, Figure 5, to determine the opening centerline.
It may be necessary to first position the stove and
measure to find the hole location. Depending on
whether the wall is made of combustible materi-
als, cut the opening to the size shown in Figure
22. Combustible wall openings must be framed as
shown in Figure 22.
For DuraVent pipe only: Install vent pipe by align-
ing the locking system together, sliding the pipes
together and twisting clockwise.
• Install 90° elbow. Twist lock as before.
• Slide the wall plate over horizontal run before at-
taching the horizontal run to the elbow. Fasten wall
plate to wall.
4. For CFM Vent Pipe only: If necessary, measure
to determine the vertical length (X) of pipe required
from the adapter pipe to the wall cutout centerline,
including a 2” overlap at the joint. (Fig. 24) use a
hacksaw or tin snips to trim the pipe as needed.
CFM System
9³⁄₈”
(240mm)
9³⁄₈”
(240mm)
Combustible Wall
10”
(254mm)
DuraVent
System
Framing Detail
10”
(254mm)
7¹⁄₂”
X
Noncombustible
Wall
VO584-100
Fig. 22 Locate vent opening.
2. Measure the wall thickness and cut the wall sleeve
sections to proper length (MAXIMUM 12”). Assemble
the sleeve with the #8 sheet metal screws supplied.
Attach the firestop plate to the sleeve end with the
holes. (Fig. 23) NOTE: The wall sleeve is required
in combustible walls only.
ST214
Fig. 24 Determine the vertical pipe length.
3. Install the Wall Firestop/Sleeve assembly into the
wall cutout and fasten the firestop to the wall cutout
framing members. (Fig. 23)
5. Install first the inner then the outer straight pipe
section(s), trimmed end down, to the point of the el-
bow. Drill 3 holes through each joint and fasten with
sheet metal screws.
30004177
17
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
6. Install the elbow using 3 sheet metal screws at each
joint.
Seal Both
Terminal Ends
7. Measure, and cut if needed, the appropriate length
of pipe section needed to make the connection
through the wall. Include a 2” overlap; i.e. from the
elbow to the outside wall face, about 2” or the dis-
tance required if installing a second 90° elbow. (Fig.
25)
8. Slip the wall plate and trim collar over the interior
end of the horizontal pipe and install into the wall
sleeve. Seal the joint inside the wall plate if needed
to keep cold air from being drawn into the home.
Caulk Plate Joint with
Weatherproof Sealant
ST217
9. Connect the horizontal pipe to the elbow. Fasten the
wall plate to the pipe with three sheet metal screws.
Slide the trim collar up against the wall plate to cover
the screws. (Fig. 26)
Fig. 27 Install the vent terminal.
Vent Termination Below Grade
Install Snorkel Kit #7FSDVSKS when it is not possible
to meet the required vent termination clearances of 12”
(305 mm) above grade level. The snorkel kit will allow
installation depth of down to 7” (178 mm) below grade
level. The seven inches is measured from the center of
the horizontal vent pipe as it penetrates the wall. If the
venting system is installed below grade, a window
well must be installed with adequate and proper
drainage. (Fig. 28)
X
NOTE: Be sure to maintain side wall clearances and
vent run restrictions. Refer to Pages 7,8, 9, Figures 3,
4, 7, 8.
ST215
Fig. 25 Measure the horizontal length.
1. Establish the vent hole through the wall.
2. Remove soil to a depth of approximately 16” (406 mm)
below the base of the snorkel. Install a window well
(not supplied). Refill the hole with 12” (305 mm) of
coarse gravel and maintain a clearance of at least 4”
(102 mm) below the snorkel. (Fig. 28)
Trim Collar
Wall
Sleeve
3. Install the vent system as described on pages 15-18.
4. Be sure to make a watertight joint around the vent
pipe joint at the inside and outside wall joints.
5. Apply high temperature sealant around the inner
and outer snorkel collars. Join the pipes and fasten
the snorkel termination to the wall with the screws
provided.
ST216
Wall Plate
Fig. 26 Install the horizontal pipe and wall plate parts.
6. Level the soil to maintain a 4” clearance below the
snorkel.
10. For both CFM and DuraVent Systems: Install the
vent terminal. (Fig. 27) Apply high temperature seal-
ant one inch from the ends of the inner and outer
collars. Guide the inner and outer vent termination
collars into the adjacent pipes. Double check that
the vent pipes overlap the collars by 2”. Fasten the
termination to the wall with the screws provided, and
caulk the joint with weatherproof sealant.
If the foundation is recessed, use extension brack-
ets (not supplied) to fasten the lower portion of the
snorkel. Fasten the brackets to the wall first, and
then fasten to the snorkel with self-tapping #8 x 1/2”
sheet metal screws. Extend the vent pipes out as far
as the protruding wall face. (Fig. 29)
11. For CFM only: Install Charcoal Gray Pipe Rings
(#7FSDRG) or Polished Brass Pipe Rings (#7FSDRP)
at pipe joints, if desired.
1818
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
3. Cut the opening:
Wall Screws
and Anchors
Waterproof Seal
Around PIpe
Firestop
CFM System: 9³⁄₈” x 9³⁄₈” (240 x 240 mm)
DuraVent System: 10” x 10” (254 x 254 mm)
Snorkel
Termination
Cap
4. Plumb any additional opening through the roof or
other construction that may be needed. In all cases,
the opening must provide a minimum of 1” (25 mm)
clearance to the vent pipe.
4” Clearance
Gravel
5. Place the stove in its final position.
6. Install firestop(s) #7DVFS and Attic Insulation Shield
#7DVAIS as needed. (Fig. 30) If there is a room
above ceiling level, a firestop must be installed on
both the bottom and top sides of the ceiling joists.
