Installation & Operating Manual
The Harman Magnum Stoker
Tested by:
DO NOT BURN WET COAL.
R15
OMNI-TEST Laboratory
SAFETY NOTICE
PLEASE READ THIS ENTIRE MANUALBEFORE YOUINSTALL AND USE YOURNEW ROOM HEATER. FAILURE TO
FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTYDAMAGE, BODILYINJURY, OR EVEN DEATH.
FOR USE IN THE U.S. AND CANADA.
IF THIS HARMAN STOVE IS NOT PROPERLY INSTALLED,AHOUSEFIREMAYRESULT. FORYOURSAFETY, FOLLOW
INSTALLATIONDIRECTIONS.
CONTACT LOCAL BUILDING OR FIRE OFFICIALSABOUT RESTRICTIONSAND INSTALLATIONINSPECTION
REQUIREMENTS INYOUR AREA.
CONTACT YOUR LOCAL AUTHORITY (SUCHAS MUNICIPAL BUILDING DEPARTMENT, FIRE DEPARTMENT, FIRE
PREVENTION BUREAU,ETC.) TO DETERMINE THENEED FORA PERMIT.
CETTEGUIDE D'UTILISATIONEST DISPONIBLEENFRANCAIS.CHEZVOTRECONCESSIONNAIRE DEHARMANSTOVE
COMPANY.
SAVETHESEINSTRUCTIONS.
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3
INTRODUCTION
ThisallnewdesignbyHarmanfeaturestheVerti-FlowStokerSystem.
THERMOSTAT
This unique system provides a very wide range ofheat output. The
Verti-FlowStokercanoperatefrom5000toover85,000btu'sautomatically.
Thisunit hasa100pound coalcapacityandcan provide85,000btu's
for17hoursorstretchout toover100hourswhen lessheat isrequired.
Athermostatisusedtoregulatetheheatoutputofthestove. Whenno
heatisneeded,thestokerstopsandonlyrunstomaintainthefire. Ifheatis
needed,thethermostatcanturnonthestokeratanytime. Afterthethermostat
issatisfied,thestokerwillturnofffortwelveminutesandthenrunforfour
minutes.
100 LBS.
COAL
The fourminutes "on" and twelveminutes "off" is a settingthat will
performwellundermostconditions.This"on"and"off"timecanbechanged
toprovidemoreorlessheatduringthemaintenancecycle.
WARNINGS
This unit must be connected to a chimney capable ofprovidinga .04
minimumdraftreading.WARNING!!Ifthechimneyhasnodraft,coalgases
mayescapefromtheunitandstovepipe.Thesegasesaretoxicand can be
fatal. It is recommended that a gas detector be installed to warn of this
condition. Checkwithyourlocalstovedealerforpurchasingagasdetector.
Never sleep in the same
room with any coal
burning stove.
TESTING INFORMATION
This unit hasbeen tested and approved by OMNI-TESTLabo-
ratoriesinaccordancetothelistedcodes.
DO NOT BURN WET COAL
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4
READ THIS
Always empty hopper when not burning for more than a
week. When left standing for long periods with wet coal,
the pusher block will rust and corrode, causing it to
seize. If the stoker is then turned " on" , damage to the
pusher assembly and feed motor will result. This will be
considered neglect and will void the warranty on those
parts. Always check to see if moving parts are free
before using if the unit has not been burned for a period
of time. This can best be determined by shaking the
adjuster rod.
Damp Coal
Wet Coal
Freshly delivered coal is watered down
to eliminate dust when loading and unloading.
Wet rice coal does not flow as well as damp or
dry coal. We do not recommend burning wet
coal, however, we realize if it's the only coal you
have it is better to burn it than freeze. If you
must burn wet coal, the feed rate must be in-
creased in order to get the same size fire. As the
wet coal in the hopper dries out, the feed rate
must be decreased. If you don’t, the feeder will
over-fire the stove and waste coal. Doing this
once or twice a year will not damage your stove
as long as it is hot and burning. The damage is
caused when the hopper has wet coal in it when
the stove is cold. This will cause rust and corro-
sion and it is totally the operator’s fault.
Usually after the coal dries for three
or four days, depending on conditions, it will
flow very well and feed properly. Feed rate
will be the same as dry coal.
Damp coal also should not be left in
the hopper of a cold stove.
