UNITED STATES STOVE COMPANY
227 Industrial Park Road • P.O. Box 151 • South Pittsburg, TN 37380 • (423) 837-2100
Natural Gas Model
B9945N
Propane (LPG) Model
B9945L
VENT-FREE PEDESTAL GAS HEATER
INSTALLATION AND OPERATION INSTRUCTIONS
This appliance may be installed in an aftermarket* manufactured (mobile) home,
where not prohibited by state or local codes.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
This appliance is only for use with the type of gas indicated on the rating plate. This appli-
ance is not convertible for use with other gases.
This is an unvented gas-fired
heater. It uses air (oxygen) from
the room in which it is installed.
Provisions for adequate combus-
tion and ventilation air must be
provided. Refer to "Adequate
Combustion And Ventilation Air"
on page(s) 6 of this manual.
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.
~WHATTO DO IFYOU SMELL GAS
WARNING:
• Do not try to light any appliance.
Do not use a blower insert,
heat exchanger insert or other
accessories not approved
for use with this heater.
• 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.
Save this manual for
future reference.
851369B 6/00
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IMPORTANT SAFETY INFORMATION
INSTALLER: Please leave these instructions with the owner.
OWNER: Please retain these instructions for future reference.
IMPORTANT: Read these instructions carefully before installing or trying to operate this heater.
WARNING: Any change to this heater or its controls can be dangerous.
Improper installation or use of the heater can cause serious injury or
death from fire, burns, explosion or carbon monoxide poisoning.
1.
2.
CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning are similar to the
flu with headaches, dizziness and/or nausea. If you have these signs, obtain fresh air immediately.
Have the heater serviced as it may not be operating properly.
The installation must conform with local codes or, in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1.
3.
4.
5.
The 9945N/9945L vent-free gas heater system cannot be installed in a bedroom.
Do not install the heaters in a bathroom.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury
or property damage. Refer to this owner's manual. Installation and service must be performed by
a qualified installer; service agency or the gas supplier.
6.
Topreventmalfunctionand/orsooting, anunventedgasheatershouldbecleanedatleastannually
byaprofessionalserviceperson.Morefrequentcleaningmayberequiredduetoexcessivelintfrom
carpeting, etc. It is imperative that control compartments, burners and circulating air passageways
be kept clean.
7.
8.
9.
Correct placement of the ceramic fiber logs is necessary to avoid problems with sooting. Sooting
can settle on surfaces outside the heater and cause discoloration. See the appropriate sections of
this manual for instructions.
WARNING: Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner
flame patterns. Do not place a blower inside burn area of firebox. Ceiling fans may create drafts
that alter burner flame patterns. Sooting and improper burning will occur.
This is an vent-free 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 installation
guidelines.
10.
11.
Children and adults should be alerted to the hazard of high surface temperature and should stay
away to avoid burns or clothing ignition.
Young children should be carefully supervised when they are in the room with the appliance.
3
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IMPORTANT SAFETY INFORMATION
12. Do not place clothing or other flammable material near the appliance.
13. Keep appliance area clear and free from combustible materials, gasoline and other flammable
vapors and liquids.
14. Any safety screen or guard removed for servicing must be replaced prior to operating the heater.
15. This vent-free gas heater is intended to be smokeless. If logs appear to smoke, turn off the heater
and call a qualified service person. Initial burn off may cause slight smoke and odor during the first
four hours of operation.
16. Input ratings are shown in BTU per hour and are for elevations up to 2,000 feet. For elevations
above 2,000 feet, input ratings should be reduced 4 percent for each 1,000 feet above sea level.
Refer to the National Fuel Gas Code.
17. The appliance and its appliance main gas valve must be disconnected from the gas supply piping
system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).
18. The appliance must be isolated from the gas supply piping system by closing its equipment shutoff
valve during any pressure testing of the gas supply piping system at test pressures equal to or less
than 1/2 psig (3.5 kPa).
19. Do not use this room 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.
PRODUCT FEATURES
Features:
• Heating Efficiency - 99.9%
• Wide BTU Range: 27,000 - 39,900.
• Safe Operation - Oxygen Depletion Sensor (ODS).
• No Electricity Required.
• Fiber Ceramic Logs.
• Push-Button Piezo Ignitor.
• Clean Operation.
• Wide Bay Front.
• Easy Operation.
• Heats up to 1,200 square feet.
FIGURE1.9945Vent-FreePedestal
GasHeater.
4
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SPECIFICATIONS
NaturalGas
ManifoldPressureSetting4"w.c.
GasInletPressure
Maximum10-1/2"w.c.
Minimum 5" w.c.
