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1. RUN CAPACITOR FAN MOTOR jon cer t d L SOWO RUN CAPACITOR iam cournesson RUN CAPACITOR E 16 uno 5 Kote i rans TIL ay Tut mma Qul HPC I 1 up se ae us rem Bes og 852 WIRE WUNBER DESIGNATION Sw XT SII FEES Em UU Sb EE TAB RECEPTACLE DISCONNECT CONTROL BOARD CURTAIN SWITCH w BULKHEAD MULTIPIN CONNECTOR COMPRESSOR SN a ELECTRICAL y COMPRESS Ses BOK SIBE gt gt COMPARTMENT SEE SERIAL PLATE FOR VOLTAGE vapor E ORAS TERMINAL BLOC re DIAGRAM sini DOR ING CYCLE BLUE BLACK creans 5 PURPLE nigi aes tied Low PRES 498 75 venon Q TRANSFORMER ORANGE ew COMPRESSOR CRANKCASE A CONTACTOR FAN MOTOR CONTACTOR CONTACTS a E CONDENSING UNIT WITH TWO FANS ONLY te COOL VAPOR DEFROST CONDENSING UNIT 208 230 60 3 CAUTION DISCONNECT POWER BEFORE WORK INGON ELECTRICAL CIRCUITRY DIAGRAM SHOWN DURING FREEZE CYCLE SEE SERIAL PLATE FOR VOLTAGE m zoan TERMINAL BLOCK GROWN 12 uli iei Lm PURPLE PURPLE no BLUE TERRY HIGH PRES sack Lor Pres
2. SEE SE L PLATE FOR VOLTAGE NE TERMINAL BLOCK GROUND 12 13 D BLUE uPc2 BLACK LPCY High PRES LOW PRES UTOU ii ELLO CONTACTOR TRANSFORMER ORANGE aac ao A AE as COMPRESSOR FAN MOTOR CONTROL RUN CAPACITOR pes Bee l L CONTROL RUN CAPACITOR 000008476 226 Part Number STH026 8 12 Electronic Control Board Bin Bin Switches Thermostat USB ITI Display Light Thermistors coo Micro Light Clean Light n Harvest Light 8888 qp SL Light 2 9 2 Light oump vane Left Bin Switch Light Transformer Right Bin Switch Light Water Level Probe Light Display Ice Thickness Probe Light RS485 LII 5 RT Harvest Bin LED o Battery g Compresso Luminice Water LT Harvest Level Fuse Probe O Relay Lights Pump Ace Water Pump J Water Compressor Remote CVD v Thicknessfo g Dump lt IO Probe o 12 wc IO ueci Not Used HPC2 CVD wee Contactor
3. I SERIES TWIN EVAP ICE MACHINES RH SEE SENIAL PLATE FOR VOLTAGE QUIETQUBE PHASE CAUTION DISCONNECT POWER BEFORE WORKING ON ELECTRICAL CIRCUITRY LI 462 En te L2 OR me en E ten nm 060 to isn Li HARV E m en 155 DUMP a SOLENOID Pa PROBE rust mm i 3 I WATER t WATER LEVEL PUMP teans Ly t on 58 83 80 fea LIQUID P tine ts usi m Is vo viser a T Eu og n gii WIRE GER DESIGNATION Eon Ben DIIS IM EE Ii us 1 pisconmcct CONTROL BOARD CURTAIN sw CH acu 8 gt gt BULKHEAD MULTIPIN CONNECTOR BIN ELECTRICAL evum Wes gt gt m SEE SERIAL PLATE FOR VOLTAGE Li Go CON ERFT IONE DISCONNECT PONER BEFORE 358 i WORKING ON ELECTRICAL CIRCUITRY 2 TERMINAL BLOCK CYCLE cns mm BLUE E it aLack rms YELLOW YELLOW 1747 498 75 TRANSFORMER E ORANGE Un COMPRESSOR cRAMKCASE FREE TOM D as CONTACTOR FAR MOTOR CONTACTOR A CS 5 7 RUN CAPACITOR TAK oro ES NG UA Sors Our fan crat RUN CAPACITOR un un soveRLOAD cooxcssm xin rcr TOOL VAPOR DEFROST SEE SERIAL PLATE FOR voL TAGE DISCONNECT PONER Bef Oe 3 WORKINGON ELECTRICAL CIRCUITRY TERMINAL BLOCK i am DIANAN SHONN DURING ELE CICLE w e Lack mm BLUE Bon wih as tnt
4. Air Temp Freeze Time coins Water Temperature F C En F C 50 10 70 21 90 32 20 to 70 29 to 21 10 7 11 6 11 7 12 8 12 5 13 7 80 27 11 0 12 1 12 5 13 7 13 4 14 6 90 32 124 13 2 129 140 144 157 7925 100 38 12 5 13 7 14 4 15 7 15 6 17 0 110 43 13 4 14 6 15 6 17 0 16 9 18 4 1Times in minutes Dice cube 24 HOUR ICE PRODUCTION Air Temp Water Temperature F C Entering Condenser 1 70 21 32 EC 50 10 0 90 3 0070 1835 1685 1590 80 27 1780 1590 1495 90 32 1640 1555 1400 100 38 1590 1400 1305 110 43 1495 1305 1210 1 slab weight of one harvest cycle 15 5 Ib to 16 75 Ib 7 75 8 38 Ib per evaporator 7 0 kg to 7 6 kg 3 5 to 3 8 kg per evaporator 230 50 1 is approximately 1296 lower than 230 60 1 OPERATING PRESSURES Air Temp Freeze Cycle Harvest Cycle Entering Discharge Suction Discharge Suction Condenser Pressure Pressure Pressure Pressure c psig psig psig psig 2010 50 200 250 45 28 125 140 70 80 70 21 200 260 50 28 125 160 70 80 80 27 220 275 50 28 130 180 70 90 90 32 260 315 58 30 150 190 70 100 100 38 300 360 65 30 160 200 80 110 110 43 320 400 70 30 170 210 90 120 220 Part Number STH026 8 12 Diagrams Wiring Diagrams The following pages contain electrical wiring diagrams Be sure you are referring to the correct diagram for the ice machine you are servicing Warning
5. hot check the hot water line check valves in other store equipment Water filtration is plugged if used Install new water filter Water dump valve leaking during the Freeze cycle Clean or replace dump valve as needed Vent tube is not installed on water outlet drain e See Installation Instructions Hoses fittings etc are leaking water Repair or replace as needed Water fill valve is stuck open or closed Clean or replace as needed Water is leaking out of the sump trough area Stop the water loss Uneven water flow across the evaporator Clean the ice machine Plastic extrusions and gaskets are not secured to the evaporator e Remount replace as needed 134 Part Number STHO026 8 12 QuietQube Models Ice Formation Pattern Evaporator ice formation pattern analysis is helpful in ice machine diagnostics Analyzing the ice formation pattern alone cannot diagnose an ice machine malfunction However when this analysis is used along with Manitowoc s Freeze Cycle Refrigeration System Operational Analysis Tables it can help diagnose an ice machine malfunction Any number of problems can cause improper ice formation Important Keep the water curtain splash shields and ice dampers in place while checking the ice formation pattern to ensure no water is lost 1 Normal Ice Formation Ice forms across the entire evaporator surface At the beginning of the Freeze cycle it may appea
6. 98 Part Number STHO026 8 12 Bin USB Connector Bin Switches Thermostat USB Display Light Thermistors LLLI 2559 f Oo Micro Light 00000 m Clean Light n 50 t Harvest Light 88088 51 1 Light 2 H t SL2 Light H 5 Dump Valve l eh t T4 H a Left Bin Switch Light Transformer Right Bin Switch Light Water Level Probe Light Display Ice Thickness Probe Light m RS485 Lr XT 59 3 RT Harvest Battery Jg CIO Water LT Harvest Level Fuse Probe n Relay Lightsg Pump Control Board 10 Follow the on screen instructions A Insert Drive Insert the flash drive into the USB port on the ice machine s control board B Press Check Press the Checkmark C Wait For Comp Wait approximately 5 to 10 minutes for the Firmware upgrade to complete 11 Upgrade Complete will appear on the display 12 Verify the new firmware version loaded by navigating to Menu Machine information Main Software Version and verify the firmware version number Part Number STH026 8 12 99 EXPORTING DATA TO A FLASH DRIVE Data can be copied from the control board memory to a flash drive and used to transfer setup and or cycle data to a replacement control board
7. ee SU T Refer to Safety Limit 42 long harvest cycle UE ee DIAGNOSING A CONDENSING UNIT THAT WILL NOT RUN If the ice machine water pump is not energized refer to Diagnosing an Ice Machine that Will Not Run Also see All ICVD Models Interconnecting wiring on page 222 1 Verify primary voltage is supplied to ice machine condensing unit and the fuse circuit breaker is closed Test for 24 vac at terminals C amp V Replace transformer if 24 vac is not present Verify the low pressure control is closed by testing for 24 vac terminals C amp LPC Verify wires are intact and ice machine is calling for cooling by testing for 24 vac terminals C amp HPC1 Verify the high pressure control is closed by testing for 24 vac at the contactor coil terminals Verify the contactor contacts are closed and line voltage is present across all lines Refer to compressor diagnostics Part Number STH026 8 12 121 SYMPTOM 2 LOW PRODUCTION LONG FREEZE CYCLE Ice Machine has a Long Freeze Cycle Ice Formation is Thick or Thin ice fill at Inlet or Outlet of Evaporator or Low Production How to Use the Freeze Cycle Refrigeration System Operational Analysis Table GENERAL These tables must be used with charts checklists and other references to eliminate refrigeration components not listed on the tables and external items and problems which can cause good refrigeration c
8. 801 Single amp Twin Evaporator QuietQube Models Energized Parts Chart Ice Making Contactor Water Liquid Line Refrigeration Lenath of Sequence of Pump vaive a Air Pumps Wator Inlet Dump Solenoid Compressor amp puc 9 Operation Valve Valve Condenser Fan Ime Start Up Initial or After Auto Shut Off On Off Off Off On Off Off 45 Seconds 1 Water Purge 2 Refrigeration System Start up Off On On Off Off Off Off 5 Seconds Pressure Equalization Compressor Start Off On On Off Off On On 5 Seconds Freeze Sequence Initial Start Up is 60 ay cycle Seconds Off Off Off On Off Off On On 30 Seconds 3 Pre chill thereafter a Dreez Cycles Off Until Ice contact On Off Off then On Off On On with ice thickness Off two probe more times ZL 8 YCOHLS JequinN 601 Single amp Twin Evaporator QuietQube Models Energized Parts Chart Continued Ice Making Wai Ead Lenath of ater iquid Line efrigeration Sequence of Pump valve s AirPumps Waar inlet Dump Solenoid Compressor amp m i alve alve ondenser Fan Operation Motor Harvest Sequence On On On Off On On On Factory set at 45 Seconds 5 Water Purge 6 Harvest Off On On Off Off On On Bin switch 1 activation Until 3 min delay 7 Automatic Off Off Off Off Off Off Off expires amp alll bin Shut Off Switches re close The condenser fan mot
9. 64 Alerts and Messages 66 Main Menu 67 Machine Info Menu 68 Reset Password To Factory Defaults 68 Set Up Menu 69 Language 70 Time amp Date 70 Time Configuration 72 Units er cet ERG ED 72 Ice Clarity 73 LCD Brightness 73 Password Entry 74 Clean Minder 75 IAuCS Runtime 76 Air Filter evict acct ALLIES 76 Water Filter 77 Luminlce reminder 78 Ice Bin Level Sensor 79 USB Setup 79 10 Part Number STH026 8 12 Energy Saver Menu 80 Ice Program 81 Water Miser 82 Statisties 2 er or eee TEES 82 Factory Defaults 83 Service Menu 84 Data History 86 Real Time Data 87 Diagnostics 89 Manual Harvest 90 Replace Control Board 90 USB Setups 90 Event Log Menu 91 Event Log pls 92 USB Flash Drive Specifications and Format MING eee EROR 96 Upgrading Firmware with a Flash Drive or Transferring Setup Data To Multiple Ma CHINES Ee e ERN 98 Exporting Data to a Flash Dr
10. 87 9 0 LL cL vL L p9J002 1Iv PNOO 40 8 22 eur pnb 1 eDueuosiq 40 5944 09 4ojejode 3 puz 10 40 jno 151 4ojeJode 3 ul JojeJode 3 uondioseg 291 NOILVOOT YOSNAS Part Number STH026 8 12 182 SYMPTOM Alert icon on the display is flashing and the alert indicates a T1 T2 T3 or T4 Fault CHECK PROCEDURE Press the Menu button Scroll down to Service and press right arrow Scroll down to Diagnostics and press right arrow Scroll down to Temp Sensors and press right arrow to display thermistor temperature readings NOTE An open thermistor will display 22 F 30 C and a shorted thermistor displays 475 F 246 C Thermistor Test 1 Disconnect thermistor from control board and measure resistance 2 Measure temperature at the thermistor 3 Compare measured resistance temperature readings to resistance temperature relationship chart A Within 10 of the published resistance value Thermistor is good B Not within 10 of the published resistance value Thermistor is defective Control Board Test 1 Disconnect thermistor from control board The display temperature reading dropping to 22 F
11. NI vELLow LI YELLOW 1747 98 75 TRANSFORMER gs W cunc Q REE Ie us opel Jere 199 come sson D M T FP l WITH TIO FANS ONLY adno RUN CAPACITOR m TIS sf crete Part Number 5 26 8 12 225 ICVD2095 QuietQube Remote Air cooled 3 Ph COOL VAPOR DEFROST SEE SERIAL PLATE FOR VOLTAGE FAN CYCLE CONTROL FAN MOTOR RUN CAPACITOR OVERLOAD RUN CAPACITOR un COMPRESSOR GONDENSING SEAT MESSIS AND 230 5071 555 CAUTION DISCONNECT POWER BEFORE WORKING 060 N ON ELECTRICAL CIRCUITRY TERMINAL BLOCK siena SHOWN FREEZE crue T og g n BLUE L aL BLACK cms RED BLUE 987 987 x igi bes TOU Lon Paes N E ln YELLOW Lh Contac TOR TRANSFORMER ORANGE com D dE ONG A T n tesi CONTACTOR MOTOR CONTACTOR FAN CYCLE RUN CAPACITOR T CONDENSING UNIT WITH TWO FANS ONLY o 3 TERMINAL PTCR 49 COOL VAPOR DEFROST CONDENSING UNIT 208 230 60 3 CAUTION DISCONNECT POWER BEFORE WORKING 7 WIRE NUMBER DESIGNATION MARKED AT EACH WIRE END RECEPTACLE DISCONNECT n BELL CRIMP ON ELECTRICAL CIRCUITRY
12. Air Temp Freeze Time iru Water Temperature F C i big F C 50 10 70 21 90 32 20 to 70 11 5 12 6 15 5 14 4 14 3 15 6 29 to 21 80 27 13 2 14 4 14 7 16 0 16 5 18 0 90 32 14 3 15 5 16 4 17 8 17 7 193 7525 100 38 15 4 16 8 17 7 19 3 19 3 20 9 110 43 11 5 12 6 15 5 14 4 14 3 15 6 1Times in minutes Dice cube 24 HOUR ICE PRODUCTION Air Temp Water Temperature F C Entering Condenser 50 10 70 21 90 32 20 to 70 1715 1520 1410 29 to 21 90 32 1520 1375 1240 100 38 1415 1250 1160 110 43 1320 1160 1075 slab weight of one harvest cycle 15 5 Ib to 16 75 Ib 7 75 8 38 lb per evaporator 7 0 kg to 7 6 kg 3 5 to 3 8 kg per evaporator 230 50 1 is approximately 1296 lower than 230 60 1 OPERATING PRESSURES Air Temp Freeze Cycle Harvest Cycle Entering Discharge Suction Discharge Suction Condenser Pressure Pressure Pressure Pressure TC psig psig psig psig 20 to 50 215 250 60 30 140 155 65 90 29 to 10 70 21 215 260 60 33 140 155 65 90 80 27 240 280 60 34 145 165 65 95 90 32 250 295 60 35 150 170 65 95 100 38 290 365 60 36 160 190 75 100 110 43 300 380 60 37 170 200 80 110 Part Number STH026 8 12 219 12170C ICVD2195 Remote Air Cooled Condensing Unit Model Characteristics vary depending on operating conditions CYCLE TIMES Freeze Time Harvest Time Total Cycle Time Freeze Time Harvest Time Cycle Time
13. QuietQube Models Ice Formation Pattern on page 135 Top Half or Left Bottom Half or Right Ice formation is extremely thin on outlet of one evaporator or No ice formation on top of one evaporator Ice formation is normal or Ice formation is extremely thin on outlet of one or both evaporators or No ice formation on one or both evaporators Ice formation is normal or Ice formation is extremely thin on the inlet of one evaporator Or No ice formation on one evaporator Ice formation is normal or No ice formation on both evaporators 821 71 8 920 15 JequinN Twin Expansion Valve 11470 1870 2170 Models Operational Analysis 1 2 3 4 Safety Limits Refer to Analyzing Stops on Stops on Stops on Stops on Safety Limits page 113 to safety limit safety limit safety limit safety limit eliminate all non refrigeration 1or2 1 2 1or2 1 problems Freeze Cycle Discharge Pressure 1 minute Middle End If discharge pressure is High or Low refer to Freeze cycle high or low discharge pressure problem checklist page 139 amp page 140 to eliminate problems and or components not listed on this table before proceeding Freeze Cycle Suction Pressure 1 minute Middle End If suction pressure is High or Low refer to Freeze cycle high or low suction pressure problem checklist page 143 to eliminate problems and or components not liste
14. 1 4 to 2 5 KO s Reverse leads Connect black meter lead to the red wire red meter lead to the black wire Normal readings 1 2 to 1 5 KO s Pass Ohm values are within range Check control board voltage at the ice thickness probe connection Fail Replace ice thickness probe 6 Check control board voltage e Set VOM to DC voltage scale Check voltage across the top and bottom pin Normal readings 3 25 to 3 35 VDC Pass Control board voltage is normal Fail Replace control board 174 Part Number STH026 8 12 ICE MACHINE DOES NOT CYCLE INTO HARVEST Will not harvest symptoms Lowice production Thick ice in bin Large sheet of ice on evaporator Harvest cycle doesn t start Freeze cycles are longer than published cycle times If ice is on the evaporator initiate a manual harvest cycle by performing the following keystrokes Press Menu Scroll down to Service and press right arrow Scroll down to Manual Harvest and press right arrow A new freeze cycle will start after the manual harvest cycle is complete NOTE Ice must be off the evaporator before starting the procedure 1 Disconnect the ice thickness probe from the control board then reboot the control board by disconnecting and reconnecting line voltage to the ice machine 2 Wait six minutes into the freeze cycle timing starts when the water pump energizes Ice Machine cyc
15. Code Description E01 Long Freeze Cycle E02 Long Harvest Cycle E03 Input Power Loss E04 High Condenser Temperature E05 High Pressure Control Opened E06 Spare E07 Starving TXV Single Evaporator or Low On Charge E08 TXV Fault Single or Dual Circuit Evaporators E09 Flooding Evaporator Fault Single Evaporator Single Circuit E10 Flooding Evaporator Fault Dual TXV Dual Circuit E11 Refrigeration Fault E12 Curtain Switch Fault E Board Open more than 12 hours Board after Revision 4 017 Open more than 24 hours E13 Spare E14 Spare E15 Fan Cycle Control Fault Lo Liquid Line Temperature E16 Remote Condensing Unit Fault ICVD Only E17 Spare E18 Spare E19 Ice Thickness Probe Fault E20 Water System Fault E21 T1 Temperature Sensor Issue E22 T2 Temperature Sensor Issue E23 T3 Temperature Sensor Issue E24 T4 Temperature Sensor Issue E25 Bin Level Probe Low Sensor Fault E26 Bin Level Probe Medium Sensor Fault E27 Bin Level Probe High Sensor Fault E28 AuCS E29 USB Communication Fault E30 USB Download Fault E31 Safe Mode 2 RS485 Communication Fault E33 KeyBoard Fault E34 Display Fault 92 Part Number STH026 8 12 920H LS JequinN Hed 56 Event Log Detail Detail Event Log Service Definition E Log Display Text Error Description Defi n E01 Long Freeze Long Freeze 6 consecutive
16. Defective head pressure control valve Remote Other Overcharged Non condensable air in system Wrong type of refrigerant Non Manitowoc components in system High side refrigerant lines component restricted Part Number STH026 8 12 139 QUIETQUBE MODELS FREEZE CYCLE DISCHARGE PRESSURE LOW CHECKLIST Improper Installation Refer to Installation Visual Inspection Checklist page 133 Condenser Defective head pressure control valve won t bypass page 190 Defective fan cycle control stuck closed page 180 Other Undercharged Wrong type of refrigerant Non Manitowoc components in system Liquid line component restricted 140 Part Number STH026 8 12 Analyzing Suction Pressure The suction pressure gradually drops throughout the freeze cycle The actual suction pressure and drop rate changes as the air and water temperature entering the ice machine changes These variables also determine the freeze cycle times To analyze and identify the proper suction pressure drop throughout the freeze cycle compare the published suction pressure to the published freeze cycle time NOTE Analyze discharge pressure before analyzing suction pressure High or low discharge pressure may be causing high or low suction pressure 1 Determine the ice machine operating conditions Air temp entering condenser Air temp around ice machine Water temp entering sump trough 2 Refer to Operating Pressur
17. Sensing Ice No Yes Water Level Low No Yes Water Level High No Yes Exit Part Number STH026 8 12 87 Outputs 88 Status Off On Displays stage of cycle Water Pump Off On Hot Gas Valve 1 Off On Hot Gas Valve 2 Off On Air Pump Off On Water Valve Off On Dump Valve Off On Compressor Control Off On AuCS Relay Off On lonic Off On Exit Part Number STH026 8 12 DIAGNOSTICS Press the Checkmark with Diagnostics highlighted to enter screens where you can run diagnostics on the control board sensors and switches Control Board Self Check Enable Relays Exit Temperature Sensors 1 Thermistor Temperature T2Thermistor Temperature Thermistor Temperature 4 Thermistor Temperature Exit Inputs Curtain Switch 1 Closed Open Curtain Switch 2 Closed Open LPCO Switch Closed Open HPCO Switch Closed Open BinLevel Low Optional Bin Level Probe Closed Open Bin Level Medium Optional Bin Level Probe Closed Open Bin Level High Optional Bin Level Probe Closed Open Sensing Ice No Yes Water Level Low No Yes Water Level High No Yes Exit Part Number 5 26 8 12 89 MANUAL HARVEST Press the Checkmark with Manual Harvest highlighted to initiate a manual harvest Manual Harvest Harvest Started Exit REPLACE CONTROL BOARD Press the Checkmark with Replace Control Board highlighted to program the replacement control bo
18. board Step 4 Scroll to Service Diagnostics Inputs and press down arrow until Wtr Low and Wir High are displayed e Nois displayed on both Wtr low and Wtr high The control board is not receiving a sensing water signal Go to next step e Yes is displayed The control board is receiving a sensing water signal from the low and high probes Replace the control board Part Number STH026 8 12 167 Step 5 Disconnect the water level probe wiring harness from the control board and ohm harness and water level probe Normal readings will show no resistance E White Black Red Short Probe Ohm water Level Probe and Wiring Harness 168 Part Number STH026 8 12 Step 6 When all ohm tests are normal replace the control board When any measurement fails disconnect the wiring harness from the water level probe and ohm the water level probe with the wiring harness removed from the circuit Results will determine whether the wiring harness or probe will need replacement Empty Terminal C Short Probe Ohm Water Level Probe Part Number STH026 8 12 169 WATER TROUGH WILL NOT FILL Step 1 Verify water is supplied to the ice machine Step 2 Scroll to Service Diagnostics Inputs and press down arrow until Wtr Low and Wtr High are displayed A Yesis displayed Control board is receiving a sensing water signal Proceed to
19. 19 mm 16 mm Suction Line 1 4 7mm Liquid Line 36 Part Number STH026 8 12 ICVD TRANSFORMER WIRING ICVD transformers leave the factory wired for a 240V supply voltage When connecting to a 208V supply voltage the transformer must be rewired to maintain a 24V secondary voltage Failure to correctly wire the transformer can result in premature transformer failure Refer to wiring diagrams for wiring details ICVD INTERCONNECTING WIRING Important Indigo QuietQube machines require interconnecting low voltage wiring included with Manitowoc line sets to energize the contactor coil and verify the LPCO amp HPCO are closed This circuit also initiates a time delay whenever the LPCO or HPCO open Failure to properly wire the iCVD condensing unit or ice machine head section will result in a non operational machine Wire Specifications 18 AWG 5 Conductor Single Strand Plenum Rated UL rated to 300 volts Part Number STH026 8 12 37 Additional Refri 51 to 100 Line ets gerant Charge For Additional Amount of Ice Condenser Refrigerant To Be Machine Added To Nameplate Charge 10680C 1 5 Ibs 10680C ICVD0695 680 g IBO690C 4 Ibs 10870C ICVD0895 1814 9 2 Ibs IB890C ICVD0895 907 g 2 Ibs 11070C ICVD1095 907 g 2 Ibs IB1090C ICVD1195 907 g 2 Ibs 11470C ICVD1495 907 g 2 Ibs 11870C ICVD1895 907 g 2 Ibs 12170C ICVD2095 907 g 38 Part Number STH026
20. Always disconnect power before working on electrical circuitry Some components are wired differently on energy efficient machines Please verify your model number page 19 to reference the correct diagrams WIRING DIAGRAM LEGEND The following symbols are used on all of the wiring diagrams E Internal Compressor Overload Some models have external compressor overloads s Fan Motor Run Capacitor Some models do not incorporate fan motor run capacitor Wire Number Designation The number is marked at each end of the wire gt gt Multi Pin Connection Electrical Box Side gt gt Compressor Compartment Side Part Number 5 26 8 12 221 ALL ICVD MODELS INTERCONNECTING WIRING c1 V1 J8ULJOJSUEJ AYZ OOdl 291 uonoejeg Part Number STH026 8 12 222 10670C 10870C 11070C 11270C QuietQube Remote Air cooled 1 amp 3 Ph 1 SERIES ICE MACHINES QUIETOUBE PHASE DISCONNECT POWER WORKING ON ELECTRICAL CIRCUITRY CAUTION ju RE SEE SERIAL PLATE FOR VOLTAGE WATER Roy en VALVE GROUND 1 COMPRESSOR WHEN USED
21. Harvest is displayed Harvest cycle discharge pressure is normal Freeze cycle time suction and discharge pressure are normal and the ice machine will not harvest The sheet of ice cubes show little or no sign of melting when removed from the evaporator after the harvest cycle has been completed If the cubes are melted you have a release problem clean the ice machine Part Number STH026 8 12 193 HARVEST CYCLE DIAGNOSTICS QUIETQUBE amp REMOTE CONDENSING UNIT The headmaster control valve diverts the compressor discharge gas to the ice machine receiver in the harvest cycle All refrigerant flow through the condenser in the harvest cycle stops Symptoms of a headmaster valve that will not seat 10096 closed completely bypass the condenser in the harvest cycle are Freeze cycle suction and discharge pressure are normal control board indicates safety limit 2 flashing triangle alert and after pressing left arrow Long Harvest is displayed The failure seems to be temperature related Example The ice machine may function correctly at temperatures above 32 F but fails at temperatures below 32 F Harvest cycle suction pressure is low Harvest cycle discharge pressure is normal or slightly low Procedure 1 Freeze cycle operation must be normal before diagnosing the headmaster in the harvest cycle Refer to Cycle Times 24 hr Ice Production Refrigerant Pressure Chart 2 Allow the ice machine
