Glo-Warm Natural Gas Heater Manual

1105566

OWNER’S MANUAL

FA-3BFAS-3CFA-5B

FAS-5C

Save this manual for future reference.

INFRARED VENT-FREE NATURAL GAS HEATEROWNER’S OPERATION AND INSTALLATION MANUAL

WARNING: If the information in this manual isnot followed exactly, a fire or explosion mayresult causing property damage, personalinjury, or loss of life.

— Do not store or use gasoline or otherflammable vapors and liquids in the vicinity ofthis 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 gassupplier’s instructions.

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

— Installation and service must be performed bya qualified installer, service agency, or thegas supplier.

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

WARNING: This is anunvented gas-fired heater.It uses air (oxygen) from theroom in which it is installed.Provisions for adequatecombustion and ventilationair must be provided. Referto Air For Combustion andVentilation section on page4 of this manual.

WARNING: Improper instal-lation, adjustment, alteration,service, or maintenance cancause injury or property dam-age. Refer to this manual forcorrect installation and op-erational procedures. For as-sistance or additional infor-mation consult a qualified in-staller, service agency, or thegas supplier.

This appliance may be installed in an aftermarket*, permanently located, manufac-tured (mobile) home, where not prohibited by local codes.This appliance is only for use with the type of gas indicated on the rating plate. Thisappliance is not convertible for use with other gases.

2 105566

INFRARED NATURAL GAS HEATER

1. This appliance is only for use with thetype of gas indicated on the rating plate.This appliance is not convertible for usewith 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 thegas supplier’s instructions.

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

SAFETYINFORMATION

Carbon Monoxide Poisoning: Early signsof carbon monoxide poisoning resemble theflu, with headaches, dizziness, or nausea. Ifyou have these signs, the heater may not beworking properly. Get fresh air at once!Have heater serviced. Some people are moreaffected by carbon monoxide than others.These include pregnant women, personswith heart or lung disease or anemia, thoseunder the influence of alcohol, and those athigh altitudes.

Natural Gas: Natural gas is odorless. Anodor-making agent is added to natural gas.The odor helps you detect a natural gas leak.However, the odor added to natural gas canfade. Natural gas may be present even thoughno odor exists.

Make certain you read and understand allwarnings. Keep this manual for reference. Itis your guide to safe and proper operation ofthis heater.

IMPORTANT: Read this owner’smanual carefully and completelybefore trying to assemble, oper-ate, or service this heater. Im-proper use of this heater can causeserious injury or death from burns,fire, explosion, electrical shock,and carbon monoxide poisoning.

3. This heater shall not be installed in abedroom or bathroom.

4. Always run non-thermostat heater withplaque control knob in a locked position.Never set control knob between lockedpositions. Poor combustion and higherlevels of carbon monoxide may result.

5. This heater needs fresh, outside air ven-tilation to run properly. This heater hasan Oxygen Depletion Sensor (ODS)safety shutoff system. The ODS shutsdown the heater if not enough fresh airis available. See Fresh Air for Combus-tion and Ventilation, pages 4 through 6.

6. Keep all air openings in front and bot-tom of heater clear and free of debris.This will insure enough air for propercombustion.

7. If heater shuts off, do not relight untilyou provide fresh, outside air. If heaterkeeps shutting off, have it serviced.

8. Do not run heater• where flammable liquids or vapors

are used or stored• under dusty conditions

9. Before using furniture polish, wax, car-pet cleaner, or similar products, turnheater off. If heated, the vapors fromthese products may create a white pow-der residue within burner box or onadjacent walls or furniture.

10. Do not use heater if any part has beenunder water. Immediately call a quali-fied service technician to inspect theroom heater and to replace any part ofthe control system and any gas controlwhich has been under water.

11. Turn off and unplug heater and let coolbefore servicing. Only a qualified ser-vice person should service and repairheater.

12. Operating heater above elevations of4,500 feet could cause pilot outage.

WARNINGS

DANGER: Carbon monoxidepoisoning may lead to death!

WARNING: Any change to thisheater or its controls can bedangerous.

Do not place clothing or otherflammable material on or nearthe appliance. Never place anyobjects on the heater.

Surface of heater becomes veryhot when running heater. Keepchildren and adults away fromhot surface to avoid burns orclothing ignition. Heater will re-main hot for a time after shut-down. Allow surface to cool be-fore touching.

Carefully supervise young chil-dren when they are in the sameroom with heater.

Make sure grill guard is in placebefore running heater.

Keep the appliance area clear andfree from combustible materials,gasoline, and other flammablevapors and liquids.

Due to high temperatures, theappliance should be located outof traffic and away from furnitureand draperies.

WARNING: Do not use anyaccessory not approved for usewith this heater.

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OWNER’S MANUAL

PRODUCTIDENTIFICATION

LOCAL CODESInstall and use heater with care. Follow alllocal codes. In the absence of local codes, usethe latest edition of National Fuel Gas CodeANS 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 ParkQuincy, MA 02269

Figure 1 - Vent-Free Natural Gas Heater (Model FA-5B Shown)

Control Knob

PRODUCTFEATURESSAFETY DEVICEThis heater has a pilot with an OxygenDepletion Sensing (ODS) safety shutoffsystem. The ODS/pilot is a required featurefor vent-free room heaters. The ODS/pilotshuts off the heater if there is not enoughfresh air.

PIEZO IGNITION SYSTEMThis heater has a piezo ignitor. This systemrequires no matches, batteries, or othersources to light heater.

THERMOSTATIC HEATCONTROL ON THERMOSTATMODELS FAS-3C AND FAS-5CThese heaters have a control valve with athermostat sensing bulb. This results in thegreatest heater comfort and may result inlower gas bills.

UNPACKING1. Remove heater from carton.

2. Remove all protective packaging ap-plied to heater for shipment.

3. Check heater for any shipping damage.If heater is damaged, promptly informdealer where you bought heater.

GrillGuard

Burners

HeaterCabinet

FrontPanel

4 105566


FRESH AIR FORCOMBUSTION ANDVENTILATION

Today’s homes are built more energy effi-cient than ever. New materials, increasedinsulation, and new construction methodshelp reduce heat loss in homes. Home ownersweather strip and caulk around windows anddoors to keep the cold air out and the warm airin. During heating months, home ownerswant their homes as airtight as possible.

While it is good to make your home energyefficient, your home needs to breathe. Freshair must enter your home. All fuel-burningappliances need fresh air for proper com-bustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, andfuel burning appliances draw air from thehouse to operate. You must provide ad-equate fresh air for these appliances. Thiswill insure proper venting of vented fuel-burning appliances.

PRODUCING ADEQUATEVENTILATIONThe following are excerpts from NationalFuel Gas Code, NFPA 54/ANS Z223.1, Sec-tion 5.3, Air for Combustion and Ventilation.

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

1. Unusually Tight Construction

2. Unconfined Space

3. Confined Space

The information on pages 4 through 6 willhelp you classify your space and provideadequate ventilation.

Unusually Tight Construction

The air that leaks around doors and win-dows may provide enough fresh air forcombustion and ventilation. However, inbuildings of unusually tight construction,you must provide additional fresh air.

