Desa CSL2718N Quick start guide
For more information, visit www.desatech.com
WARNING: If the information in this manual is not fol-
— WHAT TO DO IF YOU SMELL GAS
• Do not touch any electrical switch; do not use any
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ROYAL ENGLISH OAK AND WINCHESTER OAK UNVENTED
(VENT-FREE) GAS LOG HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
18" VARIABLE MANUALLY-CONTROLLED
MODELS CSL2718N AND CSL2718P
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SAFETY INFORMATION
TABLE OF CONTENTS
Safety Information ............................................... 2
Product Identication........................................... 4
Local Codes......................................................... 5
Unpacking............................................................ 5
Product Features................................................. 5
Air For Combustion and Ventilation ..................... 5
Installation ........................................................... 8
Operating Heater............................................... 16
Inspecting Burners............................................. 18
Cleaning and Maintenance................................ 18
Troubleshooting................................................. 20
Specications .................................................... 24
Technical Service............................................... 24
Service Hints ..................................................... 24
Replacement Parts............................................ 24
Accessories ....................................................... 25
Parts Central...................................................... 25
Illustrated Parts Breakdown and Parts List........ 26
Warranty Information ...........................Back Cover
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teration, service or main-
to this manual for correct
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tance or additional infor-
is for installation only in a
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installations in accor-
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includes instructions stat-
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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stalled in an aftermarket,*
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known to the State of California
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Early signs of
carbon monoxide poisoning resemble the u, with
headaches, dizziness or nausea. If you have these
signs, the replace may not be working properly.
Get fresh air at once! Have replace 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
inuence of alcohol and those at high altitudes.
Natural and propane/
LP gases are odorless. An odor-making agent is
added to these gases. 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.
this heater or its controls can
WARNING: Do not use a
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SAFETY INFORMATION
Continued WARNING: Do not allow fans
will remain hot for a time after
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dren when they are in the room
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SAFETY INFORMATION
Continued
Figure 1 - Yellow Flame Vent-Free Gas
Log Heater
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. To prevent performance problems, the use
of a propane/LP tank of less than 100 lbs.
capacity is not recommended (propane/LP
units only).
4. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not use
any phone in your building
• immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions
• if you cannot reach your gas supplier, call
the re department
5. This heater shall not be installed in a bedroom
or bathroom unless installed as a vented appli-
ance (see Installing Damper Clamp Accessory
for Vented Operation, page 11).
6. Do not burn solid-fuel in a masonry or UL127
factory-built replace in which a vent-free
room heater is installed.
7. Before installing in a solid fuel burning
replace, the chimney ue and rebox must
be cleaned of soot, creosote, ashes and loose
paint by a qualied chimney cleaner. Creosote
will ignite if highly heated. A dirty chimney
ue may create and distribute soot within
the house. Inspect chimney ue and rebox
for damage. If damaged, repair ue before
operating heater.
8.
If replace has glass doors, never operate this
heater with glass doors closed. If you operate
heater with doors closed, heat buildup inside re-
place will cause glass to burst. Make sure there are
no obstructions across openings of replace.
9. This log heater is designed to be smokeless. If
logs ever appear to smoke, turn off heater and
call a qualied service person. Note: During
initial operation, slight smoking could occur
due to log curing and heater burning manu-
facturing residues.
10. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 18.
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. This heater needs fresh, outside air ventilation
to run properly. This heater has an Oxygen De-
pletion Sensing (ODS) safety shutoff system.
The ODS shuts down the heater if not enough
fresh air is available. See Air for Combustion
and Ventilation, page 5. If heater keeps shutting
off, see Troubleshooting, page 20.
13. Do not run heater
• where ammable liquids or vapors are used
or stored
• under dusty conditions
14. Do not use this heater to cook food or burn
paper or other objects.
15. Do not use heater if any part has been exposed
to or under water. Immediately call a qualied
service technician to inspect the room heater
and to replace any part of the control system
and any gas control which has been under
water.
16. Do not operate heater if any log is broken. Do
not operate heater if a log is chipped (dime-
sized or larger).
17. Turn heater off and let cool before servicing.
Only a qualied service person should service
and repair heater.
18. Operating heater above elevations of 4,500
feet could cause pilot outage.
19. Provide adequate clearances around air
openings.
