Desa FAS-20BB, FA-30BB, FA-20BB, FAS-30BB, FGH-30NGB User Manual

BLUE FLAME
VENT-FREE NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
FA-20BB
FAS-20BB
FA-30BB
FAS-30BB
FGH-30NGB
20,000 and 30,000
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 and ventilation air must be provided. Refer to
Air For Combustion and
Ventilation
4 of this manual.
section on page
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.
BLUE FLAME 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, persons 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 use any 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 surface to avoid burns or clothing ignition. Heater will re­main hot for a time after shut­down. Allow surface to cool be­fore touching.
Carefully supervise young chil­dren when they are in the same room with heater.
Make sure grill guard is in place before running heater.
Keep the appliance area clear and free from combustible materials, gasoline, and other flammable 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. 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 4 through 6.
5. Keep all air openings in front and bot­tom of heater clear and free of debris. This will insure enough air for proper combustion.
6. If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.
7. Do not run heater
• where flammable liquids or vapors
are used or stored
• under dusty conditions
8. 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.
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. T urn off 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 could cause pilot outage.
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OWNER’S MANUAL
PRODUCT IDENTIFICATION
Ignitor Button
Front Panel
Control Knob
Grill Guard
Glass Panel
Heater Cabinet
PRODUCT FEATURES
SAFETY DEVICE
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system requires no matches, batteries, or other sources to light heater.
THERMOSTATIC HEAT CONTROL ON THERMOSTAT MODELS FAS-20BB AND FAS30-BB
These heaters have a control valve with a thermostat sensing bulb. This results in the greatest heater comfort and may result in lower gas bills.
Figure 1 - Vent-Free Natural Gas Heater (Models FAS-20BB Shown)
LOCAL CODES
Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of 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
UNPACKING
1. Remove heater from carton.
2. Remove all protective packaging ap­plied to heater for shipment.
3. Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater.
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3
BLUE FLAME NATURAL GAS HEATER
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall not be installed in a confined space or unusually tight con­struction unless provisions are provided for adequate combus­tion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home.
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 fuel­burning 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 4 through 6 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 6x10 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
termining Fresh-Air Flow For Heater Location
and
Ventilation Air
, page 6.
, page 5.
and
-11
kg
De-
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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OWNER’S MANUAL
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 6.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6. 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 Vent-free heater + Total =
51,200 Btu/Hr (maximum the space can support) 60,000 Btu/Hr (actual amount of Btu/Hr used)
40,000 20,000 60,000
Btu/Hr Btu/Hr Btu/Hr
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
5
or applicable local codes.
Continued
BLUE FLAME NATURAL GAS HEATER
Or
Remove Door into Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
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 2). You can also remove door into adjoining room (see op­tion 3, Figure 2). 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.
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 ventilation
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.
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.
Do not provide openings for
Figure 2 - Ventilation Air from Inside Building
Outlet Air
Ventilated Attic
Outlet Air
Inlet Air
Inlet Air
Figure 3 - Ventilation Air from Outdoors
To Attic
To
Crawl
Space
Ventilated
Crawl Space
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105568
OWNER’S MANUAL
36"
2"
FLOOR
CEILING
Minimum
Minimum to Top of Carpeting, Tile, or Other Combustible Material
6" Minimum From Sides of Heater
Left Side
Right Side
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, 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 * An CSA/AGA design-certified equipment
shutoff valve with 1/8" NPT tap is an ac­ceptable alternative to test gauge connec­tion. Purchase the optional CSA/AGA de­sign-certified equipment shutoff valve from your dealer. See Accessories, page 19.
LOCATING HEATER
This heater is designed to be mounted on a wall.
WARNING: Maintain the mini-
mum clearances shown in Figure
4. If you can, provide greater clear­ances from floor, ceiling, and join­ing wall.
You can locate heater on floor, away from a wall. An optional floor mounting stand is needed. Purchase the floor mounting stand from your dealer. See Accessories, page 19.
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.
Figure 4 - Mounting Clearances As Viewed From Front of Heater
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 4 through 6.
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 19. If planning to use fan, locate heater near an electrical outlet.
105568
Continued
7
BLUE FLAME NATURAL GAS HEATER
INSTALLATION
Continued
INSTALLING HEATER TO WALL
Mounting Bracket
The mounting bracket is located on back panel of heater. It has been taped there for shipping. Remove mounting bracket from back panel.
Mounting Bracket
Figure 5 - Mounting Bracket
INSTALLING THERMOSTAT SENSING BULB -
For T-Stat Models Only
Remove clip and bulb from shipping loca­tion. Place clip and bulb into operation loca­tion (see Figure 6)
Figure 6 - Moving Thermostat Sensing Bulb
Removing Front Panel Of Heater
1. Remove two screws near bottom cor­ners of front panel.
2. Lift straight up on grill guard until it stops. Grill guard will slide up about 1/4".
3. Pull bottom of front panel forward, then down.
4. Remove cardboard packing from grill and glass.
Figure 7 - Removing Front Panel Of Heater
Methods For Attaching Mounting Bracket To Wall
Only use last hole on each end of mounting bracket to attach bracket to wall. These two holes are 16 inches apart from their centers. Attach mounting bracket to wall in one of two ways:
1. Attaching to wall stud
2. Attaching to wall anchor
Attaching To Wall Stud: This method pro-
vides the strongest hold. Insert mounting screws through mounting bracket and into wall studs.
