Desa RFN30TA User Manual

VENT-FREE NATURAL GAS RADIANT FLAME® HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

RFN30TA

15,000 to 30,000 Btu/Hr

with Thermostat

Shown with Optional

Mantel Which Features

a Built-in Base

WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life.

— Do not store or use gasoline or other

flammable vapors and liquids in the vicinity of this or any other appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

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

• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the fire department.

— Installation and service must be performed

by a qualified installer, service agency, or the gas supplier.

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

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion must be provided. Refer to

Air For

Combustion and Ventilation

section on page 5 of this manual.

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

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

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

Save this manual for future reference.

VENT-FREE NATURAL GAS HEATER

SAFETY INFORMATION

WARNINGS

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

DANGER: Carbon monoxide

poisoning may lead to death!

Carbon Monoxide Poisoning: Early signs

of carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.

Natural Gas: Natural gas is odorless. An

odor-making agent is added to natural gas. The odor helps you detect a natural gas leak. However, the odor added to natural gas can fade. Natural 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 allow fans to blow directly into the heater. Avoid any drafts that alter burner flame patterns. Ceiling fans can create drafts that alter burner flame patterns. Altered burner patterns can cause sooting.

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

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.

Surface of heater becomes very hot when running heater. Keep children and adults away from hot surfaces to avoid burns or clothing ignition. Fireplace will remain hot for a time after shutdown. Allow surfaces to cool before touching.

Carefully supervise young children when they are in same room with heater.

Make sure screen is in place before running heater.

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

1. Use only natural gas. Do not convert heater to use different fuel type.

2. If you smell gas

• shut off gas supply

• do not try to light any appliance

• do not touch any electrical switch; do

not use any phone in your building.

• immediately call your gas supplier

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

• if you cannot reach your gas supplier,

call the fire department

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

4. This heater needs fresh, outside air ventilation to run properly . This heater has an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and Ventilation, pages 5 through 7.

5. If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.

6. T o prevent the creation of soot, follow the instructions in Cleaning and Main- tenance, page 16.

7. 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.

8. Do not run heater

• where flammable liquids or vapors

are used or stored.

• under dusty conditions.

9. Do not use heater if any part has been 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.

10. Turn of f and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater.

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

LOCAL CODES

Install and use heater with care. Follow all local codes. In the absence of local codes, use

the latest edition of The National Fuel Gas Code, ANS Z223.1, also known as NFPA 54*.

*Available from: American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

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PRODUCT IDENTIFICATION

Ignitor Button

Heater Cabinet

Log

Note:

Do not remove Lighting and Warning Plates from heater

Control Knob

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OWNER’S MANUAL

ASSEMBLY

ASSEMBLING HEATER

Tools Required:

Lighting and Warning Plates

Screen

Front Panel

• Phillips screwdriver

• 5/16" hex wrench

• slotted screwdriver

Removing Front Panel Of Heater

1. Remove two screws near bottom corners of front panel with Phillips screwdriver.

2. Pull bottom of front panel forward, then down (see Figure 2).

Figure 1 - Vent-Free Gas Log Natural Gas Space Heater

PRODUCT

UNPACKING

FEATURES

WARNING: Do not remove

SAFETY PILOT

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.

THERMOSTATIC HEAT CONTROL

This heater has a thermostat sensing bulb and a control valve. This results in the greatest heater comfort. This can also result in lower gas bills.

the metal data plates attached to the heater assembly. The data plates contain important warranty information.

1. Remove heater from carton.

2. Remove all protective packaging applied to heater for shipment.

3. Make sure your heater includes two hardware packets.

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

Figure 2 - Removing Front Panel of Heater

Installing Hood

1. Remove hood from protective tray .

2. Locate 4 black sheet metal screws from hardware pack.

3. Place hood on deflector and line up holes (see Figure 3, page 4).

Note:

Side of hood should be on the outside

flange of deflector.

Installing Log

Note:

For easier installation, lay heater on

its back.

