Superior SVFS32NRK Quick start guide

For more information, visit www.lennoxhearthproducts.com
WARNING: If the information in this manual is not
followed exactly, a re or explosion may result causing
property damage, personal injury, or loss of life.
— Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the re
department.
— Installation and service must be performed by a quali-
ed installer, service agency, or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
UNVENTED (VENT-FREE) GAS FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
SVFS32NRK, SVFS32PRK, SVFS36NRK, SVFS36PRK,
REMOTE-READY FIREPLACE SYSTEM
Shown with optional cabinet mantel with hearth base and trim accessories.
NOTE: this product ships in two boxes. Box 1 includes the replace. Box 2 includes the logs.
PFS
®
US
fire-parts.com

www.lennoxhearthproducts.com 126543-01A2
SAFETY
TABLE OF CONTENTS
Safety .................................................................. 2
Product Identication........................................... 4
Local Codes......................................................... 5
Unpacking............................................................ 5
Product Features................................................. 5
Air For Combustion and Ventilation ..................... 6
Installation ........................................................... 8
Operation........................................................... 21
Inspecting Burners............................................. 23
Cleaning and Maintenance................................ 24
Troubleshooting................................................. 25
Wiring Diagram.................................................. 29
Specications .................................................... 29
Replacement Parts............................................ 29
Service Hints ..................................................... 29
Technical Service............................................... 29
Parts .................................................................. 30
Accessories ....................................................... 35
WARNING: Improper
installation, adjustment,
alteration, service, or
maintenance can cause
injury or property dam-
age. Refer to this manual
for correct installation
and operational proce-
dures. For assistance or
additional information
consult a qualified in-
staller, service agency, or
the gas supplier.
WARNING: This is an
unvented gas-red heat-
er. It uses air (oxygen)
from the room in which
it is installed. Provisions
for adequate combustion
and ventilation air must
be provided. Refer to Air
for Combustion and Ven-
tilation section on page 6
of this manual.
This appliance may be in-
stalled in an aftermarket,*
permanently located,
manufactured (mobile)
home, where not prohib-
ited 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.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer
WARNING: This product
contains and/or generates
chemicals known to the State
of California to cause cancer or
birth defects, or other reproduc-
tive harm.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, op-
erate, or service this heater.
Improper use of this heater can
cause serious injury or death
from burns, fire, explosion,
electrical shock, and carbon
monoxide poisoning.
fire-parts.com

www.lennoxhearthproducts.com
126543-01A 3
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs
of carbon monoxide poisoning resemble the
u, with headaches, dizziness, or nausea. If
you have these signs, the heater may not be
working properly. Get fresh air at once! Have
heater serviced. Some people are more af-
fected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inu-
ence of alcohol, and those at high altitudes.
Natural and Propane/LP Gas: Natural and
propane/LP gases are odorless. An odor-
making agent is added to the gas. The odor
helps you detect a gas leak. However, the
odor added to the gas can fade. Gas may be
present even though no odor exists.
Make certain you read and understand all
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this heater.
WARNING: Any change to
this heater or its controls can
be dangerous.
WARNING: Do not use a
blower insert, heat exchanger
insert, or other accessory not ap-
proved for use with this heater.
WARNING: Do not allow fans
to blow directly into the replace.
Avoid any drafts that alter burner
ame patterns. Ceiling fans can
create drafts that alter burner
ame patterns. Altered burner
patterns can cause sooting.
Due to high temperatures, the
appliance should be located out
of trafc and away from furniture
and draperies.
SAFETY
Continued
Do not place clothing or other
ammable material on or near
the appliance. Never place any
objects on the heater.
Fireplace front and screen be-
come very hot when running re-
place. Keep children and adults
away from hot surfaces to avoid
burns or clothing ignition. Fire-
place will remain hot for a time
after shutdown. Allow surfaces
to cool before touching.
Carefully supervise young chil-
dren when they are in the room
with replace. When using the
optional hand-held remote ac-
cessory, keep selector switch
in the OFF position to prevent
children from turning on burners
with remote.
You must operate this replace
with the replace screen and
hood in place. Make sure re-
place screen and hood are in
place before running heater.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline, and other am-
mable vapors and liquids.
1. 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.
2. Do not place propane/LP supply tank(s)
inside any structure. Locate propane/LP
supply tank(s) outdoors (propane/LP units
only).
fire-parts.com

