Shown with optional cabinet mantel, hearth base and trim accessories.
VTGF33NRB AND VTGF33PRB
GAS FIREPLACE WITH TOTAL CONTROL SYSTEM (TCS)
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.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any 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 fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency, or the gas supplier.
Save this manual for future reference.
For more information, visit www.desatech.com
WARNING: Improper installation, adjustment, 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.
WARNING: This is an unvented gas-fired heater. 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 Ventilation
section on page 5 of this manual.
This appliance may be installed in an aftermarket,* permanently located, manufactured (mobile) home, where
not prohibited by local codes.
This appliance is only for use with the type of gas indi
cated 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
State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the
Commonwealth of Massachusetts.
Sellers of unvented propane or natural gas-fired 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 Common
wealth of Massachusetts.
TABLE OF CONTENTS
Safety Information ............................................... 3
WARNING: This product contains and/or generates chemicals
known to the State of California
to cause cancer or birth defects,
or other reproductive harm.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate, 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.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble the flu, with head
aches, 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 affected by carbon monoxide than others.
These include pregnant women, people with heart
or lung disease or anemia, those under the influence
of alcohol, and those at high altitudes.
Natural and Propane/LP Gas: Natural and pro-
pane/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 warn
ings. Keep this manual for reference. It is your
guide to safe and proper operation of this heater.
WARNING: Do not allow fans
to blow directly into the fireplace.
Avoid any drafts that alter burner
flame patterns. Ceiling fans can
create drafts that alter burner
flame patterns. Altered burner
patterns can cause sooting.
Due to high temperatures, the
appliance should be located out
of traffic and away from furniture
and draperies.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.
Fireplace front and screen become very hot when running fire
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 children when they are in the room
with fireplace. When using the
optional hand-held remote accessory, keep selector switch
in the OFF position to prevent
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children from turning on burners
with remote.
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WARNING: Any change to
this heater or its controls can
be dangerous.
You must operate this fireplace
with the fireplace screen and
hood in place. Make sure fireplace screen and hood are in
WARNING: Do not use a blower insert, heat exchanger insert,
or other accessory not approved
for use with this heater.
place before running heater.
Keep the appliance area clear
and free from combustible materials, gasoline, and other flammable vapors and liquids.
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SAFETY INFORMATION
Continued
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) in
side any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).
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
neighborʼs phone. Follow the gas supplierʼs
instructions
• if you cannot reach your gas supplier, call
the fire department
4. This fireplace shall not be installed in a bed
room or bathroom.
5. Do not use this fireplace as a wood-burning
fireplace. Use only the logs provided with
the fireplace.
6. Do not add extra logs or ornaments such as
pine cones, vermiculite, or rock wool. Using
these added items can cause sooting. Do not
add lava rock around base. Rock and debris
could fall into the control area of fireplace.
7. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 25.
8. Before using furniture polish, wax, carpet
cleaner, or similar products, turn heater off.
If heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
9. This fireplace needs fresh air ventilation to run
properly. This fireplace has an Oxygen Deple
tion Sensing (ODS) safety shutoff system. The
ODS shuts down the fireplace if not enough
fresh air is available. See Air for Combustion and Ventilation, page 5. If fireplace keeps
shutting off, see Troubleshooting, pags 27.
10. Do not run fireplace
• where flammable liquids or vapors are used
or stored
• under dusty conditions
11. Do not use this fireplace to cook food or burn
paper or other objects.
12. Do not use fireplace if any part has been
exposed to or under water. Immediately call
a qualified service technician to inspect the
fireplace and to replace any part of the control
system and any gas control which has been
under water.
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13. Do not operate fireplace if any log is broken.
Do not operate fireplace if a log is chipped
(dime-sized or larger).
14. Turn fireplace off and let cool before servicing.
Only a qualified service person should service
and repair fireplace.
15. Operating fireplace above elevations of 4,500
feet could cause pilot outage.
