Desa VRL30PT, VRL30NT, VRL24PT, CSG3924NT, CTB3924PT User Manual

...
0 (0)
TM
UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
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24" and 30"Remote-Ready Models: VRL24NR, VRL24PR, VRL30NR, VRL30PR, CSG3924NR, CSG3924PR CTB3924NR, CTB3924PR
24" and 30" Thermostat Models: VRL24NT, VRL24PT, VRL30NT, VRL30PT, CSG3924NT, CSG3924PT CTB3924NT, CTB3924PT
Remote-Ready Models Also Design-Certified As Vented
Decorative Appliances
WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, per­sonal injury, or loss of life.
— Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
— Installation and service must be performed
by a qualified installer, service agency, or the gas supplier.
WARNING: Improper installation, adjust­ment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or additional information consult a qualified installer, service agency, or the gas supplier.
WARNING: This appliance is for installa­tion only in a solid-fuel burning masonry or UL127 factory-built fireplace, or in an ap­proved ventless firebox. 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. For unmarked fac­tory-built fireplaces, contact fireplace manu­facturer if unsure of this application.
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. Refer to
Air for Combustion and Ventilation
section on page 5 of this manual.
This appliance may be installed in an aftermarket,* permanently located, manufactured (mobile) home, where not prohibited by local codes.
This appliance is only for use with the type of gas 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
Save this manual for future reference.
Save this manual for future reference.
TABLE OF CONTENTS SAFETY INFORMATION
2
TABLE OF CONTENTS
SAFETY INFORMA TION ............................................................ 2
PRODUCT IDENTIFICATION ..................................................... 4
OPTIONAL REMOTE CONTROL ACCESSORIES .................... 4
LOCAL CODES........................................................................... 4
UNPACKING............................................................................... 4
PRODUCT FEATURES .............................................................. 5
AIR FOR COMBUSTION AND VENTILATION ........................... 5
INSTALLATION ........................................................................... 8
OPERATING HEATER.............................................................. 17
INSPECTING BURNERS.......................................................... 22
CLEANING AND MAINTENANCE ............................................ 23

SAFETY INFORMATION

WARNINGS
IMPORTANT: Read this owners manual carefully and completely before trying to assemble, operate, or ser­vice this heater. Improper use of this heater can cause property damage and serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.
DANGER: Carbon monoxide poisoning may lead
to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide
poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.
Natural and Propane/LP Gas: Natural and 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 heater.
WARNING: Any change to this heater or its con-
trols can be dangerous.
TROUBLESHOOTING .............................................................. 24
OPTIONAL POSITIONING OF
THERMOSTAT SENSING BULB ......................................... 27
SPECIFICATIONS .................................................................... 28
WIRING DIAGRAM ................................................................... 28
SERVICE HINTS....................................................................... 28
TECHNICAL SERVICE ............................................................. 28
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST ....... 29
REPLACEMENT PARTS .......................................................... 34
ACCESSORIES ........................................................................ 34
OWNER’S REGISTRATION FORM.......................................... 35
WARNING: Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner flame patterns. Ceiling fans can create drafts that alter burner flame patterns. Altered burner patterns can cause sooting.
Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies.
Do not place clothing or other flammable material on or near the appliance. Never place any objects on the heater.
Heater base 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 heater. When using the hand-held remote accessory (Remote-Ready Models Only), keep selector switch in the OFF position to prevent chil­dren from turning on burners with remote.
WARNING: Do not use a blower insert, heat exchanger insert, or other accessory not approved for use with this heater.
WARNING: This appliance is for installation only in a solid-fuel burning fireplace or approved ventless firebox enclosure.
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You must operate this heater with a fireplace screen in place. Make sure fireplace screen is closed before running heater.
Keep the appliance area clear and free from combus­tible materials, gasoline, and other flammable vapors and liquids.
110021-01A
SAFETY INFORMATION
Continued
1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.
2. Do not place propane/LP supply tank(s) inside any structure. Locate propane/LP supply tank(s) outdoors.
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 supplier’s 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 appliance. See Installing Damper Clamp Accessory for Vented Operation, page 11 (Remote­Ready Models Only).
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 dam­aged, repair flue damper before operating heater.
6. If fireplace has glass doors, never operate this heater 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 instructions in Clean- ing and Maintenance, page 23.
8. Before using furniture polish, wax, carpet cleaner, or similar products, turn heater off. If heated, the vapors from these prod­ucts may create a white powder residue within burner box or on adjacent walls and furniture.
SAFETY INFORMATION
9. This heater needs fresh, outside air ventilation to run properly . This heater has an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS shuts down the heater if enough fresh air is not available. See Air for Combustion and Ventilation, pages 5 through 7. If heater keeps shutting off, see Trouble- shooting, pages 24 through 26.
10. Do not run heater
• where flammable liquids or vapors are used or stored
• under dusty conditions
11. Do not use this heater to cook food or burn paper or any other type of sold fuels.
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.
13. Do not operate heater if any log is broken. Do not operate heater if a log is chipped (dime-sized or larger).
14. Turn heater off and let cool before servicing, installing, or re­pairing. Make sure the selector switch is in the OFF position (Remote-Ready Models Only). Only a qualified 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 (Remote-Ready Models Only).
16. Remote-ready heaters do not need to 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 with propane/LP models, do not use propane/LP fuel tank of less than 100 lb. capacity.
19. Provide adequate clearances around air openings.
3
3
110021-01A
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UT
ON
OFF
COOLER
W ARMER
TEMP
PRODUCT IDENTIFICATION OPTIONAL REMOTE CONTROL ACCESSORIES
4
LOCAL CODES UNPACKING

