MorrHeat MH480B User manual

Waste Oil Fired Heaters

Installation, operation and service instructions

120v Manual

Page 2MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Table of Contents

Important Information Page 3

Notice Page 4

SpecicationsPage5

Hanging or Mounting of the Heater Page 6

Venting, Oil Supply Tubing, and Wiring Page 7

Oil Burner Components Page 10

Initial Start Procedure Page 13

Suggested Maintenance Page 14

ReferenceMaterialsPage15

Troubleshooting Page 16

Warranty Information Page 18

Warranty Card Page 19

Page 3MorrHeat - Most Heat In The Industry - Rev 1/31/2019

IMPORTANT INFORMATION

Taking Delivery of Equipment:

When taking delivery of your equipment, please be sure to check the shipment for any

potential damages (MorrHeat is not responsible for any damaged shipments if signed for

non-damaged).Ifanydamageisidentiedupondelivery,eithersignforasdamagedgoods

specicallynotingindetailtheapparentdamage/or/refusetheshipmentcompletelyand

besuretoleaclaimwiththeshippingcompanyimmediately regardless of the damage.

Wasteoilcontainsvariousunknownmaterialsandmayalsocontainrandomamounts

ofgasolineorothervolatilefuels.Specicsafetyandhandlingprecautionsshouldbe

consideredwhencleaning,maintainingandoperatingwasteoilheaters.

It is recommended to use a lter or some kind of strainer when pouring waste oils into the storage tank(s).

This will increase chances of catching any particulates prior to the pump lter(s) to insure a cleaner fuel

source.

WARNING:

Wasteoilheatersshouldnotbeusedinanyhazardousareasthatmaycontainammableor

volatilevaporsorevencombustibledusts.Itisnotrecommendedtouseawasteoilheaterin

anyareasthatmayhavechlorinatedorsimilarchemicalvapors.Thiswillcausedeterioration

&corrosionofthemetalstheequipmentisconstructedof(thiswouldvoidthewarranty).

Antifreezedoesnotburnandwillinterrupttheperformanceoftheunitandpotentiallyshut

downcompletelyuntilre-primedandrestarted.Iftoomuchantifreezeispresentjustlike

water,theunitwillnotre.Donotexposeunitstowater,moistureorrain.Thisisaninside

unit, not designed for outdoor use.

Oils and different Viscosities that can be burnt, but not limited to:

*UsedMotorOils*TransmissionFluid*HydraulicFluids*DieselFuels

Donotuseoldcontaminatedoilsorfuelsandkeepinmindundergroundtanksandoutdoor

oilstoragecouldhaveunknownamountsofwaterandmoisture,outsidebarrelswillleak

waterandmoisturesthroughthebunghole.

IMPORTANT:

Theinstructionsandinformationwithinthismanualareprovidedtoremindyouofany

warningsandtoassureyouhaveproperlyandsuccessfullysetuptheequipmentpurchased.

Theinformationisalsointendedtohelptheenduser/installerbeawareoftheoperations

and service required for optimal performance. These heaters are recommended for primary

oranauxiliarysourceofheatbutarenotrecommendedforuseasthesolesourceofheat

incaseofanyexpectedorunexpecteddowntimewiththeunit.Ifasteadysupplyoffuelis

notpresentorinterruptedattheburnerunit,theburnerunitwillshutdown.Beprepared

withanalternatesourceofheattoinsurethebuildingandallpipesarenotatriskoffreezing

temperatures.

Page 4MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Toinsurethebestperformance,optimalefcienciesandheatoutputoftheheatingunit,itis

recommendedandnecessarytobecomefamiliarwithyourunitandtheproceduresneeded

withinitiallystarting,running,cleaningandmaintainingtheheatingunit.

Itisimportanttorememberwhenburningusedordirtyoilsthatcontaminantscouldbe

present.Becauseofvariouscontaminates,beawareofneedingtochangelterswhen

needed.Keepthechamberandheatexchanger(s)passagewaysclean.Makesurethefuel

pump is primed and lines are free of any debris, air bubbles or interuptions.