DO NOT BURN WET COAL
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5
PACKING LIST
Parts inside feeder box
Pusher block
adjuster rod
Restricter Plate
wing nut
thermostat
adjuster tube
control box
adjuster
Inside bag
(2) terminals for thermostat wire
(4) 8-32 x 1/2 screws and nuts
motor cover
Parts inside stove
(2) grate inserts
main feeder body
firebricks
Parts inside hopper box
grate holder
hoppersupport
hopper lid
distribution blower
combustion blower
scraper
assembly
hopper
ash pan
DO NOT BURN WET COAL
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6
ASSEMBLY
adjuster rod
Pusher
block
slot
First,anotetoyou,thecustomer.
ThissectiononAssemblyisinthemanualforyourinformation
shouldyoueverneedtomoveyourunitandtohelpyouunder-
standhoweachpartisinstalled.
ItisnotintendedbyHarmanStoveCompanythatyou
assemblethisunit. ThisjobistobeperformedbyyourHarman
Dealerwhohasbeentaughthowtoassembleandexplainthe
operationofyournewstokertoyou.
dust tray
feed indicator
fig 1
Yourdealerwillalsotake adraft readingwith thestoker
burning. Thisreadingmustberecordedonthewarrantycouponin
ordertoactivateyourwarranty.
The assembly and set-up arefree. However, we do not
wishtoimplythatdeliveryandinstallationarefree.
adjuster tube
wing nut
adjuster
fig 2
DO NOT BURN WET COAL
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7
Feeder
Beginassemblybyslidingthepusherblockwiththe
adjusterrodfromthefrontthroughtheslotshownin fig.1.
Besurethepusherblockisturnedwiththeboltholeto
Blowers
feedindicatorside.
Next,holdpusherblockin themostrearward posi-
gasket
tionandslidetheadjustertubeovertheadjusterroduntilit
bottomsoutonthepusherblock. Threadtheadjuster
overtheadjusterrod.Threadwingnutontheendofthe
adjusterrod.
Make sure the gasket is in place on the feeder
Control Box
openingontherearoftheunit,asshowninfig3.Insertthe
stokerintotheopeningintherearoftheunit.Boltfastand
tighten with (2)5/16X 11/4bolts.
fig 3
Installthesmallerofthetwoblowersonthebottom
ofthefeederbyslidingitinto thebracketasfarasitwill
go.Installrestricterplateonblowerasshownbelowin
Fig. 4.
thermostat
Slidethe largerblowerintoplaceon thebottomrear
Cleanout Scraper
Install scraper as shown below with locking nut
on each side of the scraper. Tighten nuts when in the
rear most position to assure alignment. Cycle rod in
and out to clean unit.
lock nut
scraper
Restricter Plate
Control Box
Small blower
Largeblower
fig 4
DO NOT BURN WET COAL
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8
Hopper
Install hopper support on top rear of stoker.
Note that bolt holes in hopper support are slotted for adjust-
ment. Insert small end of hopper into the hopper slot on the feeder
as shown. Push top of hopper under the hopper support, causing
the slot on the bottom side of the support to hook onto the hopper.
The hopper support will spring up slightly for the hopper to go
under. If you have difficulty getting the hopper under, adjustment
may be necessary. Use slotted holes shown at left. Now the feed
motor cover can be installed.
hoppersupport
slotted holes
Grate
The grate is composed of four pieces:the grate holder, (2)
grate inserts, and grate angle. The grate angle is bolted to the
grate holder with (2) 3/8 X 1 1/4 bolts. Before installing the grate
holder, 3/8" round gasket must be checked in the groove on the
botton side of the grate holder, as shown in fig. 7. Check to be sure
the gasket has not been damaged.
Grate insert
fig 5
.
The grate holder must be installed through the top door
opening after the feeder has been installed.
Grate
angle
Locate the flange at the rear of the grate holder into the slot
on the feeder as shown below. Bolt the front end down with the
1/4 x 20 Allen bolt and nut provided. The rear end will be locked
in place by the flange. Before tightening the bolt be sure the grate
holder is back as far as possible and centered side to side on the
feeder opening.
Install grate inserts as shown at left. Divide the spaces
between the inserts equally and be sure they are not tight. The
spaces are needed for expansion.