Unusually tight construction is de-fined as construction where:a. walls and ceilings exposed to the

outside atmosphere have a con-tinuous water vapor retarder witha rating of one perm (6 x 10 -11 kgper pa-sec-m 2) or less with open-ings gasketed or sealed and

b. weather stripping has beenadded on openable windows anddoors and

c. caulking or sealants are appliedto areas such as joints aroundwindow and door frames, be-tween sole plates and floors, be-tween wall-ceiling joints, be-tween wall panels, at penetra-tions for plumbing, electrical, andgas lines, and at other openings.

If your home meets all of the threecriteria above, you must provide ad-ditional fresh air. See Ventilation AirFrom Outdoors , page 6 .

If your home does not meet all of thethree criteria above, see DeterminingFresh-Air Flow for Heater Location,page 5

Confined and Unconfined Space

The National Fuel Gas Code ANS Z223.1defines a confined space as a space whosevolume is less than 50 cubic feet per 1,000Btu per hour (4.8 m3 per kw) of the aggre-gate input rating of all appliances installedin that space and an unconfined space as aspace whose volume is not less than 50cubic feet per 1,000 Btu per hour (4.8 m3 perkw) of the aggregate input rating of allappliances installed in that space. Roomscommunicating directly with the space inwhich the appliances are installed*, throughopenings not furnished with doors, are con-sidered a part of the unconfined space.

This heater shall not be installed in a con-fined space or unusually tight constructionunless provisions are provided for adequatecombustion and ventilation air.

* Adjoining rooms are communicating onlyif there are doorless passageways or ventila-tion grills between them.

WARNING: This heater shallnot be installed in a confined spaceor unusually tight constructionunless provisions are providedfor adequate combustion and ven-tilation air. Read the following in-structions to insure proper freshair for this and other fuel-burningappliances in your home.

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OWNER’S MANUAL

FRESH AIR FORCOMBUSTION ANDVENTILATIONContinued

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 betweenthe rooms.

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

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

58,000 Btu/Hr (actual amount of Btu/Hr used)

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 noadditional fresh air ventilation.

Continued

Example:Gas water heater 40,000 Btu/Hr

Vent-free heater+ 18,000 Btu/Hr

Total = 58,000 Btu/Hr

WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined spaceor if the building is of unusually tight construction, provide adequate combustion and ventilation air by one ofthe methods described in the National Fuel Gas Code, ANS Z223.1, Section 5.3 or applicable local codes.

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Figure 3 - Ventilation Air from Outdoors

Ventilation Air From Outdoors

Provide extra fresh air by using ventilationgrills or ducts. You must provide two per-manent openings: one within 12" of theceiling and one within 12" of the floor.Connect these items directly to the outdoorsor spaces open to the outdoors. These spacesinclude attics and crawl spaces. Follow theNational Fuel Gas Code NFPA 54/ANSZ223.1, Section 5.3, Air for Combustion andVentilation for required size of ventilationgrills or ducts.

IMPORTANT: Do not provide openings forinlet or outlet air into attic if attic has athermostat-controlled power vent. Heated airentering the attic will activate the power vent.

OutletAir

VentilatedAttic

OutletAir

InletAir

Inlet Air Ventilated Crawl Space

To CrawlSpace

To Attic

FRESH AIR FORCOMBUSTION ANDVENTILATIONContinued

Or Remove Door into Adjoining

Room, Option 3

Ventilation Grills Into Adjoining Room,

Option 2

12"

12"

VentilationGrills

into AdjoiningRoom,

Option 1

VENTILATION AIR

Ventilation Air From InsideBuilding

This fresh air would come from an adjoiningunconfined space. When ventilating to anadjoining unconfined space, you must pro-vide two permanent openings: one within12" of the ceiling and one within 12" of thefloor on the wall connecting the two spaces(see options 1 and 2, Figure 2). You can alsoremove door into adjoining room (see op-tion 3, Figure 2). Follow the National FuelGas Code NFPA 54/ANS Z223.1, Section5.3, Air for Combustion and Ventilation forrequired size of ventilation grills or ducts.

Figure 2 - Ventilation Air from Inside Building

WARNING: Rework work-sheet, adding the space of theadjoining unconfined space. Thecombined spaces must haveenough fresh air to supply allappliances in both spaces.

7105566

OWNER’S MANUAL

INSTALLATION

WARNING: A qualified ser-vice person must install heater.Follow all local codes.

CHECK GAS TYPEUse only natural gas. If your gas supply isnot natural, do not install heater. Call dealerwhere you bought heater for proper typeheater.

INSTALLATION ITEMSBefore installing heater, make sure you havethe 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/AGA design-certified equipmentshutoff valve with 1/8" NPT tap is an ac-ceptable alternative to test gauge connec-tion. Purchase the optional CSA/AGA de-sign-certified equipment shutoff valve fromyour dealer. See Accessories, page 19.

LOCATING HEATERThis heater is designed to be mounted ona wall.

WARNING: Maintain the mini-mum clearances shown in Figure4. If you can, provide greater clear-ances from floor, ceiling, andjoining wall.

You can locate heater on floor, away from awall. An optional floor mounting stand isneeded. Purchase the floor mounting standfrom your dealer. See Accessories, page 19.

WARNING: Never install theheater• in a bedroom or bathroom• in a recreational vehicle• where curtains, furniture,

clothing, or other flammableobjects are less than 36 inchesfrom the front, top, or sides ofthe heater

• as a fireplace insert• in high traffic areas• in windy or drafty areas

IMPORTANT: Vent-free heaters add mois-ture to the air. Although this is beneficial,installing heater in rooms without enoughventilation air may cause mildew to form fromtoo much moisture. See Fresh Air for Com-bustion and Ventilation, pages 4 through 6.

Continued

CAUTION: If you install theheater in a home garage• heater pilot and burner must be

at least 18 inches above floor• locate heater where moving ve-

hicle will not hit it

CAUTION: This heater cre-ates warm air currents. Thesecurrents move heat to wall sur-faces next to heater. Installingheater next to vinyl or cloth wallcoverings or operating heaterwhere impurities (such as to-bacco smoke, aromatic candles,cleaning fluids, oil or kerosenelamps, etc.) in the air exist, maydiscolor walls.

NOTICE: This heater is intendedfor use as supplemental heat. Usethis heater along with your pri-mary heating system. Do not in-stall this heater as your primaryheat source. If you have a centralheating system, you may runsystem’s circulating blower whileusing heater . This will help circu-late the heat throughout thehouse. In the event of a poweroutage, you can use this heateras your primary heat source.

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 yourdealer. See Accessories, page 19. If plan-ning to use fan, locate heater near anelectrical outlet.

36"

2"

FLOOR

CEILING

Minimum

Minimum toTop Surface of Carpeting, Tile or OtherCombustibleMaterial

8"MinimumFromSides OfHeater

LeftSide

RightSide

Figure 4 - Mounting Clearances As ViewedFrom Front of Heater

INSTALLING THERMOSTATSENSING BULB -For T-Stat Models Only

Remove clip and bulb from shipping loca-tion. Place clip and bulb into operation loca-tion (see Figure 7)

Figure 5 - Moving Thermostat SensingBulb

8 105566


17 3/8"

17 1/2"Min.