22. LOW CHECKLIST Improper Installation Refer to Installation Visual Inspection Checklist page 133 Discharge Pressure Discharge pressure is too low and is affecting low side refer to Freeze Cycle Discharge Pressure Low Checklist page 140 Improper Refrigerant Charge e Undercharged Wrong type of refrigerant Other Non Manitowoc components in system Improper water supply over evaporator refer to Water System Checklist page 134 Restricted plugged liquid line drier e Restricted plugged tubing in suction side of refrigeration system starving Liquid line solenoid valve closed Part Number 5 26 8 12 143 QuietQube amp Models Harvest Valve Analysis Symptoms of a harvest valve remaining partially open during the freeze cycle can be similar to symptoms of either an expansion valve or compressor problem The best way to diagnose a harvest valve is by using Manitowoc s Ice Machine Freeze Cycle Refrigeration System Operational Analysis Table Use the following procedures to determine if a harvest valve is remaining partially open during the freeze cycle QUIETQUBE HARVEST VALVE ANALYSIS The valve can fail in two positions Valve will not open in the Harvest cycle Valve remains open during the Freeze cycle Valve will not open in the Harvest cycle Although the circuit board has initiated a Harvest cycle suction and discharge pressures remain unchanged from th
23. Read These Before Proceeding Caution Proper installation care and maintenance are essential for maximum performance and trouble free operation of your Manitowoc equipment If you encounter problems not covered by this manual do not proceed contact Manitowoc Foodservice We will be happy to provide assistance Caution Proper installation care and maintenance are essential for maximum performance and trouble free operation of your equipment Visit our website www manitowocfsg com for manual updates translations or contact information for Service agents in your area Important Routine adjustments and maintenance procedures outlined in this handbook are not covered by the warranty Warning Read this manual thoroughly before operating installing or performing maintenance on the equipment Failure to follow instructions in this manual can cause property damage injury or death Warning Do not use electrical appliances or accessories other than those supplied by Manitowoc for your ice machine model Warning Two or more people or a lifting device are required to lift this appliance Warning This equipment contains high voltage electricity and refrigerant charge Installation and repairs are to be performed by properly trained technicians aware of the dangers of dealing with high voltage electricity and refrigerant under pressure The technician must also be ce
24. X Manitowoc I B Indigo Series QuietQube Ice Machines Technician s Handbook This manual is updated as new information and models are released Visit our website for the latest manual www manitowocice com America s 1 Selling Ice Machine Part Number 26 8 12 Safety Notices As you work on Manitowoc equipment be sure to pay close attention to the safety notices in this handbook Disregarding the notices may lead to serious injury and or damage to the equipment Throughout this handbook you will see the following types of safety notices Warning Text in a Warning box alerts you to a potential personal injury situation Be sure to read the Warning statement before proceeding and work carefully Procedural Notices Caution Text in a Caution box alerts you to a situation in which you could damage the equipment Be sure to read the Caution statement before proceeding and work carefully As you work on Manitowoc equipment be sure to read the procedural notices in this handbook These notices supply helpful information which may assist you as you work Throughout this handbook you will see the following types of procedural notices Important Text in an Important box provides you with information that may help you perform a procedure more efficiently Disregarding this information will not cause damage or injury but it may slow you down as you work
25. and view usage statistics from this menu Press the Left arrow to return to previous screens Energy Saver Ice Program Water Miser Statistics n Exit Energy Saver Menu 80 Part Number STHO026 8 12 ICE PROGRAM To save energy and water the ice machine can be programmed to only power up during time periods that the ice will be used or when the bin level is being depleted by heavy use 1 2 In the Energy Saver menu ensure that Ice Program is highlighted Press the Checkmark On this screen you can choose to turn on the time program Time Prog bin level program Bin Level or ice usage program Ice Program by highlighting your choice and pressing the Checkmark Selecting one will deselect the other If one of them is selected and you wish to turn both off highlight the choice and press Checkmark again If none of the programs are selected highlighting Settings and pressing the Checkmark will select the times bin level or pounds of ice per day If one of the programs is selected highlight Settings and press the Checkmark to choose the times or bin levels NOTE For details on how to use the cursor for the time program refer to Display Panel Navigation in this section Select Exit to return to previous screens and again to the Energy Saver menu Part Number 5 26 8 12 81 WATER MISER Water Miser is a feature that depending on water quality can reduce water usage by e
26. 2 Reboot ice machine by disconnecting power for a minimum of 15 seconds reapplying power and checking micro light for normal flashing 3 Press the power button on the display and watch the green Display light on the control board A Display light flashes Test run ice machine B Display light is off Replace communication cable first as a test then replace display touch pad assembly if required Part Number 5 26 8 12 155 Control Board Diagnostics 1 Micro light is not flashing a heartbeat 2 Disconnect line voltage power supply to the ice machine and wait a minimum of 15 seconds then reapply power A Micro light flashes continue with step 3 B Micro light is off Replace control board 3 Perform the following keystrokes on the display Press Menu scroll down to Service and press right arrow Scroll down to Diagnostics and press right arrow Display reads Control Board press right arrow Display reads Self Check press right arrow to start control board test The control board performs a self test As the test progresses the display will show Checkmarks at the top left of the display screen When the fifth Checkmark appears the display will show Status Failed or Status Passed e Status passed The control board is functioning normally continue with touch pad diagnostics on next page Status failed Replace control board 156 Part Number STHO026 8 12 Touch Pad Diagnostics Follow
27. 210 65 90 80 27 245 275 50 28 190 210 75 100 90 32 250 290 52 30 195 215 75 105 100 38 270 320 52 31 210 240 80 110 110 43 300 360 60 32 215 260 85 115 212 Part Number STH026 8 12 IBO690C ICVD695 Remote Air Cooled Condensing Unit Model Characteristics vary depending on operating conditions CYCLE TIMES Freeze Time Harvest Time Total Cycle Time Freeze Time Harvest Time Cycle Time Air Temp Freeze Time Entering 3 Harvest Condenser Water Temperature F C Time 50 10 70 21 90 32 20 to 70 29 to 21 8 9 10 2 9 5 11 0 1 3 11 9 80 27 9 3 10 7 10 0 11 5 10 9 12 5 90 32 9 6 11 1 10 4 12 0 114 130 7925 100 38 10 2 11 8 11 1 12 8 12 2 13 9 110 43 11 0 12 6 12 0 13 8 13 2 15 1 1Times in minutes Dice cube 24 HOUR ICE PRODUCTION Air Temp Water Temperature F C Entering Condenser 1 70 21 32 OFC 50 10 0 90 3 20 to 70 29 to 21 640 600 560 80 27 615 575 535 90 32 595 555 515 100 38 565 525 485 110 43 530 490 450 1Based on average ice slab weight of 4 60 5 20 Ib OPERATING PRESSURES Air Temp Freeze Cycle Harvest Cycle Entering Discharge Suction Discharge Suction Condenser Pressure Pressure Pressure Pressure psig psig psig psig 201050 215 260 46 26 140 185 70 95 70 21 220 270 51 26 150 190 70 100 80 27 225 285 56 27 155 195 80 105 90 32 235 295
28. 212 IBO690C ICVD695 213 10870C ICVD895 214 IBO890C ICVD895 215 11070C ICVD1095 216 IB1090C ICVD1195 217 1470C ICVD1495 218 11870C ICVD1895 219 12170C ICVD2195 220 Diagrams Wiring Diagrams 221 Wiring Diagram Legend 221 All ICVD Models Interconnecting wiring 222 10670C 10870C 11070C 11270C 223 1B0690C IB0890C IB1090C 224 111400 11800 122170 225 iCVD2095 226 Electronic Control Board 227 Refrigeration Tubing Schematics 228 Remote Condensing Unit Models 228 IB Models 229 Dual Evaporator Models 231 IZTZ0Q ese ics Sav ok Vor acne Bean E X 232 14 Part Number STH026 8 12 General Information How to Read a Model Number 09 097 597 yun eBeie eg 931 6 2 09 022 802 96 109 082 LSZ 6 eunsseJg YBIH dH L 09 0 2 802 9 ejouies 8 97 109 5 191 8 9 9 010 senes 89 92 gi 9990 mitos 3NIHOVIN 391 dHd i 91 UO JON 99IQHIEH A d IPPO
29. 8 12 CALCULATING ALLOWABLE LINESET DISTANCE Line Set Length The maximum length is 100 30 5 m Line Set Rise Drop The maximum rise is 35 10 7 m The maximum drop is 15 4 5 m 35 FT 10 7 M MAXIMUM DISTANCE S trap required at midpoint when Rise is 21 or greater 1751 35 ft 10 7 m Rise The maximum distance the Condenser or Condensing Unit can be above the ice machine 15 FT 4 5 M MAXIMUM DISTANCE 1750 15 ft 4 5 m Drop The maximum distance the Condenser or Condensing Unit can be below the ice machine Part Number 5 26 8 12 39 Calculated Line Set Distance The maximum calculated distance is 150 45 7 m Line set rises drops horizontal runs or combinations of these in excess of the stated maximums will exceed compressor start up and design limits This will cause poor oil return to the compressor Make the following calculations to make sure the line set layout is within specifications 1 Insert the measured rise into the formula below Multiply by 1 7 to get the calculated rise Example A condenser located 10 feet above the ice machine has a calculated rise of 17 feet 2 Insert the measured drop into the formula below Multiply by 6 6 to get the calculated drop Example A condenser located 10 feet below the ice machine has a calculated drop of 66 feet 3 Insert the measured horizontal distance into the formula below
30. Inlet SN E gt 5 Thin at Outlet Part Number STH026 8 12 137 Analyzing Discharge Pressure in the Freeze Cycle 1 Determine the ice machine operating conditions Air temp entering condenser Air temp around ice machine Water temp entering sump trough 2 Refer to Operating Pressure table starting on page 211 for ice machine being checked Use the operating conditions determined in step 1 to find the published normal discharge pressures Freeze Cycle Harvest Cycle 3 Perform an actual discharge pressure check Freeze Cycle psig kPa 1 Minute into the Freeze Cycle Middle of Freeze Cycle End of Freeze Cycle 4 Compare the actual discharge pressure step 3 with the published discharge pressure step 2 The discharge pressure is normal when the actual pressure falls within the published pressure range for the ice machine s operating conditions It is normal for the discharge pressure to be higher at the beginning of the Freeze cycle when load is greatest then drop throughout the Freeze cycle 138 Part Number STHO026 8 12 FREEZE CYCLE DISCHARGE PRESSURE HIGH CHECKLIST Improper Installation Refer to Installation Visual Inspection Checklist page 133 Air Condenser Dirty condenser filter Dirty condenser fins High inlet air temperature Condenser discharge air recirculation Defective fan cycling control page 180 Defective fan motor
31. Inspection of the refrigerant usually provides the first indication of system contamination Obvious moisture or an acrid odor in the refrigerant indicates contamination If either condition is found or if contamination is suspected use a Total Test Kit from Totaline or a similar diagnostic tool These devices sample refrigerant eliminating the need to take an oil sample Follow the manufacturer s directions If a refrigerant test kit indicates harmful levels of contamination or if a test kit is not available inspect the compressor oil 1 Remove the refrigerant charge from the ice machine 2 Remove the compressor from the system 3 Check the odor and appearance of the oil 4 Inspect open suction and discharge lines at the compressor for burnout deposits 5 If no signs of contamination are present perform an acid oil test Check the chart on the next page to determine the type of cleanup required Part Number 5 26 8 12 201 Contamination Cleanup Chart Symptoms Findings Required Cleanup Procedure No symptoms or suspicion of Normal contamination evacuation recharging procedure Moisture Air Contamination symptoms Refrigeration system open to atmosphere for longer than 15 minutes Refrigeration test kit and or acid oil test shows contamination Leak in water cooled condenser No burnout deposits in open compressor lines Mild contamination cleanup procedure Mild Compressor Burnout symptoms
32. Log only no alert E16 Rmt Fault Remote Condenser Fault If the liquid line temperature drops below 40 F or exceeds 140 F for more than 1 continuous minute ICVD Condensing Unit only during the freeze cycle G Board Rev 4 017 Event Log only no alert E17 Spare E18 Spare E19 ITP Fault Ice Probe ITP The monitored Frequencies is out of the appropriate range Probe unplugged or problem with microphone G Board Rev 4 017 Event Log only no alert Any of the following 1 Sensing high water probe and not low water probe Water fault E20 WTR Fault Water System Fault The Evaporator outlet temperature is less than 10 F 6 5 to 7 5 Minutes into freeze 2 3 The Low Water probe is satisfied at the end of harvest 4 Low or High water probe satisfied at end of freeze cycle G Board Rev 4 017 Event Log only no alert ZL 8 920H LS JequinN Hed 96 Detail Event Log Service Definition E Log Display Text Error Description Definition E21 T1 Fault T1 Sensor E22 T2 Fault T2 Sensor Each thermistor reading is monitored continuously using six second average values During Pre chill a thermistor had a six second average thermistor values fall outside of the valid temperature range E23 T3Fault T3 Sensor E24 T4 Fault T4 Sensor E25 Bin Prb Fault Bin Low Sens Each thermistor reading is monitored continuously using six second average values A E26 Bin Prb Fault Bin Med Sens thermistor had a six second average
33. No calculation is necessary 4 Add together the calculated rise calculated drop and horizontal distance to get the total calculated distance If this total exceeds 150 45 7 m move the condenser to a new location and perform the calculations again Maximum Line Set Distance Formula Step 1 Measured Rise 1 7 Calculated Rise 35 ft Max Step 2 Measured Drop X 6 6 Calculated Drop 15 ft Max Step 3 Measured Horizontal Distance Horizontal 100 ft Max Distance Step 4 Total Calculated Distance Total Calculated 150 ft Max Distance 40 Part Number STHO026 8 12 Maintenance Cleaning and Sanitizing GENERAL You are responsible for maintaining the ice machine in accordance with the instructions in this manual Maintenance procedures are not covered by the warranty Clean and sanitize the ice machine every six months for efficient operation If the ice machine requires more frequent cleaning and sanitizing consult a qualified service company to test the water quality and recommend appropriate water treatment An extremely dirty ice machine must be taken apart for cleaning and sanitizing Manitowoc Ice Machine Cleaner and Sanitizer are the only products approved for use in Manitowoc ice machines Part Number 5 26 8 12 41 Caution Use only Manitowoc approved lce Machine Cleaner and Sanitizer for this application Manitowoc Cleaner part number 94 0546 3 and Manitowoc Sanitizer part n
34. STH026 8 12 10 11 12 13 14 Press the Checkmark The date will appear on the first line of the display Mo Day Yr and the time will appear on the second line 24 Hour The month will have a blinking cursor Using the Up or Down arrow adjust the month if necessary When the correct month appears use the Right arrow to move the blinking cursor to day Using the Up or Down arrow adjust the day if necessary When the correct day appears use the Right arrow to move the blinking cursor to year Using the Up or Down arrow adjust the year if necessary When the correct year appears press the Checkmark Use the Right arrow to move the blinking cursor to hour Using the Up or Down arrow adjust the hour if necessary When the correct hour appears use the Right arrow to move the blinking cursor to minutes Using the Up or Down arrow adjust the minutes if necessary When the correct minutes appear press the Checkmark twice Part Number STH026 8 12 71 TIME CONFIGURATION 1 2 From the Set Up menu use the Down arrow to highlight Time Config Press the Checkmark On this screen you can choose whether the date will be displayed as Mo Day Yr or by highlighting your choice and pressing the Checkmark Selecting one will deselect the other You can also choose whether the time will be displayed as 12 Hour or 24 Hour by highlighting your choice
35. Temp Freeze Time Entering 3 Harvest Condenser Water Temperature F C Time F C 50 10 70 21 90 32 20 to 70 29 to 21 9 3 10 7 10 1 11 7 11 1 12 7 80 27 10 1 11 7 11 1 12 7 11 8 13 6 90 32 109 126 122 3440 127 146 7525 100 38 12 0 13 8 12 9 14 8 13 7 15 7 110 43 13 1 15 0 13 9 16 0 14 9 17 1 1Times in minutes Dice cube 24 HOUR ICE PRODUCTION Air Temp Water Temperature F C Entering Condenser 1 70 21 32 OFC 50 10 0 90 3 20 to 70 29 to 21 1000 930 860 80 27 930 860 810 90132 870 790 760 100 38 800 750 710 110 43 740 700 660 1Based on average ice slab weight of 7 5 8 5 Ib OPERATING PRESSURES Air Temp Freeze Cycle Harvest Cycle Entering Discharge Suction Discharge Suction Condenser Pressure Pressure Pressure Pressure psig psig psig psig 20 I MK 200 250 40 25 440 170 65 75 70 21 220 270 40 25 150 185 65 85 80 27 225 275 50 26 160 190 70 90 90 32 235 275 60 27 175 195 75 95 100 38 260 325 65 30 190 220 80 100 110 43 300 360 70 33 200 230 90 105 Part Number 26 8 12 217 11470C ICVD1495 Remote Air Cooled Condensing Unit Model Characteristics vary depending on operating conditions CYCLE TIMES Freeze Time Harvest Time Total Cycle Time Freeze Time Harvest Time Cycle Time Air Temp Freeze Time Water
36. Temperature F C jn F C 50 10 70 21 90 32 20 to 70 11 5 13 7 12 5 14 8 14 5 17 2 29 to 21 80 27 13 0 15 4 14 0 16 6 16 3 19 3 90 32 14 1 16 7 16 1 19 1 17 5207 7925 100 38 15 0 17 8 17 3 20 4 18 7 22 1 110 43 11 5 13 7 12 5 14 8 14 5 17 2 1Times in minutes Dice cube 24 HOUR ICE PRODUCTION Air Temp Water Temperature F C Entering Condenser 50 10 70 21 90 32 20 to 70 1330 1235 1080 29 to 21 90 32 1190 1115 970 100 38 1110 980 910 110 43 1045 920 855 slab weight of one harvest cycle 12 0 Ib to 14 0 Ib 6 0 to 7 0 Ibs per evaporator 5 44 kg to 6 35 kg 2 72 to 3 18 kg per evaporator 230 50 1 is approximately 1296 lower than 230 60 1 OPERATING PRESSURES Air Temp Freeze Cycle Harvest Cycle Entering Discharge Suction Discharge Suction Condenser Pressure Pressure Pressure Pressure psig psig psig psig 20 to 50 250 235 60 36 140 165 70 95 29 to 10 70 21 250 235 60 38 150 170 70 95 80 27 275 240 60 38 160 180 85 95 90 32 300 285 65 39 170 190 90 110 100 38 350 300 70 40 180 200 95 115 110 43 410 350 80 40 190 215 100 125 218 Part Number STH026 8 12 11870C ICVD1895 Remote Air Cooled Condensing Unit Model Characteristics vary depending on operating conditions CYCLE TIMES Freeze Time Harvest Time Total Cycle Time Freeze Time Harvest Time Cycle Time
37. Top 5 12 7 cm 0 0 cm Sides 5 12 7 cm 0 0 cm Back 5 12 7 cm 48 122 cm Standard Connections Back 3 7 6 cm N A Connections Out Top Front M 48 122 cm 11270C 11470C Ice Machine ICVD 11870C i Head Section a nit Top 5 12 7 cm 0 0 cm Sides 5 12 7 cm 0 0 cm Back 5 12 7 cm 48 122 cm Standard Connections Back 3 7 6 cm N A Connections Out Top Front ans 24 61 0 cm Ice Beverage Models ICVD IBO690C IB0890C Ice Machine Condensin IB1090C Head Section ni 9 nit Top 2 5 1 cm 0 0 cm Sides 8 20 3 cm 0 0 cm Back 5 12 7 cm 48 122 cm Front vet 48 122 cm 6 15 2 cm is recommended for servicing Minimum amounts vary by installation Access is required for cleaning sanitizing and ice removal Part Number STH026 8 12 Ice Machine Heat of Rejection m 2681 of Rejection ER 10600 9000 13900 10850 13000 16000 11000 16250 18600 11200 20700 24500 11400 23500 27000 11800 30000 35000 12100 30500 35500 BTU Hour Because the heat of rejection varies during the ice making cycle the figure shown is an average 32 Part Number STHO026 8 12 11470C 11870C 12170C Installation on a Manitowoc Bin Dual evaporator models will not function correctly with the stock bin deflector An ice deflector kit is required for installation and is ordered separate Order appropriate kit 30 or 4
38. a Manitowoc OEM liquid line filter drier to prevent voiding the warranty Warning Recovery evacuation of a QuietQube remote system requires connections at five points for complete system recovery evacuation Check valves are located in the ice machine head section and the ICVD condensing unit Five point requires connections between the compressor and suction filter access valve receiver access valve and the high and low side access valves on the front or rear of the ice machine to recover and evacuate the entire system Warning The receiver access valve located in the ice machine head section must be accessed during refrigerant recovery to allow complete removal of the refrigerant charge Part Number 5 26 8 12 197 CONNECTIONS Manifold gauge sets must utilize low loss fittings to comply with U S Government rules and regulations Make these connections Ice Machine Head Section All Models 1 Suction side of the compressor through the suction shut off valve or suction access valve 2 Discharge side of the compressor through the liquid line shut off valve or high side access valve 3 Receiver access valve which evacuates the area between the check valve in the liquid line and the liquid line solenoid valve Warning Recovery evacuation of a QuietQube remote system requires connections at three points for complete system recovery evacuation Check valves are located in the ice m
39. and right ice dampers down to clear water trough Pull forward on the water trough to remove NOTE Proceed to page 47 Step 7 Part Number STH026 8 12 55 Ice Thickness Probe amp Water Level Probe Cl ean the probes using the following procedure 1 Mix a solution of Manitowoc ice machine cleaner and water 2 ounces of cleaner to 16 ounces of water in a container 2 Soak probes in container of cleaner water solution while disassembling and cleaning water circuit components soak probes for 10 minutes or longer 3 Clean all probe surfaces including all plastic parts do not use abrasives Verify all surfaces are clean Thoroughly rinse probes with clean water 4 Reinstall probe then sanitize the ice machine and 56 bin dispenser interior surfaces Part Number STH026 8 12 Water Inlet Valve The water inlet valve normally does not require removal for cleaning Refer to Water System Checklist page 134 if you are troubleshooting water related problems 1 When the ice machine is off the water inlet valve must completely stop water flow into the machine Watch for water flow When the ice machine is on the water inlet valve must allow the proper water flow through it Press the Power button to energize the ice machine Watch for water flow into the ice machine If the water flow is slow or only trickles into the ice machine refer to water system checklist Warning Disconnect the electric pow
40. basic precautions must always be followed including the following a Read all the instructions before using the appliance b To reduce the risk of injury close supervision is necessary when an appliance is used near children c Do not contact moving parts d Only use attachments recommended or sold by the manufacturer e Do not use outdoors f For a cord connected appliance the following must be included Do not unplug by pulling on cord To unplug grasp the plug not the cord Unplug from outlet when not in use and before servicing or cleaning Donotoperate any appliance with a damaged cord or plug or after the appliance malfunctions or is dropped or damaged in any manner Contact the nearest authorized service facility for examination repair or electrical or mechanical adjustment g Follow applicable lock out tag out procedures before working on equipment h Connect to a properly grounded outlet only We reserve the right to make product improvements at any time Specifications and design are subject to change without notice Table of Contents General Information How to Read a Model Number 15 Head Sections 15 ICVD Condensing Units 16 Ice Cube Sizes 16 Model Serial Number Location 17 Model Numbers 18 QuietQube Models 18 Ice Machine Warranty Information 19 Owner Warrant
41. closed If the HPCO is open another 60 minute delay period starts Ice Machine starts Run the system to see if the control trips at the rated pressure If HPCO opens at a pressure significantly lower or higher than the control setting of 450 psig replace the HPCO If the control opens at the correct pressure find the root cause Fan motor dirty condenser refrigeration system issue etc Ice Machine Does Not Start Continue with the next step 2 Leave all wiring connectors attached and perform testing within the 60 minute time delay period Check for 24 volts at terminals V amp C interconnecting wiring connections on the ice machine control board A 24 volts Proceed with next step B 0 Volts Restore line voltage to condensing unit or repair interconnecting wiring or replace transformer in condensing unit 3 Check for 24 volts at terminals C amp HPC1 A 24 volts Proceed with next step B 0 volts HPCO switch is open Verify pressure Below cut in replace HPCO Above cut in find root cause problem 4 Check for 24 volts at terminals C amp HPC2 A 24 volts Faulty relay on control board Replace control board 0 volts HPCO switch is open Verify pressure Below cut in replace HPCO Above cut in find root cause problem Part Number 5 26 8 12 177 Symptom 2 Machine is running and the display has a flashing alert triangle and indicates HPC Fault after the left arrow i
