Manitowoc SR1801W Especificações

Technician’s HandbookThis manual is updated as new information and models are released. Visit our website for the latest manual. www.manitowocice.comA

10 Part Number 80-1479-3 7/10HOW TO READ A MODEL NUMBERIce Cube SizesRegular1-1/8" x 1-1/8" x 7/8"2.86 x 2.86 x 2.22 cmDice7/8" x

100 Part Number 80-1479-3 7/10Freeze Cycle Suction Pressure_______ ______ _____1 minute Middle EndIf suction pressure is High or Low

Part Number 80-1479-3 7/10 101Discharge Line TemperatureRecord freeze cycle discharge line temperature at the end of the freeze cycle_________°F (°C)D

102 Part Number 80-1479-3 7/10Freeze Cycle Refrigeration System Operational Analysis TablesS MODELS FOUR EXPANSION VALVESOperational Analysis 1 2 3 4

Part Number 80-1479-3 7/10 103Freeze Cycle Discharge Pressure_____ ______ _____1 minute Middle EndIf discharge pressure is High or Low refer

104 Part Number 80-1479-3 7/10Harvest Valve Temperature Wait 5 minutes into the freeze cycle.Compare temperatures of compressor discharge line and har

Part Number 80-1479-3 7/10 105FREEZE CYCLE REFRIGERATION SYSTEM OPERATIONAL ANALYSIS TABLE PROCEDURESThe following is the procedures for completing ea

106 Part Number 80-1479-3 7/10Ice Production CheckThe amount of ice a machine produces directly relates to the operating water and air temperatures. T

Part Number 80-1479-3 7/10 107Weighing the ice is the only 100% accurate check. However, if the ice pattern is normal and the 1/8 in. thickness is mai

108 Part Number 80-1479-3 7/10Installation/Visual Inspection ChecklistInadequate Clearances• Check all clearances on sides, back and top.Ice machine i

Part Number 80-1479-3 7/10 109Water System ChecklistA water-related problem often causes the same symptoms as a refrigeration system component malfunc

Part Number 80-1479-3 7/10 11Model/Serial Number LocationThese numbers are required when requesting information from your local Manitowoc Distributor,

110 Part Number 80-1479-3 7/10Ice Formation PatternEvaporator ice formation pattern analysis is helpful in ice machine diagnostics.Analyzing the ice f

Part Number 80-1479-3 7/10 1112. Extremely Thin at Evaporator OutletThere is no ice, or a considerable lack of ice formation, at the outlet of the eva

112 Part Number 80-1479-3 7/10Analyzing Discharge Pressure in the Freeze Cycle1. Determine the ice machine operating conditions:Air temp. entering con

Part Number 80-1479-3 7/10 113FREEZE CYCLE DISCHARGE PRESSURE HIGH CHECKLISTImproper Installation• Refer to “Installation/Visual Inspection Checklist”

114 Part Number 80-1479-3 7/10FREEZE CYCLE DISCHARGE PRESSURELOW CHECKLISTImproper Installation• Refer to “Installation/Visual Inspection Checklist” (

Part Number 80-1479-3 7/10 115Analyzing Suction PressureThe suction pressure gradually drops throughout the Freeze cycle. The actual suction pressure

116 Part Number 80-1479-3 7/10Suction Pressure High ChecklistImproper Installation• Refer to “Installation/Visual Inspection Checklist” page 108Discha

Part Number 80-1479-3 7/10 117SUCTION PRESSURE LOW CHECKLISTImproper Installation• Refer to “Installation/Visual Inspection Checklist” (page 108)Disch

118 Part Number 80-1479-3 7/10Single Expansion Valve Ice Machines Comparing Evaporator Inlet and Outlet TemperaturesNOTE: This procedure will not work

Part Number 80-1479-3 7/10 119Multiple Expansion Valve Ice Machines Comparing Evaporator Inlet and Outlet TemperaturesThe temperatures of the suction

12 Part Number 80-1479-3 7/10Energy Efficient Ice MachineSerial BreaksSome specifications have changed with our release of more Energy Efficient machi

120 Part Number 80-1479-3 7/10Harvest Valve AnalysisSymptoms of a harvest valve remaining partially open during the freeze cycle can be similar to sym

Part Number 80-1479-3 7/10 1215. Record your findings on the table.Findings CommentsThe inlet of the harvest valve is cool enough to touch and the com

122 Part Number 80-1479-3 7/10Discharge Line Temperature AnalysisGENERALKnowing if the discharge line temperature is increasing, decreasing or remaini

Part Number 80-1479-3 7/10 123Water Regulating ValveProblem (Freeze Cycle)Valve not maintaining discharge pressure.• Valve incorrectly set, dirty or d

124 Part Number 80-1479-3 7/10Final AnalysisThe column with the highest number of check marks identifies the refrigeration problem.COLUMN 1 - HARVEST

Part Number 80-1479-3 7/10 125COLUMN 3 - TXV FLOODINGA loose or improperly mounted expansion valve bulb causes the expansion valve to flood. Check bul

126 Part Number 80-1479-3 7/10Harvest ProblemsDefinition of a harvest problem; At the end of a 3.5 minute harvest cycle the slab of ice is still conta

Part Number 80-1479-3 7/10 127SYMPTOM #3 ICE WILL NOT HARVEST, CUBES ARE NOT MELTEDYESYESYESNONONOYESIce Machine Will Not Harvest - Freeze Cycle is No

128 Part Number 80-1479-3 7/10YESYESYESYESYESYESYESNO NONONONONOSelf ContainedAir-cooled Condenser?Self ContainedWater-cooled Condenser?Fan cyclingcon

Part Number 80-1479-3 7/10 129SYMPTOM #3 - TRADITIONAL REMOTES ONLYRefer to Symptom #2 - Freeze Cycle Analysis ChartTraditional Remote Ice Machine - L

Part Number 80-1479-3 7/10 13Ice Machine Warranty InformationOWNER WARRANTY REGISTRATION CARDWarranty coverage begins the day the ice machine is insta

130 Part Number 80-1479-3 7/10Refer to Sequence ofOperation & Wiring DiagramsYESYESYESNONONOYESNOYESIs harvest valve energized?Is head pressure hi

Part Number 80-1479-3 7/10 131SYMPTOM #4 WILL NOT HARVEST, MELTED CUBESLevel Ice MachineRefer toDump ValveDiagnosticsIs water flowing over the evapora

132 Part Number 80-1479-3 7/10Refer to Symptom #2 Freeze Cycle OperationalAnalysis TableRefer to Heavily ScaledCleaning ProcedureDischarge line temper

