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Harman® • PF-120 Owner’s Manual_R6 • 2014 -___ • 08/151 3-90-08120c

Please read this entire manual before installation and use of this pellet fuel-burning room heater. Failure to follow these instructions could result in property damage, bodily injury or even death.

• Donotstoreorusegasolineorotherflammablevaporsandliquidsinthevicinityofthisoranyotherappliance.

• Donotoverfire-Ifanyexternalpartstartstoglow,youareoverfiring.Reduce feedrate.Overfiringwillvoidyourwarranty.

• Complywithallminimumclearancestocombustiblesasspecified.Failuretocomplymaycausehousefire.

Checkbuildingcodespriortoinstallation.• InstallationMUSTcomplywith local, regional, state

andnationalcodesandregulations.• Contactlocalbuildingorfireofficialsaboutrestrictions

andinstallationinspectionrequirementsinyourarea.

Testedandapproved forwoodpellets.Burningof anyothertypeoffuelvoidsyourwarranty.

Hot glass will cause burns.• Donottouchglassuntilitiscooled• NEVERallowchildrentotouchglass• Keepchildrenaway• CAREFULLYSUPERVISEchildreninsameroomas

stove.• Alertchildrenandadultstohazardsofhightemperatures. High temperatures may ignite clothing or other

flammable materials.• Keepclothing,furniture,draperiesandotherflammable

materialsaway.

HOT SURFACES!

Glassandothersurfacesarehotduringoperationandcooldown.

NOTETo obtain a French translation of thismanual, pleasecontactyourdealerorvisitwww.harmanstoves.comPourobtenirunetraductionfrançaisedecemanuel,s’ilvous plaît contacter votre revendeur ou visitezwww.harmanstoves.com

Model(s):PF-120 Pellet Furnace

NOTICE: SAVE THESE INSTRUCTIONS

CAUTION!

CAUTION!

WARNING!

WARNING!

Owner’s ManualCare and Operation

INSTALLER: Leave this manual with party responsible for use and operation.OWNER: Retain this manual for future reference.Call your dealer for questions on Installation, Operation, or Service.


OMNI-Test Laboratories, Inc.Report #/Rapport #135-S-02b-2Certified for U.S.A. and Canada

Certifié pour les états-Unis et le Canada BARCODE LABEL008Serial No.No de série:

PF-120LISTED PELLET FUEL CENTRAL OR SUPPLEMENTARY FURNACES FOR RESIDENTIAL USEAPPAREIL DE ChAUFFAgE CENTRAL OU SUPPLéMENTAIRE ENREgISTRé DE gRANULéS

COMbUSTIbLES POUR USAgE DANS LES RéSIDENCES

Tested January 2013 to UL 391-2010, ASTM E 1509-04, and CSA-B366.1-11Install and use only in accordance with the manufacturer’s installation/operting instructions. Refer to authorities having jurisdiction for proper installation. Contact local building or fire officials about restrictions and installation inspection in your area. If there are no applicable local codes, follow ANSI/NFPA 211 and CAN/CSA B365. Special precautions are required for passing the chimney through a combustible wall or ceiling.Inspect and clean exhaust venting system frequently in accordance with the manufacturer’s instructions. Use a 4” diameter type “PL” venting system.A Harman PF-120 may be connected to an existing furnace or heat pump duct system.Room Heater, Pellet Fuel-Burning Type, Also for Use in Mobile HomesFor use with Pelletized wood Fuel only.

Testé en January 2013 à UL 391-2010, ASTM E 1509-04, and CSA-B366.1-11Installez et utilisez en accord avec les instructions d’installation et d’opération du fabricant. Référez-vous à des professionnels avec autorité dans l’installation. Contactez le bureau de la construction.ou le bureau des incendies au sujet des restrictions et de l’inspection dans votre voisinage.S’il n’y a pas de codes locaux, suivez alors ANSI/NFPA211 et CAN/CSA B365. Prenez des précautions spéciales lorsque vous faites passer une cheminée à travers un mur ou un plafond combustibles. Inspectez et nettoyez le sustème de ventilation fréquemment en accord avec les instructions du fabricant. Utilisez un système de ventilation de 4” de diamètre de type “PL”.Une Harman PF-120 peut être connecté à une fournaise ou un système de pompe de chauffage déjà existants.Appareil de chauffage aux granules, type de chauffage à combustible, également destinés aux maisons mobilesFonCtionne eXClusiVeMent AVeC des GrAnules de Bois.

Combustibles to Filter Box on ApplianceCombustibles to Connector PipeCombustibles to ApplianceSupply Air Plenum to CeilingSupply Air Plenum to Combustible ChaseAppliance Body to CeilingCombustibles from Stove Front

Clearances to Combustibles/Espaces Libres aux Combustibles

1” (25 mm)*3” (76 mm)

12” (305 mm)1” (25 mm)1” (25 mm)

28” (711 mm)36” (914 mm)

Des combustibles à la boîte de filtration de l’appareilDes combustibles au tuyau connecteurDes combustibles à l’appareilProvision d’air plénum au plafondProvision d’air plénum au châssis du combustibleDe l’appareil au plafondDes Combustibles au devant du poêle

*At 16” of pipe length distance from the flue collar while maintaining listed clearances from appliance body.Un tuyau de grandeur de distance de 16” de l’ouverture du ventilateur doit être en accord avec l’espace libre mentionné de l’appareil même.

Thermostat / ThermostatDatacom Wire / Fil DatacomFan Control High Limit / Contrôle du ventilateur haute limiteFire Brick / Brique de feuHeat Exchanger Baffles / Déflecteurs d’échange de chaleur

Essential parts and subassemblies provided for field assembly are as follows /Pièces essentielles et sous-assemblée procurées pour l’assemblage sont les suivantes:

Burnpot Scraper / Grattoir de la chaudière de chauffage1638 CFM Blower / Ventilateur CFM 1638Return Air Filter Box / Boîte de filtration pour retour d’airAsh Pan / Bassin des cendres

date of Manufacture / date de fabrication2014 2015 2016 JAn FeB MAr APr MAy Jun Jul AuG seP oCt noV deC

Made in the U.S.A. / Fait aux états-UnisDo Not Remove or Cover This Label/Ne pas enlever ou recouvrir cet étiquette

Manufactured by/Fabriqué par: hearth & home Technologies, Inc.352 Mountain house Road - halifax, PA 17032

do not ConneCt this unit to A ChiMney Flue serVinG Another APPliAnCewArninG! DO NOT operate with fire chamber or ash removal doors

open. DO NOT store fuel or other combustible material within installation clearance area.

CAution! Hot while in operation.

DO NOT touch. Keep children, clothing, furniture and other combustible material out of the installation clearance area.

DO NOT connect this unit to a chimney flue that serves another appliance.

Flooring must be a non-combustible material covering the installation clearance area, and 18” in front of, and 8” to either side of the fuel loading doors.

In the event of loss of electrical power:Consult owner’s manual for restarting your furnace after power is restored.

U.S. ENVIRONMENTAL PROTECTION AGENCYThis model is exempt from EPA certification under 40 CFR 60.531

by definition [Wood Heater (A) “air-to-fuel ratio”].

ne PAs ConneCter Cet APPAreil à un tuyAu de CheMinée serVAnt un Autre APPAreilAttention! Ne pas opérer si la porte du combustible ou la porte de la cuvette

des cendres sont ouvertes. Ne pas placer le combustible et les matières combustibles à l’intérieur de l’espace désignée pour l’installation.

Attention! Chaud lors de l’opération.

NE PAS toucher. Gardez les enfants, les vêtements, les meubles et les matériaux combustibles loin de l’espace désignée pour l’installation.

NE PAS connecter cet apareil à un tuyau de checminée servant un autre appareil.

Le plancher de l’espace désigné pour l’installation doit ê fait de matière non-combustible, de 18” en avant, et de 8” de chaque côté des portes d’entrée du combustible.

Dans le cas d’un manque d’électricité:Consultez le manuel du propriétaire pour remettre la fournaise en marche lorsque l’electricité ést revenue.

Rev AP.n. 3-90-08121

Harman PF120 Pellet FurnaceLabel measures: 10" high X 6.5"wide

ModelModèle

FuelCombustible

Chimney Connector SizeGrandeur du Tuyau de Cheminée

BTUH/Kw Input PelletRendement des Granulés BTUH/Kw

Electrical RatingClassification électrique

Maximum Overcurrent ProtectionProtection Maximum du Courant

PF-120 PelletGranulés 4” 132,000 BTUH (39 Kw) 120V, 9.3A, 60 Hz 20 AMP

Door opening side of the furnace

18”

8”

8”

48”

52”

fLOO

R pR

OTec

TOR

Floo

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ion

18”

12”

18”

36”

1”

18”

36”

18”12”

1”

Listing Label Information/Location

A. CongratulationsCongratulations on selecting aHarman®PF-120PelletFurnace.TheHarman®PF-120Pellet Furnace youhaveselectedisdesignedtoprovidetheutmostinsafety,reliability,andefficiency.Astheownerofanewpelletfurnace,you’llwanttoreadandcarefullyfollowalloftheinstructionscontainedinthisowner’smanual.Payspecialattentiontoallcautionsandwarnings.