If an attic is above ceiling level, an attic insulation
shield must be installed.
Drain
Window
Well
#7DVAIS
Attic Insulation
Shield
ST218
Fig. 28 Snorkel kit installation.
Recessed Wall
#7DVFS
Use Four
Firestop in
8d Nails
Upper Floor
Firestop
Finishing
Collar
Sheet Metal
Screws and
Bracket
Wall Screws
and Anchors
#7DVFS
Firestop in
ST222
Ceiling
Waterproof Seal
Around Pipe
Fig. 30 Install firestops and attic insulation shield.
7. Install the appropriate roof support and flashing,
making certain that the upper flange of the flashing
base is below the shingles. (Fig. 31)
7” Pipe
Wall Plate
ST219
8. Install appropriate pipe sections until the vent run
reaches above the flashing. The enlarged ends of
the vent sections always face downward.
Fig. 29 Use extension brackets to mount snorkel against
recessed wall.
9. Install the storm collar and seal around the joints.
(Fig. 31)
Vertical (Through the Roof)
Vent Assembly
10. Add additional vent lengths to achieve the proper
overall height.
Note that all vertically terminated installations
must, where specified, use the restrictor plate to
comply with Vertical Termination Window (Page 9,
Figure 8), included in the hardware bag.
11. Apply cement to the inner and outer termination col-
lars and install the terminal cap.
Venting System Assembly - Natural Vent
General Information
Make certain the vent system conforms to all other
requirements for vertical termination as specified on
Page 9.
The Jefferson Heater is shipped from the factory as a
Direct Vent Heater. It may be converted to a Natural
Vent heater by installing the CFM Corporation Model
Z31D00 FSDHAG Draft Hood Adapter.
This installation will require you to first determine the
roof pitch and use the appropriate vent components.
Refer to Figures 8 and 9 on Pages 9 and 10.
1. Locate the final position of the stove, observing all
clearances for both the vent and the stove.
The Jefferson Heater is approved for installation as a
Natural Vent unit. CFM Direct Vent outer pipe (7FSSK)
could be used directly after the Draft Hood Adapter
2. Plumb to the center of the inner (4”) flue collar from
the ceiling above, and mark that location.
30004177
19
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Decorative 7”
Pipe
CFM outer pipe
(7FSSK) may be
used after Draft
Hood up to the
ceiling.
Use three #5
sheet metal
screws at
each joint
4” B-vent
Pipe
Sealant
Storm Collar
Draft Hood
Adapter
Upper
edge of
flange goes
under upper
shingles
#7DVSKV
(A, B, or
F) Roof
Support
Flashing
ST221
Fig. 31 Roof support and flashing.
up to the ceiling, then B-vent pipe must be used. Do
not mix types of B-vent pipe; use components from
one maker or the another. Follow the vent component
maker’s instructions exactly. The heater will also accept
standard or enamelled 7” (150 mm) diameter pipe,
aroudn the Type B venting, for decorative purposes
only. (Fig. 32)
ST358
Fig. 32 Decorative 7” pipe may be fitted around the B-vent
pipe.
sections usually do not need to be fastened at each
joint, other than slip sections. If the layout includes
a slip section, this should be the last section of pipe
visible in the room, at the ceiling. Complete the venting
according to the vent maker’s instructions.
NOTE: The restrictor plate supplied with the stove
is not used for Natural Vent applications.
The Jefferson stove, when installed as a Natural vent
heater, includes a vent safety switch. (Page 32, Fig. 63)
Operating the stove when it is not connected to a
properly installed and maintained venting system, or
tampering with or disconnecting the vent safety switch,
can result in carbon monoxide (CO) poisoning and
possible death.
For U.S. installations: The venting system must
conform with local codes and/or the current National
Fuel Gas Code, ANSI Z22.1.
For Canadian installations: The venting system must
conform to the current CSA B149.1 installation code.
Install the Vent Pipe
CEMENT
Apply a bead of sealant around bottom end of inner
starter pipe (found in bag with logset) and attach to
stove. Apply a bead of sealant around top of inner
starter pipe and install the Z31B00 FSDHAG Draft
Hood according to Draft Hood instructions. (Fig. 33)
Attach the first section of venting to the draft hood.
Depending on the length of the individual venting
sections and the lengths of the decorative pipe (if
installed), you may need to slip the decorative pipe over
the venting sections before attaching upper sections
to lower ones. The sections of decorative pipe should
be oriented with their seams (if any) toward the wall;
ST357
Fig. 33 Install draft hood adapter.
2020
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Install the Log Set
1. Remove the logs from their packaging and inspect
each piece for damage. DO NOT INSTALL DAM-
AGED LOGS.
Rear Log (1)
Right Middle Log (3)
Figure 34
2. Install the rear log (1) by
centering it side to side
on the sheet metal shelf
at the back of the firebox.
(Fig. 34)
Left Middle
Log (2)
3. Install the left (2), and
right (3) middle logs by
engaging holes on their
bottoms with pins on the
burner brackets. (Fig. 34)
Figure 35
Top Log
(5)
ST223
Upper Log (4)
Decorative Grate
4. Loosely sprinkle the lava rocks directly on top of the
burner between the decorative grate and the middle
logs. Do not place any ember material behind the
middle logs. (Fig. 35)
5. Engage the upper log (4) with the rear log and the
right middle log as shown in Figure 35. Engage the
top log (5) with the upper log and the left middle log.
(Fig. 35)
Figure 36
ST224
Lava Rock
ST225
30004177
21
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Burner Information
Connect the Gas Supply Line
The appliance must only use the gas specified on the
rating plate, unless converted using a CFM Corporation
Fuel Conversion Kit. To convert from Natural Gas to LP
use Kit #30004180.