Grate holder
fig 6
firebricks
Install firebricks
asShown
Gasket
IMPORTANT
Be sure the grate holder
is centered and back as
far as possible.
fig 7
DO NOT BURN WET COAL
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9
Top View
Front
18"
34"
barometric
damper
8"
16"
34"
8"
minimum 4"
IMPORTANT
UseonlyU.L.approvedfloor
board
Clearance to Combustibles
IMPORTANT
INSTALLATION
Takedraft readingbetweenthe
barometricdamperandthe
stove.Dothisonpilotmode.
Place the stoker a minimum of 4" to a com-
bustible wall from the rear of the hopper and a
minimum of 34" from the sides. The stove should
be placed on a noncombustible floor. Install a 6"
stove pipe from flue opening to chimney with a
barometric damper. Secure all pipe joints with
sheet metal screws. Plug power cord into a 120
volt receptacle.
draft
adjustment
Refer to the section on operation to light a
fire. With the stove burning and stabilized set
barometric damper at .04 to .06 on the draft meter.
We do not expect you to own a draft meter. There-
fore, have your dealer do set-up and fine tuning.
If your chimney will not produce .04 on the
draft meter, a draft inducer should be installed by
your dealer. The draft inducer will provide the
additional draft needed for proper operation.
DO NOT BURN WET COAL
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Fine Tuning Draft
10
With fire burning and stablized
take draft reading in flue pipe and note
the reading. Next take a reading in the
fire box by removing the bolt in the front
center of the unit.
While watching the draft meter,
close the restricter plate on the combus-
tion blower slowly, until the needle
reads about the same as it did on the
flue. An example would be a flue read-
ing of .05 and a firebox reading of .02.
Close the restricter plate until the
firebox reading is .04 to.05. Closing the
restricter plate will reduce the positive
pressure from the blower and increase
the negative pressure in the firebox.
WARNING!
If draft is at .00, carbon monoxide
will escape into the room. Too
much carbon monoxide can kill
you.
Timer settings shown above will perform well in most cases.
Verti-Flow Stoker Control
This section describes the features and opera-
tions of The Harman Verti-Flow Stoker Control.
The timers are adjustable from 0 minutes to 15
minutes in 1 minute steps. There are red lights on the
front panel to show proper operation of the timer.
One indicator shows power is applied to the unit.
The other 3 indicators show when power is available
at the adjacent receptacle.
The stoker control will be mounted on the side
panel of the feeder directly below the coal hopper.
The three receptacles and switch will be facing
forward. The power cord, 3 AMP fuse access port
and the thermostat connections to the rear.
The top receptacle provides power to the coal
feeder motor. Thus, the plug from the coal feeder
motor should be inserted into this receptacle.
The center receptacle provides power for the
combustion blower motor. Thus, the plug from the
combustion blower should be inserted into this
receptacle.
The bottom receptacle provides power for the
distribution blower motor. Thus, this final receptacle
should be connected to the plug from the distribution
blower motor.
Restricter Plate
DO NOT BURN WET COAL
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11
ofthe stove. NOTE: The bolt holes onthe blowers are not
used.
Installthecontrolboxonmountingpadprovidedonthe
side ofthe stoker with (4) #8-32bolts. NOTE:The recep-
taclesgotowardthefront.
Plugthegearmotorintothetop,thesmallcombustion
blowerintothemiddle,andthelargedistributionblowerinto
thebottomreceptacleonthecontrolboxasshown.Moreon
thecontrollater.
Thethermostatconnectionsonthebackpanelofthe
StokerControlare.25inchmalequickconnectterminals.
Thematingconnectors(supplied)shouldbe.25inchfemale
quickconnectorterminals. Thewireshouldbenosmaller
than22gauge.
Thethermostatconnectionsshouldonlybeconnected
acrossthethermostatswitchinsidethethermostatunit.This
switchisthetypewhichopens(turnsoff)whenthesetpoint
temperatureisreached,andcloses(turnson)whentheroom
temperaturefallsbelowthetemperature. (Thisisthetype
suppliedwiththeunit.)
Place thermostat in a central location.
Do not place it in an isolated room with
poor air circulation
TheACpowercord shouldbethelastconnection
made. Thepowercord should be plugged intoa 115AC
volt60hertzwalloutlet,whichhaspropergroundingavail-
able. This 115AC voltwalloutlet shouldalso becapable of
handling3ampsofcurrentbecausethisisthemaximum
amperagethisunitwilldraw.
