Desa LGCFTP Quick start guide
For more information, visit www.desatech.com
WARNING: If the information in this manual is not
— WHAT TO DO IF YOU SMELL GAS
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VENT-FREE COMPACT FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
LGCFTP AND LGCFTN
14,000 to 26,000 Btu/Hr with Thermostat
Shown with
Mantel/Hearth
Base Accessory
www.desatech.com 119508-01B2
SAFETY
alteration, service or
maintenance can cause
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for correct installation
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additional information
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WARNING: This is an
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from the room in which
and ventilation air must
Air
for Combustion and Ven-
tilation
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stalledinanaftermarket,*
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chemicals known to the state
of California to cause cancer or
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TABLE OF CONTENTS
Safety .................................................................. 2
Local Codes......................................................... 4
Product Information............................................. 5
Product Features................................................. 5
Unpacking............................................................ 5
Assembly............................................................. 5
Air For Combustion and Ventilation..................... 7
Installation ........................................................... 9
Operation........................................................... 19
Inspecting Burner .............................................. 21
Cleaning and Maintenance................................ 22
Troubleshooting................................................. 23
Specications .................................................... 27
Replacement Parts............................................ 27
Service Hints ..................................................... 27
Technical Service............................................... 27
Parts.................................................................. 28
Accessories....................................................... 30
Parts Central...................................................... 31
Warranty..............................................Back Cover
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119508-01B 3
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.
Have replace serviced. Some people are
more affected by carbon monoxide than oth-
ers. These include pregnant women, people
with heart or lung disease or anemia, those
under the inuence of alcohol and those at
high altitudes.
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 replace.
WARNING:Donotallowfans
WARNING: Do not use a
insert or other accessory not
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SAFETY
Continued
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adultsawayfromhotsurfacesto
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dren when they are in the room
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1. This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convert ble for use with
other gases.
2.
Do not place propane/LP supply tank(s) in-
sideanystructure.Locatepropane/LPsupply
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 neighbor’s phone. Follow the gas sup-
plier’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.
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SAFETY
Continued
11. Do not run replace
• where ammable liquids or vapors are
used or stored.
• under dusty conditions.
12. Do not use this replace to cook food or
burn paper or other objects.
13. Never place any objects in the replace
or on logs.
14. Do not use replace if any part has been
under water. Immediately call a qualied
service technician to inspect the room
replace and to replace any part of the
control system and any gas control which
has been under water.
15. Turn off and unplug fireplace and let
cool before servicing. Only a qualied
service person should service and repair
replace.
16. Operating replace above elevations of
4,500 feet could cause pilot outage.
17. Do not operate fireplace if any log is
broken. Do not operate replace if a log
is chipped (dime-sized or larger).
18. To prevent performance problems, do
not use propane/LP fuel tank of less than
100 bs. capacity (propane/LP units only).
19. Provide adequate clearances around air
openings.
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.
Usingthese addeditemscan causesoot-
ing. Do not add lava rock around base.
Rock and debris could fall into the control
area of replace.
7. This replace is designed to be smoke-
less. If logs ever appear to smoke, turn
off replace and call a qualied service
person. Note: During initial operation,
slightsmoking couldoccurdue tologcur-
ing and replace burning manufacturing
residues.
8. To prevent the creation of soot, follow the
instructionsinCleaning andMaintenance,
page 22.
9. 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.
10. This replace needs fresh air ventilation to
run properly. This replace has an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the re-
place if not enough fresh air is available.
See Air for Combustion and Ventilation,
page 7. If replace keeps shutting off, see
Troubleshooting, page 23.
LOCAL CODES
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
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.
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119508-01B 5
Figure 1 - Vent-Free Gas Compact
Fireplace
Ignitor Button
Screen
Fireplace
Cabinet
Log Set
Control Knob
PRODUCT INFORMATION PRODUCT FEATURES
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 replaces. The ODS/pilot
shuts off the replace if there is not enough
fresh air.
This replace has a piezo ignitor. This sys-
tem requires no matches, batteries or other
sources to light replace.
THERMOSTATIC HEAT CONTROL
This replace has a thermostat sensing bulb
and a control valve. The thermostat will auto-
maticallymodulatetheheatoutputtomaintain
aconsistentroomtemperature.Thisresultsin
greater replace comfort. This can also result
in lower gas bills.