www.lennoxhearthproducts.com 126543-01A4
SAFETY
Continued
3. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not
use any phone in your building
• immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions
• if you cannot reach your gas supplier,
call the re department
4. This replace shall not be installed in a
bedroom or bathroom.
5. Do not use this replace as a wood-burn-
ing replace. Use only the logs provided
with the replace.
6. Do not add extra logs or ornaments such
as pine cones, vermiculite, or rock wool.
Using these added items can cause soot-
ing. Do not add lava rock around base.
Rock and debris could fall into the control
area of replace.
7. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 24.
8. Before using furniture polish, wax, carpet
cleaner, or similar products, turn heater
off. If heated, the vapors from these prod-
ucts may create a white powder residue
within burner box or on adjacent walls or
furniture.
9. This replace needs fresh air ventilation to
run properly. This replace has an Oxygen
Figure 1 - Log Base Assembly
Top Outer Casing
Figure 2 - Fireplace
Log Set
Base
Assembly
Front
Burner
Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the re-
place if enough fresh air is not available.
See Air for Combustion and Ventilation,
page 6. If replace keeps shutting off, see
Troubleshooting, page 25.
10. Do not run replace
• where ammable liquids or vapors are
used or stored
• under dusty conditions
11. Do not use this replace to cook food or
burn paper or other objects.
12. Do not use replace if any part has been
exposed to or under water. Immediately
call a qualied service technician to in-
spect the replace and to replace any part
of the control system and any gas control
which has been under water.
13. Do not operate fireplace if any log is
broken. Do not operate replace if a log
is chipped (dime-sized or larger).
14. Turn fireplace off and let cool before
servicing. Only a qualied service person
should service and repair replace.
15. Operating replace above elevations of
4,500 feet could cause pilot outage.
16. To prevent performance problems in
propane/LP units, do not use propane/LP
fuel tanks of less than 100 lbs. capacity
(propane/LP units only).
17. Provide adequate clearances around air
openings.
PRODUCT IDENTIFICATION
Top panel
Assembly
Fireplace
Hood
Bottom Panel
Assembly
Screen
Assembly
Magnet
fire-parts.com

www.lennoxhearthproducts.com
126543-01A 5
LOCAL CODES
UNPACKING
Install and use replace with care. Follow all
local codes. In the absence of local codes,
use the latest edition of The National Fuel
Gas Code ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
Note: Where listed vented decorative logs
are required, thermostat operation is not
permitted.
State of Massachusetts: The installation
must be made by a licensed plumber or
gas tter in the Commonwealth of Mas-
sachusetts.
Sellers of unvented propane or natural
gas-red supplemental room heaters shall
provide to each purchaser a copy of 527
CMR 30 upon sale of the unit.
Vent-free gas products are prohibited for
bedroom and bathroom installation in the
Commonwealth of Massachusetts.
CAUTION: Do not remove the
data plates attached to the heater
base assembly. The data plates
contain important warranty and
safety information.
1. With utility knife, cut the carton all the way
around above the staples on the bottom
tray. Lift the carton off the heater. Remove
packing.
Note: The hood and two smooth panels
are located in the packing on the right hand
side of the heater front. Lift the heater off
the bottom tray.
2. Locate two screws above top corners of
the replace screen. Remove and discard
these screws. Push the bottom corners of
the screen in and release. The screen will
pop out at the bottom. Grasp the bottom
of the screen, lift the screen up and pull
out to remove.
3. Remove protective packaging applied to
logs, log base assembly, and replace.
4. Remove replace hood and two smooth
panels from carton inserts.
5. Check all items for any shipping damage.
If damaged, promptly inform dealer where
you bought replace.
PRODUCT FEATURES
OPERATION
This vent-free replace is clean burning. It
requires no outside venting. There is no heat
loss out a vent or up a chimney. Heat is gen-
erated by both realistic ames and glowing
embers. When used without the blower, the
replace requires no electricity making it ideal
for emergency backup heat.
SAFETY DEVICE
This replace has a pilot with an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS/pilot is a required feature
for vent-free room heaters. The ODS/pilot
system shuts off the replace if there is not
enough fresh air.
PIEZO IGNITION SYSTEM
This replace has a piezo ignitor. This sys-
tem requires no matches, batteries, or other
sources to light replace.
OPTIONAL REMOTE CONTROL
ACCESSORY
There are four optional remote controls (not
included) that can be purchased separately for
this log heater:
• wall switch
• wall thermostat
• hand-held ON/OFF remote
• hand-held thermostat remote
See Accessories, page 35.
BLOWER ASSEMBLY ACCESSORY
This replace includes a blower assembly. The
blower operates thermostatically and features
a variable speed control. The blower circulates
heated air from the replace into the room.
fire-parts.com

