Desa VRL24PR, VRL24NR, VRL24NT, VRL30NT, VRL30NR User Manual

...

UNVENTED (VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

24" AND 30" REMOTE-READY MODELS:

VRL24NR, VRL24PR, VRL30NR, VRL30PR, CSG3924NR,

CSG3924PR, CTB3924NR, CTB3924PR, CSG3930NR, CSG3930PR

24" AND 30" THERMOSTAT MODELS:

VRL24NT, VRL24PT, VRL30NT, VRL30PT, CSG3924NT, CSG3924PT,

Remote-Ready Models Also Design-Certiﬁed As Vented Decorative Appliances

CTB3924NT, CTB3924PT

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 quali-

ﬁed installer, service agency or the gas supplier.

Save this manual for future reference.

For more information, visit www.desatech.com

WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or additional information consult a qualiﬁed installer, service agency or the gas supplier.

WARNING: This appliance is for installation only in a solid-fuel burning masonry or UL127 factory-built ﬁreplace or in a listed ventless ﬁrebox enclosure. It is design-certiﬁed for these installations in accordance with ANSI Z21.11.2. Exception: Do not install this appliance in a factory-built ﬁreplace that includes instructions stating it has not been tested or should not be used with unvented gas logs.

WARNING: This is an unvented gas-ﬁred heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation section on page 6 of this manual.

This appliance may be installed in an aftermarket,* permanently located, manufactured (mobile) home, where not prohibited by local codes.

This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

TABLE OF CONTENTS

Safety Information ............................................... 3

Product Identiﬁcation ...........................................

Optional Remote Control Accessories .................

Local Codes ........................................................ 5

Unpacking ........................................................... 6

Product Features ................................................. 6

Air For Combustion and Ventilation .....................

Installation ........................................................... 8

Operating Heater ............................................... 20

Inspecting Burners ............................................ 25

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Cleaning and Maintenance ................................ 26

Troubleshooting .................................................

Optional Positioning of Thermostat Sensing Bulb

Wiring Diagram .................................................. 33

Speciﬁcations ....................................................

Illustrated Parts Breakdown .............................. 35

Replacement Parts ............................................ 40

Technical Service ..............................................

Service Hints ..................................................... 40

Accessories ....................................................... 41

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.. 32

SAFETY INFORMATION

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 ﬁreplace. Improper use of this ﬁreplace 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 Poiso ning: Early signs of

carbon monoxide poisoning resemble the ﬂu, with headaches, dizziness or nausea. If you have these signs, the ﬁreplace may not be working properly. Get fresh air at once! Have ﬁreplace 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 these gases. The odor helps you detect a gas leak. However, the odor added to the gas can fade. Gas may be present even though no odor exists.

Make certain you read and understand all warnings. Keep this manual for reference. It is your guide to safe and proper operation of this ﬁreplace.

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

WARNING: This appliance is for installation only in a solid-fuel burning ﬁreplace or approved ventless ﬁrebox enclosure.

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 handheld remote accessory, 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.

110021-01M 3

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

SAFETY INFORMATION

Continued

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

1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.

2. Do not place propane/LP supply tank(s) in side any structure. Locate propane/LP supply tank(s) outdoors (propane/LP units only).

3. 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 neighb orʼs phon e. Foll ow the gas supplierʼs instructions

• if you cannot reach your gas supplier, call

the ﬁre department

4. This heater shall not be installed in a bedroom or bathroom unless installed as a vented appli ance. See Installing Damper Clamp Accessory for Vented Operation, page 13 (Remote-Ready 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. A dirty chimney ﬂue may create and distribute soot within the house. Inspect chimney ﬂue and ﬁrebox for damage. If damaged, repair ﬂue before operating heater.

6. Do not burn solid-fuel in a masonry or UL127 factory-built ﬁreplace in which a vent-free room heater is installed.

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. To prevent the creation of soot, follow the instructions in Cleaning and Maintenance, page 26.

9. 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.

10. This heater needs fresh, outside air ventilation to run properly. This heater has an Oxygen De pletion Sensing (ODS) safety shutoff system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and Ventilation, page 6. If heater keeps shutting off, see Troubleshooting, page 28.

11. Do not run heater

• where ﬂammable liquids or vapors are

used or stored

• under dusty conditions

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

13. 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.