PRODUCT IDENTIFICATION

Log Set (Varies According to Model)
Grate
Piezo Ignitor
Burner Control Knob
Front and Rear Burner Control Knob
Thermostat Models: CSG3924NT, CSG3924PT, CTB3924NT, CTB3924PT, VRL24NT, VRL24PT, VRL30NT, VRL30PT
Base Extension
Selector
Grate
Switch
(30" Models Only)
Pilot Assembly
(Optional)
Base Assembly
Rear Burner

OPTIONAL REMOTE CONTROL ACCESSORIES

There are four optional remote controls that can be purchased separately for Remote-Ready Models Only:
• wall switch • hand-held ON/OFF remote
• wall thermostat • hand-held thermostat remote.
See Accessories, page 34. The wall thermostat or hand-held thermostat may not be used where
vented decorative listing is required.

LOCAL CODES

Install and use 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.
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
operation is not permitted.
ON/OFF/ PILOT Knob
Piezo Ignitor
Base Extension
(30" Models
Only)
Base Assembly
Remote Control (Optional)
Front Burner
AU O N
O F
F
C O
T O
O L
E R
Middle Burner
W A
R M
E R
T E
M P
Front and Rear Burner Control Knob
Remote-Ready Models: CSG3924NR, CSG3924PR, CTB3924NR, CTB3924PR, VRL24NR, VRL24PR, VRL30NR, VRL30PR
Figure 1 - Product Identification

UNPACKING

CAUTION: Do not remove the data plates from the base assembly. The data plates contain important warranty and safety information.
1. Remove logs and heater base assembly from carton. not pick up heater base assembly by burners. This could damage heater. Always handle base assembly by the sides of assembly.
2. Remove all protective packaging applied to logs and heater for shipment.
3. Check all items for any shipping damage. If damaged, promptly inform dealer where you bought heater.
Note:
Do
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110021-01A