UNPACKING
CAUTION:Donotremovethe
1. Remove replace from carton.
2. Remove all protective packaging applied
to replace for shipment.
3. Make sure your replace includes one
hardware packet.
4. Check replace for any shipping damage.
If heater is damaged call DESA Heat-
ing, LLC at 1-866-672-6040 for replace-
ment parts before returning to dealer.
ASSEMBLY
WARNING: Always have
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Tools Required:
• Phillips screwdriver
• slotted screwdriver
• 5/16" hex wrench
• scissors
1. Lift screen up and pull out to remove.
2. Cut two plastic straps to remove the log
from the rebox cavity.
3. An optional blower is available. See Ac-
cessories, page 30. Install optional blower
now. Follow installation instructions pro-
vided with blower.
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ASSEMBLY
Continued
ASSEMBLING AND INSTALLING TRIM
1. Remove packaging from 3 pieces of trim.
2. Locate 2 adjusting plates with set screws
and 2 shims in hardware packet.
3. Align shim under adjusting plate as shown
in Figure 4.
4. Slide one end of adjusting plate/shim
in slot on mitered edge of top trim (see
Figure 4).
5. Slide other end of adjusting plate/shim
in slot on mitered edge of side trim (see
Figure 4).
6. While rmly holding edges of trim together,
tighten both set screws on adjusting plate
with slotted screwdriver.
7. Repeat steps 2 through 6 or other corner.
8. Trim should be attached only after your
fireplace has been installed into the
mantel or wall. To install trim, rmly snap
trim assembly on shoulder screws (see
Figure 5). Shoulder screws are located
on replace cabinet.
Figure 4 - Assembling Trim
Top Trim
Mitered Edge
Side Trim
Slot
Shim
Adjusting
Plate
Set
Screws
Slot
Figure 5 - Attaching Trim to Compact
Fireplace
Assembled
Trim
Shoulder
Screw
Figure 2 - Assembling Fireplace
Log
Screen
Burner Support with
Log Locator Tabs
Branch
Support
Shoulder
Screw
4. Remove log packaging material and
discard packaging. Gently place log set
on burner support (see Figure 2). The log
should t at against top of burner sup-
port and log locator tabs t into the slots
under the log. Do not allow log to contact
ame. If ame contacts log, soot will be
created.
5. Reattach screen by placing the notches
in the screen frame over the shoulder
screws and pushing down.
Figure 3 - Assembling Hood
Sheet Metal
Screws
Firebox
Top Hood
1. Locate four black Phillips sheet metal
screws from the hardware packet.
2. Insert hood between rebox top and lou-
vers (see Figure 3).
3. Align screw holes on hood with screw
holes on rebox top.
4. Insert screws as shown in Figure 3.
Tighten screws rmly.
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119508-01B 7
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall
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NationalFuel Gas
Code,ANSIZ223.1/NFPA54,the
International Fuel Gas Code, or
Today’s homes are built more energy efcient
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
efcient, your home needs to breathe. Fresh
air must enter your home.All fuel-burning ap-
pliancesneedfreshair forpropercombustion
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 appli-
ances.
The following are excerpts from NationalFuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on pages 7 through 9 will help
you classify your space and provide adequate
ventilation.
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.
construction where:
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-112
and
and
If your home meets all of the three criteria
above, you must provide additional fresh air.
See Ventilation Air From Outdoors, page 9.
If your home does not meet all of the three
criteria above, proceed to DeterminingFresh-
Air Flow For Fireplace Location, page 8.
The National Fuel Gas Code, ANSI Z223.1/
NFPA54 denes a conned space as a space
whose volume is less than 50 cubic feet per
1,000 Btu/hr (4.8 m3 per kw) of the aggregate
input rating of all appliances installed in that
space and an unconned space as a space
whose volume is not less than 50 cubic feet
per 1,000 Btu/hr (4.8 m3 per kw) of the ag-
gregateinput rating ofall 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 un-
conned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
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DETERMINING FRESH-AIR FLOW
Use this work sheet to determine if you have
a conned or unconned space.
Includes the room in which you will
install heater 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: Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2560 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 deter-
mine the maximum Btu/Hr the space can
support.