1. With Phillips screwdriver , remove two screws holding screen in place. Remove screen.

2. Remove log from inside of deflector. Discard protective packaging.

3. Gently slide log between log retaining brackets on deflector assembly (see Figure 3, page 4). The log should fit firmly against bottom of log retaining brackets.

4. Reattach screen using two screws removed in step 1.

Continued

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VENT-FREE NATURAL GAS HEATER

ASSEMBLY

Continued

Log

Front Panel

TrussHead Screw

Brass Front Trim

Figure 3 - Assembling Heater

Sheet Metal Screw

Nut

Screw

Hood

Screen

Screw

Deflector

Burner Shield

Heater Cabinet

Log Retaining Brackets

5. Slide other end of adjusting plate/shim in slot on mitered edge of side brass trim (see Figure 5).

6. While firmly holding edges of brass trim together, tighten both set screws on the adjusting plate with slotted screwdriver.

7. Repeat steps 1 through 6 for other side.

8. Place the assembled trim on front of heater cabinet. Attach on top and sides with four brass screws included in hardware package (see Figure 6).

9. Reattach front panel to heater if you are going to mount the heater to the base. Do not reattach front panel at this time if you are going to mount heater to wall.

Set Screws

Side Brass Trim

Slot

Figure 5 - Assembling Brass Trim

Adjusting Plate

Shim

Mitered Edge

Top Brass Trim

Slot

WARNING: Always have burner shield and screen in place before operating heater. This prevents excessive temperatures on heater surfaces.

Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury.

Attaching Brass Front Trim to Front Panel

1. Locate brass front trim in brass trim package.

2. Slide the head of two truss-head screws from hardware packet into each end of brass front trim (see Figure 4).

3. Line up screws with holes in front panel (see Figure 3). Insert screws in holes. Attach nuts from inside of front panel. Tighten with wrench.

Brass Front Trim

Truss-Head Screw

Figure 4 - Attaching Brass Front Trim to Front Panel

Front Panel

Nut

Assembling and Attaching Brass Trim

1. Remove packaging from remaining three pieces of brass trim.

2. Locate four brass screws, two adjusting plates with set screws, and two shims in the hardware packet.

3. Align shim under adjusting plate as shown in Figure 5.

4. Slide one end of adjusting plate/shim in slot on mitered edge of top brass trim (see Figure 5).

Screws

Assembled Brass Trim

Figure 6 - Attaching Brass Trim to Heater

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107099

OWNER’S MANUAL

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.

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

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

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

PROVIDING ADEQUATE VENTILATION

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

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

1. Unusually Tight Construction

2. Unconfined Space

3. Confined Space The information on pages 5 through 7 will

help you classify your space and provide adequate ventilation.

Unusually Tight Construction

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

Unusually tight construction is defined as construction where:

a. walls and ceilings exposed to the

outside atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10 per pa-sec-m2) or less with openings gasketed or sealed

b. weather stripping has been

added on openable windows and doors

c. caulking or sealants are applied

to areas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings.

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

From Outdoors

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

and

, page 7

Ventilation Air

mining Fresh-Air Flow for Heater Location,

page 6.

-11

and

Deter-

Confined and Unconfined Space

The National Fuel Gas Code, ANS Z223.1 defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the unconfined space.

This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air.

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

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Continued

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VENT-FREE NATURAL GAS HEATER

AIR FOR COMBUSTION AND VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if You Have a Confined or Unconfined Space

Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between

the rooms.

1. Determine the volume of the space (length x width x height). Length x Width x Height = _________________ cu. ft. (volume of space)

Example:

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

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

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

the space can support)

Example:

3. Add the Btu/Hr of all fuel burning appliances in the space. Vent-free heater __________________ Btu/Hr Gas water heater* __________________ Btu/Hr Gas furnace __________________ Btu/Hr Vented gas heater __________________ Btu/Hr Gas fireplace logs __________________ Btu/Hr Other gas appliances* + __________________ Btu/Hr Total = __________________ Btu/Hr * Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.