6 1/2"Min.

Adj

oini

ng W

all

Only Insert Mounting Screws Through Last

Hole On Each End

Floor

Methods For AttachingMounting Bracket To Wall

Only use last hole on each end of mountingbracket to attach bracket to wall. These twoholes are 16 inches apart from their centers.Attach mounting bracket to wall in one oftwo ways.

1. Attaching to wall stud

2. Attaching to wall anchor

Attaching to Wall Stud: This method pro-vides the strongest hold. Insert mountingscrews through mounting bracket and intowall studs.

Attaching to Wall Anchor: This methodallows you to attach mounting bracket tohollow walls (wall areas between studs) orto solid walls (concrete or masonry).

Decide which method better suits your needs.Either method will provide a secure hold forthe mounting bracket.

Marking Screw Locations1. Tape mounting bracket to wall where

heater will be located. Make suremounting bracket is level.

Model FA-5B, FAS-5B

Model FA-3B, FAS-3B

Figure 9 - Mounting Bracket Clearances

WARNING: Maintain minimumclearances shown in Figure 8. Ifyou can, provide greater clear-ances from floor and joining wall.

INSTALLING HEATER TOWALL

Mounting Bracket

The mounting bracket is located on backpanel of heater. It has been taped there forshipping. Remove mounting bracket fromback panel.

Removing Front Panel Of HeaterModels FAS-3C and FAS-5C1. Remove two screws near bottom cor-

ners 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, thendown (see Figure 7).

Figure 6 - Mounting Bracket Location

MountingBracket

INSTALLATIONContinued

Figure 7 - Removing Front Panel of Heater(Model FAS-3B Shown)

Removing Front Panel Of HeaterModels FA-3B and FA-5B1. Remove two screws near bottom cor-

ners of lower front panel.

2. Pull bottom of lower front panel for-ward, then down (see Figure 8).

Figure 8 - Removing Front Panel of Heater(Model FA-5B Shown)

2. Mark screw locations on wall (see Fig-ure 9).

Note: Only mark last hole on each endof mounting bracket. Insert mountingscrews through these holes only.

3. Remove tape and mounting bracketfrom wall.

17 1/2"Min.

10 1/4"Min.

17 3/8"

Adj

oini

ng W

all

Only Insert Mounting Screws Through Last

Hole On Each End

Floor

9105566

OWNER’S MANUALInstalling Bottom MountingScrews1. Locate two bottom mounting holes.

These holes are near bottom on backpanel of heater (see Figure 13).

2. Mark screw locations on wall.

3. Remove heater from mounting bracket.

4. If installing bottom mounting screwsinto hollow or solid wall, install wallanchors. Follow steps 1 through 4 un-der Attaching To Wall Anchor Method.If installing bottom mounting screwinto wall stud, drill holes at marked lo-cations using 9/64" drill bit.

5. Replace heater onto mounting bracket.

6. Place spacers between bottom mount-ing holes and wall anchor or drilledhole.

7. Hold spacer in place with one hand.With other hand, insert mounting screwthrough bottom mounting hole andspacer. Place tip of screw in openingof wall anchor or drilled hole.

8. Tighten both screws until heater isfirmly secured to wall. Do not overtighten.

Note: Do not replace front panel at thistime. Replace front panel after makinggas connections and checking for leaks(see pages 10 and 11).

Figure 11 - Popping Open Anchor WingsFor Thin Walls

Attaching Mounting Bracket ToWall

Note: Wall anchors, mounting screws, andspacers are in hardware package. The hard-ware package is provided with heater.

Attaching to Wall Stud Method

For attaching mounting bracket to wall studs

1. Drill holes at marked locations using9/64" drill bit.

2. Place mounting bracket onto wall. Lineup last hole on each end of bracket withholes drilled in wall.

3. Insert mounting screws through bracketand into wall studs.

4. Tighten screws until mounting bracketis firmly fastened to wall studs.

Attaching to Wall Anchor Method

For attaching mounting bracket to hollowwalls (wall areas between studs) or solidwalls (concrete or masonry)

1. Drill holes at marked locations using5/16" drill bit. For solid walls (concreteor masonry), drill at least 1" deep.

2. Fold wall anchor as shown in Figure 10.

3. Insert wall anchor (wings first) intohole. Tap anchor flush to wall.

4. For thin walls (1/2" or less), insert redkey into wall anchor. Push red key to“pop” open anchor wings (see Figure11). IMPORTANT: Do not hammerkey!For thick walls (over 1/2" thick)or solid walls, do not pop open wings.

5. Place mounting bracket onto wall. Lineup last hole on each end of bracket withwall anchors.

6. Insert mounting screws through bracketand into wall anchors.

7. Tighten screws until mounting bracketis firmly fastened to wall.

Placing Heater On MountingBracket1. Locate two horizontal slots on back

panel of heater (see Figure 12).

2. Place heater onto mounting bracket.Slide horizontal slots onto stand-outtabs on mounting bracket.

Figure 10 - Folding Anchor


Figure 12 - Mounting Heater OntoMounting Bracket

Stand-Out Tab Mounting Bracket(attached to wall)

Horizontal Slots

Figure 13 - Installing Bottom MountingScrews

Continued

10 105566


Tee Joint

ReducerBushing to1/8" NPT

1/8" NPTPlug Tap

TestGaugeConnection *

SedimentTrap

Tee Joint

Pipe Nipple

Cap

EquipmentShutoffValve *

3/8" NPTPipe NippleHeater

Cabinet

Figure 14 - Gas Connection

* A CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptablealternative to test gauge connection. Purchase the optional CSA/AGA design-certifiedequipment shutoff valve from your dealer. See Accessories, page 19.

3" Minimum

Ground JointUnion

PressureRegulator

RegulatorBracket

Inlet Pipe From GasMeter (7" W.C. to10.5" W.C. Pressure)

CONNECTING TO GASSUPPLY

WARNING: A qualified serviceperson must connect heater togas supply. Follow all local codes.

Typical Inlet Pipe DiametersFA-3B/FAS-3C 3/8" or greaterFA-5B/FAS-5C 1/2" or greater

Installation must include equipment shutoffvalve, union, and plugged 1/8" NPT tap.Locate NPT tap within reach for test gaugehook up. NPT tap must be upstream fromheater (see Figure 14).

Install sediment trap in supply line as shownin Figure 14. Locate sediment trap where itis within reach for cleaning. Locate sedi-ment trap where trapped matter is not likelyto freeze. A sediment trap traps moistureand contaminants. This keeps them fromgoing into heater controls. If sediment trapis not installed or is installed wrong, heatermay not run properly.

IMPORTANT: Hold pressure regulatorwith wrench when connecting it to gas pip-ing and/or fittings.

CAUTION: Use pipe joint seal-ant that is resistant to liquid pe-troleum (LP) gas.

IMPORTANT: Check gas line pressure be-fore connecting heater to gas line. Gas linepressure must be no greater than 14 inchesof water. If gas line pressure is higher,heater regulator damage could occur.

WARNING: Never connectheater to private (non-utility) gaswells. This gas is commonlyknown as wellhead gas.