16. To prevent performance problems with pro
pane/LP units, do not use propane/LP fuel
tanks of less than 100 lb. capacity.
17. Prov ide adeq ua te clearan ce s around air
openings.
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PRODUCT
IDENTIFICATION
Log Set
Piezo
Ignitor
Fan
Switch
Figure 1 - Log Set and Base
Top Louver
Assembly
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Screen
Assembly
Bottom Louver Assembly
Base
Assembly
Top Outer Casing
Blower
Assembly
Figure 2 - Fireplace
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113134-01B
LOCAL CODES
Install and use fireplace 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
UNPACKING
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 is 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
fireplace screen. Remove and discard these
screws. Lift fireplace screen up and pull out
to remove.
3. Remove protective packaging applied to logs,
log base assembly, and fireplace.
4. Remove fireplace hood from carton insert.
5. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought fireplace.
PRODUCT FEATURES
OPERATION
This vent-free fireplace is clean burning. It requires
no outside venting. There is no heat loss out a vent
or up a chimney. Heat is generated by both realistic
flames and glowing embers. When used without the
optional blower, the fireplace requires no electricity
making it ideal for emergency backup heat.
SAFETY DEVICE
This fireplace 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 fireplace
if there is not enough fresh air.
PIEZO IGNITION SYSTEM
This fireplace has a piezo ignitor. This system
requires no matches, batteries, or other sources
to light fireplace.
WIRELESS REMOTE CONTROL
This fireplace features an infrared wireless remote
control. This control system can be used to auto
matically light the pilot and adjust the burner flame
height at the push of a button.
WIRED WALL-MOUNTED REMOTE
CONTROL
This fireplace features a two-button wall switch
assembly with glowing LEDʼs. The wall switch
performs the same functions as the wireless handheld remote control with the added feature of LEDʼs
for visual feedback of operation and status.
BLOWER ASSEMBLY
This fireplace includes a blower assembly. The
blower operates thermostatically. The blower circu
lates heated air from the fireplace into the room.
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall
not be installed in a confined
space or unusually tight construc
tion unless provisions are provided for adequate combustion and
ventilation air. Read the following
instructions to insure proper fresh
air for this and other fuel-burning
appliances in your home.
Todayʼs homes are built more energy efficient
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. During heating months, home
owners want their homes as airtight as possible.
While it is good to make your home energy effi
cient, your home needs to breathe. Fresh air must
enter your home. All fuel-burning appliances need
fresh air for proper combustion and ventilation.
Exhaust fans, fireplaces, 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.
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AIR FOR COMBUSTION
AND VENTILATION
Continued
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section 5.3,
Air for Combustion and Ventilation.
All spaces in homes fall into one of the three fol
lowing ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 5 through 7 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 unusually
tight construction, you must provide additional
fresh air.
Unusually tight construction is defined 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
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 floors, 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 7.
If your home does not meet all of the three
criteria above, proceed to Determining Fresh-Air Flow for Fireplace Location.
6
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kg per pa-sec-m2) or
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Confined Space and Unconfined Space
The National Fuel Gas Code, ANSI Z223.1/NFPA
54 defines a confined space as a space whose
volume is less than 50 cubic feet per 1,000 Btu
per hour (4.8 m
3
per kw) of the aggregate input
rating of all appliances installed in that space and
an unconfined space as a space whose volume is
not less than 50 cubic feet per 1,000 Btu per hour
3
(4.8 m
per kw) of the aggregate input rating of
all appliances installed in that space. Rooms com
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municating directly with the space in which the
appliances are installed*, through openings not
furnished with doors, are considered a part of the
unconfined space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation grills
between them.
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Determining if You Have a Confined or
Unconfined Space
Use this work sheet to determine if you have a
confined or unconfined space.
Space: Includes the room in which you will install
fireplace plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.
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1. Determine the volume of the space (length x
width x height).
Length x Width x Height =__________cu. ft.
