Scotsman NW-307 User Manual

Scotsman Ice Systems
 InstallationandOperatingInstructions
 NW‐307/507/457/608/1008/1408Models
 ImportantInformation
Thisequipmentmustbeinstalledinaccordancewithalllocal,state,andnational
regulations.Themachinemustbeinstalledcorrectlyasperinstillationinstructions.
ThismachinemustbeinstalledbyaqualifiedRefrigerationorElectricaltechnician.
Aplumbershouldbeusedtomakethewaterconnectionsonly.

 THISMACHINEISNOTDESIGNEDFOROUTDOORUSE 
LOCATION‐ Thisicemachinemustbelevelandsituatedinacooldryareawith
sufficientairventilation.TheicemachineisNOTtobeinstalledinacupboardor
withlimitedorrestrictiveairflow.TheequipmentshouldNOTbelocatednextto
equipmentthatdischargesorradiateshotaironorneartheicemachine.NOTE:
HotterworkingenvironmentsORwatertemperatureswillreducetheproduction
capacityofthemachine.OperatingSpecificationsBelow
OperatingairtemperaturesMin10 ° ctoMax40 ° c(24 ° cideal)
OperatingwatertemperaturesMin5 ° ctoMax35 ° c(18 ° cideal)
OperatingwaterpressureMin1bartoMax5bar
MachinesideclearanceMin150mm
MachinerearclearanceMin100mm
MachinetopclearanceMin400mm(NW307/507modelsonly)

Awaterfiltersystemmustbefittedtotheicemachine,thiswillhelptoreduceand
controlthebuildupofsediment,scale,mineralandbacteriafromaccumulatinginside
themachine.
 Theicemakerslocationshouldhaveadedicatedpowerpoint,a
dedicatedwatersupplyandawaterdrainagepointwithingonemeterofthe
machine.Fortheicemakertooperateeffectivelyandefficientlythemachine
requiressufficientairventilation.Themachinerequiresaminimumsideclearance
of150mm,aminimumrearclearanceof100mm(NW‐307/507topclearanceminof
400mm)

  
 ContactMoffatServiceSupportOn1300264217ForAssistance
Set‐Up‐ Forinstillationofanicemakertoanicestoragebinortoanicedispenser.
Fitlegstotheicestoragebinoricedispenserandsettominimumheight,fitthe
waterdrainhoseandhosecliptotheundersidewateroutletofthebin/dispenser.
Positiontheicestorageunitnearitsfinallocation.Mounttheicemakerheadtothe
icestorageunit.Openthefrontpaneloftheicemakerandremovethemanuals,
waterhoses,packaging,andredstrappingtape.Removethesidepanelsandsecure
theicemakerheadtotheicebinordispenser.(sidescrewsforicebinandrear
bracketsandscrewsfordispenser)Ensuretheinternalpartsarefittedandsecuredin
theirfinaloperatingpositions(watertrough,waterpump,watercurtain,iceprobeor
float,waterdistributiontube,etc.
)
 

Fitthewatersupplyhoseandthewaterdrainhosetotheirconnectionpointsatthe
rearoftheicemakerusinghosessupplied.Connectthewatersupplyhosetothe
waterfilteroutlet,attachthewaterdrainhosetothefloordrainortundish.
  