________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2560 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 heater ____________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 heater +___________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 used)
AIR FOR COMBUSTION AND VENTILATION
Continued
Example: 51,200 Btu/Hr (maximum the
space can support)
56,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the above example is a conned
space because the actual Btu/Hr used is more
than the maximum Btu/Hr the space can sup-
port. 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 unconned space, remove door to adjoin-
ing 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 9.
C. Install a lower Btu/Hr replace, if lower Btu/
Hr size makes room unconned.
If the actual Btu/Hr used is less than the
maximum Btu/Hr the space can support, the
space is an unconned space. You will need
no additional fresh air ventilation.
WARNING:Iftheareainwhich
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National Fuel
GasCode,ANSIZ223.1/NFPA54,
theInternationalFuelGasCode,
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned 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 6, page 9). You can
also remove door into adjoining room (see
option 3, Figure 6). Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation for required size
of ventilation grills or ducts.
30,000
26,000
56,000
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119508-01B 9
AIR FOR COMBUSTION AND VENTILATION
Continued
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
Figure 6 - Ventilation Air from Inside
Building Shown with Optional Mantel
Or
Remove
Door into
Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
12"
Vent lation
Grills into
Adjoining
Room,
Option 1
Figure 7 - Ventilation Air from Outdoors
Shown with Optional Mantel
Outlet
Air Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
T o
Crawl
Space
T o Attic
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
inletor outlet airinto attic if attic has a thermo-
stat-controlled power vent. Heated air entering
the attic will activate the power vent.
INSTALLATION
NOTICE:Thisheaterisintended
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Note: Your replace is designed to be used in
zero clearance installations. Wall or framing
material can be placed directly against any ex-
terior surface of your replace, except where
standoff spacers are integrally attached. If
standoff spacers are attached to your re-
place, 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 11).
Use the correct gas type (natural or propane/
LP) for your unit. If your gas supply is not
correct, do not install replace. Call dealer
where you bought replace for proper type
replace.
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INSTALLATION ITEMS
Before installing replace, make sure you
have the items listed below.
• external regulator - propane/LP only (sup-
plied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• ground joint union
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certied equipment shutoff
valve with 1/8" NPT tap is an acceptable al-
ternative to test gauge connection. Purchase
the optional CSA design-certied equipment
shutoff valve from your dealer.
Note: If desired, purchase a four-sided brass
trim kit for built-in installations. See Acces-
sories, page 30.
WARNING: Maintain the
minimum clearances shown
You can recess rebox into the wall. You can
also position replace in the optional cabinet
or corner mantels. IMPORTANT: Only use
optional cabinet or corner mantels speci-
ed in this manual. Purchase the optional
mantel from your dealer (see Accessories,
page 30).
WARNING: Never install the
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INSTALLATION
Continued
Figure 9 - Mounting Clearances As
Viewed From Front of Fireplace Shown
with Optional Mantel
Figure 8 - Mounting Clearances As
Viewed From Front of Fireplace Shown
Built In The Wall
6"
Minimum
From
Sides Of
Fireplace
Left
Side
CEILING
36" Minimum
FLOOR
Right
Side
To p Of
Mantel Can
Be Flush
With Wall
Left
Side
CEILING
Right
Side
36"
Minimum
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currents move heat to wall sur-
smoke,aromaticcandles,clean-
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119508-01B 11
IMPORTANT: Vent-free replaces add mois-
ture to the air. Although this is benecial,
installing replace in rooms without enough
ventilation air may cause mildew to form from
too much moisture. See Air for Combustion
and Ventilation, page 7.
Note: When installing replace directly on
carpeting, tile or other combustible material,
other than wood ooring, the replace shall be
installed on a metal or wood panel extending
the full width and depth of the replace.
CAUTION: If you install the
For convenience and efciency, install replace
• where there is easy access for operation,
inspection and service.
• in coldest part of room
An optional blower kit is available from your
dealer. See Accessories, page 30. If plan-
ning to use blower, locate replace near an
electrical outlet.
Built-in installation of this replace involves
installing replace into a framed-in enclosure.
This makes the front of replace ush with
wall. An optional brass trim kit accessory is
available (see Accessories, page 30). Brass
trim will extend past sides of replace ap-
proximately 1/2". This will cover the rough
edges of the wall opening. If installing a built-in
mantel above the replace, you must follow
the clearances shown in Figure 14, page 12.