42. cycle times 1 Turn off power and inspect ice thickness probe for physical damage Look for bulging cracks around the nipple or deformed pivot pins 2 Verify ice thickness probe gap is approximately 9 32 7 mm 3 Make sure the ice thickness probe wire doesn t restrict movement 4 Perform Ice Thickness Probe tap test Press the menu button scroll down to Service press the right arrow scroll down to Real Time Data press right arrow With the brackets around Time amp Temp press the right arrow Scroll down until 100Hz amp 120Hz are displayed Slowly increasing and decreasing numbers typically in the 200Hz to 300Hz range will display to the right of 100Hz amp 120Hz Lift the Ice Thickness Probe and continuously tap the nipple while watching the numbers to the right of the 100Hz and 120Hz There is a slight delay while tapping Pass Numbers increasing into the thousands indicates a properly working ice thickness probe and control board Fail Numbers do not move or do not increase into the thousands Ohm the ice thickness probe Part Number 5 26 8 12 173 5 Ohm Ice Thickness Probe NOTE Verify meter leads are properly connected to VOM with the red meter lead connected to positive amp the black meter lead connected to negative Disconnect Ice Thickness Probe from control board Connect red meter lead to the red wire and the black meter lead to the black wire Normal readings
43. dump valve can easily be cleaned If complete removal is desired continue with step 5 Important The plunger and the inside of the enclosing tube must be completely dry before assembly 58 Part Number STH026 8 12 NOTE During cleaning do not stretch or damage the spring 1 Remove the tubing from the dump valve by twisting the clamps off 2 Remove the valve twist off COIL NYLON GASKET DIAPHRAM MOUNTING BRACKET Dump Valve Disassembly Part Number STH026 8 12 59 60 This Page Intentionally Left Blank Part Number STH026 8 12 Power Button Cleaning Button 6 Manitowoc LCD Display Navigation Arrows A v Checkmark Operation Control Panel Features The control panel offers a series of pressure sensitive buttons and a four line interactive display panel BUTTONS Power Button Powers the ice machine when in the On Off Mode The ice machine can also be programmed to automatically power on and off in two Energy Saver modes Cleaning Button Initiates a cleaning cycle Refer to the Maintenance section for details Part Number STH026 8 12 61 Menu Button Accesses main menu structure Moves the display from the Home Screen where ice machine status alerts and messages are viewed to the Main Menu where machine information and its event log can be accessed machine and Energy Saver settings can be adjusted and service issues can be addressed Lef
44. during the clean sanitize cycle Follow one of the methods below Press the power switch at the end of a harvest cycle after ice falls from the evaporator s Press the power switch and allow the ice to melt Caution Never use anything to force ice from the evaporator Damage may result Step 2 Remove all ice from the bin dispenser Step 3 Press the clean switch Water will flow through the water dump valve and down the drain Wait until the water trough refills and the display indicates add solution approximately 1 minute then add the proper amount of ice machine cleaner Model Amount of Cleaner 10600 10850 11000 11200 IBOS90C IBOB890C IB1090c gt 241 150 ml 1400118002100 9 ounces 265 ml Part Number STH026 8 12 45 Step 4 Wait until the clean cycle is complete approximately 24 minutes Then disconnect power to the ice machine and dispenser when used Warning Disconnect the electric power to the ice machine at the electric service switch box Step 5 Remove parts for cleaning Please refer to the proper parts removal for your ice machine Continue with step 6 when the parts have been removed Single Evaporator Ice Machines page 50 Dual Evaporator Ice Machines page 54 Step 6 Mix a solution of cleaner and lukewarm water Depending upon the amount of mineral buildup a larger quantity of solution may be required Use the ratio in the table below to
45. etc to incorporate an ice deflector Prior to using a non Manitowoc ice storage system with other Manitowoc ice machines contact the manufacturer to assure their ice deflector is compatible with Manitowoc machines Model Serial Number Location These numbers are required when requesting information from your local Manitowoc Distributor service representative or Manitowoc Ice Inc The model and serial number are listed on the OWNER WARRANTY REGISTRATION CARD They are also listed on the MODEL SERIAL NUMBER DECAL affixed to the front and rear of the ice machine Part Number STH026 8 12 17 Model Numbers QUIETQUBE MODELS Ice Machine Head ICVD Condensing Section Unit ID0682C IYO684C ICVD0695 IB0694YC 1ID0872C IYOS74C ICVD0895 IB0894YC ID1072C IY1074C ICVD1095 IB1094YC ICVD1195 ID1472C IY1474C ICVD1495 ID1872C IY1874C ICVD1895 pete ICVD2095 IY2174C 18 Part Number STH026 8 12 Ice Machine Warranty Information OWNER WARRANTY REGISTRATION CARD Warranty coverage begins the day the ice machine is installed Important Complete and mail the OWNER WARRANTY REGISTRATION CARD as soon as possible to validate the installation date If the OWNER WARRANTY REGISTRATION CARD is not returned Manitowoc will use the born on date recorded in the control board or the date of sale to the Manitowoc Distributor as the first day of warranty cov
46. exterior panels have a clear coating that is stain resistant and easy to clean Products containing abrasives will damage the coating and scratch the panels Never use steel wool or abrasive pads for cleaning Never use chlorinated citrus based or abrasive cleaners on exterior panels and plastic trim pieces Part Number 5 26 8 12 43 Cleaning Sanitizing Procedure Caution Use only Manitowoc approved lce Machine Cleaner and Sanitizer for this application Manitowoc Cleaner part number 94 0546 3 and Manitowoc Sanitizer part number 94 0565 3 It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling Read and understand all labels printed on bottles before use CLEANING PROCEDURE Caution Do not mix Cleaner and Sanitizer solutions together It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling Warning Wear rubber gloves and safety goggles and or face shield when handling Ice Machine Cleaner or Sanitizer Ice machine cleaner is used to remove lime scale and mineral deposits Ice machine sanitizer disinfects and removes algae and slime NOTE Although not required and dependant on your installation removing the ice machine top cover may allow easier access 44 Part Number STH026 8 12 Step 1 Open the front door to access the evaporator compartment Ice must not be on the evaporator
47. ice machines are factory operated and adjusted before shipment Normally new installations do not require any adjustment To ensure proper operation always follow the Operational Checks when starting the ice machine for the first time after a prolonged out of service period after cleaning and sanitizing NOTE Routine adjustments and maintenance procedures are not covered by the warranty Important Refrigeration compressors must be operated for a minimum break in period of 24 hours before full ice production will be reached 102 Part Number STH026 8 12 ICE THICKNESS CHECK After a harvest cycle inspect the ice cubes in the ice storage bin The ice thickness probe is factory set to maintain the ice bridge thickness at 1 8 3 mm NOTE Make sure the water curtain or splash shield is in place when performing this check It prevents water from splashing out of the water trough 1 Inspect the bridge connecting the cubes It should be about 1 8 3 mm thick 2 If adjustment is necessary turn the ice thickness probe adjustment screw clockwise to increase bridge thickness counterclockwise to decrease bridge thickness As a starting point place a 9 32 7 mm drill bit between the ice thickness probe and the evaporator Make final adjustments to achieve a 1 8 3 mm thick bridge NOTE Turning the adjustment 1 3 of a turn will change the ice thickness about 1 16 1 5 mm 1 8 3 mm ICE BRID
48. in analysis However because there are many possible external problems do not limit your diagnosis to only the items listed Part Number 5 26 8 12 113 SAFETY LIMIT 1 Freeze time exceeds 60 minutes for 6 consecutive freeze cycles Possible cause list Improper Installation Refer to Installation Visual Inspection Checklist page 133 Water System Defective water level probe Low water pressure 20 psig min High water pressure 80 psig max High water temperature 90 F 32 2 C max Clogged water distribution tube Dirty defective water fill valve Dirty defective water dump valve Defective water pump Loss of water from sump area Electrical System Low incoming voltage Ice thickness probe out of adjustment Harvest cycle not initiated electrically Contactor not energizing Compressor electrically non operational Defective fan cycling control Defective fan motor Miscellaneous Non Manitowoc components Improper refrigerant charge Defective head pressure control Defective harvest valve Defective compressor starving or flooding check bulb mounting Non condensable in refrigeration system Plugged or restricted high side refrigerant lines or component Restricted air flow dirty condenser fins High inlet air temperature Condenser discharge air recirculation 114 Part Number STH026 8 12 SAFETY LIMIT 2 Single Evaporator Models Harvest time exceeds 3 5 minutes for 500 consecuti
49. in the freeze cycle Maximum Temperature Maximum temperature for the ice thickness probe is 120 degrees F 49 degree s C Do not clean probe in a dishwasher or expose to temperatures above the maximum Part Number STH026 8 12 171 Ice Thickness Check The ice thickness probe is factory set to maintain the ice bridge thickness at 1 8 in 32 mm NOTE Make sure the water curtain splash shields are in place when performing this check It prevents water from splashing out of the water trough Remove the curtain splash shield to make an adjustment then replace immediately after the adjustment is made 1 Inspect the bridge connecting the cubes It should be about 1 8 in 32 mm thick 2 If adjustment is necessary turn the ice thickness probe adjustment screw clockwise to increase bridge thickness or counterclockwise to decrease bridge thickness Set a 9 32 gap between the ice thickness probe and evaporator as a starting point Then adjust to achieve 1 8 ice thickness 3 Make sure the ice thickness probe wire and the bracket do not restrict movement of the probe ADJUSTING SCREW 1 8 ICE BRIDGE THICKNESS PLACE 9 32 7mm DRILL BIT HERE TO SET INITIAL GAP ICE THICKNESS ADJUSTMENT 172 Part Number STH026 8 12 Diagnostics ICE MACHINE CYCLES INTO HARVEST BEFORE ICE CONTACTS THE ICE THICKNESS PROBE Premature harvest symptoms Low ice production Thin ice in bin Freeze cycles are faster than published
50. last three minutes of the freeze cycle 1 Navigate to Service Real Time Data Time amp Temp T3 amp T4 Thermistors See page 84 Service Menu Navigation for details 2 Monitor the suction line temperature during the last three minutes of the freeze cycle and record the low event 3 Use this with other information gathered on the Refrigeration Component Analysis Chart to determine the ice machine malfunction 4 Verify refrigerant amount is correct by weight when recovering refrigerant and replacing a TXV Grossly overcharged QuietQube ice machine in ambient temperatures below 70 F will have a suction line temperature below 10 F Part Number 5 26 8 12 145 QuietQube Model Final Analysis The column with the highest number of Checkmarks identifies the refrigeration problem COLUMN 1 HARVEST VALVE LEAKING Replace the valve as required COLUMN 2 LOW CHARGE TXV STARVING Normally a starving expansion valve only affects the freeze cycle pressures not the harvest cycle pressures A low refrigerant charge normally affects both pressures Verify the ice machine is not low on charge before replacing an expansion valve 1 Do not add charge to QuietQube models The symptoms of a QuietQube condensing unit low on charge will result in a safety limit 1 in cool ambient temperatures Check the liquid line temperature at the ice machine The liquid line will be hot with a normal or below normal head pressure in fr
51. mae SURE 498 hrs vito onac TOR TRAnsTORMER pm COMPRESSOR CRANKCASE se A RT AE Qo us afa contactor AX COMPRESSOR FAN MOTOR UNIT SER PAAS Duc m eM oret CONTROL RUN CAPACITOR on FAN MOTOR En 000007605 RUN CAPACITOR REV 05 Part Number 5 26 8 12 223 IB0690C IBO890C IB1090C QuietQube Remote Air cooled 1 amp 3 Ph 18 SERIES ICE MACHINES QUIETOUBE PHASE DISCONNECT POWER BEFORE WORKING ON ELECTRICAL CIRCUITRY CAUTION SEE SERIAL PLATE FOR VOLTAGE WATER WORKINGON ELECTRICAL CIRCUITRY DIAGRAM SHOWN DURING FREEZE CYCLE ten u SECOND sms E SIX Ho ten a em Cdtracssor TET SOLENOID re ces iss 3 Is Dune Wier LeveL um n 158 83 E m 9 Mies uu EIOS ro TH era WIRE NUMBER DESIGNATION E ENTM MIAE PRO J ras pisconwnser SELL curtain PENES BULKHEAD MULTIPIN CONNECTOR cournesson COMPARTMENT ERO ES sor Srt m Dm SEE SERIAL PLATE FOR VOLTAGE i 23075071 555 a
52. mix enough solution to thoroughly clean all parts Solution Water Mixed With Type Cleaner 1 gal 4 L 16 oz 500 ml cleaner 46 Part Number STHO026 8 12 Step 7 Use 1 2 of the cleaner water mixture to clean all components The cleaner solution will foam when it contacts lime scale and mineral deposits once the foaming stops use a soft bristle nylon brush sponge or cloth NOT a wire brush to carefully clean the parts Soak parts for 5 minutes 15 20 minutes for heavily scaled parts Rinse all components with clean water Step 8 While components are soaking use 1 2 of the cleaner water solution to clean all food zone surfaces of the ice machine and bin or dispenser Use a nylon brush or cloth to thoroughly clean the following ice machine areas Side walls M Base area above water trough Evaporator plastic parts including top bottom and sides Bin or dispenser Rinse all areas thoroughly with clean water SANITIZING PROCEDURE Step 9 Mix solution of sanitizer and lukewarm water Solution Type Sanitizer 3 gal 12 L 2 oz 60 ml sanitizer Water Mixed With Step 10 Use 1 2 of the sanitizer water solution to sanitize all removed components Use a spray bottle to liberally apply the solution to all surfaces of the removed parts or soak the removed parts in the sanitizer water solution Do not rinse parts after sanitizing Part Number STH026 8 12 47 Step 1
53. signal is received from the input After 72 hours the control board will enter a standby mode and turn off NOTE The control board needs a five cycle history to operate safe mode If five cycles have never been successfully completed the ice machine will shut off 112 Example The ice machine is a new installation and the water has not been turned on The ice machine will stop after five cycles with five long freeze cycles and five water system faults in the event log Part Number STHO026 8 12 ANALYZING WHY A SAFETY LIMIT STOPPED THE ICE MACHINE Safety limits are designed to stop the ice machine prior to major component failures most often a minor problem or something external to the ice machine This may be difficult to diagnose as many external problems occur intermittently Example An ice machine stops intermittently on safety limit 1 long freeze times The problem could be a low ambient temperature at night a water pressure drop the water is turned off one night a week etc Refrigeration and electrical component failures will cause a safety limit trip Eliminate all electrical components and external causes first If it appears that the refrigeration system is causing the problem use Manitowoc s Freeze Cycle Refrigeration System Operational Analysis Table along with detailed charts checklists and other references to determine the cause The following checklists are designed to assist the service technician
54. step 3 B No is displayed Control board is not receiving a sensing water signal Proceed to Control Board Diagnostics page 156 Step 3 Disconnect water level probe observe LCD display text A Nois displayed Clean the water level probe and test interconnecting wiring B Yes is displayed Refer to Control Board Diagnostics page 156 Step 4 Ohm probe Refer to previous page for procedure WATER LEVEL PROBE CIRCUIT CHECK AT CONTROL BOARD Wait until prechill cycle starts then jumper water level probe connections 2 amp 3 on the control board A Wtr High displays yes and the water stops Repair wire or replace water level probe B Wtr High displays No and the water continues to flow Replace control board 170 Part Number STHO026 8 12 ICE THICKNESS PROBE FUNCTION The ice thickness probe senses ice on the evaporator and signals the control board to start a harvest cycle After ice forms on the evaporator the ice will contact the ice thickness probe and a harvest cycle is initiated SPECIFICATIONS Freeze Time Lock In Feature The ice machine control system incorporates a freeze time lock in feature This prevents the ice machine from short cycling in and out of harvest The control board locks the ice machine in the freeze cycle and a harvest cycle can not start for six minutes Maximum Freeze Time The control system includes a built in safety which will automatically cycle the ice machine into harvest after 60 minutes
55. the screen you will be able to clear the alert by pressing the Checkmark 4 Return to the Home screen by selecting Exit and pressing the Checkmark 66 Part Number STH026 8 12 Main Menu From the Home screen press the Menu button to enter the Main menu where you can choose to see machine information make setup changes set the Energy Saver mode or enter the Service Menu Machine Info Set Up Energy Saver Factory Defaults Service Exit Main Menu Part Number 5 26 8 12 67 Machine Info Menu From the Main menu ensure that Machine Info is highlighted and press the Checkmark to view a list including capacity model number IMH Ice Machine Head serial number condenser serial number warranty installation date date of manufacture and software version Use the Down arrow to highlight an item and use the Checkmark to view the information Press the Left arrow to return to previous screens Machine Info Menu 90 70 capacity Model Ice Machine Head Serial Condenser Serial Warranty Machine Evaporator Compressor Install Date Manufacture Date Main Control Board Software Version Display Software Version RESET PASSWORD TO FACTORY DEFAULTS The password can be reset to the factory defaults when required The default factory password is 1234 To reset the ice machine to f
56. the storage bin is full at the end of a Harvest cycle the sheet of cubes fails to clear the water curtain ice dampers and holds it open After the water curtain ice dampers are held open for 30 seconds the ice machine shuts off The ice machine remains off until enough ice is removed from the storage bin to allow the sheet of cubes to drop clear of the water curtain ice dampers As the water curtain ice dampers swing back to the operating position the bin switch closes and the ice machine restarts provide the 3 minute delay has expired Important The water curtain ice dampers must be ON bin Switch closed to start ice making SPECIFICATIONS The bin switch is a magnetically operated reed switch The magnet is attached to the lower right corner of the water curtain and both ends of ice dampers The bin switch is connected to a varying D C voltage circuit Voltage does not remain constant NOTE Because of a wide variation in D C voltage it is not recommended that a voltmeter be used to check bin switch operation 162 Part Number STH026 8 12 Diagnostics SYMPTOMS Bin Switch Fails Open G Model control boards or E Model control boards with firmware version Rev 2 047 or higher The ice machine will not start an ice making cycle and the display indicates Full Bin The ice machine displays Full Bin Remove Ice in the clean cycle E Control Boards with firmware versions prior to Rev 2 047 The ice m
57. this warranty shall terminate The foregoing warranty shall constitute the sole liability of the COMPANY and the exclusive remedy of the customer or user To secure prompt and continuing warranty service the warranty registration card must be completed and sent to the COMPANY within five 5 days from the installation date To obtain warranty service or information regarding your Product please contact us at MANITOWOC ICE 2110 So 26th St Box 1720 Manitowoc WI 54221 1720 Telephone 920 682 0161 Fax 920 683 7585 www manitowocice com Part Number STH026 8 12 21 RESIDENTIAL ICE MACHINE WARRANTY WHAT DOES THIS LIMITED WARRANTY COVER Subject to the exclusions and limitations below Manitowoc Ice Inc Manitowoc warrants to the original consumer that any new ice machine manufactured by Manitowoc the Product shall be free of defects in material or workmanship for the warranty period outlined below under normal use and maintenance and upon proper installation and start up in accordance with the instruction manual supplied with the Product HOW LONG DOES THIS LIMITED WARRANTY LAST Product Covered Warranty Period Twelve months from the Ice Machine sale date WHO IS COVERED BY THIS LIMITED WARRANTY This limited warranty only applies to the original consumer of the Product and is not transferable 22 Part Number STH026 8 12 WHAT ARE MANITOWOC ICE S OBLIGATIONS UNDER
58. to run a normal freeze cycle do not initiate an early harvest cycle 3 At start of the harvest cycle feel the compressor discharge line and the liquid line to the ice machine receiver at the headmaster valve The temperature of both lines will be highest at the beginning of the harvest cycle and then decrease Compare the lines 30 seconds into the harvest cycle and then refer to Harvest Cycle Headmaster Control Valve Failure List page 190 194 Part Number STH026 8 12 Step 3 Details Grasp Here with Hands to Compare Temperatures CA MN No Flow LIQUID LINE FROM CONDENSER HARVEST CYCLE HEADMASTER CONTROL VALVE FAILURE LIST Temperature of the compressor discharge line and liquid line to the ice machine receiver feel the same 30 seconds into the harvest cycle The headmaster is functioning correctly The compressor discharge line is noticeably warmer than the liquid line to the ice machine receiver Headmaster valve is not bypassing 100 Replace headmaster valve Part Number STH026 8 12 195 SUCTION ACCUMULATOR OPERATION Liquid refrigerant collects in the suction accumulator during the harvest cycle and is removed during the freeze cycle The liquid refrigerant is returned to the compressor through a screen and orifice in the suction accumulator J tube Passing the liquid through the orifice causes a pressure drop the liquid flashes to a vapor and creates a refr
59. view a list of eight digit dates Current Current 1 Current 5 along with Lifetime be sure to use the Down arrow to reveal all the available information For each of the dates use the Checkmark to view Minimum Freeze Maximum Freeze Minimum Harvest Maximum Harvest Maximum Temperature Delta 4 Delta T3 T4 RunTime Ice Production Cycle Count Potable Water Clean Cycles Exit For Lifetime use the Checkmark to view Install Date Control Board Replacement Date e Control Board DOM Date Of Manufacture RunTime Cycle Count Potable Water Clean Cycles Exit 86 Part Number STHO026 8 12 REAL TIME DATA Press the Checkmark with Real Time Data highlighted to get readings on Time amp Temp Inputs and Outputs be sure to use the Down arrow to reveal all the available information Use the Checkmark to view Time and Temperature Status Off On Displays stage of cycle Time T1 Thermistor Temperature T2Thermistor Temperature Thermistor Temperature 4 Thermistor Temperature T3 amp T4 Delta Temperature 100 hz e 120 hz Exit Inputs Status Off On Displays stage of cycle Curtain Switch 1 Curtain Switch 2 LPCO Switch HPCO Switch Bin Level Low Optional Bin Level Probe Status Bin Level Medium Optional Bin Level Probe Status Bin Level High Optional Bin Level Probe Status
60. 026 8 12 187 PTCR The PTCR allows current to flow through the start winding at compressor startup Current flow heats the ceramic discs in the PTCR The electrical resistance increases with temperature and stops all except a trickle of current flow through the start winding The small flow of current keeps the PTCR hot 260 F 127 and the start winding out of the circuit The PTCR must be cooled before attempting to start the compressor otherwise the PTCR will heat up too quickly and stop current flow through the start winding before the compressor motor reaches full speed Warning Disconnect electrical power to the entire ice machine at the building electrical disconnect box before proceeding NOTE If a PTCR is dropped internal damage can occur to the ceramic PTCR discs The ceramic disc can chip and cause arcing which leads to PTCR failure Since there is no way to open the PTCR in order to determine if the ceramic disc is chipped or not it must be discarded when dropped 188 Part Number STH026 8 12 PTCR Operation Check 1 Visually inspect the PTCR Check for signs of physical damage NOTE The PTCR case temperature may reach 210 F 100 C while the compressor is running This is normal Do not change a PTCR just because it is hot 2 Wait at least 10 minutes for the PTCR to cool to room temperature 3 Remove the PTCR from the ice machine 4 Measure the resistance of the PTCR as shown The