www.lennoxhearthproducts.com 126543-01A6
Unusually tight construction is dened as
construction where:
a. walls and ceilings exposed to the out-
side atmosphere have a continuous
water vapor retarder with a rating of one
perm (6 x 10-11 kg per pa-sec-m2) or less
with openings gasketed or sealed and
b. weather stripping has been added on
openable windows and doors and
c. caulking or sealants are applied to
areas such as joints around window
and door frames, between sole plates
and oors, between wall-ceiling joints,
between wall panels, at penetrations for
plumbing, electrical, and gas lines, and
at other openings.
If your home meets all of the three criteria
above, you must provide additional fresh air.
See Ventilation Air From Outdoors, page 8.
If your home does not meet all of the three
criteria above, proceed to Determining
Fresh-Air Flow For Heater Location.
Conned and Unconned Space
The National Fuel Gas Code, ANSI Z223.1/
NFPA 54 denes a conned space as a space
whose volume is less than 50 cubic feet per
1,000 Btu per hour (4.8 m3 per kw) of the ag-
gregate input rating of all appliances installed in
that space and an unconned space as a space
whose volume is not less than 50 cubic feet per
1,000 Btu per hour (4.8 m3 per kw) of the ag-
gregate input rating of all appliances installed in
that space. Rooms communicating directly with
the space in which the appliances are installed*,
through openings not furnished with doors, are
considered a part of the unconned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
DETERMINING FRESH-AIR FLOW
FOR FIREPLACE LOCATION
Determining if You Have a Conned or
Unconned Space
Use this work sheet to determine if you have
a conned or unconned space.
Space: Includes the room in which you will install
replace plus any adjoining rooms with door-
less passageways or ventilation grills between
the rooms.
1. Determine the volume of the space (length
x width x height).
Length x Width x Height =__________cu. ft.
(volume of space)
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall
not be installed in a room or
space unless the required vol-
ume of indoor combustion air
is provided by the method de-
scribed in the National Fuel Gas
Code, ANSI Z223.1/NFPA 54, the
International Fuel Gas Code, or
applicable local codes. Read the
following instructions to insure
proper fresh air for this and
other fuel-burning appliances
in your home.
Today’s homes are built more energy efcient
than ever. New materials, increased insulation,
and new construction methods help reduce
heat loss in homes. Home owners weather
strip and caulk around windows and doors to
keep the cold air out and the warm air in. Dur-
ing heating months, home owners want their
homes as airtight as possible.
While it is good to make your home energy
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion
and ventilation.
Exhaust fans, replaces, clothes dryers, and
fuel burning appliances draw air from the house
to operate. You must provide adequate fresh
air for these appliances. This will insure proper
venting of vented fuel-burning appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on pages 6 through 8 will help
you classify your space and provide adequate
ventilation.
Unusually Tight Construction
The air that leaks around doors and windows
may provide enough fresh air for combustion
and ventilation. However, in buildings of un-
usually tight construction, you must provide
additional fresh air.
fire-parts.com

www.lennoxhearthproducts.com
126543-01A 7
Example: Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2,560 cu. ft.
(volume of space)
If additional ventilation to adjoining room
is supplied with grills or openings, add the
volume of these rooms to the total volume
of the space.
2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2,560 cu. ft. (volume of space) x
20 = 51,200 (maximum Btu/Hr the space can
support)
3. Add the Btu/Hr of all fuel burning appliances
in the space.
Vent-free replace _________ Btu/Hr
Gas water heater* _________ Btu/Hr
Gas furnace _________ Btu/Hr
Vented gas heater _________ Btu/Hr
Gas replace logs _________ Btu/Hr
Other gas appliances* +________ Btu/Hr
Total = ________ Btu/Hr
* Do not include direct-vent gas appliances.
Direct-vent draws combustion air from the
outdoors and vents to the outdoors.
Example:
Gas water heater _____________ Btu/Hr
Vent-free replace + ___________ Btu/Hr
Total =____________ Btu/Hr
4. Compare the maximum Btu/Hr the space
can support with the actual amount of
Btu/Hr used.
_______ Btu/Hr (maximum the space can
support)
_______ Btu/Hr (actual amount of Btu/Hr
used)
Example: 51,200 Btu/Hr (maximum the
space can support)
73,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the example is a conned space
because the actual Btu/Hr used is more than the
maximum Btu/Hr the space can support. You
must provide additional fresh air. Your options
are as follows:
A. Rework worksheet, adding the space of an
adjoining room. If the extra space provides an
unconned space, remove door to adjoining
room or add ventilation grills between rooms.
See Ventilation Air From Inside Building.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors page 8.
C. Install a lower Btu/Hr replace, if lower Btu/
Hr size makes room unconned.
AIR FOR COMBUSTION AND VENTILATION
Continued
40,000
33,000
73,000
Figure 3 - Ventilation Air from Inside
Building
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills Into
Adjoining
Room,
Option 1
12"
12"
If the actual Btu/Hr used is less than the maxi-
mum Btu/Hr the space can support, the space is
an unconned space. You will need no additional
fresh air ventilation.
WARNING: If the area in which
the heater may be operated does
not meet the required volume for
indoor combustion air, combus-
tion and ventilation air shall be
provided by one of the methods
described in the National Fuel
Gas Code,ANSI Z223.1/NFPA54,
the International Fuel Gas Code,
or applicable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" of the
ceiling and one within 12" of the oor on the
wall connecting the two spaces (see options
1 and 2, Figure 3). You can also remove door
into adjoining room (see option 3, Figure 3).
Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.
fire-parts.com