Thisowner’smanual shouldberetainedforfuturereference.We suggest that you keep it with your other importantdocumentsandproductmanuals.Your newHarman®PF-120Pellet Furnacewill give youyearsofdurableuseandtrouble-freeenjoyment.WelcometotheHarman®family!

Themodelinformationregardingyourspecificfurnacecanbefoundontheratingplateusuallylocatedintheareabelowthehopper.

Readthismanualbeforeoperatingthisappliance.PleaseretainthisOwner’sManualforfuturereference.

ReadtheInstallationManualbeforemakinganyinstallationorfinishingchanges.

1 Welcome

Brand: ________________________________________________ ModelName: ___________________________

SerialNumber: __________________________________________ DateInstalled: __________________________

Appliance Information:

Local Dealer InformationDEALER: Fill in your name, address, phone and email information here and appliance information below.

DealerName:________________________________________________________

Address:____________________________________________________________

____________________________________________________________

Phone:_____________________________________________________________

Email:_____________________________________________________________

SerialNumber

ModelName


Safety Alert Key:• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.

• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.

• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

• NOTICE: Used to address practices not related to personal injury.

Table of Contents

1 Welcome A. Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2B. LimitedLifetimeWarranty. . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Product Specific and Important Safety Information A. ApplianceCertification. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5B. GlassSpecifications(Ceramic) . . . . . . . . . . . . . . . . . . . . . 5C. ElectricalRating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5D. BTU&EfficiencySpecifications. . . . . . . . . . . . . . . . . . . . . 5

3 General Information A. ApplianceSafety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6B. ClearSpace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6C.ControlExplanation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7D. FuelSpecification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8E. GeneralOperatingInformation. . . . . . . . . . . . . . . . . . . . . . 9F. MainOperatingControl . . . . . . . . . . . . . . . . . . . . . . . . . . . 9G.BeforeYourFirstFire. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10H.WallControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10I. LowFuelSensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 Operating Instructions A. StartingYourFirstFire. . . . . . . . . . . . . . . . . . . . . . . . . . . 11B. FireCharacteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11C. FeedRateAdjustmentInstructions . . . . . . . . . . . . . . . . . 11D. IgnitionCycles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12E. AutomaticIgnition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13F. ManualIgnition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5 Maintenance and Service A. ProperShutdownProcedure. . . . . . . . . . . . . . . . . . . . . . 15B. QuickReferenceMaintenanceChart. . . . . . . . . . . . . . . . 15C.GeneralMaintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15D. AshRemoval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16E. BurnpotMaintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17F. AccordionHeatExchanger........................18G.CombustionBlowerChamber . . . . . . . . . . . . . . . . . . . . . 19H.DistributionBlower&AirFilter. . . . . . . . . . . . . . . . . . .19-20I. TubeHeatExchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

!

6 Troubleshooting and Frequently Asked Questions A. ErrorCodeDescription. . . . . . . . . . . . . . . . . . . . . . . . . . . 21B. FrequentlyAskedQuestions . . . . . . . . . . . . . . . . . . . . . . 22C. Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

7 Reference Materials A. SafetyReminders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24B. MotorandComponentLocation. . . . . . . . . . . . . . . . . . . . 25C. LossofPowerAddendum . . . . . . . . . . . . . . . . . . . . . .26-27D. ContactInformation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29E. QuickReference...................... BackPage(30)

= Contains updated information


B. Limited Lifetime Warranty

HARMAN® CENTRAL HEATING PRODUCTS LIMITED WARRANTY

Hearth&HomeTechnologiesInc.,onbehalfofitsHarman®brand(”HHT”),extendsthefollowingwarrantyforallHarman®furnaceandboilerproducts(“Products”)thatarepurchasedfromanHHTauthorizeddealer.

Warranty Coverage: Subjecttotheconditions,exclusionsandlimitationssetforthbelow,HHTwarrantstotheoriginalowneroftheProducts,andtoanytransfereetakingownershipoftheProductsatthesiteoforiginalinstallationwithintwoyearsfollowingthedateoforiginalpurchase,thattheProductswilloperatefreefromdefectsinmaterialandworkmanshipundernormalconditionsanduse,asdescribedintheoperatinginstructionsfurnishedwiththeProduct,duringthewarrantyperioddescribedbelow.HHTwill,atitsoption,repairorreplaceanyProductcoveredbythiswarrantythatisdeterminedtobedefectiveinmaterialorworkmanship.

Warranty Period: Thewarrantyperiodrunsforsixyears,except formechanicalandelectricalcomponents,whicharewarrantedforthreeyears.Thewarrantyperiodbeginsontheearlierof:(i)thedateofinvoicefortheProduct;(ii)inthecaseofnewhomeconstruction,thedateoffirstoccupancyoftheresidenceorsixmonthsafterthedateofsaleoftheProductbyanHHTauthorizeddealer,whicheveroccursfirst;or(iii)thedate24monthsfollowingthedateofProductshipmentfromHHT,regardlessoftheinvoiceoroccupancydate.

Warranty Conditions:ThiswarrantyappliesonlytoProducts:(i)installed,operated,andmaintainedasrecommendedintheProductuser’smanual;(ii)purchasedthroughanHHTauthorizeddealer;(iii)whileremainingatthesiteoforiginalinstallation;and(iv)thathavenotbeenalteredafterleavingthefactory.

How to File a Claim:ClaimsmustbemadewithinthewarrantyperiodtothedealerwhosoldtheProduct.Ifthatdealercannotprovidethewarrantyservice,contactthenearestHHTauthorizeddealer.AdditionalservicefeesmayapplyifyouareseekingwarrantyservicefromadealerotherthanthedealerfromwhomyouoriginallypurchasedtheProduct.Travelandshippingchargesforpartsarenotcoveredbythiswarranty.

Warranty Exclusions:Thiswarrantydoesnotcover the following: (1)consumableandnormalwear items, including,withoutlimitation,flameguides,grates,coalbars,afterburnerhoods,firebrick,gaskets,paint,glassdiscoloration,burnpothousingweldments, burnpot grateweldments (pellet or corn), burnpot front plates (pellet or corn), burnpot front platelocks,cornaugerextensions,ceramicinserts,andceramicinsertplates;(2)noisecausedbyminorexpansion,contractionormovementofparts; (3)damage resulting from: (i) failure to install,operateormaintain theProductaccording to theinstallationandoperatinginstructionsandlistingagentidentificationlabelfurnishedwiththeProduct;(ii)failuretoinstalltheProductaccordingtolocalbuildingcodes;(iii)shippingorimproperhandling;(iv)abuse,misuse,continuedoperationwithdamaged,corrodedor failedcomponents,accident,or incorrectlyperformed repairs; (v)environmental conditions,inadequateventilation,negativepressureordraftingcausedbytightlysealedconstruction,insufficientmake-upairsupply,orhandlingdevicessuchasexhaustfansorforcedairfurnacesorothersuchcauses;(vi)useoffuelsotherthanthosespecifiedintheoperatinginstructions;(vii)installationoruseofcomponentsoraccessoriesnotsuppliedwiththeProductorauthorizedandapproved inwritingbyHHT; (viii)modificationof theproductnotexpresslyauthorizedandapprovedbyHHTinwriting;or(ix)interruptionsorfluctuationsofelectricalpowersupplytotheProduct;(4)non-HHTcomponentsoraccessoriesused inconjunctionwith theProduct; (5) theProducts’capability toheatadesiredspace; information isprovidedtoassisttheconsumerandthedealerinselectingtheproperProductfortheapplication;considerationmustbegiventoProductlocationandconfiguration,environmentalconditions,insulationandairtightnessofthestructure;or(6)additionalorunusualutilitybillsincurredduetoanymalfunctionordefectinProducts.

Limitations of Liability: Repairor replacement inaccordancewith theprovisionsof thiswarrantywillbe theowner’sexclusiveremedyforandwillconstituteHHT’ssoleobligationunderthiswarranty,underanyotherwarranty(expressorimplied),orincontract,tortorotherwise.Noemployee,agent,dealer,orotherpersonisauthorizedtogiveanywarrantyonbehalfofHHT.TOTHEEXTENTALLOWEDBYLAW,HHTMAKESNOOTHERWARRANTY,EXPRESSORIMPLIED,INCLUDINGANYWARRANTYOFMERCHANTABILITYORFITNESSFORAPARTICULARPURPOSE.HHTWILLNOTBELIABLEFORANYCONSEQUENTIALORINCIDENTALDAMAGESARISINGOUTOFDEFECTSINORUSEOFTHEPRODUCTS.Somestatesdonotallowexclusionsorlimitationofincidentalorconsequentialdamages,sotheselimitationsmaynotapplytoyou.Thiswarrantygivesyouspecificrights;youalsomayhaveotherrights,whichvaryfromstatetostate.Thedurationofanyimpliedwarrantyislimitedtothedurationofthewarrantyperiodspecifiedherein.

