User Guide

ONE-YEAR LIMITED WARRANTY
TheSellerwarrantsitsproductsagainstdefectsinmaterialorworkmanshipforaperiodofone(1)year
fromthedateofmanufacture.TheliabilityoftheSellerislimited,atitsoption,torepair,replaceorissuea
non-casecreditforthepurchasepricesofthegoodswhichareprovidedtobedefective.Thewarrantyand
remediessetforthhereindonotapplytoanygoodsorpartsthereofwhichhavebeensubjectedtomisuse
includinganyuseorapplicationinviolationoftheSeller’sinstructions,neglect,tampering,improperstorage,
incorrectinstallationorservicingnotperformedbytheSeller.InordertopermittheSellertoproperly
administerthewarranty,theBuyershall:1)NotifytheSellerpromptlyofanyclaim,submittingdatecode
informationoranyotherpertinentdataasrequestedbytheSeller.2)PermittheSellertoinspectandtest
theproductclaimedtobedefective.ItemsclaimedtobedefectiveandaredeterminedbySellertobenon-
defectivearesubjecttoa$30.00perhourinspectionfee.ThiswarrantyconstitutestheSeller’ssoleliability
hereunderandisinlieuofanyotherwarrantyexpressed,impliedorstatutory.Unlessotherwisestated
inwriting,Sellermakesnowarrantythatthegoodsdepictedordescribedhereinaretforanyparticular
purpose.
LIAF067
Patent No. 424,953
7313 William Barry Blvd., North Syracuse, NY 13212
(Toll Free) 800-365-5525 (Phone) 315-233-5266 (Fax) 315-233-5276
www.icmcontrols.com
ICM283 Cross Reference Chart
Model Numbers
ICM283
Local (L)
or
Remote (R)
Sensing
Lockout
Time
(sec)
Ignition
Trials
Pre
Purge
(sec)
Igniter
Warm
Up
(sec)
Between
Trial
Purge
(sec)
Dip
Switch
Settings
Remove
Black
jumper
ICM283
Specications
A
–
Local or
Remote
4
1
32 34
NA
B 3 96
C
7
1 NA
D 3 96
50E47-1thru9 A Yes R 4 1 0 17 NA
50E47-10thru19 A Yes R 4 1 0 45 NA
50E47-20thru29 A Yes R 4 1 30 17 NA
50E47-30thru39 A Yes R 4 1 30 45 NA
50E47-40thru49 B Yes R 4 3 30 17 90
50E47-50thru59 B Yes R 4 3 30 45 90
50E47-60thru69 B Yes R 4 3 0 17 60
50E47-70thru79 B Yes R 4 3 0 45 60
50E47-101thru109 C Yes R 7 1 0 17 NA
50E47-110thru119 C Yes R 7 1 0 45 NA
50E47-120thru129 C Yes R 7 1 30 17 NA
50E47-130thru139 C Yes R 7 1 30 45 NA
50E47-140thru149 D Yes R 7 3 30 17 90
50E47-150thru159 D Yes R 7 3 30 45 90
50E47-160thru169 D Yes R 7 3 0 17 60
50E47-170thru179 D Yes R 7 3 0 45 60
50E47-201thru209 A Yes R 4 1 0 17 NA
50E47-210thru219 A Yes R 4 1 0 45 NA
50E47-220thru229 A Yes R 4 1 30 17 NA
50E47-230thru239 A Yes R 4 1 30 45 NA
50E47-240thru249 B Yes R 4 3 30 17 90
50E47-250thru259 B Yes R 4 3 30 45 90
50E47-260thru269 B Yes R 4 3 0 17 60
50E47-270thru279 B Yes R 4 3 0 45 60
50E47-301thru309 C Yes R 7 1 0 17 NA