61. 1 100 ft 5 9 kg 15 30 M 10 Ibs 0 50 ft 4 5 kg 0 15 M 11070C ICVD1095 12 Ibs 51 100 ft 5 44 kg 15 30 M 12 Ibs 0 50 ft 5 44 kg 0 15 M 1B1090C ICVD1195 14 Ibs 51 100 ft 6 35 kg 15 30 M 12 75 Ibs 0 50 ft 5 8 kg 0 15 M 11470C ICVD1495 14 75 lbs 51 100 ft 6 69 kg 15 30 M 15 Ibs 0 50 ft 6 8 kg 0 15 11870C ICVD1895 17 Ibs 51 100 ft 7 71 kg 15 30 M 18 Ibs 0 50 ft 8 16 kg 0 15 12170C ICVD2095 22 Ibs 51 100 ft 9 97kg 15 30 M Part Number STH026 8 12 209 This Page Intentionally Left Blank 210 Part Number STH026 8 12 Charts Cycle Times 24 Hour Ice Production Refrigerant Pressure Charts These charts are used as guidelines to verify correct ice machine operation Accurate collection of data is essential to obtain the correct diagnosis Production and cycle times are for dice cube Half dice cube cycle times can be 2 3 minutes faster depending on model and ambient temperature Regular cube production derate is 7 e Ice production checks that are within 10 of the chart are considered normal This is due to variances in water and air temperature Actual temperatures will seldom match the chart exactly Refer to Symptom 2 Operational Analysis Table page 121 for the list of data that must be collected for refrigeration diagnostics Zero out manifold gauge set before obtaining pressure readings to avoid misdiagnosis Discharge and suction pressure are highest at the beg
62. 1 Use 1 2 of the sanitizer water solution to sanitize all food zone surfaces of the ice machine and bin or dispenser Use a spray bottle to liberally apply the solution When sanitizing pay particular attention to the following areas Side walls Base area above water trough Evaporator plastic parts including top bottom and sides Bin or dispenser Do not rinse the sanitized areas Step 12 Replace all removed components Step 13 Wait 20 minutes Step 14 Reapply power to the ice machine and press the Clean button 48 Part Number STH026 8 12 Step 15 Wait until the water trough refills and the display indicates add solution approximately 1 minute Add the proper amount of Manitowoc Ice Machine Sanitizer to the water trough by pouring between the water curtain and evaporator Model Amount of Sanitizer 1600 10850 11000 11200 IB0690C IBO890C 3 ounces 90 ml IB1090C 3 5 ounces 104 ml 11400 11800 12100 12 ounces 355 ml Step 16 Select auto ice on press the checkmark and close and secure the front door The ice machine will automatically start ice making after the sanitize cycle is complete approximately 24 minutes Part Number 5 26 8 12 49 PARTS REMOVAL FOR CLEANING SANITIZING Single Evaporator Ice Machines ees eee oS off E A Remove the water curtain Gently flex the curta
63. 160 70 0 10 32 50 160 70 98 930 10 20 50 68 98 930 62 015 20 30 68 86 62 015 39 695 30 40 86 104 39 695 25 070 40 50 104 122 25 070 17 481 50 60 122 140 17 481 11 860 60 70 140 158 11 860 8 1900 70 80 158 176 8 1900 5 7530 80 90 176 194 5 7530 4 1015 90 100 194 212 4 1015 2 9735 100 110 212 230 2 9735 2 1885 110 120 230 248 2 1885 1 6290 120 130 248 266 1 6290 1 2245 130 140 266 284 1 2245 0 9319 140 150 284 302 0 9319 0 7183 150 160 302 320 0 7183 0 5624 160 170 320 338 0 5624 0 4448 170 180 338 356 0 4448 0 3530 180 190 356 374 0 3530 0 2831 190 200 374 392 0 2831 0 2273 Part Number STH026 8 12 181 Thermistor Matrix cL bL L vL NOY Z 10 Z eqnojenb cL LL vL L uj LL cL L vL now Z Joyesodenz 8 08 LL cL vL L p9002 1v nou PNOO JojeJode 3 40 LL cL L vL 8 Z
64. 3 If the overload is open there will be a resistance reading between S and R and open readings between C and S and between C and R Allow the compressor to cool then check the readings again THREE PHASE COMPRESSORS 1 Disconnect power and remove the wires from the compressor terminals 2 The resistance values between L1 and L2 between L2 and L3 and between L3 and L1 should all be equal 3 If the overload is open there will be open readings between L1 and L2 between L2 and L3 and between L3 and L1 Allow the compressor to cool then check the readings again Part Number STH026 8 12 185 CHECK MOTOR WINDINGS TO GROUND Check continuity between all three terminals and the compressor shell or copper refrigeration line Scrape metal surface to get good contact If continuity is present the compressor windings are grounded and the compressor should be replaced COMPRESSOR DRAWING LOCKED ROTOR To determine if the compressor is seized check the amp draw while the compressor is trying to start The two likely causes of this are a defective starting component or a mechanically seized compressor To determine which you have 1 Install high and low side gauges 2 Try to start the compressor 3 Watch the pressures closely A Ifthe pressures do not move the compressor is seized Replace the compressor B If the pressures move the compressor is turning slowly and is not seized Check the capacitors and relay
65. 30 C indicates the control board is good 2 Short thermistor pins The display temperature reading climbing to 475 F 246 C indicates the control board is good Part Number STH026 8 12 183 HARVEST ASSIST AIR PUMP FUNCTION The air pump helps break the vacuum between the sheet of ice and the evaporator which results in shorter harvest cycles SPECIFICATIONS 115 Volt or 230 Volt matches the ice machine voltage CHECK PROCEDURE 1 The air pump is wired in parallel with the harvest valve Verify the ice machine is in the harvest cycle and the harvest valve is energized 2 If there is voltage at the air pump connector use a volt ohm meter to verify there is no continuity through the motor windings then replace motor 184 Part Number STH026 8 12 COMPRESSOR ELECTRICAL DIAGNOSTICS The compressor does not start or will trip repeatedly on overload Check Resistance Ohm Values NOTE Compressor windings can have very low ohm values Use a properly calibrated meter Perform the resistance test after the compressor cools The compressor dome should be cool enough to touch below 120 F 49 C to assure that the overload is closed and the resistance readings will be accurate SINGLE PHASE COMPRESSORS 1 Disconnect power then remove the wires from the compressor terminals 2 The resistance values between C and S and between C and R when added together should equal the resistance value between S and R
66. 59 28 165 200 85 105 100 38 260 340 60 30 180 210 85 112 110 43 300 385 65 34 195 230 90 120 Part Number STH026 8 12 213 10870C ICVD895 Remote Air Cooled Condensing Unit Model Characteristics vary depending on operating conditions CYCLE TIMES Freeze Time Harvest Time Cycle Time Air Temp Freeze Time Water Temperature ina 50 10 70 21 90 32 201020 110 126 121 138 134 154 90 32 12 5 14 4 12 8 14 6 14 9 17 0 75 2 5 100 38 13 6 15 5 14 7 16 9 1539 182 110 43 14 9 16 9 15 8 18 0 16 9 19 3 1Times in minutes Dice cube 24 HOUR ICE PRODUCTION Air Temp Water Temperature F C Entering Condenser 1 70 21 32 OFC 50 10 0 90 3 20 to 70 29 to 21 665 610 555 90 32 590 580 505 100 38 550 510 475 110 43 510 480 450 1Based on average ice slab weight of 5 75 6 50 Ib OPERATING PRESSURES Air Temp Freeze Cycle Harvest Cycle Entering Discharge Suction Discharge Suction Condenser Pressure Pressure Pressure Pressure psig psig psig psig 2010 50 200 250 50 30 170 200 65 75 70 21 250 290 60 30 180 210 75 95 80 27 260 300 60 31 190 220 75 95 90 32 270 310 60 33 200 230 80 100 100 38 300 380 80 34 210 250 90 110 110 43 310 390 80 35 220 260 105 130 214 Part Number 26 8 12 IB0890C ICVD895 Remote Air Cooled Condensing
67. 6 month labor replacement warranty will not apply if the Manitowoc Ice Machine Condenser QuietQube Condensing Unit were not installed according to specifications This warranty also will not apply if the refrigeration system is modified with a condenser heat reclaim device or other parts or assemblies not manufactured by Manitowoc Ice Warning Recovery locations vary by model Verify you are making the correct connections for your model to prevent accidental release of high pressure refrigerant Important Manitowoc remote systems are only approved and warranted as a complete new package Warranty on the refrigeration system will be void if new equipment is connected to pre existing used tubing remote condenser remote condensing unit or ice machine head section Part Number STH026 8 12 35 QuietQube Remote Condensing Unit Remote Single C Circuit Line Set Condenser 10670C ICVD0695 IBO670C 10870C ICVD0895 RC IB0870C RC 36 RC 56 11070C ICVD1095 IB1090C ICVD1195 11470C ICVD1495 RC 25 11870 ICVD1895 RC 35 RC 55 12170 ICVD2095 RC 28 RC 38 RC 58 acto Minimum Line Set aia pis as Insulation Thickness RC 26 36 56 5 8 inch 3 8 inch 1 2 13mm 16 mm 10 mm Suction Line 1 4 7mm Liquid Line RC 25 35 55 3 4 inch 1 2 inch 1 2 13mm 19 mm 13 mm Suction Line 1 4 7mm Liquid Line RC 28 38 58 3 4 inch 5 8 inch 1 2 13mm
68. 60 Minute Freeze cycles shut down and flash the SL 1 light on board E02 Long Harvest Long Harvest 3 consecutive 3 5 Minute Harvests logs SL 2 in memory but runs until 500 long harvest cycles occur E03 Power Loss Power Supply Event Log only When power is interrupted to the ice machine the control board will log the event in the ELOG and No Alert stamp the loss of power on power up ed Emp or 1 Liquid Line Temperature too High for Self contained Air Cooled Ice machine Air Cooled go Hi Temp or 9 Condenser Fault Wtr Fault G Board Rev 4 017 Alert only 2 Liquid Line Temperature too High for Self contained Water Cooled ice machine Water Cooled after 10 consecutive trips Condenser Fault E05 HPC Fault High Pressure Cutout HPC The high pressure cutout switch HPCO opened 3 times in 4 hour period E06 Spare Starving E tor for singl V ora oh 9 9 40 consecutive occurrences where the Difference of the Average evaporator inlet T3 and outlet T4 E07 Starving 6 Board Rev 4 017 is greater than 12 F in the last 1 minute of the freeze cycle ELOG E07 Event Log only no alert AirWater Only 10 consecutive occurrences where the Difference of the Average evaporator inlet T3 and outlet T4 E08 TXV Fault malfunction in dual circuit is greater than 12 F in the last 1 minute of the freeze cycle ELOG E07 single evaps TXV Fault Flooding evaporator for single Average compre
69. 8 for your bin The stock bin deflector must be removed and replaced with the correct deflector to prevent injury Warning PERSONAL INJURY POTENTIAL Do not operate any ice machine with the deflector removed REMOVE 1 SCREW ON EACH SIDE REMOVE REMOVE2 DEFLECTOR SCREWS ON EACH SIDE RE INSTALL TOP Part Number STH026 8 12 33 A deflector must be installed on all dual evaporator models used in bin applications lt 2 LOCK IN PLACE WITH PIN 1 SLIDE FORWARD Ice Machine on a Dispenser Installation No deflector is needed for machines that match the size of the dispenser 30 head section on a 30 dispenser unless required by the dispenser manufacturer Adapters are required when a smaller ice machine is going on a larger dispenser 22 machine on a 30 dispenser Important Manitowoc Ice Beverage Ice Machines require an adapter for mounting Adapters are not included with the ice machine dispenser or bin and must be ordered separately When a non Manitowoc adapter is used verify the adapter is compatible with Manitowoc Ice Beverage Ice Machines prior to installation Warning Ice Beverage ice machines adapter plates and adapter covers must be secured to the dispenser to prevent tipping or dislodging during agitation 34 Part Number STH026 8 12 Lineset Applications Caution The 60 month compressor warranty including the 3
70. COMPRESSOR DRAWING HIGH AMPS The continuous amperage draw on start up should not be near the maximum fuse size indicated on the serial tag 186 Part Number STHO026 8 12 DIAGNOSING START COMPONENTS If the compressor attempts to start or hums and trips the overload protector check the start components before replacing the compressor Capacitor Visual evidence of capacitor failure can include a bulged terminal end or a ruptured membrane Do not assume a capacitor is good if no visual evidence is present A good test is to install a known good substitute capacitor Use a capacitor tester when checking a suspect capacitor Clip the bleed resistor off the capacitor terminals before testing Relay The relay has a set of contacts that connect and disconnect the start capacitor from the compressor start winding The contacts on the relay are normally closed start capacitor in series with the start winding The relay senses the voltage generated by the start winding and opens the contacts as the compressor motor starts The contacts remain open until the compressor is de energized RELAY OPERATION CHECK 1 Disconnect wires from relay terminals 2 Verify the contacts are closed Measure the resistance between terminals 1 and 2 No continuity indicates open contacts Replace the relay 3 Check the relay coil Measure the resistance between terminals 2 and 5 No resistance indicates an open coil Replace the relay Part Number STH
71. GE THICKNESS PLACE 9 32 DRILL BIT HERE TO SET INTIAL Ice Thickness Check 3 Make sure the ice thickness probe wire doesn t restrict movement of the probe Part Number STH026 8 12 103 Sequence of Operation QUIETQUBE MODELS NOTE The power button must be depressed and the water curtain ice dampers must be in place on the evaporator before the ice machine will start INITIAL START UP OR START UP AFTER AUTOMATIC SHUT OFF 1 Water Purge Before the compressor starts the water pump and water dump solenoid are energized to purge the ice machine of old water This feature ensures that the ice making cycle starts with fresh water 2 Refrigeration System Start Up Ice Machine Head Section The harvest valve s air pump s liquid line solenoid valve and CVD relay energize to equalize high and low side refrigeration pressure After 10 seconds the harvest valve s and air pump s de energize ICVD Condensing Unit The low pressure switch closes and sends 24 volts to the control board The control board completes the circuit through the CVD relay and sends 24 volts to the contactor coil and energizes the compressor 104 Part Number STH026 8 12 FREEZE SEQUENCE 3 Prechill The compressor lowers the temperature of the evaporator s before the water pump is energized The water fill valve will energize and remain on until water completes the water level probe circuit 4 Freeze The water pump s energizes an
72. LPCO cut in If pressure exceeds cut in and the contacts are open replace the LPCO Part Number 5 26 8 12 179 FAN CYCLE CONTROL FUNCTION Cycles the fan motor on and off to maintain proper operating discharge pressure The fan cycle control closes on an increase and opens on a decrease in discharge pressure SPECIFICATIONS Specifications Cut Out Model Cut In Close Open ICVD0695 ICVD0895 ICVD1095 ICVD1195 ICVD1295 250 5 200 5 ICVD1495 1723 kPa 34 1517 kPa 34 ICVD1895 17 23 bar 34 15 17 bar 34 ICVD2095 CHECK PROCEDURE 1 Verify fan motor windings are not open or grounded and fan spins freely 2 Connect manifold gauges to ice machine 3 Hook voltmeter in parallel across the fan cycle control leaving wires attached 4 Refer to chart below ET Reading Should Fan FCC Setpoint Be Should Be Above Cut In 0 Volts Running Below Cut Out Line Voltage Off 180 Part Number STHO026 8 12 THERMISTORS FUNCTION Thermistor resistance values change with temperature The value supplied to the control board is used to identify temperature at the thermistor location SPECIFICATIONS Temperature of Thermistor Resistance C F K Ohms x 1000 30 20 22 4 820 85 466 35 20 10 4 14 466 35 269 05 10 0 14 32 269 05
73. N euuey W jeuonoauo cu 592 NI 5215 38h25 35i z eseud HOLVOIQNI ON 90 0 09 3 2010 8l 1 S SAUL epo ai 90 eoIQ JleH v Q pejooo iv QAO 9 pojooo ieje M aad N pojoo2 ilv N Z a p jo0 9 1972 M paurejuo JS M pajo0 9 19 M Jenb y lt peulejuoo Jes v _ 0 3dALWJSN3dNO2O JdAL WJSN3GNOO 3215 Sano F I 15 Part Number STH026 8 12 ICVD CONDENSING UNITS 5 AIR COOLED ICVD 1495 3 CONDENSING CONDENSING UNITMODEL UNITSERIES 3 PHASE Ice Cube Sizes Regular Dice Half Dice 1 1 8 x 1 1 8 x 7 8 7 8 x 7 8 x 7 8 3 8 x 1 1 8 x 7 8 2 86 x 2 86 2 22 cm 2 22 x 2 22 x2 22 cm 0 95 x 2 86 x 2 22 cm Warning Personal Injury Potential Do not operate equipment that has been misused abused neglected damaged or altered modified from that of original manufactured specifications This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision concerning use of the appliance by a person responsible for their safety 16 Part Number STHO026 8 12 Warning All Manitowoc ice machines require the ice storage system bin dispenser
74. Oil appears clean but smells acrid Refrigeration test kit or acid oil test shows harmful acid content No burnout deposits in open compressor lines Mild contamination cleanup procedure Severe Compressor Burnout symptoms Oil is discolored acidic and smells acrid Burnout deposits found in the compressor lines and other components Severe contamination cleanup procedure 202 Part Number STH026 8 12 CLEANUP PROCEDURE Mild System Contamination 1 Replace any failed components 2 If the compressor is good change the oil 3 Replace the liquid line drier NOTE If the contamination is from moisture use heat lamps during evacuation Position them at the compressor condenser and evaporator prior to evacuation Do not position heat lamps too close to plastic components or they may melt or warp Important Dry nitrogen is recommended for this procedure This will prevent CFC release 4 Follow the normal evacuation procedure except replace the evacuation step with the following A Pull vacuum to 1000 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 5 psig 35 kPa 35 bar B Pull vacuum to 500 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 5 psig 35 kPa 35 bar C Change the vacuum pump oil D Pull vacuum to 500 microns Run the vacuum pump for 1 hour NOTE You may perform a standing vacuum t
75. Operational Analysis 1 2 3 Safety Limits Refer to Analyzing Safety Limits page 113 to eliminate all non refrigeration problems Stops on safety limit 1or2 Stops on safety limit 1or2 Stops on safety limit 1072 Stops on safety limit 1 Freeze Cycle Discharge Pressure If discharge pressure is High or Low refer to freeze cycle high or low discharge pressure problem checklist page 139 amp page 140 to eliminate problems and or components not listed on 1 minute Middle End this table before proceeding into cycle If suction pressure is High or Low refer to freeze cycle high or low suction pressure problem Freeze Cycle checklist page 138 amp page 143 to eliminate problems and or components Suction Pressure not listed on this table before proceeding 1 minute Middle End Suction pressure is Suction pressure is Suction pressure is Suction pressure is High Low or Normal Normal or High High No audible No audible No audible Harvest Valve Audible refrigerant flow through harvest valve in Freeze cycle refrigerant flow through harvest valve in Freeze cycle refrigerant flow through harvest valve in Freeze cycle refrigerant flow through harvest valve in Freeze cycle 9 71 8 920 15 4 I Model QuietQube Single Expansion Valve Operational Analysis 1 2 3 4 Suction Line Temperature Attach a temperature probe on
76. Pressurize to a minimum of 5 psig 35 kPa 35 bar B Change the vacuum pump oil C Pull vacuum to 500 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 5 psig 35 kPa 35 bar D Change the vacuum pump oil E Pull vacuum to 500 microns Run the vacuum pump for 1 hour NOTE You may perform a standing vacuum test to make a preliminary leak check You should use an electronic leak detector after system charging to be sure there are no leaks 10 Charge the system with the proper refrigerant to the nameplate charge 11 Operate the ice machine for one hour Then check the pressure drop across the suction line filter drier A lf the pressure drop is less than 1 psig 7 7 bar the filter drier should be adequate for complete cleanup B Ifthe pressure drop exceeds 1 psig 7 kPa 7 bar change the suction line filter drier and the liquid line drier Repeat until the pressure drop is acceptable 12 Operate the ice machine for 48 72 hours Then remove the suction line drier and change the liquid line drier 13 Follow normal evacuation procedures Part Number 5 26 8 12 205 REPLACING PRESSURE CONTROLS WITHOUT REMOVING REFRIGERANT CHARGE This procedure reduces repair time and cost Use it when any of the following components require replacement and the refrigeration system is operational and leak free Fan cycle control air cooled only Water regul
77. R THEORY OF LIABILITY Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you HOW STATE LAW APPLIES This limited warranty gives you specific legal rights and you may also have rights that vary from state to state or from one jurisdiction to another REGISTRATION CARD To secure prompt and continuing warranty service this warranty registration card must be completed and sent to Manitowoc within thirty 30 days from the sale date Complete the registration card and send it to Manitowoc Part Number STH026 8 12 25 26 This Page Intentionally Left Blank Part Number STH026 8 12 Installation Warning PERSONAL INJURY POTENTIAL Remove all ice machine panels before lifting Warning 11470C 11870C I2170C ice machines are not approved for use on Manitowoc B570 bins Caution The ice machine head section must be protected if it will be subjected to temperatures below 32 F 0 Failure caused by exposure to freezing temperatures is not covered by the warranty STACKING TWO ICE MACHINES ON A SINGLE STORAGE BIN Indigo Model ice machines cannot be stacked However an adapter is available that allows two QuietQube ice machines to be placed side by side on 60 bins ICE DEFLECTOR An ice deflector is required for all ice machines installed on a bin Part Number STH026 8 12 27 Loc
78. Right Harvest Valve Water Inlet Valve Left Harvest Valve Dump Valve Part Number STH026 8 12 227 Refrigeration Tubing Schematics REMOTE CONDENSING UNIT MODELS 10670C 10870C 11070C 11270C Condensing Unit SUCTION COMPRESSOR ACCESS VALVE LINE FILTER VAINE CONDENSER ACCUMULATOR HEAD PRESSURE CONTROL VALVE S TRAP REQUIRED 21 OR GREATER RISE SUCTION LIQUID LINE SHUT OFF SHUT OFF a VALVE Cale al Ice Machine Head Section EVAPORATOR HEAT EXCHANGER T4 Thermistor LLSV HARVEST VALVE DRIER CHECK VALVE T3 Thermistor l l l l l TXV RECEIVER n L ACCESS VALVE Thermistor RECEIVER T2 Thermistor 228 Part Number 5 26 8 12 IB MODELS IB0690C IBO890C Condensing Unit COMPRESSOR SUCTION LINE FILTER ACCESS VALVE CHECK VALVE RH ACCUMULATO CONDENSER S TRAP REQUIRED 21 OR GREATER RISE SUCTION SHUT OFF Ice Machine HEAD PRESSURE CONTROL VALVE LIQUID LINE SHUT OFF Head Section EVAPORATOR HEAT EXCHANGER 4 Thermistor TXV Thermistor LLSV DRIER HARVEST VALVE CHECK VALVE RECEIVER L ACCESS VALVE RECEIVER T2
79. T2 Thermistor 232 Part Number STH026 8 12 This Page Intentionally Left Blank Part Number STH026 8 12 233 234 Part Number STH026 8 12 anifowoc Manitowoc Ice 2110 South 26th Street P O Box 1720 Manitowoc WI 54221 1720 USA Ph 920 682 0161 Fax 920 683 7589 Visit us online at www manitowocice com 2012 Manitowoc Part Number 26 8 12
80. TH026 8 12 Component Check Procedures Electrical Components 155 Control Board Display board and Touch Pad sexe soda 155 Control Board Relay Test 158 Programming A Replacement Board 159 Main Fuse 161 Bin Switch recet bobbie IE 162 Water Level Control Circuitry 165 Ice Thickness Probe 171 High Pressure Cutout HPCO Control 176 Low Pressure Cutout LPCO Control 179 Fan Cycle Control 180 Thermistors 181 Harvest Assist Air Pump 184 Compressor Electrical Diagnostics 185 Diagnosing Start Components 187 Refrigeration Components 190 Head Pressure Control Valve 190 Suction Accumulator Operation 196 Recovery Evacuation Charging Procedures QuietQube Models 197 Connections 198 Recovery Evacuation Procedures 199 Charging Procedures 200 System Contamination Clean Up 201 Determining Severity Of Contamination 201 Cleanup Procedure 203 Replacing Pressure Controls Without Re moving Refrigerant Charge 206 Liquid Line Filter Driers 208 Suction Filter 208 Total System Refrigerant Charge 209 Part Number 5 26 8 12 13 Charts Cycle Times 24 Hour Ice Production Refrigerant Pressure Charts 211 I10680C ICVD0O695
81. THIS LIMITED WARRANTY If a defect arises and Manitowoc receives a valid warranty claim prior to the expiration of the warranty period Manitowoc shall at its option 1 repair the Product at Manitowoc s cost including standard straight time labor charges 2 replace the Product with one that is new or at least as functionally equivalent as the original or 3 refund the purchase price for the Product Replacement parts are warranted for 90 days or the balance of the original warranty period whichever is longer The foregoing constitutes Manitowoc s sole obligation and the consumer s exclusive remedy for any breach of this limited warranty Manitowoc s liability under this limited warranty is limited to the purchase price of Product Additional expenses including without limitation Service travel time overtime or premium labor charges accessing or removing the Product or shipping are the responsibility of the consumer HOW TO OBTAIN WARRANTY SERVICE To obtain warranty service or information regarding your Product please contact us at MANITOWOC ICE 2110 So 26th St P O Box 1720 Manitowoc WI 54221 1720 Telephone 920 682 0161 Fax 920 683 7585 www manitowocice com Part Number 5 26 8 12 23 WHAT IS NOT COVERED This limited warranty does not cover and you are solely responsible for the costs of 1 periodic or routine maintenance 2 repair or replacement of the Product or parts due to normal wear a