Attaching To Wall Anchor: This method
allows you to attach mounting bracket to hollow walls (wall areas between studs) or to solid walls (concrete or masonry).
Decide which method better suits your needs. Either method will provide a secure hold for the mounting bracket.
Marking Screw Locations
1. Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level.
WARNING: Maintain minimum clearances shown in Figure 7. If you can, provide greater clear­ances from floor and joining wall.
2. Mark screw locations on wall (see Fig­ure 8).
Note:
Only mark last hole on each end of mounting bracket. Insert mounting screws through these holes only.
3. Remove tape and mounting bracket from wall.
1
/4"
10
Min.
Only Insert Mounting Screws Through Last
Adjoining Wall
Models FA-30BB, FAS-30BB, and
FGH-30NGB
1
/2"
6
Min.
Only Insert Mounting
Screws Through Last
Hole On Each End
Adjoining Wall
Models FA-20BB and FAS-20BB
Figure 8 - Mounting Bracket Clearances
17 3/8"
Hole On Each End
Floor
17 3/8"
Floor
17 1/2"
Min.
17 1/2"
Min.
8
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OWNER’S MANUAL
INSTALLATION
Continued
Attaching Mounting Bracket To Wall
Note:
Wall anchors, mounting screws, and spacers are in hardware package. The hard­ware package is provided with heater.
Attaching To Wall Stud Method
For attaching mounting bracket to wall studs
1. Drill holes at marked locations using
9/64" drill bit.
2. Place mounting bracket onto wall. Line
up last hole on each end of bracket with holes drilled in wall.
3. Insert mounting screws through bracket
and into wall studs.
4. Tighten screws until mounting bracket
is firmly fastened to wall studs.
Attaching To Wall Anchor Method
For attaching mounting bracket to hollow walls (wall areas between studs) or solid walls (concrete or masonry)
1. Drill holes at marked locations using
5/16" drill bit. For solid walls (concrete or masonry), drill at least 1" deep.
2. Fold wall anchor as shown in Figure 9.
3. Insert wall anchor (wings first) into
hole. Tap anchor flush to wall.
4. For thin walls (1/2" or less), insert red
key into wall anchor. Push red key to “pop” open anchor wings.
IMPORTANT:
For thick walls (over 1/2" thick) or solid walls, do not pop open wings.
5. Place mounting bracket onto wall. Line
up last hole on each end of bracket with wall anchors.
6. Insert mounting screws through bracket
and into wall anchors.
7. Tighten screws until mounting bracket
is firmly fastened to wall.
Do not hammer key!
Figure 9 - Folding Anchor
Figure 10 - Popping Open Anchor Wings For Thin Walls
Placing Heater On Mounting Bracket
1. Locate two horizontal slots on back panel of heater.
2. Place heater onto mounting bracket. Slide horizontal slots onto stand-out tabs on mounting bracket (see Figure 11).
Installing Bottom Mounting Screws
1. Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 12).
2. Mark screw locations on wall.
3. Remove heater from mounting bracket.
4. If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 through 4 un­der Attaching To W all Anchor Method.
If installing bottom mounting screw into wall stud, drill holes at marked lo­cations using 9/64" drill bit.
5. Replace heater onto mounting bracket.
6. Place spacers between bottom mount­ing holes and wall anchor or drilled hole.
7. Hold spacer in place with one hand. With other hand, insert mounting screw through bottom mounting hole and spacer. Place tip of screw in opening of wall anchor or drilled hole.
8. Tighten both screws until heater is firmly secured to wall. Do not over tighten.
Note:
Do not replace front panel at this time. Replace front panel after making gas connections and checking for leaks. (see page 10).
Horizontal Slots
Stand-Out Tab
Mounting Bracket (attached to wall)
Figure 11 - Mounting Heater Onto Mount­ing Bracket
Figure 12 - Installing Bottom Mounting Screws
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Continued
9
BLUE FLAME NATURAL GAS HEATER
INSTALLATION
Continued
CONNECTING TO GAS SUPPLY
WARNING: This appliance re­quires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator.
WARNING: A qualified service person must connect heater to gas supply. Follow all local codes.
WARNING: Never connect heater to private (non-utility) gas well. This gas is commonly known as wellhead gas.
IMPORTANT:
fore connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur.
CAUTION: Use only new, black iron or steel pipe. Inter­nally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of large enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pres­sure will occur.