Draftisjustasimportantastherest;baddraftcancauseseriousproblemsandnotallowthe

gasseswithintheunittocorrectlyleavetheheatingunit.Correctdraftisneededforoptimal

performance.Baddraftwillcauseover-reoroverheatingduetobottlinguptheheator

creating back pressure back in to the heating unit. If black smoke is present, bad draft, bad

combustion or both is occuring.

Improperinstallationandorneglectedmaintenancewillvoidthewarranty.Avoiding

maintenanceoftheunitcancauseoverreoroverheatingoftheunitandpotentiallycreate

cracksinrandomweldedareasoftheheatingunit.

NOTICE

Page5MorrHeat - Most Heat In The Industry - Rev 1/31/2019

MODEL MH80 MH160 MH240 MH320 MH480

BTU INPUT 80,000 160,000 240,000 320,000 480,000

BTU OUTPUT 65,000 130,000 205,000 275,000 400,000

GPH 0.5 1.0 1.5 2 3

VOLTAGE 120 v 120 v 120 v 120 v 120 v

CYCLES 60Hz 60Hz 60Hz 60Hz 60Hz

AIRFLOW 30 FT 50FT 70 FT 80 FT 100 F T

CFM's 150 0 3000 4500 6000 8500

FLUESIZE 6” 8” 8” 8” 8”

DIMENSIONS

L|W|H

L56"

W30"

H24.5"

L61"

W36.75"

H24.75"

L61"

W41"

H31.5"

L71"

W38.5"

H31.5"

L82.5"

W47"

H38.75"

HANGING

WEIGHT

204

LBS

320

LBS

423

LBS

486

LBS

714

LBS

Specifications

Heaters

Bi-Directional models avaiable in MH320 & MH480 models only.

Page 6MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Notes:

1. Allillustrationsandspecicationsarebasedoncurrentinformationavailableatthetime

of publication approval. MorrHeat reserves the right to make product changes at any

time. These heaters are designed for indoor commercial and industrial use. Installation

anduseofthiswaste-oilburningapplianceshallbeinaccordancewiththeStandardfor

theInstallationofOilBurningEquipment-ANS/NFPA31-2016,andNationalElectricCode-

ANSI/NFPA70-2017andtherequirementsoftheinspectionauthoritieshavingjurisdiction.

2. Output depends on viscosity of oil being burnt.

3. Air Pressure for all fuels 8 - 14 P.S.I (preset by MorrHeat).

4. Suggestedmaximumoutletairtemp.200degreesF.(93degreesC).

5. Clearance from all combustible materials on all models should be no less than:

MOUNTING DIMENSIONS:

MODEL A B

HANGING OR

MOUNTING THE HEATER

Whenmountingtheheater,makesuretheheatingunitisatleasttwentyinches(20”)away

fromanycombustiblematerials.Aminimumofthirtysixinches(36”)awayfromthefrontof

the unit is recommended.

TOP- 20” BOTTOM- 20” SIDES- 20”

REAR- 20” FRONT- 36” FLUE PIPE- 20”

MH80 32"  13"

MH160 35.25" 22"

MH240 35.5" 25"

MH320 45.25" 25"

MH480 57.5" 30.5"

Page 7MorrHeat - Most Heat In The Industry - Rev 1/31/2019

FUEL SUPPLY LINES

• Useonly3/8”IDcoppertubingwitharettingsfromthetanktothefuelpumpassembly

andthefuelpumpassemblytotheheatingunit.Ferrulettingsarenotrecommended

andTeontapeisnotneeded.UsingaTeontapeorliquidsthatdryonthethreadsin-

creasesthepotentialofcreatingapieceorakeofthematerialthatcouldblockpassage-

ways.

