Desa CCL3924NRA, CCL3018NR, CCL3018NRA, CCL3930PRA, CCL3924PRA User Manual

...

For more information, visit www.desatech.com

Also Design-Certified As Vented Decorative Appliances When

Not Used With Hand-Held Thermostat Remote

CCL3018NR, CCL3018NRA

CCL3018PR, CCL3018PRA

CCL3924NR, CCL3924NRA

CCL3924PR, CCL3924PRA

CCL3930NR, CCL3930NRA

CCL3930PR, CCL3930PRA

18", 24" and 30" Remote Ready

UNVENTED (VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

(Yellow Flame Model Shown)

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 per-

formed 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 factorybuilt 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.

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

Combustion and Ventilation

section on page 4.

Air for

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.

TABLE OF CONTENTS

SAFETY INFORMATION

TABLE OF CONTENTS

SAFETY INFORMATION ............................................................ 2

PRODUCT IDENTIFICATION ..................................................... 3

LOCAL CODES........................................................................... 4

UNPACKING............................................................................... 4

PRODUCT FEATURES .............................................................. 4

REMOTE CONTROL ACCESSORIES ....................................... 4

AIR FOR COMBUSTION AND VENTILATION ........................... 4

INSTALLATION ........................................................................... 7

OPERATING HEATER.............................................................. 16

INSPECTING BURNERS.......................................................... 18

WIRING DIAGRAM ................................................................... 18

SAFETY INFORMATION

WARNINGS

WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects, or other reproductive harm.

IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate, or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.

CLEANING AND MAINTENANCE ............................................ 19

TROUBLESHOOTING .............................................................. 20

SPECIFICATIONS .................................................................... 23

SERVICE HINTS....................................................................... 23

TECHNICAL SERVICE ............................................................. 23

REPLACEMENT PARTS .......................................................... 23

ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST ....... 24

ACCESSORIES ........................................................................ 28

PARTS CENTRAL..................................................................... 28

OWNER’S REGISTRATION FORM .......................................... 29

WARRANTY INFORMATION...................................... Back Cover

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 use a blower insert, heat exchanger insert, or other accessory not approved for use with this fireplace.

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 controls

can be dangerous.

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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, keep selector switch in the OFF position to prevent children from turning on burners with remote.

Keep the appliance area clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

111161-01A

SAFETY INFORMATION

A U

O O N

C OO

L ER

W AR

M E

T E M

Continued

SAFETY INFORMATION

PRODUCT IDENTIFICATION

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 (propane/LP units only).

3. To prevent performance problems, the use of a propane/LP fuel tank of less than 100 lb. 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 fire department

5. 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 10).

6. 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 before operating heater.

7. 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. Make sure there are no obstructions across openings of fireplace.

8. This log heater is designed to be smokeless. If logs ever appear to smoke, turn off heater and call a qualified service person.

Note:

During initial operation, slight smoking may occur

due to log curing and heater burning manufacturing residues.

9. To prevent the creation of soot, follow the instructions in Clean- ing and Maintenance, page 19.

10. 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.

11. 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 not enough fresh air is available. See Air for Combustion and Ventilation, pages 4 through 6. If heater keeps shutting off, see Trouble- shooting, pages 20 through 223.

12. Do not run heater

• where flammable liquids or vapors are used or stored

• under dusty conditions

13. Do not use this heater to cook food or burn paper or other objects.

14. 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.

15. Do not operate heater if any log is broken. Do not operate heater if a log is chipped (dime-sized or larger).

16. Turn heater off and let cool before servicing, installing, or repairing. Make sure the remote selector switch is in the OFF position. Only a qualified service person should install, service, or repair heater.

17. Make sure the remote selector switch is in the OFF position when you are away from home for long periods of time.

18. This heater must not be connected to any external electrical source.

19. Operating heater above elevations of 4,500 feet may cause pilot outage.

20. Provide adequate clearances around air openings.

PRODUCT IDENTIFICATION

Crossover Log

Front Log

Optional Remote Control

Piezo Ignitor

Optional Selector Switch

Flame Adjustment Knob

Control Knob

Figure 1 - Vent-Free Gas Log Heater (Logs May Vary By Model)

Back Log

Burner

Middle Log

Base Grate

111161-01A

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LOCAL CODES

UNPACKING PRODUCT FEATURES REMOTE CONTROL ACCESSORIES AIR FOR COMBUSTION AND VENTILATION

Providing Adequate Ventilation

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/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.

UNPACKING

CAUTION: Do not remove the data plates attached to the heater 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 grate.

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:

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 flames. 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. This heater may also be operated as a vented decorative (ANSI Z21.60) product by opening flue damper (non-thermostat models only).

SAFETY PILOT

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.

REMOTE CONTROL ACCESSORIES

There are two optional remote controls that can be purchased separately for this log heater:

• hand-held ON/OFF remote

• hand-held thermostat remote See Accessories, page 28. The hand-held thermostat may not be used where vented decorative

listing is required.

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 4 through 6 will help you classify your

space and provide adequate ventilation.

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111161-01A

AIR FOR COMBUSTION AND VENTILATION

Continued

AIR FOR COMBUSTION AND VENTILATION

Providing Adequate Ventilation (Cont.)

Determining Fresh-Air Flow For Heater Location

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

-11

kg per pa-sec-m2) or less with

and

b. weather stripping has been added on openable win-

dows and doors

and

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 f or plumbing, electrical, and gas lines, and at other openings.

If your home meets all of the three criteria above, you must provide additional fresh air. See

From Outdoors

, page 6.

