Desa VF-24N-BTB User Manual

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Page 1

UNVENTED (VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

VF-18N-PDG, VF-18P-PDG VF-24N-PDG, VF-24P-PDG

VF-18N-BTB, VF-18P-BTB VF-24N-BTB, VF-24P-BTB

WARNING: If the information in this manual is not fol-

lowed exactly, a re or explosion may result causing property damage, personal injury or loss of life.

— Do not store or use gasoline or other ammable

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 re department.

— Installation and service must be performed by a quali-

ed installer, service agency or the gas supplier.

INSTALLER: Leave this manual with the appliance CONSUMER: Retain this manual for future reference.

For more information, visit www.desatech.com

Page 2

TABLE OF CONTENTS

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

Product Identication ........................................... 5

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

Unpacking............................................................ 5

Product Features ................................................. 5

Optional Remote Control Accessories ................. 5

Air For Combustion and Ventilation ..................... 6

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

Operating Heater ............................................... 15

Inspecting Burners ............................................ 18

SAFETy INFORMATION

Cleaning and Maintenance ................................ 19

Troubleshooting ................................................. 20

Specications .................................................... 24

Wiring Diagram .................................................. 24

Service Hints ..................................................... 24

Technical Service............................................... 24

Replacement Parts ............................................ 24

Accessories ....................................................... 25

Illustrated Parts Breakdown and Parts List........ 26

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

WARNING: Improper installation, adjustment, al-

teration, service or maintenance can cause in-

jury or property damage.

Refer to this manual for correct installation and

operational procedures.

For assistance or additional information con-

sult a qualied installer, service agency or the gas supplier.

WARNING: This appliance

is for installation only in a

solid-fuel burning masonry or UL127 factory-built replace or in a listed ventless rebox enclosure. It is design-certied 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-red 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 in-

stalled in an aftermarket,*

per man ent ly loc ate d, 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

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111826-01G2

Page 3

SAFETy INFORMATION

Continued

WARNING: This product con-

tains 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 be fore tr ying to assemb le, 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 u, 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 inuence of alcohol and those at high altitudes.

Natural and Propane/LP Gas: Natural and pro-

pane/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 heater.

WARNING: Any change to

this heater or its controls can

be dangerous.

WARNING: Do not use a

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

WARNING: Vent-free products

are prohibited for bedroom and bathroom installation in the Commonwealth of Massachusets.

WARNING: Do not allow fans

to blow directly into the heater. Avoid any drafts that alter burner ame patterns. Ceiling fans can create drafts that alter burner ame patterns. Altered burner patterns can cause sooting.

WARNING: Do not place log scraps or lava rocks on burner.

Due to high temperatures, the appliance should be located out of trafc and away from furniture and draperies.

Do not place clothing or other ammable 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 chil-

dren 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.

111826-01G 3

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Page 4

SAFETy INFORMATION

Continued

You must operate this heater with a replace doors or screen in place and fully closed. Unless provided by other means, screens shall have openings for introduction of combustion air.

Keep the appliance area clear and free from combustible materials, gasoline and other ammable 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) inside 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

neighbor’s phone. Follow the gas supplier’s instructions

• if you cannot reach your gas supplier, call

the re department

4. This heater shall not be installed in a bedroom or bathroom unless installed as a vented appliance (see Installing Damper Clamp Accessory for Vented Operation, page 11)

Before installing in a solid fuel burning replace, the chimney ue and rebox must be cleaned of soot, creosote, ashes and loose paint by a qualied chimney cleaner. Creosote will ignite if highly heated. A dirty chimney ue may create an distribute soot within the house. Inspect chimney ue for damage. If damaged, repair ue before operating heater.

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

If replace has glass doors, never operate this heater with glass doors closed. If you operate heater with doors closed, heat buildup inside replace will cause glass to burst. Make sure there are no obstructions across openings of replace.

8. To prevent the creation of soot, follow the instructions in Cleaning and Maintenance, page 19.

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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 depletion sensing (ODS) pilot light safety 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 20.

11. Do not run heater

• where ammable liquids or vapors are used

or stored

• under dusty conditions

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

13. Do not use heater if any part has been exposed to or under water. Immediately call a qualied 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 or repairing. Make sure the selector switch is in the OFF position. Only a qualied service person should install, service or repair heater.

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

17. This heater does not need to be connected to any external electrical source.

18. To prevent performance problems, do not use propane/LP fuel tank of less than 100 lb. capacity (propane/LP units only).

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

State of Massachusetts: The installa-

tion 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-red 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.

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PRODUCT

IDENTIFICATION

Log Set Assembly

Electronic Ignitor

Control Knob

Flame Adjustment Knob

Selector Switch

Hand-Held Remote Control

BTB Models

Remote Receiver

Chassis Assembly

UNPACkING

CAUTION: Do not remove the

data plates from the grate assembly. The data plates contain important warranty and safety information.

1. Re move log set asse mbl y from carton . Note: Do not pick up assembly by logs. This could damage heater. Always handle assembly by grate.

2. Remove control cover oor media components.

3. Remove all protective packaging applied to log set for shipment.

4. Check all items for any shipping damage. If damaged, promptly inform dealer where you bought heater.

Log Set Assembly

Electronic Ignitor

Control Knob

Flame Adjustment Knob

Selector Switch

Figure 1 - Product Identication

Chassis Assembly

PDG Models

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 Z223.1/NFPA 54*.

*Available from:

American National Standards Institute, Inc.

National Fire Protection Association, Inc.

111826-01G 5

1430 Broadway

New York, NY 10018

Batterymarch Park

Quincy, MA 02269

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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 ames and glowing ceramic logs/coals. This heater is designed for vent-free operation with ue 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 ue damper.

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.

ELECTRONIC IGNITION SYSTEM

This system has an electronic ignitor. This system requires no matches or other sources to light heater. Receiver requires 4 AA batteries (included), handheld remote control requires a 12-volt battery and a 3-volt button cell battery for the LCD display (both included).

OPTIONAL REMOTE

CONTROL ACCESSORIES

There are two optional remote accessories available for the PDG models that come standard with the BTB models:

• wall switch

• hand-held ON/OFF remote

See Accessories, page 25.