• Alwayskeepthefuelsuctionlineatleastsixtoeightinches(6”-8”)fromthebottomof

theoilstoragetanktopreventsuckingwaterandsludgefromthebottomofthetank.

Drainwaterandsludgefromthebottomofthestoragetankwhenneeded.

• It is recommended to use an inside supply tank vs. an outside or underground tank. If

pullingfromanundergroundtankitispossibleasecondarytransferpumpwouldbe

needed(NotProvided).Outsidestoragetanksorbarrelscanhavewatermixedinwiththe

fuelsupply.Thiswillcreateissues(NotRecommended).

• Thefuelpumpassemblythatcomesstandardwitheveryunitneedstobemountedat

tanklevelorbelow.Settingthefuelpumpassemblyatgroundlevelwillfunctionproper-

ly.Thefuelpumpwillpushoilupto100fthorizontal&upto25ftvertical.

VENTING INSTALLATION

1. When installing the vent pipe, be sure all connections are fastened correctly to insure no

leaks and proper draft is achieved. Minimum draft through the unitis,-.02-whencheck-

ingthroughthesightorameinspectionportdirectlyabovetheburnerassembly,with

draftmeter.Draftupthestackmustbe-.04to-.06inchesofwatercolumnwhencheck-

ing a draft meter for proper draft readings.

2. Ifproperordesireddraftisn’teasilyachieved,athirdpartydraftinducerorpowervent

may be needed to prevent back draft from occurring (not provided).

3. Install a barometric damper (NOT included) in the stack only if the draft up the stack

exceeds-.08.Draftupthestackmustbe-.04to-.06inchesofwatercolumn.Checkwith

draftmeterbetweenthetopoftheheateranddamper.The draft should be a minimum of

-.02-checkedthroughameinspectionport.

4. Keepthedraftmoving.Ifdraftistoosloworbottlesup,thiscouldcreateabackdraftand

over-reoroverheattheunit.Ifadamperispresent,losingthedamperwillincreasedraft

makesurepassagewaysarecleanandclear.

Page 8MorrHeat - Most Heat In The Industry - Rev 1/31/2019

• Besurewhenprimingorbleedingthefuelpumpthatyouallowenoughtimetocompletely

burpanyandallairwithinthesystemoutofthefuelpumpandfuellines.Ifanyskipsor

slightinterruptionsarestillpresentinthesystem,itislikelytheunitwillnotproperlyignite

orrunwithoutasteadyandconsistentfuelsupply.Theamesensorneedstorecognize

ameinthechamberoritwillnotignite.

• Itisnecessarytoconnectthe3/8”IDcopperfuellinefromthestoragetanktothelter

housing, to the fuel pump inlet that is located on the same side as the bleeder valve. Once

connections are secure, continue the fuel line from the fuel pump assembly to the burner

assembly.

WIRING

• Youwillneedtowire120vpowerintothemain electricalpanelmounteddirectlyonthe

backsideoftheheatingunitwithseparate20ampcircuitprotectionusing12-gaugewire.

• Makesuretoconnectthepowerlinetotheblackwireandallwhitewireswhichareneutral

orcommontogether.It’sveryimportantthatthegroundwiregetsconnectedtoamounting

pointwithinthemainjunctionboxoratleastgrounded.

• Wiresfromthemainjunctionboxneedtobeconnectedtothefuelpumpassemblypower.

Yellowconnectstoyellowandtheneutralorcommonconnecttogether,whichiswhiteto

white.

• Thelowvoltagethermostatneedstobewiredtothe“T”terminalsontheoilprimary,located

onthetopoftheburnerassembly.(wirediagrampg.10)

NOTICE

Installationanduseofthisproductshallbeinaccordancewiththestandardforoilburning

equipmentANSI/NFPA31-2016alongwiththenationalelectriccodeANSI/NFPA70-2017,the

requirementsoftheinspectionauthoritieshavingjurisdiction.