Number
GasRate
Max BTU/Hr Min BTU/Hr
39,900 27,000
Model Number
9945N
Type
Manual
ofBurners
1
Propane/LPG
Note:Anexternalregulatorisrequiredtoreducesupplypressuretoamaximumof13"w.c.
ManifoldPressureSetting10"w.c.
GasInletPressure
Maximum13"w.c.
Minimum11"w.c.
Number
GasRate
Model Number
9945L
Type
Manual
Max BTU/Hr
39,900
Min BTU/Hr
ofBurners
27,000
1
Controls - Main control has 4 positions:
1. OFF - All gas to the burner is shut off at the control
2. IGN - Piezo ignitor allows ignition of the pilot without the use of matches or batteries
3. PILOT -Valve position to light/maintain a standing pilot
4. ON - Gas flow to complete system.
HIGH / LOW Control - Infinite control :
Rotate knob clockwise to LOW, counter clockwise to HIGH.
CONTENTS
9945Land9945NUnventedGasHeaters
1. PacketcontainingHomeowners/Installationinstructions.
2. Three(3)individuallywrappedfiberceramiclogs,refertoinstallationinstructions.
3. Unventedgasheater.
CHECK THAT ALL LISTED PARTS HAVE BEEN RECEIVED
GLOVES ARE RECOMMENDED WHEN HANDLING CERAMIC FIBER LOGS
TO PREVENT SKIN IRRITATION FROM LOOSE FIBERS. LOGS ARE
FRAGILE, HANDLE WITH CARE.
Carefullyinspectthecontentsforshippingdamageandimmediatelyinformyourdealerifanydamageisfound.
5
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ITEMS REQUIRED FOR INSTALLATION
ITEMS REQUIRED FOR INSTALLATION
Ensurethatthefollowingitemsareavailablebeforeproceedingwithinstallation:
•Externalregulator(forpropane/LPGonly)
•Pipingwhichcomplieswithlocalcodes
•Pipesealantapprovedforusewith
•Manualshutoffvalve
•Sedimenttrap
•Pipewrench
propane/LPG(resistanttosulfurcompounds)
CODES
Adheretoalllocalcodesorintheirabsence,thelatesteditionofTHENATIONALFUELGASCODEANSIZ223.1
orNFPA54whichcanbeobtainedfrom:
AmericanNationalStandardsInstitute,Inc.
1430Broadway
NationalFireProtectionAssociation,Inc.
BatterymarchPark
or
NewYork,NY10018
Quincy,MA02269
Duetohightemperatures,donotinstalltheheater:
• Wherecurtains,furniture,clothingorotherflammableobjectsarelessthan42"
fromthefrontoftheheater.
• Inhightrafficareas.
• Inwindyordraftyareas.
DO NOT PLACE CLOTHING OR OTHER FLAMMABLE MATERIAL ON OR NEAR THE
APPLIANCE.
ADEQUATE COMBUSTION AND VENTILATION AIR
This heater shall not be installed in a confined space or unusually tight construction unless provisions are
provided for adequate combustion and ventilation 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 1 perm (6 x 10 kg per pa-sec-m²) or less with openings gasketed or sealed, and
(b) Weather stripping has been added on openable windows and doors, and
(c) Caulking or sealants are applied to areas such as joints around window and door frames,
between sole
for plumbing, electrical,
plates and floors, between wall-ceiling joints, between wall panels, at penetrations
and gas lines, and at other openings.
The National Fuel3Gas Code defines a confined space as a space whose volume is less than 50 cubic
feet per 1,000 BTU per hour (4.8m per kw) of the aggregate input rating of all appliances installed in that
space and an unconfined space is defined as a space whose volume is not less than 50 cubic feet per
1,000 BTU per hour (4.8m 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.
6
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INSTALLATION
Thefollowingformulacanbeusedtodeterminethemaximum
heaterratingperthedefinitionofunconfinedspace:
BTU/HR = (L1+L2) Ft x (W) Ft x (H) Ft x 1000
50
Considertwoconnectingroomswithanopenareabetween,
withthefollowingdimensions:(SeeFig.2,Example)
L1=15-1/2Ft.,L2=12Ft.,W=12ft.,H=8Ft
50
H (8')
L2 (12')
=52800BTU/HR
W (12')
L1 (15-1/2')
Iftherewereadoorbetweenthetworoomsthecalculation
wouldbebasedonlyontheroomwiththeheater.
BTU/HR=(15-1/2)x(12)x(8)x1000
50
FIGURE 2.
=29760BTU/HR
Wheninstallingtheappliancedirectlyoncarpeting,tileorothercombustible
material,otherthanwoodflooring,theappliancemustbeinstalledonametalor
woodpanelextendingthefullwidthanddepthoftheappliance.
