Manitowoc QuietQube Series Technician's Handbook
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Manitowoc QuietQube Series Technician's Handbook

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QuietQube Series Ice Machines
Technician's Handbook
Part Number: 000015431 Rev01 5/19

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Summary of Contents for Manitowoc QuietQube Series

  • Page 1 ® QuietQube Series Ice Machines Technician’s Handbook Part Number: 000015431 Rev01 5/19...

  • Page 3: Safety Notices

    Safety Notices Read these precautions to prevent personal injury: • 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. • Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty.

  • Page 4: Definitions

    DEFINITIONS DANGER Indicates a hazardous situation that, if not avoided, will result in death or serious injury. This applies to the most extreme situations. Warning Indicates a hazardous situation that, if not avoided, could result in death or serious injury. Caution Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
  • Page 5 Warning Follow these electrical requirements during installation of this equipment: • All field wiring must conform to all applicable codes of the authority having jurisdiction. It is the responsibility of the end user to provide the disconnect means to satisfy local codes. Refer to rating plate for proper voltage.
  • Page 6 Warning Follow these precautions to prevent personal injury during installation of this equipment: • Installation must comply with all applicable equipment fire and health codes with the authority having jurisdiction. • Connect to a potable water supply only. • To avoid instability the installation area must be capable of supporting the combined weight of the equipment and product.
  • Page 7 Warning Follow these precautions to prevent personal injury while operating or maintaining this equipment: • Legs or casters must be installed and the legs/casters must be screwed in completely. When casters are installed the mass of this unit will allow it to move uncontrolled on an inclined surface.
  • Page 8 Warning Follow these precautions to prevent personal injury while operating or maintaining this equipment: • Objects placed or dropped in the bin can affect human health and safety. Locate and remove any objects immediately. • Never use sharp objects or tools to remove ice or frost.
  • Page 9 DANGER Follow these precautions to prevent personal injury during use and maintenance of this equipment: • It is the responsibility of the equipment owner to perform a Personal Protective Equipment Hazard Assessment to ensure adequate protection during maintenance procedures. • Do Not Store Or Use Gasoline Or Other Flammable Vapors Or Liquids In The Vicinity Of This Or Any Other Appliance.
  • Page 10 Warning Follow these precautions to prevent personal injury while operating or maintaining this equipment. • Refer to nameplate to identify the type of refrigerant in your equipment. • Only trained and qualified personnel aware of the dangers are allowed to work on the equipment. •...
  • Page 11 Warning Follow these precautions to prevent personal injury during use and maintenance of this equipment: • Units with two power cords must be plugged into individual branch circuits. During movement, cleaning or repair it is necessary to unplug both power cords. •...
  • Page 12 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 13: Table Of Contents

    Clearance Requirements . . . . . . . . . . . . . . . . . . . . .29 Dual Evaporator Model Installation on a Manitowoc Bin .
  • Page 14 Maintenance Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . .37 General .
  • Page 15 Menu Navigation Touch Screen Features . . . . . . . . . . . . . . . . . . . . . . .69 Home screen icon descriptions .
  • Page 16 Troubleshooting By Symptom . . . . . . . . . . . . . . . . .93 Symptom #1 Ice Machine Stops Running . . . 93 Symptom #2 Ice Machine has a Long Freeze Cycle .
  • Page 17 Component Check Procedures Control Board, Display And Touchscreen . . .127 Operating an ice machine without a Touchscreen . . . . . . . . . . . . . . . . . . . . . . . . . . .129 Control Board Relay Test .
  • Page 18 Charts Cycle Times/24-Hour Ice Production/Refrigerant Pressure Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . .179 IF0600C/CVDF0600 .

  • Page 19: General Information

    General Information How to Read a Model Number HEAD SECTIONS Part Number: 000015431 Rev01 5/19...

  • Page 20: Cvd Condensing Units

    CVD CONDENSING UNITS CVDT 1200 3 CONDENSING CONDENSING UNIT MODEL UNIT SERIES REFRIGERANT TYPE F = R404A 3 PHASE T = R410 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 x 2.22 cm 2.22 x 2.22 x 2.22 cm 0.95 x 2.86 x 2.22 cm...

  • Page 21: Model/Serial Number Location

    Notice All Manitowoc ice machines require the ice storage system (bin, dispenser, 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 ice machines.

  • Page 22: Warranty

    Warranty For warranty information visit: www.manitowocice.com/Service/Warranty • Warranty Coverage Information • Warranty Registration • Warranty Verification Warranty coverage begins the day the ice machine is installed. WARRANTY REGISTRATION Completing the warranty registration process is a quick and easy way to protect your investment. Scan the QR code with your smart device or enter the link in a web browser to complete your warranty registration.

  • Page 23: Model Numbers

    Model Numbers QUIETQUBE® MODELS Ice Machine Head Section CVD® Condensing Unit IYF0600C CVDF0600 IBF0620C IBF0820C CVDF0900 IYF0900C IBT1020C IDT1200C CVDT1200 IYT1200C IDF1400C CVDF1400 IYF1400C IDF1800C CVDF1800 IYF1800C IDF2100C CVDF2100 IYF2100C Part Number: 000015431 Rev01 5/19...

