Desa SBJ24VNA, SBJ24VPA, SBJ18VPA, SMA24VNA, SMA24VPA User Manual

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UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
ANSI Z21.11.2a-2003
ANSI Z21.60-2003
SBJ24VNA, SBJ24VPA SBJ18VNA, SBJ18VPA
Vent-free Models Also Design-Certified
As Vented Decorative Appliances
APPROVED
SMA24VNA, SMA24VPA SMA18VNA, SMA18VPA
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.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
— Installation and service must be performed by a quali-
fied installer, service agency or the gas supplier.
Save this manual for future reference.
For more information, visit www.desatech.com
WARNING: Improper installation, adjustment, altera­tion, service or maintenance can cause injury or prop­erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi­tional information consult a qualified installer, service agency or the gas supplier.
WARNING: This appliance is for installation only in a solid-fuel burning masonry or UL127 factory-built fireplace or in a listed ventless firebox enclosure. It is design-certified for these installations in accordance with ANSI Z21.11.2. Exception: Do not install this appli­ance in a factory-built fireplace that includes instruc­tions stating it has not been tested or should not be used with unvented gas logs.
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provi­sions for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation section on page 6 of this manual.
This appliance may be installed in an aftermarket,* per­manently located, manufactured (mobile) home, where not prohibited by local codes.
This appliance is only for use with the type of gas indi­cated on the rating plate. This appliance is not convert­ible for use with other gases.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
TABLE OF CONTENTS
Safety Information ............................................... 3
Product Identification ...........................................
Local Codes ........................................................ 5
Unpacking ........................................................... 5
Optional Remote Control Accessories .................
Product Features ................................................. 5
Air For Combustion and Ventilation .....................
Installation ........................................................... 8
Operating Heater ............................................... 16
Inspecting Burner .............................................. 20
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Wiring Diagram .................................................. 20
5
Cleaning and Maintenance ................................ 21
Troubleshooting .................................................
Specifications ....................................................
5
Replacement Parts ............................................ 26
Service Hints ..................................................... 26
Technical Servi
6
Accessories ....................................................... 27
Illustrated Parts Breakdown and Parts List ....... 28
Warranty Information ...........................
ce .............................................. 26
Back Cover
114744-01B
22 26