Follow the instructions below to install the
replace in this manner. 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.
1. Frame in rough opening. Using dimen-
sions shown in Figure 10.
If installing in a corner, use dimensions
shown in Figure 11 for the rough opening.
The height is 26 7/8" which is the same as
the wall opening above.
2. If installing GA3450TA blower accessory,
do so at this time. Follow instructions in-
cluded with blower accessory. Note: If not
installing blower accessory, you may wish
to run electrical wiring to your replace
for future blower installation (see Ac-
cessories, page 30). Use only approved
three-wire electrical wiring.
Note: A qualied installer should make all
electrical connections.
Actual Framing
Height 26" 26 7/8"
Front Width 26 3/4"26 7/8"
Depth 9 1/2"10 1/2"
Bottom 3/4" 3/4"
36
5
/
8
"25
7
/
8
"
51
3
/
4
"
26
7
/
8
"
26
7
/
8
"
26
7
/
8
"
3/4" Off
The Floo
r
Minimum
10
1
/
2
"
Figure 10 - Rough Opening for Installing
in Wall
Figure 11 - Rough Opening for Installing
in Corner
INSTALLATION
Continued
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INSTALLATION
Continued
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cal outlet is included with the
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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.
4. If you have not assembled rebox, follow
instructions on page 5.
5. Carefully set replace in front of rough
opening with back of replace inside wall
opening.
6. Attach exible gas line to replace gas
regulator.See Connecting to Gas Supply,
page 15.
7. Bend four nailing anges on outer casing
with pliers (see Figure 12).
8. Attach replace to wall studs using nails
or wood screws through holes in nailing
ange.
9. Check all gas connections for leaks. See
Checking Gas Connections, page 17.
10. If using optional brass trim kit, install the
trim after nal nishing and/or painting of
wall. See instructions included with brass
trim accessory for attaching brass trim.
IMPORTANT: When nishing your rebox,
combustible materials such as wall board,
gypsum board, sheet rock, drywall, plywood,
etc.maybebuttedupnexttothesidesandtop
of the rebox. Combustible materials should
never overlap the rebox front facing.
WARNING: Do not allow any
Figure 12 - Attaching Fireplace to Wall
Studs
Nails or Wood
Screws
Nailing
Flanges
WARNING: Do not allow
materialstocoveranynecessary
WARNING: Never modify or
cover the louvered slots on the
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.
minimum clearances shown in
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119508-01B 13
13"
16"
19"
21"
2 1/2"
6"
8"
10"
INSTALLATION
Continued
Figure 13 - Minimum Mantel Clearances
for Built-In Installation
Mantel Shelf
Note: All vertical
measurements are
from top of replace
opening to bottom
of mantel shelf. All
measurements are
in inches.
Side of
Firebox
NOTICE:Ifyourinstallationdoes
not meet the minimum clear-
ances shown, you must do one
-
Figure 14 - Removing Upper Louver
Assembly
Upper
Louver
Assembly
Screws
Blower Bracket
Mounting Holes
1. Open bottom louver assembly by swinging
the assembly down (see Figure 15).
2. Using short Phillips screwdriver, remove
the screw under the center of the branch
support. Rotate valve cover shield clock-
wise and slide out. IMPORTANT: Do not
remove shoulder screw on the left side of
valve cover shield. Slide the valve cover
shield off of the shoulder screw (see Fig-
ure 15).
Note: If you do not have a short Phil-
lips screwdriver, the screen, log set and
branch support must be removed so a
longer screwdriver may be used. See
Connecting Equipment Shutoff Valve to
Heater Control, page 17, steps 1 and 2.
Refer to instructions provided with the mantel
for assembly and installation instructions.
Refer to instructions on page 4 for rebox as-
sembly. If a blower accessory is being used,
it should be installed before securing your
replace to the mantel (see Installing Blower
Accessory GA3450TA).
INSTALLING BLOWER ACCESSORY
GA3450TA
To install the blower accessory, you must rst
remove the upper louver assembly.
1. Lift screen off heater.
2. Remove 4 screws from louver assembly
(see Figure 14). Save these screws.
3. Pull louver assembly straight out from
the cabinet. Be careful not to scratch the
paint. Set louver assembly and screws
aside.