50E47-310thru319 C Yes R 7 1 0 45 NA
50E47-320thru329 C Yes R 7 1 30 17 NA
50E47-330thru339 C Yes R 7 1 30 45 NA
50E47-340thru349 D Yes R 7 3 30 17 90
50E47-350thru359 D Yes R 7 3 30 45 90
50E47-360thru369 D Yes R 7 3 0 17 60
50E47-370thru379 D Yes R 7 3 0 45 60
50F47-1thru9 A Yes R 4 1 0 17 NA
50F47-10thru19 A Yes R 4 1 0 45 NA
50F47-20thru29 A Yes R 4 1 17 17 NA
50F47-30thru39 A Yes R 4 1 17 45 NA
50F47-40thru49 B Yes R 4 3 17 17 77
50F47-50thru59 B Yes R 4 3 17 45 77
50F47-60thru69 B Yes R 4 3 0 17
60
50F47-70thru79 B Yes R 4 3 0 45 60
50F47-101thru109 C Yes R 7 1 0 17 NA
50F47-110thru119 C Yes R 7 1 0 45 NA
50F47-120thru129 C Yes R 7 1 17 17 NA
50F47-130thru139 C Yes R 7 1 17 45 NA
50F47-140thru149 D Yes R 7 3 17 17 77
50F47-150thru159 D Yes R 7 3 17 45 77
50F47-160thru169 D Yes R 7 3 0 17 60
50F47-170thru179 D Yes R 7 3 0 45 60
50F47-201thru209 A Yes R 4 1 0 17 NA
50F47-210thru219 A Yes R 4 1 0 45 NA
50F47-220thru229 A Yes R 4 1 17 17 NA
50F47-230thru239 A Yes R 4 1 17 45 NA
50F47-240thru249 B Yes R 4 3 17 17 77
50F47-250thru259 B Yes R 4 3 17 45 77
50F47-260thru269 B Yes R 4 3 0 17 60
50F47-270thru279 B Yes R 4 3 0 45 60
50F47-301thru309 C Yes R 7 1 0 17 NA
50F47-310thru319 C Yes R 7 1 0 45 NA
50F47-320thru329 C Yes R 7 1 17 17 NA
50F47-330thru339 C Yes R 7 1 17 45 NA
50F47-340thru349 D Yes R 7 3 17 17 77
50F47-350thru359 D Yes R 7 3 17 45 77
50F47-360thru369 D Yes R 7 3 0 17 60
50F47-370thru379 D Yes R 7 3 0 45 60
HS780-17NL-104A A No L 4 1 0 17 NA
ICM283 Cross Reference Chart (continued)
Model Numbers
ICM283
Local (L)
or
Remote (R)
Sensing
Lockout
Time
(sec)
Ignition
Trials
Pre
Purge
(sec)
Igniter
Warm
Up
(sec)
Between
Trial
Purge
(sec)
Dip
Switch
Settings
Remove
Black
jumper
ICM283
Specications
A
–
Local or
Remote
4
1
32 34
NA
B 3 96
C
7
1 NA
D 3 96
HS780-17NL-108A C No L 8* 1 0 17 NA
HS780-17NL-304A B No L 4 3 0 17 17
HS780-17NL-308A D No L 8* 3 0 17 17
HS780-17NR-104A A Yes R 4 1 0 17 NA
HS780-17NR-306* D Yes R 6* 3 0 17 17
HS780-17NR-308A D Yes R 8* 3 0 17 17
HS780-34NL-108A C No L 8* 1 0 34 NA
HS780-34NL-304A B No L 4 3 0 34 34
HS780-34NL-306* D No L 6* 3 0 34 34
HS780-34NL-308A D No L 8* 3 0 34 34
HS780-34NL-312A D No L 12** 3 0 34 34
HS780-34NR-104A A Yes R 4 1 0 34 NA
HS780-34NR-306* D Yes R 6* 3 0 34 34
HS780-34NR-308A D Yes R 8* 3 0 34 34
HS780-34NR-312A D Yes R 12** 3 0 34 34
HS780-34PL-308A D No L 8* 3 34 34 34
S89C1004 C No L 6* 1 0 34 NA
S89C1012 C No L 6* 1 0 34 NA
S89C1046 A No L 4 1 0 34 NA
S89C1087 C No L 6* 1 0 34 NA