L:\DOCS\JED\HHT\Warranties\HarmanCentralHeatingProductsWarranty6.16.09CLN


2 Product Specific and Important Safety Information

A. Appliance Certification D. BTU & Efficiency Specifications

NOTE: Thisinstallationmustconformwithlocalcodes.IntheabsenceoflocalcodesyoumustcomplywiththeUL391-2010,ASTME1509-04,andCSA-B366.1-11 & (UM) 84-HUD

MODEL: PelletFurnace-PF-120LABORATORY: OMNITestLaboratories,IncREPORT NO. 135-S-02b-2TYPE: PelletFueledCentral/SupplementarySTANDARD(s): UL391-2010,ASTME1509-04,and

CSA-B366.1-11

Particulate Emissions Rating: N/A

*BTU Output: 8,000-120,000/hrHeating Capacity: N/A

Hopper Capacity: 160lbsFuel: WoodPelletsShipping Weight: 580lbs

NOTE: Hearth&HomeTechnologies,manufacturer ofthisappliance,reservestherighttoalteritsproducts,theirspecificationsand/orpricewithoutnotice.

*BTUoutputwillvary,dependingonthebrandoffuelyouuseinyourappliance.Consultyourdealerforbestresults.WARNING! Risk of Fire! Hearth & Home Technologies disclaims any responsibility for, and the warranty and agency listing will be voided by the below actions.DO NOT:• Install or operate damaged appliance• Modify appliance• Install other than as instructed by Hearth & Home

Technologies• Operate the appliance without fully assembling all

components• Overfire• Install any component not approved by Hearth & Home

Technologies• Install parts or components not Listed or approved.• Disable safety switchesImproper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Forassistanceoradditionalinformation,consultaqualifiedinstaller, service agency or your dealer.

Harman® is a registered trademark of Hearth & HomeTechnologies.

The PF-120 Pellet Furnace by Harman® is exempt fromEnvironmental Protection Agency certification under 40CFR60.531ydefinition[WoodHeater(A)“AirtoFuelRatio].Note: This appliance is also approved for installation into a shop.

B. Glass SpecificationsThis appliance is equipped with 5mm ceramic glass.Replaceglassonlywith5mmceramicglass.Pleasecontactyourdealerforreplacementglass.

C. Electrical Rating120 VAC, 60Hz, Start 9.2MaxAmps, 7.5Amps normaloperation.NOTE: Some generator or battery back-up systems may not be compatible with the micro-processor electronics on this appliance. Please consult the power supply manufacturer for compatible systems.


If you expect that small children or vulnerable adultsmay come into contact with this appliance, the followingprecautionsarerecommended:• Installaphysicalbarriersuchas: - Adecorativefirescreen. - Adjustablesafetygate.• Install aswitch lockorawall/remotecontrolwithchild

protectionlockoutfeature.• Neverleavechildrenalonenearahotfurnace,whether

operatingorcoolingdown.• TeachchildrentoNEVERtouchthefurnace.• Consider not using the furnacewhen childrenwill be

present.Contact your dealer for more information, or visit: www.hpba.org/safety-information.To prevent unintended operation when not using yourfurnace for an extendedperiod of time (summermonths,vacations,trips,etc):• Unplugfurnacefromreceptacle.

A. Appliance SafetyWARNING! DO NOT operate furnace before reading and understanding operating instructions. Failure to operate furnace according to operating instructions could cause fire or injury.

3 General Information

B. Clear SpaceWARNING! RISK OF FIRE! Do NOT place combustible objects in front or to the sides of the appliance. High temperatures may ignite clothing, furniture or draperies.NOTICE: Clearances may only be reduced by means approved by the regulatory authority having jurisdiction.WARNING! RISK OF FIRE! Keep combustible materials, gasolineandother flammable vaporsand liquids clear ofappliance.• Do NOT store flammable materials in the appliance’s

vicinity.• Do NOT use gasoline, lantern fuel, kerosene, charcoal

lighterfluidorsimilarliquidstostartor“freshenup”afirein this heater.

Keep all such liquids well away from the heater while it is in use as combustible materials may ignite.

ContactyourdealerorHearth&HomeTechnologiesifthebarrierisnotpresentorhelpisneededtoproperlyinstallone.

HOT SURFACES!Glass and other surfaces are hotduringoperationANDcooldown.Hot glass will cause burns.• DO NOTtouchglassuntilitiscooled• NEVERallowchildrentotouchglass• Keepchildrenaway

WARNING!

• CAREFULLYSUPERVISEchildren insame roomasfurnace.

• Donottouchduringoperation.High temperatures may ignite clothing or other flammable materials.• Keepclothing,furniture,draperiesandotherflammablematerialsaway.


C. Control Explanation

Status LightWill be lit in either automatic or service mode when pointer is not within off position band except after normal shut down.

Combustion Blower LightI n d i c a t e s P o w e r t o combustion blower

Feed Motor Light Indicates Power to the feed motor.

Temp dialThe“TempDial”shouldbeinthe“NormalSetting”positionexceptwhenserviceworkisbeingdone.Italsoallowsyoutoadjustthefiretemperaturewhenthe“ModeSelector”isin“ServiceMode”usingthescalemarkedfrom1to7.Note: Due to variations in the electronics of the control board and wall control this is an approximate temperature and may vary +/- 2°

Feed adjusterSetsthemaximumfeedrate

TestRuns all motors at full speed for one minute to check operation. After one minute the combustion blower will go to it’s minimum speedand remain there. This is to allow for low draft voltage adjustment.

Low Fuel LightIndicates that fuel in the hopper is low and needs to be refilled. LowFuel LEDstays on for 15 secondsafter new fuel covers sensor.

Igniter LightIndicates power to the igniter

Lighting Mode SelectorSwitched betweenAuto andManual lighting

Mode SelectorSeeexplanationbelow.

Diagnostic Display PortRequires special DDM monitor supplied exclusively to service technicians.

Power LightIndicates power to the control, and is also used during “Test” to check theLowFuelSensoroperation.LEDwill blink to indicatebattery back-up shutdown if applicable.


NOTICEHearth & Home Technologies is not responsible forfurnaceperformanceorextramaintenancerequiredasaresultofusingfuelwithhigherashormineralcontent.

D. Fuel Specifications

Fuel and Fuel StoragePellet fuel quality can fluctuate from manufacturer tomanufacturer,andevenfrombagtobag.Hearth&HomeTechnologiesrecommendsusingonlyfuelthatiscertifiedbythePelletFuelsInstitute(PFI).FuelMaterial• Madefromsawdustand/orotherwoodby-products• SourcematerialtypicallydeterminesashcontentHigherAshContentMaterial• Hardwoodswithhighmineralcontent• Barkandleavesassourcematerial• “Standard”gradepelletsandotherbio-massLowerAshContentMaterial• Softwood;pine,fir,etc.• Materialswithlowermineralcontent• “Premium”gradepelletsClinkersMinerals and other non-combustiblematerials, like sand,willturnintoahardglass-likesubstancewhenheated.Treesfromdifferentareaswillvaryinmineralcontent.Forthis reason, some fuels will produce more clinkers thanothers.

MoistureAlways burn dry fuel. Burning fuel with high moisturecontenttakesenergytodryandtendstocooltheappliancethus,robbingheatfromyourhome.Damppelletfuelcouldturnbackintosawdustwhichdoesnotflowproperlythroughthefeedsystem.Size• Pellets are either 1/4 inch or 5/16 inch (6-8mm) in

diameter• Lengthshouldbenomorethan1-1/2inches(38mm)• Pellet length can vary from lot to lot from the same

manufacturerPerformance• Higherashcontentrequiresmorefrequentmaintenance.• “Premium” grade pelletswill produce the highest heat

output.• Burning pellets longer than 1-1/2 inches (38mm) can

causeinconsistentfeedingand/orignition.Werecommendthatyoubuyfuelinmulti-tonlotswheneverpossible. However, we do recommend trying differentbrands prior to purchasing multi-ton lots, to ensure yoursatisfaction.CAUTION! Tested and approved for use with wood pellets ONLY. Burning of any other fuel will void your warranty.When changing from “Premium” grade pellets to a“Standard”or“Economy”gradefuel,theFEEDADJUSTERwill likely need adjusted to a lower setting. When undermaximumdemand,ensurethereisnounburnedfuelbeingpushedintotheashpan.Storage• Woodpelletsshouldbeleft intheiroriginalsealedbag

untilreadytouse,topreventmoisture.• Donotstorefuelwithinthespecifiedclearanceareas,or

inalocationthatwillinterferewithroutinecleaningandmaintenanceprocedures.