Remove
Screw
Valve
Cover
Shield
Shoulder Screw
Figure 15 - Removing Valve Cover Shield
Branch
Support
Snap Bushings Bottom Louver
Assembly
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INSTALLATION
Continued
-
-
Note: If you are using a mantel with your
heater, use the following instructions. If your
heater is built-in, see For Built-In Installation
on page 15.
1. Install snap bushings found in hardware
kit into both holes in rear of valve cover
shield.
2. Make sure wire harness is rmly con-
nected to the terminals on the blower
bracket assembly.
3. Note the wire locations on back of AUTO/
OFF/ON switch. The terminals on back of
switch are numbered 1, 2 and 3. Carefully
remove red wire from terminal 1 and blue
wire from terminal 3. Black wire can remain
on middle terminal 2 (see Figure 16).
4. Carefully disconnect green and white
wires at their insulated connectors.
5. In top of the heater cabinet, locate the 4
mountingholes on the outer casing.Align
these 4 holes with those on the blower
bracket assembly. Attach blower bracket
assembly to the outer casing with 4 #10
screws provided (see Figure 16).
6. Route the wire harness through the hole
in left side of bafe. Pull wire harness
through lower opening above where valve
shield was removed. (see Figure 16).
7. Insert the 4 wire harness into one of the
round holes in rear of valve cover shield
and through the rectangular hole in the
front of shield (see Figure 16).
8. Reconnect red wire to switch position 3.
Reconnect blue wire to switch position 1.
Reconnect green and white wires.
9. Install switch plate on valve cover shield
with 2 #10 screws provided (see Figure
17). Reinstall valve cover shield. Route
power cord out of cabinet by inserting it
through the bushing on the outer casing
(see Figure 16). Plug fan kit into 120-Volt
grounded power supply and test opera-
tion. Note: When switch is in the AUTO
position, the fan will start after the heater
has run for a few moments. The fan will
continue to run for several moments after
the heater has been turned off. When
switch is in the ON position, the fan will
run until turned to OFF. Reinstall upper
louver assembly and hood if previously
removed, (see Figure 14, page 13). Close
lower louver door.
Figure 16 - Installing Blower Bracket
Assembly
Wire Harness
Blower Bracket
Assembly
Screw
Power
Cord
Valve Cover Shield Box
Cover
Wire
Harness
Switch
Plate
Switch
Bafe
Wiring Routing
Hole in Bafe
Blue
Red
Figure 17 - Installing Switch Plate to
Valve Cover Shield
Switch
Plate
Screw
Valve
Cover
Shield
www.desatech.com
119508-01B 15
INSTALLATION
Continued
For Built-In Installation
WARNING: A licensed elec-
-
Follow instructions in Removing Valve Cover
Shield, page 13, then
1. Install a snap bushing found in hardware
kit into one of the holes found on rear of
valve cover shield. The other hole is for a
strainreliefclamp(notsupplied)tosecure
incoming electrical supply.
2. Follow steps 2 through 6 in Installing
Blower Assembly, page 14. Also remove
black wire from middle switch terminal 2.
3. Remove black plastic strain relief and
power cord from switch plate. The power
cord supplied will not be used in built-in
installations.Popin theplastic snapbush-
ing found in hardware kit into the hole left
by supply cord/strain relief.
4. A licensed electrician must follow the wir-
ing diagram to connect incoming electri-
cal supply to fan kit wiring harness (see
Figure 18).
5. Plug power cord to the outlet receptacle
(not provided) as shown in Figure 19.
Wind the extra cable in power cord and
tie it up with the plastic wire strap (see
Figure 19). Set the cable bundle between
the burner bracket and outer casing, away
from the burner.
6. Reinstall valve cover shield.
Figure 18 - Wiring Diagram For Blower
Accessory Built-In Installation
Red
Red
Fan Switch
(Auto/Off/On)
Blue
Blue
Thermostat
Switch
(N O )
Green
White Green
White
On
11 0/115
VA C
Blower
Motor
Black
Off
1
23
Auto
Blower Bracket
Assembly
Screw
Wire
Harness
Power
Cord
Valve Cover
Shield Box
Cover Wire
Harness
Switch
Plate
Switch
Clamp
Connector
(not included)
Outlet
Receptacle
Blue Red
Plastic Wire
Strap
Figure 19 - Installing Blower Bracket
Assembly
Extension Cord
Use extension cord if needed. The cord must
have a three-prong, grounding plug and a
three-hole receptacle. Make sure cord is in
goodshape.Itmustbeheavyenoughtocarry
the current needed. An undersized cord will
cause a drop in line voltage. This will result in
loss of power and overheating. Use a No. 16
AWG cord for lengths less than 50 feet.