82. Thermistor Part Number STH026 8 12 mn Thermistor 229 IB1090C SUCTION COMPRESSOR ACCESS VALVE LINE FILTER CHECK VALVE CONDENSER ACCUMULATOR HEAD PRESSURE S TRAP CONTROL VALVE REQUIRED 21 OR GREATER RISE Ice Machine Head Section LIQUID LINE SHUT OFF VALVE EVAPORATOR 2 HARVEST VALVE SUCTION H7 SHUT OFF 7 VALVE T S HEAT EXCHANGER TXV HARVEST VALVE 1 CHECK VALVE RECEIVER 230 Part Number STH026 8 12 DUAL EVAPORATOR MODELS 11470C 11870C ACCESS VALVE CHECK VALNE SUCTION UA d FILTER CONDENSER ACCUMULATOR COMPRESSOR PRESSURE CONTROL VALVE S Trap Required 21 or Greater Rise SUCTION LIQUID LINE SHUT OFF SHUT OFF VALVE VALVE T4 Thermistor T3 Thermistor VAPORATOR HARVEST VALVE HARVEST VALVE DRIER CHECK VALVE T1 RECEIVER ACCESS Thermistor VALVE RECEIVER T2 Thermistor Part Number STH026 8 12 231 12170C SUCTION COMPRESSOR 1 ACCUMULATOR HEAD PRESSURE CONTROL VALVE CONDENSER S Trap Required 21 or Greater Rise SUCTION LIQUID LINE SHUT OFF SHUT OFF VALVE VALVE 4 Thermistor HARVEST VALVE DRIER RECEIVER ACCESS VALVE Thermistor RECEIVER
83. Unit Model Characteristics vary depending on operating conditions CYCLE TIMES Freeze Time Harvest Time Cycle Time Air Temp Freeze Time Entering a Harvest Condenser Water Temperature F C Time 50 10 70 21 90 32 20 70 29 to 21 8 5 9 8 9 3 10 7 10 0 11 5 90 32 9 5 11 0 10 8124 114 131 75 25 100 38 11 2 12 9 12 3 14 1 13 3 15 2 110 43 13 0 14 9 14 0 16 0 14 9 17 0 1Times in minutes Dice cube 24 HOUR ICE PRODUCTION Air Temp Water Temperature F C Entering Condenser 1 70 21 32 50 10 0 90 3 20 to 70 29 to 21 825 770 720 90 32 750 675 640 100 38 650 600 560 110 43 570 535 505 1Based on average ice slab weight of 5 75 6 50 Ib OPERATING PRESSURES Air Temp Freeze Cycle Harvest Cycle Entering Discharge Suction Discharge Suction Condenser Pressure Pressure Pressure Pressure TC psig psig psig psig 200050 230260 4525 180 205 60 80 70 21 250 275 55 30 180 205 75 105 80 27 260 290 60 31 185 215 80 110 90 32 265 300 60 32 190 220 80 110 100 38 300 370 70 34 200 250 90 115 110 43 310 385 75 35 230 260 95 115 Part Number STH026 8 12 215 11070C ICVD1095 Remote Air Cooled Condensing Unit Model Characteristics vary depending on operating conditions CYCLE TIMES Freeze Time Harvest Time Total Cycle Time Freeze Time Ha
84. achine head section and the ICVD condensing unit Three point requires connections between the receiver access valve and the high and low side access valves on the front or rear of the ice machine to recover and evacuate the entire system CONNECTIONS MUST BE MADE AT THREE POINTS ON HEAD SECTION FOR COMPLETE REFRIGERANT RECOVERY ON ALL QUIETQUBE MODELS Refrigerant Recovery Connections Ice Machine Head 198 Part Number STHO026 8 12 RECOVERY EVACUATION PROCEDURES 1 Press the power button to stop the ice machine and disconnect all power to the ice machine and condensing unit 2 Install manifold gauges charging scale and recovery unit or two stage vacuum pump 3 Open high and low side on the manifold gauge set 4 Perform recovery or evacuation A Recovery Operate the recovery unit as directed by the manufacturer s instructions B Pressure test the system C Evacuation prior to recharging Evacuate to 500 microns Then allow the pump to run for an additional hour 5 Refer to Charging Procedures Part Number STH026 8 12 199 CHARGING PROCEDURES 1 2 8 9 The ice machine must be off Close the vacuum pump valve and the low side manifold gauge valve Open the refrigerant cylinder and add the prop
85. achine will not start an ice making cycle and the display indicates Curtain Open ice machine will run in the clean cycle Bin Switch Fails Closed When running a Long Harvest alert is displayed and safety limit 2 indicated e May be off on a safety limit 2 harvest cycle continues after ice opens and closes the ice damper harvest cycle is 3 5 minutes Part Number STH026 8 12 163 DIAGNOSTICS 1 Verify bin switch curtain damper and curtain damper magnet are in place Press the Menu button Scroll down to Service and press right arrow Scroll down to Diagnostics and press right arrow Scroll down to Inputs and press right arrow to display curtain switch readings Curt SW1 Curt SW2 etc 2 Open and close the ice damper s repeatedly while observing the display and control board lights A Curtain switch cycles open closed and control board light energizes de energizes Bin switch is operating normally B Curtain switch remains closed and control board light remains on Go to step 3 C Curtain switch remains open and control board light remains off Go to step 3 3 Disconnect bin switch wire from control board 4 Jumper control board bin switch wire to ground press the power button and observe the display and control board lights A Curtain switch closes control board light energizes and ice machine starts Replace bin switch B Curtain switch remains open and cont
86. actory defaults refer to page 80 68 Part Number STH026 8 12 Set Up Menu From the Main menu use the Down arrow to navigate to Set Up and press the Checkmark Select and customize machine settings on this menu Press the Left arrow to return to previous screens Set Up 4 Time amp Date Time Configuration m m Password On Edit Password AuCS RunTime Air Filter lt Mater Filter Ice Bin Sensor USB Setup Exit Set Up Menu Part Number STH026 8 12 69 LANGUAGE 1 From the Set Up menu use the Down arrow to highlight Language 2 Press the Checkmark You can choose to view the display in a language other than English by highlighting your choice and pressing the Checkmark Selecting one language will deselect the others 3 When the check reflects your preference use the Down arrow to navigate to Exit and press the Checkmark The display will return to the Set Up menu TIME amp DATE When the ice machine is installed the correct time and date needs to be set for its location Mo Daly Yir Diay Mo Yir 12 Hour p 24 Holulr Set the Time and Date 1 Press the Menu button 2 Press the Down arrow until Set Up is highlighted bracketed 3 Press the Checkmark The Set Up menu will be displayed and Time amp Date will be highlighted bracketed 70 Part Number
87. and pressing the Checkmark Selecting one will deselect the other When the two checks reflect your preference use the Down arrow to navigate to Exit and press the Checkmark The display will return to the Set Up menu UNITS 1 2 72 From the Set Up menu use the Down arrow to highlight Units Press the Checkmark On this screen you can choose whether the ice machine will display measurements in Celsius or Fahrenheit kilograms or pounds and gallons or liters by highlighting your choice of each pair and pressing the Checkmark Selecting one of each pair will deselect the other Make sure to navigate with the Down arrow to make all three choices When the three checks reflect your preferences use the Down arrow to navigate to Exit and press the Checkmark The display will return to the Set Up menu Part Number STHO026 8 12 ICE CLARITY In areas with poor potable water quality the ice machine may produce cloudier ice Setting Ice Clarity to ON will add additional water during the freeze cycle to dilute the water that contains a high content of dissolved solids in the water trough This feature decreases production and increases water usage A water filter is recommended to produce the highest quality ice while maintaining the least expensive mode of operation 1 2 From the Set Up menu use the Down arrow to highlight Ice Clarity Press the Checkmark On this screen you can choose to turn the i
88. ard The data can copied from the defective control board refer to Exporting Data to a Flash Drive on page 100 or entered manually through the Indigo interface Manual Setup Board Install Date Input Model Number Input Serial Number Condenser condensing unit serial number USB Setup Insert Drive Press Checkmark and wait for completion Exit USB SETUP USB Stick Download Firmware Insert drive and wait for completion Download Configuration Insert drive and wait for completion Export All Insert drive and wait for completion Export Setup Insert drive and wait for completion Exit 90 Part Number STHO026 8 12 EVENT LOG MENU From the Service menu use the Down arrow to navigate to Event Log and press the Checkmark Ensure View ELog is highlighted and press the Checkmark to see the first event code when it occurred and how many times Use the Down arrow to view information on subsequent event codes For more information on event codes see Service Menu Use the Left arrow to return to the Event Log menu To clear the event log In the Event Log Menu use the Down arrow to highlight Clear ELog and press the Checkmark Press the Left arrow to return to previous Screens Event Log 7 view ELog Clear ELog Exit Event Log Menu Part Number STH026 8 12 91 EVENT LOG Refer to the following table for Event Code descriptions
89. as not analyzed correctly or the problem component is not covered by the analysis table Part Number STH026 8 12 123 71 8 920 15 JequinN Freeze Cycle Refrigeration System Operational Analysis Tables Model QuietQube Single Expansion Valve Operational Analysis 1 2 3 Ice Production Published 24 hour ice production Calculated actual ice production NOTE The ice machine is operating properly if the ice fill patterns is normal and ice production is within 1096 of charted capacity See QuietQube Models Ice Production Check on page 131 Installation and Water System All installation and water related problems must be corrected before proceeding with chart See QuietQube Models Installation Visual Inspection Checklist on page 133 Ice Formation Pattern See QuietQube Models Ice Formation Pattern on page 135 Ice formation is extremely thin on outlet of evaporator Or No ice formation on the entire evaporator Ice formation normal Or Ice formation is extremely thin on outlet of evaporator Or No ice formation on entire evaporator Ice formation normal Or Ice formation is extremely thin on inlet of evaporator Or No ice formation on entire evaporator Ice formation normal Or No ice formation on entire evaporator YCOHLS JequinN Sc I Model QuietQube Single Expansion Valve
90. ating valve water cooled only High pressure cut out control Low Pressure cut out control High side service valve Low side service valve Important This is a required in warranty repair procedure 1 Disconnect power to the ice machine 2 Follow all manufacturer s instructions supplied with the pinch off tool Position the pinch off tool around the tubing as far from the pressure control as feasible See the figure on next page Clamp down on the tubing until the pinch off is complete Warning Do not unsolder a defective component Cut it out of the system Do not remove the pinch off tool until the new component is securely in place 206 Part Number STH026 8 12 USING PINCH OFF TOOL 3 Cut the tubing of the defective component with a small tubing cutter 4 Solder the replacement component in place Allow the solder joint to cool 5 Remove the pinch off tool 6 Re round the tubing Position the flattened tubing in the proper hole in the pinch off tool Tighten the wing nuts until the block is tight and the tubing is rounded NOTE The pressure controls will operate normally once the tubing is re rounded Tubing may not re round 10096 Part Number STH026 8 12 207 LIQUID LINE FILTER DRIERS The filter driers used on Manitowoc ice machines are manufactured to Manitowoc specifications A Manitowoc drier has dirt retaining filtration with fiberglass filters on
91. ation of Ice Machine HEAD SECTION The location selected for the ice machine head section must meet the following criteria If any of these criteria are not met select another location 28 The location must be free of airborne and other contaminants The air temperature must be at least 35 F 1 6 but must not exceed 110 F 43 C Ice Making Water Inlet Water Pressure must be at least 20 psi 1 38 bar but must not exceed 80 psi 5 52 bar The location must not be near heat generating equipment or in direct sunlight and protected from weather The ice machine must be protected if it will be subjected to temperatures below 32 F 0 Failure caused by exposure to freezing temperatures is not covered by the warranty See Removal from Service Winterization Part Number STH026 8 12 ICE BEVERAGE MODELS Ice Beverage Ice Machines require that a proper ice level be maintained when installed on a dispenser Ice Beverage machines ship with a ice level management sensor pre installed The ice machine head is installed with the electrical inlet water supply inlet refrigeration tubing and water drain entering from the back of the ice machine The ice machine head section contains a service loop that must remain installed between the ice machine head section and line set Sufficient tubing length must be available to allow 180 rotation of the ice machine Maintain a 3 space between the back of the ice machin
92. both the inlet and outlet ends This is very important because ice machines have a back flushing action that takes place during every Harvest cycle The size of the filter drier is important The refrigerant charge is critical Using an improperly sized filter drier will cause the ice machine to be improperly charged with refrigerant Important Driers are covered as a warranty part The drier must be replaced any time the system is opened for repairs SUCTION FILTER The suction filter on QuietQube ICVD condensing units traps particulate only and do not contain a desiccant The filter needs replacement when 1 The pressure drop across the drier exceeds 2 psig 2 A compressor is replaced 3 Refrigeration system contains contaminants 208 Part Number STHO026 8 12 TOTAL SYSTEM REFRIGERANT CHARGE NOTE All machines listed use R 404A refrigerant This information is for reference only Refer to the ice machine serial number tag to verify the system charge Serial plate information overrides information listed on these pages QuietQube ICVD Models Condensing Refrigerant Line Set Model Unit Charge Length 10 75 Ibs 0 50 ft 10680 10680C 4 88kg 0 15 IBO690C 12 25 51 100 ft 5 55 kg 15 30 M 11 Ibs 0 50 ft 5 kg 0 15 M 10870C ICVD0895 15 Ibs 51 100 ft 6 8 kg 15 30 M 11 Ibs 0 50 ft 5 kg 0 15 1B0890C ICVD0895 13 Ibs 5
93. bypass and the ice machine malfunctions Lower ambient conditions can be simulated by rinsing the condenser with cool water during the freeze cycle T Probable Corrective Condition Cause Measure Discharge Pressure High Valve stuck in Replace Liquid Line Temperature bypass valve Hot Discharge Pressure Low Valve not Replace Liquid Line Temperature valve Cold ypass ng Discharge Pressure Low Ice Machine Refrigerant Liquid Line Temperature Low on Charge Hot Charge Verification 192 Part Number STH026 8 12 Harvest Cycle QUIETQUBE REMOTE CONDENSING UNIT QuietQube ice machines may fail in the harvest cycle when the refrigerant charge and ambient temperature create a marginal undercharge of refrigerant The ice machine may be able to make a full sheet of ice but fails in the harvest cycle when the receiver runs out of liquid refrigerant A safety limit 2 will result when the ice machine is unable to harvest Undercharge Symptoms e Safety limit 1 or Safety limit 2 in control board memory a flashing triangle alert and after pressing left arrow Long Freeze or Long Harvest is displayed Harvest cycle suction pressure is low Harvest cycle discharge pressure is low Liquid line entering receiver feels warm to hot in the freeze cycle Overcharge Symptoms Safety limit 2 in control board memory a flashing triangle alert and after pressing left arrow Long
94. ce clarity feature ON or OFF by highlighting your choice and pressing the Checkmark Selecting one will deselect the other When the check reflects your preference use the Down arrow to navigate to Exit and press the Checkmark The display will return to the Set Up menu LCD BRIGHTNESS Here the brightness of the LCD display can be adjusted 1 2 From the Set Up menu use the Down arrow to highlight LCD Bright Press the Checkmark You will see one of four checkmarks indicating the brightness levels of the display Level 1 is one checkmark level 2 is two checkmarks Level 3 is three checkmarks etc Use the Up and Down arrows to select your preference When the checkmarks reflect your preference press the Checkmark The display will return to the Set Up menu Part Number STH026 8 12 73 Password Entry A password is not required although a password can be turned on to prevent unauthorized control setting modification You can use the Factory Default Password of 1234 or enter a four digit custom pin number of your choosing To turn on the password feature use the following procedure 1 Press the Menu button 2 From the Main menu use the Down arrow to highlight setup and press the Right arrow 3 Use the Down arrow to highlight Password ON and press the Right arrow 4 Press the Right arrow again with Enter Passwrd highlighted and a cursor will flash 5 Use the Up amp Down arrows to enter
95. ct the other 3 You can also choose the time interval from this screen by highlighting Set Interval and pressing the Checkmark 4 Press the Left arrow to return to previous screens and to the Set Up menu Part Number STH026 8 12 75 IAUCS RUNTIME Automatic Cleaning System is an optional accessory and will perform a cleaning cycle at a set time interval 1 From the Set Up menu use the Down arrow to highlight AuCS RunTime 2 Press the Checkmark On this screen you can choose to turn the feature ON or OFF by highlighting your choice and pressing the Checkmark Selecting one will deselect the other 3 You can also choose the time interval from this screen by highlighting Set Interval and pressing the Checkmark 4 Press the Left arrow to return to previous screens and to the Set Up menu AIR FILTER The ice machine has a feature that displays a clean air filter reminder at a set time interval 1 From the Set Up menu use the Down arrow to highlight Air Filter 2 Press the Checkmark On this screen you can choose to turn the reminder to AUTO or OFF by highlighting your choice and pressing the Checkmark Selecting one will deselect the other 3 You can also choose the time interval from this screen by highlighting Set Interval and pressing the Checkmark 4 Press the Left arrow to return to previous screens and to the Set Up menu 76 Part Number STHO026 8 12 WATER FILTER The ice machine has a feature that disp
96. ctual settings can be adjusted In these screens use the Up and Down arrows to make changes to the value underlined Move the cursor from digit to digit using the Right and Left arrows Use the Checkmark to move the cursor down one line Exit and re enter the screen to start again at the top y X Miej INIS IO LENSI 75 5 Selections When parentheses appear they indicate a selection is available by pressing Checkmark while the line is highlighted If the choice is exclusive selecting it with the Checkmark will uncheck another selection That is in the above Time Config example selecting Day Mo Yr will deselect Mo Day Yr Part Number 5 26 8 12 65 Alerts and Messages When messages and alerts exist they will be highlighted and can be selected with the Left arrow Alerts displayed will have priority over messages lt TN For example if alerts are appearing in the fourth line of the display 1 Press the Left arrow A list of alerts will appear in the display 2 Choose the alert you wish to address by moving the highlight brackets with the Down arrow 3 Press Checkmark again A screen appears with the date time and total number of times an alert has occurred Pressing the Down arrow will list some possible causes for the alert At the bottom of
97. d on this table before proceeding Suction pressure is Suction pressure is Suction pressure is Suction pressure is High Low or Normal High or Normal High ZL 8 YCOHLS JequinN 621 Twin Expansion Valve 11470 1870 2170 Models Operational Analysis 1 2 3 4 Harvest Valve Audible refrigerant flow through left or right valve in Freeze cycle No audible refrigerant flow through left or right valve in Freeze cycle No audible refrigerant flow through left or right valve in Freeze cycle No audible refrigerant flow through left or right valve in Freeze cycle Suction Line Temperature Attach a temperature probe on the suction line within 6 in of the shut off valve outlet Suction line temperature at the suction shut off valve is greater than 10 F Suction line temperature at the suction shut off valve is greater than 10 F Suction line temperature at the suction shut off valve is less than 10 F Suction line temperature at the suction shut off valve is greater than 10 F 12 2 C 12 2 C 12 2 C 12 2 C Record the low event at the at the end of the Freeze at the end of the Freeze atthe end ofthe Freeze at the end of the Freeze end of the Freeze cycle cycle cycle cycle cycle Final Analysis Vow on chan Refrigerant ge Enter total number of boxes Compressor checked in each column TXV
98. d water flows over the evaporator After water contacts the water level probe the water fill valve de energizes The control board will automatically cycle the water fill valve fill time limit The valve energizes once in the pre chill and up to twice in the freeze cycle The freeze cycle continues until the six minute freeze lock expires and enough ice has formed to send a signal from the ice thickness probe to the control board Part Number STH026 8 12 105 HARVEST SEQUENCE 5 Water Purge The air pump s and the harvest valve s open at the beginning of the water purge to divert refrigerant gas into the evaporator The water pump continues to run and the water dump valve energizes to purge the water in the water trough ICVD Condensing Unit When the refrigerant pressure is low enough to open the fan cycling pressure control the condenser fan motor stops 6 Harvest The air pump s remain energized and the harvest valve s remains open The refrigerant gas warms the evaporator causing the cubes to begin melting and slide as a sheet off the evaporator and into the storage bin Single evaporator models The sliding sheet of cubes opens the water curtain ice damper and bin Switch The momentary opening and re closing of the bin switch will terminate the harvest sequence and return to the freeze sequence Step 3 4 Twin evaporator models The sliding sheet of cubes opens the ice damper and bin switch The momentar
99. e Cubes Are Melted After Harvest START Back of cubes are melted YES at end of harvest cycle NO ce remains frozen to the evaporator at the end of the harvest cycle Y Refer to Symptom 2 Freeze Cycle Operation Analysis Table Is Ice Machine level YES s water flow over the evaporator in the harvest cycle p Level Ice Machine Refer to Dump Valve Diagnostics YSL NO s the evaporator dirty or damaged 9ZOHLS JequinN Dry evaporator first then check YES NO Y v Refer to Symptom 2 Refer to Cleaning Freeze Cycle Operational Procedures Analysis Table Component Check Procedures Electrical Components CONTROL BOARD DISPLAY BOARD AND TOUCH PAD FUNCTION The control board display board and touch pad provide user input and control the ice machine sequence of operation NOTE Anytime power is supplied to wires 55 amp 56 on the control board the Display and Micro lights should flash like a heartbeat The two green lights are located on the top right corner of the control board Display Diagnostics Symptom Micro light flashes and display light is off 1 Disconnect both ends of the communication cable running between the control board and the back of the display module and inspect for bent or damaged pins Reconnect after inspection
100. e Freeze cycle The ice machine will remain in the Harvest cycle for 3 5 minutes 7 minutes dual evaporators then initiate a new Freeze cycle Valve remains open in the Freeze cycle Symptoms of a harvest valve remaining partially open during the Freeze cycle can be similar to symptoms of an expansion valve or compressor problem Symptoms are dependent on the amount of leakage in the Freeze cycle A small amount of leakage will cause increased freeze times and an ice fill pattern that is normal As the amount of leakage increases the length of the Freeze cycle increases and the amount of ice on the bottom of the evaporator decreases A small amount of leakage will cause an audible indication as the vapor passes through the valve As the size of the leak increases the audible indication becomes more apparent 144 Part Number STH026 8 12 QuietQube amp Models Analyzing Freeze Cycle Suction Line Temperature Suction line temperature alone cannot diagnose an ice machine However comparing this temperature during the freeze cycle along with using Manitowoc s Symptom 2 Refrigeration System Operational Analysis Table can help diagnose an ice machine malfunction The actual temperature of the suction line varies by model and will change throughout the freeze cycle This makes documenting the normal suction line temperature difficult The key to the diagnosis is observing the compressor suction line temperature during the