Basic Theory of Operation
Afterthestokercontrolisproperlyinstalled,operation
ofthestovemaybegin.Thestoveoperationiscontrolled
fromthethermostat. Thismeansiftheroomtemperatureis
coolerthanthetemperaturesetonthethermostat,thestove
willbeginoperationwiththestokercontrolintheinactive
state. Oncetheroomtemperaturereachesthethermostatset
pointtemperature,thecombustionblowerandcoalfeeder
willturnoff,butthedistributionblowerwillstilloperate. At
thispoint,thestokercontrolhastakencontrolofthestove's
DO NOT BURN WET COAL
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12
operation. Thetimerwillcontinuetocontrolthestoveuntil
theroomtemperaturedropsbelowthethermostatsetpoint
temperature. Atthistime,thestovewilloperateconstantly
untiltheroomtemperaturereachesthethermostatsetpoint
againandthecyclerepeats.
Itshouldbenotedthatthetimeradjustmentsdohavea
0minuteposition. Thedefaultconditionsfortheseadjust-
mentssetfor0minutesareasfollows:"on time"0,"offtime"
0unitwillrunconstantly;"ontime"greaterthanO,"offtime"
0,unitwillrunconstantly;"ontime"0,"offtime"greaterthan
0,unitwillcycleonandoffwiththe"off"timebeingthe
controllingtimer. Itisnotrecommendedthatthe0minute
timebeusedonanyoftheadjustments. The0minutetimeis
aninvalidconditiononthestokercontrol.
Whenthestokercontrolfirsttakescontrolinthe
maintenancecycle,twotimersareactivated,the"distribution
blower"timerandtheunit"off"timer.
The"distributionblower"timerisanoffdelaytimer.
Thismeansafterthecombustionblowerandcoalfeederturn
offthedistributionblowerwilloperateforaprogrammed
periodoftimebeforeturningoff. Thestokercontroltiming
rangeforthisfunctionis0minutesto15minutes.
Thepurposeofhavingtheoffdelaytimerontodistri-
butionbloweristoexhausttheexcessheatinthestovethat
isinherentafterthecombustionblowerandcoalfeederturn
off. Forthis reason,itisnotrecommendedthat a0time
settingbeused.Thiswillminimizeanypossibilityofover-
heatingthestove.
Theothertimer,whichbeginswhenthestokercontrol
firsttakescontrol,isthe"off"timer.Thisfunctionofthe
stokercontrolisadjustablefrom0minutesto15minutes.
Programmingthistimerwithavalveletsthestokertimer
knowhowlongtokeepthecombustionblowerandthecoal
feederturnedoffbetweenmaintenancecycles.
Oncetheofftimerhasfinishedtimingandtheroom
temperaturehasnotfallenbelowthethermostatsetpoint,the
"on"timerfunctionwillbegin. Theprogrammablerangefor
thisfunctionisalso0minutesto15minutes.Oncethe"on"
timerhasstarted,alloutput(combustionblower,distribution
DO NOT BURN WET COAL
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13
blower,coalfeeder)receptacleswillbecomeactiveforthepro-
grammedamountoftime.When"on"timerhasfinishedtiming,the
stokercontrolwillrecycleandthe"distributionblower"timeralong
withthe"off"timerwillonceagainbecomeactive.
Thefinaloperatorinterfaceistheswitchonthefrontpanel
adjacenttothereceptacles. Thisswitchinthe"on"positionallows
powertothecoalfeedermotorreceptacle. Inthe"off"position,
powerwillberemovedonlyfromthecoalfeedermotorreceptacle.
Thisswitchinthe"off"position,willstopthecoalfrommoving
acrossthegratesandallowforeasylightingofthefire.Oncethe
firehasbeenestablishedmovetheswitchtothe"on"position.
How to Operate the Stoker Control
Thereare fouroperatorinterfaces onthe stokercontrol.
The operatorinterfaces areone rockerswitch andthree, 16-
positionrotaryswitches.
Therockerswitchisapowerswitchthatcontrolsonlythe
coalfeedermotor. Fornormaloperation,thisswitchshouldbe
placedinthe"on"position. Thisswitch'soperationcanbeverified
byasmallredlightabovethecoalfeederreceptaclebeingonwhen
theswitchison.
Ifthe stoveneedstobe shutdown,simplyplace therocker
switchinthe"off"position. Thesmalllightabovethecoalfeeder
receptaclewillturnoff.