Check gas line pressure be-
Typical Inlet Pipe Diameters
FA-20BB, 3/8" or greater FAS-20BB
FA-30BB, 1/2" or greater FAS-30BB, FGH-30NG
Installation must include a 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 an equipment shutoff valve in an accessible location. The equip­ment shutoff valve is for turning on or shutting off the gas to the appliance.
Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.
3/8" NPT Pipe Nipple
Tee Joint
Test Gauge Connection *
Reducer Bushing to 1/8" NPT
1/8" NPT Plug Tap
Sediment Trap
Tee Joint
Pipe Nipple
Cap
CAUTION: Use pipe joint seal-
ant that is resistant to natural gas.
Install sediment trap in supply line as shown in Figure 13. Locate sediment trap where it is within reach for cleaning. 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.
IMPORTANT:
Hold pressure regulator with wrench when connecting it to gas piping and/or fittings.
Pressure Regulator
Heater Cabinet
Ground Joint Union
Equipment Shutoff Valve *
Typical Inlet Pipe from Gas Meter (4" W.C. to
10.5" W.C. Pressure)
3" Minimum
Figure 13 - Gas Connection
* An CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA/AGA design­certified equipment shutoff valve from your dealer. See Accessories, page 19.
10
105568
OWNER’S MANUAL
O
O
INSTALLATION
Continued
CHECKING GAS CONNECTIONS
WARNING: Test all gas pip­ing and connections for leaks after installation or servicing. Correct all leaks at once.
WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG (3.5 K Pa)
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 using compressed air or opening main gas valve located on or near gas meter.
4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles form­ing show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff valve to gas supply. Check re­connected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 K Pa)
1. Close equipment shutoff valve (see Fig­ure 14).
2. Pressurize supply piping system by either using compressed air or open­ing main gas valve located on or near gas meter.
3. Check all joints from gas meter to equipment shutoff valve (see Figure
15). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Pressure Testing Heater Gas Connections
1. Open equipment shutoff valve (see Figure 14).
2. Open main gas valve located on or near gas meter.
3. Make sure control knob of heater is in the OFF position.
4. Check all joints from equipment shutoff valve to thermostat gas valve (see Fig­ure 15). Apply mixture of liquid soap and water to gas joints. Bubbles form­ing show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, pages 11 and 12 for thermostat models or page 13 for non-thermostat models). Check all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 12 for thermostat models or page 13 for non-thermostat models).
8. Replace front panel.
Equipment Shutoff Valve
Figure 14 - Equipment Shutoff Valve
Gas Meter
Figure 15 - Checking Gas Joints
Open
POS
P
Closed
Gas Valve
Equipment Shutoff Valve
OPERATING HEATER
THERMOSTAT MODELS FAS-20BB AND FAS-30BB
FOR YOUR SAFETY
READ BEFORE
LIGHTING
WARNING: If you do not fol­low these instructions exactly, a fire 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 floor because some gas is heavier than air and will settle on the floor.
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 y our gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas sup­plier, call the fire department.
C. Use only your hand to push in or turn
the gas control knob. Ne ver use tools. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service technician or gas supplier. Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part
has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been un­der water.
Continued
105568
11
BLUE FLAME NATURAL GAS HEATER
Note:
OPERATING HEATER
Continued
THERMOSTAT MODELS FAS-20BB AND FAS-30BB
LIGHTING
INSTRUCTIONS
1. STOP! Read the safety information column 3, page 11.
2. Make sure equipment shutoff valve is fully open.
3. Tur n control knob clockwise to the OFF position.
4. Wait fi ve (5) minutes to clear out an y gas. Then smell for gas, including near the floor . If you smell gas, ST OP! Fol­low “B” in the safety information in column 1. If you don’t smell gas, go to the next step.
5. T urn contr ol knob counterclockwise
to the PILOT position.
C-clockwise
Press in control knob for f ive (5) sec­onds (see Figure 16).
Note:
You may be running this heater for the first time after hook­ing up to gas supply. If so, the con­trol knob may need to be pressed in for 30 seconds. This will allow air to bleed from the gas system.
• If control knob does not pop up
when released, contact a qualified service person or gas supplier for repairs.
6. With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to the front of burner. The pilot can be seen through the glass panel. If needed, keep pressing ignitor button until pilot lights.
Ignitor Button
PILOT
OFF
HI
Figure 16 - Control Knob In The OFF Position
Clockwise
Control Knob
LO
If pilot does not stay lit, refer
to Troubleshooting, pages 15 through
17. Also contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedure.
7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.
• If control knob does not pop up when
released, contact a qualified service person or gas supplier for repairs.
Note:
If pilot goes out, repeat steps 3 through 7. Wait one (1) minute be­fore lighting pilot again.
8. T urn contr ol knob counterclockwise to desired heating level. The
C-clockwise
main burner should light. Set control knob to any heat level between HI and LO.
CAUTION: Do not try to adjust heating levels by using the equip­ment shutoff valve.