PRODUCT
IDENTIFICATION
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LOCAL CODES
Install and use heater with care. Follow all local
codes. In the absence of local codes, use the lat-
est edition of The National Fuel Gas Code ANSI
Z223/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
Note: Where listed vented decorative logs are
required, thermostat models are not permitted.
PRODUCT FEATURES
OpERATION
This heater is clean burning. It requires no outside
venting. There is no heat loss out a vent or up a
chimney. Heat is generated by realistic, dancing
yellow ames. This heater is designed for vent-free
operation with ue damper closed. It has been
tested and approved to ANSI Z21.11.2 standard
for unvented heaters. State and local codes in
some areas prohibit the use of vent-free heaters.
Non-thermostat models may also be operated as
a vented decorative (ANSI Z21.60) product by
opening ue damper.
SAFETY pILOT
This heater has a pilot with an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free room
heaters. The ODS/pilot shuts off the heater if there
is not enough fresh air.
pIEzO IGNITION SYSTEM
This heater has a piezo ignitor. This system re-
quires no matches, batteries or other sources to
light heater.
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall
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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 ef-
cient, your home needs to breathe. Fresh air must
enter your home. All fuel-burning appliances need
fresh air for proper combustion and ventilation.
UNPACKING
CAUTION: Do not remove the
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1. Remove log and heater base assembly from
carton. Note: Do not pick up heater base as-
sembly by burners. This could damage heater.
Always handle base assembly by grate.
2. Remove all protective packaging applied to
log and heater for shipment.
3. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought heater.
State of Massachusetts: The installa-
tion must be made by a licensed plumber
or gas fitter in the Commonwealth of
Massachusetts.
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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Exhaust fans, replaces, clothes dryers and fuel
burning appliances draw air from the house to
operate. You must provide adequate fresh air for
these appliances. This will insure proper venting
of vented fuel-burning appliances.
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 classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on pages 5 through 7 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 unusually
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
See Ventilation Air From Outdoors
If your home does not meet all of the three
Determining
Fresh-Air Flow For Heater Location
AIR FOR COMBUSTION
AND VENTILATION
Continued
The National Fuel Gas Code ANSI Z223.1/NFPA
54 denes a conned 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 unconned 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 com-
municating directly with the space in which the
appliances are installed*, through openings not
furnished with doors, are considered a part of the
unconned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation grills
between them.
DETERMINING FRESH-AIR FLOW
FOR FIREpLACE LOCATION
Use this work sheet to determine if you have a
conned or unconned space.
Includes the room in which you will install
replace plus any adjoining rooms with doorless pas-
sageways 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) = 2,560 cu. ft.
(volume of space)
If additional ventilation to adjoining room is
supplied with grills or openings, add the volume
of these rooms to the total volume of the space.
2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
__________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2,560 cu. ft. (volume of space) x 20 =
51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free replace __________ Btu/Hr
Gas water heater* __________ Btu/Hr
Gas furnace __________ Btu/Hr
Vented gas heater __________ Btu/Hr
Gas replace logs __________ Btu/Hr
Other gas appliances* + __________ Btu/Hr
Total = __________ Btu/Hr
* Do not include direct-vent gas appliances. Di-
rect-vent draws combustion air from the outdoors
and vents to the outdoors.
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Example:
Gas water heater __________ Btu/Hr
Vent-free replace + __________ Btu/Hr
Total = __________ Btu/Hr
4. Compare the maximum Btu/Hr the space can
support with the actual amount of Btu/Hr used.
_________
Btu/Hr (maximum the space can support)
_________
Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space
can support)
71,500 Btu/Hr (actual amount of
Btu/Hr used)
The space in the example is a conned 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 unconned
space, remove door to adjoining room or add
ventilation grills between rooms. See Ventilation
Air From Inside Building, page 7.
B. Vent room directly to the outdoors. See Ventila-
tion Air From Outdoors, page 7.
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 un-
conned space. You will need no additional fresh
air ventilation.
WARNING: If the area in
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in the National Fuel Gas Code,
ANSI Z223.1/NFPA54 Section 5.3
This fresh air would come from an adjoining un-
conned space. When ventilating to an adjoining
unconned space, you must provide two perma-
40,000
31,500
71,500
AIR FOR COMBUSTION
AND VENTILATION
Continued
Figure 2 - Ventilation Air from Inside
Building
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
Figure 3 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
nent 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 2). You
can also remove door into adjoining room (see
option 3, Figure 2). 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.