SAFETY INFORMATION

IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, op­erate or service this log set. Improper use of this log set can cause serious injury or death from burns, fire, explosion, electrical shock and carbon monoxide poisoning.
WARNING: Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner flame patterns. Ceiling fans can create drafts that alter burner flame patterns. Altered burner patterns can cause sooting.
WARNING: Do not place log scraps or lava rocks on burner
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxi de Poisoning : Early signs of
carbon monoxide poisoning resemble the flu, with headaches, dizziness or nausea. If you have these signs, the log set may not be working properly. Get fresh air at once! Have log set 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 & Propane/LP Gas: Natural & Propane/LP
gas 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 log set.
WARNING: Any change to this log set or its controls can be dangerous.
WARNING: Do not use a blow­er insert, heat exchanger insert or other accessory not approved for use with this appliance.
WARNING: This appliance is equipped with (natural or pro­pane/LP) gas. Field conversion is not permitted.
Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies.
Do not place clothing or other flammable material on or near the appliance. Never place any objects on the heater.
Heater assembly becomes very hot when running heater. Keep children and adults away from hot surface to avoid burns or clothing ignition. Heater will remain hot for a time after shut­down. Allow surface to cool before touching.
Carefully supervise young chil­dren when they are in the room with appliance. When using the hand-held remote accessory, keep selector switch in the OFF position to prevent children from turning on burner with remote.
You must operate this heater with a fireplace screen in place. Make sure fireplace screen is closed before running heater.
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SAFETY INFORMATION
Continued
Keep the appliance area clear and free from combustible ma­terials, gasoline and other flam mable vapors and liquids.
Solid fuels shall not be burned in a fireplace in which an unvented room heater installed.
Children and adults should be alerted to the hazard of high tem­perature and should stay away to avoid burns or clothing ignition.
1. This appliance, as supplied, 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 the structure.Locate propane/LP supply tank(s) outdoors (propane/LP units only).
3. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not use
any phone in your building
• immediately call your gas supplier from a
neighborʼs phone. Follow the gas supplierʼs instructions
• if you cannot reach your gas supplier, call
the fire department
4. This 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 12.
5. Before installing in a solid fuel burning fireplace, the chimney flue and firebox must be cleaned of soot, creosote, ashes and loose paint by a qualified chimney cleaner. Creosote will ignite if highly heated. Inspect chimney flue for damage. If dam aged, repair flue before operating appliance.
6. If fireplace has glass doors, never operate with glass doors closed, If you operate heater with doors closed, heat buildup inside fireplace will cause glass to burst. Also if fireplace opening has vents at the bottom, you must open the vents before operating heater.
7. To prevent the creation of soot, follow the instruc tions in Cleaning and Maintenance, page 21.
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8. Before using furniture polish, wax, carpet cleaner or similar products, turn heater off. If heated, the vapors from these products may create a white powder residue within the burner box or on adjacent walls and furniture.
9. 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 enough fresh air is not available. See Air Combustion and Ventilation page 6. If the heater keeps shutting off, see Troubleshooting, page 22.
10. Do not run heater
• where flammable liquids or vapors are used
or stored
• under dusty conditions
11. Do not use heater to cook food or burn paper or other objects.
12. Do not use heater if any part has been exposed to or under water. Immediately call a qualified 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.
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13. Do not operate heater if any log is broken. Do not operate heater if a log is chipped (dime­size or larger).
14. Turn heater off and let cool before servicing, installing or repairing. Make sure the selector switch is in the OFF position. Only a quali fied service person should install, service or repair heater.
15. Make sure the selector switch is in the OFF position when you are away from home for long periods of time.
16. Remote-ready heaters shall not be connected to any external electrical source.
17. Operating heater above elevations of 4,500
­feet may cause pilot outage.
18. To prevent performance problems, do not use propane/LP tank(s) of less than 100 lb. capac ity (propane/LP units only).
19. Prov ide adeq ua te clearan ce s around air openings.
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WARNING: Failure to posi­tion the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury.
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114744-01B
PRODUCT
IDENTIFICATION
Log Set
Piezo Ignitor
Control Knob
Figure 1 - Product Identification
Flame Adjustment Knob
Chassis Assembly

LOCAL CODES

Install and use the heater 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.
National Fire Protection Association, Inc.
Note: Where listed vented decorative logs are required, thermostat operations is not permitted. The installation of appliances designed for manu factured home (U.S. only) or mobile home instal lation must conform with the Standard CAN/CSA Z240 MH, Standard, Title 24 CFR, Part 3280, in the United States or when such a Standard is not applicable, ANSI/NCSBCS A225.1/NFPA 501A Manufactured Home Installations Standard.
State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the Commonwealth of Mas­sachusetts.
Sel lers of unvented propane or natural gas-fired supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit.
Vent-free gas products are prohibited for bedroom and bathroom installation in the Commonwealth of Massachusetts.
1430 Broadway
New York, NY 10018
Battery march park Quincy, MA 02269

UNPACKING

CAUTION: Do not remove the data plates from the grate as­sembly. The data plates contain important warranty and safety information.
1. Remo ve log set asse mbly from car ton .
Note: Do not pick up assembly by logs. This could damage the unit. Always handle assembly by grate.
2. Remove all protective packaging applied to log set for shipment.
3. Check all items for any shipping damage. If damaged, promptly inform dealer where you bought appliance.
OPTIONAL REMOTE
CONTROL ACCESSORIES
There are four optional remote controls that can be purchased separately:
Wall switch Hand-held ON/OFF remote
Wall thermostat Hand-held thermostat remote
See Accessories, page 27
The wall thermostat or hand-held thermostat may not be used where vented decorative listings is required.