CAUTION: Use only new,black iron or steel pipe. Inter-nally-tinned copper tubing maybe used in certain areas. Checkyour local codes. Use pipe of largeenough diameter to allow propergas volume to heater. If pipe istoo small, undue loss of pres-sure will occur.


IMPORTANT: Install an equipment shutoffvalve in an accessible location. The equip-ment shutoff valve is for turning on orshutting off the gas to the appliance.

Apply pipe joint sealant lightly to malethreads. This will prevent excess sealantfrom going into pipe. Excess sealant in pipecould result in clogged heater valves. WARNING: This appliance re-

quires a 3/8" NPT (National PipeThread) inlet connection to thepressure regulator.

11105566

OWNER’S MANUAL

CHECKING GASCONNECTIONS

Pressure Testing Gas SupplyPiping System

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

1. Disconnect appliance with its appliancemain gas valve (control valve) and equip-ment shutoff valve from gas supply pip-ing system. Pressures in excess of 1/2 psigwill damage heater regulator.

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

3. Pressurize supply piping system by eitherusing compressed air or opening main gasvalve located on or near gas meter.

4. Check all joints of gas supply pipingsystem. Apply mixture of liquid soapand water to gas joints. Bubbles form-ing show a leak.

5. Correct all leaks at once.

6. Reconnect heater and equipmentshutoff valve to gas supply. Check re-connected fittings for leaks.

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

1. Close equipment shutoff valve (see Fig-ure 15).

2. Pressurize supply piping system by eitherusing compressed air or opening main gasvalve located on or near gas meter.

3. Check all joints from gas meter to equip-ment shutoff valve (see Figure 16). Ap-ply mixture of liquid soap and water togas joints. Bubbles forming show a leak.


WARNING: Never use an openflame to check for a leak. Apply amixture of liquid soap and waterto all joints. Bubbles forming showa leak. Correct all leaks at once.

WARNING: Test all gas pip-ing and connections for leaksafter installing or servicing. Cor-rect all leaks at once.

Pressure Testing Heater GasConnections1. Open equipment shutoff valve (see Fig-

ure 15).

2. Open main gas valve located on or neargas meter.

3. Make sure control knob of heater is inthe OFF position.

4. Check all joints from equipment shutoffvalve to control valve (see Figure 15).Apply mixture of liquid soap and wa-ter to gas joints. Bubbles forming showa leak.


6. Light heater (see Operating Heater,pages 11 and 12 for non-thermostatmodels or pages 13 and 14 for thermo-stat models). Check the rest of the in-ternal joints for leaks.

7. Turn off heater (see To Turn Off Gasto Appliance, page 12 for non-thermo-stat models or page 13 for thermostatmodels).

8. Replace front panel.

Figure 15 - Equipment Shutoff Valve

Figure 16 - Checking Gas Joints

Gas Meter

OPERATINGHEATERNON-THERMOSTAT MODELSFA-3B AND FA-5B


Continued

FOR YOUR SAFETYREAD BEFORE

LIGHTING

A. This appliance has a pilot which mustbe lighted by hand. When lighting thepilot, follow these instructions exactly.

B. BEFORE LIGHTING smell allaround the appliance area for gas. Besure to smell next to the floor becausesome gas is heavier than air and willsettle on the floor.WHAT TO DO IF YOU SMELL GAS• Do not try to light any appliance.• Do not touch any electric switch; do


from a neighbor’s phone. Followthe gas supplier’s instructions.

• If you cannot reach your gas sup-plier, call the fire department.

C. Use only your hand to push in or turnthe gas control knob. Never use tools.If the knob will not push in or turnby hand, don’t try to repair it, call aqualified service technician or gassupplier. Force or attempted repairmay result in a fire or explosion.

D. Do not use this appliance if any parthas been under water. Immediately calla qualified service technician to inspectthe appliance and to replace any partof the control system and any gas con-trol which has been under water.

WARNING: If you do not fol-low these instructions exactly, afire or explosion may result caus-ing property damage, personalinjury or loss of life.

Control Valve LocationNon-Thermostat Models

Control Valve LocationThermostat Models

OPOS

P

EquipmentShutoffValve

Closed

Open

EquipmentShutoffValve

12 105566


TO SELECTHEATING LEVEL

Slightly press in control knob and turn coun-terclockwise to the LOW, ME-DIUM, or HIGH positions (see Figure 19).

IMPORTANT: Release downward pres-sure while turning control knob. Controlknob will lock at the desired position.

WARNING: When runningheater, set control knob at LOW,MEDIUM, or HIGH locked posi-tions. Never set control knob be-tween locked positions. Poorcombustion and higher levels ofcarbon monoxide may result.

CAUTION: Do not try to adjustheating levels by using the equip-ment shutoff valve.

1. STOP! Read the safety informationpage 11, column 3.

2. Make sure equipment shutoff valveis fully open.

3. Turn control knob clockwise to the OFF position.

4. Wait five minutes to clear out anygas. Then smell for gas, includingnear the floor. If you smell gas,STOP! Follow “B” in the safety in-formation page 11, column 3. If youdon’t smell gas, go to the next step.

5. Press in and turn control knob coun-terclockwise to PILOT/IGNposition. Press in control knob forfive (5) seconds (see Figure 19).Note: You may be running this heaterfor the first time after hooking up togas supply. If so, you may need to pressin control knob for 30 seconds. This willallow air to bleed from the gas system.• If control knob does not pop up when

released, contact a qualified serviceperson or supplier for repairs.

6. Release downward pressure on con-trol knob and turn clockwise to OFF position.

7. Press in control knob and turn backto PILOT/IGN. This will cause thepiezo ignitor to spark and light thepilot gas. If needed, repeat steps 5through 7 until pilot lights.Note: If pilot does not stay lit, referto Troubleshooting, pages 15 through17. Also contact a qualified serviceperson or gas supplier for repairs.Until repairs are made, light pilotwith match. To light pilot with match,see Manual Lighting Procedure.

8 . Keep control knob pressed in for 30seconds after lighting pilot. After 30seconds, release control knob.Note: If pilot goes out, repeat steps3 through 7.

OPERATINGHEATERContinued

Ignitor Electrode

Pilot BurnerThermocouple

Figure 18 - Pilot

LIGHTINGINSTRUCTIONS Figure 17 - Control Knob In The OFF

Position TO TURN OFF GASTO APPLIANCE

MANUAL LIGHTINGPROCEDURE

1. Follow steps 1 through 5 under Light-ing Instructions.

2. With control knob pressed in, strikematch. Hold match to pilot until pi-lot lights.

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

Shutting Off Heater1. Turn control knob clockwise

to the OFF position.2. Turn off all electric power to the ap-

pliance if service is to be performed.

Shutting Off Burner Only (pilotstays lit)

Turn control knob clockwise tothe PILOT/IGN position.

Figure 19 - Burner Patterns

ControlKnob FA-3B FA-5B

LOW

HIGH

OFF

MED

13105566

OWNER’S MANUAL

OPERATINGHEATERContinuedTHERMOSTAT MODELS FAS-3CAND FAS-5C

FOR YOUR SAFETYREAD BEFORE

LIGHTING

A. This appliance has a pilot which mustbe lighted by hand. When lighting thepilot, follow these instructions exactly.

B. BEFORE LIGHTING smell allaround the appliance area for gas. Besure to smell next to the floor becausesome gas is heavier than air and willsettle on the floor.WHAT TO DO IF YOU SMELL GAS• Do not try to light any appliance.• Do not touch any electric switch; do


from a neighbor’s phone. Followthe gas supplier’s instructions.