(volume of space)
Example: Space size 20 ft. (length) x 18 ft.
(width) x 8 ft. (ceiling height) = 2880 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: 2880 cu. ft. (volume of space) x 20 =
57,600 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
,
Vent-free fireplace
Gas water heater*
Gas furnace
Vented gas heater
Gas fireplace logs
Other gas appliances* + ________
Total = ________
* Do not include direct-vent gas appliances. Di
rect-vent draws combustion air from the outdoors
and vents to the outdoors.
__________ Btu/Hr
__________ Btu/Hr
__________ Btu/Hr
__________ Btu/Hr
__________ Btu/Hr
113134-01B
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Btu/Hr
Btu/Hr
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AIR FOR COMBUSTION
Outlet
Air
Ve
ntilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air
Ventilated
Crawl Space
To
Crawl
Space
To Attic
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ve
ntilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
AND VENTILATION
Continued
Example:
Gas water heater _____________
Vent-free fireplace + ____________
Total = ____________
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: 57,600 Btu/Hr (maximum the space
can support)
73,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the example is a confined space because
the actual Btu/Hr used is more than the maximum
Btu/Hr the space can support. You must provide ad
ditional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoin
ing room. If the extra space provides an unconfined
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 Ventila
tion Air From Outdoors.
C. Install a lower Btu/Hr fireplace, if lower Btu/Hr
size makes room unconfined.
If the actual Btu/Hr used is less than the maximum
Btu/Hr the space can support,
confined space. You will need no additional fresh
air ventilation.
WARNING: If the area in
which the heater may be oper
ated is smaller than that defined
as an unconfined space or if the
building is of unusually tight
construction, provide adequate
combustion and ventilation air
by one of the methods described
in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 Section 5.3
or applicable local codes.
40,000
33,000
73,000
Btu/Hr
Btu/Hr
Btu/Hr
the space is an un-
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VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining un
confined space. When ventilating to an adjoining
unconfined space, you must provide two permanent openings: one within 12" of the ceiling and
one within 12" of the floor 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, Section 5.3, Air for
Combustion and Ventilation for required size of
ventilation grills or ducts.
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-
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Figure 3 - Ventilation Air from Inside
Building
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or
ducts. You must provide two permanent openings:
one within 12" of the ceiling and one within 12"
of the floor. 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,
Section 5.3, 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 thermostatcontrolled power vent. Heated air entering the attic
will activate the power vent.
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Figure 4 - Ventilation Air from Outdoors
INSTALLATION
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 qualified service person must install fire
place. Follow all local codes.
WARNING: Never install the
fireplace
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 42 inches
from the front, top, or sides of
the fireplace
• in high traffic areas
• in windy or drafty areas
CAUTION: This fireplace
creates warm air currents. These
currents move heat to wall sur
faces next to fireplace. Installing
fireplace next to vinyl or cloth
wall coverings or operating
fireplace where impurities (such
as, but not limited to, tobacco
smoke, aromatic candles, cleaning fluids, oil or kerosene lamps,
etc.) in the air exist, may discolor
walls or cause odors.
Note: Your fireplace 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 fireplace, except
where standoff spacers are integrally attached. If
standoff spacers are attached to your fireplace,
these spacers can be placed directly against wall
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or framing materials.
Use the dimensions shown for rough openings to
create the easiest installation (see Built-In Fireplace Installation, page 17).
IMPORTANT:
the air. Although this is beneficial, installing fire
place in rooms without enough ventilation air may
cause mildew to form from too much moisture. See
Air for Combustion and Ventilation,
IMPORTANT: Make sure the fireplace is level. If
fireplace is not level, log set will not work properly.
CHECK GAS TYPE
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Use the correct gas type (natural or propane/LP)
for your unit. If your gas supply is not correct, do
not install fireplace. Call dealer where you bought
fireplace for proper type fireplace.
Vent-free heaters add moisture to
WARNING: This appliance
is equipped for (natural or propane/LP) gas. Field conversion
is not permitted.