Part Number 80-1479-3 7/10 133This Page Intentionally Left Blank

134 Part Number 80-1479-3 7/10This Page Intentionally Left Blank

Part Number 80-1479-3 7/10 135Component Check ProceduresElectrical ComponentsMAIN FUSEFUNCTIONThe control board fuse stops ice machine operation if el

136 Part Number 80-1479-3 7/10ICE/OFF/CLEAN TOGGLE SWITCHFUNCTIONThe switch is used to place the ice machine in ICE, OFF or CLEAN mode of operation.SP

Part Number 80-1479-3 7/10 137BIN SWITCHFUNCTIONMovement of the water curtain/ice dampers control bin switch operation. The bin switch has two main fu

138 Part Number 80-1479-3 7/10SYMPTOMSBin Switch Fails Open• The ice machine will not start with the toggle switch in the ice position, but runs norma

Part Number 80-1479-3 7/10 139Water Curtain/Ice Damper Removal NotesThe water curtain must be on (bin switch closed) to start ice making. While a Free

14 Part Number 80-1479-3 7/10COMMERCIAL WARRANTY COVERAGEManitowoc Ice, (hereinafter referred to as the "COMPANY") warrants for a period of

140 Part Number 80-1479-3 7/10CLEANING THE ICE THICKNESS OR WATER LEVEL PROBEClean the probes using the following procedure.1. Mix a solution of Manit

Part Number 80-1479-3 7/10 141WATER LEVEL CONTROL CIRCUITRYThe water level probe circuit can be monitored by watching the water level light. The water

142 Part Number 80-1479-3 7/10Diagnosing Water Level Control CircuitryPROBLEM: WATER TROUGH OVERFILLING DURING THE FREEZE CYCLEStep 1 Start a new Fr

Part Number 80-1479-3 7/10 143WATER TROUGH OVERFILLING CONTINUEDStep 3. Jumper Wire Connected from Control Board Terminal to GroundIs WaterFlowinginto

144 Part Number 80-1479-3 7/10PROBLEM: WATER WILL NOT RUN INTO THE SUMP TROUGH DURING THE FREEZE CYCLEStep 1 Verify water is supplied to the ice mac

Part Number 80-1479-3 7/10 145Step 3 Disconnect the water level probe from the water level probe terminal on the control board.ImportantFor the tes

146 Part Number 80-1479-3 7/10ICE THICKNESS PROBE (HARVEST INITIATION)HOW THE PROBE WORKSManitowoc’s electronic sensing circuit does not rely on refri

Part Number 80-1479-3 7/10 147MAXIMUM FREEZE TIMEThe control system includes a built-in safety which will automatically cycle the ice machine into har

148 Part Number 80-1479-3 7/10Diagnosing Ice Thickness Control CircuitryPROBLEM: ICE MACHINE DOES NOT CYCLE INTO HARVEST WHEN WATER CONTACTS THE ICE T

Part Number 80-1479-3 7/10 149PROBLEM: ICE MACHINE CYCLES INTO HARVEST BEFORE WATER CONTACT WITH THE ICE THICKNESS PROBEStep 1 Bypass the freeze tim

Part Number 80-1479-3 7/10 15The foregoing warranty shall not apply to (1) any part or assembly that has been altered, modified, or changed; (2) any p

150 Part Number 80-1479-3 7/10HARVEST CYCLE CIRCUITRYThe water level probe does not control the water inlet valve during the harvest cycle. During the

Part Number 80-1479-3 7/10 151HARVEST ASSIST AIR PUMPFUNCTIONThe air pump breaks the vacuum between the sheet of ice and the evaporator which results

152 Part Number 80-1479-3 7/10Compressor Electrical DiagnosticsThe compressor does not start or will trip repeatedly on overload.Check Resistance (Ohm

Part Number 80-1479-3 7/10 153CHECK MOTOR WINDINGS TO GROUNDCheck continuity between all three terminals and the compressor shell or copper refrigerat

154 Part Number 80-1479-3 7/10DIAGNOSING START COMPONENTSIf the compressor attempts to start, or hums and trips the overload protector, check the star

Part Number 80-1479-3 7/10 155RelayThe relay has a set of contacts that connect and disconnect the start capacitor from the compressor start winding.

156 Part Number 80-1479-3 7/10PTCRThe PTCR allows current to flow through the start winding at compressor startup. Current flow heats the ceramic disc

Part Number 80-1479-3 7/10 157PTCR Operation Check1. Visually inspect the PTCR. Check for signs of physical damage.NOTE: The PTCR case temperature may

158 Part Number 80-1479-3 7/10Refrigeration ComponentsHIGH PRESSURE CUTOUT (HPCO) CONTROLFUNCTIONStops the ice machine if subjected to excessive high-

Part Number 80-1479-3 7/10 159FAN CYCLE CONTROLSelf-Contained Air-Cooled Models OnlyFUNCTIONCycles the fan motor on and off to maintain proper operati

16 Part Number 80-1479-3 7/10RESIDENTIAL ICE MACHINE LIMITED WARRANTYWHAT DOES THIS LIMITED WARRANTY COVER?Subject to the exclusions and limitations b

160 Part Number 80-1479-3 7/10WATER REGULATING VALVESelf-Contained Water-Cooled Models OnlyFUNCTIONThe water regulating valve maintains the freeze cyc

Part Number 80-1479-3 7/10 161HARVEST PRESSURE REGULATING (HPR) SYSTEM REMOTES ONLYGENERALThe harvest pressure regulating (H.P.R.) system includes:• H

162 Part Number 80-1479-3 7/10FREEZE CYCLEThe H.P.R. system is not used during the freeze cycle. The H.P.R. solenoid is closed (de-energized), prevent

Part Number 80-1479-3 7/10 1633. Freeze time normal? (Refer to Cycle Times/Refrigerant Pressures/24 Hour Ice Production Charts page 191)Shorter freeze

164 Part Number 80-1479-3 7/10HEAD PRESSURE CONTROL VALVEManitowoc remote systems require head pressure control valves with special settings. Replace

Part Number 80-1479-3 7/10 1655. Using the information gathered, refer to the chart below.NOTE: A head pressure control valve that will not bypass, wi

166 Part Number 80-1479-3 7/10FAN CYCLE CONTROL VS. HEAD PRESSURE CONTROL VALVEA fan cycle control cannot be used in place of a head pressure control