14. Do not operate heater if any log is broken. Do not operate heater if a log is chipped (dimesized or larger).

15. 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.

16. 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).

17. Remote-ready heaters do not need to be con nected to any external electrical source.

18. Operating heater above elevations of 4,500 feet could cause pilot outage.

19. To prevent performance problems with pro pane/LP models, do not use propane/LP fuel tank of less than 100 lb. capacity.

20. Prov ide adeq ua te clearan ce s around air openings.

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110021-01M

PRODUCT

IDENTIFICATION

Log Set (Varies According to Model)

Grate

Piezo Ignitor

Selector Switch (Optional)

ON/OFF/ PILOT Knob

Burner Control Knob

Front and Rear Burner Control Knob

Thermostat Models

Pilot

Grate

Piezo Ignitor

Remote Control (Optional)

Remote-Ready Models

Figure 1 - Product Identiﬁcation

Assembly

Front Burner

Middle Burner

Base Assembly

Rear Burner

Base Assembly

Front and Rear Burner Control Knob

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 41.

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 lat est edition of The National Fuel Gas Code ANSI

Z223/NFPA 54*.

*Available from:

American National Standards Institute, Inc.

National Fire Protection Association, Inc.

Note: Where listed vented decorative logs are required, thermostat models are not permitted.

State of Massachusetts: The installation must be made by a licensed plumber or gas fitt er in the Common we alth of Massachusetts.

Sel lers of unvented propane or natural gas-ﬁred supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit.

Vent-free gas products are prohibited for bedroom and bathroom installation in the Commonwealth of Massachusetts.

1430 Broadway

New York, NY 10018

Batterymarch Park

Quincy, MA 02269

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UNPACKING

CAUTION: Do not remove the data plates from the grate assembly. The data plates contain important warranty and safety information.

1. Remove logs and heater base assembly from

carton. Note: Do 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.

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 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 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.

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 fuel-burning appliances in your home.

Todayʼs homes are built more energy efﬁcient than ever. New materials, increased insulation and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as possible.

While it is good to make your home energy efﬁ cient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper combustion and ventilation.

Exhaust fans, ﬁreplaces, clothes dryers and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances.

PROVIDING ADEQUATE VENTILATION

The following are excerpts from National Fuel Gas Code. ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.

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

1. Unusually Tight Construction

2. Unconﬁned Space

3. Conﬁned Space

The information on pages 6 through 8 will help you classify your space and provide adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.

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110021-01M

AIR FOR COMBUSTION

AND VENTILATION

Continued

Unusually tight construction is deﬁned as construction where:

a. walls and ceilings exposed to the out

side atmosphere have a continuous water vapor retarder with a rating of one perm (6x10 less with openings gasketed or sealed and

b. weather stripping has been added on

openable windows 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 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 Ventilation Air From Outdoors, page 8.

If your home does not meet all of the three criteria above, proceed to Determining Fresh-Air Flow For Heater Location.

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 m 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 FIREPLACE 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 ﬁreplace plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.

-11

kg per pa-sec-m2) or

per kw) of the aggregate input

1. Determine the volume of the space (length x width x height).

Length x Width x Height =__________cu. ft.

(volume of space)

Example: Space size 20 ft. (length) x 16 ft.

(width) x 8 ft. (ceiling height) = 2,560 cu. ft. (volume of space)

If additional ventilation to adjoining room is

supplied with grills or openings, add the volume of these rooms to the total volume of the space.

2. Multiply the space volume by 20 to determine the maximum Btu/Hr the space can support.

__________ (volume of space) x 20 = (Maxi-

mum Btu/Hr the space can support)

Example: 2,560 cu. ft. (volume of space) x 20 =

51,200 (maximum Btu/Hr the space can support)

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

Vent-free ﬁreplace

Gas water heater*

Gas furnace

Vented gas heater

Gas ﬁreplace logs

Other gas appliances* +

Total =

* Do not include direct-vent gas appliances. Di

rect-vent draws combustion air from the outdoors and vents to the outdoors.

Example:

Gas water heater

Vent-free ﬁreplace +

Total =

4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.

_________

_________ Example: 51,200 Btu/Hr (maximum the space

79,000 Btu/Hr (actual amount of

The space in the 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 ad ditional fresh air. Your options are as follows:

A. Rework worksheet, adding the space of an adjoin

ing room. If the extra space provides an unconﬁned space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 8.