PRODUCT FEATURES

PRODUCT FEATURES
Operation
Safety Device
Piezo Ignition System

AIR FOR COMBUSTION AND VENTILATION

Providing Adequate Ventilation
5
5
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 vent­free 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 (Remote-Ready Models Only).
SAFETY DEVICE
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent­free 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.
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall not be installed in a confined space or unusually tight construction un­less provisions are provided for adequate combus­tion and ventilation air. Read the following instruc­tions to insure proper fresh air for this and other fuel­burning appliances in your home.
Today’s homes are built more energy efficient than ever. New mate­rials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as possible.
While it is good to make your home energy efficient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper combustion and ventilation.
Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented 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 following ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space The information on pages 5 through 7 will help you classify your
space and provide adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.
Unusually tight construction is defined as construction where:
a. walls and ceilings e xposed to the outside atmosphere
have a continuous water vapor retar der with a rating of one perm (6 x 10 openings gasketed or sealed
b. weather stripping has been added on openable win-
dows 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 pro vide additional fresh air . See
Air From Outdoors
If your home does not meet all of the three criteria above, proceed to
tion,
Determining Fresh-Air Flow For Heater Loca-
page 6.
Confined and Unconfined Space
The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 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 doorless passageways or ventilation grills between them.
-11
kg per pa-sec-m2) or less with
and
and
Ventilation
, page 7
.
110021-01A
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AIR FOR COMBUSTION AND VENTILATION
6
Determining Fresh-Air Flow For Heater Location
AIR FOR COMBUSTION AND VENTILATION
Continued
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Determining if You Have a Confined or Unconfined Space
Use this work sheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install 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:
height) = 2560 cu. ft. (volume of space) If additional ventilation to adjoining room is supplied with grills or open-
ings, 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 = (Maximum Btu/Hr the space
Example:
Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
* Do not include direct-vent gas appliances. Direct-vent draws com­bustion air from the outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
__________________ Btu/Hr (maximum the space can support) __________________ Btu/Hr (actual amount of Btu/Hr used)
Example:
Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling
can support)
2560 cu. ft. (volume of space) x 20 = 51,200 (maximum
Vent-free heater _____________ Btu/Hr Gas water heater* _____________ Btu/Hr Gas furnace _____________ Btu/Hr Vented gas heater _____________ Btu/Hr Gas fireplace logs _____________ Btu/Hr Other gas appliances* + _____________ Btu/Hr Total = _____________ Btu/Hr
Example:
Gas water heater _____________ Btu/Hr Vent-free heater + _____________ Btu/Hr Total = _____________ Btu/Hr
51,200 Btu/Hr (maximum the space can support) 79,000 Btu/Hr (actual amount of Btu/Hr used)
40,000 39,000 79,000
The space in the above example is a confined space because the actual Btu/ Hr used is more than the maximum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:
A. Rework 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, page 7.
B. Vent room directly to the outdoors. See Ventilation Air From Out-
doors, page 7.
C. Install a lower Btu/Hr heater, 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.
WARNING: If the area in which the heater may be operated is smaller than that defined as an uncon­fined space or if the building is of unusually tight construction, provide adequate combustion and ven­tilation air by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1/NFPA 54 Sec­tion 5.3
or applicable local codes
.
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110021-01A
AIR FOR COMBUSTION AND VENTILATION
Continued
VENTILATION AIR
AIR FOR COMBUSTION AND VENTILATION
Ventilation Air
7
7
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). 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.
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:
attic if attic has a thermostat-controlled power vent. Heated air entering the attic will activate the power vent.
Do not provide openings for inlet or outlet air into
12"
Ventilation
Grills
Into Adjoining
Room,
Option 1
Figure 2 - Ventilation Air from Inside Building
Or
Remove Door into Adjoining
Room, Option
3
12"
Outlet Air
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilated Attic
110021-01A
Outlet Air
Inlet Air
Inlet Air
Figure 3 - Ventilation Air from Outdoors
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To Attic
To
Crawl
Space
Ventilated
Crawl Space