CAUTION!Tested and approved for usewithwood pelletsONLY.Burningofanyotherfuelwillvoidyourwarranty.

DO NOT BURN GARBAGE, GASOLINE, NAPTHA, ENGINE OIL OR OTHER INAPPROPRIATE MATERIALS

CAUTION!


E. General Operating Information1. Control Calls For HeatTheapplianceislikemostmodernfurnaces;whenthecontrol calls for heat, your appliancewill automatically light anddeliverheat. When the room is up to temperature and the control is satisfied,theappliancewillshutdown.2. Fan Limit ControlThisapplianceisequippedwithaFanLimitControlswitchthat operatesthefanastheplenumtemperaturerisesandfalls.Thecontrolworksindependentfromthecontrolboard.

Figure 3.1

FireHazard.Keepcombustiblematerials,gasolineandotherflammablevaporsandliquidsclearofappliance.

• DO NOT store flammable materials in the appliance’s vicinity.

• NEVER USE GASOLINE, GASOLINE-TYPE LANTERN FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR SIMILAR LIQUIDS TO START OR “FRESHEN UP” A FIRE IN THIS HEATER. KEEP ALL SUCH LIQUIDS WELL AWAY FROM THE HEATER WHILE IT IS IN USE.

• DO NOT BURN GARBAGE, GASOLINE, DRAIN OIL OR OTHER FLAMMABLE MATERIALS.

• DO NOT USE CHEMICALS OR FLUIDS TO START THE FIRE.

• Combustiblematerialsmayignite.

• Inspectandcleanfluesandchimneyregularly

WARNING!

F. Main Operating ControlThecontrolcanbecovered,oruncoveredasshowninFigure3.1.Therearetabsprovidedonthecoverforeachposition.Simplymovethecovertothedesiredpositionbyplacingthetabsofthecoverintheproperslots.

HOT WHILE IN OPERATION. DO NOT TOUCH DURING OPERATION. KEEP CHILDREN, CLOTHING, FURNITURE, AND OTHER COMBUSTIBLE MATERIAL OUT OF THE INSTALLATION CLEARANCE AREA.

CAUTION!

DO NOT STORE FUEL OR OTHER COMBUSTIBLE MATERIAL WITHIN THE MARKED INSTALLATION CLEARANCES.

WARNING!

DO NOT OPERATE WITH FUEL-LOADING OR ASH-REMOVAL DOORS OPEN.


I. Low Fuel SensorThereisalowfuelsensorinthehopperthattellsthecontrolthat the fuel level in the hopper has dropped below thesensor.Whenthishappens,theLowFuellightontheWallControlwillstarttoblink.Youthenknowthatitistimetofillthehopperwithpellets.Note:Testing the lowfuelsensorcanbedoneby turningtheFEEDADJUSTERknobto“Test”.ThePOWERlightwillgooffwhenthesensorisuncoveredandwilllightwhenthesensoriscoveredagain.Note: TheLOWFUELlightontheFurnaceControlwilllightatthesametime.OnlytheLOWFUELlightontheFurnaceControlwillremainlit forthreeminutesafterthesensor iscoveredwithpellets.SeeNotebelow.Note: TheLowFuellightindicatesthatthereispowergoingtotheauxiliaryleadsinthecircuitbreakerjunctionbox.(120VAC60HzMax.1Amp.)Theauxiliarypowerleadscouldbeusedifabulkhopperandaugersystemwereinstalled.(seewiringdiagramonpage36)Type of Fuel Pelletizedwoodonly.Note:Thelowertheashcontentofthepelletsmeanslessheatexchangersurfacecleaningthatwillbeneeded.Thecleaner these surfaces are kept, themore efficient thefurnacewillbe.

DO NOT BURN GARBAGE, GASOLINE, NAPTHA, ENGINE OIL OR OTHER INAPPROPRIATE MATERIALS

CAUTION!G. Before Your First Fire1. Makesureyourappliancehasbeenproperlyinstalledand

thatallsafetyrequirementshavebeenmet.Payparticularattentiontothefireprotectionandventinginstructions.

2. Doublecheckthattheashpanandfireboxareempty!3. Closethefrontdoor.

H. Wall ControlThewallcontrolactslikeathermostat,athermisterinthewallcontrolissendingtemperatureinformationbacktothemicroprocessoronthefurnace.Thisinformationisusedtodeterminetheneedtoincreaseordecreasethesizeofthefireaccordingtothetemperaturedemand.Setting The Room TemperatureToset theroomtemperature,simply turn the temperaturedialtothedesiredsetting.Thecontrolandthefurnacewillthenperformtoachievethesettemperature.Note:Theminimum temperature you can setwith a fullcounter-clockwiseknobpositionis58degrees.Themaximumtemperatureyoucansetwithafullclockwiseknobpositionis90degrees.WallControlcalibration:The“NormalSetting”ontheTempDialoftheFurnaceControl(SeeFig.44)calibratestheWallControltemperaturespan.IftheTempDialisnotpointingtothe“NormalSetting”,thetemperaturespancouldvaryby3degreesupordowndependingontheTempDialknobsetting.


4 Operating Instructions

B. Fire CharacteristicsAproperlyadjustedfirehasamediumactiveflamepatternthat extends out of the burn pot approximately 6 inches(152mm).

C. Feed Rate Adjustment InstructionsThe feed adjustmentcontrolisfactoryset at #4,andshouldbeadequateformostfuels. However,iftheflameheightistoohighortoolow,youwillneedtoadjustthefeedrate. Wait until theappliancehasbeenburningfor15minutesbeforemakingyouradjustmentsandallow15minutesforfeedadjustmenttotakeeffect.

A. Starting Your First Fire1. Thewallcontrol isrequiredforproperoperationofthis

appliancein“Automatic”mode.Atthistime,fillthehopperwithpellets,insurethecontrolissetto“OFF”.Figure4.1.Plug thepower cord into a properly grounded, nearbyoutlet.

2. Oncepowerispresent,theunititwillrunthroughaquickdiagnosticstesttoinsurethecontrolisoperatingproperly.Thisisnormal.

3. Foryourfirstfireitmaybenecessarytopurgetheaugersystembyputtingthefeedadjusterknobto“Test”priortostartingtheunit.Figure4.2.Thisinsuresthatplentyoffuelenterstheburnpotforproperignition.

Figure 4.4

Figure 4.1 Figure 4.2

Figure 4.3

Odorsandvaporsreleasedduringinitialoperation.• Curingofhightemperaturepaint.• Openwindowsforaircirculation.

Odorsmaybeirritatingtosensitiveindividuals.

CAUTION!

CAUTION!DO NOT BURN GARBAGE, GASOLINE, DRAIN OIL, OR OTHER FLAMMABLE LIQUIDS.

CAUTION!HOT WHILE IN OPERATION. DO NOT TOUCH. KEEP CHILDREN, CLOTHING, FURNITURE, AND OTHER COMBUSTIBLE MATERIAL OUT OF THE INSTALLATION CLEARANCE AREA.

WARNING!DO NOT OPERATE WITH HOPPER OR ASH REMOVAL DOORS OPEN.

WARNING!DO NOT STORE FUEL OR OTHER COMBUSTIBLE MATERIAL WITHIN INSTALLATION CLEARANCE AREA.

FOR SAFETY KEEP FIRING AND ASH PIT DOORS TIGHTLY CLOSED.OPERATE THE ELECTRIC FURNACE PERIODICALLY TO ENSURE THAT IT WILL OPERATE SATISFACTORILY WHEN NEEDED.

4. Fliptoggleswitchtodesiredmode“autoormanual”.Figure4.3.Set feedadjusterknob todesiredsettingand turnmodedial to “Automatic”or “Service”Figure4.4.Feedrateof#4isagoodstartingpoint.Adjustmentsmayneedtobemadedependingonfuelqualityand/orheatoutputdesired.Note: Theigniterwillnotcomeonuntiltheinitialfeedchargeiscomplete.

5. Thefuelfeedsystemandtheignitershouldnowbeon(Ifunitissettoautomode).

6. Oncetheappliancehasignited,letitburnforapproximately7-10minutes.Afterthistime,theigniterlightshouldturnoffandtheunitshouldbegintooperateperthesettingsatthecontrol.

CAUTION!DO NOT USE CHEMICALS OR FLUIDS TO START FIRE


D. Ignition Cycles1. Atthebeginningofeachignitioncycle,itisnormaltosee

somesmokeinthefirebox.Thesmokewillstoponcethefirestarts.