ELECTRICAL HOOKUP
Thi s fir ep lace normally operates under 120
VAC/60 Hz line voltage. The electrical cord sup
plied with your fireplace is five feet in length. You
must locate fireplace within reach of a 120 volt
grounded electrical outlet. If not, you must install
an electrical outlet within reach of the fireplace
power cord. The GA3555 outlet accessory may
be used for built-in applications.
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INSTALLATION CLEARANCES
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
floor, ceiling, and adjoining wall.
MINIMUM CLEARANCE TO
COMBUSTIBLE MATERIALS
Top Left and BottomRight Sides and Rear
0" 16" 0"
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page 5.
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113134-01B
INSTALLATION
Continued
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 fireplace
cabinet to any combustible material and wall
should follow diagram in Figure 5.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3
tible material must be 4" from the side of the
fireplace cabinet (see Figure 5).
B. Clearances from the top of the firepl ace
opening to the ceiling should not be less
than 42 inches.
*Minimum 16 inches from Side Wall
Figure 5 - Minimum Clearance for
1
/2" from the wall. This combus-
Example
Combustible to Wall
*
REMOVING FIREPLACE SCREEN
AND FLOOR ASSEMBLY
NOTICE: Shutoff gas supply
and disconnect heater from gas
supply if installing blower into
previously installed fireplace.
Contact a qualified service per
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son to do this.
1. To remove firepla ce scre en, remove two
screws that hold fireplace screen in place for
shipping. These screws are located near top of
screen. Discard screws. Lift fireplace screen
up and pull out to remove.
2. If logs are installed, carefully remove the logs
and set aside, noting the properly mounted
location of each.
3. Remove screws that attach fireplace floor as
sembly to fireplace. Open lower louver door.
Carefully lift up fireplace floor assembly and
remove from fireplace, taking care to pull
flexible gas line through the access holes (see
Figure 6). Note: Be careful of all wires on
underside of log base.
CAUTION: Do not pick up
fireplace floor assembly by burners. This could damage burners.
Only handle base by grates.
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INSTALLATION SEQUENCE
After unpacking fireplace (see Unpacking, page 5),
we suggest that you install your fireplace system
in the following sequence:
1. Removal of fireplace floor assembly (re
quired)
2. Electrical connections for power cord (required)
3. Relocating wall switch (optional)
4. Installing blower accessory (optional)
5. Connecting fireplace to gas supply (required)
6. Checking gas connections (required)
7. Firebox installation, conventional or built-in
(required)
8. Installing perimeter trim (optional)
9. Installing fireplace hood (required)
10. Installing logs (required)
11. Installing fireplace screen (required)
Use the following instructions to complete each
step.
113134-01B9
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Screw
-
Fireplace
Floor
Assembly
Figure 6 - Removing Fireplace Floor
Screw
Flexible
Gas Line
Assembly
INSTALLATION
Continued
ELECTRICAL CONNECTIONS FOR
POWER CORD
This fire place operate s on 120 VAC, 60 Hz
power. An electrical power cord is supplied with
this unit.
For Mantel Installation
1. Determine from which side of the fireplace the
power cord will exit. Locate the 1.5" diameter
hole near the center of floor support bracket on
appropriate side of lower cavity (see Figure 7).
2. Locate power cord. Remove wire tie or tape
holding plug end of power cord.
3. Power cord has 2 plastic hole bushings
threaded onto it. Route cordʼs 3-prong plug
through the 1.5" diameter hole in appropriate
floor support bracket.
4. Push first plastic bushing completely through
hole. Squeeze bushing as needed to do this.
5. Install the second plastic bushing into the
hole in the floor support bracket by snapping
into place.
6. Route the 3-prong plug through the 1.5" hole
in fireplace outer casing.
7. Install the first plastic bushing into this hole
by snapping into place.
