Desa Tech CSGF28NTC Owner's Manual
DESA INTERNATIONAL
UNVENTED (VENT-FREE)
NATURAL GAS FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
Variable Manually-
Controlled "A"
Models and
Thermostatically-
Controlled
“C” Models
with
Split Oak Logs
Shown with optional
cabinet mantel,
hearth base, and trim
®
accessories.
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 qualified installer, service agency, or
the gas supplier.
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
bustion and Ventilation
tion on page 4 of this manual.
Air for Com-
sec-
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited
by state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
Save this manual for future reference.
DESA INTERNATIONAL
UNVENTED NATURAL GAS FIREPLACE
SAFETY
INFORMATION
WARNINGS
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate, or service this fireplace. Improper use of this fireplace 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 headaches, dizziness,
or nausea. If you have these signs, the fireplace may not be working properly. Get
fresh air at once! Have fireplace 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 Gas: Natural gas is 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 fireplace.
WARNING: Any change to this
fireplace or its controls can be
dangerous.
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. 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. F ollow the
gas supplier’s instructions
• if you cannot reach your gas supplier,
call the fire department
3. This fireplace shall not be installed in
a bedroom or bathroom.
4. Never install the fireplace
• 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
5. Do not use this fireplace as a woodburning 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. Y ou must operate this fireplace with the
fireplace screen and hood in place.
Make sure fireplace screen and hood
are in place before running fireplace.
8. This fireplace is designed to be smokeless. If logs ever appear to smoke, turn
off fireplace and call a qualified service person.
eration, slight smoking could occur due
to log curing and fireplace burning
manufacturing residues.
9. To prevent the creation of soot, follow
the instructions in Cleaning and Main-
tenance, page 21.
10. 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.
Note:
During initial op-
11. 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.
12. Do not use a blower insert, heat exchanger insert or other accessory not
approved for use with this heater.
13. This fireplace needs fresh air ventilation to run properly . This fireplace has
an oxygen depletion sensor (ODS) pilot light safety system. The ODS shuts
down the fireplace if not enough fresh
air is available. See Air for Combus-
tion and Ventilation, pages 4 through
6. If fireplace keeps shutting off, see
Troubleshooting, pages 22 through 24.
14. Do not run fireplace
• where flammable liquids or vapors
are used or stored
• under dusty conditions
15. Do not use this fireplace to cook food
or burn paper or other objects.
16. Never place any objects in the fireplace
or on logs.
17. Fireplace front and screen becomes
very hot when running fireplace. Keep
children and adults away from hot surfaces to avoid burns or clothing ignition. Fireplace will remain hot for a
time after shutdown. Allow surf aces to
cool before touching.
18. Carefully supervise young children
when they are in the room with
fireplace.
19. 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.
20. Do not operate fireplace if any log is
broken. Do not operate fireplace if a
log is chipped (dime-sized or larger).
21. Turn fireplace off and let cool before
servicing. Only a qualified service person should service and repair fireplace.
22. Operating fireplace above elevations of
4,500 feet could cause pilot outage.
2
104409
OWNER’S MANUAL
PRODUCT
IDENTIFICATION
Middle Log
Front Burner
Front Log
Base Assembly
Figure 1 - Log Base Assembly, Split Oak Set
Top Louver
Assembly
Fireplace
Hood
Firebox Support
Crossover Log
Rear Log
Top Outer
Casing
Rear
Burner
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 ANS Z223.1, also known as 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
WARNING: Do not remove
the metal data plates attached to
the heater base assembly. The
data plates contain important
warranty 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.
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.
Note:
The
Screen
Assembly
Figure 2 - Fireplace
104409
Blower Assembly
(Models VSGF28NTC and
CSG28NTC, Optional for
Model VSGF28NVA)
Bottom
Louver
Assembly
3
DESA INTERNATIONAL
UNVENTED NATURAL GAS 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 blower,
the fireplace requires no electricity making
it ideal for emergency backup heat.
SAFETY DEVICE
This fireplace has a pilot with an Oxygen
Depletion Sensor Shutoff System (ODS).
The ODS/pilot is a required feature for ventfree room heaters. The ODS 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.
BLOWER ASSEMBLY
(VSGF28NTC/CSGF28NTC)
This fireplace has a blower assembly. The
blower operates thermostatically. The
blower circulates heated air from the fireplace into the room. Use of blower is optional. Optional blower accessories are available for model VSGF28NVA.