Iftheareainwhichtheheatermaybeoperatedissmallerthanthatdefinedasan
unconfinedspaceorifthebuildingisofunusuallytightconstruction,provide
adequatecombustionandventilationairbyoneofthemethodsdescribedinthe
NationalFuelGasCode,ANSIZ223.1,Section5.3,orapplicablelocalcodes.
Ensure the minimum clearances shown in FIGURE 3 are maintained for
accessibilityforpurposesofservicingandproperoperation.Leftandright
clearancesaredeterminedwhenfacingthefrontoftheheater.
Maintaintheseclearancesto
ensure adequate space
around air opening for
36"
8"
properoperation.
8"
Minimumclearancestocombustibles:
Topofheater....................................36"
Sidesofheater....................................8"
Frontofheater..................................42"
Rearofheater.....................................4"
42"
4"
FIGURE3.MinimumClearances
7
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MANTEL CLEARANCES
Ifplacingacustommantelabovetheheater,youmustmeetminimumclearancesbetweenmantel
shelfandthetopoftheheater.
Ifyourinstallationdoesnotmeetthebelowminimumclearances,youmust:
•Raisethemanteltoanacceptableheight,OR
•Removethemantel.
UNDERSIDEOF
MANTEL SHELF
MANTEL SHELF
DISTANCETO
UNDERSIDEOF
MANTEL
TOPOFHEATER
ALL MINIMUM
DISTANCESARE
IN INCHES
FLOOR
MINIMUM CLEARANCE
TO BACK WALL
8
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GAS CONNECTION
Aqualifiedgasapplianceinstallermustconnectthefireplacetothegassupply.
Consultalllocalcodes.
Usenewblackironorsteelpipeonly.Internallytinnedcoppertubingcanbeusedinsomeareas
whenpermittedbylocalcodes.Onlyusepipeof1/2"orgreaterdiametertoallowfullgas
volumetoheater.Excessivepressurelosswilloccurifthepipeistoosmall.
Amanualshutoffvalve,unionandplugged1/8"NPTpressuretappingpointmustbeinstalled
upstreamoftheheater(FIGURE4).
Asedimenttrapmustbeinstalledupstreamoftheheatertopreventmoistureandcontaminants
frompassingthroughthepipetotheheatercontrolsandburners.Failuretodosocould
preventtheheaterfromoperatingreliably(FIGURE4).
IMPORTANT:Loosenthepipeadapter
on the flex tube before installing to the
systempiping.
TO HEATER
STAINLESS
CONTROL VALVE
FLEXIBLE TUBE
PIPE
MANUAL
SHUTOFF VALVE
PIPE
COUPLING
TEE JOINT
SEDIMENT TRAP
PIPE NIPPLE
CAP
FIGURE5.GasConnection
CHECKGASTYPE:Thegassupplymustbethesameasstatedonheater'sratingplate.Ifthegassupplyis
different,DONOTINSTALLtheheater.Contactyourdealerforthecorrectmodel.
Connectingdirectlytoanunregulatedpropane/LPGtankcancauseanexplosion.
9
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GAS CONNECTION
The gasinletconnectionis3/8"NPT,madeat
thesideofthemaincontrolthroughtheareaat
therearofthepedestal.
Testallgasjointsfromthegasmetertothe
heaterforleaksusingsoapandwatersolution
aftercompletingconnection.DONOTUSE
AN OPEN FLAME.
GasInletConnection(3/8"NPT)
FIGURE6.RearViewof9945Vent-FreeGasHeater
GASPRESSURECHECK
Theheaterregulatorcontrolstheburnerpressurewhichshouldbecheckedatthepressuretestpointlocatedonthe
frontofthemaincontrolandisaccessiblethroughthefrontoftheheater.(seeFIGURE6).
Thepressureshouldbecheckedwiththeheaterburningandthecontrolsettohigh(HI).
Thepressureregulatorispresetandlockedtoavoidtampering.IfthepressureisnotasspecifiedinProduct
Specifications(Page5),contactyourdealerandreplacetheregulator.
FIGURE7.PressureTestPointLocation
10
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REMOVING FRONT SCREEN
1)Removethetwo(2)screwsandliftthefrontscreenslightlyup.(Fig.7A) Thentiltthebottomofthescreen
inward and downward. (Fig. 7B) 2) Lean the top of the screen toward you slightly (Fig. 7B) and then
proceed to carefully bring the screen straight back (Fig. 7C). NOTE: To reinstall the front screen, reverse
steps 1 & 2.
FIG 7A
FIG 7B
FIG 7C
LOG ASSEMBLY
LOG POSITIONING
Donothandletheselogswithyourbarehands! Alwayswearglovestopreventskinirritationfromceramicfibers.
Afterhandlinglogs,washyourhandsgentlywithsoapandwatertoremoveanytracesoffibers.