Page 6

AIR FOR COMBUSTION

AND VENTILATION

WARNING: This heater shall

not be installed in a conned 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.

Today’s homes are built more energy efcient 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 ef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, replaces, 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 classications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space

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

Unusually Tight Construction

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

Unusually tight construction is dened as

construction where:

a. walls and ceilings exposed to the out-

side atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10 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 oors, 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.

Conned and Unconned Space

The National Fuel Gas Code, ANSI Z223.1/NFPA 54 denes a conned 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 unconned 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 unconned space.

* Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.

-11

kg per pa-sec-m2) or less

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if You Have a Conned or Unconned Space

Use this work sheet to determine if you have a conned or unconned space.

Space: Includes the room in which you will install

heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.

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111826-01G6

Page 7

Remove Door into Adjoining

Room, Option

Ventilation Grills

Into Adjoining Room,

Option 2

Ventilation

Grills

Into Adjoining

Room,

Option 1

12"

AIR FOR COMBUSTION

AND VENTILATION

Continued

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 replace __________ Btu/Hr

Gas water heater* __________ Btu/Hr

Gas furnace __________ Btu/Hr

Vented gas heater __________ Btu/Hr

Gas replace logs __________ Btu/Hr

Other gas appliances* + __________ Btu/Hr

Total = __________ Btu/Hr

* 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 __________ Btu/Hr

Vent-free replace + __________ Btu/Hr

Total = __________ Btu/Hr

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

73,000 Btu/Hr (actual amount of

The space in the example is a conned 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 adjoin-

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

B. Vent room directly to the outdoors. See Ventila-

tion Air From Outdoors, page 8.

111826-01G 7

Btu/Hr (maximum the space can support)

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

can support)

Btu/Hr used)

40,000

33,000

73,000

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C. Install a lower Btu/Hr replace, if lower Btu/Hr

size makes room unconned.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconned space. You will need no additional fresh air ventilation.

WARNING: If the area in

which the heater may be operated is smaller than that dened as an unconned 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 unconned space. When ventilating to an adjoining unconned space, you must provide two permanent openings: one within 12" of the ceiling and one within 12" of the oor 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.

Figure 2 - Ventilation Air from Inside

Building

Page 8

Outlet Air

Ventilated Attic

Outlet A

Inlet Air

Ventilated

Crawl Space

Crawl

Space

To Attic

AIR FOR COMBUSTION

AND VENTILATION

Continued

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 oor. 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.

vice person must install heater. Follow all local codes.

WARNING: A qualied ser-

NOTICE: State or local codes

may only allow operation of this appliance in a vented conguration. Check your state or local codes.

WARNING: Make sure the

selector switch is in the OFF position before installing heater.

WARNING: Before installing in a solid fuel burning replace, the chimney ue and rebox must be

cleaned of soot, creosote, ashes

and loose paint by a qualied chimney cleaner. Creosote will ignite if highly heated. A dirty chimney ue may create and distribute soot within the house. Inspect chimney and rebox ue for damage. If damaged, repair ue and rebox before operating heater.

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

located on oor or wall of replace. If not, drafting may cause pilot outage or sooting. Use a heat-resistant sealant. Do not seal chimney ue damper.

WARNING: Never install the heater

• in a bedroom or bathroom un-

less installed as a vented unit,

see page 11

• in a recreational vehicle

• where curtains, furniture, cloth-

ing or other ammable objects

are less than 42" from the front,

top or sides of the heater

• in high trafc areas

• in windy or drafty areas

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111826-01G8

Page 9

INSTALLATION

Continued

CAUTION: This heater cre-

ates warm air currents. These

currents move heat to wall sur-

faces next to heater. Installing

heater next to vinyl or cloth wall

coverings or operating heater where impurities (such as, but not limited to, tobacco smoke, aromatic candles, cleaning uids, 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 benecial, installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture. See Air for Combustion and Ventilation, page 6.

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.

WARNING: This appliance

is equipped for (natural or propane/LP) gas. Field conversion is not permitted.

INSTALLATION AND CLEARANCES

FOR VENT-FREE OPERATION

WARNING: Maintain the

minimum clearances. If you can, provide greater clearances from oor, ceiling and adjoining wall.

Minimum Fireplace Clearance to Combustible Materials

Side Wall - 16", Ceiling - 42", Floor - 5"

LOG SIZING REQUIREMENTS

Minimum Firebox Size Center

Log Size Height Depth

18" 17" 14" 24" 20" 24" 17" 14" 28" 22"

*Measured at 14" depth

Carefully follow the instructions below. This will ensure safe installation into a masonry, UL127listed manufactured replace or listed vent-free rebox enclosure.

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 replace cabinet (see Figure 4).

Note: When installing your gas logs into

a man uf actur ed fireb ox , foll ow fir ebox manufacturer’s instructions for minimum clearances to combustible materials.

Clearances from the top of the replace opening to the ceiling should not be less than 42".

Front

Width

Rear* Width

NOTICE: Nonthermostat con-

trolled heaters may be used as a vented product. If so, you must

always run heater with chimney

ue damper open. If running heater with damper open, noncombustible material above fireplace opening is not needed. Go to In-

stalling Damper Clamp Accessory for Vented Operation, page 11.

Example

*Minimum 16 inches from Side Wall

Figure 4 - Minimum Clearance for

Combustible to Wall

111826-01G 9

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Page 10

Minimum NonCombustible Material

Minimum NonCombustible Material Height

Distances to Underside of Mantel

Top of Fireplace Opening

Underside of Mantel Shelf

12"

(A)

18"

14"

20"

17"

22"

19"

24"

20"

All minimum distances are in inches

Log Set 24" Models

18" Model

10"

Mantel Shelf

INSTALLATION

Heat Resistant Material

(A)

Minimum NonCombustible Material

8" Min.

12" 15" 18"

All minimum distances are in inches

Log Set

18" and 24" Models

20"

2 1/2"

10"

12"

Distances to Underside of Mantel

Hood (GA6050, GA6052 or GA6053)

Top of Fireplace Opening

Underside of Mantel Shelf

Mantel Shelf

Continued

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 informa-

tion below.