Fitthesteeldeflectorplateto(backrightside)oftheicemaker.Thisistoprevent
recirculationofhotairbackintotheicemaker.(OntheNW307/507modelsfitthe
wireframetothetopofthemachinetopreventthedischargeventsbeingcovered)
Maneuverthemachineintoitsfinalposition.Ensuretheicemachinehasrequired
side,rear,ortopclearances.Ensurethemachineislevelonceinitsfinalposition.
Removetheprotectiveplasticfromthepanelsofthemachineandicestorageunit.
ElectricalConnections
Theelectricalconnectionsforthismachinemustcomplywithalllocal,state,and
nationalregulations.Theicemakerrequiresadedicatedpowerpoint.Checkthe
serialplatetoensurevoltagerequirementsandplugaresuitableforthewallsocket
andpowersupplyforyourlocalarea.Allelectricalconnectionsandadjustments
mustbeundertakenbyaqualifiedtechnician.
12PointChecklist
1) Istheicemakerlevelandsecuretotheicestorageunit?
2) Istheambientairtemperaturebetween10cand40c?
3) Istheretherequired150mmsideclearance,100mmrearclearanceandtop
ventilationclearances?(NW307/507)Isthereanyotherequipment
discharginghotairnearornexttothemachine?
4) Havethewaterconnectionsbeenmadeandisthewaterpressurebetween1
and5bars?Hasthewaterpressurebeentested?
5) Istheincomingwatertemperaturebetween5Cand35C?
6) Doesthemachinehaveawaterfilterfitted?
7) Dotheelectricalrequirementscomplyandhastheelectricalconnection
beenmade?DONOTTURNONTHEMACHINE.
8) Hasallthepackagingbeenremovedfrominsidetheicemachine?
9) Arealltheinternalcomponentsbeenfittedandsecuredcorrectly?
10) Hastheownerbeeninstructedontheoperationandmaintenanceofthe
machine?Hastheownerbeengiventheinstillationinstructionswhich
includethemaintenancescheduledetails?
11) Hasthemachinebeencleanedandsanitizedbeforestartingup?
12) DoesthecustomerhaveMoffat’sservicecontactdetails?
StartUp
1) Openthewatersupplytotheicemachineandcheckforwaterleaks.
2) Switchthepoweronatthewallsocket.
3) TheNW307/507/457/608modelswillenterthestartupmode.ThePCBoard
willshowthepowerON(greenlighton)andthefreezingandfullbinlights
willflashfor3minuteswhilefilling/purgingwater.
TheNW1008andNW1408machineshavea90‐minutestartdelay.These
modelshaveacrankcaseheaterinthecompressor.Ifthetemperatureis
above25c,thePCBoardwilloverridethetimedelay.Onecanoverridethe
timedelaybypressingthebypassswitchontherearoftheicemachine.
4) Afterstartingupmodethemachinewillenterthefreezingmode.The
refrigerationsystemwillrun,andthecondenserfanwillthermostatonand
offduringthecycle(icemakinggreenlighton)Thewaterpumpwillrunand
circulateswaterovertheevaporator.Thewaterlevelsensorswillmonitor
thewaterlevelandaddwaterwhenrequired.After+‐15to24minutesthe
icethicknessprobe/floatwillputtheicemachineintoaharvestonceit
sensesafullsheetofice.Theharvestmodewillrunfor+‐60secondsand
willheattheevaporatoruntiltheicedropsintotheicebin.
5) Whentheicedropsintotheicebinthewatercurtainopensandthencloses.
ThePCBoardsensestheicedropandputsthemachinebackintoafreeze
cycletomakemoreice.Whentheicebinisfullthewatercurtainisleftin
theopenposition,thePCBoardsensestheopencircuitandshutsthe
machinedown(fullbinorangelighton)untiltheicebinleveldropsenough
forthewatercurtaintoclose.Themachinewillrestartafterathree‐minute
delay.
6) Inspecttheiceinthestoragebinaftertheseconddropoficeandif
necessary,adjusttheicethicknessfloatprobeasperbelowdiagram.
NOTE:Theicecubesmusthavea+‐3mmconcavedimpleinthebackof
eachcube.Themachinemakesaslaboficethatbreaksupwhenfalling
intotheicebin,noteveryicecubewillbreakupperfectly.Iftheice
thicknessissettothicktheicewillnotbreakupandiftheiceissettothin,
theicesheetisnotfullyformedandmayshutthemachinedown.The
machinesrequireafullsheetoficetodropofftheevaporator(not
individualpieces)

IceThicknessFloatProbeIceThicknessDiagram

  

Theicethicknessprobecanbeadjustedforthickerorthinnericecubes.By
carefullylooseningtheicethicknessfloatbracketscrew,movethebracket
upslightly(forthinnerice)ordownslightly(forthickerice)Takeaphotoof
thebracketpositionbeforeyoumaketheadjustment.Onlymovethe
bracket1mmatatime,checktheicethicknessafterthetwodropsofice
aftertheadjustmenthasbeenmade.

NOTE:Theicecubesshouldhavea3mmconcavedimpleonthebackofthe
cube.Theicebridgeconnectingtheicecubesshouldbebetween2mmand
3mmthick.Donotmovetheicethicknessbracketupordownmorethan
1mmatatime.
(Usea6mmdrillbittosetclearancebetweenprobeandevaporator.)

ContactMoffatPtyLtdon1300264217forAssistance 

Scotsman NW-307 Specifications

General

Brand	Scotsman
Model	NW-307
Category	Industrial Equipment
Language	English