7. Test to make sure the blower is working
properly.
8. Reinstallupperlouverassemblyandhood
if previously removed, (see Figure 14,
page 13). Close lower louver door.
www.desatech.com 119508-01B16
INSTALLATION
Continued
-
WARNING: Never connect
For propane/LP units, 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 reduce
incoming gas pressure, replace regulator
damage could occur. Install external regula-
tor with the vent pointing down as shown in
Figure 20. Pointing the vent down protects it
from freezing rain or sleet.
CAUTION: Use only new,
-
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 replace
(see Figure 21).
IMPORTANT: Install an equipment shutoff
valve in an access ble location. The equip-
ment shutoff valve is for turning on and shut-
ting off the gas to the appliance.
Check your building codes for any special
requirements for locating equipment shutoff
valve to replaces.
Propane/LP
Supply Tank External
Regulator
with Vent
Pointing
Down
Figure 20 - External Regulator with Vent
Pointing Down
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.
We recommend that you install a sediment
trap in supply line as shown in Figure 21.
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 controls. If sediment trap is not
installed or is installed wrong, replace may
not run properly.
* Purchase the optional CSA design-certied
equipment shutoff valve from your dealer.
Figure 21 - Gas Connection
CSA Design-Certied
Equipment Shutoff Valve
With 1/8" NPT Tap*
From External
Regulator (11"
W.C. to 14" W.C.
Pressure)
NATURAL
From Gas Meter
(5" W.C. to 10.5"
W.C. Pressure)
3" Minimum
Pipe Cap Tee
Nipple Joint
Sediment Trap
www.desatech.com
119508-01B 17
INSTALLATION
Continued
CONTROL
Installation Items Needed
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not
provided)
1. Remove fireplace screen. Remove 2
screws that hold replace screen in place
for shipping. These screws are located
near top of screen. Discard screws. Lift re-
place screen up and pull out to remove.
2. Remove screws that attach branch sup-
port to replace (see Figure 22). Carefully
lift up branch support and remove from
replace (see Figure 22).
3. Route exible gas line, included, from
fireplace control to equipment shutoff
valve through side or rear access holes
in outer casing.
-
4. Apply pipe joint sealant lightly to male
threads of gas connector attached to
exible gas line/equipment shutoff valve
(see Figure 23).
5. Check all gas connections for leaks. See
Checking Gas Connections.
6. Replace branch support back into re-
place. Feed exible gas line into replace
base area while replacing branch support.
Make sure the entire exible gas line is
in replace base area. Reattach branch
support to replace with screws removed
in step 2.
Figure 22 - Removing Log Base
Assembly From Fireplace
Branch
Support
Screen
Screen
Shipping
Screw Shoulder
Screw
Flex ble
Gas Line
Figure 23 - Attaching Flexible Gas Line
to Equipment Shutoff Valve
Flex ble Gas Line from
Fireplace Gas Regulator
Provided with Fireplace
To Fireplace
Gas Regulator Equipment Shutoff
Valve Provided by
Installer
and connections, internal and
external to unit, for leaks after
WARNING: Never use an
-
To External
Regulator
NATURAL
To Gas Supply
www.desatech.com 119508-01B18
INSTALLATION
Continued
CAUTION: Make sure exter-
Connecting to Gas Supply,
1. Disconnect appliance with its appliance
main gas valve (control valve) and equip-
mentshutoffvalvefromgassupplypiping
system. Pressures in excess of 1/2 psig
will damage heater 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.
4. Check all joints of gas supply piping sys-
tem.Apply a noncorrosive leak detection
uid to gas joints. Bubbles forming show
a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff
valve to gas supply. Check reconnected
ttings for leaks.
1. Close equipment shutoff valve (see Fig-
ure 24).