Ignitor Electrode
Thermocouple
Figure 17 - Pilot
Pilot Burner
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Tur n control knob clockwise to the OFF position.
2. Turn off all electric power to the ap­pliance if service is to be performed.
Shutting Off Burner Only (pilot stays lit)
Turn control knob clockwise the PILOT position.
Clockwise
Clockwise
to
The thermostatic control used on these models differs from standard thermo­stats. Standard thermostats simply turn on and off the burner. The thermostat used on this heater senses the room tem­perature. The thermostat adjusts the amount of gas flow to the burner. This increases or decreases the burner flame height. At times the room may exceed the set temperature. If so, the burner will shut off. The burner will cycle back on when room temperature drops below the set temperature. The control knob can be set to any heat level between HI and LO. Selecting the HI setting will cause the burner to remain fully on without modu­lating down in most cases.
Note:
sures the temperature of air near the heater cabinet. This may not always agree with room temperature (depending on housing construction, installation loca­tion, room size, open air temperatures, etc.). Frequent use of your heater will let you determine your own comfort levels.
1. Remove front panel (see Figure 7,
2. Follow steps 1 through 5 under Light-
3. With control knob pressed in, strike
4. Keep control knob pressed in for 30
5. Replace front panel.
THERMOSTAT
CONTROL
OPERATION
The thermostat sensing bulb mea-
MANUAL LIGHTING
PROCEDURE
page 8).
ing Instructions .
match. Hold match to pilot until pi­lot lights.
seconds after lighting pilot. After 30 seconds, release control knob . Follow step 8 under Lighting Instructions, column 2.
12
105568
OWNER’S MANUAL
OPERATING HEATER
Continued
NON-THERMOSTAT MODELS FA-20BB, FA-30BB AND FGH-30NGB
FOR YOUR SAFETY
READ BEFORE
LIGHTING
WARNING: If you do not fol­low these instructions exactly, a fire 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 floor because some gas is heavier than air and will settle on the floor.
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 neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas sup­plier, call the fire department.
C. Use only your hand to push in or turn
the gas control knob. Ne ver use tools. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service technician or gas supplier. Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any
part has been under water. Imme­diately call a qualified service tech­nician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.
LIGHTING
INSTRUCTIONS
1. STOP! Read the safety information column 1.
2. Make sure the equipment shutoff valve is fully open.
3. T urn control knob clockwise to the OFF position (see Figure 18).
4. W ait five (5) minutes to clear out any gas. Then smell for gas including near the floor . If you smell gas, STOP! Follo w “B” in the safety information at left. If you don’t smell gas, go to the next step.
5. T urn contr ol knob counterclockwise
to the PILOT/IGN position. Press in control knob for f ive (5) sec­onds (see Figure 18).
Note:
You may be running this heater for the first time after hooking up to gas supply . If so, the control knob may need to be pressed in for 30 seconds. This will allow air to bleed from the gas system.
• If control knob does not pop up when
released, contact a qualified service person or gas supplier for repairs.
6. Release control knob pressure and turn clockwise to OFF.
7. Press in control knob and turn back to PILOT/IGN. This should cause the piezo ignitor to spark and light the pilot gas. If needed, repeat steps 5 through 7 until pilot lights.
Note:
If pilot does not stay lit, refer
to Troubleshooting, pages 15 through
17. Also contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. T o light pilot with match, see Manual Lighting Procedure.
8. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.
Note:
If pilot goes out, repeat steps
3 through 7.
9. To light burner, slightly press in con­trol knob and turn counterclockwise
. Release downward pressure on control knob while turning. Set con­trol knob to desired heating position.
Note:
Both HIGH, MED, and LOW are locked positions. You must pr ess in control knob before turning it from these positions.
CAUTION: Do not try to ad­just heating levels by using the equipment shutoff valve.
Figure 18 - Control Knob In The OFF Position
Thermocouple
Figure 19 - Pilot
Ignitor Electrode
Pilot Burner
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Slightly press in control knob and turn clockwise to the PILOT/IGN position.
2. Fully press in control knob and turn clockwise to the OFF position.
3. Turn off all electric power to the ap­pliance if service is to be performed.
Shutting Off Burner Only (pilot stays lit)
Slightly press in control knob and turn clockwise to the PILOT position.
MANUAL LIGHTING
PROCEDURE
1. Remove front panel (see Figure 7, page 8).
2. Follow steps 1 through 5 under Light- ing Instructions.
3. With control knob pressed in, strike match. Hold match to pilot until pi­lot lights.
4. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.
5. Replace front panel.
105568
13
BLUE FLAME NATURAL GAS HEATER
G
G
INSPECTING BURNER
Check pilot flame pattern and burner flame pattern often.