www.lennoxhearthproducts.com 126543-01A8
INSTALLATION
CAUTION: This replace cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to replace. Installing
replace next to vinyl or cloth
wall coverings or operating
heater where impurities (such
as, but not limited, to tobacco
smoke, aromatic candles, clean-
ing uids, oil or kerosene lamps,
etc.) in the air exist, may discolor
walls or cause odors.
Note: Your replace is designed to be used in
zero clearance installations. Wall or framing
material can be placed directly against any
exterior surface on the rear, sides, or top of
your replace, except where standoff spac-
ers are integrally attached. Where standoff
spacers are attached to your fireplace,
combustible material (studs and wall board)
may be place on top and above the top of
the standoffs.
Use the dimensions shown for rough openings
to create the easiest installation. See Built-In
Fireplace Installation, page 11.
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is benecial, installing
replace in rooms without enough ventilation
air may cause mildew to form from too much
moisture. See Air for Combustion and Ventila-
tion, page 6.
IMPORTANT: Make sure the replace is level. If
replace is not level, log set will not work properly.
Figure 4 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent openings: one within 12" of the ceiling
and one within 12" of the oor. Connect these
items directly to the outdoors or spaces open
to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation for required size
of ventilation grills or ducts.
IMPORTANT: Do not provide openings for
inlet or outlet air into attic if attic has a thermo-
stat-controlled power vent. Heated air entering
the attic will activate the power vent.
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your pri-
mary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
WARNING: A qualied ser-
vice person must install re-
place. Follow all local codes.
WARNING: Never install the
replace
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other ammable
objects are less than 36" from
the front and 42" from the top
of replace. For side clear-
ances see Figure 8, page 10
• in high trafc areas
• in windy or drafty areas
AIR FOR COMBUSTION AND VENTILATION
Continued
fire-parts.com

www.lennoxhearthproducts.com
126543-01A 9
Figure 5 - Installing Hood
Screw
Hood
Rail
INSTALLATION
Continued
Figure 6 - Assembling Perimeter Trim
Side Trim
Slot
Mitered
Edge
Slot
Shim
Set Screws
Adjusting
Plate
Assembled
Trim
Top
Trim
Figure 7 - Attaching Perimeter Trim to
Fireplace
Trim
Hanging
Screws
Hanging
Notches
on Trim
Mitered
Edge
ASSEMBLING AND ATTACHING
OPTIONAL PERIMETER TRIM
IMPORTANT: If you are recessing the rebox
in a wall, do not attach trim at this time. See
Built-In Fireplace Installation, page 11.
Note: These instructions show assembling
and attaching trim to replace.
CHECK GAS TYPE
Use the correct gas type (natural or propane/
LP) for your replace. If your gas supply is not
correct, do not install replace. Call dealer
where you bought replace for proper type
replace.
WARNING: This appliance is
equipped for natural or propane/
LP gas but not both. Gas type is
indicated on rating plate. Field
conversion is not permitted.
ELECTRICAL HOOKUP
This replace includes a blower which must
be connected to either a wall receptacle or
the electrical receptacle that is included within
the replace. If the receptacle included with
the replace is to be used, it must be wired
to a 120 volt supply by a certied electrician.
OPTIONAL PANELS
Each replace is shipped with louvered panels
installed. Smooth panels are also shipped
with this replace and be used if desired.
They allow for a different appearance. The
smooth panels may be covered with noncom-
bustible materials such as ceramic tile or rock.
INSTALLING HOOD
Install hood to rail already installed in replace
as shown in Figure 5. Use 3 Phillips screws
provided.
1. Remove packaging from three pieces
of trim.
2. Locate four screws, two adjusting plates
with set screws, and two shims in the
hardware packet.
3. Align shim under adjusting plate as shown
in Figure 6.
4. Slide one end of adjusting plate/shim
in slot on mitered edge of top trim (see
Figure 6).
5. Slide other end of adjusting plate/shim
in slot on mitered edge of side trim (see
Figure 6).
6. While firmly holding edges of trim to-
gether, tighten both set screws on the
adjusting plate with slotted screwdriver.
7. Repeat steps 1 through 6 for other side.
8. Tighten trim hanging screws (#10 x 6.25
shoulder) into holes in cabinets. Place
the assembled trim onto replace cabinet.
Align hanging notches on trim with hang-
ing screws on side of replace (see Figure
7). Push trim rmly into place, sliding
hanging notches over hanging screws.
fire-parts.com