Part Number 80-1479-3 7/10 167LOW PRESSURE CUTOUT (LPCO) CONTROL(S3300 Only)FUNCTIONSignals the control board to energize and de-energize the ice mach

168 Part Number 80-1479-3 7/10HARVEST PRESSURE SOLENOID VALVE(S3300 Only)FUNCTIONTransfers refrigerant from the high side to the low side during the h

Part Number 80-1479-3 7/10 169Refrigerant Recovery/EvacuationNORMAL SELF-CONTAINED MODEL PROCEDURESDo not purge refrigerant to the atmosphere. Capture

Part Number 80-1479-3 7/10 17WHAT ARE MANITOWOC ICE’S OBLIGATIONS UNDER THIS LIMITED WARRANTY?If a defect arises and Manitowoc receives a valid warran

170 Part Number 80-1479-3 7/10Self-Contained Recovery/Evacuation1. Place the toggle switch in the OFF position.2. Install manifold gauges, scale and r

Part Number 80-1479-3 7/10 171Self-Contained Charging Procedures1. Be sure the toggle switch is in the OFF position.ImportantThe ch arge is critical o

172 Part Number 80-1479-3 7/102. Close the vacuum pump valve, the low side service valve, and the low side manifold gauge valve.3. Open the high side

Part Number 80-1479-3 7/10 173NORMAL REMOTE MODEL PROCEDURESRefrigerant Recovery/EvacuationDo not purge refrigerant to the atmosphere. Capture refrige

174 Part Number 80-1479-3 7/10NOTE: Manitowoc recommends using an access valve core removal and installation tool on the discharge line quick-connect

Part Number 80-1479-3 7/10 175REMOTERECOVERY/EVACUATIONCONNECTIONS

176 Part Number 80-1479-3 7/10Remote Charging Procedures1. Be sure the toggle switch is in the OFF position.2. Close the vacuum pump valve, the low an

Part Number 80-1479-3 7/10 177xxxSCHRAEDER FITTINGQUICK CONNECTDISCHARGE LINECONTROL VALVEHEAD PRESSUREREMOTE CONDENSERCLOSEDCLOSEDSCALERECOVERY UNITV

178 Part Number 80-1479-3 7/10System Contamination Clean-UpGeneralThis section describes the basic requirements for restoring contaminated systems to

Part Number 80-1479-3 7/10 179Contamination Cleanup ChartSymptoms/FindingsRequired Cleanup ProcedureNo symptoms or suspicion of contaminationNormal ev

18 Part Number 80-1479-3 7/10WHAT IS NOT COVERED? This limited warranty does not cover, and you are solely responsible for the costs of: (1) periodic

180 Part Number 80-1479-3 7/10CLEANUP PROCEDUREMild System Contamination1. Replace any failed components.2. If the compressor is good, change the oil.

Part Number 80-1479-3 7/10 181Severe System Contamination1. Remove the refrigerant charge.2. Remove the compressor.3. Disassemble the harvest solenoid

182 Part Number 80-1479-3 7/1010. Follow the normal evacuation procedure, except replace the evacuation step with the following:A. Pull vacuum to 1000

Part Number 80-1479-3 7/10 183REPLACING PRESSURE CONTROLS WITHOUT REMOVING REFRIGERANT CHARGEThis procedure reduces repair time and cost. Use it when

184 Part Number 80-1479-3 7/10SV1406USING PINCH-OFF TOOL

Part Number 80-1479-3 7/10 185SpecificationsMAIN FUSEThe main fuse is 250 Volt, 7 amp.FAN CYCLE CONTROL(Self-Contained Air-Cooled Models Only)HIGH PRE

186 Part Number 80-1479-3 7/10FILTER-DRIERSThe filter-driers used on Manitowoc ice machines are manufactured to Manitowoc specifications.The differenc

Part Number 80-1479-3 7/10 187TOTAL SYSTEM REFRIGERANT CHARGENOTE: All machines listed use R-404A refrigerant.ImportantThis information is for referen

188 Part Number 80-1479-3 7/10S1000 Before 110697023 36 oz. 26 oz. 8.5 lb. 2 lb. 10.5 lb.S1000 After 110697023 34 oz. 28 oz. 8.5 lb. 2 lb. 10.5 lb.S12

Part Number 80-1479-3 7/10 189This Page Intentionally Left Blank

Part Number 80-1479-3 7/10 19IN NO EVENT SHALL MANITOWOC OR ANY OF ITS AFFILIATES BE LIABLE TO THE CONSUMER OR ANY OTHER PERSON FOR ANY INCIDENTAL, CO

190 Part Number 80-1479-3 7/10This Page Intentionally Left Blank

Part Number 80-1479-3 7/10 191ChartsCycle Times/24-Hour Ice Production/Refrigerant Pressure ChartsThese charts are used as guidelines to verify correc

192 Part Number 80-1479-3 7/10S300 SERIESS300AAll Self-Contained Air-cooled Models Before Serial Number 110704351Characteristics may vary depending on

Part Number 80-1479-3 7/10 193S300AAll Self-Contained Air-cooled Models After Serial Number 110704351Characteristics may vary depending on operating c

194 Part Number 80-1479-3 7/10S300WAll Self-Contained Water-cooled Models Before Serial Number 110704351Characteristics may vary depending on operatin

Part Number 80-1479-3 7/10 195S300WAll Self-Contained Water-cooled Models After Serial Number 110704351Characteristics may vary depending on operating

196 Part Number 80-1479-3 7/10S320 SERIESS300AAll Self-Contained Air-Cooled ModelsCharacteristics may vary depending on operating conditions.CYCLE TIM

Part Number 80-1479-3 7/10 197S320 SeriesAll Self-Contained Water-Cooled ModelsCharacteristics may vary depending on operating conditions.CYCLE TIMESF

198 Part Number 80-1479-3 7/10S420 SERIESS420AAll Self-Contained Air-cooled Models Before Serial Number110667970Characteristics may vary depending on

Part Number 80-1479-3 7/10 199S420AAll Self-Contained Air-cooled Models After Serial Number 110667970Characteristics may vary depending on operating c

20 Part Number 80-1479-3 7/10This Page Intentionally Left Blank

200 Part Number 80-1479-3 7/10S420WAll Self-Contained Water-cooled Models Before Serial Number 110667970Characteristics may vary depending on operatin

Part Number 80-1479-3 7/10 201S420WAll Self-Contained Water-cooled Models After Serial Number 110667970Characteristics may vary depending on operating