101. e Head Serial Number Time Config Statistics Diagnostics Condenser Serial Number Units Exit Manual Harvest Warranty Ice Clarity Replace Control Board Install Date LCD Brightness USB Setup Manufacture Date Password On Event Log Main Software Version Edit Password Press to power ON OFF Exit Display Software Version Clean Minder Exit AuCS Run Time Press to access cleaning function Water Filter MICE ask ress to access Main Menu USB Setup Exit 2 ress to select menu sub menu option Part Number STH026 8 12 Navigate Menus 4 050 63 Display Panel Navigation Language gt Timell amp Dlaitie gt Timell gt Units gt v Highlights Brackets indicate if a line on the screen is highlighted or actionable Move the brackets from line to line using the Down or Up arrow Move the brackets down from the fourth line to view more of the menu displayed Arrows Two kinds of arrows give cues to additional information gt symbols show that another screen is available by pressing Checkmark or gt while a line is highlighted W and A symbols indicate the limits of the screen viewed NOTE Another cue to the length of a menu screen is that Exit is the last item 0171 24 1110 141 108 gt 64 Part Number STHO026 8 12 Cursor A cursor flashing rectangle is used within lines where a
102. e and the back of the dispenser to allow room for the refrigeration line set service loop The water inlet and electrical connection must contain a service loop to allow future service and maintenance access The drain line must contain a union or other suitable means of disconnection at the ice machine head section The location must be free of airborne and other contaminants The air temperature must be at least 35 F 1 6 but must not exceed 110 F 43 The location must not be near heat generating equipment or in direct sunlight Part Number STH026 8 12 29 LOCATION OF ICVD CONDENSING UNITS The location selected for the ICVD Condensing Unit must meet the following criteria If any of these criteria are not met select another location 30 ICVD0895 ICVD1095 ICVD1495 ICVD1895 ICVD2195 Only The air temperature must be at least 20 F 28 9 C but must not exceed 130 F 54 4 ICVD695 ICVD1195 ICVD2195 IC VD3095 Only The air temperature must be at least 20 F 28 9 C but must not exceed 120 F 48 9 The location must not allow exhaust fan heat and or grease to enter the condenser The location must not obstruct airflow through or around the condensing unit See below for clearance requirements Part Number STHO026 8 12 Clearance Requirements 10680 10870 IceMachine c e D 11070 12170 Head Section Um a
103. e table starting on page 211 for ice machine being checked Use the operating conditions determined in step 1 to find the published normal discharge pressures Freeze Cycle Harvest Cycle 3 Perform an actual suction pressure check Freeze Cycle psig kPa 1 Minute into the Freeze Cycle Middle of Freeze Cycle End of Freeze Cycle 4 Compare the actual suction pressure step 3 with the published suction pressure step 2 NOTE The suction pressure is normal when the actual pressure falls within the published pressure range for the ice machine s operating conditions It is normal for the suction pressure to be higher at the beginning of the Freeze cycle when load is greatest then drop throughout the Freeze cycle Part Number 5 26 8 12 141 QuietQube Models Suction Pressure High Checklist Improper Installation e Refer to Installation Visual Inspection Checklist page 133 Discharge Pressure Discharge pressure is too high and is affecting suction pressure refer to Freeze Cycle Discharge Pressure High Checklist page 139 Improper Refrigerant Charge e Overcharged also see Freeze Cycle Discharge Pressure High Checklist page 139 Wrong type of refrigerant e condensable in system Components Harvest valve leaking flooding Defective compressor Other Non Manitowoc components in system 142 Part Number STHO026 8 12 MODELS SUCTION PRESSURE
104. eeze when the ice machine is low on refrigerant 2 Find the refrigerant leak The ice machine must operate with the nameplate charge If the leak cannot be found proper refrigerant procedures must still be followed Change the liquid line drier Then evacuate and weigh in the proper charge 3 Verify refrigerant charge by weight when recovering to prevent misdiagnosis of the expansion valve 146 Part Number STH026 8 12 COLUMN 3 TXV FLOODING OR REFRIGERANT OVERCHARGE A loose or improperly mounted expansion valve bulb causes the expansion valve to flood Check bulb mounting insulation etc before changing the valve Verify refrigerant amount is correct by weighing recovered refrigerant before replacing a TXV COLUMN 4 COMPRESSOR Replace the compressor To receive warranty credit the compressor ports must be properly sealed by crimping and soldering them closed Part Number 5 26 8 12 147 SYMPTOM 3 HARVEST PROBLEMS Normal Ice Cube Melted Out Ice Cube Definition of a harvest problem At the end of a 3 5 minute harvest cycle 7 minutes dual evaporators the slab s of ice is still contacting the evaporator The slab of ice may or may not be removable by hand Harvest problems can be split into two categorizes Melted sheet of cubes at the end of the harvest cycle Ice can be removed rather easily by hand The back of the cubes are misshapen and melted This indicates something is on the evaporator prevent
105. enu From the Main menu use the Down arrow to navigate to Service and press the Checkmark This menu is intended for the use of trained service personnel Below is an overview of the service menu The following pages list the navigation options available by drilling into the menus with the Right arrow Service Data History ealTime Data Diagnostics 3 lt D er m lt 3 ct T o 4 Exit s y 00000000 00000000 00000000 00000000 00000000 00000000 Lifetime Exit Time amp Temp nputs Outputs Exit Control Board Temp Sensors nputs Exit Hrvst Started Exit anual Setup USB Setup Exit USB Stick Exit View ELog Clear ELog Exit 84 Part Number STHO026 8 12 oumojr F E S Juang njes Wodxy y Aeq uang 71 ynduy e Aeg uang 349 d z uang duel onda Aeg juang Jeo yuanga 3 18812 S peuels 9 3 7285 ASN 395 jenuew eje A dns pa 100 idey ende ponsoubelq dni 1 85 Part Number 5 26 8 12 DATA HISTORY Press the Checkmark with Data History highlighted to
106. er refrigerant charge shown on nameplate into the system high side receiver service valve and discharge line shut off valve If the high side does not take the entire charge close the high side on the manifold gauge set Start the ice machine and wait until the freeze cycle starts then add the remaining charge through valves on back of ice making head or through valves on suction filter Disconnect the manifold gauge set from the liquid line shut off valve Open the high and low side valves on the manifold gauge set Any refrigerant in the lines will be pulled into the low side of the system Allow the pressures to equalize while the ice machine is in the freeze cycle Disconnect the manifold gauge set from the suction line shut off valve Install and torque all valve caps NOTE Check for refrigerant leaks after all valve caps have been installed 200 Part Number STH026 8 12 System Contamination Clean Up General This section describes the basic requirements for restoring contaminated systems to reliable service Important Manitowoc Ice assumes no responsibility for the use of contaminated refrigerant Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company DETERMINING SEVERITY OF CONTAMINATION System contamination is generally caused by either moisture or residue from compressor burnout entering the refrigeration system
107. er to the ice machine and dispenser at the electric service switch box and turn off the water supply before proceeding Follow the procedure below to remove the water inlet valve 1 Remove the 1 4 hex head screws 2 Remove clean and install the filter screen 4 Hex Head Screws Part Number STH026 8 12 57 Water Dump Valve The water dump valve normally does not require removal for cleaning To determine if removal is necessary 1 Locate the water dump valve 2 Press the power button and stop ice making 3 While the ice machine is in the freeze mode check the water trough to determine if the dump valve is leaking If there is no or little water in the water trough during the freeze cycle the dump valve is leaking A If the dump valve is leaking remove disassemble and clean it B If the dump valve is not leaking do not remove it Instead follow the Ice Machine Cleaning Procedure Follow the procedure below to remove the dump valve Warning Disconnect the electric power to the ice machine at the electric service switch box and turn off the water supply before proceeding 4 If so equipped remove the water dump valve shield from its mounting bracket 5 Leaving the wires attached twist coil and rotate it counter clockwise1 4 turn 6 Lift the coil assembly off the valve body 7 Remove the spring plunger and nylon gasket from the valve body NOTE At this point the water
108. erage for your new ice machine Part Number 5 26 8 12 19 COMMERCIAL WARRANTY COVERAGE Manitowoc Ice hereinafter referred to as the warrants for a period of thirty six months from the installation date except as limited below that new ice machines manufactured by the COMPANY shall be free of defects in material or workmanship under normal and proper use and maintenance as specified by the COMPANY and upon proper installation and start up in accordance with the instruction manual supplied with the ice machine The COMPANY S warranty hereunder with respect to the compressor shall apply for an additional twenty four months excluding all labor charges and with respect to the evaporator for an additional twenty four months including labor charges The obligation of the COMPANY under this warranty is limited to the repair or replacement of parts components or assemblies that in the opinion of the COMPANY are defective This warranty is further limited to the cost of parts components or assemblies and standard straight time labor charges at the servicing location Time and hourly rate schedules as published from time to time by the COMPANY apply to all service procedures Additional expenses including without limitation travel time overtime premium material cost accessing or removal of the ice machine or shipping are the responsibility of the owner along with all maintenance adjustments cleaning and
109. est to make a preliminary leak check You should use an electronic leak detector after system charging to be sure there are no leaks 5 Charge the system with the proper refrigerant to the nameplate charge 6 Operate the ice machine Part Number 5 26 8 12 203 Severe System Contamination 1 Remove the refrigerant charge 2 Remove the compressor and inspect the refrigeration lines If burnout deposits are found install a new harvest valve replace the manifold strainer TXV and harvest pressure regulating valve 3 Wipe away any burnout deposits from suction and discharge lines at compressor 4 Sweep through the open system with dry nitrogen Important Refrigerant sweeps are not recommended as they release CFCs into the atmosphere 5 Install a new compressor and new start components 6 Install a suction line filter drier with acid and moisture removal capability Place the filter drier as close to the compressor as possible 7 Install an access valve at the inlet of the suction line drier 8 Install a new liquid line drier and suction filter on QuietQube condensing units 204 Part Number STH026 8 12 Important Dry nitrogen is recommended for this procedure This will prevent CFC release 9 Follow the normal evacuation procedure except replace the evacuation step with the following A Pull vacuum to 1000 microns Break the vacuum with dry nitrogen and sweep the system
110. ghting your choice and pressing the Checkmark Selecting one will deselect the other 3 When the check reflects your preference use the Down arrow to navigate to Exit and press the Checkmark The display will return to the Set Up menu 78 Part Number STH026 8 12 ICE BIN LEVEL SENSOR Ice bin sensor is an optional accessory that allows the ice level in the bin to be set to one of three different levels The bin level can be set seasonally to match usage which results in lower energy costs and fresher ice 1 From the Set Up menu use the Down arrow to highlight Ice Bin Sensor 2 Press the Checkmark On this screen you can choose to set the ice level to Low Medium or High by highlighting your choice and pressing the Checkmark Selecting one will deselect the other When the check reflects your preference use the Down arrow to navigate to Exit and press the Checkmark The display will return to the Set Up menu USB SETUP Refer to Upgrading Firmware with a Flash Drive and Exporting Data to a Flash Drive for more information on this setting Flash drives must be correctly sized and formatted 2 gigabytes or smaller Fat 32 file system 512 allocation units Refer to page 94 for full specification and formatting details Part Number 5 26 8 12 79 Energy Saver Menu From the Main menu use the Down arrow to navigate to Energy Saver and press the Checkmark Set up an energy saving ice program enable the Water Miser
111. ice purchases Labor covered under this warranty must be performed by a COMPANY Contracted Service Representative or a refrigeration service agency as qualified and authorized by the COMPANY S local Distributor The COMPANY S liability under this warranty shall in no event be greater than the actual purchase price paid by customer for the ice machine 20 Part Number STH026 8 12 The foregoing warranty shall not apply to 1 any part or assembly that has been altered modified or changed 2 any part or assembly that has been subjected to misuse abuse neglect or accidents 3 any ice machine that has been installed and or maintained inconsistent with the technical instructions provided by the COMPANY or 4 any ice machine initially installed more than five years from the serial number production date This warranty shall not apply if the Ice Machine s refrigeration system is modified with a condenser heat reclaim device or parts and assemblies other than those manufactured by the COMPANY unless the COMPANY approves these modifications for specific locations in writing THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES OR GUARANTEES OF ANY KIND EXPRESSED OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE In no event shall the COMPANY be liable for any special indirect incidental or consequential damages Upon the expiration of the warranty period the COMPANY S liability under
112. ies blue control boards will go directly to the Replacement Control Board screen and pause for input Select either Manual or USB setup option Eseries beige control boards require navigation to the Replacement Control Board Repl Cntl Bd Screen 1 Press the Menu button 2 Press the Down arrow until Service is highlighted then press the Checkmark 3 Scroll down to Replacement Control Board and press the Checkmark 4 Select Manual Setup and press the Checkmark Verify the date correctly auto populates e Yes Goto step 5 No Press the right arrow to activate the cursor then use up down arrows to enter the correct date Part Number STH026 8 12 159 5 160 Scroll down until brackets are in the space below Input Model Press the right arrow to activate the blinking cursor then use the up down arrows to select the first character in the model number Use the right arrow to move to the next space Add characters in this manner until the model number is complete The model must include the dash and the last three numbers to indicate the electrical requirements example 261 Press the right arrow until the cursor disappears Scroll down until brackets are in the space below Input Serial Press the right arrow to activate the blinking cursor then use the up down arrows to select the first character in the serial number Use the right arrow to move to the next space Add characters in
113. igeration affect It is normal to see frost on the accumulator suction line and compressor suction port in the freeze cycle The suction accumulator empties within the first 5 minutes of the freeze cycle When the refrigeration affect ends liquid refrigerant has been removed the suction line between the accumulator and compressor will increase in temperature The suction line temperature increases 20 plus degrees within 2 minutes after the liquid has been removed Temperature Increases 20 52 18 7 Minutes Minutes 6 Minutes 1 2 3 4 5 Minute Minutes Minutes Minutes Minutes The time needed to remove the liquid refrigerant will vary with the ambient temperature and the length of the harvest cycle Higher ambient temperatures shorter harvest cycles faster removal of liquid refrigerant from the accumulator and greater suction line temperature increases 196 Part Number STHO026 8 12 Recovery Evacuation Charging Procedures QUIETQUBE MODELS Do not purge refrigerant to the atmosphere Capture refrigerant using recovery equipment Follow the manufacturer s recommendations Important Manitowoc Ice assumes no responsibility for the use of contaminated refrigerant Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company Important Replace the liquid line drier after recovering the refrigerant and before evacuating and recharging Use only
114. in in the center and remove it from the right side Slide the left pin out B Remove the water trough Depress tabs on right and left side of the water trough Allow front of water trough to drop as you pull forward to disengage the rear pins C Remove the water level probe Pull the water level probe straight down to disengage Lower the water level probe until the wiring connector is visible Disconnect the wire lead from the water level probe e Remove the water level probe from the ice machine 50 Part Number STH026 8 12 D Remove the ice thickness probe Compress the hinge pin on the top of the ice thickness probe e Pivot the ice thickness probe to disengage one pin then the other The ice thickness probe can be cleaned at this point without complete removal If complete removal is desired disconnect the ice thickness control wiring from the control board E Remove the water distribution tube NOTE Distribution tube thumbscrews are retained to prevent loss Loosen thumbscrews but do not pull thumbscrews out of distribution tube Loosen the two outer screws do not remove screws completely they are retained to prevent loss and pull forward on the distribution tube to release from slip joint Disassemble distribution tube by loosening the two 2 middle thumbscrews and dividing the distribution tube into two pieces Proceed to page 47 Step 7 Part Number STH026 8 12 51 Ice Beve
115. ing the ice slab from releasing Follow the appropriate flow chart in Troubleshooting to determine the cause of the problem A manual cleaning procedure must always be performed when this problem is encountered Normal sheet of cubes at the end of the harvest cycle Ice is difficult to remove from the evaporator by hand Once removed the back of the cubes are square and show no signs of melting This indicates a refrigeration problem The source of the problem could be in the freeze or harvest cycle Use the appropriate flow chart in Troubleshooting to determine the cause of the problem 148 Part Number STH026 8 12 71 8 920H LS JequinN Hed 6v SYMPTOM 3 QUIETQUBE MODELS WITH ICVD CONDENSING UNITS START N T DM Is the Harvest Valve s no Refer to Sequence of Operation X Energized Pi amp Wiring Diagram A YES v Note All pressure readings are taken from the Liquid amp Suction Shut off Valves or access ports at the ice machine head section Are the Harvest Pressures normal YES Is the ice machin wo Correct the N installed correctly V Installation Sa OSL 920 15 JequinN YES Is Head Pressure high amp Suction Pressure low in harvest Replace YES Harvest Valve YES Not a refrigeration zu d No Harvest PSI Normal 39 amp Inspect NO Is Head Pressure low amp Suction Pres
116. inning of the cycle Suction pressure will drop throughout the cycle Verify the pressures are within the range indicated Record beginning of freeze cycle suction pressure one minute after water pump energizes e 50Hz dice and half dice production derate is 12 50Hz regular cube total production derate is 14 Part Number STH026 8 12 211 10680C ICVD0695 Remote Air Cooled Condensing Unit Model Characteristics vary depending on operating conditions CYCLE TIMES Freeze Time Harvest Time Total Cycle Time Freeze Time Harvest Time Cycle Time Air Temp Freeze Time ALLE Water Temperature F C jun F C 50 10 70 21 90 32 20 to 70 29 to 21 8 7 10 0 10 8 12 4 12 3 14 1 90 32 10 3 11 9 11 6 13 3 12 4 14 3 75 2 5 100 38 11 0 12 6 12 2 13 9 13 4 15 3 110 43 12 0 13 8 13 4 15 3 14 9 17 0 1Times in minutes Dice cube 24 HOUR ICE PRODUCTION Air Temp Water Temperature F C Entering Condenser 1 70 21 32 OFC 50 10 0 90 3 n 650 540 480 90 32 560 505 475 100 38 530 485 445 110 43 490 445 405 1Based on average ice slab weight of 4 60 5 20 Ib OPERATING PRESSURES Air Temp Freeze Cycle Harvest Cycle Entering Discharge Suction Discharge Suction Condenser Pressure Pressure Pressure Pressure TC psig psig psig psig 20 to 50 29 to 10 200 250 44 26 180 210 65 85 70 21 235 255 50 28 185
117. its In addition to standard safety controls the control board has built in safety limit controls which protect the ice machine from major component failures Safety limits are stored and indicated by the control board after three cycles The number of cycles required to stop the ice machine varies for each safety limit Safety Limit 1 models If the freeze time reaches 60 minutes the control board automatically initiates a harvest cycle If 6 consecutive 60 minute freeze cycles occur the ice machine stops Safety Limit 2 single evaporator models If the harvest time reaches 3 5 minutes the control board automatically returns the ice machine to the freeze cycle If 500 consecutive 3 5 minute harvest cycles occur the ice machine stops Safety Limit 2 Dual evaporator models If the harvest time reaches 7 minutes the control board automatically returns the ice machine to the freeze cycle If 500 consecutive 7 minute harvest cycles occur the ice machine stops Part Number 5 26 8 12 111 SAFE OPERATION MODE Allows the ice machine to operate up to 72 hours if the ice thickness probe E19 fault and or water level probe sensors fail E20 fault When the control board starts the safe mode an alert is flashed on the LCD display to notify the end user they have a production problem The control board automatically initiates and monitors the safe mode The control will automatically exit the safe mode if a normal
118. ive 100 Operational Checks 102 General 102 Ice Thickness Check 103 Sequence of Operation 104 QuietQube Models 104 Initial Start Up or Start Up After Automatic Shut Off 104 Freeze Sequence 105 Harvest Sequence 106 Automatic Shut Off 107 Restart After Automatic Shut off 107 Safety Timers 110 Water Assist Harvest Feature 110 Part Number STH026 8 12 11 Troubleshooting 12 Safety Limits 111 Safe Operation Mode 112 Analyzing Why a Safety Limit Stopped the Ice Machine 113 Safety Limit 1 114 Safety Limit 2 115 Troubleshooting By Symptom 116 Reset To Factory Defaults 117 Symptom 1 Ice Machine will not run 118 Diagnosing a Condensing Unit That Will Not Run 121 Symptom 2 Low Production Long Freeze 122 Freeze Cycle Refrigeration System Opera tional Analysis Tables 124 QuietQube Models Freeze Cycle Refrig eration System Operational Analysis Table Procedures a sor 130 Symptom 3 Harvest Problems 148 Symptom 3 QuietQube Models With ICVD Condensing Units 149 Symptom 4 QuietQube Models With ICVD Condensing Units 153 Part Number S
119. lays a replace water filter reminder at a set time interval 1 From the Set Up menu use the Down arrow to highlight Water Filter 2 Press the Checkmark You can record the filter type on this screen by highlighting Filter Type and pressing the Checkmark After making your selection AR10 000 AR20 000 AR40 000 Scroll down to exit and press the Checkmark 3 You can also choose to turn the reminder to AUTO NONE or OFF by highlighting your choice and pressing the Checkmark Selecting one will deselect the other Selecting Auto sets the reminder based on water usage for the selected filter Selecting None will turn off the reminder Selecting Off sets the timer to the selected reminder time 2 weeks to 6 months 4 You can further choose the time interval from this screen by highlighting Set Interval and pressing the Checkmark 5 Press the Left arrow to return to previous screens and to the Set Up menu Part Number STH026 8 12 77 LUMINICE REMINDER The Luminice growth inhibitor recirculates the air in the ice machine foodzone over a UV bulb This process will inhibit the growth of common micro organisms on all exposed foodzone surfaces The Bulb Minder is a feature that displays a reminder to change its bulb every 12 months 1 From the Set Up menu use the Down arrow to highlight Luminlce Minder 2 Press the Checkmark On this screen you can choose to turn the reminder to AUTO or OFF by highli