• If you cannot reach your gas sup-plier, call the fire department.

C. Use only your hand to push in or turnthe gas control knob. Never use tools.If the knob will not push in or turnby hand, don’t try to repair it, call aqualified service technician or gassupplier. Force or attempted repairmay result in a fire or explosion.

D. Do not use this appliance if any parthas been under water. Immediately calla qualified service technician to inspectthe appliance and to replace any partof the control system and any gas con-trol which has been under water.

WARNING: If you do not fol-low these instructions exactly, afire or explosion may result caus-ing property damage, personalinjury or loss of life.

LIGHTINGINSTRUCTIONS

1. STOP! Read the safety information,column 1.

2. Make sure equipment shutoff valveis fully open.

OFF

ON

PILOT

IGN

17

3

5

4

6

2

Figure 20 - Dual Control for ThermostatModels FAS-3C and FAS-5C

Continued

7. Press in control knob and turn coun-terclockwise past IGN to PI-LOT (see Figure 20). This will causethe piezo ignitor to spark and lightthe pilot gas. Keep control knob de-pressed for 10 seconds before releas-ing. If needed, repeat steps 5 through7 until pilot lights.Note: If pilot does not stay lit, referto Troubleshooting, pages 15 through17. Also contact a qualified serviceperson or gas supplier for repairs.Until repairs are made, light pilot withmatch. To light pilot with match, seeManual Lighting Procedure, page 14.

8 . When pilot is lit, turn the controlknob to ON position (see Figure 22).

9. To select desired heating level, turnthe temperature setting knob coun-terclockwise between 1 and7 (see Figure 22).

Figure 21 - Pilot

Ignitor Electrode

Pilot BurnerThermocouple

OFF

ON

PILOT

IGN

17

3

5

4

6

2

OFF

ON

PILOT

IGN

1

7

3

5

4

6

2

Figure 22 - Burner Patterns

Temperature ControlSetting Knob Knob FAS-3C FAS-5C

ON

OFF

TO TURN OFF GASTO APPLIANCE

Shutting Off Heater1. Turn control knob clockwise

to the OFF position.2. Turn off all electric power to the ap-

pliance if service is to be performed.

Shutting Off Burner Only (pilotstays lit)

Turn control knob clockwise tothe PILOT position.

3. Push in control knob slightly and turnclockwise to the OFF position.Be sure that the temperature settingknob is set at the line between level 1and level 7 (see Figure 20).

4. Wait five minutes to clear out anygas. Then smell for gas, includingnear the floor. If you smell gas,STOP! Follow “B” in the safety in-formation in column 1. If you don’tsmell gas, go to the next step.

5. Push in and turn control knob coun-terclockwise to PILOT po-sition. Press in control knob for five(5) seconds.Note: You may be running thisheater for the first time after hook-ing up to gas supply. If so, you mayneed to press in control knob for 30seconds. This will allow air to bleedfrom the gas system.

6. Release downward pressure on con-trol knob and turn clockwise to OFF position.

14 105566


THERMOSTAT CONTROLOPERATION

The thermostatic control used on thesemodels differs from standard thermostats.Standard thermostats simply turn on andoff the burner. The thermostat used onthis heater senses the room temperature.At times the room may exceed the settemperature. If so, the burner will shut off.The burner will cycle back on when roomtemperature drops below the set tempera-ture. The temperature setting knob can beset to any comfort level between 1 and 7.

Note: The thermostat sensing bulb mea-sures the temperature of air near theheater cabinet. This may not always agreewith room temperature (depending onhousing construction, installation loca-tion, room size, open air temperatures,etc.) Frequent use of your heater will letyou determine your own comfort levels.

INSPECTINGBURNERCheck pilot flame pattern and burner flamepattern often.

PILOT FLAME PATTERNFigure 23 shows a correct pilot flame pattern.Figure 24 shows an incorrect pilot flamepattern. The incorrect pilot flame is not touch-ing the thermocouple. This will cause thethermocouple to cool. When the thermo-couple cools, the heater will shut down.If pilot flame pattern is incorrect, as shownin Figure 24• turn heater off (see To Turn Off Gas to Ap-

pliance, page 12 for non-thermostat mod-els or page 13 for thermostat models)

• see Troubleshooting, pages 15 through 17

GRH/OV 009GOOD PILOT

Figure 23 - Correct Pilot Flame Pattern

Thermocouple

GRH/OV 010BAD PILOT

Thermocouple

Figure 24 - Incorrect Pilot Flame Pattern

Pilot Burner

Pilot Burner

Figure 25 - Correct Burner Flame Pattern

Bad Burner Pattern-Plaque GRH/OV 019

Figure 26- Incorrect Burner Flame Pattern

CLEANING ANDMAINTENANCE

CAUTION: You must keepcontrol areas, burner, and circu-lating air passageways of heaterclean. Inspect these areas ofheater before each use. Haveheater inspected yearly by a quali-fied service person. Heater mayneed more frequent cleaning dueto excessive lint from carpeting,bedding material, pet hair, etc.

WARNING: Turn off heaterand let cool before servicing.

OPERATINGHEATERContinued

MANUAL LIGHTINGPROCEDURE

1. Follow steps 1 through 5 under Light-ing Instructions, page 13.

2. With control knob pressed in,strike match. Hold match to pilotuntil pilot lights.

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

BURNER FLAME PATTERNFigure 25 shows a correct burner flamepattern. Figure 26 shows an incorrect burnerflame pattern.If pilot flame pattern is incorrect, as shownin Figure 26• turn heater off (see To Turn Off Gas to Ap-

pliance, page 12 for non-thermostat mod-els or page 13 for thermostat models)

• see Troubleshooting, pages 15 through 17

ODS/PILOT AND BURNER• Use a vacuum cleaner, pressurized air,

or small, soft bristled brush to clean.

CLEANING BURNERPILOT AIR INLET HOLEWe recommend that you clean the unit every2,500 hours of operation or every three months.

We also recommend that you keep the burnertube and pilot assembly clean and free of dustand dirt. To clean these parts we recommendusing compressed air no greater than 30 PSI.Your local computer store, hardware store, orhome center may carry compressed air in acan. You can use a vacuum cleaner in theblow position. If using compressed air in acan, please follow the directions on the can.If you don't follow directions on the can, youcould damage the pilot assembly.

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

2. Inspect burner, pilot for dust and dirt.

3. Blow air through the ports/slots andholes in the burner.

Clean the pilot assembly also. A yellow tipon the pilot flame indicates dust and dirt inthe pilot assembly. There is a small pilot airinlet hole about two inches from where thepilot flame comes out of the pilot assembly(see Figure 27). With the unit off, lightlyblow air through the air inlet hole. You mayblow through a drinking straw if compressedair is not available.

Figure 27 - Pilot Inlet Air Hole

Pilot Assembly

Pilot Air InletHole

CABINETAir 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 cabi-net to remove dust.