PROPER INSTALLATION SEQUENCE:
WARNING: Failure to position the
partsinaccordancewiththesedia-
grams or failure to use only parts
specificallyapprovedwiththisheater
may result in property damage or
personalinjury.
FIGURE8.LogSetAssembly
Thepositioningofthelogsiscriticaltothesafeandcleanoperationofthisheater.
Sootingandotherproblemsmayresultifthelogsarenotproperlyandfirmly
situatedintheappliance.Neveraddadditionallogsorembellishmentssuchas
pinecones,vermiculiteorrockwooltotheheater.
11
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OPERATING INSTRUCTIONS
Avoidanydraftsthataltertheburnerflamepatterns.Donotallowfanstoblowdirectlyintotheheater.Donotplace
ablowerinsideburnareaoffirebox.Ceilingfansmaycreatedraftsthatalterburnerflamepatterns.Sootingand
improperburningwilloccur.
Thisvent-freegasheaterisintendedtobesmokeless.Iflogsappeartosmoke,turnofftheheaterandcallaqualified
serviceperson.Initialburnoffmaycauseslightsmokeandodorduringthefirstfourhoursofoperation.
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING:Ifyoudonotfollowtheseinstructionsexactly,afireorexplosionmay
resultcausingpropertydamage,personalinjuryorlossoflife.
A.
B.
Thisapplianceisequippedwithanignitiondevice(Piezo)whichautomaticallylightsthepilot. IfPiezofails,
thenlightthepilotusingmatches. Refertomatchlightinginstructions(page14). Whenlightingthepilot,
followtheseinstructionsexactly.
BEFORELIGHTINGsmellallaroundtheapplianceareaforgas.Besuretosmellnexttothefloorbecause
somegasisheavierthanairandwillsettleonthefloor.
WHAT TO DO IF YOU SMELL GAS
•Donotattempttolightanyappliance.
•Donottouchanyelectricswitch;donotuseanyphoneinyourbuilding.
•Immediatelycallyourgassupplierfromaneighbor'sphone.Followthegassupplier'sinstructions.
•Ifyoucannotreachyourgassupplier,callthefiredepartment.
C.
D.
Useonlyyourhandtopushinorturnthegascontrolknob.Neverusetools.Iftheknobwillnotpushinor
turnbyhand,don'ttrytorepairit,callaqualifiedservicetechnician.Forceorattemptedrepairmayresult
inafireorexplosion.
Donotusethisapplianceifanyparthasbeenunderwater.Immediatelycallaqualifiedservicetechnician
toinspecttheapplianceandtoreplaceanypartofthecontrolsystemandanygascontrolwhichhasbeenunder
water.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
12
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OPERATING INSTRUCTIONS
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information on the
previous page.
2. Set the thermostat to lowest setting.
3. Turn off all electrical power and open the
access door.
4. Push in gas control (B) slightly and turn clock
wise
to "OFF".
5. Push "ON / OFF" switch to "OFF" position.
TOP VIEW OF BURNER ASSEMBLY
B
Ifthepilotdoesnotpopupwhenreleased, stop
and immediately call your service technician
or gas supplier. If the pilot will not stay lit after
several tries, turn control knob to "OFF" and
call your gas supplier.
D
A
9. Turn valve knob clockwise
to "ON".
10. Wait about one minute then turn burner switch
(D) to "ON". It will take a few minutes for the
thermopile located on top of the pilot to heat
up.
C
NOTE: Knob cannot be turned from "PILOT" to
"OFF" unless knob is pushed in slightly. Do not
force.
NOTE: If unit is equipped with remote "on-off" wall
switch, switch must be in "on" position for burner to
light.
6. Waitfive(5)minutestoclearoutanygas. Then
smell for gas, including near the floor. If you
smell gas, STOP! Follow "B" in the safety
information on the previous page. If you don't
smell gas, go on to the next step.
11. Adjust flame height with the high-low knob (C).
12. Turn on all electrical power to the appliance.
13. Close access door.
7. Depressknob(B)andturngascontrolknob
counterclockwise
to "Pilot".
NOTE: It is normal for the new heater to give off
some odor the first time it is burned. This is due to
the curing of the paint and any undetected oil from
the manufacturing process.
Itisrecommendedthatyouburnyournewheaterfor
at least two(2) hours the first time you use it. If
optional fan kit is installed, leave it turned off for the
break in period.
8. Push in knob (B) all the way and hold in.
Immediately light the pilot by pushing in on the
piezo button (A). Continue to hold the control
knob in for about one(1) minute after the pilot
islit. Releaseknobanditwillpopbackup. Pilot
shouldremainlit. Ifitgoesout,repeatsteps4
through8.