120. les into harvest normally Perform steps 1 amp 2 on page 173 to test ice thickness probe and control board e Ice machine will not cycle into harvest Perform steps 1 through 4 on page 173 to test ice thickness probe and control board Part Number STH026 8 12 175 HIGH PRESSURE CUTOUT HPCO CONTROL FUNCTION Stops the ice machine if subjected to excessive high side pressure The HPCO control is normally closed and opens on a rise in discharge pressure SPECIFICATIONS Specifications Cut Out Cut In 450 psig 7 300 psig 10 3102 kPa 48 31 bar 48 2068 kPa 20 68 bar Automatic Reset SYMPTOM Opening the HPCO will cause the control board to initiate a 60 minute delay The display counts down from 60 minutes to 0 minutes at which point the ice machine attempts a restart If the HPCO is closed the ice machine will continue to run If the HPCO remains open after the 60 minute delay or reopens when the compressor starts the ice machine will start another 60 minute delay period 1 Machine is off and the display indicates Delay XX min HPCO Active 2 Machine is running and the display has an alert triangle Press left arrow to display HPC Fault 176 Part Number STH026 8 12 CHECK PROCEDURE Symptom 1 Machine is off and the display indicates Delay xx min HPCO Active 1 Cycle ice machine with the on off button The ice machine will go to an initial start sequence if the HPCO is
121. liminating flush cycles 1 From the Energy Saver menu use the Down arrow to highlight Water Miser 2 Press the Checkmark On this screen you can choose to turn the Water Miser ON or OFF by highlighting your choice and pressing the Checkmark Selecting one will deselect the other 3 Use the Down arrow to navigate to Exit and press the Checkmark to return to the Energy Saver menu STATISTICS 1 From the Energy Saver menu use the Down arrow to highlight Statistics 2 Press the Checkmark Choose to view ice usage or potable water and energy statistics by highlighting your choice and pressing the Checkmark 3 Press the Left arrow to return to previous screens and to the Energy Saver menu 82 Part Number STH026 8 12 FACTORY DEFAULTS The entire setup can be reset to the factory defaults 1 From the Set Up menu use the Down arrow to highlight Fact Deflts 2 Press the Checkmark two times to reset the ice machine The display will return to the Set Up menu Setting Default Language English Time Configuration Mo Day Yr 24 Hour Units Fahrenheit Lbs Gallons Ice Clarity Off LCD Brightness Level 2 Password Off Enter Password Default Password 1234 Edit Password Off Edit Password Clean Minder Off AuCS RunTime Off Air Filter Minder Off Water Filter Minder Auto Luminlce Bulb Minder No Ice Bin Sensor None Part Number STH026 8 12 83 Service M
122. machine fails to make a full sheet of ice in 60 minutes and a safety limit 1 results NOTE When a head pressure control valve is being replaced or refrigerant charge is suspected verify the refrigerant charge is correct by recovering the refrigerant weighing and comparing to the nameplate amount Refer to Refrigerant Recovery Evacuation for recovery procedures 190 Part Number STH026 8 12 Freeze Cycle Operation Models The R404A head pressure control valve is non adjustable At ambient temperatures of approximately 70 F 21 C or above refrigerant flows through the valve from the condenser to the receiver inlet At temperatures below this or at higher temperatures if it is raining the head pressure control dome s nitrogen charge closes the condenser port and opens the bypass port from the compressor discharge line In this modulating mode the valve maintains minimum head pressure by building up liquid in the condenser and bypassing discharge gas directly to the receiver Harvest Cycle Operation During the Harvest cycle the harvest valve opens and allows refrigerant from the top of the receiver tank to enter the evaporator The refrigerants change of state from vapor to liquid releases the heat necessary for the Harvest cycle Opening the harvest valve causes a drop in discharge pressure The discharge pressure will drop below the condenser fan cycling control setpoint and the condenser fan motor cycles
123. mperature and 50 F 10 C water produces more ice than the same model condensing unit with a 90 F 32 C outdoor ambient temperature and 70 F 21 C water 1 Determine the ice machine operating conditions Air temp entering condenser gt Air temp around ice machine Water temp entering sump trough 2 Refer to the appropriate 24 Hour Ice Production Chart starting on page 211 Use the operating conditions determined in step 1 to find published 24 Hour Ice Production Times are in minutes Example 1 min 15 sec converts to 1 25 min 15 seconds 60 seconds 25 minutes Weights are in pounds Example 2 Ib 6 oz converts to 2 375 Ib 6 oz 16 oz 375 Ib 3 Perform an ice production check using the formula below o o 1 SE gt Freeze Time Harvest Time Total Cycle Time 2 1440 Vlinutes in Total Cycle Cycles per 24 Hrs Time Day 3 2 33 Weight of Cycles per Actual 24 One Harvest Day Hour Production Part Number STH026 8 12 131 Weighing the ice is the only 100 accurate check However if the ice pattern is normal and the 1 8 in thickness is maintained the ice slab weights listed with the 24 Hour Ice Production Charts may be used 4 Compare the results of step 3 with step 2 Ice production checks that are within 1096 of the chart are considered normal If they match closely determine if Another ice machine is re
124. nd tear 3 defects or damage to the Product or parts resulting from misuse abuse neglect or accidents 4 defects or damage to the Product or parts resulting from improper or unauthorized alterations modifications or changes and 5 defects or damage to any Product that has not been installed and or maintained in accordance with the instruction manual or technical instructions provided by Manitowoc To the extent that warranty exclusions are not permitted under some state laws these exclusions may not apply to you EXCEPT AS STATED IN THE FOLLOWING SENTENCE THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY OF MANITOWOC WITH REGARD TO THE PRODUCT ALL IMPLIED WARRANTIES ARE STRICTLY LIMITED TO THE DURATION OF THE LIMITED WARRANTY APPLICABLE TO THE PRODUCTS AS STATED ABOVE INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you 24 Part Number STH026 8 12 IN No EvENT SHALL MANITOWOC OR ANY OF ITS AFFILIATES BE LiABLE TO THE CONSUMER OR ANY OTHER PERSON FOR ANY INCIDENTAL CONSEQUENTIAL OR SPECIAL DAMAGES OF ANY KIND INCLUDING WITHOUT LIMITATION Loss OF PROFITS REVENUE OR BUSINESS ARISING FROM OR IN ANY MANNER CONNECTED WiTH THE PRODUCT ANY BREACH OF THIS LIMITED WARRANTY OR ANY OTHER CAUSE WHATSOEVER WHETHER BASED ON CONTRACT TORT OR ANY OTHE
125. nstall Ground Micro light flashing Are there any lights on or flashing on the control board Unit has adequate ground Refer to display amp control board diagnostics ycle Power to Board are lights flashing Yes Y Display light Flashing Yes Refer to display amp control board diagnostics Yes 920 15 JequinN 920 15 JequinN Hed Yes Line voltage at wires 55 amp 56 on 9 pin control board connector Supply power to the ice machine Yes Consta the water curtain damper ontrol board fuse is good Yes All water curtains or dampers in place Bin switch light on No Multi evap all lights on Replace fuse amp determine which component caused fuse to blow Refer to display amp control board diagnostics Yes Yes 02 920 15 JequinN M ress power button to limit light flash Ice machine starts No Yes Which light flashes start ice making does safety SL2 water curtai Refer to display amp control board diagnostics Is magnet on the Replace the water in damper curtain damper Refer to bin switch p diagnostics CEU Er Refer to Safety Limit 1 long freeze cycle
126. off at ambient temperatures above 110 F 43 C the condenser fan motor remains energized The warm discharge gas adds heat to the receiver in the harvest cycle Without this additional heat the head pressure would continue to drop as liquid refrigerant boils off in the receiver Example A service technician removes refrigerant vapor from a cylinder by boiling off the liquid refrigerant A refrigeration effect is created as the refrigerant changes state from a liquid to a vapor The cylinder cools and the refrigerant pressure drops To maximize flow and maintain pressure the technician places the cylinder in warm water Part Number 5 26 8 12 191 Diagnostics FREEZE CYCLE QUIETQUBE REMOTE CONDENSING UNIT 1 Determine if the coil is clean 2 Determine the air temperature entering the condenser 3 Determine if the head pressure is high or low in relationship to the outside temperature Refer to the proper Cycle Times 24 Hour Ice Production Refrigerant Pressure Charts page 211 4 Determine the temperature of the liquid line entering the receiver by feeling it This line is normally warm body temperature 5 Using the information gathered refer to the chart NOTE A head pressure control valve that will not bypass will function properly with condenser air temperatures of approximately 70 F 21 C or above When the temperature drops below 70 F 21 C the head pressure control valve fails to
127. omponents to appear defective The tables list five different defects that may affect the ice machine s operation NOTE A low on charge ice machine and a starving expansion valve have very similar characteristics and are listed under the same column NOTE Before starting see Before Beginning Service for a few questions to ask when talking to the ice machine owner 122 Part Number STH026 8 12 PROCEDURE Step 1 Complete the Operation Analysis column Read down the left Operational Analysis column Perform all procedures and check all information listed Each item in this column has supporting reference material to help analyze each step While analyzing each item separately you may find an external problem causing a good refrigerant component to appear bad Correct problems as they are found If the operational problem is found it is not necessary to complete the remaining procedures Step 2 Enter Checkmarks 7 Each time the actual findings of an item in the Operational Analysis column matches the published findings on the table enter a Checkmark Example Freeze cycle suction pressure is determined to be low Enter a Checkmark in the low column Step 3 Add the Checkmarks listed under each of the four columns Note the column number with the highest total and proceed to Final Analysis NOTE If two columns have matching high numbers a procedure was not performed properly supporting material w
128. on the inlet of the evaporator 4 No Ice Formation The ice machine operates for an extended period but there is no ice formation at all on the evaporator Evaporator Tubing Routing Routing of the tubing on the back of the evaporator determines the ice fill pattern failure mode The evaporator outlet tubing does not exit directly at the top of the evaporator but exits several inches below the top of the evaporator Extremely Thin at the Evaporator Outlet will first be visible several inches below the top of the evaporator Extremely Thin at Evaporator Inlet will first be visible at the bottom of the evaporator Outlet Inlet Thin at Inlet Thin at Outlet 136 Part Number STH026 8 12 One Evaporator Two TXV Models Tubing routing for one evaporator with two TXV s is different The evaporator has two inlets and outlets Fill pattern varies depending on which circuit is affected Extremely Thin at the Evaporator Outlet will first be visible either 1 4 or 3 4 of the way down the evaporator Extremely Thin at the Evaporator Inlet will show at the bottom of the evaporator or 1 2 of the way down depending on the circuit affected Outlet 2 S CIR Inlet Thin at Inlet 2 U UIW S NS Outlet Y IC E
129. or Thin Ice Fill on inlet or outlet of Evaporator or Low Production Safety Limit 1 possible Refer to Freeze Cycle Refrigeration System Operational Analysis Table SYMPTOM 3 Ice Machine Will Not Harvest Freeze Cycle is Normal and Ice Cubes are Not Melted After Harvest Safety Limit 2 possible Refer to Refrigeration Harvest Flow Chart SYMPTOM 4 Ice Machine Will Not Harvest Freeze Cycle is Normal and Ice Cubes are Melted After Harvest Refer to Meltout Flow Chart 116 Part Number STHO026 8 12 RESET TO FACTORY DEFAULTS Before starting troubleshooting procedures reset the control board to factory defaults to prevent misdiagnosis Before resetting to factory defaults do one of the following A Copy settings to a usb device and flash settings into the control board when diagnostics are complete B Write down any customer settings so they can be re entered when diagnostics are complete This procedure also resets the password to the factory default The default factory password is 1234 To reset the ice machine to factory defaults See Reset Password To Factory Defaults on page 68 Part Number 5 26 8 12 117 SYMPTOM 1 ICE MACHINE WILL NOT RUN 8 START Is the display interface Yes energized and functioning Does the ice machine start hen the Power button is pushed s there an Alert of Error Logged Refer to Alert Error Log Yes Yes Yes No No I
130. or is controlled by a fan cycle control therefor it may cycle on off SAFETY TIMERS The control board has the following non adjustable safety timers ice machine is locked into the freeze cycle for 6 minutes before a harvest cycle can be initiated This can be overridden by initiating a manual harvest Refer to Manual Harvest on page 90 maximum freeze time is 60 minutes at which time the control board automatically initiates a harvest sequence steps 5 amp 6 maximum harvest time is 3 5 minutes at which time the control board automatically ends the harvest cycle When the bin switch is closed a freeze sequence initiates steps 3 amp 4 When the bin switch is open an automatic shutoff sequence initiates maximum water fill is 12 5 minutes 16 5 minutes for dual evaporator models WATER ASSIST HARVEST FEATURE Twin Evaporators Only Typical duration of a Harvest sequence is less than 2 5 minutes When the Harvest sequence time reaches 4 minutes the following occurs 4 minutes into a Harvest sequence The water fill valve will energize to fill the trough with water 5 minutes into a Harvest sequence The water pump will energize and flow water over the evaporators The water fill valve and water pump remain on until all bin switches have been activated or until the 7 minute Harvest sequence time limit is reached 110 Part Number STH026 8 12 Troubleshooting Safety Lim
131. or to transfer setup information to multiple ice machines Data may also be requested by service department personnel for analysis or as an aid to troubleshooting The data files are small and can be attached to an email Important The flash drive must be formatted before using Refer to page 96 USB Flash Drive Specifications and Formatting All files and data are deleted during the formatting process 1 Ensure that the ice machine s power is on 2 Press the Menu button 3 Press the Down arrow until Service is highlighted 4 Press the Checkmark The Service menu will be displayed USB Setup Stick Export All 5 Press the Down arrow until USB Setup is highlighted 100 Part Number STH026 8 12 6 Press the Checkmark USB Stick will appear highlighted 7 Press the Checkmark again A submenu with Export ALL and Export Setup appears 8 Highlight Export ALL or Export Setup depending on your requirements and press the Checkmark A display of instructions will appear 9 Follow these on screen instructions to A Insert Drive Insert the flash drive into the USB port on the ice machine s control board B Press Check Press the Checkmark C Wait For Comp Wait approximately 5 to 10 minutes for the download to complete D Depending on software version either Export Complete Success or the On Off screen will appear Part Number STH026 8 12 101 Operational Checks GENERAL Manitowoc
132. own to enbl relays and press right arrow to start control board test 3 The control board will energize all relays and the red light next to the relay The red light indicates the relay coil is energized 4 Test for line voltage at the individual components A Line voltage is present and the component is non functional Replace component B Voltage is not present at the component Proceed to step 5 5 Refer to wiring diagram and determine wire location on the 9 pin molex connector for the component you are testing 6 Check for line voltage at the control board 9 pin molex connector A Line voltage at 9 pin connector Repair wiring to component B No power at 9 pin connector Replace control board 158 Part Number STHO026 8 12 PROGRAMMING A REPLACEMENT BOARD Indigo replacement control boards require the Model number to be entered to activate the appropriate look up tables for operation and diagnostic This can be done two different ways USB Setup or Manual Setup USB Setup Applicable when the control board is operational and has a mechanical issue such as a sticking relay The asset data is transferred to the replacement control board from the faulty control board Refer to page 100 Exporting Data To A Flash Drive before installing the replacement board Manual Setup Applicable when the control board is non operational or data from the faulty board is suspect Install replacement control board and reapply power e G ser
133. p ERE WORKING ON ELECTRICAL CIRCUITRY TERMINAL BLOCK BURING FREEZE CYCLE BLUE pen BLACK Trans ji PURPLE ve BLUE b irs YELLOW U veLtow D He 1 CONTACTOR TRANSFORMER ORANGE MH COMPRESSOR CRANKCASE A us CONTACTOR FAN NOTOR CONTACTOR Fat I RUN CAPACITOR FAN CONDENSING UNIT SIEUT bue conca fan CONTROL RUN CAPACITOR 149 0 covntsson UN CAPACITOR m WINE START CAPACITOR DEFROST core he dunt SEE SERIAL PLATE ror 555 TERMINAL BLOCK 224 FAN CYCLE CONTROL RUN CAPACITOR Will de Tm sud uc Oy HIGH PRES Gh ub nu 498 15 nem ua COMPESSOR CRAMCASE teo uo A SE UNI couracroe nmm en rye SUPE RUN CAPACITOR jen FAN MOTOR Part Number STH026 8 12 111400 11800 12170 QuietQube Remote Air cooled 1 amp 3 Ph
134. quired More storage capacity is required Relocating the existing equipment to lower the load conditions is required Contact the local Manitowoc Distributor for information on available options and accessories 132 Part Number STHO026 8 12 QuietQube Models Installation Visual Inspection Checklist Inadequate Clearances e Check all clearances on sides back and top See Clearance Requirements on page 31 Ice machine is not level Level the ice machine Condenser is dirty Clean the condenser Water filtration is plugged if used Install a new water filter Water drains are not run separately and or are not vented Run and vent drains according to the Installation Manual Line set is improperly installed Reinstall according to the Installation Manual Lineset is the incorrect size Refer to Installation Use and Care Manual See Lineset Applications on page 35 Part Number 5 26 8 12 133 QuietQube amp Models Water System Checklist A water related problem often causes the same symptoms as a refrigeration system component malfunction Water system problems must be identified and eliminated prior to replacing refrigeration components Water area evaporator is dirty Clean as needed Water inlet pressure not between 20 and 80 psig 1 5 Bar 138 552 kPa e Install water regulator or increase water pressure Incoming water temperature is not between 35 F 2 and 90 F 32 C
135. r that more ice is forming on the inlet of the evaporator than on the outlet At the end of the Freeze cycle ice formation at the outlet will be close to or just a bit thinner than ice formation at the inlet The dimples in the cubes at the outlet of the evaporator may be more pronounced than those on the inlet This is normal It is normal for ice thickness to vary up to 1 16 across the surface of the evaporator The ice bridge thickness at the ice thickness control probe should be at least 1 8 The ice thickness probe must be set to maintain the ice bridge thickness at approximately 1 8 in If ice forms uniformly across the evaporator surface but does not reach 1 8 in in the proper amount of time this is still considered a normal ice fill pattern Part Number STH026 8 12 135 2 Extremely Thin at Evaporator Outlet There is no ice or a considerable lack of ice formation at the outlet of the evaporator Examples No ice at all on the outlet half of the evaporator but ice forms on the inlet half of the evaporator Or the ice at the outlet of the evaporator reaches 1 8 in to initiate a harvest but the inlet of the evaporator already has 1 2 in to 1 in of ice formation 3 Extremely Thin at Evaporator Inlet There is no ice or a considerable lack of ice formation at the inlet of the evaporator Examples The ice at the outlet of the evaporator reaches 1 8 in to initiate harvest but there is no ice formation at all
136. rage Ice Machines 52 Remove splash shield Grasp the top center of splash shields Lift up and then out Remove ice thickness probe Compress the hinge pin on the top of the ice thickness probe Pivot the ice thickness probe to disengage one pin then the other The ice thickness probe can be cleaned at this point without complete removal If complete removal is desired disconnect the ice thickness control wiring from the control board Part Number STHO026 8 12 C Remove the water trough Depress tabs on right and left side of the water trough Allow front of water trough to drop as you pull forward to disengage the rear pins D Remove the water level probe Pull the water level probe straight down to disengage Lower the water level probe until the wiring connector is visible Disconnect the wire lead from the water level probe e Remove the water level probe from the ice machine E Remove the water distribution tube NOTE Distribution tube thumbscrews are retained to prevent loss Loosen thumbscrews but do not pull thumbscrews out of distribution tube Loosen the two outer screws do not remove screws completely they are retained to prevent loss and pull forward on the distribution tube to release from slip joint Disassemble distribution tube by loosening the two 2 middle thumbscrews and dividing the distribution tube into two pieces NOTE Proceed
137. resistance reading must be between Two Terminal PTCR Black 24 5 to 45 5 ohms Two Terminal PTCR Blue 21 to 39 ohms Three Terminal PTCR Tan 10 5 to 19 5 ohms Measure Resistance At Ends Two Terminal PTCR Measure Resistance Center and End Leave Jumper Wire Attached Three Terminal PTCR Part Number STH026 8 12 189 Refrigeration Components HEAD PRESSURE CONTROL VALVE Manitowoc remote systems require head pressure control valves with special settings Replace defective head pressure control valves only with original Manitowoc replacement parts Refrigerant Charge Verification The correct amount of refrigerant name plate charge is required to operate correctly at all ambient conditions An ice machine with an overcharge or undercharge of refrigerant may function properly at higher ambient temperatures and fails at lower ambient temperatures Symptoms of incorrect refrigerant amount are Works during the day and malfunctions at night and or fails whenever the outdoor temperature drops Safety limit is stored in control board memory Refrigerant loss and ambient temperature are directly related to each other As the ambient temperature drops more refrigerant is stored in the condenser When the refrigerant charge and ambient temperature create an undercharge of refrigerant in the freeze cycle the receiver dip tube will lose it s liquid seal Without liquid refrigerant to the TXV the ice
138. rol board light is off Verify procedure was correctly followed Replace control board 164 Part Number STH026 8 12 WATER LEVEL CONTROL CIRCUITRY FUNCTION The water level probe controls the water level by sensing whether water is or is not contacting the water level probe The water level probe has three sensing probes Two probes are equal in length and are used to measures conductivity for diagnostics ice clarity and water miser options Factory default settings measure resistance from both long probes to the short probe SPECIFICATIONS Freeze Cycle Water Level Setting During the Freeze cycle the water level probe is set to maintain the proper water level above the water pump housing The water level is not adjustable If the water level is incorrect check the water level probe position Reposition or clean the probe as necessary Water Inlet Valve Safety Shut Off In the event of a water level probe failure this feature limits the water inlet valve to 12 5 minutes Regardless of the water level probe input the control board automatically shuts off the water inlet valve if it remains on for 12 5 continuous minutes 30 seconds in prechill and two 6 minute periods in the freeze cycle Part Number STH026 8 12 165 Prechill amp Freeze Cycle Operation The water inlet valve energizes and de energizes in conjunction with the water level probe located in the water trough The water inlet valve is ON when there is no
139. rtified in proper refrigerant handling and servicing procedures All lockout and tag out procedures must be followed when working on this equipment Warning Do not damage the refrigeration circuit when installing maintaining or servicing the unit Warning Do not operate equipment that has been misused abused neglected damaged or altered modified from that of original manufactured specifications This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision concerning use of the appliance by a person responsible for their safety Do not allow children to play with this appliance Warning All covers and access panels must be in place and properly secured before operating this equipment Warning Do not obstruct machine vents or openings Warning Do not store gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance Warning Do not clean with water jet Warning It is the responsibility of the equipment owner to perform a Personal Protective Equipment Hazard Assessment to ensure adequate protection during maintenance procedures Warning Two or more people are required to move this equipment to prevent tipping Warning When using electric appliances