Theotherthreeswitchesarethecustomer's adjustmentsfor
thetimers(ontime,offtime,distributionblowertime).These
switchescanadjusteachtimerindividuallyfrom1minuteto15
minutesin1minuteincrements. Donotsettimersto0.
The"on"timeandthe"off"timeshouldbeprogrammedtoa
minimumtimethatkeepsthecoalburningduringthemaintenance
cyclingmode. Thedistributionblowertimeshouldbeprogrammed
foratimewhichislongenoughtomovetheexcessheatfromthe
stovetotheroomheated. Ifthistimeisprogrammedforalonger
timethanthe"off"timethedistributionblowerwilloperatecon-
stantly. Thiswillhavenodamagingeffectonthestokercontrol.
Recommendedtimersettingstostartare,"on"4minutes,
DO NOT BURN WET COAL
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14
OPERATION
"off"12minutes,extendtimer2minutes. Youmayfindthatthese
settingsproducetoomuchheatinpilotmode. Ifso,youcanreduce
the"on"timeandincreasethe"off"time. However,beawarethat
you can gotoo farand havethe fire go out. It is bestto adjust one
minuteatatime.
Tostart afire youfirst pourrice coalinto thehopper. With the
thermostatturnedupandthestokerrunning,thecoalwillbeginto
feedonto thegrate insidethestove. Thisprocess canbe speededup
byadjustingthefeedratetothemaximumposition. Whenthecoal
startsto comeup outofthegrate andis almostup tothe areawhere
theholesstart, turnthefeedratebacktoabout3/8"and turnoffthe
feedmotorwiththe switchonthe sideofthestoker. Placesome
feed indicator
crumblednewspaperandfinekindling(6"to8"long)onthegrateand
ignite. Whenkindlingisburninggood,addsomericecoalontopof
it. Afterthecoalisburning,the feedmotorcanbeturnedonandthe
coalfirewillcontinuetogetlarger. Freshcoalwillcontinuetobe
pushedontothegrateandasheswillbepushedoffthegrate. The
feedratemustbeadjustedsothe coalisburnedupandturnedto
ashesbefore thecoalgets oneinchfrom theend ofthegrate. Too
highafeedratewillpushunburnedcoaloffthecoalgrate,therefore
Feed Adjustment
Adjust feed rate by turning adjuster clockwise to
increase and counterclockwise to decrease. Each complete
turn will move the fire about 1".
The feed indicator on the side of the feeder shows how
far the pusher moves each stroke. There are dots above the
indicator spaced 1/8 " apart. A movment of one dot would
give a low burn, two dots medium and three dots high.
Lock adjuster with wing nut after adjusting.
See drawings at left.
Low feed rate
WASTING COAL
POSSIBLE DAMAGE TO UNIT
Over Fired, No Good
Max feed rate
DO NOT BURN WET COAL
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15
Cycle in and out
willnotburncompletely.
Afterthefireisburningandthefeedrateisadjusted,youcan
nowsetthethermostattothedesiredtemperature.
MAINTENANCE
Witheachhopperofcoalthatisburnedapproximatelyone
ashpanfullofashesmustberemoved.Failuretoremovetheashes
willresultinablockedupgrateandthefirewillnotburnproperly.
Remember,theashpanwillbehot,soalwayswearprotectivegloves.
Weekly:
Thesmalltrayinthesideofthestokershouldberemovedand
emptied.
Thespringhandlelocatedattherearoftheflue-pipeshouldbe
cycledinandoutseveraltimes.Thisactioncleanstheinteriorofthe
heatexchangerandcausesthedusttofallintotheashpan.
Every3Months:
Slide open
clean-out slide
Thegrate"clean-out"slideshouldbeopenedandreclosedas
shownindrawingsatleft.
Inthe"closed"position,besurethe"grate clean-out"plateslide
isstraightacrossasshown.
Theeasiestwaytohandlethisslideisthroughtheashdoorwith
apokerinserted intotheholeat theend.
Thepurposeofthisoperationistoletanyflyashbuild-upunder
thegratefallintotheashpan.
Slide closed
Thisoperationcanbeperformedwhiletheunitisburning.
However,youshouldfirstlowerthethermostattolowerthestove
temperatureandbesureyouarewearingprotectivegloves.
