Enerco Heatstar HS2000ID User manual

Brand: Enerco

Model: Heatstar HS2000ID

Type: User manual

This manual is also suitable for

DIESEL SPACE HEATER-SERVICE MANUAL

1. CONTROLS AND COMPONENTS

2. FLAME CONTROL CYCLES

3. MAINTENANCE SCHEDULE

4. REPAIR PROCEDURES

1. FAN MOTOR ASSEMBLY

2. FUEL FILTER ASSEMBLY

3. FUEL PUMP ASSEMBLY

4. ELECTRIC PANEL ASSEMBLY

5. AIR PRESSURE SWITCH

6. COMBUSTION HEAD ASSEMBLY

7. COMBUSTION CHAMBER

5. TROUBLESHOOTING GUIDE

6. WIRING DIAGRAMS

7. TECHNICAL SHEETS

INDEX

HS2000ID, HS3000ID

HS3500DF, HS6000DF

L-S 102.00-BM

WARNING

The operations described in this booklet must be carried out by qualied and instructed personnel only.

Incorrect maintenance may result in improper operation and serious injury.

1 COMBUSTION CHAMBER

2 BURNER ASSEMBLY

3 NOZZLE

4 FUEL VALVE

5 DIESEL PUMP

6 MOTOR

7 FAN

8 FUEL FILTER

9 FUEL CIRCUIT

10 FUEL TANK

11 FUEL TANK PLUG

12 DRAIN PLUG

13 RESET BUTTON/LAMP OF

CONTROL FLAME

14 MAIN SWITCH

15 ROOM THERMOSTAT PLUG

16 CONTROL LAMP

17 POWER CORD

18 OVERHEAT THERMOSTAT

19 AIR PRESSURE SWITCH GAUGE

(LOW PRESSURE SIDE)

20 AIR PRESSURE SWITCH GAUGE

(HIGH PRESSURE SIDE)

21 FLAME DETECTOR (PHOTOCELL)

22 STACK

1. CONTROLS AND COMPONENTS

INDIRECT HEATER WITH STACK:HS2000ID & HS3000ID

DIRECT HEATER WITHOUT STACK:HS3500DF & HS6000DF

CONTROL PANEL

1514

CONTROL SYSTEM

The heater has all operational controls located in a watertight control panel mounted on the lateral side of the unit.

The control panel consists of:

 •a3-positionswitchforheatingfunction:normaloperation,stoporthermostatoperation

 •plugtoconnectaremoteroomthermostat

 •powercord

 •highvoltagetransformerthatgeneratesasparktoignitetheame

 •controlameboxtohandlestarting/runningcycle(seeparagraph2.).

 Thecontrolameboxisequippedwithareset

Thecontrolsystemutilizes:

 •asafetyshutoffswitchthatisanoverheatthermostatshuttingdowntheunitifthetemperatureofcombustion

 chamberandoutletairexceedthemaximumallowedlevel

 •anairpressureswitch,thatstopstheunitiftheairowisnotsufcientforcombustion

 •aamedetector,thatisaphotocellmonitoringconstantlytheamepresenceanditsintegrity

 •apairofignitionrodstocreatetheignitionspark

FUEL SYSTEM

Thefuelsystemconsistsof:

 •fueltank,thatissteel,corrosionproof

 Thefueltankhasadrainpluglocatedunderneathittoallowdischargeofresidualfuelbeforecleaning.

 •fuellter

 •fuelpump.Ascrewttedonthefuelpumpallowstheadjustmentoffuelpressuresetting

 •fuelON/OFFsolenoidvalve

   •duringnormaloperationthevalveisopenandthepressurizedfuelowstothenozzlewhereitis

   atomized,mixedwithprimarycombustionairandignitedbytheelectrodespark

   •duringabnormaloperation(seeparagraph2.)theamecontrolunitclosesthefuelsolenoidvalveand

the unit stops.

 •fuelcircuit,includingsuctionandreturnhosesfromfueltanktofuelpumpandhighpressuremicrohosefromfuel

pumptonozzle

 •burnerhead

 •nozzle

COMBUSTION CHAMBER

For indirect heater it consists of:

 •theinternalcombustionchamber(stainlesssteel)thatcontainingtheamesand

 •theexternalhighefcientheatexchanger(aluminatedsteel),thatleadssmoketochimney/stack.

Fordirectheateritconsistsoftheinternalcombustionchamber(stainlesssteel),thatcontainingtheamesand

exchangesheatwiththemainairowstream.