Check the Rating Plate attached by a steel cable to the
firebox, to confirm that you have the appropriate firebox
for the type of fuel to be used. The Jefferson may be
converted from one gas to another using the appropri-
ate Fuel Conversion Kit listed on Page 34.
Conversion instructions are provided with each kit and
beginning on Page 28 in this manual.
In the U.S.; Gas connection should be made in ac-
cordance with current National Fuel Gas Code, ANSI
Z223.1/NFPA 54. Since some municipalities have
additional local codes, be sure to consult your local
authority.
THIS APPLIANCE SHOULD BE CONNECTED
TO THE GAS SUPPLY ONLY BY A QUALI-
FIED GAS SERVICE TECHNICIAN. FOLLOW
ALL LOCAL CODES.
In Canada; consult the local authority and CSA-B149.1
THERE MUST BE A GAS SHUT-OFF BE-
TWEEN THE STOVE AND THE SUPPLY.
installation code.
Always check for gas leaks with a mild
soap and water solution. Do not use an
open flame for leak testing.
In order to connect Natural Gas, use a fitting with 3/8”
NPT on the valve side and 1/2” natural gas supply line
with an input of 28,000 BTUs at a manifold pressure
of 3.5” between minimum inlet supply of 5.5” w.c. and
maximum of 14.0” w.c.
Light the pilot according to the directions on Page 26,
before going to the next step.
In order to connect Propane, use a fitting with 3/8”
NPT on the valve side and 1/2” propane gas supply line
with an input of 28,000 BTUs at a manifold pressure of
10.0” between a minimum inlet supply of 11.0” w.c. and
maximum of 14.0” w.c.
CAUTION
This appliance should only be connected
by a qualified gas technician. Test to
confirm manifold pressures as specified
below.
Air Shutter Adjustment
The Jefferson Heater and its individual shutoff
valve must be disconnected from the gas supply
piping during any pressure testing of that system
at test pressures in excess of 1/2 psig (3.5 kPa).
The Jefferson is shipped from the factory with the air
shutter adjusted to the minimum allowed opening. Refer
to Table 1. Based on the altitude where the stove is
located, a shutter adjustment is acceptable to provide
mixed balance of flame color/glow. To adjust the shutter
opening, follow the steps below.
The Jefferson Heater must be isolated from the
gas supply piping system by closing its indi-
vidual manual shutoff valve during any pressure
testing of the gas supply piping system at test
pressure equal to or less than 1/2 psig.
NOTE: The air shutter may only be adjusted to a more
open position. The factory setting is the minimum al-
lowable air shutter setting.
There must be a gas shutoff between the stove
and the supply.
Table 1. Air Shutter Adjustment
Minimum rear injector air inlet openings
In order to connect Natural Gas, use a fitting
with 3/8” NPT on the valve side and 1/2” natural
gas supply line with an input of 28,000 BTUs at a
manifold pressure of 3.5” between minimum inlet
supply of 5.5” w.c. and maximum of 14.0” w.c.
Model
Direct Vent
Natural Vent
Natural Gas
1/2” (13 mm) 1/2” (13 mm)
1/2” (13 mm) 1” (25 mm)
LP
Air Shutter Adjustment Instructions
In order to connect Propane, use a fitting with 3/8”
NPT on the valve side and 1/2” propane gas sup-
ply line with an input of 28,000 BTUs at a manifold
pressure of 10.0” between a minimum inlet supply
of 11.0” w.c. and maximum of 14.0” w.c.
To adjust the air shutter, follow these steps:
CAUTION: Allow unit to cool if it has been in
operation.
1. Remove stove front. Lift stove front up and then
swing bottom out and away to disengage from the
stove body. (Fig. 37)
2. Swing open the swiveling latches at the top left and
right corners of the glass frame. (Page 14, Fig. 12)
2222
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Reassemble the shutter to allow the rear injector air
inlet to close from a minimum 1/2” opening to fully
open. (Fig. 40) You may have to try more than once
to find the correct air shutter opening for best results
depending on your altitude.
Air Shutter
(Original Position)
See Table 1
Burner
ST352
ST229a
Fig. 39 Air shutter in original from-the-factory position.
Fig. 37 Remove stove front.
Front
Air Shutter
Injector
Air Inlet
3. Pull the top edge of the glass and frame assembly
away from the firebox and lift it off its supports on the
bottom of the firebox face. Place the assembly out of
the way on a flat, padded surface such as a counter
protected by a towel.
(May be adjusted up to fully open)
Burner
4. Take the logset out of the firebox if previously in-
stalled.
Rear Injector Air Inlet
5. Remove the rear log bracket by unfastening the
screw. (Fig. 38)
6. Remove the right and left log bracket assembly by
unfastening the two screws that hold the burner in
place. (Fig. 38)
ST351
Fig. 40 Air shutter adjusted.
Remove Screws
Rear Log Bracket
9. Refasten the two nuts and assemble the burner into
the unit by sliding the burner in at an angle with the
left side lower than the right side. Slide the left side
onto the injectors. Lower the right hand side down
into place. Make sure the burner is as far left as pos-
sible and the injector shoulders are inside the burner.
NOTE: It is very critical to keep the left burner leg,
which holds the injectors at a 90° angle to the base.
(Fig. 41) This keeps the orifices aligned with tubes
on the inside of the burner. Failure to do so could
affect the flame appearance and performance of the
unit.
Pilot
Left & Right Log
Bracket Assembly
ST350
10. Refasten the right and left log bracket assembly.
11. Refasten the rear log bracket.
12. Replace logs.
Fig. 38 Remove rear log bracket and left and right log bracket
assembly.