www.lennoxhearthproducts.com 126543-01A10
INSTALLATION
Continued
2. Install a properly grounded, 120 volt three-
prong electrical outlet at replace location
if an outlet is not there. If possible, locate
outlet so cabinet mantel will cover it when
installed (see Figure 9).
3. Install gas piping to replace location. This
installation includes an approved exible
gas line (if allowed by local codes) after
the equipment shutoff valve. The exible
gas line must be the last item installed on
the gas piping. See Installing Gas Piping
to Fireplace Location, page 13.
4. Place hearth base accessory against wall at
installation location. Cut an access hole in
hearth top to run exible gas line to replace
(see Figure 9). Make sure to locate access
hole so cabinet mantel will cover it when
installed.
Note: You can secure base to oor using
wood screws. Countersink screw heads
and putty over.
5. Route exible gas line through access
hole in hearth base.
6. Center cabinet mantel on hearth base (see
Figure 10, page 11). Make sure mantel is
ush against wall.
7. Place cardboard or other protective mate-
rial on top of hearth base. Carefully set
replace on protective material, with back
of replace inside mantel opening.
8. Attach exible gas line from replace gas
regulator to gas supply. See Connecting
Fireplace to Gas Supply, page 14.
9. Route blower electrical cord through ac-
cess holes in either side of replace.
CONVENTIONAL FIREPLACE
INSTALLATION
Conventional installation of this fireplace
involves installing replace along with the
corner, face, or cabinet mantel with hearth
base accessories against a wall in your home.
Follow the instructions in this section to install
the replace in this manner.
1. Assemble cabinet mantel, hearth base,
and trim accessories. Assembly instruc-
tions are included with each accessory. Figure 9 - Placing Hearth Base
Accessory Against Wall
Electrical Outlet
Hearth Base
Rigid Pipe and Gas
Shutoff Valve
Gas Line
Access Hole
INSTALLATION CLEARANCES
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
oor, ceiling, and adjoining wall.
Carefully follow the instructions below. This
will ensure safe installation.
Minimum Clearances For Side Combustible
Material, Side Wall, and Ceiling
A. Clearances from the side of the replace
cabinet to any combustible material and
wall should follow diagram in Figure 8.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This com-
bustible material must be 4" from the side
of the replace opening (see Figure 8).
B. Clearances from top of replace opening
to ceiling should not be less than 42".
MINIMUM CLEARANCE TO
COMBUSTIBLE MATERIALS
Top 0", Left and Right Sides 16",
Bottom and Rear 0", Front 36"
*Minimum 16" from Side Wall
Figure 8 - Minimum Clearance for
Combustible to Wall
*
Example
fire-parts.com

www.lennoxhearthproducts.com
126543-01A 11
Figure 10 - Installing Cabinet Mantel
Cabinet
Mantel
Figure 11 - Location of Nailing Flange
Nailing
Flange
10. Carefully insert replace into cabinet mantel.
Be careful not to scratch or damage hearth
base, cabinet mantel, or any laminate trim
on hearth base. Remove protective material
from top of hearth base and from front of
replace (if any).
Note: You can secure replace to hearth
or oor. Remove burner assembly. Locate
screw holes in bottom of base. Tighten
wood screws through these holes and into
hearth or oor. Replace burner assembly.
11. Check all gas connections for leaks. See
Checking Gas Connections, page 15.
INSTALLATION
Continued
Figure 12 - Inserting Fireplace Into
Cabinet Mantel
BUILT-IN FIREPLACE
INSTALLATION
Built-in installation of this replace involves
installing replace into a framed-in enclosure.
This makes the front of replace ush with wall.
If installing a mantel above the replace, you
must follow the clearances shown in Figure
16, page 12. Follow the instructions below to
install the replace in this manner.
1. Frame in rough opening. Use dimensions
shown in Figure 13 for the rough opening.
If installing in a corner, use dimensions
shown in Figure 14, Figure 12, for the
rough opening.
Figure 13 - Rough Opening for Installing
in Wall
Rough Opening Dimensions for Built-in
Installation
Model Front Width
(Inside to Inside) Height Depth
32" 34 7/8"36 3/4"16 1/4"
36" 41 1/2"40 1/2"20 3/4"
Depth
(Minimum)
Width
(Inside to Inside)
Height
fire-parts.com

www.lennoxhearthproducts.com 126543-01A12
INSTALLATION
Continued
2. Install gas piping into replace location.
This installation includes an approved ex-
ible gas line (if allowed by local codes) after
the equipment shutoff valve. The exible
gas line must be the last item installed on
the gas piping. See Installing Gas Piping
to Fireplace Location, page 13.
3. Carefully set replace in front of rough
opening with back of replace inside wall
opening.
4. Carefully insert fireplace into rough
opening.
5. Attach exible gas line to gas supply.
See Connecting Fireplace to Gas Supply,
page 14.
6. Attach replace to wall studs using nails
or wood screws through holes in nailing
ange (see Figure 15).
Figure 14 - Rough Opening for Installing
in Corner
Figure 15 - Attaching Fireplace to Wall
Studs
Nailing
Flange
Nails or
Wood
Screws
Figure 16 - Minimum Mantel Clearances
for Built-In Installation
7. Check all gas connections for leaks. See
Checking Gas Connections, page 15.
8. Plug electrical cord into electrical outlet
installed in step 2.
9. Install trim after nal nishing and/or paint-
ing of wall (see Figure 7, page 9).
IMPORTANT: When nishing your rebox,
combustible materials such as wall board,
gypsum board, sheet rock, drywall, plywood,
etc. may be butted up next to the sides and top
of the rebox. Combustible materials should
never overlap the rebox front facing.
WARNING: Do not allow any
combustible materials to overlap
the rebox front facing.
IMPORTANT: Noncombustible materials such
as brick, tile, etc. may overlap the front facing,
but should never cover any necessary open-
ings like louvered slots or screen assembly.
WARNING: Do not allow
noncombustible materials to
cover any necessary openings
like louvered slots.
WARNING: Use only noncom-
bustible mortar or adhesives when
overlapping the front facing with
noncombustible facing material.
55 5/8"
39 3/8"
34 1/2"
27 3/4"
0" CLEARANCE
0" CLEARANCE
*10 1/2"*10 1/2"
* These dimensions allow for min. Clearances to
a 45° projected side wall. However, clearances
to projected mantel trims and facings are allowed
within a min. Of 16" to a perpenducular wall as
shown in figure 5, on page 10.
*14 1/2"
50 3/8"
71 1/4"
35 5/8"
41 1/2"
0" CLEARANCE
48"
82"
58"
*17"
41"
*17"
FOR 32" MODELS
FOR 36" MODELS
FOR 42" MODELS
Figure
a
Figure
b
Supplied
Firebox Hood
Must Be Used
at All Times
Wire-mesh
Screen
Firebox
Noncombustible
Material May
Project Off this
Surface above
the Firebox Hood
Mantel Shelf
Note: Any portion of the
mantel shelf must NOT
extend beyond this profile.
12" 16" 20"
1
1
/
2
"
6
3
/ 4 "
12"
Note: All vertical
measurements are
from top of fireplace
hood opening to
bottom of mantel shelf.
These minimum
clearances replace any
other recommended
clearances supplied
with your ANSI Z21.11.2
approved gas logs.
Wall board or facing
material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments or
other similar projec-
tions off of the facing
material.
Framing
Material
fire-parts.com