BURNER HEAD

Theburnerheadistheassemblythatdeterminesthecorrectmixingofcombustionairandfuelinsidethecombustion

chamberanditconsistsof:

 •Fuelnozzle

 •Nozzlesupport

 •Flamediffuser

 •Airopeningbafe:ascrewttedontheburnerheadallowstheadjustmentofcombustionairsetting

 •Ignitionelectrodes

 •Flamedetector

FAN - MOTOR ASSEMBLY

Theelectricmotordrivesthefuelpumpassemblyandafanwhichblowsairinsideandaroundcombustionchamber.

2. FLAME CONTROL RUNNING / FAILURE CYCLE

Theamecontrolunitstartsthesequenceofoperationafteraheatingrequest(normaloperationorthermostatoperation)

and it consists of the following steps:

•Self-test(lessthan3s):self-checkofelectronicsefciency;

•PurgingtimeTP(20seconds):fanmotorandignitiontransformeraresimultaneouslyswitchedonwhilethefuelvalve

remainsclosedtoeliminateanyfuelorunburntresidual.

Duringthepurgingstage,theamesignalisconstantlymonitoredforanykindoffailureleadingtocombustionprevents

theburnerignition.

Incaseofheatingrequestoff(roomthermostatoff),thecontrolunitgoestostand-byposition.Thedeviceremainsin

thisstatustillclosingoftheroomthermostat;

•Safetytime(5seconds):attheendofthepurgingtimeTP,thefuelvalveisswitchedonandopensthefueltothe

nozzle.

IncaseofamedetectionfailurebytheendoftheTSsafetytime,thecontrolunitgoestolockout,andthefanmotor,

theignitiontransformerandthefuelvalvearede-energized,whilethelockoutsignalisenabled.

Otherwise,attheendoftheTSsafetytimethecontrolunitdisablestheignitiontransformerandgoestorunning

position.

•AttheendoftheTSsafetytimethecontrolunitkeepstheignitiontransformeroperatingforabout30s.

2.1 STARTING CYCLE

2.2 SHUT OFF CYCLE

Whentheheatingrequest(normaloperationorthermostatoff)opens:

•fuelvalveandignitiontransformerareswitchedoffandtheamelightsoff;

•burnerfanoperatesa90spost-purgeventilation

Restoringtheheatingrequestcausesthepost-purgetobeinterruptedandthestartingcycletobeperformed.

Room thermostat

Reset Lamp

Photocell

Fuel Valve

Ignition Transformer

Burner Fan

90 s

Room thermostat

Reset Lamp

Photocell

Fuel Valve

Ignition Transformer

Burner Fan

TP 20 s TS 5 s

30 s

2.3 FLAME FAILURE DURING STARTING CYCLE

IfduringthesafetytimeTS,thephotocellmonitorsaamefailure(signaltophotocellbecomeslowerthanminimum),at

theendofsafetytimetheunitgoesinlockoutcondition:

•burnerfan,ignitiontransformerandfuelvalvearede-energized;

•alarmlamponrestbuttonbecomesred

Unitcanre-startonlyifpressingtheresetbutton

2.4 EXTRANEOUS LIGHT OR FLAME DURING PRE-PURGE TIME TP

Ifduringthepre-purgetimethephotocellmonitorsanyresidualamethentheunitgoesinstand-bycondition:

•burnerfangoesontopurgingcombustionchamber

•fuelvalveandignitiontransformerarede-energized

•resetlampisoff;

Room thermostat

Reset Lamp

Photocell

Fuel Valve

Ignition Transformer

Burner Fan

TP 20 s

Room thermostat

Reset Lamp

Photocell

Fuel Valve

Ignition Transformer

Burner Fan

TP 20 s TS 5 s

2.5 FLAME FAILURE DURING RUNNING STATUS (ONE TRIAL RECYCLING)

Incaseofamefailureinrunningstatus,theamecontrolunitmakeonetrialrestartingtheunit.

Ifthereasonofamefailureisconrmed,thentheunitstopsinlock-outmode,andtheresetlampbecomesred.

2.6 RESET LAMP COLOR

WARNING

Theresetbuttonmayhavedifferentcolours:

•  lightoff:unitisinstand-bystatus,waitingforheatingrequest.

•  steadyorangelight:functionnotactive

•  steadygreenlight:unitisworkingnormally(startingcycleorworkingcycle)

•  steadyredlight:theheaterstopspermanentlyinlock-outstatusandcanrestartonlyifresetbuttonis 

pressed.