7. Hold the burner at the right hand side and lift to clear
the right burner leg. Then pull to the right to clear the
injectors on the left hand side.
13. Replace glass and stove front.
Follow lighting instructions on Page 26. Check flame
color appearance. NOTE: Allow stove to burn for at
least 1/2 hour to establish full flame color.
8. The air shutter is located on the bottom of the burner
to the left. (Fig. 39) Unfasten the two nuts holding
the shutter in place. The shutter may be adjusted
between the factory adjusted 1/2” to fully open.
Should color need further adjustment, repeat Steps 1-
12 for further air shutter adjustment.
30004177
23
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Install the Stove Front
Left Burner Leg
Injector Orifices
The front panel attaches to the stove by four (4) steel
tabs that engage with corresponding cast ribs on the
sides and bottom of the stove body. Position the front
about 3” down from the stove top and lift the plate to
engage the upper tabs behind the adjacent ribs on the
side. (Fig. 44) Then lower the plate into position, so the
lower tabs engage with the corresponding ribs at the
bottom. (Fig. 45)
90°
ST353a
Fig. 41 Remove and replace injector orifices.
When properly installed, the bottom of the stove front
cannot be pulled away from the sides without also lifting
it.
Complete the Assembly
Upper Tabs
• Open the swiveling latches (cams) on the top left
and right corners of the glass frame.
3”
• Position the glass and frame against the firebox by
placing the bottom edge on the brackets on the bot-
tom face of the firebox.
(76 mm)
• Swing the assembly against the firebox, and close
the latches firmly against the pins protruding from
the firebox top.
Install ON/OFF Switch
The switch assembly parts are found in the parts bag.
1. Attach switch assembly to left rear side of stove
shroud (when facing shroud) using two screws and
existing holes in shroud. (Fig. 42)
2. Run wires down back of stove, under bottom of rear
shroud to valve.
Control
Door
Lower Tabs Engage
Ribs in bottom
ST229
Fig. 44 Install stove front.
3. Attach wires to valve terminals. (Fig. 43)
Side Rib
Stove Side
Front Tab
Switch As-
sembly
Existing
Holes
Stove Front
ST279
Fig. 45 Engage with side ribs.
Screws
ST315
Thermostat Connection (optional)
Fig. 42 Attach switch assembly to rear shroud.
Use only a thermostat rated for 500 - 750 millivolts.
Check the table below for the appropriate gauge ther-
mostat wire to use for the length of lead required in your
installation.
Thermostat
Wire / Gauge
Maximum Run
20 feet
20 - 40 feet
up to 60 feet
18
16
14
1. Install the wall thermostat in the desired location and
run the wires to the stove location. Terminate these
leads with 1/4” female connectors.
ST228
Fig. 43 Attach switch wires to valve.
2. Connect the thermostat wires to the valve. (Fig. 43)
2424
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Operation
Flame Characteristics
Your First Fire
It is important to periodically perform a visual check of
the pilot and the burner flames. Compare them to Fig-
ures 48, 49, 50. If any of the flames appear abnormal,
call a service person.
Read these instructions carefully and familiarize
yourself with the burner controls shown in Figure 47.
Locate the pilot assembly, Figure 46. Follow the lighting
instructions on Page 26 exactly.
During the first fire, it is not unusual to smell some
odor associated with new logs, paint and metal being
heated. Odors should dissipate within the first eight to
ten hours, however, you can open a window to provide
fresh air to alleviate the condition.
Pilot and Burner Inspection
Each time you light your heater check that the pilot
flame and burner flame patterns are as shown in Fig-
ures 48, 49, 50. If flame patterns are incorrect, turn the
heater off. Contact your dealer or a qualified gas techni-
cian for assistance. Do not operate the heater until the
pilot flame is correct.
ST233
Fig. 48 Correct pilot flame appearance. PSE pilot.
Follow regular maintenance procedures as described
on Page 30.
CO105c
Fig. 49 Correct pilot flame pattern. SIT valve.
Pilot Assembly
Thermocouple
ST232
Fig. 46 Pilot assembly location.
Flame & Temperature Adjustment
For stoves equipped with HI/LO valves, flame adjust-
ment is accomplished by rotating the HI/LO adjustment
knob located near the center of the gas control valve.
(Fig. 47)
Turn
�
counterclockwise
to decrease
Turn clockwise
to increase
�
�
�
ST234
Fig. 50 Correct burner flame appearance.
flame height
flame height
Fig. 47 Flame adjustment knob for Honeywell valve.
30004177
25
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Lighting and Operating Instructions
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 instruc-
tions exactly.
•
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.
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
D. Do not use this fireplace if any part has been under
water. Immediately call a qualified service techni-
cian to inspect the heater and to replace any part of
the control system and any gas control which has
been under water.
•
•
•
•
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 neigh-
bor’s phone. Follow the gas supplier’s instruc-
tions.
Lighting Instructions
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.
10. Push the control knob all the way in and hold.
Immediately light the pilot by repeatedly depress-
ing 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.
4. Open control access panel.
5. Push in gas control knob slightly and turn
clockwise
to “OFF”.
3/8" - 1/2"
OFF
PILOT
o
l
2
O
3
Honeywell
Euro SIT
SIT NOVA
•
If knob does not pop up when released, stop
and immediately call your service technician or
gas supplier.
6. Remove glass door before lighting pilot. (See
Glass Frame Removal section).
•
If after several tries, the pilot will not stay lit,
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 infor-
mation above. If you do not smell gas, go to the
next step.
8. Visibly locate pilot by the main burner.
9. Turn knob on gas control counterclockwise
to “PILOT”.
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.