15105566

OWNER’S MANUAL

TROUBLESHOOTING

Note: All troubleshooting items are listedin order of operation.

OBSERVED PROBLEM

When ignitor button is pressed in, there is nospark at ODS/pilot

ODS/pilot lights but flame goes out whencontrol knob is released

When ignitor button is pressed in, there is aspark at ODS/pilot but no ignition

POSSIBLE CAUSE

1. Ignitor electrode positioned wrong2. Ignitor electrode broken3. Ignitor electrode not connected to igni-

tor cable4. Ignitor cable pinched or wet

5. Broken ignitor cable6. Bad piezo ignitor

1. Gas supply turned off or equipmentshutoff valve closed

2. Control knob not fully pressed in whilepressing ignitor button

3. Air in gas lines when installed

4. ODS/pilot is clogged

5. Gas regulator setting is not correct6. Control knob not in pilot position

1. Control knob not fully pressed in2. Control knob not pressed in long enough

3. Equipment shutoff valve not fully open4. Thermocouple connection loose at con-

trol valve5. Pilot flame not touching thermocouple,

which allows thermocouple to cool,causing pilot flame to go out. This prob-lem could be caused by one or both ofthe following:A) Low gas pressureB) Dirty or partially clogged ODS/pilot

6. Thermocouple damaged7. Control valve damaged

REMEDY

1. Replace ignitor2. Replace ignitor3. Reconnect ignitor cable

4. Free ignitor cable if pinched by anymetal or tubing. Keep ignitor cable dry

5. Replace ignitor cable6. Replace control valve (piezo is part of

control valve)

1. Turn on gas supply or open equipmentshutoff valve

2. Fully press in control knob while press-ing ignitor button

3. Continue holding down control knob. Re-peat igniting operation until air is removed

4. Clean ODS/pilot (see Cleaning andMaintenance, page 14 ) or replace ODS/pilot assembly

5. Replace gas regulator6. Turn control knob to pilot position

1. Press in control knob fully2. After ODS/pilot lights, keep control

knob pressed in 30 seconds3. Fully open equipment shutoff valve4. Hand tighten until snug, then tighten

1/4 turn more5. A) Contact local natural gas company

B) Clean ODS/pilot (see Cleaning andMaintenance, page 14) or replace ODS/pilot assembly

6. Replace thermocouple7. Replace control valve

WARNING: Turn off and un-plug heater and let cool beforeservicing. Only a qualified ser-vice person should service andrepair heater.

CAUTION: Never use a wire,needle, or similar object to cleanODS/pilot. This can damage ODS/pilot unit.

Note: For additional help, visit DESAInternational’s technical service web siteat www.desatech.com .

www.desatech.com Continued

16 105566


OBSERVED PROBLEM

Burner(s) does not light after ODS/pilot is lit

Delayed ignition of burner(s)

Burner backfiring during combustion

Burner plaque(s) does not glow

Slight smoke or odor during initial operation

Heater produces a clicking/ticking noisejust after burner is lit or shut off

White powder residue forming within burnerbox or on adjacent walls or furniture

TROUBLESHOOTINGContinued

REMEDY

1. Clean burner orifice(s) (see Cleaningand Maintenance, page 14) or replaceburner orifice(s)

2. Replace burner orifice(s)3. Contact local natural gas company

1. Contact local natural gas company2. Clean burner orifice(s) (see Cleaning

and Maintenance, page 14) or replaceburner orifice(s)

1. Clean burner orifice(s) (see Cleaningand Maintenance, page 14) or replaceburner orifice(s)

2. Replace burner3. Replace gas regulator

1. Replace burner2. Contact local natural gas company3. Turn control knob until it locks at de-

sired setting

1. Problem will stop after a few hours ofoperation

1. This is common with most heaters. Ifnoise is excessive, contact qualified ser-vice person

1. Turn heater off when using furniturepolish, wax, carpet cleaners, or similarproducts

POSSIBLE CAUSE

1. Burner orifice(s) is clogged

2. Burner orifice(s) diameter is too small3. Inlet gas pressure is too low

1. Manifold pressure is too low2. Burner orifice(s) is clogged

1. Burner orifice(s) is clogged or damaged

2. Burner damaged3. Gas regulator defective

1. Plaque damaged2. Inlet gas pressure is too low3. Control knob set between locked

positions

1. Residues from manufacturing processes

1. Metal expanding while heating or con-tracting while cooling

1. When heated, vapors from furniture pol-ish, wax, carpet cleaners, etc. turn intowhite powder residue

www.desatech.com

17105566

OWNER’S MANUAL

TROUBLESHOOTINGContinued

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.

POSSIBLE CAUSE

1. Heater burning vapors from paint, hairspray, glues, etc. See IMPORTANTstatement above

2. Gas leak. See Warning statement attop of page

1. Not enough fresh air is available.2. Low line pressure3. ODS/pilot is partially clogged


2. Control valve defective

1. Foreign matter between control valveand burner


1. Not enough combustion/ventilation air

OBSERVED PROBLEM

Heater produces unwanted odors

Heater shuts off in use (ODS operates)

Gas odor even when control knob is in OFFposition

Gas odor during combustion

Moisture/condensation noticed on windows

REMEDY

1. Ventilate room. Stop using odor caus-ing 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 ventilation2. Contact local natural gas company3. Clean ODS/pilot (see Cleaning and

Maintenance, page 14)


2. Replace control valve

1. Take apart gas tubing and remove for-eign matter


1. Refer to Fresh Air for Combustion andVentilation requirements (page 4)

IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaningsupplies, 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.

www.desatech.com

18 105566


SPECIFICATIONSFA-3B FAS-3C FA-5B FAS-5C

Btu (Variable) 6,000/12,000/18,000 18,000 7,000/18,000/30,000 30,000Type Gas Natural Only Natural Only Natural Only Natural OnlyIgnition Piezo Piezo Piezo PiezoPressure Regulator Setting 6" W.C. 6" W.C. 6" W.C. 6" W.C.Inlet Gas Pressure* (in. of water)

Maximum 10.5" 10.5" 10.5" 10.5"Minimum 7" 7" 7" 7"

Dimensions, Inches (H x W x D)Heater 23 x 18.75 x 7 23 x 18.75 x 7 23 x 26 x 7 23 x 26 x 7Carton 26 x 21 x 9 26 x 21 x 9 26 x 28.5 x 9 26 x 28.5 x 9

Weight (pounds)Heater 19.8 20 28 28.5Shipping 23.3 23.5 33.5 34

Note: Dimensions listed are outer most points on the heater (includes control knobs and grill).

* For purposes of input adjustment.