Page 9MorrHeat - Most Heat In The Industry - Rev 1/31/2019

120v Schematic

BACK PANEL

CABINET

FUEL PUMP

Page 10MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Oil Burner Technology

MorrHeat’swasteoilburnertechnologyimprovestheefciencyoftheoilburnprocessby

continuouslyburningthewasteoilwithnointeruptions.

ThewasteoilentersintotheOilPre-HeaterBlockandispre-heatedtoaspecictemperature

setpoint. Then compressed air from the air compressor is infused with the oil prior to

spraying out the nozzle by breaking up the oil particles into a ner mist or spray. The

electrodes mounted above the nozzle provide an electrical arc across the electrodes to

ignitethe neoil mist as it sprays out of the nozzle.  Onceignited the ame is forced

intoavortexcausedbytheburnersblowerandameconeprovidingaveryefcientand

thorough burn.

(See page 12-13 for parts & components)

P a g e 11MorrHeat - Most Heat In The Industry - Rev 1/31/2019

• Igniter Transformer: Supplies high voltage to the electrodes generating

electrical arc igniting the oil. Transfers the high voltage from the igniter

transformer to the electrodes.

• SolenoidOilValve:Openswhenburnerisrunningandcloseswhenburneris

not running eliminating bleed back of oil out of the Pre-heater block.

• AirBand:Adjustsamountofairintroducedintothecombustionchamber.Air

bandisadjustedatthefactoryforoptimumperformance,closedto1"inch

open.

• Oil Primary Control: Controls the oil burner ignition. Checks for ame in

thecombustionchamber,ifnoameisdetectedwithin45seconds,theoil

primarywillshutdowntheoilburner.Torestarttheunit,resettheredbutton

ontheoilprimary.Hardlock-outmayrequireholdingtheresetfor30-45

secs.

• Oil Pre-Heater Block: Pre-heats the oil and air before entering combustion

chamber.

• PhotoEye:Sensesameincombustionchamberandsignalsoilprimarywhen

noameispresent,toshutdownorlock-outthesystemfromoperating.

• AirPressureGauge:Displaysairpressuresuppliedbyonboardaircompressor.

(8-14 PSI depending on unit)

• AirMufer/Filter:Filtersairandquietsthesoundgeneratedbythecompressor.

• Pre-Heater Control Circuit Board: Controls temperature of the Oil Pre-Heater

Blockandcontrolssafetyfeatureofnotallowingburnertoenergizeuntil

oilhasestablishedoperatingtemperaturesetpointorshutdownburnerif

Pre-HeaterBlocktemperaturefallsbelowshutdowntemperaturesetpoint.

Oil Burner Components

P ag e 12MorrHeat - Most Heat In The Industry - Rev 1/31/2019

• Electrodes: Provides continuous high voltage electrical arc from electrode to

electrodeignitingthewasteoilasitisbeingsprayedoutofthenozzle.

• Nozzle:Low-pressurenozzle.(3pc.andcleanable)

• FlameCone:Flameconeforcestheameintoaswirlpatternimprovingthe

ameforacompleteburn.

• BurnerMotor:Multitaskmotorturnstheburnerblowerandintegratedair

creates combustion and atomization air at the same time.

• Air Pressure Adjuster: Adjusts the air pressure going to the pre-heater

block.Shouldbeadjustedbetween8PSIand14PSIasindicatedontheAir

Pressure Gauge.

• OilFilterWithHousing:Thefuellterwithhousingallowsaneasyspinon/

offfeaturemakingitsimplewhenchanginglters.Pre-lterstheoilprior

to the burner.

• PowerIndicator:Indicateswhenpowerispresentattheburner.

• Run Indicator: Indicates that the burner is ready for operation after the initial

pre-heat, this process could take 3-4 minutes to pre-heat the system.