You must have noncombustible material(s) above replace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2" 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 replace hood accessory (24" models only). See Figure 5 for minimum clearances.

Noncombustible Material Distance (A)

12" or more Noncombustible material OK.

Between 8" and 12"

Less than 8" Non comb u stib l e mate rial

Requirements for Safe

Installation

24" Model: Install replace

hood accessory (GA6050, GA 6052 or GA605 3, see Accessories, page 25). 18" Model: Noncombustible material OK

must be extended to at least 8". See Between 8" and 12", above. If you cannot extend ma ter ial, you mu st op er-

ate heater with ue damper

open.

If Using Mantel

You must have noncombustible material(s) above the replace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2" 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 replace hood accessory. Even if noncombustible material is more than 12", you may need the hood accessory to deect heat away from your mantel shelf (24" models only). See Figures 5, 6 and 7 for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Dmanper Clamp Accessory for Vented Operation, page 11.

Figure 6 - Minimum Mantel Clearances

Without Using Hood

Figure 5 - Heat Resistant Material (Slate,

Marble, Tile, etc.) Above Fireplace

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Figure 7 - Minimum Mantel Clearances

When Using Hood

111826-01G10

Page 11

INSTALLATION

14" Min.

Combustible Material

Hearth

5" Min.

Combustible Material

Continued

MANTEL CLEARANCES

In addition to meeting noncombustible material clearances, you must also meet required clearances between replace openings and mantel shelf on each side of the replace. 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 replace opening, a hood is not required (see Figure 6, page 10).

Determining Minimum Mantel Clearance When using a Hood

If minimum clearances in Figure 6, page 10 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, page 10 when using hood.

NOTICE: Surface temperatures of adjacent walls and mantels become hot during operation. Walls and mantels above the rebox 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 ue damper open

• raise the mantel to an acceptable height

• remove the mantel

FLOOR CLEARANCES

A. If installing appliance on the oor level, you

must maintain the minimum distance of 14" to combustibles (see Figure 8).

B. If combustible materials are less than 14" to

the replace, you must install appliance at least 5" above the combustible ooring (see Figure 9).

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111826-01G 11

Figure 8 - Minimum Fireplace Clearances

If Installed at Floor Level

Figure 9 - Minimum Fireplace Clearances

Above Combustible Flooring

INSTALLING DAMPER CLAMP

ACCESSORY FOR VENTED

OPERATION

Note: When used as a vented decorative appliance, unit must be installed only in a solid fuel burning replace with a working ue and constructed of noncombustible material.

If your heater is a non-thermostatically-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 replace 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 apply to you, you must permanently open chimney ue damper. You must install the damper clamp as accessory (to order (see Accessories, page 25). This will insure vented operation (see Figure 10, page 12). The damper clamp will keep damper open. Installation instructions are included with clamp accessory.

See chart in Figure 10, page 12, for minimum permanent ue opening will be maintained at all times.

Page 12

INSTALLATION

Continued

Area of Various

Standard Round Flues

Diameter Area

5" 20 sq. in. 6" 29 sq. in. 7" 39 sq. in. 8" 51 sq. in.

Damper Clamp

Damper

Masonry Fireplace Manufactured

Figure 10 - Attaching Damper Clamp

Chimney

Height

6' to 15' 39 sq. in.

15' to 30' 29 sq. in.

INSTALLING HEATER ASSEMBLY

CAUTION: Do not remove the

data plates attached to the heater base assembly. The data plates contain important warranty and safety information.

Minimum

Permanent

Flue

Opening

Damper

Damper Clamp

Fireplace

CAUTION: Do not pick up

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

IMPORTANT: Make sure the heater burner is level. If heater is not level, heater will not work properly.

Installation Items Needed

• control cover kit (provided with heater)

• approved exible gas hose (provided) (if al-

lowed by local codes)

• sealant (re sistant to propane/LP gas, not

provided)

• pipe wrench

Note: Install optional remote control accessories (see Accessories, page 25) before installing gas log heater.

1. Apply pipe joint sealant lightly to male threads of gas tting (not provided). Connect approved exible gas hose to inlet side of gas control (see Figure 11). IMPORTANT: Hold gas tting with wrench when connecting exible gas hose.

Position heater assembly in replace.

3. Connect to gas supply. See Connecting to Gas Supply.

Flexible Gas Hose (if allowed by local codes)

Gas Control

WARNING: You must secure

this heater o replace oor. If

not, heater will move when you

adjust controls. Moving heater may cause a gas leak.

WARNING: If installing in a sunken replace, special care is needed. You must raise the replace oor to allow access to heater control panel. This will insure adequate air ow and guard against sooting and controls being damaged. Raise replace oor with noncombustible material. Make sure material is secure.

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Figure 11 - Attaching Flexible Gas Hose

to Heater Gas Regulator

CONNECTING TO GAS SUPPLY

WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator.

WARNING: A qualied service person must connect heater to gas supply. Follow all local codes.

111826-01G12

Page 13

INSTALLATION

Continued

CAUTION: Never connect

propane/LP replace directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the

For propane/LP units, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressure, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 12. Pointing the vent down protects it from freezing rain or sleet.

external regulator between the heater and propane/LP supply.

CAUTION: Use only new, black iron or steel pipe. Inter-

WARNING: Never connect

natural gas replace to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

Installation Items Needed

Before installing heater, make sure you have the items listed below.

• external regulator (for propane/LP units only, supplied by installer)

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• equipment shutoff valve *

• test gauge connection *

• sediment trap

• tee joint

• pipe wrench

• approved exible gas line with gas connector (if allowed by local codes) (provided)

* A CSA design-certied equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certied equipment shutoff valve from your dealer. See Accessories, page 25.

Propane/LP Supply Tank

External Regulator

Vent Pointing Down

Figure 12 - External Regulator With Vent

111826-01G 13

Pointing Down

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nally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of volume will occur.

Installation must include an equipment shutoff valve, union and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 13).

IMPORTANT: Install equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance.