2. Thedistributionblowerwillautomaticallyturnonafteryourfanlimitcontrolhasreachedthesettemperature.Thisblowertransfersheatfromyourappliancethroughyourduct.In“Automatic”modehowever,theblowerwillturnonandoff inaccordance towhat temperature thefanlimitcontrolisreadingintheplenum.Whenthewallcontrolissatisfiedtheblowerwillshutdownuntilthewallcontrolseesademandforheat.

3. Occasionallytheappliancemayrunoutoffuelandshutitselfdown.Whenthishappens,theunitwillneedtobeturnedtotheoffpositionandrestarted. Ifneeded,followtheinstructionsinSectionA, “StartingYourFirstFire”.

WARNING!Fire RiskDoNOToperateappliance:• With fuel-loading or ash-removal doorsopen.

• Burnpotflooropen.• Cleaningslideplatesopen.DoNOTstorefuel:• Closer than required clearances tocombustiblestoappliance

• Within space required for loadingor ashremoval.


1. If starting after an empty hopper, turn Feed Adjuster to “TEST” (forone60secondcycle).Thiswillchargepelletsintotheaugertubeandalsoallowyoutocheckthemotorsforoperation.Figure4.5.NOTE: The auger motor will not operate with the furnace door open.2.Turn Feed Adjuster to #4.Ifthisisyourfirstfire,oryouaretryingdifferentpellets,setthefeedadjuster to#4,Figure4.6.This isaconservativenumberandwillprobablyneedtobeincreasedifmaximumBTUoutputisdesired.Afteryouknowafeedratesettingthatworkswellforyourapplication,usethatsetting.3.Flip the Igniter Switch up into the “AUTO-LIGHT”position,Figure4.7.

Figure 4.5

Figure 4.6

Figure 4.7

E. Automatic Ignition

FireRiskDoNOToperateappliance:• With fuel-loading or ash-removal doorsopen.

• Burnpotflooropen.• Cleaningslideplatesopen.DoNOTstorefuel:• Closer than required clearances tocombustiblestoappliance

• Within space required for loadingor ashremoval.

WARNING!

WARNING!HOT WHILE IN OPERATION. KEEP CHILDREN, CLOTHING, AND FURNITURE AWAY. CONTACT MAY CAUSE SKIN BURNS.


F. Manual IgnitionLightingthefiremanuallywillnotbenecessaryunlesstheignitersystemfails.1. Flip the Igniter Switch Down intothe“MANUAL-LIGHT”

position.SeeFigure4.8.2. Open inner and outer ash doors as shown in Figures

5.1 thru 5.3. Located in the maintenance and service sections of this manual.

3. Fill burnpot with pellets as shown in Figure 4.9. Only fill level with the front edge. ( DO NOT OVERFILL )

4. Have matches or other ignition source ready.5. Turn Mode Selectorto“SERVICE”Figure4.10.

Figure 4.8

Figure 4.9

Figure 4.10

ThiswillstartthecombustionblowerandallowtheESPtocontrolthefireinrelationtotheTempDialsetting1through7.OncethefireiswellestablishedtheTempDialcanremainonanynumbersettingdesired,orchangedtothe“AUTOMATIC”setting.Ifyouchangeto“AUTOMATIC”remembertosettheTempDialtodesiredtemperature.NOTE: When the Switch is set toManual-Light in the“AUTOMATIC”mode, thewall controlwill function as inAuto-Lightexceptthefirewillnotbeallowedtogoout.Itwillonlybeallowedtogotoaminimumburnratebetweenthetimesthewallcontroliscallingforheat.Thisrateisabout1poundoffuelperhour.

7. Light the starting gel with a match.8. Close the doorsThefirewill lightand thecontrolwilladjust thefire to theproper level according to the temperature readingat thewallcontrol.

CAUTION!• Avaporflashcouldoccuriftoomuchtimeisallowed

topassbeforelightingthestartinggel.• Caremust be takennot to get starting gel on your

handsorclothing.Seriousburnscouldoccurduringthelightingprocess.

• Never try to applymore starting gel to an alreadyburningfire,orafirewithsmolderingpellets.

6. Apply starting gel as shown in Figure 4.11.NOTE: Stirring the starting gel into the pellets usually allows the fire to become established quicker.

NEVER USE GASOLINE, GASOLINE-TYPE LANTERN FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR SIMILAR LIQUIDS TO START OR “FRESHEN UP” A FIRE IN THIS FURNACE. KEEP ALL SUCH LIQUIDS WELL AWAY FROM THE FURNACE WHILE IN USE

WARNING!STARTER GEL

Figure 4.11


5 Maintenance & Service

C. Quick Reference Maintenance Chart

Follow the detailed instructions found in this section for each step listed in the chart below.

Cleaning or Inspection Frequency Daily Weekly Monthly YearlyAshPan/AshRemovalfromFirebox 100-120hours OR XHeatExchanger 100-120hours OR XBlower,Combustion(Exhaust) Morefrequentlydependingon

thefueltypeOR X

Blower,Distribution OR XDoorGasketInspection Priortoheatingseason OR XExhaustPath Morefrequentlydependingon

ashbuild-upOR X

Firebox-PrepareforNon-BurnSeason Atendofheatingseason OR XBurnpot-Burningpellets-hardwood 50Hours OR XBurnpot-Burningpellets-softwood 60Hours OR XGlass Whenclearviewofburnpot

becomesobscureOR X

Hopper/HopperLidGasket OR XVentingSystem Morefrequentlydependingon

thefueltypeOR X

NOTICE: These are recommendations. Clean more frequently if you encounter heavy build-up of ash at the recommended interval or you see soot coming from the vent. Not properly cleaning your appliance on a regular basis will void your warranty.

Shock and Smoke Hazard• Turn unit to the off position, let appliancecompletely cool and combustion blowermustbe off. Now you can unplug appliance beforeservicing.

• Smokespillageintoroomcanoccurifapplianceisnotcoolbeforeunplugging.

• Riskofshockifappliancenotunpluggedbeforeservicingappliance.

A. Proper Shutdown Procedure

CAUTION!

B. General MaintenanceTypes of FuelThetypeoffuelyouareburningwilldictatehowoftenyouhavetocleanyourburnpot.Ifthefuelyouareburninghasahighdirtorashcontent,itmaybenecessarytocleantheburnpotmorethanonceaday.

Dirtyfuelwillcauseclinkerstoformintheburnpot.Aclinkerisformedwhendirt,ashoranon-burnablesubstanceisheatedto2000°F(1093°C)andbecomesglass-like.

Cleaning Cycle MeterAcleaningcyclehourmeter (picturedbelow)keeps trackof the totalaccumulatedhours the feedermotor runs,notthe number of hours the unit is in operation.By knowingthisyoucankeeptrackofhowoftenyouneedtocleantheburnpotandheatexchangerwithyourbrandofpellets.Some recommended hourly intervals are:50hoursfortheburnpot.100hoursforacompletecleaning.Aftercleaningiscompleted,resetthehourmeterbypushingtheresetswitchlocatedintheupperlefthandcornerofthecontrol.

Whenproperlymaintained,yourfurnacewillgiveyoumanyyearsoftrouble-freeservice.Contact your dealertoanswerquestionsregardingproperoperation,trouble-shootingandserviceforyourappliance.Visitwww.harmanstoves.comtofindadealer.Werecommendannualservicebyaqualifiedservicetechnician.


D. Ash RemovalItisrecommendedtoremovetheasheswhenthefurnaceisnotinoperation.Thislessensthechancesofcomingincontactwithhotsurfaces.Ashescanberemovedwhileinoperationbut,extracaremustbetaken.Open Outer Ash DoorLiftthetwolatchesshowninFigure5.1andopentheouterdoor as shown inFigure5.2. If theDistributionBlower isrunningwhentheouterdoorisopen,someairwillescapearoundthedooropening.Thisisnotaproblem,howeveranydustthatiscausedintheashremovalprocesscanpotentiallybeblownaround.Open Inner Ash DoorLiftlatchesshowninFigure5.2andopentheinnerdoorasshowninFigure5.3.NOTE: Keep hopper lid and inner door closed during operation and maintain all seals in good condition.Remove Ash PanAlwayswearglovestoremoveashpan.Grabtheashpanbythehandleandpullitoutofthefurnace.Liftthehandleanduseitforcarryingtheashpan. Close the inner door before disposing of the ashes. Disposal of AshesAshes shouldbeplaced in ametal containerwith a tightfittinglid.Theclosedcontainerofashesshouldbeplacedonanon-combustiblefloororontheground,wellawayfromallcombustiblematerials,pendingfinaldisposal.Ifashesaredisposedofbyburialinsoilorotherwiselocallydispersed,theyshouldberetainedintheclosedcontaineruntilallcindershavethoroughlycooled.Soot and Fly-ash: Formation and Need for RemovalTheproductsofcombustionwillcontainsmallparticlesoffly-ash.Thefly-ashwillcollectintheexhaustventingsystemandrestricttheflowofthefluegases.Incompletecombustion,suchas,duringstartup,shutdown,orincorrectoperationofthefurnacewillleadtosomesootformationwhichwillcollectintheexhaustventingsystem.Theexhaustventingsystemshouldbeinspectedat leasttwicemonthlytodetermineifcleaningisnecessary.