• Suntec/WebsterFuelPump:Singlestagefuelpumpwillpushthewasteoil

25ft.vertical,and100ft.horizontal.(Alwaysrunfuellinesuptotheburner,

neverdown,oryoucouldcreateanairpocketinthesystem-HardtoBleed)

P a ge 13MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Initial Start Procedure

1. Make sure the heating unit and all components have been properly and securely installed.

2. Checkthatallelectricalconnectionsandhook-upsareproperlywiredandconnected.

3. Itisrecommendedpriortoprimingthefuelpumpandbleedingtheairtopre-llthefuel

ltertohelpspeeduptheprocess.Forasecondarycheckyoucanalwayspressurizethe

fuellinestoeliminateanypotentialleaksinthelineorttings.Consistentfuelsupplytothe

burner is very important.

4. Check that venting connections are properly installed and connected from the heating unit.

5. While rst starting the unit it may take several minutes to get the oil in the pre heater

block up to temperature. Once the oil reaches the desired temperature, oil is then supplied

through the fuel pump assembly and burner assembly. Make sure burner and pump are

turned on.

6. Optimaldraftwhenrunningtheunitisanotherveryimportantpartoftheprocess.Besure

desireddraftisachievedwhileburnerisrunning.Ifexhaustfansarepresentinthebuilding,

itispossibleyouwillneedadraftinducerorpowerventofsomekind(notprovided).

7. Thermostatmustbeoffwhilesupplyingpowertotheburnerassembly.

8. Aftertheoilinthepreheaterblockhashitthedesiredtemperature,whiletheburneris

running,brieyjumpthe“F”terminalsontheoilprimarytoallowtheburnertorunduring

the fuel pump and priming procedure.

9. Afterbleedingthefuelpumpandameisestablishedattheburnerassembly,removethe

temporaryjumpersonthe“F”terminalsontheoilprimarycontrol.Thisallowsthesafety

features of the controls to operate properly.

10. Adjustairpressureto8-14psiifneeded.(canvaryduetogeographicarea)(presetfrom

manufacturer)

11. Air band on the side of the burner assembly should be closed to 1” open (pre set from

manufacturer)Opentoofarcancausedelayedstartornore.

13 . Afterproperlyrunningandallminoradjustments,ifany,aremade(presetfrommanufacturer)

Checkinspectionportforbrightyellownotorangeame.

14.Flameshouldbehalfwayorlessdownthechamber.

15.Useadjustmentscrewontheaircompressortoachieveproperair(8-14psi)

16.Contactinstallerormanufacturerforfuelpumpadjustmentifneeded

DONOTSTARTHEATERWHENDELAYEDSTARTHASOCCURREDANDCHAMBER/HEAT

EXCHANGERSAREHOT,LETUNITCOOLBEFOREATTEMPTINGANOTHERRESTART&

CHECKFORACCESSIVEOILINTHECHAMBERPRIORTORESTART.TOOMUCHOILINTHE

CHAMBERUPONRESTARTCANCAUSEABACKFIREINTHECOMBUSTIONCHAMBER.IF

TOOMUCHOILISPRESENT,ITISRECOMMENDEDTOCLEANORWIPEUPASMUCHAS

POSSIBLEBEFOREARESTARTTOAVOIDTHISFROMHAPPENING.

Page 14MorrHeat - Most Heat In The Industry - Rev 1/31/2019

SUGGESTED MAINTENANCE

ITISRECOMMENDEDTHATYOURFACILITYGETSONAREGULARMAINTENANCESCHEDULE

ANDORSETREMINDERSOFCLEANINGANDMAINTENANCEOFTHEHEATINGUNIT,TANK,OIL

FILTER,AIRFILTERSANDALLOTHERWORKINGCOMPOENTSANDCONSUMABLESTHATMAY

NEEDATTENTIONORREPLACEDBEFOREORDURINGSEASON.