PILOT FLAME PATTERN
Figure 20 shows a correct pilot flame pattern. Figure 21 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touch­ing the thermocouple. This will cause the thermocouple to cool. When the thermo­couple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown in Figure 21
• turn heater off (see T o T urn Off Gas to Ap- pliance, page 12 for thermostat models or page 13 for non-thermostat models)
• see Troubleshooting, pages 15 through 17
Pilot Burner
Thermocouple
Figure 20 - Correct Pilot Flame Pattern
Thermocouple
Pilot Burner
WARNING: If yellow tipping occurs, your heater could pro­duce increased levels of carbon monoxide. If burner flame pattern shows yellow tipping, follow in­structions at bottom of this page.
NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame.
1
/2 Glass
1/2
Height
Figure 22 - Correct Burner Flame Pattern
Yellow Tipping
1
/2 Glass
1/2
Height
Figure 23 - Incorrect Burner Flame Pattern
CLEANING AND MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
ODS/PILOT AND BURNER
• Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean.
CLEANING BURNER PILOT AIR INLET HOLE
We recommend that you clean the unit every 2,500 hours of operation or every three months.
We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts 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, pilot for dust and dirt.
3. Blow air through the ports/slots and
holes in the burner.
Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 24). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not available.
Figure 21 - Incorrect Pilot Flame Pattern
BURNER FLAME PATTERN
Figure 22 shows a correct burner flame pattern. Figure 23 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than 1/2 the glass panel height.
If burner flame pattern is incorrect, as shown in Figure 23
• turn heater off (see T o T urn Off Gas T o Ap- pliance, page 12 for thermostat models or page 13 for non-thermostat models)
• see Tr oubleshooting, pages 15 through 17
CAUTION: You must keep control areas, burner, and circu­lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali­fied service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.
14
Pilot Air Inlet Hole
Pilot Assembly
Figure 24 - Pilot Inlet Air Hole
CABINET
Air Passageways
• Use a vacuum cleaner or pressurized air to clean.
Exterior
• Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabi­net to remove dust.
105568
OWNER’S MANUAL
TROUBLESHOOTING
Note:
For additional help, visit DESA
International’s technical service web site at www.desatech.com.
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
WARNING: Turn off and un­plug heater and let cool before servicing. Only a qualified ser­vice person should service and repair heater.
POSSIBLE CAUSE
1. Ignitor electrode positioned wrong
2. Ignitor electrode broken
3. Ignitor electrode not connected to igni­tor cable
4. Ignitor cable pinched or wet
5. Broken ignitor cable
6. Bad piezo ignitor
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 lines when installed
5. ODS/pilot is clogged
6. Gas regulator setting is not correct
CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit.
REMEDY
1. Replace ignitor
2. Replace ignitor
3. Reconnect ignitor cable
4. Free ignitor cable if pinched by any metal or tubing. Keep ignitor cable dry
5. Replace ignitor cable
6. Replace piezo ignitor
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. Continue holding down control knob. Re­peat igniting operation until air is removed
5. Clean ODS/pilot (see Cleaning and Maintenance, page 14) or replace ODS/ pilot assembly
6. Replace gas regulator
ODS/pilot lights but flame goes out when control knob is released
1. Control knob not fully pressed in
2. Control knob not pressed in long enough
3. Equipment shutoff valve not fully open
4. Thermocouple connection loose at con­trol valve
5. Pilot flame not touching thermocouple, which allows thermocouple to cool, causing 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. Thermocouple damaged
7. Control valve damaged
www.desatech.com
1. Press in control knob fully
2. After ODS/pilot lights, keep control knob pressed in 30 seconds
3. Fully open equipment shutoff valve
4. Hand tighten until snug, then tighten 1/4 turn more
5. A) Contact local natural gas company
B) Clean ODS/pilot (see Cleaning and Maintenance, page 14) or replace ODS/ pilot assembly
6. Replace thermocouple
7. Replace control valve
Continued
105568
15
BLUE FLAME NATURAL GAS HEATER
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Burner does not light after ODS/pilot is lit
Delayed ignition of burner
Burner backfiring during combustion
Yellow flame during burner combustion
Slight smoke or odor during initial operation
Heater produces a whistling noise when burner is lit
POSSIBLE CAUSE
1. Burner orifice is clogged
2. Burner orifice diameter is too small
3. Inlet gas pressure is too low
1. Manifold pressure is too low
2. Burner orifice is clogged
1. Burner orifice is clogged or damaged
2. Burner damaged
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
1. Residues from manufacturing processes
1. Turning control knob to HI position when burner is cold
2. Air in gas line
3. Air passageways on heater blocked
4. Dirty or partially clogged burner orifice
REMEDY
1. Clean burner (see Cleaning and Mainte­nance, page 14) or replace burner orifice
2. Replace burner orifice
3. Contact local natural gas company
1. Contact local natural gas company
2. Clean burner (see Cleaning and Mainte- nance, page 14) or replace burner orifice
1. Clean burner (see Cleaning and Mainte- nance, page 14) or replace burner orifice
2. Replace burner
3. Replace gas regulator
1. Check burner for dirt and debris. If found, clean burner (see Cleaning and Maintenance, page 14)
2. Replace gas regulator
1. Problem will stop after a few hours of operation
1. Turn control knob to LO position and let warm up for a minute
2. Operate burner until air is removed from line. Have gas line checked by local natural gas company
3. Observe minimum installation clear­ances (see Figure 4, page 7)
4. Clean burner (see Cleaning and Mainte- nance, page 14) or replace burner orifice
White powder residue forming within de­flector unit or on adjacent walls or furniture
1. When heated, vapors from furniture pol­ish, wax, carpet cleaners, etc. turn into white powder residue
www.desatech.com
16
1. Turn heater off when using furniture polish, wax, carpet cleaners, or similar products
105568
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 fire department.