Baltimore Electric1348 Dixwell AvenueHamden, CT 06514-03221-800-397-7553203-248-7553Parts Department

Portable Heater Parts342 N. County Rd. 400 EastValparaiso, IN 46383-9704All States219-462-74411-800-362-6951sales@[email protected]

FBD1349 Adams StreetBowling Green, KY 42103-3414270-846-11991-800-654-8534Fax: [email protected]

Master Parts Dist.1251 Mound Ave. NWGrand Rapids, MI 49504-2672616-791-05051-800-446-1446Fax: 616-791-8270www.nbmc.com

Washer Equipment Co.1715 Main StreetKansas City, MO 64108-2195KS, MO, AR816-842-3911www.washerparts.com

East Coast Energy Products707 BroadwayW. Long Branch, NJ 07764-1542732-870-88091-800-755-8809www.njplaza.com/ecep

Tarantin Tank Co.P.O. Box 6129Freehold, NJ 07728-6129908-780-93401-800-922-0724www.tarantin.com

Heater and Fireplace Store58 Halbe LaneCape May Court, NJ 08210-1110609-390-9774Parts Department

Dayton HardwareP.O. Box 275North Dayton StationDayton, OH 45404-0275All States937-258-3721OH 1-800-762-3426

Halco Enterprises208 Carter Drive, Unit 21West Chester, PA 19382-4500610-430-77171-800-368-0803www.halcoenterprises.com

LA Porte’s Parts & Service2444 N. 5th StreetHartsville, SC 29550-7704803-332-0191Parts Department

Cans Unlimited, Inc.P.O. Box 645Taylor, SC 29687-0013All [email protected]

PARTS CENTRALSThese Parts Centrals are privately owned businesses. They have agreed to support ourcustomer's needs by providing original replacement parts and accessories.

19105566

OWNER’S MANUAL

FAN KITS - UH1000FB ANDUHS1000FBFor all models. Provides better heat distri-bution. Makes heater more efficient. Com-plete installation and operating instructionsincluded.

Manually-controlled - UH1000FB. IncludesON/OFF switch.

Thermostatically-controlled - UHS1000FB.Includes three settings: ON/OFF/AUTO.

ACCESSORIESPurchase these heater accessories from yourlocal dealer. If they can not supply theseaccessories, contact your nearest Parts Cen-tral or call DESA International’s Parts De-partment at 1-800-972-7879 for referral in-formation. You can also write to the addresslisted on the back page of this manual.

EQUIPMENT SHUTOFFVALVE GA5010For all models. Equipment shutoff valvewith 1/8" NPT tap.

FLOOR MOUNTING STANDModels FA-3B and FAS-3B -UH3000BAModel FA-5B and FAS-5B -UH5000BA

For locating heater on the floor, away froma wall. Complete installation instructionsprovided with floor mounting stand.

TECHNICALSERVICEYou may have further questions about in-stallation, operation, or troubleshooting.

If so, contact DESA International’s Techni-cal Service Department at 1-800-323-5190.

You can also visit DESA International'stechnical service web site atwww.desatech.com.

SERVICEPUBLICATIONSYou can purchase a service manual from theaddress listed on the back page of thismanual. Send a check for $5.00 payable toDESA International.

SERVICE HINTSWhen Gas Pressure Is Too Low• pilot will not stay lit

• burner(s) will have delayed ignition

• heater will not produce specified heat

When Gas Quality Is Bad• pilot will not stay lit

• burner(s) will produce flames and soot

• heater will backfire when lit

You may feel your gas pressure is too low orgas quality is bad. If so, contact your localnatural gas supplier.

REPLACEMENTPARTSNote: Use only original replacement parts.This will protect your warranty coverage forparts replaced under warranty.

PARTS UNDER WARRANTYContact authorized dealer from whom youpurchased this product. If they are unable tosupply original replacement part(s), callDESA International’s Technical Service De-partment at 1-800-323-5190 for information.

When contacting your dealer or DESA In-ternational, 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 dateUsually, we will ask you to return the defec-tive part to the factory.

PARTS NOT UNDERWARRANTYContact authorized dealers of this product.If they can’t supply original replacementpart(s), call DESA International’s PartsDepartment at 1-800-972-7879 for referralinformation. When calling DESA Interna-tional, have ready:• model number of your heater• the replacement part number

20 105566


28

21

27

27

26

7

2

7

1

22

2324

25

3

4(See Detail)

ILLUSTRATEDPARTSBREAKDOWNFA-3B

Burner Assembly

11

10

6

18

16

15

14

7

9

7

13

12

8

19

17

5

4

20

20

20

5-15-2

ODS/Pilot Assembly

21105566

OWNER’S MANUAL

PARTS LISTFA-3B

This list contains replaceable parts used in your heater. When ordering parts, follow the instructionslisted under Replacement Parts on page 19 of this manual.

KEY PART NO.NO. FA-3B DESCRIPTION QTY.1 L98409-02 Cabinet Assembly 12 L98005-02 Lower Front Panel Assembly 13 L98410-02 Deflector Unit 14 L98103-03 Burner Assembly 15 L98071-01 ODS Pilot Assembly 1 5-1 098514-01 Thermocouple 1 5-2 L98071-07 Ignitor Electrode 16 L98072-01 ODS Mounting Bracket 17 L98817-01 Self Tapping Screw 78 L98034-01 Control Valve 19 L98411-01 Ignitor Line 110 L98028-01 Control Valve Bracket 111 L98054-01 Control Valve Fixed Nut 112 L98059-01 Control Valve Main Inlet Nut 113 L98115-02 Main Inlet Tube Assembly 114 L98124-02 Valve to Regulator Line Assembly 115 L98914-01 Pilot Regulator Assembly 116 L98125-02 Regulator to ODS Line Assembly 117 L98117-02 Burner Gas Line Assembly A 118 L98120-02 Burner Gas Line Assembly B 119 L98122-02 Burner Gas Line Assembly C 120 L99023-01 Injector 321 L98061-01 Control Knob 122 L98906-01 Control Rod Assembly 123 L99029-01 Pressure Regulator 124 L98801-01 Washer 225 L98806-01 Self Tapping Screw 226 L98010-02 Grill Guard 127 L98011-01 Grill Fastener 228 L98085-01 Mounting Bracket 1

PARTS AVAILABLE - NOT SHOWN

100642-01 Hardware Assembly 1104892-39 CSA/AGA Decal 1L98098-01 Gas Instruction Decal 1L98100-01 Inside Warning Label 1

22 105566


ILLUSTRATEDPARTSBREAKDOWNFA-5B

Burner Assembly

33

26

32

32

31

7

2

4(See Detail)

7

1

27

28

29 30

3

11

10

4

6

7 59

7

23

21

25

24

24

24

242422

20

13

128

14

18

25

17

19

15

16

TO "B1"

TO "B2"

TO "C1"

TO "C2"

5-15-2

ODS/Pilot Assembly

23105566

OWNER’S MANUAL

PARTS LISTFA-5B


KEY PART NO.