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

___________________ Btu/Hr (maximum the space can support) ___________________ Btu/Hr (actual amount of Btu/Hr used)

Example:

The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:

A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin-

ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 7.

B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 7. C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.

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

Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)

2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)

Example:

Gas water heater 30,000 Btu/Hr Vent-free heater + 30,000 Btu/Hr Total = 60,000 Btu/Hr

51,200 Btu/Hr (maximum the space can support) 60,000 Btu/Hr (actual amount of Btu/Hr used)

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

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National Fuel Gas Code, ANS Z223.1, Section 5.3

or applicable local codes.

107099

Remove Door into Adjoining

Room,

Option 3

Ventilation Grills

Into Adjoining Room,

Option 2

12"

Ventilation

Grills

into Adjoining

Room,

Option 1

AIR FOR COMBUSTION AND VENTILATION

Continued

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 7). You can also remove door into adjoining room (see option 3, Figure 7). Follow the National Fuel

Gas Code, NFPA 54/ANS Z223.1, Section

5.3, Air for Combustion and Ventilation for

required size of ventilation grills or ducts.

OWNER’S MANUAL

WARNING: Rework worksheet, adding the space of the adjoining unconfined space. The combined spaces must have enough fresh air to supply all appliances in both spaces.

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, NFPA 54/ANS Z223.1, Section 5.3, Air for Combustion and Ventilation for required size of ventila-

tion grills or ducts.

IMPORTANT:

inlet or outlet air into attic if attic has a thermostat-controlled power vent. Heated air entering the attic will activate the power vent.

Do not provide openings for

Figure 7 - Ventilation Air from Inside Building

Figure 8 - Ventilation Air from Outdoors

Outlet Air

Inlet Air

Outlet Air

Inlet Air

Ventilated Attic

To Attic

Crawl

Space

Ventilated

Crawl Space

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VENT-FREE NATURAL GAS HEATER

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.

WARNING: A qualified service person must install heater. Follow all local codes.

CHECK GAS TYPE

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

INSTALLATION ITEMS

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

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• equipment shutoff valve *

• ground joint union

• test gauge connection *

• sediment trap

• tee joint

• pipe wrench * A CSA design-certified equipment shutoff

valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 21.

LOCATING HEATER

WARNING: Maintain the mini-

mum clearances shown in Figure

9. If you can, provide greater clearances from floor, ceiling, and joining wall.

You can locate heater on floor. The optional hearth base is needed. You can also install the optional decorative mantel on the heater (some mantels require hearth base).

IMPORTANT:

and hearth base specified in this manual. Purchase the optional mantel and hearth base from your dealer. See Accessories, page 21.

The heater may also be mounted on a wall. You cannot use optional mantel if mounting heater on a wall.

WARNING: Never install the

heater

• in a bedroom or bathroom

• in a recreational vehicle

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

• as a fireplace insert

• in high traffic areas

• in windy or drafty areas

CAUTION: This heater creates warm air currents. These currents move heat to wall surfaces next to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such as tobacco smoke, aromatic candles, cleaning fluids, oil or kerosene lamps, etc.) in the air exist, may discolor walls.

Only use optional mantel

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 Com- bustion and Ventilation, pages 5 through 7.

CAUTION: If you install the

heater in a home garage

• heater pilot and burner must be at least 18 inches above floor.

• locate heater where moving vehicle will not hit it.

For convenience and efficiency, install heater

• where there is easy access for operation, inspection, and service.

• in coldest part of room.

An optional fan kit is available from your dealer. See Accessories, page 21. If planning to use fan, locate heater near an electrical outlet.

CEILING

36"

6" Minimum From Sides Of Heater

Left Side

FLOOR

Figure 9 - Mounting Clearances As Viewed From Front of Heater

Minimum

Right Side

Minimum to Top Surface of Carpeting,

Tile, or Other Combustible Material

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