OWNER’S MANUAL
IMPORTANT:
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.
Operating heater where impurities in air exist may create odors. Cleaning
OBSERVED PROBLEM
Heater produces a clicking/ticking noise just after burner is lit or shut off
Heater produces unwanted 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. Metal expanding while heating or con­tracting while cooling
1. Heater burning vapors from paint, hair spray, glues, etc. (see statement above)
2. Gas leak. See W arning statement at
top of page
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged
1. Gas leak. See W arning statement at
top of page
2. Control valve defective
1. Foreign matter between control valve and burner
2. Gas leak. See W arning statement at
top of page
IMPORTANT
REMEDY
1. This is common with most heaters. If noise is excessive, contact qualified ser­vice person
1. Ventilate room. Stop using odor caus­ing products while heater is running
2. Locate and correct all leaks (see Check- ing Gas Connections, page 11)
1. Open window and/or door for ventilation
2. Contact local natural gas company
3. Clean ODS/pilot (see Cleaning and Maintenance, page 14)
1. Locate and correct all leaks (see Check- ing Gas Connections, page 11)
2. Replace control valve
1. Take apart gas tubing and remove for­eign matter
2. Locate and correct all leaks (see Check- ing Gas Connections, page 11)
Moisture/condensation noticed on windows
105568
1. Not enough combustion/ventilation air
www.desatech.com
17
1. Refer to Air for Combustion and Venti­lation requirements (page 4)
BLUE FLAME NATURAL GAS HEATER
SPECIFICATIONS
FA-20BB FAS-20BB FA-30BB FAS-30BB FGH-30NGB
Btu (Variable) 20,000/10,500 20,000/9,000 30,000/15,000 30,000/14,000 30,000/15,000 Type Gas Natural Only Natural Only Natural Only Natural Only Natural Only Ignition Piezo Piezo Piezo Piezo Piezo Pressure Regulator Setting 3" W.C. 3" W.C. 3" W.C. 3" W.C. 3" W.C. Inlet Gas Pressure (in. of water)
Maximum 10.5" 10.5" 10.5" 10.5" 10.5" Minimum 4" 4" 4" 4" 4"
Dimensions, Inches (H x W x D)
Heater (Includes knobs & grill) 23 x 18.75 x 7 23 x 18.75 x 7 23 x 26 x 7 23 x 26 x 7 23 x 26 x 7 Carton 26 x 21 x 9 26 x 21 x 9 26 x 28.5 x 9 26 x 28.5 x 9 26 x 28.5 x 9
Weight (pounds)
Heater 21 21.5 27.7 28.1 25 Shipping 24.5 25 33.7 34.1 31
PARTS CENTRALS
These Parts Centrals are privately owned businesses. They have agreed to support our customer's needs by providing original replacement parts and accessories.
Baltimore Electric
1348 Dixwell Avenue Hamden, CT 06514-0322 1-800-397-7553 203-248-7553 Parts Department
Portable Heater Parts
342 N. County Rd. 400 East Valparaiso, IN 46383-9704 All States 219-462-7441 1-800-362-6951 sales@portableheaterparts.com techservice@portableheaterparts.com
FBD
1349 Adams Street Bowling Green, KY 42103-3414 270-846-1199 1-800-654-8534 Fax: 1-800-846-0090 franktalk@aol.com
Master Parts Dist.
1251 Mound Ave. NW Grand Rapids, MI 49504-2672 616-791-0505 1-800-446-1446 Fax: 616-791-8270 www.nbmc.com
Washer Equipment Co.
1715 Main Street Kansas City, MO 64108-2195 KS, MO, AR 816-842-3911 www.washerparts.com
East Coast Energy Products
707 Broadway W. Long Branch, NJ 07764-1542 732-870-8809 1-800-755-8809 www.njplaza.com/ecep
Tarantin Tank Co.