Inner Door Latches

Outer Door Latches

Figure 5.1

Figure 5.2

Figure 5.3


E. Burnpot MaintenanceWhencleaningtheburnpotusethesuppliedallenwrenchtoremoveanybuild-upthatmayhaveaccumulatedintheholesoftheburnpotgrate.Makesurealltheholesareopenandfreefromencrustedcarbonaroundtheedges.Aspecialeffortshouldbemadetocleanthebottominsidecorners of the burnpotwhere the auger tube enters theburnpot.Carbondepositscanbuildupovertimeinthisareathatcouldcausea restriction to theflowofpelletsand/orcausethepelletstopushontotheburngrateareaunevenly.Thethreeverticalcuts in theburnpotsurface(Figure5.4)aretheretorelieveexpansionstressdotothehighheatthematerialsees.Someunevennessmayoccurinthisarea.Aslongastheholesarekeptcleanandclearofanyblockagethiswillnoteffecttheoperationoftheunit.Removing the swing out burnpot:• Makesuretheunitiscooleddownorcold.• Removeashpan.• Swingthelatchhandleupuntilyoufeelitcontactthetop

oftheswingplate.Thenpushupwarduntilyouseetheburnpotswingout.Figure5.5.

• Lifttheburnpotupoffoftheswingplateintheunit.• Removetheflameguide.• Emptyanyfinesthatmayhavebuiltupundertheburn

potgrate.Todothisloosenthe2thumbscrewslocatedon the frontof theburnpotandremove thecover.Theairchambercanbecleanedofanyashthathas fallenthroughtheholesduringoperationandcleaning.Figure5.6

Before replacing the swing out burnpot:1. Inspecttheredsiliconegasketonthebackoftheburnpot

tomakesurethereisnodamageorcarbonaroundtheedgesthatmaycauseapoorseal.Figure5.7.

2. Inspectthesealingsurfaceontheswingplateinsidetheunit.Thesurfaceneedstobecleanandsmooth.

3. Do not forget to reinstall the flame guide or the cleanout cover.

4. Make sure the burnpot is fully seated with the latchhandledownasfarasitcango.

Figure 5.4

Vertical cuts

Pulluponhandle

Figure 5.5Burn pot hinge/Swing plate

Figure 5.7Red silicone gasket

Thumb screwsFigure 5.6


F. Accordion Heat ExchangerThiscleaningshouldbedonemonthly,oraftereachtonofpelletsused.Thefrequencyofthiscleaningwillbedirectlyrelated to thequalityand thequantityof thepelletsbeingused.Keep inmind that the cleaner the heat exchangersurfaceiskept,thehighertheheattransferefficiencywillbe.Due to its ease of restarting it is recommended that thefurnacebeOFF and COOLbeforecleaning.Beforestarting toclean the insideof thefireboxarea it isrecommendedthatallofthebafflingberemoved.Startwiththeupperheatexchangerbaffle.Figure5.8.Remove thefirebrickthenpushstraightupwardonthe lowerashslideangleapproximately1/2”.Thiswill release thebaffle fromthepositioningbracketsandallowittobetiltedtowardtheburnpotandremovedfromthefurnace.Note: Observethepositioningtabsandbracketsystemontherearoftheupperbaffleasitisbeingremovedforeasierreplacementlater.Removethelowerbaffleplate.Thisbaffleisaflatplatethatsitsonthefireboxfloor.Tipthetopedgetowardtheburnpotandliftupandoutofthefurnace.Notehowthebafflebottomedgesitsbehind theashpanguideandagainst theheatexchanger.Figure5.9.Withallofthebafflingremoved,theentirefireboxareaandthe accordion heat exchanger can be cleaned.Use thepointedendofthescrapersuppliedtocleantheaccordionheatexchanger.Asmallwispbrush,wirebrush,oranoldstiffbristledpaintbrushworksbestforcleaningthefireboxwalls andbaffleplates.All of the fly ash removedduringcleaningwillfalltothebottomofthefurnacewherethereisanunobstructedaccessforcleaning.Eventhebottomendsofthechainscanbeseenandaccessedeasilyfromthedooropening.Figure5.10.

Ash slide angle

Upper Baffle

Figure 5.8

Ash Pan Guide

Lower Baffle Plate

Figure 5.9

Shaker Chain Ends Figure 5.10

CAUTION!Cleanout of the heat exchanger, flue pipe, chimney, and combustion blower fan housing is especially important at the end of the heating season to minimize corrosion during the summer months caused by accumulated ash.


G. Combustion Blower ChamberRemovethecombustionblowerheatshield.Therearetwolatches thathold theshield inplace.Figure5.11.Flip thelatchesupandpulltheshieldawayfromthefurnace.Itcannotbefullyremoved,itcanonlybemoveddownoverthewireuntilithangsonthejunctionbox.ThefurnaceMUST be OFF and COOLbeforeyoushouldattempttocleanthecombustionblower.Thewire to the combustion blower doesn’t need to bedisconnectedduringthecleaningprocess.Loosenthethree(3)thumbscrewsabout4turnseach.Figure5.12.Hold themotorheadwithonehandand theblowerplatehandlewiththeotherhand.Pulloutwardontheplatehandleuntilthecompleteunitcomesloose.Nowrotatetheplatecounter-clockwiseabout1/8 turn.Thiswillallow thecompleteassemblytoberemovedfromtheblowerchamber.Cleantheblowerfanbladesandtheblowerplatesealingoverlap.Figure5.13.Note:Becarefulnottobendthefanblades,thiswillthrowthefanbladeoutofbalanceoritmayrubtheinnerchamber,whichmay affect the performance of the furnace.Anyhorizontalandverticalfluepipedirectlyabovetheunitshouldbecleanedatthistime.Note: Thehorizontalfluepipedirectlyabovethefurnaceisthefirstplaceflyashwillsettle,duetotheslowingoffluegasvelocitythroughhorizontalpipe.Cleaningofhorizontalventingpipesisveryimportanttotheefficiencyofthisfurnace.Note: Inspection, maintenance and cleaning of theconvection/distributionairfiltershouldbedoneregularly.

H. Distribution Blower and Air FilterInspect and clean (if needed) the furnace cold air returndistribution blower and air filter located just below thecombustionblowerchamber.Thisareashouldbeinspectedmonthly ormore frequently depending on its installationlocation.IftheAirFilterisneedingreplacedusea20”x20”x1”AirFilter,Harman®part#3-40-20201-12.

Latch Figure 5.11

Thumb Screws Figure 5.12

Sealing OverlapFigure 5.13


Cleantheflueoutletthroat(thisistheholethatgoesupintothefluepipe).Figure5.14.Note:TheESPextendsintothissamearea.CARE MUST BE TAKEN NOT TO DAMAGE THE ESP DURING CLEANING.Cleantheinnerchamberoftheblowerhousing,thefurnaceblowerplateandsealingoverlap.Figure5.14.Inspectthetopsof theheatexchanger tubeswhere thechainshakermechanism is located.Make sure there are no fly ashbuildupsthatmayblocktheeasyflowoffluegasesintothecombustionblowerinlethole.(Aflashlightmaybenecessary.)Inspectthechainshakermechanismforproperoperation. Note: Fly ash canbuild up to the top edgesof the heatexchanger tubeswithout affecting operation.The chainshakerwillcauseanyexcesstofalldownintothechamberunderthetubeswhereitcanbecleanedoutthroughthefirebox.Figure5.14.

CLEANOUT OF THE HEAT EXCHANGER, FLUE PIPE, CHIMNEY, AND DRAFT INDUCER, IF USED, IS ESPECIALLY IMPORTANT AT THE END OF THE HEATING SEASON TO MINIMIZE CORROSION DURING THE SUMMER MONTHS, CAUSED BY ACCUMULATED ASH.

CAUTION!

I. Tube Heat Exchangers: The heat exchanger tubes have an external handle thatoperatesthecleaningmechanism.Figure5.15.This cleaning should be done at least once a week,although itcanbedonemore frequently.Thecleaner theheatexchangersare,themoreefficientthefurnacewillbe.Thiscleaningcanbedoneatanytimeandinanymodeofoperation.Thehandlehastwodirectionsofmovement,RighttoLeftandInandOut.Allinsidesurfacesoftheserectangulartubescanbecleanedwiththisrangeofmotion.First,withthehandlepushedin,turnthehandlerighttoleft,thefullsweep,severalstrokes.Second,withthehandlepointingstraightdown,pulloutandpushinwardseveralstrokes.Third,withthehandleallthewayout,turnthehandlerighttoleft,thefullsweep,severaltimes.Endwiththehandlepushedinwardandpointingdown.Theshakerhandleshouldbepushed inwardandstraightdownduringnormaloperation.Figure5.15.Note: Fly ash canbuild up to the top edgesof the heatexchanger tubeswithout affecting operation.The chainshakerwillcauseanyexcesstofalldownintothechamberunderthetubeswhereitcanbecleanedoutthroughthefirebox.Figure5.16.

