Ice-O-Matic UCG 45 Manual

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MODELS‐UCG45,UCG65,UCG85,UCG105,UCG135,UCG165
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InstallationandServiceManual
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Ice‐O‐Matic
11100E.45
th
Ave.
Denver,Colorado80239        PartNumber9081522‐02
1‐866‐PURE‐ICE         Revision01/21
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UCGGOURMETSERIESUNDERCOUNTER

UCGGOURMETSERIESUNDERCOUNTER
pg.2
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UCGGOURMETSERIESUNDERCOUNTER
pg.3
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GENERALINFORMATIONANDINSTALLATION
A. INTRODUCTION
Thismanualprovidesthespecificationsandthestep‐bystepproceduresfortheinstallation,startup,
operation,cleaning,andmaintenancefortheIce‐O‐MaticUCGUndercounterSeriesicemakers.To
retainthesafetyandperformancebuiltintothisicemaker, itisimportant thatinstallationand
maintenancebeconductedinthemanneroutlinedinthismanual.
Formoretechnicalinformation,refertowww.iceomatic.com.
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B. UNPACKINGANDINSPECTION
1. CallyourauthorizedIce‐O‐MaticDistributororDealerforproperinstallation.
2. Visuallyinspecttheexteriorofthepackagingandskid.Anyseveredamagenotedshouldbe
reportedtothedeliveringcarrier.
3. Cutandremovetheplasticstripsecuringthecartonboxtotheskid.Cutopenthetopofthe
carton andremove the protection sheet. Pullout thecorner posts,and thenremovethe
carton.
4. Removethefrontpaneloftheunit,andinspectforanyconcealeddamage.Notifythecarrier
ofanyconcealeddamage.
5. Checkthatrefrigerantlinesdonotrubagainstortouchotherlinesorsurfaces,andthefan
blademovesfreely.
6. Checkthatthecompressorfitssnuglyontoallitsmountingpads.
7. Removeallinternalsupportpackagingandmaskingtape.
8. Useaclean,dampclothtowipethesurfacesinsidethestoragebinandtheoutsideofthe
cabinet.
9. Seedataplateontherearsideoftheunitandcheckthatlocalmainvoltagecorrespondswith
thevoltagespecifiedonit.
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10. Registertheunitatwww.iceomatic.com/warranty.
11. Installandadjustlegsprovidedtoleveltheunit.
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C. LOCATIONANDLEVELING
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1. Positiontheunitintheselectedpermanentlocation.Criteriaforselectionoflocationinclude:
a. Minimum room temperature of 50˚F (10˚C) and maximum room temperature of
100˚F(40˚C).
CAUTION:Incorrectvoltagesuppliedtotheice
makerwillvoidyourpartsreplacementprogram.
WARNING:Thisicemakerisdesignedforindoorinstallationonly.
Extendedperiodsofoperationattemperaturesexceedingthefollowing
limitationswillconstitutemisuseunderthetermsoftheIce‐O‐Matic
Manufacturer’sLimitedWarranty,resultinginlossofwarrantycoverage.

UCGGOURMETSERIESUNDERCOUNTER
pg.4
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b. Minimum water inlet temperature of 40˚F (5˚C) and maximum waterinlet
temperatureof90˚F(35˚C).
c. Wellventilatedlocation.
d. Serviceaccess:adequatespacemustbeleftforallserviceconnectionsthroughthe
rearoftheicemaker.Aminimumclearanceof6”(15cm)mustbeleftatthesidesof
theunitforroutingairdrawnintoandexhaustedoutofthecompartmenttomaintain
propercondensingoperation.
2. Leveltheunitinboththelefttorightandfronttoreardirections.
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D. ELECTRICALCONNECTIONS
Seedataplateforcurrentrequirementstodeterminewiresizetobeusedforelectricalconnections.
AllIce‐O‐Maticicemakersrequireasolidearthwire.Theyaresuppliedfromthefactorycompletely
pre‐wiredandrequireonlyelectricalpowerconnectionstothewirecordprovidedattherearofthe
unit.Makesuretheicemakerisconnectedtoitsowncircuitandindividuallyfused(seedataplate
forfusesize).Themaximumallowablevoltagevariationshouldnotexceed‐10%and+10%ofthe
dataplaterating.Lowvoltagecancausefaultyfunctioningandmayberesponsibleforseriousdamage
totheoverloadswitchandmotorwindings.Checkvoltageonthelineandtheicemaker’sdataplate
beforeconnectingtheunit.
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E. WATERSUPPLYANDDRAINCONNECTIONS
GENERAL
Whenchoosingthewatersupplyfortheicemakerconsiderationshouldbegivento:
a. Lengthofrun
b. Waterclarityandpurity
c. Adequatewatersupplypressure
Sincewateristhemostimportantsingleingredientinproducingice,thethreeitemslistedaboveare
extremelysignificant.Lowwaterpressure,below14psi(1bar),maycausemalfunctionoftheice
maker.Watercontainingexcessivemineralswilltendtoproducecloudyicecubes,inadditiontoscale
build‐uponpartsofthewatersystem.
WATERSUPPLY
Connectthe¾”malefittingofthesolenoidwaterinletvalve,usingtheflexibletubesupplied,tothe
cold‐water supply line with regularplumbing fitting and ashut‐off valve installed in an accessible
positionbetweenthewatersupplylineandtheunit.Ifwatercontainsahighlevelofimpurities,itis
advisabletoconsidertheuseofanappropriatewaterfilter.
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NOTE:Allexternalwiringshouldconformtonational,
state,andlocalstandardsandregulations.