www.lennoxhearthproducts.com
126543-01A 13
INSTALLATION
Continued
WARNING: Never connect
natural gas replace to private
(non-utility) gas wells. This
gas is commonly known as
wellhead gas.
Installation Items Needed
Before installing replace, make sure you
have the items listed below.
• external regulator for propane/LP unit only
(supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap (optional)
• tee joint
• pipe wrench
• approved exible gas line with gas con-
nector (if allowed by local codes) (not
provided)
* A equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge
connection. Purchase the optional equipment
shutoff valve from your dealer.
For propane/LP units, the installer must
supply an external regulator. The external
regulator will reduce incoming gas pressure.
You must reduce incoming gas pressure to
between 11" and 14" of water. If you do not re-
duce incoming gas pressure, heater regulator
damage could occur. Install external regulator
with the vent pointing down as shown in Figure
17, page 14. Pointing the vent down protects
it from freezing rain or sleet.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" diameter or greater to allow
proper gas volume to replace.
If pipe is too small, undue loss
of volume will occur.
Mantel Clearances for Built-In
Installation
If placing mantel above built-in replace, you
must meet minimum clearance between man-
tel shelf and top of replace opening.
NOTICE: If your installation does
not meet the minimum clear-
ances shown, you must do one
of the following:
• raise the mantel to an accept-
able height
• remove the mantel
NOTICE: Surface temperatures
of adjacent walls and mantels
become hot during operation.
Walls and mantels above the
firebox may become hot to
the touch. If installed properly,
these temperatures meet the
requirement of the national
product standard. Follow all
minimum clearances shown in
this manual.
INSTALLING GAS PIPING TO
FIREPLACE LOCATION
WARNING: This appliance
requires a 3/8" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualified
service person must connect
replace to gas supply. Follow
all local codes.
CAUTION: Never connect
propane/LP replace directly
to the propane/LP supply. This
replace requires an external
regulator (not supplied). Install
the external regulator between
the replace and propane/LP
supply.
fire-parts.com

www.lennoxhearthproducts.com 126543-01A14
Installation must include an equipment shutoff
valve, union, and plugged 1/8" NPT tap. Lo-
cate NPT tap within reach for test gauge hook
up. NPT tap must be upstream from replace
(see Figure 18).
IMPORTANT: Install equipment shutoff valve
in an accessible location. The equipment
shutoff valve is for turning on or shutting off
the gas to the appliance.
Check your building codes for any special
requirements for locating equipment shutoff
valve to replaces.
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from
going into pipe. Excess sealant in pipe could
result in clogged replace valves. Never use
sealant on are threads.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We recommend that you install a sediment
trap in supply line as shown in Figure 18.
Locate sediment trap where it is within reach
for cleaning. Install in piping system between
fuel supply and replace. Locate sediment
trap where trapped matter is not likely to
freeze. A sediment trap traps moisture and
contaminants. This keeps them from going
into replace gas controls. If sediment trap
is not installed or is installed wrong, replace
may not run properly.
INSTALLATION
Continued
Figure 17 - External Regulator on
Propane/LP Supply Tank with Vent
Pointing Down
External
Regulator Propane/LP
Supply Tank
Vent Pointing Down
CONNECTING FIREPLACE TO GAS
SUPPLY
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not
provided)
1. Remove replace screen. Remove two
screws that hold replace screen in place
for shipping. These screws are located
near top of screen. Discard screws. Push
the bottom corners of the screen in and
release. The screen will pop out at the
bottom. Grasp the bottom of the screen,
lift the screen up and pull out to remove.
2. Remove screws that attach log base as-
sembly to replace (see Figure 19, page
15). Carefully lift up log base assembly
and remove from replace (see Figure
19, page 15).
Note: If adding brick liner accessory kit,
install it now. Follow brick liner accessory kit
instructions.
3. Route gas line (provided by installer)
from equipment shutoff valve to replace.
Route exible gas supply line through one
of the access holes.
* Purchase the optional equipment shutoff
valve from your dealer.
** Minimum inlet pressure for purpose of input
adjustment.
Figure 18 - Gas Connection
3" Minimum
Equipment Shutoff Valve
With 1/8" NPT Tap*
Natural Gas
From Gas
Meter
(5" W.C.** to
10.5" W.C.
Pressure)
Propane/LP
From External
Regulator
(11" W.C.**
to 14" W.C.
Pressure)
Sediment Trap
Cap Pipe Tee
Nipple Joint
fire-parts.com