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 oor. Connect these items directly to the
outdoors or spaces open to the outdoors. These
spaces include attics and crawl spaces. Follow the
National Fuel Gas Code ANSI Z223.1/NFPA 54,
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 thermostat-
controlled power vent. Heated air entering the attic
will activate the power vent.
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WARNING: Never install the
heater
•
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• in a recreational vehicle
•
where curtains, furniture, cloth-
are less than 42" from the front,
• in windy or drafty areas
CAUTION:Thisheatercreates
move heat to wall surfaces next
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IMPORTANT: Vent-free heaters add moisture to
the air. Although this is benecial, installing heater
in rooms without enough ventilation air may cause
mildew to form from too much moisture. See Air
for Combustion and Ventilation, page 5.
CHECK GAS TYpE
Use only the correct gas type (natural or pro-
pane/LP) for your unit. If your gas supply is not
correct, do not install heater. Call dealer where
you bought heater for proper type heater.
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INSTALLATION
NOTICE: This heater is intended
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NOTICE:Stateorlocalcodesmay
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WARNING: Seal any fresh
air vents or ash clean-out doors
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INSTALLATION AND CLEARANCES
WARNING: Maintain the
Materials: Side Wall 16", Ceiling 42"
Height 17", Depth 14",
Front Width 24", Rear Width 20" (measured at
14" depth).
Carefully follow the instructions below. This will
ensure safe installation into a masonry, UL127-
listed manufactured replace or certied vent-free
rebox.
Minimum Clearances For Side
A. Clearances from the side of the fireplace
cabinet to any combustible material and wall
should follow diagram in Figure 4.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This combus-
tible material must be 4" from the side of the
replace cabinet (see Figure 4).
Note: When installing your gas logs into
a manufactured firebox, follow firebox
manufacturer’s instructions for minimum
clearances to combustible materials.
B. Clearances from the top of the replace
opening to the ceiling should not be less
than 42".
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example
INSTALLATION
Continued
NOTICE: Manual control heaters
If so, you must always run heater
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InstallingDamperClampAccessory
for Vented Operation
Clearances
Note: If using a mantel, proceed to If Using
Mantel, page 10. If not using a mantel, follow the
information below.
You must have noncombustible material(s) above the
replace opening. Noncombustible materials (such
as slate, marble, tile, etc.) must be at least 1/2" thick.
With sheet metal, you must have noncombustible
material behind it. Noncombustible material must
extend at least 8" up. See Figure 5 for minimum
clearances.
IMPORTANT: If you cannot meet these minimum
clearances, you must operate heater with chimney
ue damper open. Go to Installing Damper Clamp
Accessory for Vented Operation, page 11.
12" or more Noncombustible material okay.
Between 8" and 12"
Noncombustible material okay.
Less than 8" Noncombustible material must
be extended to at least 8".
See Between 8" and 12",
above. If you cannot extend
material, you must operate
heater with ue damper open.
Heat Resistant
Material
(A)
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
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Minimum Non-
Combustible
Material
Minimum Non-
Combustible
Material Height
Distances to
Underside of
Mantel
Top of Fireplace
Opening
Underside of
Mantel Shelf
Mantel Shelf
8"
(A)
8" 14" 17" 20"
All minimum
distances are
in inches
Log Set
All Models
2 1/2"
6"
8"
10"
You must have noncombustible material(s) above
the replace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least 1/2"
thick. With sheet metal, you must have noncombus-
tible material behind it. Noncombustible material
must extend at least 8" up. Even if noncombustible
material is more than 12", you may need the hood
accessory to deect heat away from your mantel
shelf. See Figure 5 (see page 9), Figure 6 and
Figure 7 for minimum clearances.
IMPORTANT: If you cannot meet these minimum
clearances, you must operate heater with chimney
ue damper open. Go to Installing Damper Clamp
Accessory for Vented Operation, page 11.
MANTEL CLEARANCES
In addition to meeting noncombustible material
clearances, you must also meet required clearances
between replace opening and mantel shelf. If
you do not meet the clearances listed below, you
will need a hood.
If you meet minimum clearance between mantel
shelf and top of replace opening, a hood is not
required (see Figure 6).
INSTALLATION
Continued
If minimum clearances in Figure 6 are not met, you
must have a hood. When using a hood there are
still certain minimum mantel clearances required.
Follow minimum clearances shown in Figure 7
when using a hood.