UCGGOURMETSERIESUNDERCOUNTER
pg.5
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WATERSUPPLY‐Watercooledmodels(UCG165)
Thewatercooledversionsrequiretwoseparateinletwatersupplies,oneforthewatersprayedfor
makingtheicecubesandtheotherforthewatercooledcondenser.Connectthe3/4"malefittingof
thewaterregulatingvalveusingtheflexiblehosesuppliedwiththeunittothecoldwatersupplyline
with regular plumbing fitting and a shut‐off valve installed in an accessible position between the
watersupplylineandtheunit.
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WATERDRAIN
Therecommendeddraintubeisaplasticorflexibletubewith18mm (3/4") I.D.runstoanopen
trappedandventeddrain.Whenthedrainisalongrun,allow3cmpitchpermeter(1/4"pitchper
foot).Averticalopenvent,attheunitdrainconnection,isalsorequiredforpropersumpdrainage.
WATERDRAIN‐Watercooledmodels
Thewaterdrainlinefromthecondenser,onwatercooledversions,isinternallyconnectedwiththe
drainfittingoftheunit.Itisstronglyrecommendedthereforetoinstallaverticalopenventonunit
drainlinehighpointtoensuregooddrainingandtodirectthedrainlinetoatrappedandvented
floordrainreceptacle.Thistomakesureoftheproperflowofthedrainedwateras,incaseofpoor
drainage,thewaterranningoutfromthecondensermayinopportunelyflow,throughtheunitdrain
tubing,intotheicestoragebin.
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F. FINALCHECKLIST
1. Istheunitinaroomwheretheambienttemperaturesarewithinaminimumof50˚F(10˚C)
eveninwintermonths?
2. Isthereatleasta6”(15cm)clearancearoundtheunitforproperaircirculation?
3. Istheunitlevel?(IMPORTANT)
4. Havealltheelectricalandplumbingconnectionsbeenmade,andisthewatersupplyshut‐off
valveopen?
5. Hasthevoltagebeentestedandcheckedagainstthedataplaterating?
6. Hasthewatersupplypressurebeencheckedtoensureawaterpressureofatleast14psi(1
bar)?
7. Checkallrefrigerantlinesandconduitlinestoguardagainstvibrationsandpossiblefailure.
8. Havetheboltsholdingthecompressordownbeencheckedtoensurethatthecompressoris
snuglyfittedontothemountingpads?
9. Havethebinlinerandcabinetbeenwipedclean?
10. Hastheowner/userbeengiventheInstallationandServiceManualandbeeninstructedon
theimportanceofperiodicmaintenancechecks?
11. Hastheunitbeenregisteredforwarranty?Checkforcorrectmodelandserialnumberagainst
theserialplate.
NOTE.Thewatersupplyandthewaterdrainmustbe
installedtoconformwiththelocalcode.Insomecasea
licensedplumberand/oraplumbingpermitisrequired.

UCGGOURMETSERIESUNDERCOUNTER
pg.6
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12. HastheownerbeengiventhenameandthephonenumberoftheauthorizedIce‐O‐Matic
ServiceAgencyservinghim/her?
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G. INSTALLATIONPRACTICE
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H.OPERATINGINSTRUCTIONS
STARTUP
Afterhavingcorrectlyinstalledtheicemakerandcompletedtheplumbingandelectricalconnections,
performthefollowing“start‐up”procedure.
UCG45/65/85/105
A‐Removetheunitfrontpanelandlocatethecleaningswitchonthecontrolbox.
B‐Setthecleaningswitchinthecleaningposition(II).Thiswillclosetheelectricalcircuittothewater
inletvalveandtothehotgasvalve.
C‐SwitchONthepowerlinedisconnectswitch.Unitwillstartupinwaterfillingphasemode.During
thisphasethecomponentsenergizedare:
WATERINLETSOLENOIDVALVE
HOTGASSOLENOIDVALVE
TheWaterpumpandtheFanmotorarealsoinoperation.
D‐Letunitstayinwaterfillingphasemodeforaboutthree/fourminutestillwateriscomingoutfrom
thedrainhose,thenmovethecleaningswitchtotheoperationposition(I).
WARNING:Thisicemakerisnotdesignedforoutdoorinstallationandwillnotfunctionin
ambienttemperaturesbelow50˚F(10˚C)andabove100˚F(40˚C).Thisicemakerwill
malfunctionwithwatertemperaturesbelow40
˚
F(5˚C)orabove90
˚
F(35˚C).