NO. FA-5B DESCRIPTION QTY.1 L98409-01 Cabinet Assembly 12 L98005-01 Lower Front Panel Assembly 13 L98410-01 Deflector Unit 14 L98103-01 Burner Assembly 15 L98071-01 ODS Pilot Assembly 1 5-1 098514-01 Thermocouple 1 5-2 L98071-07 Ignitor Electrode 16 L98072-01 ODS Mounting Bracket 17 L98817-01 Self Tapping Screw 78 L98034-01 Control Valve 19 L98411-01 Ignitor Line 110 L98028-01 Control Valve Bracket 111 L98054-01 Control Valve Fixed Nut 112 L98059-01 Control Valve Main Inlet Nut 113 L98115-01 Main Inlet Tube Assembly 114 L98124-01 Valve to Regulator Line Assembly 115 L98914-01 Pilot Regulator Assembly 116 L98125-01 Regulator to ODS Line Assembly 117 L98116-01 Burner Gas Line Assembly “C” 118 L98117-01 Burner Gas Line Assembly “C1” 119 L98118-01 Burner Gas Line Assembly “C2” 120 L98119-01 Burner Gas Line Assembly “B” 121 L98120-01 Burner Gas Line Assembly “B1” 122 L98121-01 Burner Gas Line Assembly “B2” 123 L98122-01 Burner Gas Line Assembly “A” 124 L99023-01 Injector 525 L99047-01 “T” Joint 226 L98061-01 Control Knob 127 L98906-01 Control Rod Assembly 128 L99029-01 Pressure Regulator 129 L98801-01 Washer 230 L98806-01 Self Tapping Screw 231 L98010-01 Grill Guard 132 L98011-01 Grill Fastener 233 L98085-01 Mounting Bracket 1


100642-01 Hardware Assembly 1104892-42 CSA/AGA Decal 1L98098-01 Gas Instruction Decal 1L98100-01 Inside Warning Label 1

24 105566


ILLUSTRATEDPARTSBREAKDOWNFAS-3C

Burner Assembly

15

16

13

19

23

22

11

9

12

21

16

14

10

4

23

20

1718

16

16 29

2

29

28

24

25

1

26

27

16

8

16

13

7

9

17

24

4(See Detail)

3

5 6

14-114-2

ODS/Pilot Assembly

25105566

OWNER’S MANUAL

PARTS LISTFAS-3C


KEY PART NO.NO. FAS-3C DESCRIPTION QTY.1 L98409-04 Cabinet Assembly 12 L98006-02 Front Panel Assembly 13 L98410-04 Reflector Unit 14 L98103-03 Burner Assembly 15 L98135-03 Thermostat Valve Assembly 16 L99066-01 Thermostat Valve Base 17 L98084-01 Self Tapping Screw 28 L98085-01 Mounting Bracket 19 L98133-04 Thermostat Outlet Tube Assembly 110 L98055-01 4-Way Connector 111 L98056-01 4-Way Connector Bracket 112 L98057-01 4-Way Connector Fixed Nut 113 L98411-01 Ignitor Line 114 L98071-03 ODS Pilot 1 14-1 098514-01 Thermocouple 1 14-2 L98071-07 Ignitor Electrode 115 L98072-01 ODS Mounting Bracket 116 L98817-01 Self Tapping Screw 717 L98124-04 Valve to Regulator Gas Line Assembly 118 L98914-01 Pilot Regulator Assembly 119 L98125-04 Regulator to ODS Line Assembly 120 L98117-04 “A” Burner Gas Line Assembly 121 L98120-04 “B” Burner Gas Line Assembly 122 L98122-04 “C” Burner Gas Line Assembly 123 L99023-01 Injector 324 L98115-08 Main Inlet Tube Assembly 125 L99029-05 Pressure Regulator 126 L98801-01 Washer 227 L98806-01 Self Tapping Screw 228 L98010-04 Grill Guard 129 L98011-01 Grill Fastener 2


100642-01 Hardware Assembly 1104892-44 CSA/AGA Decal 1L98098-01 Gas Instruction Decal 1L98100-01 Inside Warning Label 1L98080-02 Thermostat Sensing Bulb Clip 2

26 105566


ILLUSTRATEDPARTSBREAKDOWNFAS-5C

Burner Assembly

12

11

4

15

16 1413

16

26

24

2825

21

28

27

27

27

2727

2218

17

1910

20

23

9

TO "B1"

TO "B2"

TO "C1"

TO "C2"

16

1634

23433

29

30

1

31

32

16

8

16

13

7

9

17

29

4(See Detail)

3

5 6

14-114-2

ODS/Pilot Assembly

27105566

OWNER’S MANUAL

PARTS LISTFAS-5C


KEY PART NO.NO. FAS-5C DESCRIPTION QTY.1 L98409-03 Cabinet Assembly 12 L98006-01 Front Panel Assembly 13 L98410-03 Reflector Unit 14 L98103-01 Burner Assembly 15 L98135-03 Thermostat Valve Assembly 16 L99066-01 Thermostat Valve Base 17 L98084-01 Self Tapping Screw 28 L98085-01 Mounting Bracket 19 L98133-04 Thermostat Outlet Tube Assy 110 L98055-01 4-Way Connector 111 L98056-01 4-Way Connector Bracket 112 L98057-01 4-Way Connector Fixed Nut 113 L98411-01 Ignitor Line 114 L98071-03 ODS Pilot Assembly 1 14-1 098514-01 Thermocouple 1 14-2 L98071-07 Ignitor Electrode 115 L98072-01 ODS Mounting Bracket 116 L98817-01 Self Tapping Screw 1417 L98124-03 Valve to Regulator Gas Line Assembly 118 L98914-01 Pilot Regulator Assembly 119 L98125-03 Regulator to ODS Gas Line Assembly 120 L98116-02 Burner Gas Line Assembly “C” 121 L98117-01 Burner Gas Line Assembly “C1” 122 L98118-01 Burner Gas Line Assembly “C2” 123 L98119-02 Burner Gas Line Assembly “B” 124 L98120-01 Burner Gas Line Assembly “B1” 125 L98121-01 Burner Gas Line Assembly “B2” 126 L98122-03 Burner Gas Line Assembly “A” 127 L99023-01 Injector 528 L99047-01 “T” Joint 129 L98115-08 Main Inlet Tube Assembly 130 L99029-05 Pressure Regulator 131 L98801-01 Washer 232 L98806-01 Self Tapping Screw 233 L98010-03 Grill Guard 134 L98011-01 Grill Fastener 2


100642-01 Hardware Assembly 1104892-46 CSA/AGA Decal 1L98098-01 Gas Instruction Decal 1L98100-01 Inside Warning Label 1L98080-02 Thermostat Sensing Bulb Clip 2

KEEP THIS WARRANTY

WARRANTY INFORMATION

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 writtenwarranty. We make no other warranty, expressed or implied.

Model

Serial No.

Date Purchased

LIMITED WARRANTYGLO-WARM VENT-FREE NATURAL GAS HEATERS

DESA International warrants this product to be free from defects in materials and components for two (2) years from the date offirst purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicableinstructions. 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 heaterto 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 factoryreplacement parts. Failure to use original factory replacement parts voids this warranty. The heater MUST be installed by aqualified 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 becomedamaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. Travel, diagnosticcost, 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 THEPRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES ANDLIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MER-CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO TWO (2) YEARS ON ALL COMPONENTS FROMTHE DATE OF FIRST PURCHASE; AND DESA INTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THEPURCHASE PRICE OF THE PRODUCT AND DESA INTERNATIONAL SHALL NOT BE LIABLE FOR ANY OTHERDAMAGES 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 consequentialdamages, 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:

105566-01L98108-01REV. C02/00

2701 Industrial DriveP.O. Box 90004Bowling Green, KY 42102-9004

www.desatech.com

Patent Pending NOT A UPC

INTERNATIONAL

105566 01

Glo-Warm Natural Gas Heater Manual

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