To Gas Control

Approved Flexible Gas Hose (if allowed by local codes)

3" Minimum

Figure 13 - Gas Connection

* Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 25.

** Minimum inlet pressure for purpose of input adjustment.

CSA Design-Certied

Equipment Shutoff Valve With 1/8" NPT Tap*

Natural Gas

From Gas Meter

(5" W.C.** to 10.5"

W.C. Pressure)

Propane/LP Gas

From External

Regulator

(11" W.C.** to

14" W.C.

Pressure)

Cap Pipe Tee Nipple Joint

Sediment Trap

Page 14

INSTALLATION

Continued

Check your building codes for any special requirements for locating equipment shutoff valve to replaces.

Apply pipe joint sealant lightly to male NPT threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.

WARNING: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

We recommend that you install a sediment trap in supply line as shown in Figure 13, page 13. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater

may not run properly.

CAUTION: Avoid damage to gas control. Hold gas control with wrench when connecting it to gas piping and/or ttings.

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping

and connections, internal and external to unit, for leaks after

installing or servicing. Correct all leaks at once.

WARNING: Never use an

open ame to check for a leak. Apply a noncorrosive leak detection uid to all joints. Bubbles forming show a leak. Correct all leaks at once.

CAUTION: Make sure exter-

nal regulator has been installed between propane/LP supply and heater. See guidelines un-

der Connecting to Gas Supply,

page 12.

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)

1. Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater regulator.

2. Cap off open end of gas pipe where equipment shutoff valve was connected.

3. Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air.

4. Check all joints of gas supply piping system. Apply noncorrosive leak detection uid to all joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Reconnect heater and equipment shutoff valve to gas supply. Check reconnected ttings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1. Close equipment shutoff valve (see Figure 14).

2. Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air.

3. Check all joints from gas meter to equipment shutoff valve for natural gas or propane/LP supply to equipment shutoff valve for propane/LP (see Figure 15 or 16, page 15). Apply noncorrosive leak detection uid to all joints. Bubbles forming show a leak.

4. Correct all leaks at once.

Equipment Shutoff Valve

Open

Figure 14 - Equipment Shutoff Valve

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Closed

111826-01G14

Page 15

INSTALLATION

Continued

PRESSURE TESTING HEATER GAS

CONNECTIONS

1. Open equipment shutoff valve (see Figure 14, page 14).

2. Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve.

3. Make sure control knob of heater is in the OFF position.

4. Check all joints from equipment shutoff valve to control valve (see Figure 15 or 16). Apply noncorrosive leak detection uid to all joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Light heater (see Operating Heater). Check all other internal joints for leaks.

7. Turn off heater (see To Turn Off Gas to Appli- ance, page 17).

Equipment Shutoff Valve

Gas Meter

Control Valve Location

Figure 15 - Checking Gas Joints for

Propane/LP Supply Tank

Natural Gas

Equipment Shutoff Valve

OPERATING HEATER

FOR YOUR SAFETY

READ BEFORE LIGHTING

WARNING: If you do not fol-

low these instructions exactly,

a re or explosion may result causing property damage, personal injury or loss of life.

A. This appliance has a pilot which must be

lighted by hand. When lighting the pilot, follow these instructions exactly.

B. BEFORE LIGHTING smell all around the

appliance area for gas. Be sure to smell next

to the oor because some gas is heavier than air and will settle on the oor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electric switch; do not use any phone in your building.

• Immediately call your gas supplier from a neig h bor ’s phon e. Fo llo w the gas supplier’s instructions.

• If you cannot reach your gas supplier, call

the re department.

C. Use only your hand to push in or turn the

gas control knob. Never use tools. If the

knob will not push in or turn by hand, don’t try to repair it, call a qualied service technician or gas supplier. Force or attempted

repair may result in a re or explosion.

D. Do not use this appliance if any part has

been under water. Immediately call a

qualied service technician to inspect the

appliance and to replace any part of the control system and any gas control which has been under water.

Control Valve Location

Figure 16 - Checking Gas Joints for

111826-01G 15

Propane/LP Gas

www.desatech.com

Page 16

OPERATING HEATER

Continued

LIGHTING

INSTRUCTIONS

WARNING:

• If replace has glass doors, never operate this heater with glass doors closed. If you op-

erate heater with doors closed,

heat buildup inside replace will cause glass to burst. Make sure there are no obstructions across openings of replace.

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

NOTICE: During initial operation of new heater, burning logs will give off a paper-burning smell. Orange ame will also be present. Open damper or window to vent smell. This will only last a few hours.

NOTICE: During initial operation of new heater, metallic components may emit an odor as paint and assembly compounds are heated and cure. Be sure to provide adequate fresh air if odors are detected.

Note: Home owners generally prefer to operate their heater with the chimney damper closed. This will put all the heat into the room.

However, there may be times you will desire the full ames of the HI heat setting but will nd the heat output excessive. You can open the chimney damper (if you have one) fully or

partially to release some of the heat.

WARNING: Damper handle will be hot if heater has been running.

1. STOP! Read the safety information on page

15.

2. Make sure equipment shutoff valve is fully

open.

3. Set selector switch in the OFF position.

4. Press in and turn control knob clockwise to the OFF position (see Figure 17,

page 17).

WARNING: Burners will come on automatically within one minute when the selector

switch is in the ON position after the pilot is lit.

5. Wait ve (5) minutes to clear out any gas. Then smell for gas, including near the oor.

If you smell gas, STOP! Follow “B” in the safety information, page 15. If you don’t smell gas, go to the next step.

6. Press in and turn control knob counterclockwise to the PILOT position.

Press in control knob for ve (5) seconds (see Figure 17, page 17).

Note: You may be running this heater for

the rst time after hooking up to gas supply. If so, the control knob may need to be pressed in for 30 seconds or more. This will allow air to bleed from the gas system.

7. With control knob pressed in, press ignitor button. This will light pilot. The pilot is attached to the front burner. If needed, keep pressing ignitor button until pilot lights.

Note: If pilot does not stay lit, contact a

qualied service person or gas supplier for

repairs. Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedure, page 17.

8. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.