DO NOT BURN WET COAL
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16
Thisoperationcanalsobeperformedwhentheunitisnotburning
byliftingoutthegrateinsertsandremovingflyashwiththevacuum
cleaner.
Annually:
Attheendoftheheatingseasonisthebesttimetoperformannual
maintenance. Thereasonisrustandcorrosioncanformmuchfasterin
thehighhumidityofsummer.
Removeallcoalfromhopper.
Removeallashes.
Removeandcleanfluepipe.
Checkchimneyandcleanifnecessary.
è
IMPORTANT
Removehopperandcheckforrustatbottomedges.Ifrustis
found,removeitwithafileorsandpaperandpainttheareawith spray
paintavailablefromyourdealer.
Checkthefeederforrustandcorrosionwherethehopperfitsinto
it.
Checkthe pusherblocktosee ifitmoves freely.This canbest be
donebyshakingtheadjusterrod.Ifitdoesnotmovefreely,itshouldbe
removedandcleaned.Alsoremoveanyrustorcorrosionfromthearea
wherethepusherblockslidesandspraywithWD-40orotherrust
preventingspray. Toremovepusherblock--Removecover,remove
wingnut,adjuster,andadjustertube.Removemotormountwithmotor
inplaceandcordstillattached.Swingpusherassemblyupashighasit
willgo.RemovefeedindicatorfromsidewithAllenwrench. Nowthe
pusherblockcan beremoved. To reinstall--justreverse the
procedure.Ifthepusherblockcannotbemoved,callyour
dealer.
è
IMPORTANT
Alwaysemptyhopperwhennotburningformorethana
week. Whenleftstandingforlongperiodswithwetcoal,the
pusherblockwillrustandcorrode,causingittoseize. Ifthe
stokeristhenturned"on",damagetothepusherassemblyand
feedmotorwillresult. Thiswillbeconsideredneglectandwill
DO NOT BURN WET COAL
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17
voidthewarrantyonthoseparts. Alwayschecktoseeifmovingparts
arefreebeforeusingiftheunithasnotbeenburnedforaperiodoftime.
Thiscanbestbedeterminedbyshakingtheadjusterrod.
TROUBLE-SHOOTING
FEEDING PROBLEMS
Wet Coal --Wet coal does not flow the same as dry coal. There-
fore,the feedratewillchangewith wetcoal.Ifitistoo wet,it maynot
feed at all. Wet coalcan also cause a sulfurodor.
WrongSizeCoal--The Verti-FlowSystemisdesigned toburn
rice(orbuckwheatcoalifriceis notavailable)Ifbuckwheatcoalis
burned,raise thedraftsettingfrom.04to.06. Largercoalwillnotfeed
orburnproperly.
HopperBlocked--Sometimeswood, paper,orotherforeign
objectsaccidentlyendupinyourcoalbinandcanslowdownorblock
theflowofcoal. Youmayhave toemptythehopperto findtheblock-
age.
PusherOutOfAdjustment--Thiscanhappenwhenmorethan
onepersontends thestoker. One persondoesnottellotherswhat
adjustmentsweremade.
GasAlarmBuzzesorSulfurOdorExists--Asulfursmellmaybe
noticedwhenthetopdoorisopenedduringoperationwithwetor
dampcoal. Thisisnormal.However,itisnotrecommendedthatwet
coalbeused orthe topdoorbe openedformore than afew seconds
whileburningtoinspectthefire.
Lackofdraftoradowndraftinthechimneywillcausegasesto
escapefromtheunit. Nostovewillfunctionproperlywithoutdraft.Any
draftproblemshouldbecorrectedbeforeuse.
Adraftinducermaybeinstalledtoincreasedraftinmarginal
situations.
DO NOT BURN WET COAL
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18
Theinstallationshouldbeperformedbyyourdealerwhoisfactory
trainedtocorrectanyproblemoninitialstart-up. Afterproperinstallation,
manyyearsoftrouble-freeoperationcanbeexpected.
Stoker ControlTrouble-Shooting
Thistrouble-shootingguideisdesignedtohelpthecustomerfindbasic
problemsexternaltothestokertimer.Ifaproblemcannotbelocatedby
usingthisguide,servicingofthestokercontrolorreplacementmaybe
required. Thisshouldbedonebyqualifiedpersonnel.
PROBLEM:Nomotorsorlightswillturnon.
Checkthe AC powercord to the stokercontrol.