Room thermostat

Reset Lamp

Photocell

Fuel Valve

Ignition Transformer

Burner Fan

TP 20 s TS 5 s

90 s

3. MAINTENANCE SCHEDULE

Periodicmaintenanceoftheheaterisnecessarytoensureproperperformanceandtopreventfailuresanditshallbe

performedatthefollowingperiodicintervals:

• Daily maintenance

i.Inspectairinlet/airoutletandexhauststack,removedebrisifany

ii.Ifanyairhoseisinstalled,secureit.Minimizebendsandkeepsductsstraight

iii.Verifyfueltankisfull

iv.Verifythatexhauststackisproperlyinstalled

• Weekly maintenance

  i.Disassemble,inspectandcleanfuellterwithcleanfuel

  ii.Removetopcoverandcleanthemotor,fanbladeandtheinteriorshell

  iii.Inspectthefuelhoseassemblyandcheckforanyleaks

• 6 months maintenance

  i.Disassembleburnerhead

   1.Inspectandcleanburnerdiffuser

   2.Inspectandreplacenozzleasnecessary

   3.Cleanignitionelectrodesandadjustsettings

   4.Checkaircombustionsetting

  ii.Checkoverheatthermostat

  iii.Inspectandcleanthecombustionchamber

  iv.Openelectricboard,inspectelectricalcomponentsandcheckconnections

  v.Checkfuelpressuresettingoffuelpump

  vi.Inspectandtesttheburner

4. REPAIR PROCEDURES

WARNING

Before carrying out any maintenance operation the heater must be disconnected from power supply.

Refer to instruction manual to fully stop the heater. Therefore:

• Stop the machine as instructed

• Turn off the on/off switch on the main electric switchboard

• Wait until the heater has cooled.

Never service heater while it is plugged in, operating or hot.

Severe burns or electrical shock can occur.

1) FAN MOTOR ASSEMBLY

a) Tocleanthefanbladesandmotor,carryoutthefollowingprocedure.

 i)Removetheairinletgrille(a)byremovingfourscrewsthatsecureittothemachine.

 ii)Removethetopcoveraccesspanel(b)byremovingscrews

 iii)Inspectand,ifnecessary,cleanthemotorusingcompressedair,beingcarefullynottodirecttheairjettothe

  airpressureswitchgauge(c)(thepressureswitchcouldbedamaged)

iv)Cleanthefanbladesusingastiffbrush.

v)Reinstalltheinternalaccesspanel.

vi)Reinstallthefangrille.

b)Toreplacethefanbladeandtheelectricmotor,carryoutthefollowingprocedure.

 i)Removetheairinletgrille(a)byremovingfourscrewsthatsecureittothemachine.

 ii)Loosenthescrew(d)onthefanhub

iii)Extractthefanbladesandreplacewithanewonerespectingbladesorientation

iv)Removethetopcoveraccesspanel(b)byremovingfourscrews

v)Loosenthreeallenscrews(e)onthefuelpumpcasing(besurenottoremovethescrews)

vi)Removefuelpumpfromelectricmotorandkeepplasticcouplingfornextreassembly

vii)Loosenandremoveeightscrews(f)thatxthemotoronthemotorange

viii)Openmainelectricboardonside/frontoftheheater

ix)Tracetheelectricmotorpowercordsanddisconnectthethreewires(white,black,green)fromcontrolpanel

x)Positionanewmotoronthemotorangeandreassembleeightscrews(f)toxit

xi)Checkalignmentofthemotortotheheateraxisandtighteneightscrews(f)onmotorange

xii)Reassemblefuelpumponelectricmotorbeingsurethatplasticcouplingisaligned

xiii)Tightenthreeallenscrews(e)

xiv)Positionfanbladeonthemotorshaftbeingsurethereisnointerferencewithanypartswhenrotating

xv)Tightenscrew(d)andcheckfreerotationofthefanblades

xvi)Reinstallthefangrilleandthetopcover.