S89C1103 A No L 4 1 0 34 NA
S89D1002 C Yes R 6* 1 0 34 NA
S89G1005 B No L 4 3 0 34 30
S89G1013 D No L 6* 3 0 34 30
S89G1021 D No L 11** 3 0 34 30
S89G1047 D No L 6* 3 0 34 30
S89H1003 B Yes R 4 3 0 34 30
S89H1011 D Yes R 6* 3 0 34 30
S89H1029 D Yes R 11** 3 0 34 30
S89J1008 C No L 6* 1 0 34 NA
S890C1007 C No L 6* 1 30 34 NA
S890D1006 C Yes R 6* 1 30 34 NA
S890G1003 B No L 4 3 30 34 30
S890G1011 D No L 6* 3 30 34 30
S890G1029 D No L 11** 3 30 34 30
S890G1037 D No L 6* 3 30 34 30
S890H1002 B Yes R 4 3 30 34 30
S890H1010 D Yes R 6* 3 30 34 30
S890H1028 D Yes R 11** 3 30 34
30
Notes: * The ICM283 and the original control lockout times are different. The ICM283 lockout time is within
the design tolerance lockout time of the original control.
 ** The lockout time of the ICM283 is shorter than the original control. Be sure to observe the appliance
operation under a variety of input conditions to assure reliable operation.
STEP 1:Checktheigniterwireharness.Makesure:
a. Ignitioncabledoesnotcontactwithanymetalsurfaces.
b. Connectionstotheignitionmoduleandtotheigniterorigniter-sensorarecleanandtight.
c. Ignitioncableprovidesgoodelectricalcontinuity.
STEP 2:Checktheignitionsystemgrounding.Nuisanceshutdownsareoftencausedbyapooror
erraticground.
a. Acommongroundisrequiredforthemodule,igniter,amesensorandmainburner.•Checkfor
goodmetal-to-metalcontactbetweentheigniterbracketandthemainburner.
• CheckthegroundpathfromtheGND(BURNER)terminalonthemoduletothemainburner.
Makesuretheconnectionsarecleanandtight.Ifthewireisdamagedordeteriorated,replace
itbyfollowingtheappliancemanufacturerinstructions.Atemporaryleadwireconnection
betweentheGND(BURNER)terminalandthemainburnercanhelpconrmagroundpath
problem.
• Checkthetemperatureattheigniterceramicoramesensorinsulator.Excessivetemperature
permitsleakagetoground.Contacttheappliancemanufacturerifthetemperatureexceeds
theratingoftheigniterorsensor.
• Iftheamesensororbracketisbentoutofposition,restoretothecorrectposition
• Replacetheigniterandsensororignitersensorwithanidenticalunitiftheinsulatoriscracked
STEP 3:Checktheamesensingcircuit.
a.Makesuretheburnerameiscapableofprovidingagoodrecticationsignal.
b.Makesureabout3/4to1in.oftheamesensororigniter-sensoriscontinuouslyimmersedin
theameforthebestamesignal.
c.Checkforexcessive(higherthan1000°F[538°C])temperatureattheceramicinsulatoronthe
amesensor.Excessivetemperaturecancauseashorttoground.
d.Checkforacrackedigniter-sensororasensorceramicinsulator,whichcancauseshortto
ground,andreplaceunitifnecessary.