• If control knob does not pop out when

released, contact a qualied service person

or gas supplier for repairs.

Note: If pilot goes out, repeat steps 4

through 8.

9. Slightly push in and turn control knob counterclockwise to the ON position.

10. Wait one minute and switch selector switch to the ON position to light burners.

11. Set ame adjustment knob to any level

between HI and LO.

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111826-01G16

Page 17

OFF REMOTE ON

AUTO

OFF

OPERATING HEATER

AUTO

OFF

Continued

CAUTION: Do not try to ad-

just heating levels by using the equipment shutoff valve.

3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow steps 9 through 11, Lighting Instructions, page 17.

WARNING: Make sure selec-

tor switch is in to OFF position

when you are away from home for long periods of time. Appliance will come on automatically with selector switch in the ON

position.

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1. Turn control knob clockwise to the OFF position.

2a. Set selector switch in the OFF position. 2b. If Using Optional Hand-Held Remote:

Set selector switch in the OFF position to

prevent draining battery.

Shutting Off Burner Only (pilot stays lit)

You may shut off the burners and keep the pilot lit by doing one of the following:

1. Turn control knob clockwise to the PILOT position.

2. Use remote control manual OFF button.

3. Set selector switch in the OFF position.

Control Knob

Selector Switch

Propane/LP Natural

Figure 18 - Pilot (Remote Shown)

REMOTE CONTROL

OPERATION - OPTIONAL

1. After lighting, let pilot ame burn for about

one minute. Turn control knob to ON position. Adjust ame adjustment knob anywhere between HI and LO. Set toggle selector switch to AUTO. Slide remote selector switch to REMOTE position (see Figure 19). Note: The burner may light if hand-held remote was on when selector switch was last turned off. You can now turn burner on and off with hand-held remote control unit.

IMPORTANT: Do not leave the selector

switch in the REMOTE or ON position when the pilot is not lit. This will drain the battery.

2. Press ON/OFF button to turn burners on and off. When turning burners off, the pilot will remain lit.

IMPORTANT: Be sure to press ON/OFF

buttons on hand-held remote control unit for up to 3 seconds to assure proper operation.

Control Knob

Remote Selector Switch

Ignitor Button

Flame Adjustment Knob

Figure 17 - Control Knob and Ignitor

Button Locations

MANUAL LIGHTING

PROCEDURE

1. Follow steps 1 through 6 under Lighting Instructions, page 16.

2. Depress control knob and light pilot with match.

111826-01G 17

www.desatech.com

Ignitor Button

Figure 19 - Control Knob and Ignitor

Button Locations for Remote Control

Remote Control Specications

Batteries: (See instructions with remote for

removing and installing batteries) Transmitter requires 12V (A-23) and 3V button

cell for LCD (both included) Remote receiver requires 4 AA (1.5V) alkaline

batteries (included)

Operating Frequency: 303.875 MHz

Flame Adjustment Knob

Selector Switch in AUTO Position

Page 18

INSPECTING BURNERS

Check pilot ame pattern and burner ame patterns often.

PILOT FLAME PATTERN

Figure 20 shows a correct pilot ame pattern. Figure 21 shows an incorrect pilot ame pattern. The incorrect pilot flame is not touching the thermocouple. When the thermocouple cools, the heater will shut down.

If pilot ame pattern is incorrect, as shown in Figure 21

• turn heater off (see To Turn Off Gas to Appli-

ance, above or page 17)

• see Troubleshooting, page 20

Note: The pilot ame on natural gas units will have a slight curve, but ame should be blue and have no yellow or orange color.

Pilot Burner

BURNER FLAME PATTERN

Figure 22 shows correct burner ame pattern.

NOTICE: Do not mistake orange ames with yellow tipping. Dirt or other ne particles are burned by heater, causing brief patches of orange ame.

If burner ame pattern is incorrect, as shown in Figure 23

• turn appliance off (see To Turn Off Gas to Ap- pliance, page 17

• see Troubleshooting, page 20

Yellow Flames with Orange Streaks

Thermocouple

Figure 20 - Correct Pilot Flame Pattern

(Your Pilot May Differ from Pilots Shown)

Thermocouple

Figure 21 - Incorrect Pilot Flame Pattern

(Your Pilot May Differ from Pilots Shown)

Thermocouple

Pilot Burner

Thermocouple

Figure 22 - Correct Burner Flame Pattern

Dark Orange Flames

Figure 23 - Incorrect Burner Flame

Pattern

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111826-01G18

Page 19

CLEANING AND

MAINTENANCE

WARNING: Turn off heater

and let cool before cleaning.

CAUTION: You must keep con-

trol areas, burner and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualied service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.

WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.

4. Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint or pet hair with a soft cloth or vacuum cleaner nozzle.

5. Blow air into the primary air holes on the injector holder.

6. In case any large clumps of dust have now been pushed into the burner repeat steps 2 and 3.

Port Slots

Burner Tube

Primary Air Inlet Opening (at Bottom)

Figure 24 - Injector Holder on Outlet

Burner Tube

Injector Holder

Injector

BURNER INJECTOR HOLDER AND

PILOT AIR INLET HOLE

The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning ame. Keep these holes clear of dust, dirt, lint and pet hair. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualied service person.

We also recommend that you keep the burner tube clean and free of dust and dirt. We recommend using compressed air no greater than 30 PSI. Your local computer store, hardware store or home center may carry compressed air in a can. You can use a vacuum cleaner in the blow position. If using compressed air in a can, please follow the directions on the can. If you don't follow directions on the can, you could damage the pilot assembly.

1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.

2. Inspect burner and primary air inlet holes on injector holder for dust and dirt (see Figure 24 and 25).

3. Blow air through the ports/slots and holes in the burner.

Pilot Air Inlet Hole

Figure 25 - Pilot Air Inlet Hole (Your Pilot

May Differ from Pilots Shown)

111826-01G 19

www.desatech.com

Page 20

TROUBLESHOOTING

WARNING: Turn off heater and let cool before servicing. Only a

qualied service person should service and repair heater.

CAUTION: Never use a wire, needle or similar object to clean

ODS/pilot. This can damage ODS/pilot unit.