2) FUEL FILTER ASSEMBLY

a) Toclean/replacethepre-heatedtypefuellter,carryoutthefollowingprocedure.

 i)Removethescrew(a)thatsecuresthecovertothehousingandremoveo-ring(b)

ii)Usingasuitablecontainer,collectthefuelwhenremovingfromthefuellterassembly

iii)Removethefuelcell(c)andwashitwithcleandieseloil

iv)Ifnecessaryreplacethefuellter(c)

v)Ifnecessarytoreplacetheheatingelement,loosenthenut(d)andremovetheelectricelement(e)

vi)Inspecttheo-ring,replaceitifitiscracked,damaged,ordeformed

vii)Reassemblethelterassemblycheckingtheo-ringisplacedintherightposition

viii)Tightenscrew(a)

b)Toclean/replacethestandardtypefuellter,carryoutthefollowingprocedure.

i) Loosen the casing (a) that secures to the housing

ii)Usingasuitablecontainer,collectthefuelwhenremovingfromthefuellterassembly

iii)Removefuelcell(c)ando-ring(b)andwashwithcleandieseloil

iv)Ifnecessaryreplacethefuelcell(c)

v)Inspecttheo-ring,replaceitifitiscracked,damaged,ordeformed

vi)Reassemblethelterassemblycheckingtheo-ringisplacedintherightposition

vii)Tightencasing(a)byhand,checkingtheo-ringispressed

3) FUEL PUMP ASSEMBLY

a) Toreplacefuelpump,carryoutthefollowingprocedure.

i)Removethetopcoveraccesspanel(b)byremovingsixscrews

ii)Loosenthreescrews(e)onthefuelpumpcasing(besurenottoremovethescrews)

iii)Removefuelpumpfromelectricmotorandkeepplasticcouplingfornextreassembly

iv)Disconnectwiresleadtofuelsolenoidvalve(g)

v)Reassemblenewfuelpumponelectricmotorbeingsurethatplasticcouplingisaligned

vi)Tightenthreescrews(e)

vii)Reinstallthetopcover.

b)Tosetfuelpressureonfuelpump,carryoutthefollowingprocedure.

i)Removethetopcoveraccesspanel(b)byremovingscrews

ii) Loosen cap (a) on front of fuel pump and connect a fuel pressure meter

iii)Disconnectwiresleadingtofuelsolenoidvalve(toavoidfuelsprayinsidecombustionchamber)

WARNING

The following operation shall be done with top cover and possible access to rotating fan.

Fan rotating area is covered by fan support even if accessible

Take measure to avoid touching any rotating parts while setting fuel pressure

iv)Starttheheaterandcheckthefuelpressurevaluelistedinthenaltechnicalsheet

v)Correctthepressurebyscrewing(toincreasepressure)orunscrewing(todecreasepressure)screw(b)

vi)Removefuelpressuremeterandtightencap(a)

vii)Connectwirestosolenoidfuelvalve

viii)Reinstallthetopcover.

4) ELECTRIC PANEL ASSEMBLY

a) Tocheckelectriccontrolboard,carryoutthefollowingprocedure.

 i)Removetwoscrews(a)onfront/sideofheater

 ii)Removetopcover(b)ofelectricboard

5) AIR PRESSURE SWITCH

iii)Checkthatallconnectionsarecompleteandtight

iv)Reassembletopcover(b)andxelectricboardtotheheater

a) Tocheck/replaceairpressureswitch,carryoutthefollowingprocedure.

 i)Removefourscrews(a)onsideofheater

ii)Pullairpressureswitchassemblyoutofthebase

iii)Checksiliconetubearenotpinchedandtightenedtoconnectors

iv)Checkthereisnodebrisinsidesilicontube

v)Reassemblepressureswitchassemblyandtightenscrews(a)

6) COMBUSTION HEAD ASSEMBLY

a) Tocleancombustionheadassembly,carryoutthefollowingprocedure.

 i)Removethetopcoveraccesspanel(b)byremovingsixscrews

ii)Loosenscrew(a)andremovewireconnectorofyellow/greenwire)(c)

iii)Turncounterclockwiseburnersupport(d)andpullitoutofburnertube(e)

iv)Check/Cleandiffuserring(f)

 (1)besureanydebrisorsootiseliminatedoneverywingandopeningonfrontsurfaceofring

 (2)ifnecessaryloosenscrew(f)andremoveittowashusingcleandiesel

 (3)checkforanydamageorbendedpart:ifanyreplaceit

v)Check/cleanignitionelectrodes(g)

 (1)Cleanandremoveanydebrisorsootonsharpendsofelectrodes

 (2)Ifnecessaryremovebothelectrodesandreplace

 (3)Checkalignmentasbyfollowingimage:electrodesshallbecenteredandsymmetric

(4)Checkelectrodeconnectors(h)totightenandclean

vi)Check/replacefuelnozzle

 (1)Refertotechnicaldatasheetforspecicindicationofnozzletype

 (2)Removeelectrodes(g)