Checkthe3ampfuseonthe sidepanelofthe stokertimer.(Replace
onlywitha3amp slowblowfuse.)
PROBLEM:Lightsonthestokercontrolareon,butmotorswillnot
operate.
ChecktheACpowerplugsfromthemotors(aretheysecurely
pluggedintothecorrectoutlet.)
PROBLEM:Oneofthemotorswillnotoperate.
Checkifthelight abovethereceptacle islit. Checkthe ACpower
plugfromthemotor(isitsecurelypluggedintothecorrectoutlet.)
PROBLEM:Themotorsarecyclingonandoff,butnotinthecorrect
order.
ChecktheACpowerplugsfromthemotors(aretheysecurely
pluggedintothecorrectoutlet.)
PROBLEM:Coalfeedermotorwillnotturnon.
Checkiftheredlightislit,ifnot,checkifthefeedmotorswitchis
turnedon.
PROBLEM:Themotorsturnonandoffasprogrammed,butthe
roomtemperatureisbelowthethermostatsetting.
DO NOT BURN WET COAL
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19
Checktheconnectionsfromthestokercontroltothethermostat.
Checkthethermostatforproperoperation.
PROBLEM:Themotorsdonotturnoffevenwhentheroomtempera-
tureisabovethethermostatsetpoint.
Checkthattheprogrammedofftimeisnotfor0minutes.
DO NOT BURN WET COAL
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20
Feeder Parts
8
7
1
C
J
9
G
H
16
G
D
15
G
G
6
10
C
J
3
13
J
7
D
14
F
12
2
11
E
I
22
A
B
18
21
4
D
C
B
B
17
20
L
A
K
K
19
5
K
A
A
1. (2)grate inserts
2. grate holder
3. grate angle
16. motor cover
17. cam arm cover
18. cam arm
A (4) 1/4 x 5/8
B (3) 1/4 " nut
C (3) 3/8 x 1 1/4
4. feeder body
5. clean-out slide
6. pusher arm
7. (2) pillow block bearings
8. feed motor
19. dust tray
D (3) 3/8 flat washer
E (2) 3/8 nuts
20. feed indicator
21. cam bearing
22. gasket
F (1) 1/4 x 1 1/4 Allen
G (4) 10-32 x 5/8 Allen
H (1) 8-32 screw and nut
I (1) 1/4 x 1/2 grade 8
J (3) 5/16 x 3/4
9. capacitor
10. motor mount
11. pusher block
12. adjuster rod
13. adjuster tube
14. adjuster
K (3) 5/16 nuts
L (1) 1/4 x 5/8 button head
15. wing nut
DO NOT BURN WET COAL
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21
Domestic hot water coil hookup
temperature
pressure
relief valve
aquastst
automatic air
valve
valve
electric hot water heater
circulator pump
valve
Cut holes with 1 1/8" hole saw where
shown . Install coil with hardware provided.
Hook up as shown above. If distance between
unit and tank is less than 10 feet the circula-
tor pump and aquastat are not needed. Aq-
uastat is to turn on pump when water reaches
about 140 degrees in systems over 10 feet
apart.
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22
Hot Air Duct Option
6" starting collar
Important
Don't forget to retighten the
bolt after removing the
plate.
Your stoker has a built-in feature that lets you take the air that normally blows out from the front and
puts it out the top into a 6" duct.
To do this, remove the 6" round plate from the top of the unit by removing the bolt located in the top of
the firebox. A 3/4" wrench will fit the bolt. Remove the plate from the front by using the small handle on the
plate. Turn bolt all the way in and tighten.
Next, block off the front blower opening with a piece of heavy fiberglass rope. Insert rope through the
6" duct opening and push front to block off the front air passage.
Now, install a 6" starting collar in the 6" hole and run duct to desired room.
NOTE: THIS DUCT OPTION IS INTENDED TO SUPPLY ONE REGISTER ONLY,
WITH A MAXIMUM DISTANCE OF 20 FEET FROM UNIT.
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23
HARMAN GOLD WARRANTY
6 YEAR TRANSFERABLE LIMITED WARRANTY
(Residential)
1 YEAR LIMITED WARRANTY (Commercial)
Harman Stove Company warrants its products to be free from defects in material or workmanship, in normal
use and service, for a period of 6 years from the date of sales invoice and for mechanical and electrical failures, in
normal use and service, for a period of 3 years from the date of sales invoice.