3. Open control access panel.
4. Push in gas control knob slightly and turn clock-
2. Turn off all electric power to the fireplace if
service is to be performed.
wise
to “OFF”. Do not force.
5. Close control access panel.
2626
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Troubleshooting / Honeywell #8420 Gas Control System
NOTE: Before troubleshooting the gas control system, be sure the external gas shutoff is in the “ON” position.
WARNING: REMOVE THE GLASS PANEL BEFORE PERFORMING ANY GAS CONTROL SERVICE WORK.
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
1. Spark ignitor will
not light
A. Defective or misaligned
electrode at the pilot
Using a match, light pilot. If pilot lights, turn off pilot and
push the ignitor button again. If pilot will not light, check
gap at electrode and pilot - it should be 1/8” to have a
strong spark.
B. Defective ignitor (push but-
ton)
Push piezo ignitor button. Check for spark at electrode
and pilot. If there is no spark at the pilot, and electrode
wire is properly connected, replace ignitor.
A. Defective pilot generator
(thermocouple)
Check pilot flame. It must impinge on the thermocouple
or thermopile. NOTE: This pilot burner assembly uses
both a thermocouple and a thermopile. The thermocou-
ple operates the pilot flame. Tighten the thermocouple.
The thermopile operates the main valve (ON and OFF).
Clean and/or adjust pilot for maximum flame impinge-
ment on thermocouple and thermopile.
2. Pilot will not stay lit
after carefully fol-
lowing the lighting
instructions
B. Defective automatic valve
operator
Turn valve knob to ‘Pilot’. Maintain flow to pilot; millivolt
meter should read greater than 10mV. If the reading
is okay and the pilot does not stay on, replace the gas
valve. NOTE: An interrupter block (not supplied) must be
used to conduct this test.
A. Remote switch or wires
defective
Check rocker switch and wires for proper connection.
Use jumper wires across terminals at rocker switch. If
burner lights, replace rocker switch. If okay, use jumper
wires across rocker switch wires at the valve; if burner
lights, wires are faulty or connections are bad.
3. Pilot lights, no gas
to burner, valve
knob ON, remote
switch (rocker
switch) ON
B. Thermopile may not gener-
ate sufficient voltage
1. Be sure wire connections from thermopile at gas valve
terminals are tight and thermopile is fully inserted into
pilot bracket.
2. One of the rocker switch wires may be grounded.
Remove rocker switch wires from valve terminals. If
burner now stays lit, trace rocker switch wiring from
ground. It may be grounded to the appliance or the
gas supply line.
3. Check the thermopile with a millivolt meter. Take read-
ing at thermopile (“TP” and “TP/TH”) terminals of gas
valve. Should read 325 millivolts minimum while hold-
ing valve knob depressed in PILOT position and with
rocker switch OFF. Replace faulty thermopile if reading
is below specified minimum.
C. Plugged burner orifice
Check burner orifices for debris, and remove.
D. Defective automatic valve
operator
Turn knob to ON, place rocker switch to ON, millivolt me-
ter should read greater than 10 mV. If the reading is okay
and the burner does not light, replace the valve.
A. Pilot flame may be too low
or high, (blowing or lifting),
causing the pilot to drop out
B. Possible blockage of the
vent terminal
4. Frequent pilot out-
age
Clean and/or adjust pilot flame for maximum flame im-
pingement on thermocouple and thermopile.
Check the vent terminal for blockage.
27
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Fuel Conversion Instructions
Cap
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 these instruc-
tions 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 respon-
sible 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.
Lift Open
Hi/Lo
Knob
Center Screw
CO100
Fig. 52 Remove center screw from Hi-Lo knob.
7. Insert blue painted screw when converting to natural
gas and red painted screw when converting to LP.
8. Tighten screw, replace cap.
9. Remove the rear log bracket by removing the screw.
(fig. 53)
CAUTION: The gas supply shall be shut off prior
to disconnecting the electrical power, before pro-
ceeding with the conversion.
10. Remvoe the right and left log bracket assembly by
removing the two screws which hold the burner in
place. (Fig. 53)
11.Hold the burner at the right hand side and lidft to
clear the right burner leg. Then pull to the right to
clear the injectors on the left hand side.
12. Locate pilot. (Fig. 53)
13. Replace pilot orifice.
���
Remove Screws
Rear Log Bracket
Main
Gas Line
Pilot
Gas Supply Inlet
ST226
Fig. 51 Attach the gas line to the left side of the valve.
Conversion Precautions
Before proceeding, turn control knob on valve to OFF
and turn gas supply OFF. Turn OFF any electricity that
may be going to the appliance.
Left & Right Log
Bracket Assembly
ST350
Conversion Procedure
Fig. 53 Remove rear log bracket and left and right log bracket
1. Remove stove front. Lift stove front up and then
swing bottom out and away to disengage from the
stove body. (Page 30, Fig. 59)
2. Swing open the swiveling latches at the top left and
right corners of the glass frame. (Page 31, Fig. 60)
3. Pull the top edge of the glass and frame assembly
away from the firebox face. Place the assembly out
of the way on a flat, padded surface such as a coun-
ter protected by a towel.
assembly.
Pilot Type 1
• Remove pilothood by lifitng up. (Fig. 54) NOTE:
Do not remove snap ring to remove pilot hood.
NOTE: It is not necessary to remove the pilot
tube for conversion.
• Remove pilot orifice with allen wrench. (Fig. 55)
• Install the conversion orifice.
• Reinstall pilot hood. Be sure to align hood with
4. Remove the logset from the firebox.
index tab.
5. Remove cap from HI/Lo knob. This can be accom-
plished by lifting the plastic cap off the screws. (Fig.