 (3)Removediffuserring(f)

 (4)Loosenfuelnozzleandreplacewithanewone

 (5)Reassemblediffuserringandelectrodestakingcareofeachcorrectpositioningasprevious 

instructions

vii)Check/cleanphotocell

 (1)Removephotocell(i)andcheckitisclean

 (2)Checkphotocellsupportbecleanandcleanhole(m)

viii)Check/adjustairopenings

(1) Loosen nut (n)

 (2)Adjustlever(p)untiltherequestedopeningisobtained(checknaltech.sheet)

ix)Reassemblecombustionhead

x)Reassembletopcover

7) COMBUSTION CHAMBER ASSEMBLY

a) Tocleancombustionchamberassembly,carryoutthefollowingprocedure.

 i)Removethetopcoveraccesspanel(b)byremovingsixscrews

ii)Loosenandremovethreenuts(a)

iii)Removetheburnerheadtubeassembly(c)

iv)Checkandcleaninsidecombustionchamberwithacloth,removingliquidfuelresidual

v)Reassembleburnerheadtubeassembly(c)

vi)Reassembletopcover(b)

5. TROUBLESHOOTING GUIDE

A. HEATER DOES NOT START

a. Main control lamp is off

  i.Missingconnectiontomainsupplyline

   1.Checkmainsupplyisswitchedon

   2.Checkconnectionofextensionpowercord

   3.Checkintegrityofmainfuse

b. Motor does not run and reset lamp is red

i.Flamecontrolboxinlockingconditionforapreviousproblem

   1.Resetandrepeatthestartingcycleonetimeonly.

   2.Refertofollowingifanynewproblemoccurs

c. Motor does not run and rest lamp lights up after 30 secs

i.Airowfailure

   1.Checkfanmotorconnections

   2.Checkfanistightenedonfanmotoraxle

   3.Checkfanisfreetorotate:ifnot,servicefuelpump

   4.Checkandeventuallyreplacefanmotorand/ormotorcapacitor.

d. Motor does not run and reset lamp is off (unit is in stand-by)

i. Room thermostat / main switch failure

   1.Checkroomthermostat

   2.Checkroomthermostatconnections

   3.Checkmainswitchonheatercontrolboard

ii. Photocell failure (short circuit)

1. Replace photocell

  iii.Flamecontrolboxfailure

   1.Checkfuseintegrityonamecontrolbox

   2.Checkwiringconnectionandeventuallyreplaceamecontrolbox

  iv.Voltagelowerthan70Vorhigherthan150V

   1.Checksupplyvoltageiscorrespondenttoratingplate.

   2.Unitwillautomaticallyrestartwhenvoltagebecomeshigherthan80Vorlowerthan140V

B. HEATER STARTS BUT DOES NOT COMPLETE STARTING CYCLE

a. Motor runs continuously, there are no ame and reset lamp is off

i.Extraneouslightorameduringpre-purgecycle

   1.Checkpositioningofphotocell

   2.Makeserviceofcombustionheadandcombustionchamberremovinganyresidualfuelinside

   3.Checkanysunlightorexternallightcanreachthephotocell

b. Heater stops in lock-out and reset lamp is on (red light)

i.Flamefailureduringstartingcyclebecauseofincorrectignition

   1.Checkconnectiontoignitionelectrode

   2.Check,cleanandadjustpositioningofignitionelectrode

   3.Checkignitiontransformerandeventuallyreplace

   4.Checkmainconnectionstoignitiontransformer

  ii.Flamefailureduringstartingcyclebecauseofmissing/incorrectame

   1.Checkfueltankisnotempty

   2.Checkfueltypebecorrectandclean

   3.Checkandcleanfuelltercartridge

   4.Checkallconnectionsoffuellinefromtanktofuelpump:untightenedconnectionscancause

suction of air to fuel pump

   5.Checkfuelline(fromto/thefueltankandtothenozzle)arenotobstructedordamagedand

   eventuallyreplace

   6.Checkandcleanfuelnozzle(eventuallyreplaceit)

   7.Checkandcleancombustionhead(nozzle,nozzlesupportanddiffuserdisc)