• Makesuretheelectricalconnectionsarecleanandtight.Replacedamagedwirewith
moisture-resistantNo.18wireratedforcontinuousdutyupto221°F(105°C)
e. IftheigniterisotherthanaNorton201or271,makesureitmeetsthefollowingspecications:
• Ignitermustreach1832°F(1000°C)within34-secondswith102VACapplied
• Ignitermustmaintainatleast500Mohminsulationresistancebetweentheigniterleadwires
andtheignitermountingbracket
• Ignitermustnotdevelopaninsulatinglayeronitssurface(overtime)thatwouldpreventame
sensing
• Ignitersurfaceareaimmersedinamemustnotexceedone-fourthofthegroundedarea
immersediname.Thiswouldpreventamesensing
• Ignitercurrentdrawat130VACmustnotexceed5A
Ignition System Checks
Troubleshooting
ThestatusLEDcanbeusedtoassistwithtroubleshooting.TheLEDshowssystemstatusforthe
currentcallforheatonly.Whenthecallforheatisinterrupted(thermostatsatisedorsystempower
switchedoff),theLEDgoesoffandthestatusinformationislost.
• PulsingisthenormalconditionofthestatusLEDduringacallforheat(24Vterminalispowered).
Thesystemcanbeinanyofthenormaloperatingmodesincludingprepurge,warmup,ignitiontrial,
betweentrialpurge,ornormalrun.
• OneashindicatestheICM283isinanignitionlockoutmode.Thecauseofthisisusuallythe
burnernotlightingornoamedetected.Initiateacallforheatandiftheburnerdoesnotlight,check
the:
 –Gassupply
 –Inputvoltage
 –Hotsurfaceigniter
 –Gasvalve
 –Wiring
• Ifthemainburnerlights,butgoesoutattheendofignitiontrial,checkthe:
 –Igniter/sensor
 –Flamerod
 –Burnergroundconnections
 –Wiring
• Twoashesindicatetheamerecticationsignalisweak.Themostlikelycausesare:
 –Contaminatedorincorrectlylocatedigniter/sensororamerod
 –Pooramesenseleadwireinsulationorconnections
 –Poorgaspressure
Iftheamerecticationsignalisstrongwhentheappliancelights,butweakwhileheatisbeing
delivered,checkforoverheatingoftheigniter/sensor,amerodceramicoramesenseleadwires.
• Threeashesindicateaninternalerror.ThemostprobablecauseisanICM283processorfailure.
Startanewcallforheatandifthethree-ashsignalreturns,replacetheICM283.
Aftertroubleshooting,performthecheckoutprocedureagaintobesurethesystemisoperating
normally.
Gas Leak Test
Coatthegascontrolgasketedgesandallthepipeconnectionsupstreamofthegascontrolwitha
soapandwatersolution.Bubblesindicategasleaks.Tightenthejointsandscrewsorreplacethe
componenttostopagasleak.Repairleakandrecheckwithsoapandwatersolution.
Mode of Operation
TheICM283providesoneorthreetrialsforignition,dependingonwhichdipswitchpositionsare
selected.Oncetheinducerfanairowisestablished,theairprovingswitchclosesandthecycle
begins.
TheICM283initiatesa32-seconddelaytoallowsystemprepurge.Afterprepurge,theICM283
energizestheignitertostarttheigniterwarmup.Themoduleenergizesthehotsurfaceigniterfor
a34-secondwarmupperiodandthegasvalveremainsclosed.Attheendofthewarmupperiod,
thegasvalveopensfortheignitiontrialtimedeterminedbythedipswitch.Thehotsurfaceigniter
stayspoweredforanignitionactivationperiodofonesecond(ifthefour-secondtrialtimeisused)or
fourseconds(iftheseven-secondtrialtimeisused).Theigniterturnsoffaftertheignitionactivation
period.Neartheendoftheignitiontrialtime,theamesensingcircuitdeterminesifthemainburner
islit.Ifameisrecognized,thegasvalveremainsopenandtheburnerruncyclebegins.Whenthe
mainburnerislit,aamerecticationcircuitiscompletedbetweentheamesensor(igniteronlocal
sensesystemsoramerodonremotesensesystems)andthemainburner(burnerground).