TURN OFF GAS TO APPLIANCE
1. Open access door.
2. Turn switch (D) to "OFF"
3. Unplug all electric power (optional blower) if service is to be performed.
4. Push in gas control knob slightly and turn clockwise
5. Close access door.
to the "OFF" position.
13
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OPERATING INSTRUCTIONS
Wait30secondsbeforereadjustingtheheaterwhenthecontrolhasbeenturned
downtoalowersetting.
MATCH LIGHTING INSTRUCTIONS
Ifthepilotwillnotlightusingthepiezoignitor,youcanlightthepilotwithamatch. First,locatethepilot. Thepilot
islocatedbetweentheburnertubeontherightend(facingtheunit),insidethefirebox. Tolightpilotwithamatch,
movethegascontrol(knobB,pg.13)tothepilotpositionandholddown. Lightmatchandplacenearpilot. Once
pilotislit,continuetoholdtheknobforabouttenseconds. Thenfollowsteps9thru13onpage13.
CHECKING FLAME APPEARANCE
Flamesfromthepilotandburnershouldbevisuallycheckedwhentheheaterisinstalled. Inaddition,aperiodic
checkoftheflamesshouldbemade.
PILOT FLAME
Thepilotflameshouldalwaysbepresentwhenthe
heaterisinoperationandshouldjusttouchthetopof
thethermocoupletip(FIGURE9).
Ifthepilotflamedoesnottouchthethermocouple,
thenthemainburnerisunlikelytofunctionreliably
(FIGURE10).
FIGURE10.IncorrectShapeofPilotFlame
FIGURE9.PilotFlame
CLEANING / SERVICING
Annual inspection and cleaning by your dealer or qualified service technician is recommended to prevent
malfunction and/or sooting.
Turnoffheaterandallowtocoolbeforecleaning.
WARNING
Removefrontscreen,(seepage11).Carefullyliftscreenfromlocatingstubsandsetasideduringcleaning.
Refer to instructions on page 11 for installation of screen. Do not operate the unit with the screen
removed.
Remove logs, handling carefully by holding gently at each end. Gloves are recommended to prevent skin
irritation from ceramic. If the skin becomes irritated, wash gently with soap and water. Refer to manual for
correct log placement.
14
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CLEANING / SERVICING
Periodic Cleaning
• Do not use cleaning fluid to clean logs or any part of heater.
• Logs - Brush with soft bristle brush or vacuum with brush attachment.
• Vacuum loose particles and dust from the front and rear burner, control, and piezo.
• Inspect burner's and air intake hole. Remove lint or particles with vacuum.
• External case should be dusted and wiped with a wet soapy cloth.
Annual Cleaning/Inspection
• Inspect and clean burner air intake holes.
• Inspect and clean all burner ports.
• Inspect ODS pilot for operation and accumulation of lint at air intake holes.
• Verify flame pattern and log placement for proper operation.
FLAME APPEARANCE
• Verify smooth and responsive ignition of main burner and rear burner.
In normal operation at full rate after 15 minutes the following flame appearance should be observed.
FLAMES
The flames behind log #1, and in between log #2, should be yellow with a blue base. (See Below,
Figure 11)
#2
#1
FIGURE 11. Flames - Natural Gas and LP Gas
15
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HEATER ASSEMBLY REPLACEMENT PARTS
9
7
18
10
6
19
17
3
5
8
16
15
2
13
14
12
4
11
1
20
16
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PARTS LIST FOR HEATER ASSEMBLY
KEY
1
PART #
B24767
B69198
24891
24768
24772
B24769
24771
24770
B24773
24774
B24457
89899
83323
24800
24799
69236
89916
89917
89824
83343
24892
24886
DESCRIPTION
QTY.
1
BASE
2
PEDESTALWELDMENT
FIREBOX BOTTOM (NATURAL)
FIREBOXBOTTOM(L.P.PROPANE)
FIREBOXWRAPPER
1
3
1
4
1
5
1
6
CABINETWRAPPER
FIREBOX TOP
1
7
1
8
FRONT
1
9
CABINET TOP
1
10
11
12
13
14
15
16
17
18
N/S
N/S
19
20
LOUVERFRAME
1
CONTROLDOOR
1
BRASSKNOB
1
8-32x3/8MACHINESCREW
WINDOW FRAME BRACKET (BOTTOM)
WINDOW FRAME BRACKET (TOP)
WINDOW FRAME ASSEMBLY
EXTRUDED LOUVER (LONG)
EXTRUDEDLOUVER(SHORT)
MAGNETIC LATCH
1
2
2
1
2
4
1
#10x1/2HXHDSCREWS
HEAT SHIELD
86
2
ROCKERSWITCHBRACKET
1
N/S = NOT SHOWN
17
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BURNER & LOG ASSEMBLY
17
15
16
11
1
12
5
14
4
6
3
2
10
9
7
13
8
18
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PARTS LIST FOR GENERATOR AND LOG ASSEMBLY
KEY
1
PART #
24777
24881
81198
81202
83464
89937
89938
83172
89921
89922
89855
89856
89841
89842
89920
C42373
80376
24888
89939
89940
89941
DESCRIPTION
QTY.