   8.Checkandeventuallyreplacesolenoidvalveonfuelpump

   9.Checkadjustmentoffuelpumppressure

  10.Checkadjustmentofcombustionair

C. HEATER STARTS BUT IT DOES NOT RUN REGULARLY

a. Heater stops in lock-out and reset lamp is on (red light)

i.Flamefailurebecauseofmissingfuel

   1.Checkfueltankisnotempty

   2.Checkfueltypebecorrect,cleanandwithoutwater

   3.Checkandcleanfuelltercartridge

   4.Checkallconnectionsoffuellinefromtanktofuelpump:untightenedconnectionscancause

suction of air to fuel pump

   5.Checkfuellinearenotobstructedordamagedandeventuallyreplace

   6.Checkadjustmentoffuelpumppressure

ii.Flamefailurebecauseofbadcombustion

   1.Checkandcleanfuelnozzle(eventuallyreplaceit)

   2.Checkandcleancombustionhead(nozzle,nozzlesupportanddiffuserdisc)

   3.Checkadjustmentoffuelpumppressure

   4.Checkadjustmentofcombustionair

  iii.FlamefailurebecauseofairpressureswitchPAnotworking.

   1.Checkfanistightenedonfanmotorshaft.

   2.Checkthereisnoobjectobstructingairinlet

   3.Checkhosetoairpressureswitcharenoobstructed

   4.Checkconnectionstoelectricalwiringsofairpressureswitch

   5.Checkandeventuallyreplaceairpressureswitch

  iv.FlamefailurebecauseofsafetythermostatLIcuttingin

   1.Checkthereisnoobjectobstructingairoutlet

   2.Checkairoutlethoserespectmaximumlengthanddiameterasspecied

   3.Checkconnectionstoelectricalwiringsofoverheatingthermostat

   4.Checkandeventuallyreplacesafetythermostat

b. Heater stops in stand-by and reset lamp is off

i. Voltage lower than 70 V or higher than 150 V

   1.Checksupplyvoltageiscorrespondenttoratingplate.

   2.Unitwillautomaticallyrestartwhenvoltagebecomeshigherthan80Vorlowerthan140V.

c. Heater starts and stops ames and main fan remains on (unit is in stand-by and rest lamp is off)

  i.Airbubblesinthesuctionlinetofuelpump

   1.Checkoilltercasingistightened

   2.Checkallconnectiononfuellinetofuelpumparetightened

   3.Checkfuellinearenotobstructed

   4.Checkfueltanklevel

D. HEATER RUNS WITH BAD COMBUSTION AND EVENTUALLY WITH WHITE OR BLACK SMOKES

a. Heater runs with white smokes

i.Fuel/airmixingoncombustionheadisincorrect:excessairorlittlefuel

   1.Checkadjustmentoffuelpumppressure

   2.Checkadjustmentofcombustionair

b. Heater runs with black smokes

i.Fuel/airmixingoncombustionheadisincorrect:littleairorexcessfuel

   1.Checkadjustmentoffuelpumppressure

   2.Checkadjustmentofcombustionair

c. Heater runs with noisy / irregular combustion with/without smokes

i.Combustionisincorrect

   1.Checkandcleanfuelnozzle(eventuallyreplaceit)

   2.Checkandcleancombustionhead(nozzle,nozzlesupportanddiffuserdisc)

   3.Checkexhaustisnotobstructed

   4.Checkcombustionchamberisnotcloggedbysootandeventuallywashandcleanit

E. WHEN HEATER IS SWITCHED OFF, IT DOES NOT STOP

a. Heater still runs with ame

i. Room thermostat / main switch failure

   1.Checkroomthermostatandroomthermostatconnections

   2.Checkmainswitchonheatercontrolboard

  ii.Fuelowtonozzleisnotinterrupted

   1.Checkfuelsolenoidvalveclosefuellinetonozzle

6. WIRING DIAGRAM

NOTE

AirpressureswitchPAandoverheatingthermostatLI1areconnectedinserietofuelvalveEV1.

ThereforeincasePAandLI1opens,thefuelvalveEV1isswitchedoffandtheamecontrolunitgoesinlock-outin

the“amefailuremode”.

FU Fuse 20 A

IT H.T. Transformer

LI1 Overheatthermostat

EV1 Fuelsolenoidvalve

FO Photocell

CO Capacitor

MV Fan motor

ST Control lamp

RV Main switch

TA Room thermostat plug

AP Flamecontrolbox

RF Heatedfuellter(optional)

PA Air pressure switch

FUA Fuse6,3A

RE RELAY

FU FUSE 20 A

HS2000ID, HS3000ID, HS3500DF

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Enerco Heatstar HS2000ID User manual

Brand: Enerco

Model: Heatstar HS2000ID

Type: User manual

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Enerco Heatstar HS2000ID User manual

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