202 Part Number 80-1479-3 7/10S450 SERIESS450AAll Self-Contained Air-cooled Models Before Serial Number 110670157Characteristics may vary depending on

Part Number 80-1479-3 7/10 203S450AAll Self-Contained Air-cooled Models After Serial Number 110670157Characteristics may vary depending on operating c

204 Part Number 80-1479-3 7/10S450WAll Self-Contained Water-cooled Models Before Serial Number 110670157Characteristics may vary depending on operatin

Part Number 80-1479-3 7/10 205S450WAll Self-Contained Water-cooled Models After Serial Number 110670157Characteristics may vary depending on operating

206 Part Number 80-1479-3 7/10S500 SERIESS500AAll Self-Contained Air-cooled Models Before Serial Number 110684316Characteristics may vary depending on

Part Number 80-1479-3 7/10 207SD0502A Dice Cube, Self-Contained Air-cooled After Serial Number Characteristics may vary depending on operating conditi

208 Part Number 80-1479-3 7/10SY0504AHalf Dice Cube, Self-Contained Air-cooled After Serial Number 110684316Characteristics may vary depending on oper

Part Number 80-1479-3 7/10 209S500WAll Self-Contained Water-cooled Models Before Serial Number 110684316Characteristics may vary depending on operatin

Part Number 80-1479-3 7/10 21InstallationLocation of Ice MachineThe location selected for the ice machine head section must meet the following criteri

210 Part Number 80-1479-3 7/10SD0503WDice Cube, Self-Contained Water-cooled Models After Serial Number 110684316Characteristics may vary depending on

Part Number 80-1479-3 7/10 211SY0505W Half Dice Cube, Self-Contained Water-cooled After Serial Number 110684316Characteristics may vary depending on o

212 Part Number 80-1479-3 7/10S500NAll Remote Air-cooled Condenser Models Before Serial Number 110684316Characteristics may vary depending on operatin

Part Number 80-1479-3 7/10 213SD0592NDice Cube, Remote Air-cooled Condenser Models After Serial Number 110684316Characteristics may vary depending on

214 Part Number 80-1479-3 7/10SY0594NHalf Dice Cube, Remote Air-cooled Condenser Models After Serial Number 110684316Characteristics may vary dependin

Part Number 80-1479-3 7/10 215S600 SERIESS600AAll Self-Contained Air-Cooled ModelsCharacteristics may vary depending on operating conditions.CYCLE TIM

216 Part Number 80-1479-3 7/10S600WAll Self-Contained Water-Cooled ModelsCharacteristics may vary depending on operating conditions.CYCLE TIMESFreeze

Part Number 80-1479-3 7/10 217S600NAll Remote Air-Cooled Condenser ModelsCharacteristics may vary depending on operating conditions.CYCLE TIMESFreeze

218 Part Number 80-1479-3 7/10S850 SERIESS850AAll Self-Contained Air-Cooled Models Before Serial Number 110683282Characteristics may vary depending on

Part Number 80-1479-3 7/10 219SD0852ADice Cube, Self-Contained Air-Cooled Models After Serial Number 110683282Characteristics may vary depending on op

22 Part Number 80-1479-3 7/10Ice Machine Clearance RequirementsS300Self-Contained Air-CooledSelf-Contained Water-CooledTop/Sides 16" (40.6 cm) 8&

220 Part Number 80-1479-3 7/10SY0854AHalf Dice Cube, Self-Contained Air-Cooled Models After Serial Number 110683282Characteristics may vary depending

Part Number 80-1479-3 7/10 221S850WAll Self-Contained Water-Cooled Models Before Serial Number 110683282Characteristics may vary depending on operatin

222 Part Number 80-1479-3 7/10SD0853WDice Cube, Self-Contained Water-Cooled Models After Serial Number 110683282Characteristics may vary depending on

Part Number 80-1479-3 7/10 223SY0855WHalf Dice Cube, Self-Contained Water-Cooled Models After Serial Number 110683282Characteristics may vary dependin

224 Part Number 80-1479-3 7/10S850N Remote Air-cooled CondenserAll Remote Condenser Air-Cooled Before Serial Number 110682385Characteristics may vary

Part Number 80-1479-3 7/10 225SD0892N Dice Cube, Remote Condenser Air-Cooled After Serial Number 110682385Characteristics may vary depending on operat

226 Part Number 80-1479-3 7/10SY0894N Half Dice Cube, Remote Condenser Air-Cooled After Serial Number 110682385Characteristics may vary depending on o

Part Number 80-1479-3 7/10 227S1000 SERIESS1000AAll Self-Contained Air-cooled Before Serial Number 110697023Characteristics may vary depending on oper

228 Part Number 80-1479-3 7/10SD1002ADice Cube, Self-Contained Air-cooled After Serial Number 110697023Characteristics may vary depending on operating

Part Number 80-1479-3 7/10 229SY1004AHalf Dice Cube, Self-Contained Air-cooled After Serial Number 110697023Characteristics may vary depending on oper

Part Number 80-1479-3 7/10 23Ice Machine Heat of RejectionSeries Ice MachineHeat of RejectionAir Conditioning*PeakS300 3,800 6,000S320 3,800 6,000S420

230 Part Number 80-1479-3 7/10S1000WAll Self-Contained Water-cooled Before Serial Number 110697023Characteristics may vary depending on operating cond

Part Number 80-1479-3 7/10 231SD1003WDice Cube, Self-Contained Water-cooled After Serial Number 110697023Characteristics may vary depending on operati

232 Part Number 80-1479-3 7/10SY1005WHalf Dice Cube, Self-Contained Water-cooled After Serial Number 110697023Characteristics may vary depending on op

Part Number 80-1479-3 7/10 233S1000NAll Remote Condenser Air-cooled Before Serial Number 110697023Characteristics may vary depending on operating cond

234 Part Number 80-1479-3 7/10SD1092NDice Cube, Remote Condenser Air-cooled After Serial Number 110697023Characteristics may vary depending on operati

Part Number 80-1479-3 7/10 235SY1094NHalf Dice Cube, Remote Condenser Air-cooled After Serial Number 110697023Characteristics may vary depending on op

236 Part Number 80-1479-3 7/10S1200 SERIESS1200AAll Self-Contained Air-cooled Before Serial Number 110697023Characteristics may vary depending on oper

Part Number 80-1479-3 7/10 237SD1202A Dice Cube, Self-Contained Air-cooled After Serial Number 110697023Characteristics may vary depending on operatin

238 Part Number 80-1479-3 7/10SY1204AHalf Dice Cube, Self-Contained Air-cooled After Serial Number 110697023Characteristics may vary depending on oper