TheICM283amesensingcircuitdetectstheamecurrentandkeepsopenthegasvalve.The
mainameismonitoredcontinuouslyduringthecallforheat.Ifameisnotsensedbytheendof
thetimedtrialforignition,thegasvalveclosesandthemodulelocksout.Itmustbemanuallyreset
byremovingpowerorsettingthethermostatbelowtheroomtemperatureforatleast30seconds.If
theburnerlightsandameisprovedbutgoesoutduringtheruncycle,thegasvalveclosesandthe
moduleinitiatesawarmupperiodfollowedbyonetrialforignition.Ifameisnotestablished,thegas
controlclosesandthemodulelocksout,requiringmanualreset.Ifameisnotsensedbytheend
ofthersttimedtrialforignition,thegasvalveclosesandthemoduleinitiatesasecond96seconds
betweentrialpurgecycle,followedbyigniterwarmupandasecondtrialforignition.Ifameisnot
established,thebetweentrialpurge,warmup,trialforignitioncycleisrepeatedathirdtime.Ifame
isstillnotestablishedfollowingthethirdtrial,thegasvalveclosesandthemodulelocksout.Itmust
bemanuallyresetbyremovingpowerorsettingthethermostatbelowtheroomtemperatureforat
least30seconds.Iftheburnergoesoutduringtheruncycle,thegasvalveclosesandthemodule
checksforthenumberofignitiontrialsperformedduringthecurrentcallforheat.Ifthenumberisless
thanthree,themoduleinitiatesabetweentrialpurge,warmupandtrialforignition.Afterthethirdtrial
duringasinglecallforheat,themodulelocksout.Themodulemustbemanuallyresetfollowingthe
lockout.
Start Up – Operation – Safety Check
1. Visual inspection
a. Withpoweroff,makesureallwiringconnectionsarecleanandtight.
b. TurnonthepowertotheapplianceandtheICM283.
c. Openthemanualshutoffvalvesinthegaslinetotheappliance.
d. Testforagasleakupstreamofthegascontrolifpipinghasbeendisturbed.See“GasLeak
Test”above.
2. Check safety lockout operation
a. Turnthethermostatorcontrollertothelowestsetting.
b. Turnonthesystempower.
c. Waitoneminute.
d. Turnoffthegassupply.
e. Setthethermostatorcontrollerabovetheroomtemperaturetocallforheat.
f. Watchforigniterwarmupfollowingprepurge.Igniterstartstoglowseveralsecondsafteritis
powered.
g. DeterminethelengthoftimethegascontrolisenergizedbyconnectinganACvoltmeteracross
thegasvalveterminals.
h. Whenusingathree-trialignitiondipswitchpositionwatchforthestartof96-secondbetween
trialpurge,followedby34-secondigniterwarmupandsecondtryforignition.Afterathird
purge,warmupandtrialforignitionsequence,theICM283shouldlockout.StatusIndicator
LEDwillashonetimewheninalockout.
i. Openthemanualgascontrolknobandmakesurenogasisowingtotheburner.
j. Setthethermostatbelowtheroomtemperatureandwaitoneminutebeforecontinuing.
3: Check normal operation
a. Setthethermostatorcontrollerabovetheroomtemperaturetocallforheat.
b. Observethesequenceandmakesurethemainburnerlightssmoothlywithoutashback.
c. Makesuretheburneroperatessmoothlywithoutoating,lifting,oramerollouttothefurnace
vestibuleorheatbuildupinthevestibule.
d. Testforagasleakdownstreamofthegascontrolifpipinghasbeendisturbed.See“GasLeak
Test”above.
e. Checktheburneramecondition.Theigniter-sensororsensormustbeconstantlyimmersedin
ame.Checktheburneramecondition.Donotrelocatethehotsurfaceigniteroramerod.
f. Turnthethermostatorcontrollerbelowtheroomtemperature.Makesurethemainburnerand
pilotamesgoout.
White-Rodger’sinformationwasobtainedfromthe1991White-Rodger’sProductCatalog(R3700).
Robertshawinformationwasobtainedfromthe1993-1994RobertshawUni-LineCatalog(2-064).