Desa CGD3924NR User Manual

YELLO W FLAME DESIGN

REMOTE

OFF

UNVENTED (VENT-FREE)

NATURAL GAS LOG HEATER

This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by state or 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

OWNER’S OPERATION AND INSTALLATION MANUAL

24" Remote/ ThermostaticallyControlled Model

CGD3924NR

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 gas log set is for installation in a masonry solid fuel burning fireplace or a U.L. listed manufactured solid fuel burning fireplace.

WARNING: This is an unvented gasfired 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

sec-

tion in this manual.

Save this manual for future reference.

CONTENTS

SECTION PAGE

Safety Information................................................................................... 2

Product Identification .............................................................................. 4

Local Codes ............................................................................................. 4

Unpacking................................................................................................ 4

Product Features ...................................................................................... 4

Air for Combustion and Ventilation........................................................ 5

Installing .................................................................................................. 8

Check Gas Type ............................................................................... 8

Installation and Clearances (Vent-Free Operation Only)................. 9

Installing Heater Base Assembly ..................................................... 13

Connecting to Gas Supply................................................................ 15

Checking Gas Connections .............................................................. 16

Installing Logs.................................................................................. 18

Operating Heater ..................................................................................... 19

Inspecting Burners................................................................................... 22

Cleaning and Maintenance ...................................................................... 23

Troubleshooting....................................................................................... 23

Technical Service .................................................................................... 27

Specifications .......................................................................................... 27

Service Hints ........................................................................................... 27

Wiring Diagram....................................................................................... 27

Replacement Parts ................................................................................... 28

Parts Central ............................................................................................ 28

Accessories .............................................................................................. 29

Illustrated Parts Lists ............................................................................... 30

Warranty Information .............................................................................. Back Cover

SAFETY

INFORMATION

W ARNINGS

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.

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 Gas: Natural gas is 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.

Safety Information continues on next page

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SAFETY

INFORMATION

Continued

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WARNINGS

WARNING: Any change to this heater or its controls can be dangerous.

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. 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

3. This heater shall not be installed in a bedroom or bathroom.

4. Never install the heater

• in a recreational vehicle

• where curtains, furniture, clothing, or other flammable objects are less than 36 inches from the front, top, or sides of the heater

• in high traffic areas

• in windy or drafty areas

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, operate heater with flue damper closed.

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. You must operate this heater with a fireplace screen in place. Make sure fireplace screen is closed before running heater.

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

9. Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner flame patterns. Ceiling fans may create drafts that alter burner flame patterns. Altered burner patterns can cause sooting.

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

11. This heater needs fresh, outside air ventilation to run properly. This heater has an oxygen depletion sensor (ODS) pilot light safety system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and Ventilation, pages 5 through 7. If heater keeps shutting off, see Troubleshooting, pages 23 through 26.

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. Never place any objects on the heater.

15. 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.

16. Carefully supervise young children when they are in the room with heater. When using the hand-held remote accessory, keep remote selector switch in the OFF position to prevent children from turning on burners with hand-held remote control unit.

17. 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.

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

19. 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.

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

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

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

Note:

During initial operation, slight smoking may occur due to log curing

Continued

PRODUCT

IDENTIFICATION

Remote Control

Crossover Log

Front Log

TEMP

MAN

AUTO

ONLO

OFF

STATUS

Piezo Ignitor

Remote Selector Switch

Flame Adjustment Knob

Control Knob

Figure 1 - Vent-Free Gas Log Heater

Back Log

Burner

Middle Log

Base Grate

LOCAL CODES

UNPACKING

PRODUCT

FEATURES

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, also known as 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:

1. Remove logs and heater base assembly from carton.

Do 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.

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. State and local codes in some areas prohibit the use of vent-free heaters. You can operate heater as a vented product by opening flue damper.

Safety Pilot

This heater has a pilot with an Oxygen Depletion Sensor Shutoff System (ODS). 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

WARNING

COMBUSTION

AND

VENTILATION

This heater shall not be installed in a confined space 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.