Part Number 80-1479-3 7/10 239S1200WAll Self-Contained Water-cooled Before Serial Number 110697023Characteristics may vary depending on operating cond

24 Part Number 80-1479-3 7/10REMOTE CONDENSER LINE SET INSTALLATIONIce MachineRemote Single Circuit CondenserLine Set*S500 JC0495RT-20-R404ART-35-R404

240 Part Number 80-1479-3 7/10SD1203WDice Cube, Self-Contained Water-cooled After Serial Number 110697023Characteristics may vary depending on operati

Part Number 80-1479-3 7/10 241SY1205WHalf Dice Cube, Self-Contained Water-cooled After Serial Number 110697023Characteristics may vary depending on op

242 Part Number 80-1479-3 7/10S1400 SERIESS1400 Self-contained air-cooledAll Self-Contained Air-cooled with a Manufacture Date Before 0905 (May 2009)C

Part Number 80-1479-3 7/10 243SD1402A Dice Cube, Self-Contained Air-Cooled With a Manufacture Date of 0905 (May 2009) or Later Characteristics may var

244 Part Number 80-1479-3 7/10SY1404A Half Dice Cube, Self-Contained Air-Cooled With a Manufacture Date of 0905 (May 2009) or Later Characteristics ma

Part Number 80-1479-3 7/10 245S1400 Self-contained Water-cooledAll Self-Contained Water-cooled with a Manufacture Date Before 0711 (November 2007)Char

246 Part Number 80-1479-3 7/10SD1403W Dice Cube, Self-Contained Water-Cooled With a Manufacture Date From 0711 to 0905 (November 2007 to May 2009)Char

Part Number 80-1479-3 7/10 247SY1405WHalf Dice Cube, Self-Contained Water-Cooled With a Manufacture Date From 0711 to 0905 (November 2007 to May 2009)

248 Part Number 80-1479-3 7/10SD1403W Dice Cube, Self-Contained Water-Cooled With a Manufacture Date of 0905 (May 2009) or LaterCharacteristics may va

Part Number 80-1479-3 7/10 249SY1405W Half Dice Cube, Self-Contained Water-Cooled With a Manufacture Date of 0905 (May 2009) or LaterCharacteristics m

Part Number 80-1479-3 7/10 25CALCULATING REMOTE CONDENSER INSTALLATION DISTANCESNOTE: Manitowoc warrants only complete new and unused remote packages.

250 Part Number 80-1479-3 7/10S1400 Remote Air-cooled CondenserAll Remote Condenser Air-cooled with a Manufacture Date Before 0905 (May 2009)Character

Part Number 80-1479-3 7/10 251SD1492N Dice Cube, Remote Condenser Air-Cooled With a Manufacture Date of 0905 (May 2009) or LaterCharacteristics may va

252 Part Number 80-1479-3 7/10SY1494N Half Dice Cube, Remote Condenser Air-Cooled With a Manufacture Date of 0905 (May 2009) or LaterCharacteristics m

Part Number 80-1479-3 7/10 253S1600 SERIESS1600AAll Self-Contained Air-cooledCharacteristics may vary depending on operating conditions.CYCLE TIMESFre

254 Part Number 80-1479-3 7/10S1600WAll Self-Contained Water-cooledCharacteristics may vary depending on operating conditions.CYCLE TIMESFreeze Time +

Part Number 80-1479-3 7/10 255S1600NAll Remote Air-cooled CondenserCharacteristics may vary depending on operating conditions.CYCLE TIMESFreeze Time +

256 Part Number 80-1479-3 7/10S1800 SERIESS1800 Self-contained air-cooledAll Self-Contained Air-cooled with a Manufacture Date Before 0910 (October 20

Part Number 80-1479-3 7/10 257SD1802ADice Cube, Self-Contained Air-cooled with a Manufacture Date After 0910 (October 2009)Characteristics may vary de

258 Part Number 80-1479-3 7/10SY1804AHalf Dice Cube, Self-Contained Air-cooled with a Manufacture Date After 0910 (October 2009)Characteristics may va

Part Number 80-1479-3 7/10 259S1800 Self-Contained Water-CooledAll Self-Contained Water-cooled with a Manufacture Date Before 0910 (October 2009)Chara

26 Part Number 80-1479-3 7/10Calculated Line Set DistanceThe maximum calculated distance is 150' (45.7 m).Line set rises, drops, horizontal runs

260 Part Number 80-1479-3 7/10SD1803WDice Cube, Self-Contained Water-cooled with a Manufacture Date After 0910 (October 2009)Characteristics may vary

Part Number 80-1479-3 7/10 261SY1805WHalf Dice Cube, Self-Contained Water-cooled with a Manufacture Date After 0910 (October 2009)Characteristics may

262 Part Number 80-1479-3 7/10S1800 Remote Air-cooled CondenserAll Remote Condenser Air-cooled with a Manufacture Date Before 0910 (October 2009)Chara

Part Number 80-1479-3 7/10 263SD1892NDice Cube, Remote Condenser Air-cooled with a Manufacture Date After 0910 (October 2009)Characteristics may vary

264 Part Number 80-1479-3 7/10SY1894NHalf Dice Cube, Remote Condenser Air-cooled with a Manufacture Date After 0910 (October 2009)Characteristics may

Part Number 80-1479-3 7/10 265S3300 SERIESSD3303W Self-Contained Water-CooledAll Dice Cube, Self-Contained Water-cooled Ice MachinesCharacteristics ma

266 Part Number 80-1479-3 7/10SY3305WAll Half Dice Cube, Self-Contained Water-cooled Ice MachinesCharacteristics may vary depending on operating condi

Part Number 80-1479-3 7/10 267DiagramsWiring DiagramsThe following pages contain electrical wiring diagrams. Be sure you are referring to the correct

268 Part Number 80-1479-3 7/10WIRING DIAGRAMS BEFORE ENERGY EFFICIENT & ENERGYSTAR MACHINESS320Self Contained - 1 Phase(48)RSCCLEANOFFICEBINSWITCH

Part Number 80-1479-3 7/10 269S300/S420/S450/S500 (after serial number 110074051) - Self Contained - 1 PhaseSV3137A(89)(55)(88)(42)High Pressure Cutou

Part Number 80-1479-3 7/10 27Maximum Line Set Distance FormulaStep 1 Measured Rise ____ X 1.7 = ______Calculated Rise(35 ft. Max)Step 2 Measured D