B. Vent room directly to the outdoors. See Ventila

tion Air From Outdoors, page 8.

C. Install a lower Btu/Hr ﬁreplace, if lower Btu/Hr

size makes room unconﬁned.

Btu/Hr (maximum the space can support)

Btu/Hr (actual amount of Btu/Hr used)

can support)

Btu/Hr used)

__________ Btu/Hr

40,000

__________ Btu/Hr

31,500

__________ Btu/Hr

71,500

__________ Btu/Hr

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AIR FOR COMBUSTION

Outlet Air

Ventilated Attic

Outlet

Inlet Air

ntilated

Crawl Space

Crawl

Space

To Attic

Remove Door into Adjoining

Room, Option

Ventilation Grills

Into Adjoining Room,

Option

ntilation Grills

Into Adjoining

Room,

Option 1

12"

AND VENTILATION

Continued

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.

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: Do not provide openings for inlet

or outlet air into attic if attic has a thermostatcontrolled power vent. Heated air entering the attic will activate the power vent.

Figure 3 - Ventilation Air from Outdoors

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 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.

Figure 2 - Ventilation Air from Inside

Building

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110021-01M

INSTALLATION

Continued

WARNING: Installation and repair should be done by a quali ﬁed 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.

WARNING: Never install the

heater

• in a bedroom or bathroom

unless installed as a vented appliance, see page 13 (Remote-Ready Models Only)

• in a recreational vehicle

• where curtains, f urni ture, clothing or other ﬂammable objects are less than 42 inches from the front, top or sides of the ﬁrebox opening

• in high trafﬁc areas

• in windy or drafty areas

NOTICE: State or local codes may only allow operation of this appli ance in a vented conﬁguration. Check your state or local codes (Remote-Ready Models Only).

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

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, creo sote, ashes and loose paint by a qualiﬁed chimney cleaner. Creo sote will ignite if highly heated. A dirty chimney ﬂue may create and distribute soot within the house. Inspect chimney ﬂue and ﬁrebox

where impurities (such as, but not limited to, tobacco smoke, aromatic candles, cleaning ﬂuids, oil or kerosene lamps, etc.) in the air exist, may discolor walls or cause odors.

IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneﬁcial, installing heater in rooms without enough ventilation air may cause

mildew to form from too much moisture. See Air for Combustion and Ventilation

CHECK GAS TYPE

Use only 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.

, page 6.

for damage. If damaged, repair ﬂue before operating heater.

WARNING: This appliance

is equipped for (natural or pro-

WARNING: Seal any fresh air vents or ash clean-out doors

pane/LP) gas. Field conversion is not permitted.

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.

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INSTALLATION

Continued

INSTALLATION AND CLEARANCES (Vent-Free Operation Only)

WARNING: Maintain the minimum clearances. If you can, provide greater clearances from ﬂoor, ceiling and adjoining wall.

LOG SIZING REQUIREMENTS

Minimum Firebox Size Log Front Rear

Size Height Depth Width Width*

24" 17" 14" 28" 20 30" 17" 14" 34" 22

*Measured at 14" Depth

Carefully follow the instructions below. This will ensure safe installation into a masonry, UL127listed manufactured ﬁreplace or certiﬁed vent-free ﬁrebox.

Minimum Clearances For Side Combustible Material, Side Wall and Ceiling

A. Clearances from the side of the fireplace

cabinet to any combustible material and wall should follow diagram in Figure 4.

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 cabinet (see Figure 4).

Note: When installing your gas logs into

a man uf actur ed fireb ox , foll ow fir ebox manufacturerʼs 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

/4"

/8"

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 Installing Damper

Clamp Accessory for Vented Operation, page 13.

Minimum Noncombustible Material Clearances

If Not Using Mantel

Note: If using a mantel, proceed to If Using Mantel below. If not using a mantel, follow the

information below.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney ﬂue damper open. Go to Installing Damper Clamp

Accessory for Vented Operation

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" model only). Even if noncombustible material is more than 12", you may need the hood accessory to deﬂect heat away from your mantel shelf. See Figures 5 and 6, page 11 and Figure 7 page 12, for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney ﬂue damper open. Go to Installing Damper Clamp

Accessory for Vented Operation,

, page 13.

page 13.