140. rvest Time Cycle Time Air Temp Freeze Time Entering a Harvest Condenser Water Temperature F C Time F C 50 10 70 21 90 32 20 to 70 29 to 21 7 9 9 4 9 7 11 5 11 1 13 1 80 27 8 4 10 0 10 2 12 1 11 6 13 7 90 32 8 90 6 10 8 12 8 123 146 7525 100 38 9 5 11 3 11 4 13 5 13 1 15 5 110 43 9 9 11 8 12 0 14 2 13 9 16 4 1Times in minutes Dice cube 24 HOUR ICE PRODUCTION Air Temp Water Temperature F C Entering Condenser 50 10 70 21 90 32 F C 20 to 70 29 to 21 950 800 710 80 27 900 760 680 90 32 860 725 645 100 38 810 690 610 110 43 780 660 580 1Based on average ice slab weight of 6 2 7 2 Ib OPERATING PRESSURES Air Temp Freeze Cycle Harvest Cycle Entering Discharge Suction Discharge Suction Condenser Pressure Pressure Pressure Pressure Tw psig psig psig psig 20 to 50 29 to 10 200 250 40 30 155 180 70 85 70 21 230 255 50 30 155 180 70 90 80 27 235 260 50 30 155 180 70 95 90 32 240 290 55 31 155 180 85 105 100 38 275 345 60 32 160 200 90 115 110 43 310 380 65 32 160 210 100 120 216 Part Number STHO026 8 12 IB1090C ICVD1195 Remote Air Cooled Condensing Unit Model Characteristics vary depending on operating conditions CYCLE TIMES Freeze Time Harvest Time Total Cycle Time Freeze Time Harvest Time Cycle Time Air
141. s pressed 1 Navigate to the event log on the Service menu Scroll down to HPC Fault EO5 Open the event and view when and how often HPCO Fault has occurred If this is a one time event it may be intermittent and caused by conditions around the unit changing For example High ambient temperature water turned off to condenser water cooled unit etc Run the system to see if the control trips at the rated pressure If HPCO opens at a pressure significantly lower than the control setting of 450 psig replace the HPCO 4 If the control opens at the correct pressure 10 Ibs find the root cause Fan motor dirty condenser refrigeration system issue etc 178 Part Number STH026 8 12 LOW PRESSURE CUTOUT LPCO CONTROL FUNCTION Signals the control board to energize and de energize the contactor when suction pressure rises above or falls below setpoint The LPCO control is closed at pressures above setpoint and opens at pressures below setpoint Specifications Cut Out Cut In 12 psig 3 35 psig 5 CHECK PROCEDURE 1 Navigate to LPCO input on display Press the Menu button Scroll down to Service and press right arrow Scroll down to Diagnostics and press right arrow Scroll down to Inputs and press right arrow to display LPCO reading 2 LPCO display indicates A Open Replace Switch B Closed Switch OK 3 Connect manifold gauges and verify refrigerant pressure exceeds
142. ssor discharge line temperature last 6 seconds of Prechill 50 F T1 compared to E09 Flood Evap 1 2 single evaporator flooding average of first 6 minutes of freeze cycle T2 is less than 1 05 F evap Flooding evaporator for dual TXV Average compressor discharge line temperature last 6 seconds of Prechill 50 F T1 compared to E10 Flood Evap 2 ERIS S evaporator average of first 6 minutes of freeze cycle T2 is less than 1 05 F v6 920 15 JequinN Detail Event Log Service Definition E Log Display Text Error Description Definition Eth Rose suit Refrigeration System Refrig The compressor discharge temperature did not increase by at least 10 F and the evaporator etig Fau Fault temperature did not decreased by at least 10 F Measured from Refrigeration Start up or Prechill Air amp Water cooled Only until 2 minutes into the Freeze cycle G Board Rev 4 017 Event Log only no alert A Curtain Switch open for more The ice machine is set to ice making and remains in bin full condition for more than 24 hours E12 Curtain Fault than 24 hours Curtain Fault The curtain switch is open or curtain is off G Board Rev 4 017 24 hrs E Board 12 hrs E13 Spare E14 Spare 15 Low Liq Temp Low amb control fault durring low If the liquid line temperature drops below 60 F for any period exceeding continuous 1 minute during the amb the freeze cycle G Board Rev 4 017 Event
143. starving TXV flooding QUIETQUBE MODELS FREEZE CYCLE REFRIGERATION SYSTEM OPERATIONAL ANALYSIS TABLE PROCEDURES The following is the procedures for completing each step of the Freeze Cycle Refrigeration System Operational Analysis Tables Each procedure must be performed exactly for the table to work correctly Before Beginning Service Ice machines may experience operational problems only during certain times of the day or night A machine may function properly while it is being serviced but malfunctions later Information provided by the user can help the technician start in the right direction and may be a determining factor in the final diagnosis Ask these questions before beginning service When does the ice machine malfunction night day all the time only during the Freeze cycle etc When do you notice low ice production one day a week every day on weekends etc e Can you describe exactly what the ice machine seems to be doing Has anyone been working on the ice machine During store shutdown is the circuit breaker water supply or air temperature altered ls there any reason why incoming water pressure might rise or drop substantially 130 Part Number STHO026 8 12 QuietQube Models Ice Production Check The amount of ice a machine produces directly relates to the operating water and air temperatures This means a condensing unit with a 70 F 21 C outdoor ambient te
144. sure low in harvest Feel temperature of Receiver after 30 seconds Feels Warm to Hot into harvest cycle Cold Y ZL 8 920H LS JequinN Hed LSL Cold Y Feel temperature of Liquid Line at rear of Head Section Cold v Feel temperature of Liquid Line at Condensing Unit Does the Condenser Fan Motor Feels Hot gt Backseat Liquid Line Lu Valve or TES Feels Hot J Look for Restriction Correct Line Set Size amp Proper Insulation run below cut out setpoint in harvest YES gt Refer to Fan Cycling Control Diagnostics 920 15 JequinN NO Y Feel temperature of Discharge Line after 30 seconds into Harvest Cycle refer to Harvest Headmaster Diagnostics Headmaster is in 100 Bypass Refer to Symptom 2 Refrigeration Operational Analysis Table Headmaster is not in 100 Bypass Refrigerant Charge is Incorrect Evacuate System Recharge amp perform Production Check IMPORTANT Weigh charge as you are recovering if incorrect evacuate amp recharge if correct then proceed Refrigerant Charge is Correct Change Headmaster 71 8 920H LS JequinN Hed SYMPTOM 4 QUIETQUBE MODELS WITH ICVD CONDENSING UNITS Ice Machine Will Not Harvest Freeze Cycle Is Normal and Ic
145. t and Right Arrows The Left arrow moves the display to the previous screen allowing the user to back out of programming Both the Left and Right arrows will move the cursor underline within a line of settings NOTE The Right arrow can also be used on many screens interchangeably with the checkmark to make a selection Up and Down Arrows Vove the highlight brackets up one line or down one line Checkmark Makes a selection and or moves to the next screen or line and is used like an enter button DISPLAY PANEL The LCD display panel is 16 characters wide and four lines deep During ice machine operation and cleaning cycles the Home screen s top three lines provide valuable status information and the fourth line shows alerts and messages In programming four lines of the current screen are displayed and highlights arrows cursor and selections inform the user of available actions 62 Part Number STH026 8 12 Menu Navigation Overview ONIOFF Button Home Screen When Alert Present Clean Function Main Menu Y Y Y Y Machine Set up Defaults Service EXT 4 4 4 Password Entry Defaults Return to Optional Exit Home Screen 90 70 Capacity Language Ice Program Data History Model Number Time Date Water Miser Real Time Data Ice Machin
146. th operating system software Windows 7 or Windows Vista Computers 1 Insert USB flash drive your computer may indicate Found New Hardware follow the prompts to install the USB flash drive USB flash drive may auto play Close auto play window 2 Press Windows Key and E key simultaneously to access windows explorer 3 Right click on your USB Flash Drive 4 Left click on Format 5 Verify or select the settings below USB flash drive capacity 2 GB or less File System Fat32 Allocation Unit Size Must be 512 MB e Volume Label is Optional Rename if desired Deselect Perform A Quick Format no checkmark 6 Left click on Start You will receive a warning Formatting will remove all data left click OK A Format Complete box will display when formatting is finished Close the pop up and windows explorer 96 Part Number STH026 8 12 Windows XP Computers 1 Insert USB flash drive your computer may indicate Found New Hardware follow the prompts to install the USB flash drive USB flash drive may auto launch Close auto launch window 2 To access Disk Management e Left click on the Windows Start Button Left click on Run compmgmt msc and left click on OK e Left click on Disk Management 3 Verify USB flash drive capacity is 2 GB or less 4 Right click on the USB flash drive then left click on Format from the drop do
147. the control board diagnostics to Status Passed Perform the following keystrokes on the display Display reads Status Passed press the right arrow Display reads Pass Yes press the right arrow Display reads Key Pad Test press the right arrow 4 Test the functionality of all buttons on the touch pad NOTE Pushing the power button will start and stop the ice machine Testing it last will allow the ice machine to continue running a freeze cycle As you press the buttons the first letter of the corresponding word will flash indicating the push button is operating correctly Press the right arrow 5 times rapidly to exit 5 Display reads Pass Yes and Pass No Press left arrow 4 times to exit to home screen Part Number STH026 8 12 157 CONTROL BOARD RELAY TEST The control board can be set to energize all relays for 3 5 minutes This allows testing to verify control board relays are closed and line voltage is available for ice machine components Water pump dump valve water inlet valve harvest valve s air compressor s contactor compressor fan motor The fan cycle control must close to energize the fan motor 1 Press power button to turn off ice machine 2 Perform the following keystrokes on the display Press Menu scroll down to Service and press the right arrow Scroll down to Diagnostics press the right arrow and select Diagnostics Display reads Control Board press right arrow Scroll d
148. the factory password 1 2 3 4 Enter the number 1 in the flashing cursor first digit of the factory password 6 Press the right arrow to move to the next cell and use the Up amp Down arrows to add the number 2 Repeat this process to add 3 amp 4 7 When the last number is entered press the Checkmark button to save your entry 74 Part Number STHO026 8 12 To enter a four digit password of your choosing use the following procedure 1 Press the Menu button 2 From the Main menu use the Down arrow to highlight setup and press the Right arrow 3 Use the Down arrow to select Edit Password and press the Right arrow 4 Using the Up amp Down arrows enter the first digit of the factory password in the flashing icon 5 Press the right arrow to move to the next cell and use the Up amp Down arrows to add the number 2 Repeat this process to add 3 amp 4 6 When the last number is entered press the Checkmark button 7 Follow steps 4 amp 5 and enter your 4 digit password 8 When the last number is entered press the Checkmark button to save your entry CLEAN MINDER Clean Minder is a feature that displays a cleaning reminder at a set time interval 1 From the Set Up menu use the Down arrow to highlight Clean Minder 2 Press the Checkmark On this screen you can choose to turn the reminder ON or OFF by highlighting your choice and pressing the Checkmark Selecting one will desele
149. the suction line with in 6 of the shut off valve outlet Record the low event at the end of the freeze cycle Suction line temp at the suction shut off valve is greater than 10 F 12 2 at the end of the freeze cycle Suction line temp at the suction shut off valve is greater than 10 F 12 2 at the end of the freeze cycle Suction line temp at the suction shut off valve is less than 10 12 2 C at the end of the freeze cycle Suction line temp at the suction shut off valve is greater than 10 F 12 2 at the end of the freeze cycle Final Analysis Enter total number of boxes checked in each column Harvest Valve Leaking Low On Charge Or TXV Starving Refrigerant Overcharge Or TXV Flooding Compressor YCOHLS JequinN ZZL Freeze Cycle Refrigeration System Operational Analysis Tables Twin Expansion Valve 11470 1870 2170 Models Operational Analysis 1 2 3 Ice Production Published 24 hour ice production Calculated actual 24 hour ice production NOTE The ice machine is operating properly if the ice fill pattern is normal and ice production is within 10 of charted capacity See QuietQube Models Ice Production Check on page 131 Installation and Water System All installation and water related problems must be corrected before proceeding with chart Ice Formation Pattern See
150. this manner until the serial number is complete Press the right arrow until the cursor disappears Scroll down and select exit then press checkmark Reboot ice machine by disconnecting power for a minimum of 15 seconds then reapply power Part Number STH026 8 12 MAIN FUSE FUNCTION The control board fuse stops ice machine operation if electrical components fail causing high amp draw SPECIFICATIONS The main fuse is 250 Volt 8 amp Warning High line voltage is applied to the control board terminals 55 and 56 at all times Removing the control board fuse or pressing the On Off button will not remove the power supplied to the control board CHECK PROCEDURE 1 If the bin switch light is on with the water curtain ice dampers closed the fuse is good Warning Disconnect electrical power to the entire ice machine before proceeding 2 Remove the fuse Check for continuity across the fuse with an ohmmeter Reading Result Open OL Replace fuse Closed O Fuse is good Part Number STH026 8 12 161 BIN SWITCH FUNCTION Movement of the water curtain ice dampers control bin switch operation The bin switch has two main functions 1 Terminating the Harvest cycle and returning the ice machine to the Freeze cycle This occurs when the bin switch is opened and closed again within 30 seconds during the Harvest cycle 2 Automatic ice machine shut off If
151. to page 47 Step 7 Part Number STH026 8 12 53 Dual Evaporator Ice Machines A Remove front splash shield 54 Grasp the top of the splash shield Lift up and then out Remove evaporator splash shields Grasp the top center of splash shields Lift up and then out Remove the water trough shield Grasp the water trough shield in the center and the left end Flex the water trough shield in the center and pull the left end forward until clear of the side wall Repeat for the right end Pull water trough shield forward to remove Part Number STH026 8 12 Remove ice thickness probe Compress the hinge pin on the top of the ice thickness probe Pivot the ice thickness probe to disengage one pin then the other The ice thickness probe can be cleaned at this point without complete removal If complete removal is desired disconnect the ice thickness control wiring from the control board Remove distribution tubes Distribution tubes thumbscrews are retained to prevent loss Loosen thumbscrews but do not pull thumbscrews out of distribution tube Loosen the two outer screws and pull forward on the distribution tube to release from slip joint Disassemble distribution tube by loosening the two 2 middle thumbscrews and dividing the distribution tube into two pieces Remove the water trough Depress the two tabs on the top of the water trough Turn left
152. umber 94 0565 3 It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling Read and understand all labels printed on bottles before use Caution Do not mix Cleaner and Sanitizer solutions together It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling Warning Wear rubber gloves and safety goggles and or face shield when handling Ice Machine Cleaner or Sanitizer 42 Part Number STHO026 8 12 CLEANING SANITIZING PROCEDURE This procedure must be performed a minimum of once every six months The ice machine and bin must be disassembled cleaned and sanitized All ice produced during the cleaning and sanitizing procedures must be discarded Removes mineral deposits from areas or surfaces that are in direct contact with water PREVENTATIVE MAINTENANCE CLEANING PROCEDURE This procedure cleans all components in the water flow path and is used to clean the ice machine between the bi yearly cleaning sanitizing procedure EXTERIOR CLEANING Clean the area around the ice machine as often as necessary to maintain cleanliness and efficient operation Wipe surfaces with a damp cloth rinsed in water to remove dust and dirt from the outside of the ice machine If a greasy residue persists use a damp cloth rinsed in a mild dish soap and water solution Wipe dry with a clean soft cloth The
153. value outside of the valid range for more than 10 continous minutes E27 Bin Prb Fault Bin Hi Sens AUCS Aucs not Present Event When the AUCS clean option is selected from the menu the control checks for the presence of the E28 AUCS Log only No alarm AUCS board and if the is not connected it will signal an Event AUCS This will be cleared as soon as the hardware is detected USB Comm Event Log only No E29 USB COMM Alarm USB Communication error no USB drive in port or defective USB drive USB download error dind Event E30 USB DNLD Log only No alarm USB Download error related to USB drive or a defective USB drive Safe mode allows the ice machine to operate for a period of time in the event of a WLP or ITP E31 Safe Mode Safe Mode Event Log only No sensor failure The controller allows the machine to operate based on historical information alarm collected and model data information stored in the controllers memory USB FLASH DRIVE SPECIFICATIONS AND FORMATTING Updating firmware on Indigo model ice machines requires a properly formatted 2 GB or smaller USB flash drive All USB flash drives must be formatted before use to remove any software programs or files currently on the flash drive USB Flash Drive Specifications USB 2 Version 2GBorless capacity Fat32File System 512 MB File Allocation Unit USB Flash Drive Formatting Procedure to format a USB flash drive varies wi
154. ve harvest cycles Dual Evaporator Models Harvest time exceeds 7 minutes for 500 consecutive harvest cycles Possible Cause Checklist Improper Installation e Refer to Installation Visual Inspection Checklist page 133 Water System Water area evaporator dirty Dirty defective water dump valve Vent tube not installed on water outlet drain Water freezing behind evaporator Plastic extrusions and gaskets not securely mounted to the evaporator Clogged water distribution tube Electrical System Ice thickness probe out of adjustment Bin switch closed defective Premature harvest Refrigeration System Non Manitowoc components Improper refrigerant charge Defective head pressure control valve Defective harvest valve TXV flooding check bulb mounting Defective fan cycling control Part Number STH026 8 12 115 Troubleshooting By Symptom The troubleshooting procedures follow flow charts There are four symptoms the symptom that you are experiencing will determine which flow chart to use The flow chart asks yes and no questions to determine the problem The flow chart will direct you to a procedure to correct the problem QuietQube remote condensing units use separate charts SYMPTOM 71 Ice Machine Stops Running Ice machine is in Ice Making cycle or Has a History of Shutting Down e Refer to Ice Machine Stops Running Flow Chart SYMPTOM 2 Ice Machine has a Long Freeze Cycle Ice Formation is Thick
155. water in contact with the water level probes water inlet valve turns OFF after water contacts the water level probes for 3 continuous seconds The water inlet valve can cycle ON and OFF once in the prechill and up to two times in the freeze cycle e Maximum fill time is 12 5 minutes for single evaporator machines 16 5 minutes for dual evaporator machines The water inlet valve energizes in the Prechill cycle and will de energize if water touches the high level probe in most instances the water trough can t fill in the prechill cycle and the water inlet valve will remain energized into the freeze cycle The water inlet valve will remain energized until water contacts the high water probe The water inlet valve will cycle ON and then OFF one more time to refill the water trough The water inlet valve is now OFF for the duration of the freeze cycle 166 Part Number STH026 8 12 Diagnostics SYMPTOMS Water trough overfills Water trough will not fill WATER TROUGH OVERFILLING DURING THE FREEZE CYCLE Step 1 Press the power button and turn off the ice machine Step 2 If water continues to flow with the ice machine off disconnect power If water continues to flow with power disconnected verify water pressure is below 80 psig before replacing the water inlet valve If the water stops continue with step 2 Step 3 Check water level probe mounting and verify secure wiring connections at the probe and control
156. wn list 5 Verify or select the settings below e Volume Label is Optional Rename if desired File System Fat32 Allocation Unit Size must be 512 MB Deselect Perform A Quick Format no checkmark 6 Left click on you will receive a warning Formatting will remove all data left click on OK wait until formatting is complete and status indicates Healthy then close the disk management window Part Number STH026 8 12 97 UPGRADING FIRMWARE WITH A FLASH DRIVE OR TRANSFERRING SETUP DATA TO MULTIPLE MACHINES Important The flash drive must be formatted before using All files and software on the flash drive are removed during the formatting process Refer to page 94 USB Flash Drive Specifications and Formatting 1 Drag and drop the files from your email onto a flash drive or refer to Exporting data to a flash drive to transfer settings to multiple machines Ensure that the ice machine s power is on Press the Menu button Press the Down arrow until Service is highlighted Press the Checkmark The Service menu will be displayed USB Setup Stick Download Frm 6 Press the Down arrow until USB Setup is highlighted 7 Press the Checkmark USB Stick will appear highlighted 8 Press the Checkmark again A submenu with Download Frm Download Firmware appears 9 Ensure that Download Frm is highlighted and press the Checkmark A display of instructions will appear Oo
157. y opening and re closing of the bin switch de energizes the harvest valve for that evaporator When the bin switch has opened and closed the ice machine will terminate the harvest sequence and return to the freeze sequence Step 3 4 106 Part Number STH026 8 12 AUTOMATIC SHUT OFF 7T Automatic Shut Off Ice Machine Section Shuts off when The storage bin is full at the end of a harvest sequence The sheet of cubes fails to clear the water curtain and holds it open Ice damper is held down Bin level probe thermistor senses setpoint when used After the water curtain or ice damper are held open for 30 seconds the ice machine shuts off The ice machine remains off for 10 minutes before it can automatically restart ICVD Condensing Unit The liquid line solenoid valve closes and the condensing unit pumps down The LPCO opens and signals the control board The control board starts a ten minute delay period and opens the 24 VAC circuit to the contactor coil stopping the compressor and condenser fan motor RESTART AFTER AUTOMATIC SHUT OFF The ice machine remains off until enough ice has been removed to allow the ice to fall clear of the water curtain or ice damper As the water curtain or ice damper swings back to the operating position the bin switch re closes and the ice machine restarts steps 1 2 provided the 10 minute delay period is complete Part Number STH026 8 12 107 920 15 JequinN
158. y Registration Card 19 Commercial Warranty Coverage 20 Residential Ice Machine Warranty 22 Installation Stacking Two Ice Machines on a Single Storage Bin 27 Ice Deflector 27 Location of Ice Machine 28 Head 28 Ice Beverage Models 29 Location of ICVD Condensing Units 30 Clearance Requirements 31 Ice Machine Heat of Rejection 32 11470C 11870C 12170C Installation on a Manitowoc Bin 33 Ice Machine on a Dispenser Installation 34 Lineset Applications 35 QuietQube amp Remote Condensing Unit 36 ICVD Transformer Wiring 37 ICVD Interconnecting Wiring 37 Additional Refrigerant Charge For 51 to 100 Line Sets 38 Calculating Allowable Lineset Distance 39 Part Number STH026 8 12 Maintenance Cleaning and Sanitizing 41 General tee eee 41 Cleaning Sanitizing Procedure 43 Preventative Maintenance Cleaning Proce GUIC erm ui a ee E RES 43 Exterior Cleaning 43 Cleaning Sanitizing Procedure 44 Cleaning Procedure 44 Sanitizing Procedure 47 Parts Removal for Cleaning Sanitizing 50 Operation Control Panel Features 61 ButtOns 2 2 ncaa eee 61 Display Panel 62 Menu Navigation Overview 63 Display Panel Navigation

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