INSTALLATION

8
Check Gas Type Installation and Clearances For Vent-Free Operation
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 heat source. If you have a central heating system, you may run systems circulating blower while using heater. This will help circulate the heat throughout the house. In the event of a power outage, you can use this heater as your primary heat source.
WARNING: Installation and repair should be done be a qualified service person. The appliance should be inspected before use and at least annually by a professional service person. More frequent cleaning may be required due to excessive lint from carpeting, bedding material, etc. It is imperative that control compartments, burners and circulating air passage­ways of the appliance be kept clean.
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 (Remote-Ready Models Only).
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. Creosote will ignite if highly heated. A dirty chimney flue may create and distribute soot within the house. Inspect chimney flue and firebox for damage. If damaged, repair flue damper before operating heater.
WARNING: Seal any fresh air vents or ash clean­out 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 11 (Remote-Ready Mod­els Only)
in a recreational vehicle
where curtains, furniture, clothing, or other flam-
mable objects are less than 42 inches from the front, top, or sides of the heater
in high traffic areas
in windy or drafty areas
CAUTION: This heater creates warm air currents. These currents move heat to wall surfaces 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:
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, pages 5 through 7.
Vent-free heaters add moisture to the air. Although
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 fireplace. Call dealer where you bought fireplace for proper type fireplace.
INSTALLATION AND CLEARANCES FOR VENT-FREE OPERATION
WARNING: Maintain the minimum clearances. If possible, provide greater clearances from floor, ceil­ing, and adjoining wall.
LOG SIZING REQUIREMENTS
Log Minimum Firebox Size Height Depth Front Rear *
Width Width
24" 17" 14" 28" 20 1/4" 30" 17" 14" 34" 22 3/8"
* Measured at 14" depth.
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110021-01A
Heat Resistant Material
(A)
INSTALLATION
Continued
Installation and Clearances For Vent-Free Operation (Cont.)
INSTALLATION
9
9
Carefully follow the instructions below. This will ensure safe installation into a 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 com-
bustible material and wall should follow diagram in Figure 4.
Example:
combustible material and protrudes 3 1/2" from the wall. This combustible material must be 4" from the side of the fireplace cabinet (see Figure 4).
Note:
follow firebox manufacturer’s instructions for minimum clear­ances to combustible materials.
B. Clearances from the top of the fireplace opening to the ceiling
should not be less than 42 inches.
*Minimum 16 inches from Side Wall
Figure 4 - Minimum Clearance for Combustible to Wall
The face of a mantel, bookshelf, etc. is made of
When installing your gas logs into a manufactured firebox,
Example
*
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 material behind it. Noncombustible material must extend at least 8 inches up. If noncombustible material is less than 12", you must install the fireplace hood accessory. 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 10, for minimum clearances.
IMPORTANT:
must operate heater with chimney flue damper open. Go to Install­ing Damper Clamp Accessory for Vented Operation, page 11.
Noncombustible Requirements for Material Distance (A) Safe Installation
12" or more Noncombustible material OK. Between 8" and 12" 24" or 30" Models: Install
Less than 8" Noncombustible material
If you cannot meet these minimum clearances, you
fireplace hood accessory (GA6050, GA6052, or GA6053 see page 34).
must be extended to at least 8". See above. If you cannot extend material, you must operate heater with flue damper open.
Accessories
,
Between 8" and 12"
,
NOTICE: Manual control heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fire­place opening is not needed. Go to
Clamp Accessory for Vented Operation,
Installing Damper
page 11.
Minimum Noncombustible Material Clearances
If Not Using Mantel
Note:
If using a mantel proceed to
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. Noncombustible 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" and 30" models only). See Figure 5 for minimum clearances.
110021-01A
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If Using Mantel
. If not using a
Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace
INSTALLATION
10
Mantel Clearances Floor Clearances
INSTALLATION
Continued
MANTEL CLEARANCES
In addition to meeting noncombustible material clearances, you must also meet required clearances between fireplace opening and mantel shelf. If you do not meet the clearances listed below, you will need a hood.
Determining Minimum Mantel Clearance
If you meet minimum clearance between mantel shelf and top of fireplace opening, a hood is not required (see Figure 6).
Determining Minimum Mantel Clearance When Using a Hood
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 hood.
NOTICE: Surface temperatures of adjacent walls and mantels become hot during operation. Walls and mantels above the firebox may become hot to the touch. If installed properly, these temperatures meet the requirement of the national product standard. Follow all minimum clearances shown in this manual.
NOTICE: If your installation does not meet the minimum clearances shown, you must do one of the following:
operate the logs only with the flue damper open
raise the mantel to an acceptable height
remove the mantel
FLOOR CLEARANCES
A. If installing appliance on the floor level, you must maintain
the minimum distance of 14" to combustibles (see Figure 8).
B. If combustible materials are less than 14" to the fireplace, you
must install appliance at least 5" above the combustible floor­ing (see Figure 9).
Mantel Shelf
18" 20" 22" 24"
Distances to Underside of Mantel
Underside of Mantel Shelf
All minimum distances are in inches
Log Set
All Models
Top of Fireplace Opening
Minimum Non­Combustible Material