*Minimum 16 inches from Side Wall

Figure 4 - Minimum Clearance for

Combustible to Wall

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110021-01M

INSTALLATION

Minimum NonCombustible Material

Minimum NonCombustible Material Height

Distances to Underside of Mantel

Top of Fireplace Opening

Underside of Mantel Shelf

Mantel Shelf

12"

(A)

18"

20"

22"

24"

All minimum distances are in inches

Log Set

All Models

10"

Continued

Noncombustible Requirements for Material Distance (A) Safe Installation

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

accessory (GA6050, GA6052 or GA6053, see Accessories, page 41).

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.

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

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).

Figure 6 - Minimum Mantel Clearances Without Using Hood

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Minimum Noncombustible Material

8" Min.

12"

15"

18"

All minimum distances are in inches

20"

/2"

10"

12"

Distances to Underside of Mantel

Hood (GA6050, GA6052 or GA6053)

Top of Fireplace Opening

Underside of Mantel Shelf

Mantel Shelf

INSTALLATION

Hearth

5" Min.

Combustible Material

14" Min.

Combustible Material

Noncombustible Material

Continued

Determining Minimum Mantel Clearance when Using a Hood

If minimum clearances in Figure 6 (page 11) are not met, you must have a hood. When using a hood there are still certain minimum mantel clearances required. Follow minimum clearances shown in Figure 7 when using a hood.

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).

Figure 8 - Minimum Fireplace Clearances

If Installed at Floor Level

Figure 7 - Minimum Mantel Clearances When Using Hood

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Figure 9 - Minimum Fireplace Clearances

Above Combustible Flooring

110021-01M

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 requirements for vent-free operation.

2. State or local codes do not permit vent-free operation.

3. You prefer vented operation.

If reasons number 1 or 2 above apply to you, you must permanently open chimney ﬂue damper. You must install the damper clamp accessory (to order,

Accessories, page 41). This will insure vented

see 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

(Remote-Ready Models Only)

Damper

Damper Clamp

Damper

Masonry Fireplace

Figure 10 - Attaching Damper Clamp

Manufactured

Damper

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: 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.

Chimney Minimum Permanent Height (ft.) Flue Opening (sq. ins.)

6' to 15' 39 sq. inches 15' to 30' 29 sq. inches

CAUTION: Do not pick up heater base assembly by the burner. This could damage heater. Only handle base as sembly by grates.

110021-01M 13

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INSTALLATION

Continued

IMPORTANT: Make sure the heater burners are level. If heater is 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 32.

Installation Items Needed

• hardware package (provided with heater)

• approved ﬂexible gas hose (not provided) (if allowed by local codes)

•

sealant (resistant to propane/LP gas, not provided)

• electric drill with 3/16" drill bit

• 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: Hold gas ﬁtting with wrench

when connecting ﬂexible gas hose.

Locate two masonry screws in hardware package.

3. Place heater base in ﬁreplace.

4. Place logs in their proper position on heater

base (see Installing Logs, page 18).

5. Center heater base and logs front-to-back and

side-to-side in ﬁreplace.

6. Carefully remove logs without moving heater

base.

7. Mark screw locations through one hole on each

side of the mounting bracket (see Figure 12). If installing in a brick-bottom ﬁreplace, mark screw locations in mortar joint of bricks.

8. Remove heater base from ﬁreplace. If installing

optional control accessories, do so at this time. Follow all directions provided with accessory.

9. Drill holes at marked locations using 3/16"

drill bit.

10. Attach base assembly to ﬁreplace ﬂoor using

two masonry screws (in hardware package).

Flexible Gas Hose (if allowed by local codes)

Fitting

Mounting Flange

Masonry Screw

Figure 12 - Attaching Base Assembly to

Fireplace Floor (30" Model Shown)

CONNECTING TO GAS SUPPLY

WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator.

W AR N IN G : A qua l i fi e d service person must connect heater to gas supply. Follow all local codes.

CAUTION: Never connect propane/LP heater directly to the propane/LP supply. Propane/LP heaters require an external regu lator (not supplied). Install the external regulator between the heater and propane/LP supply.

WARNING: For natural gas units, never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

Figure 11 - Attaching Flexible Gas Hose

to Heater

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110021-01M

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