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Follow all minimum clearances
NOTICE: If your installation does
not meet the minimum clear-
ances shown, you must do one
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• remove the mantel
Figure 6 - Minimum Mantel Clearances
Without Using Hood
Figure 7 - Minimum Mantel Clearances
When Using Hood
Minimum
Noncombustible
Material 8"
Min.
12" 15" 18"
All minimum
distances are
in inches
20"
2 1/2"
6"
8"
10"
12"
Distances to
Underside of
Mantel
Hood (GA6050,
GA6052 and
GA6053)
Top of Fireplace
Opening
Underside of
Mantel Shelf
Mantel Shelf
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INSTALLATION
Continued
14"
Min.
Combustible
Material
Noncombustible Material
Hearth
5"
Min.
Combustible
Material
Figure 9 - Minimum Fireplace Clearances
Above Combustible Flooring
Figure 8 - Minimum Fireplace Clearances
If Installed at Floor Level
FLOOR CLEARANCES
A. If installing appliance on the oor level, you
must maintain the minimum distance of 14"
to combustibles (see Figure 8).
B. If combustible materials are less than 14" to
the replace, you must install appliance at
least 5" above the combustible ooring (see
Figure 9).
Diameter Area
5" 20 sq. inches
6" 29 sq. inches
7" 39 sq. inches
8" 51 sq. inches
Chimney
Minimum permanent
6' to 15' 39 sq. inches
15' to 30' 29 sq. inches
INSTALLING DAMpER CLAMp
OpERATION
Note: When used as a vented heater, appliance
must be installed only in a solid-fuel burning
replace with a working ue and constructed of
noncombustible material.
You may use this heater as a vented product. There
are three reasons for operating your heater in the
vented mode.
1. The replace does not meet the clearance
to combustibles requirements for vent-free
operation.
2. State or local codes do not permit vent-free
operation.
3. You prefer vented operation.
If reasons number 1 or 2 apply to you, you must
permanently open chimney ue damper. You must
install the damper clamp accessory (to order, see
Accessories, page 25). This will insure vented
operation (see Figure 10). The damper clamp will
keep damper open. Installation instructions are
included with clamp accessory.
See chart below for minimum permanent ue
opening you must provide. Attach damper clamp
so the minimum permanent ue opening will be
maintained at all times.
Figure 10 - Attaching Damper Clamp
Manufactured
Damper
Damper
Clamp
Damper
Damper
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INSTALLATION
Continued
CAUTION: Do not remove the
WARNING: You must secure
not, heater will move when you
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IMPORTANT: Make sure the heater burners are
level. If heater is not level, heater will not work
properly.
Installation Items Needed
• hardware package (provided with heater)
• approved exible gas hose (not provided) (if
allowed by local codes)
•
sealant (resistant to propane/LP gas, not provided)
• electric drill with 3/16" drill bit
• athead screwdriver
1. Apply pipe joint sealant lightly to male threads
of the tting to be threaded into gas regulator.
Connect approved exible gas hose to gas
regulator of heater (see Figure 11).
IMPORTANT: Hold gas regulator with
wrench when connecting exible gas hose.
2. Locate masonry screws in hardware package.
3. Position heater base assembly in replace.
4. Place log in its proper position on heater base
(see Installing Log, page 15).
5. Center heater base and logs front-to-front and
side-to-side in replace.
6. Carefully remove log without moving heater
base.
7. Mark screw locations through holes in mount-
ing brackets (see Figure 12). If installing in a
brick-bottom replace, mark screw locations
in mortar joint of bricks.
8. Remove heater base from replace.
9. Drill holes at marked locations using 3/16"
drill bit.
10. Attach base assembly to replace oor using
two masonry screws (in hardware package)
(see Figure 12).
Figure 12 - Attaching Base Assembly to
Fireplace Floor
Heater Gas
Regulator
Flexible Gas Hose
(if allowed by local codes)
Figure 11 - Attaching Flexible Gas Hose
to Heater Gas Regulator
Fitting
Masonry
Screw
Mounting
Bracket
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INSTALLATION
Continued
CONNECTING TO GAS SUppLY
CAUTION: Never connect
-
units, never connect heater to
Installation Items Needed
Before installing heater, make sure you have the
items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certied equipment shutoff valve
with 1/8" NPT tap is an acceptable alternative to
test gauge connection. Purchase the optional CSA
design-certied equipment shutoff valve from your
dealer. See Accessories, page 25.