www.lennoxhearthproducts.com
126543-01A 15
INSTALLATION
Continued
Figure 19 - Removing Log Base
Assembly From Fireplace
Figure 20 - Attaching Flexible Gas Lines
Together
Flexible Gas Line
from Fireplace Gas
Regulator
To Fireplace Gas
Regulator Equipment Shutoff
Valve Provided by
Installer
Propane/LP
To External
Regulator
Natural Gas
To Gas Meter
4. Attach the exible gas line to gas supply
(see Figure 20). Check tightness of ex-
ible gas line attached to gas regulator of
replace (see Figure 20).
5. Check all gas connections for leaks. See
Checking Gas Connections.
6. Replace log base assembly back into
replace. Feed exible gas line into re-
place base area while replacing log base
assembly. Make sure the entire exible
gas line is in replace base area. Reat-
tach log base assembly to replace with
screws removed in step 2, page 14.
CAUTION: Do not pick up
log base assembly by burner.
This could damage burner. Only
handle base by grates.
NOTICE: Most building codes
do not permit concealed gas
connections. A exible gas line
is provided to allow accessibility
from the replace (see Figure 20).
The exible gas supply line con-
nection to the equipment shutoff
valve should be accessible.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open ame to check for a leak.
Apply a noncorrosive leak detec-
tion uid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply and
replace. See guidelines under
Connecting Fireplace to Gas
Supply, page 14.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect replace with its main gas
valve (control valve) and equipment shut-
off valve from gas supply piping system.
Pressures in excess of 1/2 psig will dam-
age replace regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas, or using compressed air.
fire-parts.com

www.lennoxhearthproducts.com 126543-01A16
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection uid to
all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace and equipment
shutoff valve to gas supply. Check recon-
nected ttings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see
Figure 21).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas, or using compressed air.
3. Check all joints from gas meter to equip-
ment shutoff valve for natural gas or pro-
pane/LP supply to equipment shutoff valve
for propane/LP (see Figures 22 and 23).
Apply noncorrosive leak detection uid to
all joints. Bubbles forming show a leak.
4. Correct all leaks at once.
INSTALLATION
Continued
Figure 21 - Equipment Shutoff Valve
Figure 23 - Checking Gas Joints for
Propane/LP Gas
Propane/LP
Supply Tank
Figure 22 - Checking Gas Joints for
Natural Gas
Gas Control Valve
Equipment Shutoff Valve
Equipment
Shutoff
Valve
Gas Meter
Gas Control Valve
Open
Closed
Equipment
Shutoff
Valve
PRESSURE TESTING FIREPLACE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Fig-
ure 21).
2. Open main gas valve located on or near
gas meter for natural gas or open pro-
pane/LP supply tank valve.
3. Make sure control knob of replace is in
the OFF position.
4. Check all joints from equipment shutoff
valve to gas control valve (see Figures 22
or 23). Apply noncorrosive leak detection
uid to all joints. Bubbles forming show a
leak.
5. Correct all leaks at once.
6. Light replace (see Operation, page 21).
Check all other internal joints for leaks.
7. Turn off replace (see To Turn Off Gas to
Appliance, page 22).
INSTALLING LOGS
WARNING: Failure to position
the parts in accordance with these
diagrams or failure to use only
parts specically approved with
this heater may result in property
damage or personal injury.
CAUTION: Do not remove
the data plates attached to the
heater base assembly. The data
plates contain important safety
and warranty information.
fire-parts.com