Make sure the unit is clean prior to every heating season

HIGHLYRECOMMENDEDTOTURNPOWEROFFORUNPLUGTHEBURNERUNITWHEN

CONDUCTINGCLEANINGANDMAINTENANCE

Monthly:

• Check the ash build up periodically for optimal performance

• Removeallashwhencleaningthecombustionchamberandheatexchangers.Theviscosity

andoil’sbeingburnt,cleanlinessoftheoilandruntimeplayafactorwhendetermininga

maintenanceschedule.Everyenduserwillhavealittledifferentschedulewithallfactors

considered for every location and application.

• Checkorchangeoillter

• Checkorchangeairlters

• Cleanameconeifneeded

Twice Per Season:

• Cleanorchangefuelpumplter.Fuelpumpcovercomesofftoaccesslter,gasketinside

may also need to be replaced.

• Inspect,adjustorreplaceelectrodesifneeded(Seepartdescriptionfordesiredsetting)

• Drainexcesswaterandsludgefromfuelstoragetank(s)

Once Per Season:

• Removeashbuildupwithintheventpipe

• Replacenozzleifneeded(willerodeovertime).Whenreplacingmakesurethenozzlesticks

slightlypasttheendcone(1/4”pastinsideradiusofamecone)toinsurenobuildupofoil

occursatthenozzleandamecone.

• Check thevanes and carbonplatesforanychips,cracksor wearwithintheonboard air

compressor, replace vanes and carbon plates if needed.

The cleaner the unit, the better it performs and longer it lasts!

Page15MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Electrode Adjustment Reference

When cleaning, inspect all

three pieces thoroughly.

NOZZlE ASSEMBLY REFERENCE

SnapSwitch

Thermocouple

Pre-Heater Control Board

Pre-Heater Oil Block

Electrodes

Nozzle

Combustion Chamber & Heat

Exchanger Clean-out Door Reference:

CleanOutDoors

HeatExchangers

Combustion Chamber

CleanOutDoors

Vent Port

HingedDoors(2)

Burner Mount

Chamber Sight Port

3/8 from tip/center of

nozzle ush with the

Electrodes.

Electrodes

3/16evenbetweenElectrodes

Heat Rod

Page 16MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Troubleshooting

1. Heater shuts off

2.Lossofprime

overnight

▲Manualreset

▲Vacuumairleakinairline

▶Pluggedlterortankempty

▼Pluggedpumpscreen

▲Requiredmanualreset

▲Tightenallfuelconnections

▶Checkpumpscreen

▼Cleanlter(useventport),reprimepump

3.Fails to Start ▲Vacuumleak

▲Inadequatefuelsupply

▶Nopressure

▶Nopre-heat

▶Autostartcircuitnot

functioning

▶Noarc

▶Noairpressure

▲Openbleederportifairispresent.

▲Cleanlter.Checkallfuelconnections.Tightenttings.

▶Check,mayneedcleaning-toaccess,remove,pumpcover.

▶Useventport,andreprimepump.

▶Besureallwiringtopre-heateristight.

▶Badheatrod-replace.

▶Checkcircuitcontrolboardandreplaceifnecessary.

▶Checkcontinultyatterminalsofheatrodlimitsnapswitch.

▶Checkspringstoelectroderodadjustment(undertransformer)-make

sure they have good contanct. Open burner door and make sure electrode

tipsaren'ttouchingamecone.

▶Checkpressureregulatorandadjust.Checkairsupplylinefor

restrictions or leaks. Pull compressor cover and inspect carbon vanes.

Mayneedtoreplace.Checklter,cleanifneeded.

4. Reduced air pressure

and can’t increase

▲Gaugemaybebad.

▲Intakeltermuferisplugged

withdustordirt.

▶Exposedtowinter

▼Compressorvanesmaybe

worn

▲Replacegauge

▲Remove&cleanwithcarburetorcleaner,drythoroughly.Donotuse.

▶Removecover,cleanrustwithemerycloth

▼Replacecarbonvanes

5.Hardstarting

(Diminishedame)

▲Pariiallypluggedlter.