For propane/LP gas, the installer must supply an
external regulator. The external regulator will
reduce incoming gas pressure. You must reduce
incoming gas pressure to between 11" and 14" of
water. If you do not reduce incoming gas pres-
sure, heater regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 13. Pointing the vent down
protects it from freezing rain or sleet.
Installation must include a 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 heater (see Figure 14, page 14).
IMPORTANT: Install equipment shutoff valve in an
accessible location. The main gas valve is for turn-
ing on or shutting off the gas to the appliance.
Check your building codes for any special re-
quirements for locating equipment shutoff valve
to replaces.
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from
going into pipe. Excess sealant in pipe could result
in clogged heater valves.
Figure 13 - External Regulator With Vent
Pointing Down
Propane/LP
Supply Tank
External
Regulator
with Vent
Pointing
Down
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INSTALLATION
Continued
Figure 14 - Gas Connection
* Purchase the optional CSA design-certied
equipment shutoff valve from your dealer. See
Accessories, page 25.
** Min. inlet pressure for purpose of input adjustment.
Tee Cap Pipe
Joint Nipple
3" Min.
Sediment Trap
Gas
Regulator
CSA Design-Certied
Equipment Shutoff Valve
With 1/8" NPT Tap*
Approved
Flexible
Gas Hose (if
allowed by
local codes)
Natural
From Gas Meter
(5" W.C.** to
10.5" W.C.
Pressure)
From External
Regulator
(11" W.C.**
to 14" W.C.
Pressure
CHECKING GAS CONNECTIONS
and connections, internal and
external to unit, for leaks after
WARNING: Never use an
-
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Connecting
to Gas Supply
pRESSURE TESTING GAS SUppLY
pIpING SYSTEM
Test pressures In Excess Of 1/2 pSIG
1. Disconnect appliance with its appliance main
gas valve (control valve) and equipment shutoff
valve from gas supply piping. Pressures in ex-
cess of 1/2 psig will damage heater regulator.
2. Cap off open end of gas pipe where equipment
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 system.
Apply a commercial leak detection solution
to all 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 Figure 15).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve
located on or near gas meter for natural gas
or using compressed air.
3. Check all joints from gas meter (natural gas)
or propane/LP supply to equipment shutoff
valve (see Figure 16 or 17, page 15). Apply
a commercial leak detection solution to all
joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Figure 15 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff Valve
We recommend that you install sediment trap in
supply line as shown in Figure 14. Locate sediment
trap where it is within reach for cleaning. Install
in piping system between fuel supply and heater.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into
heater controls. If sediment trap is not installed or is
installed wrong, heater may not run properly.
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119347-01A 15
INSTALLATION
Continued
Equipment Shutoff Valve
Propane/LP
Supply Tank
Control Valve
Location
Figure 17 - Checking Gas Joints
(Natural Gas Only)
Gas
Meter
Equipment Shutoff Valve
Control Valve Location
Figure 16 - Checking Gas Joints
(Propane/LP Gas Only)
Connections
1. Open equipment shutoff valve (see Figure 15,
page 14).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP
supply tank valve.
3. Make sure control knob of heater is in the
OFF position.
4. Check all joints from gas meter (natural gas) or
propane/LP supply to equipment shutoff valve
(see Figure 16 or 17). Apply a commercial
leak detection solution to all joints. Bubbles
forming show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, page 16).
Check all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appli-
ance, page 17).
INSTALLING LOG
CAUTION: After installa-
-
It is very important to install this log exactly as
instructed. Do not modify log. Only use log sup-
plied with heater.
1. Place one piece log over burner so that the
back sits on back tabs and front rests on grate
ngers (see Figure 18).
2. Add lava rock around base of heater if desired.
Do not place lava rock on log or burner.
Figure 18 - Installing One Piece Log
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www.desatech.com 119347-01A16
OPERATING HEATER
FOR YOUR SAFETY
WARNING: If you do not fol-
low these instructions exactly,
-
A. This appliance has a pilot which must be
lighted by hand. When lighting the pilot,
follow these instructions exactly.
B. BEFORE LIGHTING smell all around the
appliance area for gas. Be sure to smell next
to the oor because some gas is heavier than
air and will settle on the oor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not
use any phone in your building.
• Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier, call
the re department.
C. Use only your hand to push in or turn the
gas control knob. Never use tools. If the
knob will not push in or turn by hand, don’t
try to repair it, call a qualied service tech-
nician or gas supplier. Force or attempted
repair may result in a re or explosion.