www.lennoxhearthproducts.com
126543-01A 17
INSTALLATION
Continued
1. Place ber ramp log in center of chassis
as shown in Figure 24. The ber ramp log
can be identied by the shape and much
lighter weight when compared to the other
logs. The log must sit at on the black
sheet metal and behind the left metal tab
as shown in gure 24a. Make sure the side
marked ''BOTTOM'' is setting down.
Figure 24 - Installing Fiber Ramp Log
Ramp Log
Metal
Tab
2. Place front left and front right logs as shown
in Figure 25.
Figure 26 - Installing Left Ember Bed Log
Left Ember
Bed Log
Figure 25 - Installing Left/Right Front Logs
Left Front
Log
Right Front Log
3. Place left ember bed log as shown in
Figure 26. The log has groove on one side
that sets on the ember bed pan. The back
side of this log needs to rest against the
front of the base assembly. Make sure the
ame from the ember pan does not touch
the ember bed log.
5. The left middle log has a groove on the
bottom to sit on the chassis and has to sit
on the tab on the back of the left front log
as shown in Figure 28.
Figure 28 - Installing Left Middle Log
Figure 27 - Installing Right Ember Bed Log
SVFS36 Right
Ember Bed Log
Left Middle
Log
Hole
Underneath
Grate Prong
4. The SVFS32 and SVFS36 use two dif-
ferent right ember bed logs. The SVFS32
right ember bed log is installed in the same
manner as the log in step 3 above but on
the right side. The SVFS36 right ember
bed log has a hole in the bottom that sets
on the grate nger and the other end rest
on the replace oor, place log as shown
in Figure 27. The back side of this log
needs to rest against the front of the base
assembly, make sure the ame from the
ember pan does not touch the ember bed
log.
Figure 24a - Installing Ramp Log
Ramp
Log
Metal Tab
fire-parts.com

www.lennoxhearthproducts.com 126543-01A18
6. The right middle log has a groove on the
bottom to sit on the chassis and has to sit
on the tab on the back of the right front. The
right middle log should have a recess area
that ts around the ramp log as shown in
Figure 29.
INSTALLATION
Continued
7. The rear middle log should t between the
ramp log and the rear burner. The left and
right middle logs have recessed areas for
the rear middle log to sit into (See Figure
30). Be careful not to push the rear burner
out of position while installing this log.
8. Rest rear log in back corner sections of
chassis assembly as shown in Figure 31.
9. Place the left top log onto the rear log and
the left middle log. Make sure to place the
projection on the bottom of the left top log
into the recessed areas on the rear and left
middle logs (see Figure 32).
Rear
Middle Log
Figure 30 - Installing Rear Middle Log
Figure 31 - Installing Rear Log
Rear Log
Figure 32 - Installing Left Top Log
Figure 33 - Installing Middle Crossover Log
Rear Log
Left Top Log
Left
Middle
Log
Middle
Crossover
Log
10. Rest the middle crossover log onto the right
middle log and the left front log (see Figure
33). Make sure to match the projection on
the bottom of the crossover log with the
recess area in the right middle log and the
left front log.
11. Place the top rear log onto the rear log as
Figure 29 - Installing Right Middle Log
Right Middle
Log
fire-parts.com

www.lennoxhearthproducts.com
126543-01A 19
INSTALLATION
Continued
Figure 34 - Installing Top Rear Log
Top Rear
Log
Rear Log
shown. The rear log has a projection that
will t into the recess area on the bottom
of the top rear log (see Figure 34).
EMBER PLACEMENT
WARNING: Do not use
any other ember material not
supplied with this unit.
WARNING: Do not operate
unit without ember material cor-
rectly in place as shown in Fig-
ures 36 & 37, page 20. Do NOT
place ember material anywhere
else on the unit. Use only em-
ber material supplied with unit.
Excessive or incorrectly placed
ember material may produce
carbon monoxide or soot.
1. Ember Chunk Placement. The SVFS36
series burner systems include three em-
ber chunks that are designed to t over
shoulder screws on the ember pan burner.
The bottom of each ember chunk has a
hole for securing the ember chunk in place
when it is placed over a shoulder screw.
Place the ember chunks as shown in Fig-
ure 35 on page 20 by placing the ember
chunk with the number "1" on the left, "2"
in the center, and "3" on the right. These
numbers are embossed on the back of
each piece for identication purposes.
Please note that SVFS32 series burner
systems do not include ember chunks.
2. Two ember materials are supplied with
this log set. Platinum Bright Embers give
a bright glow appearing as hot coals.
Should embers need replacing, see
Parts, page 30.
Platinum Bright Ember placement. Add
embers to front, at burner. Gently remove
embers from bag. Separate pieces of
ember material and place on surface of
at burner just behind horizontal ports as
shown in Figure 36.
Rock Wool placement. Place rock wool
material on front at burner in areas away
from ports as shown in Figure 37.
3. DO NOT place rock or additional logs
on front burner or on logs. Placing any
material on unit other than ember material
on front burner may result in production
of carbon monoxide or soot.
fire-parts.com

www.lennoxhearthproducts.com 126543-01A20
INSTALLATION
Continued
Figure 37 - Placement of Rock Wool (shown with Platinum Bright Embers)
Figure 36 - Platinum Bright Embers
Flat Front Burner
Ember Material
Rock Wool
Figure 35 - Ember Chunk Placement SVFS36 Series
Ember Chunk #1 Ember Chunk #2 Ember Chunk #3 Flat Front Burner
Figure 38 - Installing Fireplace Screen
Magnets
Screen
Bracket
4. Install replace screen by placing the screen
brackets on top of the fireplace screen
brackets as shown in Figure 38. Push the
bottom of the screen inward against the
magnetic catches to secure in place.
WARNING: You must operate
this replace with the replace
screen in place. Make sure re-
place screen is in place before
running replace.
fire-parts.com