Note: All troubleshooting items are listed in order of operation.

OBSERVED PROBLEM

When ignitor button is pressed, there is no spark at ODS/pilot

When ignitor button is pressed, there is spark at ODS/pilot but

no ignition

POSSIBLE CAUSE

1. Ignitor electrode not connected

to ignitor cable

2. Ignitor cable pinched or wet

3. Electronic ignitor battery is weak

4. Broken ignitor cable

5. Bad electronic ignitor

6. Ignitor electrode positioned wrong or broken

1. Gas supply turned off or equipment shutoff valve closed

2. Control knob not in PILOT

position

3. Control knob not pressed in while in PILOT position

4. Air in gas line s when in-

stalled

5. Depleted gas supply (propane/ LP only)

6. ODS/pilot is clogged

7. Gas regulator setting is not

correct

REMEDY

1. Reconnect ignitor cable

2. Free ignitor cable if pinched by any metal or tubing. Keep

ignitor cable dry

3. Replace battery

4. Replace ignitor cable

5. Replace electronic ignitor

6. Replace pilot assembly

1. Turn on gas supply or open equipment shutoff valve

2. Turn control knob to PILOT

position

3. Press in control knob while in PILOT position

4. C o n t i nu e h o l d i ng d o w n co n trol kn ob. Rep e at igniting operation until air is removed

5. Contact local propane/LP gas

company

6. Clean ODS/pilot (see Cleaning and Maintenance, page 19) or

replace ODS/pilot assembly

7. Replace gas regulator

www.desatech.com

111826-01G20

Page 21

OBSERVED PROBLEM

ODS/pilot lights but ame goes out when control knob is re-

leased

TROUBLESHOOTING

Continued

POSSIBLE CAUSE

Control knob not fully pressed in

2. Control knob not pressed in long enough

3. Sa fety in te rl oc k system has

been triggered

4. Equipment shutoff valve not fully open

5. Pilot ame not touching thermocouple, which allows thermocouple to cool, cau si ng pilot flame to go out. This problem could be caused by one or both of the following:

A) Low gas pressure B) Dirty or partially clogged

ODS/pilot

6. The rmo c oup le co nne c tio n loose at control valve

7. Thermocouple damaged

8. Control valve damaged

REMEDY

1. Press in control knob fully

2. After ODS/pilot lights, keep control knob pressed in 30

seconds

3. Wait one minute for safety interlock system to reset. Repeat

ignition operation

4. Fully open equipment shutoff valve

5. A) Contact local natural or

propane/LP gas company

B) Cle a n ODS/ p ilot (s ee

Cleaning and Maintenance, page 19) or replace ODS/pilot

assembly

6. Hand tighten until snug, then tighten 1/4 turn more

7. Replace pilot assembly

8. Replace control valve

Burner does not light after ODS/

pilot is lit

Delayed ignition of burner

Burner backring during combustion

111826-01G 21

1. Inlet gas pressure is too low

2. Burner orice clogged

3. Mislocated crossover tube

4. R e m o t e s e l e ctor in OFF

position

5. Wire disconnected from gas

control

1. Manifold pressure is too low

2. Burner orice clogged

3. Mislocated crossover tube

1. Burner orice is clogged or

damaged

2. Damaged burner

3. Gas regulator defective

www.desatech.com

1. Contact local natural or propane/LP gas company

2. Clean burner (see Cleaning and Maintenance, page 19)

or replace burner orice

3. Con tac t qua lifi ed se rvi ce

person

4. Put remote selector in ON

position

5. See Wiring Diagram, page 24

1. Contact local natural or pro-

pane/LP gas company

2. Clean burner (see Cleaning and Maintenance, page 19)

or replace burner orice

3. Con tac t qua lifi ed se rvi ce

person

1. Clean burner (see Cleaning and Maintenance, page 19)

or replace burner orice

2. Replace damaged burner

3. Replace gas regulator

Page 22

OBSERVED PROBLEM

Orange ame in burner during burner combustion

TROUBLESHOOTING

Continued

POSSIBLE CAUSE

1. Not enough air

2. Gas regulator defective

REMEDY

1. Ch ec k bur ne r for dirt and debris. If found, clean burner (see Cleaning and Mainte- nance, page 19)

2. Replace gas regulator

Slight smoke or odor during initial

operation

Heater produces a whistling noise when burner is lit

White powder residue forming within burner box or on adjacent walls or furniture

Moisture/condensation noticed on windows

Remote does not function

Heater produces a clicking/ticking noise just after burners are lit or shut off

1. Residues from manufacturing processes and logs curing

1. Turning control knob to HI position when burner is cold

2. Air in gas line

3. Air pass ageways on heater blocked

4. Dir ty or parti all y cl ogged burner orice

1. Wh en heat ed , vapors from furniture polish, wax, carpet cleaners, etc. may turn into white powder residue

1. Not enough combustion/venti-

lation air

1. Battery is not installed. Battery power is low

1. Metal expanding while heating or contracting while cooling

1. Problem will stop after a few hours of operation

1. Tu rn co ntr ol kn ob to LO position and let warm up for a minute

2. Opera te burner until air is removed from line. Have gas line checked by local natural

or propane/LP gas company

3. Obs erve mi ni mum ins tal lation clearances (see pages 9 through 11)

4. Clean burner (see Cleaning and Maintenance, page 19) or replace burner orice

1. Turn heater off when using furniture polish, wax, carpet cleaners, or similar products

1. Refer to Air for Combustion and Ventilation requirements (page 6)

1. Replace batteries in receiver

and hand-held remote control

1. This is common with most heaters. If noise is excessive, co n tact qu alif i ed serv i ce

person

www.desatech.com

111826-01G22

Page 23

TROUBLESHOOTING

Continued

WARNING: 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 re department.

IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These fumes may mix with combustion air and create odors. These odors will disappear over time.