D.
Do not use this appliance if any part has been
under water. Immediately call a qualied
service technician to inspect the appliance and
to replace any part of the control system and
any gas control which has been under water.
LIGHTING
INSTRUCTIONS
WARNING:
-
erate heater with doors closed,
-
-
Note: Home owners generally prefer to op-
erate their heater with the chimney damper
closed. This will put all the heat into the room.
However, there may be times you will desire
the full ames of the HI heat setting but will
nd the heat output excessive. You can open
the chimney damper (if you have one) fully or
partially to release some of the heat.
1. STOP! Read the safety information in col-
umn 1.
2. Make sure equipment shutoff valve is
fully open.
3. Press in and 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.
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www.desatech.com
119347-01A 17
5. Slightly depress and turn control knob
counterclockwise to the PILOT
position. Press in control knob for ve (5)
seconds (see Figure 19).
Note: You may be running this heater for
the rst time after hooking up to gas sup-
ply. 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.
6. With control knob pressed in, press and
release ignitor button. This will light pi-
lot. The pilot is attached to the burner. If
needed, keep pressing ignitor button until
pilot lights.
Note: If pilot does not stay lit, 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 18.
7. Keep control knob pressed in for 30 seconds
after lighting pilot.After 30 seconds, release
control knob.
Note: If pilot goes out, repeat steps 3
through 7.
• If control knob does not pop out when
released, contact a qualied service person
or gas supplier for repairs.
8. Slightly depress and turn control knob coun-
terclockwise to desired heating level.
The burner should light. Set control knob
to any heat level between HI and LO.
Figure 19 - Control Knob and Ignitor
Button Location
PILOT
OFF
LO
HI
Ignitor Button Control Knob
Figure 20 - Pilot
Thermocouple
Ignitor
Electrode Pilot Burner
OpERATION
The variable control valve can be set to any
heat setting and ame height desired, by simply
turning the control knob until that setting is
attained. Even the lowest setting provides re-
alistic, dancing yellow ames. Selecting higher
settings produces greater heat output. This
results in increased heating comfort.
CAUTION: Do not try to ad-
TO TURN OFF GAS
TO AppLIANCE
1. Press in and turn control knob clockwise
to the HI position.
2. Turn control knob clockwise to the
pilot position.
3. Press in control knob and turn clockwise
to the OFF position.
1. Turn control knob clockwise to the
HI position.
2. Press in and turn control knob clockwise
to the pilot position.
Natural Gas
Thermocouple
Ignitor Electrode Pilot Burner
OPERATING HEATER
Continued
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www.desatech.com 119347-01A18
OPERATING HEATER
Continued
MANUAL LIGHTING
pROCEDURE
1. Follow steps 1 through 5 under Lighting
Instructions, page 16.
2. Depress control knob and light pilot
with match.
3. Keep control knob pressed in for 30 seconds
after lighting pilot.After 30 seconds, release
control knob. Now follow step 8 under
Lighting Instructions, page 16.
INSPECTING BURNERS
Check pilot ame pattern and burner ame pat-
terns often.
pILOT FLAME pATTERN
Figure 21 shows a correct pilot ame pattern.
Figure 22 shows an incorrect pilot ame pat-
tern. The incorrect pilot ame is not touching the
thermocouple. This will cause the thermocouple to
cool. When the thermocouple cools, the heater will
shut down.
If pilot ame pattern is incorrect, as shown in
Figure 22
• turn heater off (see To Turn Off Gas to Appli-
ance, page 17)
• see Troubleshooting, page 20
Note: The pilot ame on natural gas units will
have a slight curve, but ame should be blue and
have no yellow or orange color.
Figure 21 - Correct Pilot Flame Pattern
Figure 22 - Incorrect Pilot Flame Pattern
Pilot Burner
Thermocouple
Pilot Burner
Natural Gas
Pilot Burner Pilot Burner
Thermocouple
Natural Gas
Air is drawn into the burner through the holes in
the tting at the entrance to the burner. These holes
may become blocked with dust or lint. Periodically
inspect these holes for any blockage and clean as
necessary. Blocked air holes will create soot.
Periodically inspect all burner ame holes with the
heater running. All slotted burner ame holes should
be open with yellow ame present. All round burner
ame holes should be open with a small blue ame
present. Some burner ame holes may become
blocked by debris or rust, with no ame present. If
so, turn off heater and let cool. Remove blockage,
blocked burner ame holes will create soot.