THERMOSTAT CONTROL
MODELS
(VSGF28NTC/CSGF28NTC)
These fireplaces have a thermostat sensing
bulb and a control valve. The thermostat controls the heat output and flame height. This
maintains a consistent room temperature. Even
the lowest setting provides realistic flames and
glowing embers from two burners. Selecting
higher comfort settings allows fireplace to run
longer, producing greater heat output. At lower
comfort settings, the fireplace will run less.
This results in increased heating comfort. This
can also result in lower gas bills.
VARIABLE MANUAL
CONTROL (VSGF28NVA)
These fireplaces have a variable manual
control valve which allows the user to choose
the heat setting that best suits his needs. Any
setting between low and high may be selected by simply turning the control knob.
AIR FOR
COMBUSTION AND
VENTILATION
WARNING: This heater shall
not be installed in a confined space
or unusually tight construction
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.
Today’s 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
efficient, 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 fuelburning appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National
Fuel Gas Code. NFPA 54/ANS Z223.1, Section 5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 4 through 6 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
outside atmosphere have a continuous water vapor retarder with
a rating of one perm (6 x 10
per pa-sec-m2) or less with openings gasketed or sealed
b. weather stripping has been
added on openable windows and
doors
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
From Outdoors
If your home does not meet all of the
three criteria above, proceed to
mining Fresh-Air Flow for Fireplace
Location
and
, page 6
on page 5.
Ventilation Air
.
and
Deter-
-11
kg
Confined Space and Unconfined
Space
The National Fuel Gas Code (ANS Z223.1,
1992 Section 5.3) defines a confined 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 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 (4.8 m3 per kw) of the aggregate
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
unconfined space.
This heater shall not be installed in a confined space or unusually tight construction
unless provisions are provided for adequate
combustion and ventilation air.
* Adjoining rooms are communicating only
if there are doorless passageways or ventilation grills between them.
4
104409
OWNER’S MANUAL
AIR FOR
COMBUSTION AND
VENTILATION
Continued
DETERMINING FRESH-AIR FLOW FOR FIREPLACE 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.
1. Determine the volume of the space (length x width x height).
Length x Width x Height = _________________cu. ft. (volume of space)
Example:
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. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
_________________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr the space can support)
Example:
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free fireplace ___________________ Btu/Hr
Gas water heater* ___________________ Btu/Hr
Gas furnace ___________________ Btu/Hr
Vented gas heater ___________________ Btu/Hr
Gas fireplace 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.
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:
The space in the above 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 additional fresh air. Your options are as follows:
A. Rework work sheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin-
ing room or add ventilation grills between rooms. See Ventilation Air from Inside Building, page 6.
B. Vent room directly to the outdoors. See Ventilation Air from Outdoors, page 6.
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, the space is an unconfined space. You will need no
additional fresh air ventilation.
Space size 22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling height) = 3168 cu. ft. (volume of space)
3168 cu. ft. (volume of space) ÷ 50 cu. ft. = 63.3 or 63,300 (maximum Btu/Hr the space can support)
Example:
Gas water heater
Vent-free fireplace +
Total =
63,300 Btu/Hr (maximum the space can support)
68,000 Btu/Hr (actual amount of Btu/Hr used)
40,000
28,000
68,000
Btu/Hr
Btu/Hr
Btu/Hr
WARNING: If the area in which the heater may be operated 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
104409
National Fuel Gas Code, ANS Z223.1, 1992, Section 5.3
5
or applicable local codes.
Continued
DESA INTERNATIONAL
UNVENTED NATURAL GAS FIREPLACE
AIR FOR
COMBUSTION AND
VENTILATION
Continued
VENTILATION AIR
Ventilation Air From Inside
Building
This fresh air would come from an adjoining
unconfined 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 NFPA 54/ANS Z223.1, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
WARNING: Rework worksheet, adding the space of the
adjoining unconfined space. The
combined spaces must have
enough fresh air to supply all
appliances in both spaces.
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.
IMPORTANT:
inlet or outlet air into attic if attic has a thermostat-controlled power vent. Heated air entering the attic will activate the power vent.
Do not provide openings for
12"
Ventilation
Grills
Into Adjoining
Room,
Option 1
Figure 3 - Ventilation Air from Inside Building
Or
Remove
Door into
Adjoining
Room,
Option
3
12"
Outlet
Air
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air
Figure 4 - Ventilation Air from Outdoors
Ventilated
Crawl Space
To Attic
To
Crawl
Space
6
104409
OWNER’S MANUAL
INSTALLATION
NOTICE: A qualified service person must install fireplace. Follow
all local codes.