OBSERVED PROBLEM

He ate r p r odu ces unw ant e d

odors

Heater shuts off in use (ODS operates)

Gas odor even when control knob is in OFF position

Gas odor during combustion

POSSIBLE CAUSE

1. Heater burning vapors from paint, hair spray, glues, cleaners, chemicals, new carpet, etc. (See IMPORTANT state- ment above)

2. Low fuel supply (propane/LP only)

3. Gas leak . See Warnin g

statement at top of page

1. Not enough fresh air is available

2. Low line pressure

3. O D S/ pi l ot i s pa r ti a ll y

clogged

1. Gas leak . See Warnin g statement at top of page

2. Control valve or gas control defective

1. Foreign matter between control valve and burner

2. Gas leak . See Warnin g

statement at top of page

REMEDY

1. Open win do w to vent il ate room. Stop using odor causing products while heater is running

2. Rell supply tank (propane/LP only)

3. Locate and correct all leaks (see Checking Gas Connec- tions, page 14)

1. Open window and/or door for ventilation

2. Contact local natural or pro-

pane/LP gas company

3. Clean ODS/pilot (see Cleaning and Maintenance, page 19)

1. Locate and correct all leaks (see Checking Gas Connec- tions, page 14)

2. Replace control valve or gas

control

1. Take apart gas tub in g and remove foreign matter

2. Locate and correct all leaks (see Checking Gas Connec- tions, page 14)

111826-01G 23

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Page 24

SPECIFICATIONS

Thermopile

Models VF-18N-PDG and VF-18N-BTB

• Input Rating: 24,000/36,000 Btu/Hr

• Fuel: Natural Gas

• Ignition: Electronic

• Manifold Pressure: 3.5" W.C.

• Inlet Gas Pressure (in. of water): Max. - 10.5", Min. - 5.0*

• Shipping Weight: 32 lbs.

Models VF-18P-PDG and VF-18P-BTB

• Input Rating: 24,000/36,000 Btu/Hr

• Fuel: Propane/LP Gas

• Ignition: Electronic

• Manifold Pressure: 10" W.C.

• Inlet Gas Pressure (in. of water): Max.- 14", Min. - 11"*

• Shipping Weight: 32 lbs.

Models VF-24N-PDG and VF-24N-BTB

• Input Rating: 25,000/39,000 Btu/Hr

• Fuel: Natural Gas

• Ignition: Electronic

• Manifold Pressure: 3.5" W.C.

• Inlet Gas Pressure (in. of water): Max. - 10.5", Min. - 5.0*

• Shipping Weight: 34 lbs.

Models VF-24P-PDG and VF-24P-BTB

• Input Rating: 25,000/39,000 Btu/Hr

• Fuel: Propane/LP Gas

• Ignition: Electronic

• Manifold Pressure: 10" W.C.

• Inlet Gas Pressure (in. of water): Max.- 14", Min. - 11"*

• Shipping Weight: 34 lbs. * For purpose of input adjustment

WIRING DIAGRAM

SERVICE HINTS

When Gas Pressure Is Too Low

• pilot will not stay lit

• burners will have delayed ignition

• heater will not produce specied heat

• (for propane/LP units) propane/LP gas supply may be low

You may feel your gas pressure is too low. If so, contact your local propane/LP or natural gas supplier.

TECHNICAL SERVICE

You may have further questions about installation, operation, or troubleshooting. If so, contact DESA’s Technical Service Department at 1-866-672-6040. When calling please have your model and serial numbers of your appliance ready.

You can also visit DESA’s technical services web site at www.desatech.com.

REPLACEMENT PARTS

Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.

PARTS UNDER WARRANTY

Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA’s Technical Service Department at 1-866-672-6040.

When calling DESA, have ready

• your name

• your address

• model and serial numbers of your appliance

• how appliance was malfunctioning

• type of gas used (propane/LP or natural gas)

• purchase date

Usually, we will ask you to return the part to the factory.

PARTS NOT UNDER WARRANTY

Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA at 1-866-672-6040 for referral information.

When calling DESA, have ready

• model number of your appliance

• the replacement part number

www.desatech.com

111826-01G24

Page 25

ACCESSORIES

Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual.

EQUIPMENT SHUTOFF VALVE GA5010

For all models. Equipment shutoff valve with 1/8" NPT tap. Fits 1/2" NPT pipe.

FIREPLACE HOOD

Black - GA6050 Brass - GA6052 Antique Brass - GA6053

For all models. Helps deect heat away from mantel or wall above replace. Fits openings 28" to 48" wide.

RECEIVER AND HAND-HELD

REMOTE CONTROL KIT - 112806-01

(Not Shown)

For PDG models. Allows the gas log heater to be turned on and off by using a hand-held remote control. This remote comes installed in BTB models.

REMOTE CONTROL RECEIVER

BRACKET - 112806-02 (Not Shown)

For PDG models only. Used for mounting remote control receiver to unit base.

WALL-MOUNT ON/OFF SWITCH GWMS2 (Not Shown)

For all models. Allows the gas log heater to be turned on and off with a wall switch. This switch is included with al models.

VENT-FREE LOGMATE® FIREBOXES

(Not Shown)

Available in 32", 36", and 42" models. Circulating reboxes feature louvers and an optional blower. Non-circulating, smooth face models are ideal for custom trim applications such as stone or marble.

FB32C (CIRCULATING), FB32NC (NON-CIRCULATING) SERIES VENT-

FREE FIREBOX

(Not Shown)

For all models.

FB36CA, FB42C SERIES (CIRCULATING), FB36NCA, FB42NC SERIES (NON-CIRCULATING) VENT-

FREE FIREBOX

(Not Shown)

For all models.

DAMPER CLAMP - GA6080

(Not Shown)

For all models. Permanently opens chimney ue damper for vented operation. This is included with all models.

LAVA ROCK - GA6060

(Not Shown)

For all models. Order when additional rock is desired. (1.8 lb. bag)

CLEANING KIT - GCK

(Not Shown)

For all models. Your vent-free gas appliance requires regular cleaning and maintenance to prevent performance problems. This kit gives you the tools and instructions to make it easy to clean all critical areas of your appliance.

INFORMATION VIDEO - 108917-01

For all models. A care and maintenance video is available by calling 1-866-672-6040.