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
-
-
Use a vacuum cleaner or small, soft bristled brush
to clean.
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119347-01A 19
pILOT AIR INLET HOLE
The primary air inlet holes allow the proper
amount of air to mix with the gas. This provides
a clean burning ame. Keep these holes clear
of dust, dirt and lint. Clean these air inlet holes
prior to each heating season. Blocked air holes
will create soot. We recommend that you clean
the unit every three months during operation
and have heater inspected yearly by a qualied
service person.
We also recommend that you keep the burner
tube and pilot assembly clean and free of dust and
dirt. To clean these parts we recommend using
compressed air no greater than 30 PSI. Your local
computer store, hardware store or home center
may carry compressed air in a can. If using com-
pressed air in a can, please follow the directions
on the can. If you don’t follow directions on the
can, you could damage the pilot assembly.
1. Shut off the unit, including the pilot. Allow
the unit to cool for at least thirty minutes.
2. Inspect burner, pilot and primary air inlet
holes on injector holder for dust and dirt (see
Figure 24).
3. Blow air through the ports/slots and holes in
the burner.
4. Check the injector holder located at the end
of the burner tube again. Remove any large
particles of dust, dirt, lint or pet hair with a
soft cloth or vacuum cleaner nozzle.
5. Blow air into the primary air holes on the
injector holder.
6. In case any large clumps of dust have now been
pushed into the burner repeat steps 3 and 4.
Clean the pilot assembly also. A yellow tip on the
pilot ame indicates dust and dirt in the pilot as-
sembly. There is a small pilot air inlet hole about
2" from where the pilot ame comes out of the
pilot assembly (see Figure 24). With the unit off,
lightly blow air through the air inlet hole. You may
blow through a drinking straw if compressed air
is not available.
Figure 23 - Injector Holder On Outlet
Burner Tube
Burner Tube
Primary Air Inlet
Holes (Shape of
Holes May Vary by Model)
Injector Holder (May
Be Brass or Aluminum
Depending on Model)
Figure 24 - Pilot Inlet Air Hole
Burner
Tube
Ports/Slots
Pilot
Assembly
Pilot Air
Inlet Hole
LOG
• If you remove log for cleaning, refer to Install-
ing Log, page 16, to properly replace logs.
• Replace log(s) if broken or chipped (dime-sized
or larger).
Air is drawn into the burner through the 8 holes
in the brass tting at the entrance to the burner.
These holes may become blocked with dust or lint.
Periodically inspect these holes for any blockage
and clean as necessary. Blocked air holes will
create soot.
Periodically inspect all burner ame holes with
the heater running. All slotted burner ame holes
should be open with yellow ame present. All
round burner ame holes should be open with a
small blue ame present. Some burner ame holes
may become blocked by debris or rust, with no
ame present. If so, turn off heater and let cool.
Remove blockage, blocked burner ame holes
will create soot.
CLEANING AND
MAINTENANCE
Continued
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www.desatech.com 119347-01A20
TROUBLESHOOTING
Note: All troubleshooting items are listed in order of operation.
1. Ignitor electrode not con-
nected to ignitor cable
2. Ignitor cable pinched or wet
3. Piezo ignitor nut is loose
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned
wrong
1. Gas supply turned off or equip-
ment shutoff valve closed
2. Control knob not in PILOT
position
3. Control knob not pressed in
while in PILOT position
4. Air in gas lines when in-
stalled
5. Depleted gas supply (propane/
LP only)
6. ODS/pilot is clogged
7. Gas regulator setting is not
correct
When ignitor button is pressed,
there is no spark at ODS/pilot
When ignitor button is pressed,
there is spark at ODS/pilot but
no ignition
REMEDY
1. Reconnect ignitor cable
2. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry
3.
Tighten nut holding piezo ig-
nitor to base panel of log set. Nut
is located behind base panel
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace pilot assembly
7. Replace pilot assembly
1. Turn on gas supply or open
equipment shutoff valve
2. Turn control knob to PILOT
position
3. Press in control knob while in
PILOT position
4. Continue holding down con-
trol knob. Repeat igniting op-
eration until air is removed
5. Contact local propane/LP gas
company
6. Clean ODS/pilot (see Cleaning
and Maintenance, page 18) or
replace ODS/pilot assembly
7. Replace gas regulator
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1
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