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 primary
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: 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
WARNING: Models VSGF28NTC
/ CSGF28NTC have a three-prong,
grounded electrical plug. This
plug helps protect you against
electrical shock. Only connect
plug to a properly grounded,
three-prong receptacle. Do not
cut or remove the grounding
prong from this plug.
CAUTION: This fireplace creates warm air currents. These currents move heat to wall surfaces
next to fireplace. Installing fireplace next to vinyl or cloth wall
coverings or operating fireplace
where impurities (such as tobacco smoke, aromatic candles,
cleaning fluids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls.
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
or framing materials.
Use the dimensions shown for rough openings to create the easiest installation (see
Built-In Fireplace Installation, page 13).
IMPORTANT:
ture to the air. Although this is beneficial,
installing fireplace in rooms without enough
ventilation air may cause mildew to form
from too much moisture. See Air for Com-
bustion and Ventilation, pages 4 through 6.
IMPORTANT:
level. If fireplace is not level, log set will not
work properly.
Vent-free heaters add mois-
Make sure the fireplace is
CHECK GAS TYPE
Use only natural gas. If your gas supply is
not natural gas, do not install fireplace. Call
dealer where you bought fireplace for proper
type fireplace.
ELECTRICAL HOOKUP
(Models VSGF28NTC/
CSGF28NTC)
This fireplace has a blower assembly with
an electrical cord. The electrical cord 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 fireplace power
cord. This same information applies if installing optional blower accessories to Model
VSGF28NVA.
INSTALLING HOOD
Install hood to rail already installed in fireplace as shown in Figure 5. Use 3 Phillips
screws provided.
Rail
Hood
Screw
Figure 5 - Installing Hood
104409
Continued
7
DESA INTERNATIONAL
UNVENTED NATURAL GAS FIREPLACE
INSTALLATION
Continued
ASSEMBLING AND ATTACHING OPTIONAL BRASS TRIM
(Included with Mantel
Accessory)
IMPORTANT:
box in a wall, do not attach brass trim at this
time. See page 13.
Note:
The instructions below show assem-
bling and attaching brass trim to fireplace.
1. Remove packaging from three pieces
of brass trim.
2. Locate four brass 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 brass trim
(see Figure 6).
5. Slide other end of adjusting plate/shim
in slot on mitered edge of side brass
trim (see Figure 6).
6. While firmly holding edges of brass
trim together, 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 fireplace
cabinet. Align hanging notches on trim
with hanging screws on side of fireplace (see Figure 7). Push trim firmly
into place, sliding hanging notches over
hanging screws.
Side
Brass
Trim
Slot
Figure 6 - Assembling Brass Trim
If you are recessing the fire-
Set
Screws
Adjusting
Plate
Shim
Mitered Edge
Top
Brass
Trim
Slot
Trim Hanging
Screws
Assembled
Brass Trim
Figure 7 - Attaching Brass Trim to
Fireplace
Hanging
Notches
on Trim
INSTALLING OPTIONAL
BLOWER ACCESSORY (FOR
MODEL VSGF28NVA)
The following instructions are for optional
blower accessories GA3700 and GA3700T.
If you do not have this accessory and wish to
purchase one, see Accessories on pages 26
and 27 of this manual.
Installing Optional GA3700
Blower Accessory
1. Remove screws that attach log base assembly to fireplace. Carefully lift up log
base assembly and remove from fireplace, taking care to pull flexible gas line
through the access holes (see Figure 8)
CAUTION: Do not pick up log
base assembly by burners. This
could damage burners. Only
handle base by grates.
2.
Place the blower against lower rear wall
of firebox outer wrapper with the exhaust port directed upward. Align the
holes in top mounting tabs of blower
with holes in wall of wrapper (see Figure 9). Using 2 screws provided, mount
blower and tighten screws securely.
3. Be certain that all wire terminals are
securely attached to terminals on
blower motor and that the screw retaining the green ground wire is tight.
4. Place control knob provided on plastic
control shaft of speed control.
5. Mount the speed control on the front
leg of the left floor support bracket using 2 screws provided (see Figure 10).
Flexible
Gas Line
Screws
Log Base
Figure 8 - Removing Log Base from
Fireplace
Lower
Rear Wall
of Firebox
Exhaust
Post
Screws
Figure 9 - Mounting Blower to Firebox
Blower
.