111826-01G 25

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Page 26

ILLUSTRATED PARTS BREAkDOWN

Installed in BTB Models Only

MODELS VF-18N-PDG, VF-18P-PDG, VF-18N-BTB AND VF-18P-BTB

www.desatech.com

111826-01G26

Page 27

This list contains replaceable parts used in your replace. When ordering parts, follow the instructions

PARTS LIST

listed under Replacement Parts on page 24 of this manual.

KEY

NO. PART NO. DESCRIPTION QTY.

1 111808-01 Grate Assembly • • • • 1 2 111794-03 Valve-Bracket Assembly • • 1

111794-04 Valve-Bracket Assembly • • 1

3 111834-01 Log Assembly • • 1

111835-01 Log Assembly • • 1 4 111803-05 Right Burner Bracket • • • • 1 5 111803-04 Left Burner Bracket • • • • 1 6 111800-01 Screw • • 19

111800-01 Screw • • 15 7 111817-01 Flextube 3/8" • • • • 1 8 14396 Adapter • • • • 1 9 111804-04 Burner • • 1

111804-03 Burner • • 1 10 111819-04 Elbow Orice • • 1

111819-05 Elbow Orice • • 1 11 111807-01 Valve NG • • 1

111807-02 Valve LP • • 1 12 116791-01 Valve Bracket • • • • 1 13 111435-01 Electronic Ignitor • • • • 1 14 103784-01 Control Knob Extension • • • • 1 15 103784-02 Control Knob Extension • • • • 1 16 099998-01 Fan Switch • • • • 1 17 112806-01 Remote Control Assembly • • 1 18 112806-02 Remote Bracket • • 1 19 111817-02 Flextube 3/16" • • • • 1 20 111796-02 Pilot Shield • • • • 1 21 112376-01 Pilot • • 1

103778-01 Pilot • • 1 22 111828-01 Compression Nut/Sleeve • • • • 1 23 111803-03 NG Air Shutter • • 1 24 111824-01 Compression Nut/Sleeve • • • • 1 25 111816-01 Screw • • • • 4

PARTS AVAILABLE NOT SHOWN

100563-01 Warning Plate • • • • 1

103877-01 Lighting Instruction Plate • • • • 1

100565-01 Warning Plate Fastener • • • • 1

100639-01 Caution Decal • • • • 1

GA6060 Lava Rock • • • • 1

111288-02 Gas Flex Line 18" • • • • 1

112363-01 Log Scrap Kit #1 • • • • 1

112364-01 Log Scrap Kit #2 • • • • 1

VF-18N-BTB

VF-18P-BTB

VF-18N-PDG

VF-18P-PDG

111826-01G 27

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Page 28

ILLUSTRATED PARTS BREAkDOWN

Installed in BTB Models Only

MODELS VF-24N-PDG, VF-24P-PDG, VF-24N-BTB AND VF-24P-BTB

www.desatech.com

111826-01G28

Page 29

This list contains replaceable parts used in your replace. When ordering parts, follow the instructions

PARTS LIST

listed under Replacement Parts on page 24 of this manual.

KEY

NO. PART NO. DESCRIPTION QTY.

1 111793-01 Grate Assembly • • 1 2 111794-06 Valve-Bracket Assembly • • 1

111794-02 Valve-Bracket Assembly • • 1

3 111827-01 Log Assembly • • 1

111802-01 Log Assembly • • 1 4 111803-02 Right Burner Bracket • • • • 1 5 111803-01 Left Burner Bracket • • • • 1 6 111800-01 Screw • • 19

111800-01 Screw • • 15 7 111817-01 Flextube 3/8" • • • • 1 8 14396 Adapter • • • • 1 9 111804-01 Burner • • 1

111804-02 Burner • • 1 10 111819-01 Elbow Orice • • 1

111819-03 Elbow Orice • • 1 11 111807-01 Valve NG • • 1

PARTS AVAILABLE NOT SHOWN

100563-01 Warning Plate • • • • 1

103877-01 Lighting Instruction Plate • • • • 1

100565-01 Warning Plate Fastener • • • • 1

100639-01 Caution Decal • • • • 1

GA6060 Lava Rock • • • • 1

111288-02 Gas Flex Line 18" • • • • 1

112363-01 Log Scrap Kit #1 • • • • 1

112364-01 Log Scrap Kit #2 • • • • 1

VF-24N-BTB

VF-24P-BTB

VF-24N-PDG

VF-24P-PDG

111826-01G 29

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Page 30

NOTES

_____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________

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111826-01G30

Page 31

NOTES

111826-01G 31

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Page 32

WARRANTy INFORMATION

111826 01

kEEP THIS WARRANTy

Model

Serial No.

Date Purchased

Always specify model and serial numbers when communicating with the factory.

We reserve the right to amend these specications at any time without notice. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied.

LIMITED WARRANTy

VENT-FREE GAS LOG HEATERS

DESA warrants this product to be free from defects in materials and components for four (4) years from the date of rst purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions. To make a claim under this warranty the Bill of Sale or cancelled check must be presented.

This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater to proper operating condition and an allowance for labor when provided by a DESA Authorized Service Center. Warranty part(s) MUST be obtained through authorized dealers of this product and/or DESA who will provide original factory replacement parts. Failure to use original factory replacement parts voids this warranty. The heater MUST be installed by a qualied installer in accordance with all local codes and instructions furnished with the unit.

This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. Travel, diagnostic cost, labor, transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner.

TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR (4) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND DESA'S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential damages, so the above limitation on implied warranties or exclusion or limitation on damages may not apply to you.

This warranty gives you specic legal rights and you may also have other rights that vary from state to state.

For information about this warranty write:

2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com

NOT A UPC

111826-01 Rev. G 02/06

Desa VF-24N-BTB User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETy INFORMATION

UNPACkING

LOCAL CODES

PRODUCT FEATURES

INSTALLATION

OPERATING HEATER

INSPECTING BURNERS

TROUBLESHOOTING

SPECIFICATIONS

WIRING DIAGRAM

SERVICE HINTS

TECHNICAL SERVICE

REPLACEMENT PARTS

ACCESSORIES

WARRANTy INFORMATION