Ventilation Air

If your home does not meet all of the three criteria above, proceed to

Heater Location

Determining Fresh-Air Flow For

Confined Space 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.

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)

2,560 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

111161-01A

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AIR FOR COMBUSTION AND VENTILATION

Determining Fresh-Air Flow For Heater Location (Cont.) Ventilation Air

AIR FOR COMBUSTION AND VENTILATION

Continued

The space in the example on page 5 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 V entilation Air Fr om Inside Building.

B. Vent room directly to the outdoors. See Ventilation Air From Out-

doors.

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.

Ventilation

Grills

Into Adjoining

Room,

Option 1

Remove Door into Adjoining

Room, Option

12"

Ventilation Grills

Into Adjoining Room,

Option 2

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

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). 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"

Figure 2 - Ventilation Air from Inside Building

Outlet Air

Inlet Air

Figure 3 - Ventilation Air from Outdoors

Ventilated Attic

Ventilated

Crawl Space

To Attic

Crawl

Space

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111161-01A

INSTALLATION

Check Gas Type

Installation and Clearances

NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your primary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. This will help circulate the heat throughout the house. In the event of a power outage, you can use this heater as your primary heat source.

NOTICE: State or local codes may only allow operation of this appliance in a vented configuration. Check your state or local codes.

WARNING: A qualified service person must install heater. Follow all 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. Creosote 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 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 10.

• 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 4 through 6.

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 heater. Call dealer where you bought heater for proper type heater.

INSTALLATION AND CLEARANCES (Vent-Free Operation Only)

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 Side Wall Ceiling

ALL 16" 42"

LOG SIZING REQUIREMENTS

Minimum Firebox Size

Log Front Rear

Size Height Depth Width Width*

18" 17" 13" 28" 20" 24" 17" 13" 28" 21" 30" 17" 13" 34" 24"

*Measured at 13" depth Carefully follow the instructions below. This will ensure safe

installation into a masonry, UL127-listed manufactured fireplace, or listed vent-free firebox.

111161-01A

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INSTALLATION

Installation and Clearances (Cont.)

INSTALLATION

Continued

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:

The face of a mantel, bookshelf, etc. is made of combustible material and protrudes 3 1/2" from the wall. This combustible material must be 4" from the side of the fireplace opening (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 fireplace opening to the ceiling

should not be less than 42 inches.

Example

*Minimum 16 inches from Side Wall

Figure 4 - Minimum Clearance for Side Combustible Material, Side Wall, and Ceiling

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 10.

Minimum Noncombustible Material Clearances

If Not Using Mantel

Note:

If using a mantel, proceed to If Using Mantel. If not using a

mantel, follow the information below. 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.

IMPORTANT:

If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Install- ing Damper Clamp Accessory for Vented Operation, page 10.

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 (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" and 30" 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 on page 9 for minimum clearances.

IMPORTANT:

If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Install- ing Damper Clamp Accessory for Vented Operation, page 10.

Noncombustible Requirements for Material Distance (A) Safe Installation

12" or more Noncombustible material okay. Between 8" and 12" Install fireplace hood accessory

(GA6050, GA6052, or GA6053, see

Accessories,

page 28).

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 flue damper open.

Heat Resistant Material

(A)

Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace

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111161-01A

INSTALLATION

Minimum NonCombustible Material

8" Min.

12" 15" 18"

All minimum distances are in inches

Log Set

18", 24", 30" Models

20"

10"

12"

Distances to Underside of Mantel

Hood (GA6050, GA6052)

Top of Fireplace Opening

Underside of Mantel Shelf

Mantel Shelf

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 Clearances

If you meet minimum clearance between mantel shelf and top of fireplace opening, a hood is not required (see Figure 6).

Determining Minimum Mantel Clearances 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.

INSTALLATION

Mantel Clearances

Floor Clearances

All Models

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 requirements 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.

Mantel Shelf

18"8"20"

14"

Distances to Underside of Mantel

22" 17"

Underside of Mantel Shelf

24" 20"

Top of Fireplace Opening

All minimum distances are in inches

Log Set

24"/30" Models 18" Model

Minimum NonCombustible Material

10" 8" 6"

(A)

12" 8"

Minimum NonCombustible Material Height

Figure 7 - Minimum Mantel Clearances When Using Hood

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).

Combustible

5" Min.

Material

Combustible Material

14" Min.

Noncombustible Material

Figure 8 - Minimum Fireplace Clearances If Installed at Floor Level

Hearth

Figure 9 - Minimum Fireplace Clearances Above Combustible Flooring

Figure 6 - Minimum Mantel Clearances Without Using Hood

111161-01A

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INSTALLATION

Installing Damper Clamp Accessory For Vented Operation Installing Heater Base Assembly

INSTALLATION

Continued

INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION

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 model, 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 28). 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.

Chimney Minimum Permanent

Height (ft.) Flue Opening (sq. ins.)

6' to 15' 39 sq. inches

15' to 30' 29 sq. inches

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

Damper Clamp

Damper

Masonry Fireplace

Figure 10 - Attaching Damper Clamp

Manufactured Fireplace

INSTALLING HEATER BASE ASSEMBLY

CAUTION: Do not remove the data plates attached to the heater base assembly. The data plates contain important warranty and safety information.

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 the burner. This could damage heater. Only handle base assembly by grates.

IMPORTANT:

not level, heater will not work properly.

For more information, visit www.desatech.com

Make sure the heater burners are level. If heater is

111161-01A

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