PRODUCT FEATURES

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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 both realistic flames and glowing coals. This heater is designed for vent-free operation with flue 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. This heater may also be operated as a vented decorative (ANSI Z21.60) product by opening the flue damper.
SAFETY DEVICE
This heater has a pilot with an Oxygen Deple­tion Sensing (ODS) safety shut off 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 re­quires no matches, batteries or other sources to light heater.
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AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall not be installed in 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.
Todayʼs homes are built more energy efficient than ever. New materials, increased insulation and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as possible.
While it is good to make your home energy effi cient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper combustion and ventilation.
Exhaust fans, fireplaces, clothes dryers and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances.
PROVIDING ADEQUATE VENTILATION
The following are excerpts from National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation
All spaces in homes fall into one of the three fol lowing ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 6 through 8 will help you classify your space and provide adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.
.
Unusually tight construction is defined as construction where: a. Walls and ceilings exposed to the out-
side atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10-11 kg per pa-sec-m2) or less with openings gasketed or sealed and
b. weather stripping has been added on
openable windows and doors
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 ad ditional fresh air. See Ventilation Air From Outdoors, page 6.
If your home does not meet all of the three criteria above, proceed to Determining
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Fresh-Air Flow For Appliance Location
Confined and Unconfined Space
The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defines a confined space as a space whose vol
ume 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.
* Adjoining rooms are communicating only if
­there are odorless passageways or ventilation grills
between them.
DETERMINING FRESH-AIR FLOW FOR APPLIANCE 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 appliance plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.
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114744-01B
AIR FOR COMBUSTION
AND VENTILATION
Continued
1. Determine the volume of the space (length x width x height).
Length x Width x Height = ________
(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 sup plied 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.
_____ _____ __(vo lume of space) x 20 =
(Maximum 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 appliance
Gas water appliance*
Gas furnace
Vented gas appliance
Gas fireplace logs
Other gas appliances* +
Total =
* Do not include direct-vent gas appliances.
Direct-vent draws combustion air from the outdoors and vents to the outdoors.
Example:
Gas water appliance
Vent-free appliance +
Total =
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
___________ Btu/Hr (maximum the space
can support)
____________Btu/Hr (actual amount of
Btu/Hr used) Example: 51,200 Btu/Hr ( maximum the
space can support)
73,000 Btu/Hr (actual amount of Btu/Hr used)
_________Btu/Hr
_________Btu/Hr
_________Btu/Hr
_________Btu/Hr
_________Btu/Hr
_________Btu/Hr
_________Btu/Hr
40,000
_________Btu/Hr
33,000
_________Btu/Hr
73,000
_________Btu/Hr
cu. ft.
The space in the previous 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 worksheet, adding the space of an
adjoining room. If the extra space provides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From Inside Building.
B. Vent room directly to the outdoors. See Ven
tilation Air From Outdoors,
­C. Install a lower Btu/Hr appliance, 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.
page 8.
WARNING: If the area in which the appliance 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 National Fuel Gas Code, ANSI Z223.1/NFPA 54 Section 5.3 or applicable local codes.
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 2 on page 8). 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 re-
quired size of ventilation grills or ducts.
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AIR FOR COMBUSTION
Outlet Air
Ventilated Attic
Outlet
A
ir
Inlet Air
Inlet Air
Ve
ntilated
Crawl Space
To
Crawl
Space
To Attic
Or
Remove Door into Adjoining
Room, Option
3
Ventilation Grills
Into Adjoining Room,
Option
2
Ve
ntilation Grills
Into Adjoining
Room,
Option 1
12"
12"
AND VENTILATION
Continued