ESP

Sealing overlap

Figure 5.14

Lower cleanout chamberFigure 5.16

ChainShaker Handle

Figure 5.15

Inspect flue pipes, flue pipe joints and flue pipe seals regularly to ensure that smoke and flue gases are not drawn into, and circulated by, the air-circulation system.

CAUTION!Access to flue outlet throat


6 Troubleshooting and Frequently Asked Questions

Mode Selector Allows you to choose betweenAutomaticMode,ServiceModeorOFF.Automatic ModeAutomaticmodeswitchesoperationalcontrolofthefurnacetothewallmountedcontrol.Thisisthemodetousewheneverthefurnaceisburninginanormalheatingapplication.Service ModeServicemodeswitchescontrolof the furnaceto the tempdial.Thetempdialcanbesetfrom1to7toallowasteadyfurnacetemperatureatthedesiredlevel.Themainpurposeofthismodeistooperatethefurnacewithouthavingtogobacktothewallmountedcontrol.OFF ModeTurningthemodeselectortoOFFwillshutdownthefurnace.

A. Error Code DescriptionStatus light error messages:2 Blinks: Indicateslackofdraft,door/lidisopen,pressureswitchisopen,flueblockage.3 Blinks:IndicatesthattheESP(ExhaustSensingProbe)hasgoneoutofrangetoomanytimes.Iftheunitseemstobeoperatingnormally,Performamanualreset*.Ifthecodepersists,you’llneedtocallaservicetechnician.4 Blinks:CanoccuronlyintheAutomaticModeandindicatestheWallControlhasfailedorisnotinstalled.IfaWallcontrolistheninstalledthestatuslightwillautomaticallyreset.5 Blinks:(InAutoLightModeOnly)Indicates that the igniterhas failed to light thefireafter4consecutive8minuteattempts.To reset -Turn theModeSelectortoOFFandthenbacktoAutomatic.6 Blinks :Indicatesthatthecontrolhascalculatedpoororincompletecombustionoccurringformorethan25minutes.Asixblinkstatusmaybesetifthefurnaceisallowedtorunoutofpellets.Toreset,turnmodeselectorto“OFF”thenbackontothedesiredmode.Iftheunitwasnotoutofpellets,seeTroubleshootingsectionformoredetails.* Manual reset,disconnectpoweratthecircuitbreakerforafewsecondsandreconnect.IferrorstilloccurscallyourDealer.


B. Frequently Asked Questions

ISSUES SOLUTIONS1. Metallicnoise. 1. Noiseiscausedbymetalexpandingandcontractingasit

heatsupandcoolsdown,similartothesoundproducedbyafurnaceorheatingduct.Thisnoisedoesnotaffecttheoperationorlongevityofyourappliance.

2. Whiteashbuilduponglass. 2. Thisisnormal.Cleantheglassusinganynon-abrasiveglasscleaner.

3. Glasshasbuildupofblacksoot 3. Excessive build-up of ash.See solution #4.The lowerburn settings will produce more ash, the higher burnsettingsproduceless.Themoreitburnsonlowthemorefrequentcleaningoftheglassisrequired.

4. Glasshasturneddirty. 4. Excessivebuildupofash.The lowerburnsettingswillproducemoreash,thehigherburnsettingsproduceless.Themoreitburnsonlowthemorefrequentcleaningoftheglassisrequired.

5. Firehastallflameswithblacktailsandislazy. 5. Thefeedrateneedstobereducedortheburnpotneedscleaning. Heat exchanger or exhaust blower needscleaning.

6. Smokeystart-uporpuffsofsmokefromtheairwash. 6. Either the burnpot is dirty or there is toomuch fuel atstart-upandnotenoughair.

7. Largeflameatstart-up. 7. This is normal. Flamewill settle down once the fire isestablished.


Withproper installation,operation,andmaintenanceyourappliancewillprovideyearsof trouble-freeservice. Ifyoudoexperienceaproblem,thistroubleshootingguidewillassistaqualifiedservicepersoninthediagnosisofaproblemandthecorrectiveactiontobetaken.Thistroubleshootingguidecanonlybeusedbyaqualifiedservicetechnician.

HELPFUL HINTS1. Cleaning Burn PotWheneveryourfurnaceisnotburning,taketheopportunitytoscrapetheburnpottoremovecarbonbuildup.Avacuumcleanerishandytoremovetheresidue.Besurethefurnaceiscoldifyouuseavacuum.Carbonbuildupcanbescrapedloosewiththefireburningusingthespecialtoolprovidedwithyourfurnace.Scrapethefloorandsidesoftheburnpot.Thecarbonwillbepushedoutbytheincomingfuel.Alwayswearglovestodothis.2. Removing AshesTurntheTempDialtonumber1approximately30minutesbeforeremovingashes.Thiswillresultinacoolerfurnaceandashpan.MaximumFeedAdjuster settingsarenot needed inmostcases.Operatinginthenormalrange(#4)isrecommendedwhenmaximumheatoutputisnotrequired.TheESPprobepreventsthefurnacefrombeingover-fired.Keepthefurnacefreeofdustanddirt.

FURNACE DOES NOT FEED1. Nofuelinhopper.2. Fireboxdraftmaybetoolowforsensingswitchinfeeder

circuit to operate.Check for closed doors, looseormissinggasketondoorsorhopperlid.

3. FeedmotorwillnotrununtiltheESPcontrolsensesacertaintemperature.Maybeyoudidnotputenoughfuelorstartinggelintheburnpotbeforemanuallylightingthefire.

4. Restrictioninthehopperorfeeder.Removeallfuelandexamine.Cleartheobstruction.

5. Feedmotorhasfailed.PARTIALLY BURNED PELLETS1. Feedratetoohigh.2. Poorairtofuelmixture.(Checkburnpotclean-outcover

andairintake).3. Burn pot or heat exchanger tubesmay need to be

cleaned.4. Combinationofalltheabove.5. #6statusblink:A6blinkcontrolboardstatusindication

iscausedbypoororincompletecombustion.ThecircuitboardhastheabilitytotrackthecombustionthroughfeedsettingsandESPtemperatures.Whenthecontrolboardhascalculatedpoororincompletecombustion,itwillshutdowntheunitasasafetyfeature.(Poororincompletecombustionisacontributorofcreosotewhichmaycauseachimneyfire)

A 2 blink status may be caused by several things:1. Blockedorpartiallyblockedflue.2. Blockedorpartiallyblockedinletair.

a. Backdraft damper on the inlet pipemay be stuckclosed.

b. If outside air is installed, the inlet covermay beblocked.

3. Theairchamberunder theburnpotmaybefilledwithfinesandsmallbitsofash.

4. Theholesintheburnpotmaybegettingfilledwithashorcarbonbuildup.

5. Combustionblowerfanbladesmayneedcleaned.6. Fuelrestrictionsasnotedabove.

SMOKE SMELLSeal the vent pipe joints and connection to furnacewithsilicone.Theexhaustventistheonlypartofthesystemthatisunderpositivepressure.FIRE HAS GONE OUT- Check for status light.1. Nofuelinhopper.2. Draftistoolow,blockedflue.3. Somethingisrestrictingfuelflow.4. Hopperlidnotclosedproperly.5. Feedmotororcombustionblowerhasfailed.

SMOKE IS VISIBLE COMING OUT OF VENT1.Air-fuelratioistoorich.a.Feedratetoohigh.b.Drafttoolowcausedbyagasketleak.

LOW HEAT OUTPUT1. Feedratetoolow2. Drafttoolowbecauseofgasketleak.3. Poorqualityordamppellets4. Combinationof1and2.

FuelThePF-120PelletFurnaceisapprovedforburninganygradeofpelletizedbio-massfuel.It should be noted, however, that higher ash contentwillrequiremorefrequentashremoval,scrapingoftheburnpot,andmayprovidelessBTU'sperpound.Themoisturecontentofpelletsmustnotexceed8%.HighermoisturewillrobBTU'sandmaynotburnproperly.Fuel shouldnot be storedwithin the furnace installationclearancesorwithin the space required for chargingandashremoval.

C. Troubleshooting


7 Reference Material

THE FURNACE IS HOT WHILE IN OPERATION.KEEP CHILDREN, CLOTHING AND FURNITURE AWAY. CONTACT MAY CAUSE SKIN BURNS.