270 Part Number 80-1479-3 7/10S500 (before serial number 110074051)S600/S850/S1000/S1200- Self Contained- 1 PhaseSV3130(89) (55)(88)(42)High Pressure

Part Number 80-1479-3 7/10 271S850/S1000/S1200 - Self Contained - 3 PhaseSV3131(89)(55)(88)(42)High Pressure CutoutWater ValveHarvest ValveDump ValveW

272 Part Number 80-1479-3 7/10S500 Danfoss Compressor (after serial number 110074051) - Remote - 1 Phase(49)(47)COMPRESSOROVERLOAD INTERNAL{230V 50/60

Part Number 80-1479-3 7/10 273S500 (before serial number 110074051)/S600/S850/S1000/S1200 - Remote - 1 PhaseSV3158(89) (55)(88)(42)High Pressure Cutou

274 Part Number 80-1479-3 7/10S850/S1000/S1200 - Remote - 3 PhaseSV3131(89) (55)(88)(42)High Pressure CutoutWater ValveHarvest ValveDump ValveWater Pu

Part Number 80-1479-3 7/10 275S1400/S1600/S1800 - Self-Contained - 1 Phase(2)(1)RSCLEANOFFICE RUNCAPACITOR(50)(45)R(46)PTCR(AIR COOLED ONLY)FAN MOTOR

276 Part Number 80-1479-3 7/10S1400/S1600/S1800 - Self-Contained - 3 Phase(42)CONTROL BOARDCLEANOFFICEBINSWITCH(8)LOW D.C.VOLTAGEPLUGCONTACTORCOIL(56)

Part Number 80-1479-3 7/10 277S1400/S1600/S1800 - Remote - 1 PhaseR(45)R(46)PTCR(44)(59)CLEANLEFT BINRIGHT BINRMT BINWTR PROBEICE PROBEHARVSL-1SL-2(6)

278 Part Number 80-1479-3 7/10S1400/S1600/S1800 - Remote - 3 Phase(42)ICE THICKNESSPROBEWATER LEVELPROBEHIGH PRESSURECUTOUT(89)(88)T3L2L3COMPRESSORT1T

Part Number 80-1479-3 7/10 279WIRING DIAGRAMS FOR ENERGY EFFICIENT & ENERGYSTAR MACHINESS300/S420/S450/S500Self-Contained - 1 PhaseCaution: Discon

28 Part Number 80-1479-3 7/10CONNECTING A LINE SET1. Remove the dust caps from the line set, condenser and ice machine.2. Apply refrigeration oil to t

280 Part Number 80-1479-3 7/10S600/S850/S1000/S1200Self-Contained - 1 PhaseCaution: Disconnect Power Before Working on Electrical CircuitryL1HIGH PRES

Part Number 80-1479-3 7/10 281S850/S1000/S1200Self-Contained - 3 PhaseCaution: Disconnect Power Before Working on Electrical CircuitryL1HIGH PRESSUREC

282 Part Number 80-1479-3 7/10S1400/S1800Self-Contained - 1 Phase(2)(1)RSCLEANOFFICE RUNCAPACITOR(50)(45)R(46)3 TERMINAL PTCR(AIR COOLED ONLY)FAN MOT

Part Number 80-1479-3 7/10 283S1400/S1800Self-Contained - 3 Phase(42)CONTROL BOARDCLEANOFFICEBINSWITCH(8)LOW D.C.VOLTAGEPLUGCONTACTORCOIL(56)TERMINATE

284 Part Number 80-1479-3 7/10S3300Water-Cooled - 3 phaseAIR PUMP 4AIR PUMP 3AIR PUMP 2AIR PUMP 1HARVESTSOLENOID 4HARVESTSOLENOID 3HARVESTSOLENOID 2HA

Part Number 80-1479-3 7/10 285S500Remote - 1 PhaseCaution: Disconnect Power Before Working on Electrical CircuitryL1HIGH PRESSURECUTOUT(89)(88)CONTROL

286 Part Number 80-1479-3 7/10S600/S850/S1000/S1200Remote - 1 PhaseCaution: Disconnect Power Before Working on Electrical CircuitryL1HIGH PRESSURECUTO

Part Number 80-1479-3 7/10 287S850/S1000/S1200Remote - 3 PhaseCaution: Disconnect Power Before Working on Electrical CircuitryL1HIGH PRESSURECUTOUT(89

288 Part Number 80-1479-3 7/10S1400/S1800Remote - 1 Phase(59)CLEANLEFT BINRIGHT BINRMT BINWTR PROBEICE PROBEHARVSL-1SL-2(6)(2)(1)(25)(26)L2(9)(8)(42)C

Part Number 80-1479-3 7/10 289S1400/S1800Remote - 3 Phase(42)ICE THICKNESSPROBEWATER LEVELPROBEHIGH PRESSURECUTOUT(89)(88)T3L2L3COMPRESSORT1T2CONTACTS

Part Number 80-1479-3 7/10 29Component IdentificationS Model Single Evaporator ModelsWATER CURTAINCONTROL BOXWATER DISTRIBUTION TUBETOGGLE SWITCHWATER

290 Part Number 80-1479-3 7/10Electronic Control BoardSingle and Twin Evaporator Without Test ButtonN 115VL2 208-230VPRIMARY POWERSUPPLYAC LINE VOLTAG

Part Number 80-1479-3 7/10 291Single and Twin Evaporator With Test ButtonN 115VL2 208-230VPRIMARY POWERSUPPLYAC LINE VOLTAGEELECTRICAL PLUGMAIN FUSE(7

292 Part Number 80-1479-3 7/10Quad Evaporator Ice MachinesICE PROBEWATER LEVEL PROBEHARVEST VALVESFUSE 7ACLEAN (YELLOW)HARVEST (RED)WATER LEVEL (GREEN

Part Number 80-1479-3 7/10 293Refrigeration Tubing SchematicsSELF-CONTAINED AIR- ORWATER -COOLED MODELSS300/S320/S420/S450/S500/S600/S850/S1000/S1200S

294 Part Number 80-1479-3 7/10S3300xxxxxEVAPORATOR 1EVAPORATOR 2EVAPORATOR 3 EVAPORATOR 4WATER-COOLEDCONDENSERSCROLLCOMPRESSORRECEIVERHARVEST PRESSURE

Part Number 80-1479-3 7/10 295REMOTE MODELSS500/S600/S850/S1000S1400/S1600/S1800XXHEATEXCHANGEREVAPORATORSOLENOIDLINELIQUIDCHECK VALVESERVICERECEIVERC