8. After you have connected to gas supply and
checked your gas connections (see pages 14 and
15), plug power cord into any convenient 3prong grounded wall receptacle near fireplace.
Hole in Floor
Support Bracket
Bushings
Figure 7 - Routing Power Cord
Hole in Outer
Casing
Power Cord
RELOCATING WALL SWITCH
ASSEMBLY
Note: The decorative wall switch plate supplied
is white. The wall switch plate may be painted to
match your decor.
The push-button switch and decorative wall
plate assembly supplied with your fireplace is
pre-mounted at the factory in the lower cavity of
the fireplace. You may relocate this wall switch
assembly to a more convenient location such as the
side of your mantel or directly onto the wall near
the fireplace. To mount the wall switch assembly,
you must first cut openings in the mantel or wall
where the switch will be located.
Note: If you choose to relocate the wall switch as
sembly, do so before final installation into a mantel
or recessing into a wall. If you are installing an
optional blower accessory, install it at the same
time you relocate the wall switch assembly.
CAUTION: The wall switch
assembly must never be mounted directly above the fireplace
where heat may damage it. If you
relocate wall switch assembly
from lower fireplace cavity, it
must be mounted either on side
wall of mantel or on wall to side
of fireplace.
For Recessed Installation
If fireplace is to be recessed into a wall (see
Built-In Fireplace Installation, page 17), we
recommend mounting wall switch assembly to
left side of fireplace. The wall switch assembly
should be mounted approximately 12" from left
edge of fireplace, and less than 60" from the floor.
IMPORTANT: Do not locate wall switch assembly
directly in front of wall stud - there must be room
behind wall board for wires from switch. If you
choose to locate wall switch assembly to right side
of fireplace, the length of the cord restricts you to
less than 6" from right edge of fireplace and less
than 48" from floor.
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For Recessed Installation
If an outlet is not installed in fireplace, install
model GA3555 - Outlet Kit with Cover. This
kit will supply a convenient 3-prong grounded
electrical outlet for power. Refer to installation
manual provided with this optional accessory for
instructions on wiring. Note: A qualified installer
must make all electrical connections.
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113134-01B
4 3/4"
3 3/4"
3/8"
3/16"
3/4"
3/8"
Diameter
2 Holes
INSTALLATION
Continued
For Mantel Installation
If fireplace is to be installed into a mantel, (see
Conventional Fireplace Installation, page 16) the
wall switch assembly may be mounted on either
side of the mantel, facing to the side. Do not locate
wall switch assembly anywhere on the front face
of the mantel.
CAUTION: Be careful of gas
lines and wiring when moving
floor.
1. Determine the new location for the wall switch
assembly. The wires attached to switch are six
feet long.
2. Remove 2 screws securing plastic wall switch
assembly to bracket in fireplace lower cavity.
Save screws.
3. Remove wire tie holding coiled wire attached
to wall switch assembly (see Figure 8).
4. Remove wall switch assembly from bracket.
5. Carefully pass wall switch assembly and cord
through large elongated hole in rear of either
left or right floor support bracket, depending on
desired location of switch. Pass wall switch as
sembly and cord through 1.5" diameter hole in
side of fireplace outer casing (see Figure 9).
Burner
Outlet Tube
Firebox Bottom
Wire
Tie
6. Pull wall switch assembly and cord from
fireplace making sure wall switch assembly
will reach desired mounting location without
straining cord assembly.
If you are mounting wall switch assembly to a
wall, continue reading. If you are mounting your
wall switch assembly to the side of the mantel,
see page 12.
CAUTION: Do not apply ex-
cessive pull on cord.
Mounting Wall Switch Assembly to Wall
for Recessed Fireplace
7. Create three openings on wall according to
Template 1, page 39. This is best done by
making a pattern to work with on your wall.
Carefully cut page 39 from manual and tape
paper template vertically onto wall at preferred location. Pierce the paper at the centers
of the 2 holes with a nail or sharp pencil,
leaving a mark on the wall. Do the same at
centers of the four circles near the corners of
the rectangle.