52)
6. Remove the screw from center of Hi/Lo knob with
small screwdriver turnign counterclockwise. (Fig. 52)
Pilot Type 2
• Loosen pilot hood by turning counterclockwise
using a 7/16” wrench. (Fig. 56) NOTE: You may
use penetrating oit to prevent pilot hood threads
from seizing up.
2828
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Pilot Hood
Pilot
Orifice
Pilot
Bracket
CO105a
CO106b
Fig. 54 Remove pilot hood.
Fig. 57 Remove pilot orifice.
Index Tab
Allen Wrench
16. Replace burner. Slide the burner in at an angle
with left side lower than the right side. slide the left
side onto the injectors, making sure the burner leg
remains at a 90° angle to the base. Lower the right
hand side down in to place. Make sure the burner is
as far left as possible and the injector shoulders are
inside the burner.
Snap Ring
NOTE: It is very critical to keep the left burner leg,
which holds the injectors, at a 90° angle to the base.
(Fig. 58) This keeps the orifices aligned with the
tubes inside the burner. Failure to do so could affect
the flame appearance and performance of the unit.
17. Place conversion label on valve
CO106a
Fig. 55 Remove pilot orifice.
18. Reinstall the irght and left log bracket assembly.
19. Reinstall rear log bracket.
Pilot Hood
20. Replace the logs.
21. Replace glass and stove front.
Index
Marks
Conversion is complete.
Pilot Bracket
CO105
Left Burner Leg
Injector Orifices
Fig. 56 Remove pilot hood. (Your pilot may have a different
appearance.)
• Remove pilot orifice with needlenose pliers. (Fig.
57) NOTE: Use a wrench to hold pilot tube in
place while removing the orifice.
90°
• Install the conversion orifice.
ST353a
• Reinstall pilot hood and tighten until mark on pilot
hood aligns withmark on pilot bracket.
Fig. 58 Remove and replace injector orifices.
14. Remove injector orifices from left burner leg using
1/2” wrench. (Fig. 58)
15. Install conversion orifices. (Refer to Table 2)
NOTE: Be sure burner leg remains at a 90° angle to
firebox base after conversion.
Table 2. Injector Orifice Size Matrix
Conversion to LP
Part # Rear
30004180 #69 / .029” 30000513 #54 / .055” 20000130
Input (BTU/h)
Minimum Maximum
Kit #
Front
Part #
20,000
28,000
30004177
29
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Maintenance
Your Jefferson Gas Heater will provide years of service
with minimal upkeep. The following procedures will help
ensure that your stove continues to function properly.
Cleaning the Glass
WARNING: Allow the glass to cool com-
pletely before attempting to clean.
Annual System Inspection
Have the entire heater and venting system inspected
annually by a qualified gas technician. Replace any
worn or broken parts.
�
�������
��������������
������������
Logset and Burner /
Cleaning and Inspection
������������������
�������������
Cleanliness is critical to the proper function of the
heater. The logset and burner must all be kept free of
dust and unobstructed by debris. Inspect these areas
before each use and clean as necessary.
��������������������
���������������
It will be necessary to clean the glass periodically. Dur-
ing 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 that the glass be cleaned
two or three times with a non-ammonia household
cleaner and warm water (we recommend gas fireplace
glass cleaner). After that the glass should be cleaned
two or three times during each heating season depend-
ing on the circumstances present.
1. Turn the burner OFF and let the heater cool com-
pletely before cleaning.
2. Lift the Stove Front up and then swing the bottom
out to disengage it from the heater shell. (Fig. 59)
3. Carefully remove the glass and frame assembly and
place it out of the way on a flat, padded surface such
as a counter protected by a towel.
4. Carefully inspect the Logs for damage. Contact your
local dealer if any damage is evident.
5. Use a soft bristled brush to sweep dust or debris
from the Logs, Pilot and Burner. Use care as the
logs are fragile and susceptible to damage.
Clean glass after first two weeks of opera-
tion.
6. Replace the glass panel and frame assembly.
7. Replace the Stove Front.
Glass Replacement
Replace glass only with CFM Corporation approved
parts. Refer to Page 33 for Replacement Parts. Refer to
Figures 59, 60 and previous instructions for removal of
the damaged glass frame.
Care of Cast Iron
An occasional dusting with a dry rag will help keep the
painted surfaces looking new. Use high-temperature
stove paints, available through your local dealer, to
touch-up areas as needed. Clean areas to be painted
with a wire brush and be sure to cover the logs, burner
and valve assembly, glass and frame assembly. Apply
the paint sparingly; two light coats of paint will give bet-
ter results than a single heavy coat.
Clean porcelain enamel surfaces with a soft, damp
cloth. Do not use abrasive cleaning agents. If neces-
sary, use only a cleaning agent formulated especially
for use on porcelain enamel surfaces.
CAUTION
TURN THE PILOT OFF BEFORE PAINTING.
ALLOW THE HEATER TO COOL COMPLETELY
BEFORE PAINTING.
ST229a
Fig. 59 Remove the Stove Front.
3030
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Inspect the Vent System Annually
Have the vent system inspected annually by a quali-
fied technician. Shut off the main gas supply before
inspecting the system. Both the inner exhaust pipe and
the outer combustion supply pipe must be checked to
confirm that they are unblocked and in good condition.
Check the Gas Flame Regularly
ST208a
To ensure that the stove is operating properly, check
the flames periodically to confirm that they match Page
24. The flames will be blue during the first 15-20 min-
utes of operation, and will gradually turn to yellow after
that.
Fig. 60 Release the latches to release the glass frame.