Left Floor
Support
Bracket
Screws
Speed
Control
Control
Knob
Figure 10 - Attaching Speed Control to
Firebox
Control
Shaft
8
104409
OWNER’S MANUAL
INSTALLATION
Continued
6. Plug in blower power cord.
a. If your f ireplace system is installed
as a freestanding unit with an accessory mantel, determine whether
the power cord will exit the left side
or the right side of the firebox. Install 1 plastic bushing provided into
the 1.5" hole in the floor support
bracket on the exit side (see Figure
11). Install the second plastic bushing provided into the 1.5" hole in the
outer casing through which the
power cord will exit. Route power
cord through both plastic bushings
and plug the power cord into a properly grounded 3-prong wall receptacle near the firebox.
b.If your fireplace system installa-
tion is recessed, plug the power cord
into a properly installed duplex outlet. (If an outlet is not available, the
Vanguard accessory model GA3555
Outlet kit with/ cover can be installed
in your fireplace which will supply
a convenient 3-prong grounded electrical outlet for your blower. Refer
to the installation manual provided
with the model GA3555 accessory
for instructions on wiring the duplex
outlet.)
7. Check to make sure that the power cord
is completely clear of the blower wheel
and that there are no other foreign objects in blower wheel. Turn blower on
and check for operation. Turn blower
off by rotating knob fully counterclockwise before continuing.
9. Replace log base assembly in fireplace.
Feed flexible gas supply line into fireplace base area while replacing log base
assembly. Make sure the entir e flexible
gas line is in fireplace base area.
Note:
If firebrick is installed, make sure
the back of the firebox bottom slides
under the rear panel of the firebrick. (lift
the firebrick up if necessary.)
CAUTION: Do not pick up log
base assembly by burners. This
could damage burners. Only
handle base by grates.
10.
Reattach log base assembly to fireplace
with screws removed in step 1 on page 8.
Note:
Discard the remaining hardware items.
WARNING: Failure to position
the parts in accordance with supplied diagrams or failure to use
only parts specifically approved
with this heater may result in damage or personal injury.
Variable
Blower
Motor
Fan Switch
On
Black
Off
WhiteWhite
Black
Black
Black
110/115
V.A.C.
Green
Wiring
Diagram
WARNING
WARNING ICON G 001
Never attempt to service heater while it is plugged in,
operating, or hot. Burns and electrical shock could
result. Only a qualified service person should service
or repair heater.
If any of the original wire as supplied with the appliance must be
replaced, it must be replaced with 105°C wire or it’s equivalent.
Variable
Fan Switch
Off
On
110/115
V.A.C.
120 Vac. 60 Hz. . 78 Amps
DESA International, Bowling Green, KY
Black
Green
Black
Black
Black
WhiteWhite
Blower
Motor
101584-05
Figure 12 - Location of Wiring Diagram Decal
3" from Blower
WARNING: Never touch the
blower wheel while in operation.
8.
Peel off the backing paper and stick the
supplied wiring diagram decal on the firebox bottom approximately 3" to the right
of the blower speed control (Figure 12)
104409
Right Floor
Support
Bracket
Figure 11 - Installing Plastic Bushing for
.
Power Cord
9
Plastic
Bushing
Continued
DESA INTERNATIONAL
AUTO
OFF
ON
3
2
1
UNVENTED NATURAL GAS FIREPLACE
INSTALLATION
Continued
Installing Optional GA3700T
Blower Accessory
1. Remove screws that attach log base assembly to fireplace (do not discard).
Carefully lift up log base assembly and
remove from fireplace, taking care to
pull flexible gas line through the access holes (see Figure 13).
CAUTION: Do not pick up log
base assembly by burners. This
could damage burners. Only
handle base by grates.
2. Place the blower against lower rear wall
of firebox outer wrapper with the exhaust port directed upward. Align the
holes in top mounting tabs of blower
with holes in wall of wrapper (see Figure 14). Using two #8 screws provided,
mount blower and tighten screws
firm ly.
3. Route terminals end of power cord
through large hole near top of left floor
support bracket. Make sure to pass the
cord from the outside (left side) towards
the center of firebox (see Figure 15).
4. Using two #6 screws provided attach
power cord mounting plate to the outside face of left floor support bracket.
Drive screws from inside (right side)
of floor support bracket. Attach the
plate so that the power cord is directed
towards rear of firebox (see Figure 15).
Tighten screws firmly.
5. Remove the three screws (do not discard) and cover plate from center of
firebox wrapper rear wall. Discard this
cover plate.
6. Mount the supplied thermostatic switch
and cover assembly into firebox wrapper wall. Do this by feeding terminal
ends of wire harness into the hole. Allow wires to fall to bottom of firebox
cavity (see Figure 16).