8. Remove paper template from wall.
9. Drill 3/8" holes at each mark.
10. Using a straight edge and pencil, connect the
outer edges of the 4 holes for the rectangle (see
Figure 10). This will give you cutting lines for
the rectangle you will cut in the wall.
Template from Page 39
of This Manual
Tape
Cutting
Lines
Gas Control
Valve
Figure 8 - Relocating Wall Switch
Hole in
Outer
Casing
Wall Switch
Assembly
Assembly
Make
Marks at
Centers
of Holes
Hole in Floor
Support
Bracket
Wall Switch
Assembly
Figure 9 - Routing Wall Switch Assembly
Through Fireplace for Relocation
113134-01B11
www.desatech.com
Figure 10 - Using Template (Page 39) for
Wall Switch Assembly Installation
INSTALLATION
Continued
11. Using a keyhole saw, hack saw blade, drill,
file, or other suitable tool, carefully cut out the
rectangular opening. Note: The corners of the
rectangle may be round. IMPORTANT: Do not
exceed the size of the rectangle on template.
12. From inside the recessed opening for the
fireplace, carefully pass wall switch assembly
through the rectangular opening to the outside
of the wall.
13. Using wall anchors supplied in hardware pack
age, fold wall anchor as shown in Figure 11.
14. Insert wall anchor, wings first, into hole. Tap
anchor flush to wall.
15. For thin walls (1/2" or less), insert red key into
wall anchor. Push red key to “pop” open anchor
wings. See Figure 12. IMPORTANT: Do not
hammer key! For thick walls (over 1/2" thick),
do not pop open wings.
16. Position wall switch assembly vertically over
wall openings with decal lettering upright (see
Figure 13).
Figure 11 - Folding Anchor
Figure 12 - Popping Open Anchor Wings
for Thin Walls
Opening
in Wall or
Mantel Wall
Wall Switch
Assembly
Screws
17. Insert mounting screws, removed in step 2 of
Relocating Wall Switch Assembly on pages 10
and 11, through holes in wall plate and into
wall anchors.
18. Tighten screws until wall plate is firmly at
tached to wall. Do not overtighten.
Mounting Wall Switch Assembly to Side
of Mantel
7. Create three openings in the mantel wall ac
cording to Template 2, page 39. This is best
done by making a pattern to work with on the
mantel. Carefully cut page 39 from manual
-
and tape paper template vertically onto mantel
wall at preferred location. Pierce the paper at
the centers of the 2 holes with a nail or sharp
pencil, leaving a mark on the wall. Do the
same at centers of the four circles near the
corners of the rectangle.
8. Remove paper template from mantel wall.
9. Drill 1/8" pilot holes at each mark for top and
bottom screw holes. Drill 3/8" holes at each
mark for centers of four circles near corners
of rectangle.
10. Using a straight edge and pencil, connect the
outer edges of the 4 holes for the rectangle
(see Figure 10, page 11). This will give you
cutting lines for the rectangle you will cut in
the mantel wall.
11. Using a keyhole saw, hack saw blade, drill,
file, or other suitable tool, carefully cut out the
rectangular opening. Note: The corners of the
rectangle may be round. IMPORTANT: Do not
exceed the size of the rectangle on template.
12. Carefully pass wall switch assembly through
rectangular opening from inside mantel (see
Figure 13).
13. Position wall switch assembly vertically over
opening with decal lettering upright. Make
sure wires freely pass through wall without
binding. Align holes in wall plate with 1/8”
pilot holes in mantel wall.
14. Drive mounting screws, removed in step 2 of
Relocating Wall Switch Assembly on pages 10
and 11, through wall plate holes and into pilot
holes in mantel wall.
15. Tighten screws until wall switch assembly
is firmly attached to mantel. Do not over
tighten.