Gasket Replacement
The Jefferson Gas Heater uses a ‘tadpole’ type gasket
to seal between the glass panel and the frame. In time,
this gasket can become brittle and compressed and
should be replaced. New gasket is available from your
dealer.
Do not use your stove if the flame pattern differs from
that shown here. Contact your CFM Corporation dealer
or a qualified technician for help.
Stove Disassembly
Shut off the gas supply and allow the stove to cool.
Wear safety goggles and a dust mask.
If there is ever a need to remove the firebox assem-
bly from the stove shell, support the firebox with solid
stands about 6” (152 mm) tall under the left and right
outer edges of the firebox base. Do not set the firebox
assembly directly on the floor; this can damage the
control valve and/or the gas lines from the valve to the
firebox.
1. Remove the Front, Glass Frame and Glass Panel.
(Figs. 59 & 60) Remove the old gasket. Use a
razor blade to separate the glass and gasket from
the frame, and to clean the glass of any remaining
cement or bits of gasket. Use a cold chisel if neces-
sary.
Before removing the firebox from the shell, disconnect
the on/off switch wires from the valve. If the assembly
includes the optional fan, disconnect the fan rheostat.
If the installation includes a wall thermostat, disconnect
the thermostat leads from the valve.
2. Determine the correct length of gasket by laying it
out around the edge of the glass. Allow an extra 1
- 2” (25-50mm). Mark the spot to be cut. Use a utility
knife.
3. Starting on a long edge, remove about 6” of the pro-
tective paper strip and apply the flat adhesive face
of the gasket around the outside-facing edge of the
panel. Continue around the panel, applying a bout 6”
at a time and being careful to not stretch the mate-
rial. Do not overlap the gasket ends. (Fig. 61)
Disconnection and reconnection to the gas line should
only be done by a qualified gas service technician.
Upon reinstallation, the vent system must be sealed to
the firebox as shown in the installation section, Page
14. Also be sure the logs are placed in the firebox cor-
rectly, as shown on Page 21.
4. Apply a thin bead of high temperature silicone
rubber sealant along the inside corner of the glass
frame, all around the perimeter. Place the flat
gasketed side of the glass panel back into the steel
frame. Pinch the rounded inside-facing gasket mate-
rial to bulk it up.
5. Replace the glass frame and front panel as previ-
ously described.
ST179
Fig. 61 Wrap the gasket material around the outside edge of
the glass.
30004177
31
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Wiring Diagrams
FAN
ON
OFF
POWER
CORD
On/Off Switch
Wiring
WHT
BLK
B
L
K
TP/TH
Chassis
Ground
TP
TH
GRN
Black
K
L
ST124b
B
BLK
Thermostat
(Optional)
Optional Thermostat
Wiring
FAN JUNCTION BOX
Strain Relief
TP/TH
ON / OFF
Rheostat
TP
TH
Black
Snapstat
ST124c
WHT
BLK
K
L
Fig. 62 On/off switch and optional thermostat circuit.
B
GRN
NOTE: IF ANY OF THE ORIGINAL WIRE, AS SUP-
PLIED WITH THE APPLIANCE, MUST BE RE-
PLACED, IT MUST BE REPLACED WITH TYPE
SF-2, 200°C WIRE OR ITS EQUIVALENT.
RHEOSTAT / SNAPSTAT
BOX
Chassis Ground
ST153
Drafthood Adapter
Harness
Schematic Diagram
MOTOR
Remote Wall Switch or
ON/OFF Rocker Switch
BLK
SNAPSTAT
WHT
BLK
ON/OFF
RHEOSTAT
TH
Gas
Valve
TP
ST236
TH
TP
ST943
Fig. 64 Fan circuit.
Fig. 63 Draft Hood Adapter (FSDHAG) wiring. Used on
RN/RP models only.
3232
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
4
2
6
1a
5
3
1b
1c
11
9
1d
12
8
1e
10
14
16
18
15
17
20a,b
22 23
24
25
21
19
30
26
31
29
27
34
33
32
37
36
CEMENT
40
CFM Corporation reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time,
without notice.
Jefferson Direct Vent/Natural Vent Gas Heater
Model: JDVBRN
Ref. Description
1. Gas Log Set
1a. Log, Back
1b. Log, Left Upper
1c. Log, Right Upper
1d. Log, Left
1e. Log, Right
2. Lava Rocks Burner
3. Top
JDVB
20002182
20002183
20002187
20002186
20002185
20002184
57897
30000680
30000685
30000665
30000682
4. Grille
5. Screen,Grille
6. Left End
30004177
33
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
Jefferson Direct Vent/Natural Vent Gas Heater
Model: JDVBRN
Ref. Descripción
JDVB
7. Right End
8. Front
9. Glass
30000681
30000683
20002120
20002117
1203702
30000686
1408818
30000679
5004240
10. Glass Frame Assembly
11. Gasket, Glass - Med. Knit
12. Door, Control
13. Door Magnet (not shown)
14. Leg
15. Front Handle Assembly
16. Handle Damper - Maplewood - Blk
17. Burner Housing Assembly NG/LP
18. Grate, Burner
19. Manifold Assembly
20a. Valve - Nova SIT820.662 RN
20b. Valve - Nova SIT820.653 RP
1600664
20002214
20002167
20003739
20010563
20010645
21. Pilot Assembly 3-Way N/DV RN 0.199.706
Pilot Assembly 3-Way N/DV RP 0.199.703
10002264
10002265
22. Thermopile 24”
53373
7531137
23. Electrode Ignitor w/cable SIT24
24. Pilot Top Convertible
10001297
10002266
25. Thermopile 18” RS
51827
7533113
26. Nut Electrode SIT #0.974.144
27. Tubing Pilot w/Fittings 1/8 x 24”
28a. Orifice Hood - #69 - Front - LP (not shown)
28b. Orifice Hood - #54 - Front - NG (not shown)
28c. Orifice Hood - #54 - Rear - LP (not shown)
28d. Orifice Hood - #44 - Rear - NG (not shown)
29. Wiring Harness - FSDV32RN/JDV
30. Switch ON/OFF - RN/RP Models
31. Bracket, Right Log
32. Bracket, Left Log
33. Gasket, Base Pan - JDV
34. Gasket, Base Pan Inner
35. Heat Exchanger Door Gasket
36. Sensor 2450 CMG-8184-0032
37. Furnace Cement
38. Switch Bracket (not shown)
39. 2¹⁄₄” Restrictor (not shown)
40. Ignitor Piezo w/Nut SIT
57886
10001296
30000513
20000130
20000130
30000334
10002582
30000874
20002166
20002165
20002282
20002566
1203687
10002013
1206122
53821
1409170
52464
41. Bracket Piezo Ignitor (not shown)
42. Relief Doors
20010876
30000060
Fuel Conversion Kits
Conversion Kit, NG to LP - JDVBRN
Kit # 30004180
3434
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
Optional Accessories
Fan Kits
Remote Controls
FK28 Fan
The remote control allows you to turn the heater on or
off from anywhere in the room. Refer to Page 32 for
wiring diagrams. These remote controls are for use with
RN/RP models.