KEEP COMBUSTIBLE MATERIALS SUCH AS GRASS, LEAVES, ETC. AT LEAST 3 FEET AWAY FROM THE POINT DIRECTLY UNDER THE VENT TERMINATION.

A. Safety RemindersWhen operating yourHarman®PF-120Pellet Furnace,respect basic safety standards.Read these instructionscarefullybeforeyouattempt tooperate thePF-120PelletFurnace.Failuretodosomayresultindamagetopropertyorpersonalinjuryandmayvoidtheproductwarranty.CAUTION: This appliance must be vented to the outside.Duetohightemperatures,thisfurnaceshouldbeplacedoutoftrafficandawayfromfurnitureanddraperies.Childrenandadultsshouldbealertedtothehazardsofhighsurfacetemperaturesandshouldstayawaytoavoidburntoskinand/orclothing.Youngchildrenshouldbecarefullysupervisedwhentheyareinthesameroomasthefurnace.Clothingandotherflammablematerialsshouldnotbeplacedonornearthisfurnace.Installationandrepairofthisfurnaceshouldbedonebyaqualifiedserviceperson.Theapplianceshouldbeinspectedbeforeuseandatleastannuallybyaqualifiedserviceperson.More frequent cleaningwill be required. It is imperativethat control compartments, burners, and circulating airpassagewaysofthisfurnacebekeptclean.Disposal of ashes:Ashes should be placed in a steelcontainer with a tight-fitting lid and moved outdoorimmediately.Theclosedcontainerofashesshouldbeplacedonanoncombustiblefloororontheground,wellawayfromallcombustiblematerials,pendingfinaldisposal.Iftheashesaredisposedofbyburialinsoilorotherwiselocallydispersed,theyshouldberetainedintheclosedcontaineruntilallcindershavethoroughlycooled.Otherwasteshallnotbeplacedinthiscontainer.Soot and fly ash: Formationandneed for removal.Theproductsof combustion contain small particlesof flyash.Theflyashwillcollectintheexhaustventingsystemandwillrestricttheflowofthefluegases.Pelletfuelshavedifferentashcontentsdependingonwhattypeofwoodhasbeenusedtomakethepellets.We recommend to clean the system after approximately 1 ton of pellets have been burned and judge from that how often the furnace should be cleaned, remember if you change pellets it may change how often you have to clean your furnace. Whenburningwoodslowly,thepotentialexistsforcreosotetoform.Theventingsystemshouldbeinspectedperiodicallythroughout theheatingseason todetermine if a creosotebuildup has occurred. If a significant layer of creosotehasaccumulated(3mmormore),itshouldberemovedtoreduce the riskofachimneyfire. Ifafireoccurs,call thefiredepartment,shutdownthefurnace,andevacuatetheresidence.Before using the appliance, have the ventingsystem thoroughly inspected and replace any damagedcomponents.

THE STRUCTURAL INTEGRITY OF THE MOBILE HOME FLOOR, WALL, AND CEILING/ROOF MUST BE MAINTAINED.

MOBILE/MANUFACTURED HOME GUIDELINES DO NOT ALLOW INSTALLATION IN A SLEEPING ROOM.

USE OF IMPROPER FUELS, FIRE STARTERS OR ALTERING THE FURNACE FOR HIGHER HEAT OUTPUT MAY CAUSE DAMAGE TO THE FURNACE AND COULD RESULT IN A HOUSE FIRE. USE ONLY APPROVED FUELS AND OPERATION GUIDELINES

WARNING!

WARNING!

WARNING!

CAUTION!

CAUTION!

INSPECT FLUE PIPES, FLUE PIPE JOINTS, AND FLUE PIPE SEALS REGULARLY TO ENSURE THAT SMOKE AND FLUE GASES ARE NOT DRAWN INTO, AND CIRCULATED BY, THE AIR-CIRCULATION SYSTEM.

CAUTION!


The Low Draft Pressure Switchisadifferentialpressureswitchthatmonitors thenegativepressure (Draft) in the firebox. If thedraftbecomestoo lowforpropercombustion, theswitchopens,cuttingpowertothefeedmotorandtheignitercircuits.ThisswitchisconnectedintotheAC(highvoltage)wiring.

TheControl Board/ESP combination is responsible forall highlimitsafetycontrol.Thereare2highlimits,onenormaloperationhighlimitandonebackuphighlimit.Thecontrolhasanautomaticdiagnosticcircuit thatcontinuouslymonitors theESPandRoomSensorforfaults.Ifafaultshouldoccur,thecontrolsendsastatusalertandatthesametimetheunitgoesdowntominimumfeed/minimumburnasasafetycondition.

Low Draft Pressure Switch

Feed Motor

Combustion Motor

B. Motor and Component Location

PF-120 Pellet Furnace Safety Devices

Igniter

Circuit Breaker Box

UPS ConnectionNOTE: UPS connection only for power failure shut down

ESP


Minimizing Smoke During Loss of Power Using Battery Back-upHarman® strongly recommends installing battery back-up to minimize entry of smoke into the room in the event of power loss.Yourpellet/biomassburningappliancereliesonacombustionblowertoremoveexhaust.A power failurewill cause the combustion blower to stop.Thismay lead to exhaustseepingintotheroom.Verticalriseintheventingmayprovidenaturaldraft.Itis,however,noguaranteeagainstleakage.Below are Harman® approved battery back-up options for your appliance:Uninterruptible Power Supply (UPS) UPSbatteryback-upsareavailableonlineoratcomputerandofficeequipmentstores:

• The APC (American Power Conversion) model #BX1500G and the TrippLiteOMNIVS1500 are tested and approved. Other brands or models may not becompatible.

Whenpowerislost,afullychargedUPSwillpowerasafe,combustionbloweronlyshut-down.Yourappliancewillpulsetheblowereveryfewsecondstoclearexhaustuntilthefireisout.NOTE: The UPS provides safe shut-down only. It is not intended for continued operation.Yourappliancewillrecognizewhenpowerisrestored.WhathappensdependsonESPtemperature:

• In “Automatic” setting, unitswillrespondtothesetpointandESPtemperatureandresumenormaloperation.

• In “Manual” setting:• IftheESPiscool,theappliancewillremainshutdown.• IfthefireisoutandtheESPisstillwarm,thefeedermayrestart.Sincethefireisout,theESPtemperaturewillnotrise.Theunitwillthenshut-down,andmayflashasix-blinkstatuserror.(SeeESPerrorcodes)

• Ifthefireisstillburning,itwillresumenormaloperation.ContactyourdealerifyouhavequestionsaboutUPScompatibilitywithyourappliance.CAUTION! Always keep appliance doors and hopper lid closed and latched during operation and during power failures to minimize risk of smoke or burn-back.CAUTION! Use only Harman® approved battery back-up devices. Other products may not operate properly, can create unsafe conditions or damage your appliance.

C. Loss of Power Addendum


Loss of Power Addendum (Cont.)

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7


Harman®,abrandofHearth&HomeTechnologies 352MountainHouseRoad,Halifax,PA17032

www.harmanstoves.com

D. Contact Information

PleasecontactyourHarman®dealerwithanyquestionsorconcerns.ForthelocationofyournearestHarman®dealer,

pleasevisitwww.harmanstove.com.

- NOTES -

________________________________________________________________________________

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________________________________________________________________________________

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PrintedinU.S.A.-Copyright2012

DO NOT DISCARD THIS MANUAL

NOTICE

• Leave thismanualwithpartyresponsibleforuseandoperation.

• Important operatingand maintenanceinstructionsincluded.

• Read,understandandfollowtheseinstructionsforsafeinstallationandoperation.


E. Q

uick

Ref

eren

ce G

uide

Qui

ck R

efer

ence

Gui

de (

Aut

o-Li

ght )

1.TurnModeSelectortoOFF.

2.U

seshakerhandletocleantheheatexchangertubes.**

3.S

crapetheairholesintheburnpot.**

4.Fillthehopperwithpellets.

5.TurnFeedAdjusterto“Test”.*

6.C

hecktheCom

bustionBlowerandFeederM

otorforoperation.*

7.TurnFeedAdjusterbacktothe#4setting.

8.TurntheTempDialtothedesiredtemperature.

9.TurnallotherFurnaceControlknobstothesettingsshow

n.*

10.FliptheAuto-Lightswitchup.*

Thefurnacewilligniteifthetemperatureintheroom

islessthanthetemperature

setontheWallC

ontrol.

* Se

e th

e se

ctio

n on

Ope

ratio

n fo

r inf

orm

atio

n ab

out M

anua

l Lig

htin

g.**

See

the

sect

ion

on M

aint

enan

ce fo

r mor

e de

tails

abo

ut c

lean

ing.

Tem

p Di

alMo

de S

elect

or

“Tes

t”

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