If defective in material or workmanship, during the warranty period, Harman Stove Company will, at its option,
repair or replace the product as described below.
The warranty above constitutes the entire warranty with respect to Harman Stove Company products.
HARMAN STOVE COMPANY MAKES NO OTHER WARRANTY, EXPRESSED OR IMPLIED, INCLUDING
“ANY” WARRANTY OF MERCHANTABILITY, OR WARRANTY OF FITNESS FOR A PARTICULAR
PURPOSE. No employee, agent, dealer, or other person is authorized to give any warranty on behalf of Harman Stove
Company. This warranty does not apply if the product has been altered in any way after leaving the factory. Harman
Stove Company and its agents assume no liability for “resultant damages of any kind” arising from the use of its
products. In addition, the manufacturer and its warranty administrator shall be held free and harmless from liability
from damage to property related to the operation, proper or improper, of the equipment.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE
HEREOF.
THESE WARRANTIES APPLY only if the device is installed and operated as recommended in the user’s
manual.
THESE WARRANTIES WILL NOT APPLY if abuse, accident, improper installation, negligence, or use
beyond rated capacity causes damage.
HOW TO MAKE A CLAIM - Any claim under this warranty should be made to the dealer from whom this
appliance was purchased. Then contact is made with manufacturer, giving the model and serial numbers, the date of
purchase, your dealer’s name and address, plus a simple explanation of the nature of the defect. Extra costs such as
mileage and overtime are not covered. Nuisance calls are not covered by these warranties.
THIS WARRANTY IS LIMITED TO DEFECTIVE PARTS - REPAIR AND/OR REPLACEMENT
AT HARMAN STOVE COMPANY’S OPTION AND EXCLUDES ANY INCIDENTAL AND CONSE-
QUENTIAL DAMAGES CONNECTED THEREWITH.
WARRANTY EXCLUSIONS: Failure due, but not limited to, fire, lightning, acts of God, power failures and/or
surges, rust, corrosion and venting problems are not covered. Damage and/or repairs including but not limited to;
remote controls, filters, fuses, knobs, glass, ceramic brick panels, ceramic fiber afterburners, door packing, tile,
ceramic log sets, paint, batteries or battery back-up and related duct work are not covered. Also excluded from this
warranty are consumable or normal wear items including but not limited to; flame guides, grates, coal bars, after-
burner hoods, fire brick, gaskets. Additional exclusions for corn stoves are burnpot housing weldment, burnpot grate
weldment (pellet or corn), burnpot front plate (pellet or corn), burnpot front plate lock, corn auger extension, ceramic
insert, and ceramic insert plate. Additional or unusual utility bills incurred due to any malfunction or defect in equip-
ment and the labor cost of gaining access to or removal of a unit that requires special tools or equipment are not
covered. Maintenance needed to keep the stove in “good operating condition” is not covered. This includes, but is
not limited to, cleaning, adjustment of customer controls and customer education. Labor, materials, expenses and/or
equipment needed to comply with law and/or regulations set forth by any governmental agencies are not covered.
This Warranty provides specific legal rights and the consumer may have other rights that vary from state to
state.
In the event of change in ownership, the remaining portion of this warranty may be transferred to the new
owner by sending the new owner information and a transfer fee of $25.00 US to the Harman Stove Company.
PLEASE READ THE LITERATURE BY THE MANUFACTURER FOR THE VARIOUS ACCESSORY
DEVICES. THE MANUFACTURER WARRANTS THESE ACCESSORY DEVICES, NOT HARMAN STOVE
COMPANY OR THEIR WARRANTY ADMINISTRATOR. FURTHERMORE, THESE ACCESSORY DEVICES
MUST BE INSTALLED AND USED ACCORDING TO THE RECOMMENDATIONS OF THE MANUFAC-
TURER.
REMEDIES - The remedies set forth herein are exclusive and the liability of seller with respect to any contract
or sale or anything done in connection therewith, whether in Contract, in tort, under any warranty, or otherwise, shall
not, except as herein expressly provided, exceed the price of the equipment or part of which such liability is based.
CLARIFY - The above represents the complete warranty, which is given in connection with stoves, manufac-
tured by Harman Stove Company. No other commitments, verbal or otherwise, shall apply except by a written
addendum to this warranty.
DO NOT BURN WET COAL
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