The FK28 fan helps distribute heated air from within
the firebox out into the room. The fan is controlled by a
snapstat that turns power on and off as the firebox tem-
perature rises above and falls below a preset tempera-
ture. A rheostat provides for variable fan speeds.
Model
Functions Controlled
RC1
RC2
IMTFK
ON/OFF
ON/OFF and Temperature
Wall mounted thermostat control
Specifications
115 Volt / 60Hz / .75 Amps
Maintenance
Decorative Rings
7” brass or charcoal gray rings are available to add a
decorative touch to the exposed stove pipe.
The fan itself does not require regular maintenance,
however, periodic cleaning of the fan and the surround-
ing area is required.
Model
Description
7FSDRG/4
7FSDRP/4
7” Charcoal Gray Rings (4)
7” Polished Brass Rings (4)
Installation
Refer to Page 14 for installation instructions.
30004177
35
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
3636
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent /Natural Vent Gas Heater
30004177
37
Download from Www.Somanuals.com. All Manuals Search And Download.
Jefferson Direct Vent/Natural Vent Gas Heater
3838
30004177
Download from Www.Somanuals.com. All Manuals Search And Download.
CFM CORPORATION WARRANTY FOR ALL CENTURY GAS PRODUCTS
TWO YEAR LIMITED WARRANTY
This Warranty gives you specific legal rights and you may also have other rights that vary in each State or Province.
1. CFM Corporation (hereafter referred to as CFM) warrants to the original consumer/purchaser that, subject to rea-
sonable and necessary maintenance, your new gas appliance (exclusive of exterior paint, pipe and accessories)
will be free from defects in materials and workmanship for two years from the date of purchase and while under
original owner.
2. This warranty is extended only to the original retail purchaser.
3. This warranty covers only the cost of part(s) required to restore this heater to proper operating condition. Warranty
part(s) MUST be obtained through Authorized dealers/distributors of CFM who will provide original factory replace-
ment parts. Failure to use original factory replacement parts voids this warranty.
4. The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished
with the unit.
5. This warranty is effective only as to new gas appliances which have not been altered, changed, repaired or treated
since shipment from the factory, unless such modifications have been authorized in writing by CFM.
6. This warranty does not apply to parts:
i) that fail or become damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by
improper installation.
ii) that have been operated in an atmosphere contaminated by chemicals damaging to the product (e.g. chlorine,
fluorine)
iii) that have been subjected to dampness or condensation for prolonged periods, or
iv) that have been damaged due to water or weather.
7. Travel, diagnostic cost, labor, transportation and any and all such other costs related to repairing a defective heater
will be the responsibility of the owner.
8. To make claim under this warranty, the original consumer purchaser shall notify CFM at 1-800-668-5323, within ten
(10) days of the discovery of the alleged defect and provide proof of purchase
9. CFM shall, at its option, repair or replace the defective parts, after inspection and determination of the defect. The
purchaser shall be liable for all costs and incidental expenses in respect of shipping, labor or transportation for war-
ranty service.
10. CFM shall not be liable for any incidental, consequential, special or indirect damages arising out of a defect or a
breach of this warranty and includes:
i) downdrafts or spillage caused by environmental conditions such as nearby trees, hills, buildings, rooftops;
ii) inadequate ventilation or negative air pressure caused by mechanical systems such as furnaces, fans, clothes
dryers, etc.
Some States and Provinces do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation or exclusion may not apply to you.
NOTE:
Glass doors are not warranted for breakage due to misuse or accident. Brass parts should be cleaned with a damp,
soft cloth only. Brass cleaners should not be used. Masonry cleaners and mortar mix may corrode the brass finish.
CFM will not be responsible for, nor will it warrant any brass parts that are damaged by external chemicals or down-
draft conditions.
CFM Corporation
Toll Free: 1-800-668-5323
KEEP THIS WARRANTY
SERIAL #
MODEL #
DATE PURCHASED
30004177
39
Download from Www.Somanuals.com. All Manuals Search And Download.
Efficiency Ratings
Model
EnerGuide Ratings
Fireplace Efficiency (%)
JDVBRN
JDVBRP
60.7
60.7
CFM Corporation
2695 Meadowvale Blvd. • Mississauga, Ontario, Canada L5N 8A3
Download from Www.Somanuals.com. All Manuals Search And Download.
|