296 Part Number 80-1479-3 7/10This Page Intentionally Left Blank

Part Number 80-1479-3 7/10 297This Page Intentionally Left Blank

298 Part Number 80-1479-3 7/10

Safety NoticesAs you work on Manitowoc equipment, be sure to pay close attention to the safety notices in this handbook. Disregarding the notices may

30 Part Number 80-1479-3 7/10S Model Quad Evaporator ModelsWATER PUMPSWATER LEVEL PROBEEVAPORATORSWATER TROUGHCONTROL BOXICE DAMPERS

Manitowoc Ice2110 South 26th Street, P.O. Box 1720Manitowoc, WI 54221-1720, USAPh: 920-682-0161 Fax: 920-683-7589Visit us online at: www.manitowocice

Part Number 80-1479-3 7/10 31MaintenanceGeneralClean and sanitize the ice machine every six months for efficient operation. If the ice machine require

32 Part Number 80-1479-3 7/10Cleaning / Sanitizing ProcedureCLEANING PROCEDUREIce machine cleaner is used to remove lime scale and mineral deposits. I

Part Number 80-1479-3 7/10 33Step 3 Remove all ice from the bin.Step 4 Place the toggle switch in the CLEAN position. The water will flow through

34 Part Number 80-1479-3 7/10PARTS REMOVAL FOR CLEANING/SANITIZINGSingle Evaporator Ice MachinesA. Remove the water curtain• Gently flex the curtain

Part Number 80-1479-3 7/10 35Quad Evaporator Ice MachinesA.Remove the water trough shield.• Grasp the water trough shield in the center and the left e

36 Part Number 80-1479-3 7/10ABCDE

Part Number 80-1479-3 7/10 37Step 7 Mix a solution of cleaner and warm water. Depending upon the amount of mineral buildup, a larger quantity of sol

38 Part Number 80-1479-3 7/10Step 12 Use 1/2 of the sanitizer/water solution to sanitize all foodzone surfaces of the ice machine and bin (or dispen

Part Number 80-1479-3 7/10 39Step 15 Reapply power to the ice machine and place the toggle switch in the CLEAN position.Step 16 Wait until the wat

NOTE: Text set off as a Note provides you with simple, but useful, extra information about the procedure you are performing.Read These Before Proceedi

40 Part Number 80-1479-3 7/10Procedure to Clean Heavily Scaled Ice MachinesIce machines that are heavily scaled or have not been cleaned on a regular

Part Number 80-1479-3 7/10 41Ice machine cleaner is used to remove lime scale and mineral deposits. Ice machine sanitizer disinfects and removes algae

42 Part Number 80-1479-3 7/10Step 5 Wait until the clean cycle is complete (approximately *35 minutes). then place the toggle switch in the OFF posi

Part Number 80-1479-3 7/10 43PARTS REMOVAL FOR CLEANING/SANITIZINGSingle Evaporator Ice MachinesA. Remove the water curtain• Gently flex the curtain i

44 Part Number 80-1479-3 7/10E. Remove the water level probe• Pull the water level probe straight down to disengage.• Lower the water level probe unti

Part Number 80-1479-3 7/10 45A.B.C.D.E.F.G.

46 Part Number 80-1479-3 7/10Quad Evaporator Ice MachinesA. Remove panels• Remove both front panels• Remove top panelB. Remove front evaporator shield

Part Number 80-1479-3 7/10 47F. Remove distribution tubes.• Distribution tube thumbscrews are retained to prevent loss. Loosen thumbscrews but do not

48 Part Number 80-1479-3 7/10AABCDEFGHI

Part Number 80-1479-3 7/10 49Step 7 Mix a solution of cleaner and warm water. Depending upon the amount of mineral buildup, a larger quantity of sol

Part Number 80-1479-3 7/10 5Table of ContentsGeneral InformationModel Numbers . . . . . . . . . . . . . . . . . . . . . 9How to Read a Model Number .

50 Part Number 80-1479-3 7/10bin (or dispenser). Use a cloth or sponge to liberally apply the solution. When sanitizing, pay particular attention to t

Part Number 80-1479-3 7/10 51Step 19 Use 1/2 of the sanitizer/water solution to sanitize all removed components. Use a cloth or sponge to liberally

52 Part Number 80-1479-3 7/10Ice Thickness Probe & Water Level ProbeClean the probes using the following procedure.1. Mix a solution of Manitowoc

Part Number 80-1479-3 7/10 53Water Inlet ValveThe water inlet valve normally does not require removal for cleaning. Refer to “Water System Checklist”

54 Part Number 80-1479-3 7/10Water Dump ValveThe water dump valve normally does not require removal for cleaning. To determine if removal is necessary

Part Number 80-1479-3 7/10 55NOTE: During cleaning, do not stretch or damage the spring.1. Remove the tubing from the dump valve by twisting the clamp

56 Part Number 80-1479-3 7/10Drain Line Check ValveThe drain line check valve (not used on all models) should be inspected and cleaned, whenever the i

Part Number 80-1479-3 7/10 57Removal from Service/WinterizationGeneralSpecial precautions must be taken if the ice machine is to be removed from servi

58 Part Number 80-1479-3 7/10WATER-COOLED ICE MACHINES1. Perform steps 1-6 under “Self-Contained Air-Cooled Ice Machines.”2. Disconnect the incoming w

Part Number 80-1479-3 7/10 59Sequence of OperationSelf Contained Air or Water CooledSINGLE & QUAD EVAPORATOR MODELSNOTE: The toggle switch must be

6 Part Number 80-1479-3 7/10Removal from Service/Winterization . . . 57Self-Contained Air-Cooled Ice Machines 57Water-Cooled Ice Machines . . . . .

60 Part Number 80-1479-3 7/10Freeze Sequence3. PrechillThe compressor lowers the temperature of the evaporator(s) before the water pump is energized.