10" 8" 6"
1
/2
"
2
(A)
12"
Minimum Non­Combustible Material Height
Figure 6 - Minimum Mantel Clearances Without Using Hood
8" Min.
Mantel Shelf
12" 15" 18"
Distances to Underside of Mantel
Underside of Mantel Shelf
All minimum distances are in inches
20"
Top of Fireplace Opening
Minimum Non­Combustible Material
12" 10" 8" 6"
1
/2
"
2
Hood
Hood
(GA6050, GA6052,
(GA6050, GA6052)
or GA6053)
Figure 7 - Minimum Mantel Clearances When Using Hood
Combustible Material
14" Min.
Noncombustible Material
Non-Combustible Material
Figure 8 - Minimum Fireplace Clearances If Installed at Floor Level
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Figure 9 - Minimum Fireplace Clearances Above Combustible Flooring
Hearth
Hearth
5"
5" Min.
Combustible
Combustible Material
Material
110021-01A
INSTALLATION
Continued
Installing Damper Clamp Accessory For Vented Operation
INSTALLATION
Installing Heater Base Assembly
11
11
INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION
(Remote-Ready Models Only)
Note:
When used as a vented heater, appliance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material.
If your heater is a manually-controlled, you may use this heater as a vented product. There are three reasons for operating your heater in the vented mode.
1. The fireplace does not meet the clearance to combustibles re-
quirements 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 above apply to you, you must permanently
open chimney flue damper. You must install the damper clamp accessory (to order, see Accessories, page 34). 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 flue opening you must provide. Attach damper clamp so the minimum permanent flue opening will be maintained at all times.
Area of Various Standard
Round Flues
Diameter (ins.) Area (sq. ins.)
5" 20 sq. inches 6" 29 sq. inches 7" 39 sq. inches 8" 51 sq. inches
Chimney Minimum Permanent
Height (ft.) Flue Opening (sq. ins.)
6' to 15' 39 sq. inches
15' to 30' 29 sq. inches
INSTALLING HEATER BASE ASSEMBLY
WARNING: You must secure this heater to fire­place floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak.
WARNING: If installing in a sunken fireplace, spe­cial care is needed. You must raise the fireplace floor to allow access to heater control panel. This will insure adequate air flow and guard against sooting and con­trols being damaged. Raise fireplace floor with noncom­bustible material. Make sure material is secure.
CAUTION: Do not pick up heater base assembly by burners. This could damage heater. Only handle base assembly by sides of base.
IMPORTANT:
not level, heater will not work properly. For thermostat models, avoid damage to thermostat bulb. Avoid nicks or sharp bends in thermostat bulb wire. Keep thermostat bulb in mounting bracket until ready to mount base to floor. See Optional Positioning of Thermostat Sensing Bulb, page 27.
Installation Items Needed
• hardware package (provided with heater)
• approved flexible gas hose and fitting (not provided) (if allowed by local codes)
• sealant (resistant to propane/LP gas, not provided)
• electric drill with 3/16" drill bit (metal or masonry as applicable)
• flathead screwdriver
1. Connect fitting to base as shown in Figure 11. Connect approved
flexible gas hose to fitting in base (see Figure 11).
IMPORTANT:
flexible gas hose.
Make sure the heater burners are level. If heater is
Hold gas fitting with wrench when connecting
D
Damper
Masonry Fireplace
Figure 10 - Attaching Damper Clamp
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For more information, visit www.desatech.com
110021-01A
Manufactured Fireplace
Damper
Damper Clamp
Damper
Flexible Gas Hose (if allowed by local codes)
Figure 11 - Attaching Flexible Gas Hose to Heater
Fitting
INSTALLATION
12
Installing Heater Base Assembly (Cont.) Connecting To Gas Supply
INSTALLATION
Continued
2. Locate two masonry screws in hardware package.
3. Attach extension plates (left and right on 30" models only) to base by placing tabs into base slots. Use supplied screws (2) to secure extension plates to base (see Figure 12).
4. Place heater base in fireplace.
5. Place logs in their proper position on heater base (see Installing Logs, pages 15 and 16).
6. Center heater base and logs front-to-back and side-to-side in fireplace.
7. Carefully remove logs without moving heater base.
8. Mark screw locations through one hole on each side of the mounting bracket (see Figure 13). If installing in a brick-bot­tom fireplace, mark screw locations in mortar joint of bricks.
9. Remove heater base from fireplace. If installing optional con­trol accessories, do so at this time. Follow all directions pro­vided with accessory.
10. Drill holes at marked locations using 3/16" drill bit.
11. Attach base assembly to fireplace floor using two masonry screws (in hardware package).
Screw
Extension Plate
Figure 12 - Attaching Extension Plates to Base Assembly (30" Model Only)
Extension Plate
Tabs
Slots in Base
CONNECTING TO GAS SUPPLY
WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pres­sure regulator.
WARNING: A qualified service person must con­nect heater to gas supply. Follow all local codes.
CAUTION: For propane/LP gas, never connect heater directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the external regulator between the heater and pro­pane/LP supply.
Installation Items Needed
Before installing heater, make sure you have the items listed below.
• external regulator for propane/LP only (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-certified equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 34.
For propane/LP only, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressure, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 14, page 13. Pointing the vent down protects it from freezing rain or sleet.
Mounting Flange
Figure 13 - Attaching Base Assembly to Fireplace Floor (30" Model Shown)
Masonry Screw
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WARNING: For natural gas, never connect heater to private (non-utility) gas wells. This gas is com­monly known as wellhead gas.
CAUTION: Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diam­eter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of volume will occur.
110021-01A
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