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 is exerpts from National Fuel Gas Code. NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three following ventilation classifications:

1. Unusually Tight Contruction; 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 exposed to the outside atmosphere have a continu-

ous water vapor retarder with a rating of one perm or less with open-

ings gasketed or sealed 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 additional fresh air. See

If your home does not meet all of the three criteria above, proceed to page 6.

Ventilation Air From Outdoors

and

, page 7

and

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Confined Space and Unconfined Space

The National Fuel Gas Code (ANSIZ2123.1, 1992 Section 5.3) 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.

Continued

AIR FOR

COMBUSTION

AND

VENTILATION

Continued

DETERMINING 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:

If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space.

2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.

____________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr

the space can support)

Example:

Btu/Hr the space can support)

3. Add the Btu/Hr of all fuel burning appliances in the space.

Example:

* 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:

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 Outdoors, 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.

Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) =

2560 cu. ft. (volume of space)

2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 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

Gas water heater 40,000 Btu/Hr Vent-free heater + 39,000 Btu/Hr Total = 79,000 Btu/Hr

51,200 Btu/Hr (maximum the space can support) 79,000 Btu/Hr (actual amount of Btu/Hr used)

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AIR FOR

COMBUSTION

AND

VENTILATION

WARNING

If the area in which the heater may be operated is smaller than that defined as an unconfined space, provide adequate combustion and ventilation air by one of the methods described in the

National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3.

Continued

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 NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

WARNING

Rework worksheet, adding the space of the adjoining unconfined space. appliances in both spaces.

The combined spaces must have enough fresh air to supply all

12"

Ventilation

Grills

Into Adjoining

Room,

Option 1

Or Remove Door into

Adjoining

Room, Option

Ventilation Grills

Into Adjoining Room,

Option 2

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12"

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.

IMPORTANT:

controlled power vent. Heated air entering the attic will activate the power vent.

Do not provide openings for inlet or outlet air into attic if attic has a thermostat-

Ventilated Attic

Crawl Space

Ventilated

To Attic

Crawl

Space

Outlet Air

Inlet Air

Outlet Air

Inlet Air

Figure 3 - Ventilation Air from Outdoors

INSTALLING

NOTICE

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 remote selector switch is in the OFF position before installing heater.

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, operate heater with flue damper closed.

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

• in a recreational vehicle

• where curtains, furniture, clothing, or other flammable objects are less than 36 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 in the air (such as tobacco smoke) exist, may discolor walls.

IMPORTANT:

cial, 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 this is benefi-

CHECK GAS TYPE

Use only natural gas. If your gas supply is not natural gas, do not install heater. Call dealer where you bought heater for proper type heater.

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INSTALLING

INSTALLATION AND CLEARANCES (Vent-Free Operation Only)

Continued

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

24" 16" 42"

LOG SIZING REQUIREMENTS

Log Minimum Firebox Size Size Height Depth Front Width

24" 17" 14" 26"

Carefully follow the instructions below. This will ensure safe installation into a masonry or U.L. listed manufactured fireplace.

Minimum Wall and Ceiling Clearances (see Figure 4)

A. Clearances from the side of the fireplace opening to any combustible wall

should not be less than 16 inches.

B. Clearances from the top of the fireplace opening to the ceiling should not be

less than 42 inches.

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42"

16"

Left and Right

Sides

Figure 4 - Minimum Clearance to Wall and Ceiling

Continued

INSTALLING

Continued

Minimum Non Combustible Material Clearances

If Not Using Mantel

Note:

If using a mantel, go to page 11. If not using a mantel, follow the informa-

tion on this page. You must have non combustible material(s) above the fireplace opening. Non

combustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have non combustible material behind it. Non combustible material must extend at least 8" up (for all models). If non combustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). See chart below and Figure 5 for minimum clearances.

IMPORTANT:

If you cannot meet these minimum clearances, you must operate

heater with chimney flue damper open.

Non-Combustible Requirements for Material Distance (A) Safe Installation

12" or more Non combustible material okay. Between 8" and 12" Install fireplace hood accessory (GA6050 or

GA6052, see

Less than 8" Non combustible material must be extended to at

least 8". See cannot extend material, you must operate heater with flue damper open.

Accessories,

Between 8" and 12",

page 29).

above. If you

Heat Resistant Material

(A)

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

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