1
BURNERPLATE
2
CONTROLBRACKET
2
3
CONTROL VALVE (NATURAL)
CONTROL VALVE (LIQUID PROPANE)
10-32x3/8PHHDMACHINESCREW
BURNERGASLINE(#31ORIFICE-NAT.)
BURNERGASLINE(#49ORIFICE-L.P.)
#10A x 1/2 HX HD SCREW (2 to MOUNT PILOT)
"O.P. AMERICA" NAT. PILOT
"O.P. AMERICA" L.P. PILOT
PILOT TUBE (11")
1
-
1
4
4
5
1
-
1
N/S
6
11
1
-
1
7
1
8
3/16" LOXIT FITTING
1
9
3/16"COMPRESSIONNUT
3/16"COMPRESSIONSLEEVE
BURNER
1
10
11
12
13
14
15
16
17
1
1
ROCKERSWITCH
1
WIRE ASSEMBLY
1
LOGSUPPORT
2
REARUNILOG
1
FRONTLOG
1
CROSSLOG
1
N/S=NOTSHOWN
19
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TROUBLESHOOTING
Turnoffandletcoolbeforeservicing.Onlyaqualifiedservicepersonshould
serviceandrepairheater.
NOTE:Alltroubleshootingitemsarelistedinorderofoperation.
POSSIBLECAUSE
REMEDY
OBSERVEDPROBLEM
•Ignitorelectrodepositionedwrong
• Replace ignitor.
•Ignitorelectrodeisbroken
• Replace ignitor.
•Ignitorelectrodenotconnectedto ignitor • Reconnect ignitor cable.
cable.
Whenignitorbuttonispressed,thereis
nosparkatODS/Pilot.
•Ignitorcablepinchedorwetkeepignitor • Free ignitor cable if pinched by any
cabledry.
metal or tubing.
•Brokenignitorcable
•Badpiezoignitor
• Replace ignitor cable.
• Replace piezo ignitor.
•Applianceburningvaporsfrompaint,hair •Ventilateroom.Stopusingodor-caus-
spray,glues,etc.
ing products while heater is running.
Applianceproducesunwantedodors.
Applianceshutsoffinuse.
•Gasleak.
• Locate and correct all leaks.
•NotenoughfreshairisavailableforODS/ • Open window and/or door ventilation
Pilottooperate.
•Lowlinepressure.
• Contact local gas company.
•ODS/Pilotispartiallyclogged.
•Gasleak.
• Clean ODS/Pilot.
• Locate and correct all leaks.
Gasodorevenwhencontrolknobisin
OFFposition.
•Controlvalvedefective.
• Replace control valve.
•Gassupplyturnedofformanualshutoffvalve • Turn on gas supply or open manual shutoff
closed.
valve.
• Control knob not in PILOT position.
• Turn control knob while in PILOT position.
• Control knob not pressed in while in Pilot • Press in control knob while in PILOT posi-
Whenignitorbuttonispressed,thereis
sparkatODS/Pilot,butnoignition.
position
tion.
• Air in gas lines when installed.
• Continue holding down control knob.
Repeat igniting operation until air is re-
moved
•ODS/Pilotisclogged.
• Replace ODS/pilot assembly or get it
serviced
•Gasregulatorsettingisnotcorrect.
• Replace gas regulator.
• Press in control knob fully.
•Controlknobnotfullypressedin.
•Controlknobnotpressedinlongenough.
•Manualshutoffvalvenotfullyopen.
ODS/Pilot lights, but flame goes out
whencontrolknobisreleased.
• After ODS/pilot lights, keep control
knob pressed in 30 seconds.
• Fully open manual shutoff valve.
20
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TROUBLESHOOTING, CONTINUED...
OBSERVEDPROBLEM
POSSIBLECAUSE
REMEDY
• Thermocouple connection loose at
control valve.
• Hand tighten until snug, then
tighten 1/4 turn more.
• Contact local gas company.
ODS/Pilot lights, but flame goes out
When control knob is released.
(continued from page 20)
• Pilot flame not touching thermocouple,
which allows thermocouple to cool,
causing pilot flame to go out. This
problem could be caused by either
low gas pressure, or a dirty or partially
clogged ODS/pilot.
• Thermocouple damaged.
• Control valve damaged.
• Replace thermocouple.
• Replace control valve.
• Burner orifice is clogged.