7. Using three screws from step 5, attach
switch and cover assembly to firebox
wrapper rear wall. Tighten screws
firmly (see Figure 16).
8. Mount selector switch to front flange
of left floor support bracket. Align
graphics on switch upright and push
firmly to snap switch into rectangular
hole. Push the selector switch to the off
(middle) position (see Figure 15).
9.
Install three plastic wire clips provided
into floor support bracket (see Figure 15).
Secure by pushing clips firmly into holes.
WARNING: Failure to connect
all wires properly as indicated
may cause electrical short circuit
or personal injury. A qualified
electrician should check that all
connections are made properly.
10. Attach green ground wire ring terminal to floor support bracket using #10
sheet metal grounding screw provided
(see Figure 15). Tighten screw firmly.
11. Attach all five remaining wiring terminals to the appropriate switch or motor
terminal. Carefully note the correct
color coding (see Figures 17 and 19,
page 11). Push female wire terminals
fully onto male terminal.
12. Secure wires into the appropriate plastic wire clips (see Figure 17, page 11).
Flexible
Gas Line
Screws
Log Base
Figure 13 - Removing Log Base from
Fireplace
Lower Rear
Wall of Firebox
Outer Wrapper
Exhaust Port
#8 Screws
Figure 14 - Mounting Blower to Firebox
Selector
Switch
Figure 15 - Installing Power Cord,
Mounting Plate, and Selector switch
Figure 16 - Installing Switch and Cover
Assembly
Blower
Floor Support Bracket
#6 Screws
Switch and
Cover
Assembly
#10 Screw
Wire
Clips
10
104409
OWNER’S MANUAL
INSTALLATION
Continued
13. Plug in blower power cord.
If your fireplace system is installed
as a freestanding unit with an accessory mantel, install one plastic bush-
ing (provided) into the 1.5" hole in the
lower left side of the outer casing (see
Figure 18). Route power cord through
plastic bushing. Plug the power cord
into a properly grounded three-prong
wall receptacle near the firebox.
If your fireplace system installation
is recessed, install one plastic bushing
provided into the 1.5" hole near the
middle of the left floor support bracket
(see Figure 18). Route power cord
through plastic bushing. Plug the power
cord into a properly installed duplex
outlet. (If an outlet is not available, the
accessory model GA3555 Outlet Kit
with cover can be installed in your fireplace. This will supply a convenient
three-prong grounded electrical outlet
for your blower. Refer to the installation manual provided with the model
GA3555 accessory for instructions on
wiring the duplex outlet.)
14.
Check to make sure that the power cord
and wires are completely clear of the
blower wheel and that there are no other
foreign objects in blower wheel. Turn
blower on by pushing the selector switch
to the on position and check for operation. Turn b lower of f before continuing.
16. Replace log base assembly in fireplace.
Feed flexible gas supply line into fireplace base area while replacing log base
assembly. Mak e sure the entire flexible
gas line is in fireplace base area.
Note:
If firebrick is installed, make sure
the back of the firebox bottom slides
under the rear panel of the firebrick (lift
the firebrick up if necessary.
IMPORTANT: Do not pick up
log base assembly by burners.
This could damage burners. Only
handle base by grates.
17.
Reattach log base assembly to fireplace
with screws removed in step 1, page 10.
Blue
Wire
AUTO
3
OFF
2
ON
1
Red Wire
Figure 17 - Wire Attachment
Black Wire
WARNING: Failure to position the parts in accordance with
supplied diagrams or failure to
use only parts specifically approved with this heater may result in damage or personal injury.
To Switch and
Cover Assembly
Blue
Wire
White
Wire
NOTE:
Green
Wire
To prevent short
circuit, white wire MUST
be connected to motor.
WARNING: Never touch the
blower wheel while in operation.
15. Peel off the backing paper and stick the
supplied wiring diagram decal on the
firebox bottom approximately 12" in
front of blower.
Note:
If any of the original wire as supplied
with the appliance must be replaced, it must
be replaced with 105˚C wire or it's equivalent.
104409
Bushing
Location for
Freestanding
Installation
Bushing Location
for Recessed
Installation
Figure 18 - Installing Bushings
11
Fan Switch
110/115
V.A.C.
(Off/On/Auto)
Off
Black
White
Green
Auto
1
2
3
Red
On
Blue
Blue
Figure 19 - Wiring Diagram
Fan
Switch
(N.O.)
Blower
Motor
Continued
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