P.O. Box 6129 Freehold, NJ 07728-6129 908-780-9340 1-800-922-0724 www.tarantin.com
Heater and Fireplace Store
58 Halbe Lane Cape May Court, NJ 08210-1110 609-390-9774 Parts Department
Dayton Hardware
P.O. Box 275 North Dayton Station Dayton, OH 45404-0275 All States 937-258-3721 OH 1-800-762-3426
Halco Enterprises
208 Carter Drive, Unit 21 West Chester, PA 19382-4500 610-430-7717 1-800-368-0803 www.halcoenterprises.com
LA Porte’s Parts & Service
2444 N. 5th Street Hartsville, SC 29550-7704 803-332-0191 Parts Department
Cans Unlimited, Inc.
P.O. Box 645 Taylor, SC 29687-0013 All States 803-879-3009 1-800-845-5301 cuisales@aol.com
18
105568
OWNER’S MANUAL
REPLACEMENT PART S
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 International’s Techni­cal Service Department at 1-800-323-5190.
When calling DESA International, have ready
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date Usually, we will ask you to return the defec-
tive part to the factory.
PARTS NOT UNDER WARRANTY
TECHNICAL SERVICE
You may have further questions about in­stallation, operation, or troubleshooting.
If so, contact DESA International’s Techni­cal Service Department at 1-800-323-5190.
You can also visit DESA International’s technical service web site at www.desatech.com.
ACCESSORIES
Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA International’s Parts Department at 1-800-972-7879 for referral information. You can also write to the ad­dress listed on the back page of this manual.
SERVICE PUBLICATIONS
You can purchase service manual from the address listed on the back page of this manual. Send a check for $5.00 payable to DESA International.
Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Parts Department at 1-800-972-7879 for referral information.
When calling DESA International, have ready
• model number of your heater
• the replacement part number
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burner will have delayed ignition
• heater will not produce specified heat
When Gas Quality Is Bad
• pilot will not stay lit
• burner will produce flames and soot
• heater will backfire when lit You may feel your gas pressure is too low or
gas quality is bad. If so, contact your local natural gas supplier.
EQUIPMENT SHUTOFF VALVE GA5010
For all models. Equipment shutoff valve with 1/8" NPT tap.
FAN KITS - UH1000FB, AND UHS1000FB
For all models. Provides better heat distri­bution. Makes heater more efficient. Com­plete installation and operating instructions included.
Manually-controlled - UH1000FB. Includes ON/OFF switch.
Thermostatically-controlled - UHS1000FB. Includes three settings: ON/OFF/AUTO.
FLOOR MOUNTING STAND
Model UH3000BA (Shown) ­(FA-20BB and FAS-20BB) Model UH5000BA ­(FA-30BB and FAS-30BB)
For locating heater on the floor, away from a wall. Complete installation
instructions included.
105568
19
BLUE FLAME NATURAL GAS HEATER
ILLUSTRATED PART S BREAKDOWN
THERMOSTAT MODELS FAS-20BB FAS-30BB
5
7
6
22
12
10
8
9
3
4
7
25
17
7
23
19
21
20
26
26
24
18
18
16
16
29
1
11
7
14
15
14
13
27
28
7
2
28
7
24-1 24-2
ODS/Pilot Assembly
20
105568
OWNER’S MANUAL
PARTS LIST
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual.
THERMOSTAT MODELS FAS-20BB FAS-30BB
KEY PART NUMBER FOR NO. FAS-20BB FAS-30BB DESCRIPTION QTY.
1 L98409-10 L98409-09 Cabinet Assembly 1 2 L98006-02 L98006-01 Front Panel Assembly 1 3 L98410-07 L98410-06 Deflector Unit 1 4 L98501-02 L98501-01 Glass 1 5 L98502-02 L98502-01 Upper Glass Retainer 1 6 L98807-02 L98807-01 Lower Glass Retainer 1 7 L98817-01 L98817-01 Self Tapping Screw 16 8 L99850-03 L99850-01 Thermostat Valve Assembly 1 9 L98815-01 L98815-01 Screw 2 10 L99066-01 L99066-01 Thermostat Valve Base 1 11 097159-04 097159-04 Ignitor 1 12 L98411-01 L98411-01 Ignitor Line 1 13 L99029-03 L99029-03 Pressure Regulator 1 14 L98801-01 L98801-01 Washer 2 15 L98806-01 L98806-01 Self Tapping Screw 2 16 L98115-03 L98115-03 Main Inlet Tube Assembly 1 17 L98123-06 L98123-06 ODS Line Assembly 1 18 L98126-01 L98126-01 Burner Inlet Tube Assembly 1 19 L98506-02 L98506-01 Burner 1 20 L98507-01 L98507-01 Burner Connector 1 21 L98508-03 L98508-01 Injector 1 22 L98504-01 L98504-01 Left Burner Support Bracket 1 23 L98505-01 L98505-01 Right Burner Support Bracket 1 24 L98071-03 L98071-03 ODS/Pilot Assembly 1 24-1 098514-01 098514-01 Thermocouple 1 24-2 L98071-07 L98071-07 Ignitor Electrode 1 25 L98805-01 L98805-01 ODS Upper Deflector 1 26 L98514-01 L98514-01 Nut 2 27 L98010-07 L98010-06 Grill 2 28 L98011-01 L98011-01 Grill Fastener 2 29 L98085-01 L98085-01 Mounting Bracket 1
105568
PARTS AVAILABLE — NOT SHOWN
100642-01 100642-01 Hardware Kit 1 104892-30 104892-34 CSA/AGA Label 1 L98098-01 L98098-01 Gas Instruction Decal 1 L98100-01 L98100-01 Inside Warning Label 1 L98080-02 L98080-02 Thermostat Sensing Bulb Clip 2
21
BLUE FLAME NATURAL GAS HEATER
ILLUSTRATED PART S BREAKDOWN
NON-THERMOSTAT MODELS FA-20BB, FA-30BB, AND FGH-30NGB
7
5
8
6
26
30
16
18
19
3
4
8
8
9
17
21
20
22
1
16
33
11
12
8
14
15
14
31
10
32
8
30
29
28
17
2
8
23
32
27
25
24
22
13
28-1 28-2
ODS/Pilot Assembly
22
105568
OWNER’S MANUAL
PARTS LIST
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual.