Part Number 80-1479-3 7/10 61Harvest Sequence5. Water PurgeThe air compressor (when used) and the harvest valve(s) open at the beginning of the water

62 Part Number 80-1479-3 7/106. HarvestThe air compressor (when used) remains energized and the harvest valve(s) remains open. The refrigerant gas war

Part Number 80-1479-3 7/10 63Automatic Shut-Off7. Automatic Shut-OffWhen the storage bin is full at the end of a harvest sequence, the sheet of cubes

64 Part Number 80-1479-3 7/10Safety TimersThe control board has the following non-adjustable safety timers:• The ice machine is locked into the freeze

Part Number 80-1479-3 7/10 65Safety LimitsSafety limits are stored and indicated by the control board after three cycles. The number of cycles require

66 Part Number 80-1479-3 7/10Safety Limit Stand-By Mode (Quad Evaporators Only)The first time a safety limit shut down occurs, (three consecutive long

Part Number 80-1479-3 7/10 67Warm Water Rinse CycleSingle evaporator models only - Closing the back of the evaporator allows ice to build up on the re

68 Part Number 80-1479-3 7/10Self Contained Air & Water-Cooled Single Evaporator Model Energized Parts Chart Ice MakingSequence ofOperationWaterPu

Part Number 80-1479-3 7/10 69Harvest Sequence5. Water PurgeOn On On30 sec.Off15 sec.OnOn On OnMay CycleOn/OffFactorySet at 45 Seconds6. HarvestOff On

Part Number 80-1479-3 7/10 7Component Check ProceduresElectrical Components . . . . . . . . . . . . . . . 135Main Fuse . . . . . . . . . . . . . . .

70 Part Number 80-1479-3 7/10Self Contained Water-CooledQuad Evaporator Model Energized Parts Chart Ice MakingSequence ofOperationWaterPumpsHarvestVal

Part Number 80-1479-3 7/10 71Harvest Sequence5. Water PurgeOn On OnOnfrom 30-45 secondsOn On OnFactorySet at 30 Seconds6. HarvestOff On On Off Off On

72 Part Number 80-1479-3 7/10REMOTESSingle Evaporator ModelsNOTE: The toggle switch must be in the ice position and the water curtain must be in place

Part Number 80-1479-3 7/10 732. Refrigeration System Start-UpThe compressor and liquid line solenoid valve energize after the 45 second water purge an

74 Part Number 80-1479-3 7/10Freeze Sequence3. PrechillThe compressor is on for 30 seconds (60 seconds initial cycle) prior to water flow, to prechill

Part Number 80-1479-3 7/10 75Harvest Sequence5. Water PurgeThe water pump continues to run, and the water dump valve energizes for 45 seconds to purge

76 Part Number 80-1479-3 7/10Automatic Shut-Off7. Automatic Shut-OffWhen the storage bin is full at the end of a harvest sequence, the sheet of cubes

Part Number 80-1479-3 7/10 77Remote Air-CooledSingle Evaporator Model Energized Parts Chart Ice MakingSequence ofOperationWaterPumpHarvestValve(Left)H

78 Part Number 80-1479-3 7/10Harvest Sequence5. Water PurgeOn On OnOnAfter 35 sec.30 sec.Off15 sec.OnOn On On OnFactorySet at 45 Seconds6. Harvest Off

Part Number 80-1479-3 7/10 79This Page Intentionally Left Blank

8 Part Number 80-1479-3 7/10ChartsCycle Times/24-Hour Ice Production/Refrigerant Pressure Charts . . . . . . . . . . 191S300 Series . . . . . . . . .

80 Part Number 80-1479-3 7/10This Page Intentionally Left Blank

Part Number 80-1479-3 7/10 81TroubleshootingSafety LimitsIn addition to standard safety controls, the control board has built in safety limit controls

82 Part Number 80-1479-3 7/10QUAD EVAPORATOR MACHINES ONLYWhen a safety limit condition causes the ice machine to stop, the harvest light on the contr

Part Number 80-1479-3 7/10 83Safety Limit Stand-By Mode:The first time a safety limit shut down occurs, (three consecutive long freeze or harvest cycl

84 Part Number 80-1479-3 7/10ANALYZING WHY A SAFETY LIMIT STOPPED THE ICE MACHINEAccording to the refrigeration industry, a high percentage of compres

Part Number 80-1479-3 7/10 85SAFETY LIMIT #1Water System1. Water supply to machine is being interrupted2. Water leaking down the drain during freeze (

86 Part Number 80-1479-3 7/10SAFETY LIMIT #2Water System1. Ice thickness control probe is dirty causing a premature harvest with no ice on the plate.

Part Number 80-1479-3 7/10 87SAFETY LIMIT #3Water System1. Water supply to machine is being interrupted2. Water leaking down the drain during freeze (

88 Part Number 80-1479-3 7/10Control Board TestingAll replacement S Model control boards and ice machines with serial numbers larger than 110924847 ha

Part Number 80-1479-3 7/10 89Troubleshooting By SymptomThe troubleshooting procedures follow flow charts. There are four symptoms, the symptom that yo

Part Number 80-1479-3 7/10 9General InformationModel NumbersThis manual covers the following models: NOTE: Model numbers ending in 3 indicate a 3 ph

90 Part Number 80-1479-3 7/10SYMPTOM #1 ICE MACHINE WILL NOT RUNIce Machine Stops Running or Has a History of Shutting DownYESYESNONOYESNOControl boar

Part Number 80-1479-3 7/10 91YESYESNONOAreWater Curtain/Ice Dampersin place?YESYESSL1/Harvest (once)Run machine &check for Normal OperationRefer t

92 Part Number 80-1479-3 7/10COMPRESSOR ELECTRICAL DIAGNOSTICSThe compressor does not start or will trip repeatedly on overload.Check Resistance (Ohm)

Part Number 80-1479-3 7/10 93CHECK MOTOR WINDINGS TO GROUNDCheck continuity between all three terminals and the compressor shell or copper refrigerati

94 Part Number 80-1479-3 7/10SYMPTOM #2 LOW PRODUCTION, LONG FREEZEIce Machine has a Long Freeze Cycle. Ice Formation is Thick or Thin Ice Fill on Top

Part Number 80-1479-3 7/10 95PROCEDUREStep 1 Complete the “Operation Analysis” column.Read down the left “Operational Analysis” column. Perform all

96 Part Number 80-1479-3 7/10SYMPTOM #2 - FREEZE CYCLE REFRIGERATION SYSTEM OPERATIONAL ANALYSIS TABLESS MODELS SINGLE EXPANSION VALVEOperational Anal

Part Number 80-1479-3 7/10 97Freeze Cycle Suction Pressure_______ ______ _____1 minute Middle EndIf suction pressure is High or Low

98 Part Number 80-1479-3 7/10Wait 5 minutes into the freeze cycle.Compare temperatures of compressor discharge line and harvest valve inlet.The harves

Part Number 80-1479-3 7/10 99Freeze Cycle Refrigeration System Operational Analysis TablesS MODELS DUAL EXPANSION VALVEOperational Analysis 1 2 3 4Ice