• Burner orifice diameter is too small.
• Inlet gas pressure is too low.
• Clean burner or replace burner
orifice.
• Replace burner orifice.
• Contact qualified service person.
One or both burners do not
light after ODS/pilot is lit.
• Manifold pressure is too low.
• Burner orifice is clogged.
• Contact local gas company.
• Clean burner or replace burner
orifice.
Burner backfires during
combustion.
• Burner orifice is clogged or damaged.
• Burner is damaged.
• Clean burner or replace burner
orifice.
Slight smoke or odor during
initial operation.
• Gas regulator defective.
• Replace burner.
• Replace gas regulator.
• Vapors from paint or curing process
of logs.
• Problem will stop after a few hours
of operation. Run the heater with
the damper open if you have one,
or open a window for the first few
hours.
Logs appear to smoke after
initial operation.
• Log heater is intended to be
smokeless. Turn OFF heater and
call qualified service person.
• Turning control knob to HIGH
position when burner is cold.
• Turn control knob to LOW
position and let warm up for a
minute.
Heater produces a whistling
noise when burner is lit.
• Air in gas line.
• Operate burner until air is removed
from line. Have gas line checked
by local gas company.
• Clean burner or replace burner
orifice.
• Dirty or partially clogged burner
orifice.
• LP-regulator shut down due to inlet
pressure too high.
• Verify LP tank regulator is
installed and set to 11" to 13"w.c.
Replace regulator on heater.
No gas to pilot.
Ifthegasqualityisbad,yourpilotmaynotstaylit,theburnersmayproducesoot
andtheheatermaybackfirewhenlit. Ifthegasqualityorpressureislow,contact
yourlocalgassupplierimmediately.
21
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OPTIONAL KITS FOR THE 9945
THIS OPTIONAL F40 BLOWER KIT IS AVAILABLE WHERE YOU PURCHASED THIS
HEATER OR YOU CAN ORDER DIRECT FROM THE FACTORY BY CONTACTING
THE PARTS DEPARTMENT AT THE NUMBER AND ADDRESS ON THE BACK
PAGE OF THIS MANUAL.
BACK VIEW OF 9945
INDICATOR
ON
OFF
R
E
M
O
T
E
SKYTECH
1001
MODEL: RCK60
REMOTE CONTROL KIT
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OPTIONAL KITS FORTHE 9945continued...
MODEL: WSK60
WALL SWITCH KIT
10
21
32
c
50 60 70 80 90
10
21
32
c
50 60 70 80 90
MODEL: WTK60
WALLTHERMOSTATKIT
WIRING DIAGRAM FOR GENERATOR ASSEMBLY
THERMOPILE
CONTROL
WIRING
TERMINALS
ROCKER
SWITCH
23
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WIRING GUIDE FOR 9945
The following Wiring Guide is to help assist in the wiring of any combination of the Optional Kit listed below:
RCK60 - REMOTE CONTROL KIT
WSK60 - WALL SWITCH KIT
WTK60 - WALL THERMOSTAT KIT
IMPORTANT: Before ordering or installing any to the available kits, remember the following...
1) Not all Optional Kits will work together. Example: The (RCK60) Remote Control Kit,
the (WSK60) Wall Switch Kit, and the (WTK60) Wall Thermostat Kit cannot be used at the
time.
2) When using any of the three Optional Kits listed above, the Rocker Switch on the unit
must be set to "OFF".
3) If you choose to use any combination of the above Optional Kits, only one of those kits
can be used at a time. Example: If you have the Optional Remote Control Kit and the Optional
Wall Switch Kit, operation of the unit must be controlled by one or the other. If you want to
use the remote control, simply turn the Wall Switch to "OFF".
STANDARD WIRING FROM FACTORY:
CONTROL VALVE
S
it
ROCKER
SWITCH
E
A
WIRING OF THE RCK60 - REMOTE CONTROL KIT:
Remember the Rocker
Switch must be turned
to "OFF" while using
the Remote Control.
CONTROL VALVE
REMOTE CONTROL
SENSOR
S
it
ROCKER
SWITCH
E
A
PIGGYBACK
DISCONNECT
WIRING WITH THE WTK60 - WALL THERMOSTAT KIT:
10
21
32
c
WALL
50 60 70 80 90
THERMOSTAT
CONTROL VALVE
Remember the Rocker
Switch must be turned
to "OFF" while using
the Wall Thermostat.
10
21
32
c
50 60 70 80 90
S
it
ROCKER
SWITCH
E
A
PIGGYBACK
DISCONNECT
24
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WIRING GUIDE FOR 9945 continued...
WIRING WITH THE WSK60 - WALL SWITCH KIT:
Remember the Rocker
Switch must be turned
to "OFF" while using
the Wall Switch.