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. Checkalljointsfromgasmeterfornatural
or propane/LP supply to equipment shut-
Figure 24 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Figure 25 - Checking Gas Joints Shown
with Optional Mantel (Propane/LP Gas)
Equipment Shutoff Valve
Propane/LP
Supply
Tank
Figure 26 - Checking Gas Joints Shown
with Optional Mantel (Natural Gas)
Gas Meter
Equipment Shutoff Valve
off valve (see Figures 25 and 26). Apply
a noncorrosive leak detection uid to gas
joints. Bubbles forming show a leak.
4. Correct all leaks at once.
CONNECTIONS
1. Open equipment shutoff valve (see Fig-
ure 24).
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 thermostat gas valve (see Fig-
ures 25 and 26). Apply a noncorrosive
leak detection uid to gas joints. Bubbles
forming show a leak.
5. Correct all leaks at once.
6. Light replace (see Operation, page 19).
Check all other internal joints for leaks.
7. Turn off replace (see To Turn Off Gas to
Appliance, page 20).
8. Replace front panel.
www.desatech.com
119508-01B 19
OPERATION
1. STOP! Read the safety information in
column 1.
2. Make sure equipment shutoff valve is fully
open.
3. Turn control knob clockwise to the
OFF position.
4. Wait ve (5) minutes to clear out any gas.
Then smell for gas, including near the
oor. If you smell gas, STOP! Follow “B”
in the safety information, column 1. If you
don’t smell gas, go to the next step.
5. Turn control knob counterclockwise
to the PILOT position. Press in control
knob for 5 seconds (see Figure 27).
Note: You may be running this replace
for the rst time after hooking up to gas
supply. If so, the control knob may need
to be pressed in for 30 seconds or more.
This will allow air to bleed from the gas
system.
• If control knob does not pop up when
released, contact a qualified service
person or gas supplier for repairs.
6. With control knob pressed in, push down
and release ignitor button. This will light
pilot. The pilot is attached to the front of
burner. If needed, keep pressing ignitor
button until pilot lights.
Note: If pilot does not stay lit, refer to
Troubleshooting, page 23. Also contact a
qualied service person or gas supplier for
repairs. Until repairs are made, light pilot
with match. To light pilot with match, see
Manual Lighting Procedure, page 20.
Ignitor
Button
Figure 27 - Control Knob In the OFF
Position
Control
Knob
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: If you do not fol-
low these instructions exactly,
-
-
WHAT TO DO IF YOU SMELL GAS
-
-
LIGHTING
INSTRUCTIONS
-
www.desatech.com 119508-01B20
OPERATION
Continued
7. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob.
Note: If pilot goes out, repeat steps 3
through 7. This replace has a safety
interlock system. Wait one (1) minute
before lighting pilot again.
8. Turn control knob counterclockwise
to desired heating level. The main burner
should light. Set control knob to any heat
level between HI and LO.
9. To leave pilot lit and shut off burners only,
turn control knob clockwise to the
PILOT position.
CAUTION: Do not try to ad-
Thermocouple
Pilot Burner
Figure 28 - Pilot
Ignitor
Electrode
TO TURN OFF GAS
1. Turn control knob clockwise to the
OFF position.
2. Turn off all electric power to the appliance
if service is to be performed.
3. Close equipment shutoff valve (see Figure
24, page 18).
THERMOSTAT
The thermostatic control used on this replace
differs from standard thermostats. Standard
thermostatssimplyturn onand offtheburner.
The thermostat used on this replace senses
theroomtemperature.Thethermostatadjusts
the amount of gas ow to the burner. This
increases or decreases the burner flame
height. At times the heater will cycle back on
when room temperature drops below the set
temperature.
The control knob can be set to any heat level
between HI and LO.
Note: The thermostat sensing bulb measures
the temperature of air near the fireplace
cabinet. This may not always agree with
room temperature (depending on housing
construction, installation location, room size,
open air temperatures, etc.). Frequent use of
your replace will let you determine your own
comfort levels.
MANUAL LIGHTING
1. Follow steps 1 through 5 under Lighting
Instructions, page 19.
2. With control knob pressed in, strike match.
Hold match to pilot until pilot lights.
3. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob. Now follow step 8
under Lighting Instructions, column 1.
This manual suits for next models
1
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