UCGGOURMETSERIESUNDERCOUNTER
pg.7
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UCG135/165
E‐GivepowertotheunittostartitupbyswitchingONthepowerlinemainswitch;theunitwill
startautomaticallyindefrostcyclewiththefollowingcomponentsenergized:
WATERINLETSOLENOID
VALVEHOTGASVALVE
COMPRESSOR
ELECTRONICTIMER
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OPERATIONALCHECKS
A. Theunitnowstartsitsfirstfreezingcyclewiththefollowingcomponentsinoperation:
COMPRESSOR
WATERPUMP
FANMOTORinaircooledversion
B. Checktoseethroughtheicedischargeopeningthatthespraysystemiscorrectlyseatedand
thatthewaterjetsuniformelyreachtheinterioroftheinvertedcupmolds;alsomakesurethat
theplasticcurtainishangingfreelyandthereisnotexcessivewaterspillingthroughit.
C. Theicemakingprocesstakesplacethereby,withthewatersprayedintothemoldsthatgets
graduallyrefrigeratedbytheheatexchangedwiththerefrigerantflowingintotheevaporator
serpentine.
D.OnunitsUCG45/65/85/105whentheevaporatortemperaturereachesapresetvaluethe
evaporatorthermostatorcubesizecontrolchangesitscontacts;thefreezingcycleendsandstarts
thedefrostorharvestcycle.
E. OnmodelsUCG135/165freezingcycleiscompletedthroughanelectronictimerenergizedby
theevaporatorthermostat.Itstartswhenthecubesizethermostat/controlbulb(pigtail)locatedon
theevaporatorserpentinereachesatemperatureofapprox.‐15°C(5°F).

F. Check,duringthefirstdefrost/harvestcycle,thattheincomingwaterflowscorrectlyintothe
sumpreservoirinordertore‐fillitandthe
esurplus overflowsthroughtheoverflowdraintube.
NOTE.Duringthedefrostcycle,thewaterinlet
solenoidvalveisenergized.Thewaterflows
throughthevalvetothebacksideofthe
evaporatorplatenandthendowntofillupthe
i c e m a k e r s u m p t a n k f o r t h e n e x t f r e e z i n g c y c l e .
OnunitsUCG135/165theadditionalTime(12')ofthefreezingcyclestartswhenthecubesize
thermostatcontrolbulb(pigtail)locatedontheevaporatorcoilreachesatemperatureofapprox.‐
15C.Freezingtimewillrangebetween20and22minutesina21Cambienttemperature,longerif
abovethistemperatureandshorterifbelow.ThentheunitgoesdirectlyintotheDefrostCycle.The
averagecompletecycletimeisbetween23and25 minutes.

UCG GOURMET SERIES UNDERCOUNTER
pg. 8
G. Check the texture of ice cubes just released. Right size must have a small depression (about 5-6
mm) in their crown.If not, wait for the second defrost/harv before performing any adjustment.
H. If required on model UCG 45/65/85/105, the length of the freezing cycle can be modified by
turning the knob of the cube size control or evaporator thermostat located in frontofthe
machineuntilthedesiredsizeisachieved.
if the temperature
of the room in which
the machine is place
is below 20°C, the
cubes will tend to be
partly hollowed out
(see fig. on right).
If, on the other
hand, the room
temperature is
above 30°C the
cubes produced will
have a jagged rim of
ice around the
crown.

UCGGOURMETSERIESUNDERCOUNTER
pg.9


Ifitisthoughtnecessary,theabovesituationscanberectifiedby,inthefirstcase,turningthe
controlknob(aslittleorasmuchasisrequired)clockwiseand,inthesecondcase,turningthe
knobtotherightcounterclockwise.
Itshould,however,berememberedthatiftheroomtemperaturereturnslatertothe20 30C
range,theknobindicatormustonceagainbeturnedtothepreviousposition.
Iftheicecubesareshallowandcloudy,itispossiblethattheicemakerrunsshortofwater
duringtheendofthefreezingcycleor,thequalityofthesuppliedwaterrequirestheuseofan
appropriatewaterfilterorconditioner.
I. Attheendofthedefrostorharvestcycleholdahandfuloficecubesagainstthebulbofthe
storagebinthermostat;theicemakerswitchOFFinaboutone‐twominutes.Takeouttheice
fromthestoragebinthermostat.Theicemakershouldrestartautomaticallyinthree‐four
minutes.


J. Re‐fittheunitfrontpaneltheninstructtheowner/useronthegeneraloperationoftheice
machineandaboutthecleaningandcareitrequires


PRINCIPLEOFOPERATION
IntheIce‐O‐Maticcubeicemakers,thewaterusedtomaketheiceiskeptconstantlyincirculationbyan
electricwaterpumpwhichprimesittothespraysystemnozzlesformwhereitisdivertedintotheinverted
moldcupsoftheevaporator.Asmallquantityofthesprayedwaterfreezesintoice;therestofitcascades
bygravityintothesumpassemblybelowforrecirculation.
NOTE.Thebinthermostatisfactorysetat1C
(35F)OUTand4C(39F)IN.

UCGGOURMETSERIESUNDERCOUNTER
pg.10
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