NON-THERMOSTAT MODELS FA-20BB, FA-30BB, AND FGH-30NGB
KEY PART NUMBER FOR NO. FA-20BB FA-30BB FGH-30NGB DESCRIPTION QTY.
1 L98409-08 L98409-07 L98409-07 Cabinet Assembly 1 2 L98006-02 L98006-01 L98006-01 Front Panel Assembly 1 3 L98410-07 L98410-06 L98410-06 Deflector Unit 1 4 L98501-02 L98501-01 ------------- Glass 1 5 L98502-02 L98502-01 ------------- Upper Glass Retainer 1 6 L98807-02 L98807-01 ------------- Lower Glass Retainer 1 7 ---------- ----------- L98503-01 Steel Wind Shield 1 8 L98817-01 L98817-01 L98817-01 Self Tapping Screw 16 9 L98034-01 L98034-01 L98034-01 Control Valve 1 10 L98411-01 L98411-01 L98411-01 Ignitor Line 1 11 L98061-03 L98061-03 L98061-03 Control Knob 1­12 L98079-01 L98079-01 L98079-01 Control Knob Clip 1 13 L99029-03 L99029-03 L99029-03 Pressure Regulator 1 14 L98801-01 L98801-01 L98801-01 Washer 2 15 L98806-01 L98806-01 L98806-01 Self Tapping Screw 2 16 L98115-06 L98115-06 L98115-06 Main Inlet Tube Assembly 1 17 L98123-09 L98123-08 L98123-08 ODS Line 1 18 L98127-01 L98127-01 L98127-01 Lower Gas Outlet Tube Assembly 1 19 L98128-01 L98128-01 L98128-01 Medium Gas Outlet Tube Assembly 1 20 L98129-01 L98129-01 L98129-01 High Gas Outlet Tube Assembly 1 21 L98055-01 L98055-01 L98055-01 4-way Connector 1 22 L98126-03 L98126-03 L98126-03 Burner Inlet Tube Assembly 1 23 L98506-02 L98506-01 L98506-01 Burner 1 24 L98507-01 L98507-01 L98507-01 Burner Connector 1 25 L98508-09 L98508-07 L98508-07 Injector 1 26 L98504-01 L98504-01 L98504-01 Left Burner Support Bracket 1 27 L98505-01 L98505-01 L98505-01 Right Burner Support Bracket 1 28 L98071-03 L98071-03 L98071-03 ODS/Pilot Assembly 1 28-1 098514-01 098514-01 098514-01 Thermocouple 1 28-2 L98071-07 L98071-07 L98071-07 Ignitor Electrode 1 29 L98805-01 L98805-01 L98805-01 ODS Upper Deflector 1 30 L98514-01 L98514-01 L98514-01 Nut 2 31 L98010-07 L98010-06 L98010-06 Grill 2 32 L98011-01 L98011-01 L98011-01 Grill Fastener 2 33 L98085-01 L98085-01 L98085-01 Mounting Bracket 1
105568
PARTS AVAILABLE — NOT SHOWN
100642-01 100642-01 100642-01 Hardware Kit 1 104892-28 104892-32 104892-36 CSA/AGA Label 1 L98098-01 L98098-01 L98098-01 Gas Instruction Decal 1 L98100-01 L98100-01 L98100-01 Inside Warning Label 1
23
WARRANTY INFORMATION
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 specifications 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 RESIDENTIAL GAS HEATERS
DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first 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 International who will provide original factory replacement parts. Failure to use original factory replacement parts voids this warranty. The heater MUST be installed by a qualified 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 TWO (2) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND DESA INTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA INTERNATIONAL 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 specific legal rights, and you may also have other rights that vary from state to state. For information about this warranty write:
INTERNATIONAL
2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004
www.desatech.com
105568 01
NOT A UPC
105568-01 L98110-01 REV. D 02/00
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