▶Restrictioninnozzleusually

onlywheninitiallyinstalled.New

lines may have foreign material

in them.

▶Airbandopentoofar

▼Outoffuel

▼Nooiltoburner

▲Cleanlter.Usingventport-reprimepump

▶Removenozzleandcheckforforeignobjects

▶Aluminiumblockpre-heaterinsideburnershouldnotbuildupcarbon.

If carbon present, pre-heat circuit is malfunctioning. Thermocouple heat

sensorwirecouldhaveopencircuit.Heatcontrolboardmayhaveblown

circuit and circuit board fuse. Inspect both and replace either if needed.

▶Closeairband-whileviewingame;openairbandslowlyunitl

combustion chamber a clear, not orange

▼Rellstorage

▼Cleanpumpscreen-removepumpcover.Usingventport,re-prime

pump.

Problem

Cause Suggestion

▲ Mostlikely|| ▶Lesslikely|| ▼LeastLikely

P a g e 17MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Ifyouexperiencingtechnicalorservicingissuesandhaven't

beenabletodiagnoseandxthepotentialissue,pleasecontact

uswithanyquestionsMonday-FridayPST.AthirdpartyHVAC

or mechanical contractor may, need to be contacted if trouble

shooting over the phone still does not solve the potential issue. If

a third party is involved MorrHeat is not responsible for any fee

associatedwiththeserviceprovidedbyathirdparty.

Attention

6. Heater cycles

frequently,without

set temperature being

reached

▲Heateroverring

▶Highlimitsafetyswitchbad

▼Temperaturesettingwrong

▲Investigateandlocatereasonforoverring.I.enozzleeroded,pump

not functioning properly, decrease pump motor speed.

▶Replacehighlimitfansafetyswitch

▼Checktemperaturesettingandadjustasnecessary.

7. Heater rumbles and

excessiveheatblowback

fromamevisionport

▲Pumpsettingwrong

▼Draftincorrect.Ifproperdraft

can't be achieved. Heater could

haveexcessiveamountofash

andwon'tallowsufcent

draft

▲Pumpnotfunctioningproperly-overring.MayneedRPMreadjust.

Resetameslightlylessthan1/2waydowntubecombustionchamber.

Useadjustmentknobonpumpmotor.

▼Setdraft.Cleanoutcombustionchamberandexchangersofash.

Check draft-reset if needed.

8. Heater establishes

amebutlocksoutor

shuts off. Need to reset

primary.

▲Photoeyecan'tseeame

▼Duetobackdraft.Flameend

cone may have ash.

▲Cleanphotoeyewhichissmokedupbybackdraftsmoke.

▼Swingopenburnerdoorandcleanashbuildupfromameendcone.

9. Proper draft setting

can't be achieved

▲Negativedraftinbuildingor

exhaustfanspresent.

▼Excessiveashbuildup/heater

▲Mayneedtoinstallpowervent/draftinducer'sinstack.

▼Cleanashandsootfromcombustionchamberandheatexchangers.

10. Poor or reduced heat

production

▲Flametoosmall

▶Excessiveashbuildup

exchangers

▶Throughvisionport,check

ametoseeifameissmaller

than usual.

▼Entirefuelsupplymaybe

plugged.

▲Nozzlemaybepluggedwithdebris-usuallyafterlteriscleaned.

▶Cleanashfromcombustionchamberandexchangers.

▶MayneedtoreadjustpumpRPM.(Useknobonpumpmotor).

▼Cleanlterboth,oilstrainerandoilpumpscreen.

Page 18MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Warranty Information - 10 Year

MorrHeatwarrantsthematerialsandworkmanshipwillbefreeofdefectsforthedurationof

thewarrantyspecied.Warrantyisvalidfromthedateofdeliveryandwarrantycardmustbe

sentintoMorrHeatwithin30daysofdeliverydate.MorrHeatisnot responsible for damaged

goods. Please check your shipment for any damages. If damages are apparent, either sign

for the shipment as damaged goods and le a claim immediately or refuse the shipment and

le a claim immediately. Nothing can be done for damaged goods that have been signed for

non-damaged,theshippingcompanywilldenythoseclaimsifledandMorrHeatwillnotbe

responsible.