-
-
-
Figure 13 - Securing Wall Switch
Assembly
12
www.desatech.com
113134-01B
INSTALLATION
Continued
INSTALLING GAS PIPING TO
FIREPLACE LOCATION
WA RN IN G : A qu a l if i ed
service person must connect
fireplace to gas supply. Follow
all local codes.
WARNING: For propane/LP
units, never connect fireplace
directly to propane/LP supply.
This fireplace requires an external regulator (not supplied).
Install the external regulator
between the heater and propane/LP supply.
WARNING: For natural gas
units, never connect fireplace
to private (non-utility) gas wells.
This gas is commonly known as
wellhead gas.
Installation Items Needed
Before installing fireplace, make sure you have
the items listed below.
• external regulator (supplied by installer, for
propane/LP units only)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved flexible gas line with gas connector
(if allowed by local codes) (not provided)
* A CSA design-certified equipment shutoff valve
with 1/8” NPT tap is an acceptable alternative to
test gauge connection. Purchase the optional CSA
design-certified equipment shutoff valve from your
dealer. See
Accessories, page 36.
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 inches
of water. If you do not reduce incoming gas pres
sure, heater regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 14. Pointing the vent down
protects it from freezing rain or sleet.
CAUTION: Use only new,
black iron or steel pipe. Internally-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 fireplace.
If pipe is too small, undue loss
of volume will occur.
Installation must include an equipment shutoff valve,
union, and plugged 1/8" NPT tap. Locate NPT tap
within reach for test gauge hook up. NPT tap must
be upstream from fireplace (see Figure 14).
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 re
quirements for locating equipment shutoff valve
to fireplaces.
External
Regulator
Vent Pointing Down
Figure 14 - External Regulator with Vent
Pointing Down (Propane/LP Gas)
Propane/LP
Supply Tank
-
-
113134-01B13
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INSTALLATION
Continued
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from go
ing into pipe. Excess sealant in pipe could result
in clogged fireplace valves. Never use sealant on
flare 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 15. Locate sediment
trap where it is within reach for cleaning. Install in
piping system between fuel supply and fireplace.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into fireplace gas controls. If sediment trap is not installed or
is installed wrong, fireplace may not run properly.
CSA Design-Certified
Equipment Shutoff
Valve With 1/8" NPT
Tap*
Natural
From Gas
Meter
(5" W.C. to
10.5" W.C.
3" Minimum
Pipe Cap Tee
Nipple Joint
Sediment Trap
Figure 15 - Gas Connection
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories, page 36.
Pressure)
Propane/LP
From
External
Regulator
(11" W.C.
to 14" W.C.
Pressure
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. If fireplace screen and floor are still installed,
see Removing Fireplace Screen and Floor Assembly, page 9.
2. Route gas line (provided by installer) from
equipment shutoff valve to fireplace. Route
flexible gas supply line through one of the
access holes.
NOTICE: Most building codes
do not permit concealed gas
connections. A flexible gas line
is provided to allow accessibility
from the fireplace (see Figure 16).
The flexible gas supply line connection to the equipment shutoff
valve should be accessible.
3. Attach the flexible gas line to gas supply (see
Figure 16). Check tightness of flexible gas
line attached to gas regulator of fireplace (see
Figure 16).
4. Check all gas connections for leaks. See
Checking Gas Connections, page 15.
5. Replace fireplace floor assembly. Feed flexible
gas line into fireplace base area while replacing
fireplace floor assembly. Make sure the entire
flexible gas line is in fireplace base area.
Note: Be careful of wires and components on
underside of fireplace floor. Reattach fireplace
floor assembly with screws removed in step
3 of Removing Fireplace Screen and Floor Assembly, page 9.
To Fireplace Gas
Regulator
Equipment
Shutoff Valve
Provided by
Installer
Figure 16 - Attaching Gas Lines Together
Flexible Gas Line from
Fireplace Gas Regulator
From Gas Meter (Natural)
From External Regulator
(Propane/LP)
14
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113134-01B
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