WALL
SWITCH
CONTROL VALVE
T
S
it
ROCKER
SWITCH
E
A
PIGGYBACK
DISCONNECT
WIRING WITH THE WTK60 - WALL THERMOSTAT KIT AND
THE RCK60 - REMOTE CONTROL KIT:
Note: When combining these Optional kits, only one kit can be used at a time. Example: If you want to control the
operation of this unit with the Remote Control then you must turn the Wall Thermostat "OFF". When trying to use two
Optional kits at once, one will always override the other.
PIGGYBACK
DISCONNECT
10
21
32
c
50 60 70 80 90
WALL
THERMOSTAT
CONTROL VALVE
10
21
32
c
50 60 70 80 90
REMOTE CONTROL
SENSOR
L
S
it
ROCKER
SWITCH
E
A
WIRING WITH THE WSK60 - WALL SWITCH KIT AND
THE RCK60 - REMOTE CONTROL KIT:
Note: When combining these Optional kits you must remember that only one of them can be used at a time. Example:
If you want to control the operation of this unit with the Remote Control then you must turn the Wall Switch "OFF". When
trying to use two Optional kits at once, one will always override the other.
PIGGYBACK
DISCONNECT
WALL
SWITCH
CONTROL VALVE
REMOTE CONTROL
SENSOR
L
S
it
ROCKER
SWITCH
E
A
For further information, contact our Customer Service Department at United States Stove Company, 227 Industrial Park
Road, P.O. Box 151, South Pittsburg, Tn. 37380. (423)837-2100
25
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NOTES
26
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LIMITED WARRANTY POLICY
Thisvent-freegasheateriswarrantiedforaperiodofoneyear,logsforoneyear,and
burnersforOneYear,fromdateofpurchaseagainstdefectsinmaterialorworkman-
ship. Thiswarrantycoversonlythecostofdefectivepartsandappliesonlytothe
originalconsumerpurchaser. Thereplacementofdefectivepartswillbewithout
charge. Thiswarrantydoesnotextendto(1)heaterdamagebyaccident,neglect,
misuse,abuse,alteration,negligenceofothers,includingtheinstallationthereofby
unqualifiedinstallers,(2)thecostsofremoval,reinstallationortransportationof
defectivepartsontheheater,or(3)incidentalorconsequentialdamage.
THIS WARRANTY IS EXPRESSLY IN LIEU OF OTHER WARRAN-
TIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTY OF
MERCHANTABILITY OF FITNESS FOR PURPOSE AND OF ALL
OTHEROBLIGATIONSORLIABILITIES, UNITEDSTATESSTOVE
COMPANY DOES NOT ASSUME FOR IT, ANY OTHER OBLIGA-
TION OR LIABILITY IN CONNECTION WITH THE SALE OR USE
OF THIS HEATER.
The heater (MUST BE INSTALLED BY A QUALIFIED INSTALLER) in accor-
dancewiththeinstructionsfurnishedwiththeunit. Thedefectiveheatershouldbe
returnedatyourexpensetothedealerfromwhomtheproductwaspurchasedoran
authorizedserviceagent. Anyproductspresentedforwarrantyrepairmustbe
accompaniedbyadatedproofofpurchase. Sincesomestatesdonotallowthe
exclusiononlimitationofincidentalorconsequentialdamages,oronhowlongan
impliedwarrantylasts,theabovelimitationsmaynotapplytoyou.
27
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OWNERS MANUAL
HOWTOORDERREPAIRPARTSOR"OPTIONS"
THIS MANUAL WILL HELP YOU TO OBTAIN EFFICIENT, DEPENDABLE
SERVICEFROMTHEFURNACE, ANDENABLEYOUTOORDERREPAIR
PARTSCORRECTLY.
KEEPINASAFEPLACEFORFUTUREREFERENCE.
WHEN WRITING, ALWAYS GIVE THE FULL MODEL NUMBER WHICH IS
ONTHENAMEPLATEATTACHEDINSIDETHEFRONTOFTHEHEATER.
WHEN ORDERING REPAIR PARTS OR OPTIONS, ALWAYS GIVE THE
FOLLOWING INFORMATION AS SHOWN IN THIS LIST:
1. The PART NUMBER
2. The PART DESCRIPTION
3. The MODEL NUMBER:
9945N
9945L
4. The SERIAL NUMBER
BEFORE INSTALLING YOUR HEATER, FILL IN THE SERIAL
NUMBER IN THE SPACE PROVIDED ABOVE FOR YOUR
RECORDS.
UNITED STATES STOVE COMPANY
227IndustrialParkRd., P.O.Box151
SouthPittsburg,TN 37380
Phone#: (423)837-2100
Website:WWW.USSTOVE.COM
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