Warranty is void if heating unit is improperly installed and neglected of proper routine

maintenance. Warranty is also void if contaminants and corrosives have been attempted or

burnt in the heating unit. Chemical’s such as, but not limited to, chlorine can deteriorate the

metalswhenintroducedtohightemperatures.

Ifa defecthasoccurred(badmetals,weldsetc.),MorrHeatreservestheright todetermine

ifthedefectcanberepairedoracompleteunitswapisnecessary.Picturesoftheunitand

potential defect will be required.  All returned items must be approved by MorrHeat and

returnedwithaRA#(returnauthorizationnumber).PleasecallMorrHeattoacquiretheRA#

information and process.

MorrHeat's warranty covers the combustion chamber, heat exchanger(s) and framework.

Warrantyisfordurationoften(10)yearsinwhichtherstve(5)yearsisafullwarrantyrepair

orreplacementandthelastve(5)yearsisafty,fty(50/50)splitonrepairorreplacement.

ThePre-Heaterblockhasaten(10)yearfullwarrantyandMorrHeatextendsthemanufacturer's

warrantysubjecttotheirtermsandconditions,one(1)yearonallotherpartsandcomponents.

Warranty is Void if

Warrantycardisnotreturnedwithin30daysofdeliverydate

Parts or equipment have

been altered from original manufactured state

Installed improperly

Maintenance has

been neglected

Heater has been misused

Wired incorrectly

Unithasbeenoverredor

over heated

Unithasbeenoperatedincontaminatedconditionsorexposedtocorrosive

chemicals, such as but not limited to chlorine

Warranty is not transferable

MorrHeat is not

responsibleforadditionallabororfreightchargesunlessthereiswrittenanddocumented

arrangements and authorization from from MorrHeat.

Page 19MorrHeat - Most Heat In The Industry - Rev 1/31/2019

DateofPurchase:

Serial#:

Model#:

Customer (Company) Name:

Address: City:

State: ZipCode:

Contractor:

Address:

City: State:

ZipCode:

Installed By:

REMINDER:

Warranty coverage is specic to the materials and workmanshipofthe unit and does not

coveradditionallaborandfreightchargesunlesswrittenauthorizationisprovided.Warranty

assuresandcoversweldswhenmaintainedandusedproperlybutdoesnotcoverstresscracks

causedbyexcessiveheatoroverre.Baddraft,backdraftorsimplytoomuchfuelandtoo

largeofameareadirectcauseofanoverreoroverheatedunit.Neglectedmaintenance

andcleaningtheunitisanotherdirectcausetooverringoroverheatingtheunit.Keepyour

unit clean and maintained properly for best performance and longevity of the unit

WARRANTY CARD

Warrantycardmustbelledout&Returnedwithin30daysofdeliverydate

If return is deemed necessary for warranty evaluation and determination of repair or

replacement,unitheateristobesenttoMorrHeatwithfreightprepaid.MorrHeatreservesthe

right to determine appropriate action for repair or replacement.

NopartswillbeacceptedbyMorrHeatwithoutRA#(returnauthorization

number) clearly marked on outside of shipping package. Obtaining RA#

requires model and serial numbers, description of part being replaced and

natureofdefect.CallfactorytoreceiveRA#.

Page 20MorrHeat - Most Heat In The Industry - Rev 1/31/2019

Parts Included:

• Waste oil heater (1)

• Waste oil burner assembly (1)

• Wasteoilfuelpumpassemblywithspinonlter(1)

• Thermostat (1)

• Draftmeter(1)

What is Included

MorrHeat MH480B User manual

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