INSTALLATION

NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your primary heating 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 event of a power out­age, you can use this heater as your primary heat source.
Figure 2 - Ventilation Air from Inside
Building
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the
National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts. IMPORTANT: Do not provide openings for inlet
or outlet air into attic if attic has a thermostat­controlled power vent. Heated air entering the attic will activate the power vent.
Figure 3 - Ventilation Air from Outdoors
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WARNING: A qualified ser­vice person must install heater. Follow all local codes.
NOTICE: State or local codes may only allow operation of this appli­ance in a vented configuration. Check your state or local codes.
WARNING: Make sure the selector switch is in the OFF po­sition before installing heater.
WARNING: Before installing in a solid fuel burning fireplace, the chimney flue and firebox must be cleaned of soot, creo­sote, ashes and loose paint by a qualified chimney cleaner. Creo
­sote will ignite if highly heated. A dirty chimney flue may create and distribute soot within the house. Inspect chimney flue for damage. If damaged, repair flue damper before operating appliance.
114744-01B
INSTALLATION
Continued
WARNING: Seal any fresh air vents or ash clean-out doors located on floor or wall of fire­place. If not, drafting may cause pilot outage or sooting. Use a heat-resistant sealant. Do not seal chimney flue damper.
WARNING: Never install the heater
• in a bedroom or bathroom
unless installed as a vented appliance, see page 12
• in a recreational vehicle
• where curtains, furniture,
clothing or other flammable objects are less than 42 inches from the front, top or sides of heater
• in high traffic areas
• in windy or drafty areas
CAUTION: This heater cre­ates warm air currents. These currents move heat to wall sur faces next to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such as, but not limited to, tobacco smoke, aromatic candles, cleaning flu­ids, oil or kerosene lamps, etc..) in the air exist, may discolor walls or cause odors.
IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial, installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture. See Air
for Combustion and Ventilation
CHECK GAS TYPE
Use the correct gas type (natural or propane/LP) for your unit. If your gas supply is not correct, do not install in fireplace. Call dealer where you bought the appliance for proper type of appliance.
, page 6.
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WARNING: This appliance is equipped for (natural or pro­pane/LP) gas. Field conversion is not permitted.
INSTALLATION AND CLEARANCES FOR VENT-FREE OPERATION
WARNING: Maintain the minimum clearances. If you can, provide greater clearances from floor, ceiling and adjoining wall.
MINIMUM FIREPLACE CLEARANCE
TO COMBUSTIBLE MATERIALS
LOG SIZE 18", 24"
SIDE WALL 16"
CEILING 42"
FLOOR 5"
LOG SIZING REQUIREMENTS
MINIMUM FIREBOX SIZE LOG FRONT REAR
SIZE HEIGHT DEPTH WIDTH WIDTH
18" 17" 14" 24" 20" 24" 17" 14" 28" 22"
*Measured at 14" depth
Allow adequate clearances for accessibility for purposes of servicing and proper operation
Carefully follow the instructions below. This will ensure safe installation into masonry, UL127-listed manufactured fireplace or listed vent-free firebox.
Minimum Clearances For Side Combustible Material, Side Wall and Ceiling
A. Clearances from the side of the fireplace
cabinet to any combustible material and wall should follow diagram in Figure 4, page 10.
Example: The face of a mantel, bookshelf,
etc.. is made of combustible material must be 4" from the side of the fireplace to the cabinet (see Figure 4, page 10).
B. Clearances from the top of the fireplace open
ing to the ceiling should not be less than 42 inches.
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INSTALLATION
Heat Resistant Material
(A)
Continued
Example
*Minimum 16 inches from Side Wall
Figure 4 - Minimum Clearance for
Combustible to Wall
NOTICE: Non thermostat con­trolled heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open and damper clamp installed. If running heater with damper open, noncombus­tible material above the fireplace opening is not needed. Go to
Installing Damper Clamp Ac­cessory for Vented Operation,
page 12.
Noncombustible Re q u i r emen t s for Material Distance (A) Safe Installation
12" or more N o n c o m b u s t i b l e material OK.
Between 8" and 12" 24" Models: Install fireplace hood
accessory (GA6050, GA6052, GA6053, see Accessories, page 27).
18" Model: Noncom­ bustible material OK.
*
Less than 8" Noncombustible m a t e ri a l m u st be
extended to at least 8". See Between 8" and 12 " , above . If yo u cannot extend material, yo u m u s t op er a t e heater with flue damper op e n a n d da mp e r clamp installed
Minimum Noncombustible Material Clearances
If Not Using Mantel
Note: If using a mantel proceed to If Using Man- tel. If not using mantel, follow the information
on this page.
You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc..) Must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombus tible material must extend at least 8" up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" Models Only). See Figure 5 for minimum clearances.
10
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
If Using Mantel
You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible
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material behind it. Noncombustible material must extend at least 8 inches up (for all models). If noncom­bustible material is less than 12", you must install the fireplace hood accessory (24" Models Only). Even if noncombustible material is more than 12", you may need the hood accessory to deflect heat away from your mantel shelf. See Figure 5 and Figures 6 and 7, page 11, for minimum clearances.
IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Damper Clamp
Accessory for Vented Operation
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, page 12.
114744-01B
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