  • Page 24: Luminice® Ii

    LuminIce® II 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. • LuminIce® bulbs require replacement on a yearly basis. •...

  • Page 25: Stacking Two Ice Machines On A Single Storage

    PERSONAL INJURY POTENTIAL Remove all ice machine panels before lifting. NNoiic IF1400C/IF1800C/IF2100C ice machines are not approved for use on Manitowoc D570 bins. NNoiic The ice machine head section must be protected if it will be subjected to temperatures below 32°F (0°C).

  • Page 26: Location Of Ice Machine

    LNiaoiNn Nf Iic Maihinc 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. • The location must be free of airborne and other contaminants.

  • Page 27: Ice Beverage Models

    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.

  • Page 28: Location Of Cvd Condensing Units

    LOCATION OF CVD CONDENSING UNITS The location selected for the CVD Condensing Unit must meet the following criteria. If any of these criteria are not met, select another location. • The air temperature must be at least -20°F (-28.9°C) but must not exceed 120°F (48.9°C). •...

  • Page 29: Clearance Requirements

    Clcaranic Rcquircmcnos QuicoQubc MNdcl Clcaranic Rcquircmcnos MNdcl Baik Sidcs IF0600C IF0900C IT1200C 5" 5" 5" IF1400C (13 cm) (13 cm) (13 cm) IF1800C IF2100C IBF0620C 2"** 5" 8" ** IBF0820C (5 cm) (13 cm) (20 cm) IBT1020C ** 24" (61 cm) is recommended on top/sides for servicing CNndcnsing Unio Clcaranic Rcquircmcnos MNdcl TNp/Sidcs...

  • Page 30: Bin

    Dual EvapNraoNr MNdcl InsoallaoiNn Nn a ManioNwNi 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 48") for your bin. The stock bin deflector must be removed and replaced with the correct deflector to prevent injury.

  • Page 31: Ice Machine On A Dispenser Installation

    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...

  • Page 32: Water Supply And Drains

    Waocr Supply and Drains PNoablc Waocr • Water temperature must be between 40°F (4.4°C) and 90°F (32°C). • Water pressure must be between 20 psi (140 kPa) and 80 psi (550 kPa). • Minimum internal diameter of tubing 3/8" (10 mm). Drain CNnncioiNns •...

  • Page 33: Lineset Applications

    NNoiic The 60-month compressor warranty (including the 36-month labor replacement warranty) will not apply if the Manitowoc Ice Machine, Condenser or 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.

  • Page 34: Quietqube® Remote Condensing Unit

    QuicoQubc® RcmNoc CNndcnsing Unio QuicoQubc® Iic RcmNoc Singlc Linc Sco* S Trap Maihinc Ciriuio CNndcnscr IF0600C CVDF0600 IBF0620C RC-21 IBF0820C CVDF0900 RC-31 K00172 IF0900C RC-51 IBT1020C CVDT1200 IT1200C CVDT1200 IF1400C CVDF1400 RC-20 RC-30 IF1800C CVDF1800 RC-50 K00166 RC-23 IF2100C CVDF2100 RC-33 RC-53 Minimum...

  • Page 35: Sets

    AddioiNnal Rcfrigcrano Chargc FNr 51' oN 100' Linc Scos AddioiNnal AmNuno Nf CNndcnscr Rcfrigcrano TN Bc Addcd Maihinc TN Namcplaoc Chargc IF0600C 1.5 lbs CVDF0600 IBF0620C 680 g IBF0820C 4 lbs CVDF0900 IF0900C 1814 g 2 lbs IBT1020C 907 g CVDT1200 2 lbs IT1200C...
  • Page 36 Caliulaoing AllNwablc Lincsco Disoanic Linc Sco Lcngoh The maximum length is 100' (30.5 m). Linc Sco Risc/DrNp Thc maximum risc is 35' (10.7 m). The maximum drop is 15' (4.5 m). S TRAP REQUIRED IF 35 FT. (10.7 M) RISE IS HIGHER MAXIMUM THAN 20' DISTANCE...

  • Page 37: Cleaning And Sanitizing

    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. Caution...

  • Page 38: Cleaning/Sanitizing Procedure

    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.

  • Page 39: Touchscreen Operation For The Clean Cycle

    Touchscreen Operation For The Clean Cycle STARTING A CLEAN CYCLE Pressing the clean button will display a Continue/Abort screen, and a warning that pressing Continue will result in a clean cycle that can last up to 35 minutes. WATER CURTAIN/DAMPER OPERATION DURING THE CLEAN CYCLE The water curtain/damper must remain closed during the clean sequence.

  • Page 40: Cleaning/Sanitizing Procedure

    Cleaning/Sanitizing Procedure 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.
  • Page 41 Step 1 Open the front door to access the evaporator compartment. Ice must not be on the evaporator 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).
  • Page 42 Step 5 Wait until the clean cycle is complete, 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 6 Remove parts for cleaning. Please refer to the proper parts removal for your ice machine.

  • Page 43: Sanitizing Procedure

    Step 8 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).
  • Page 44 Step 12 Replace all removed components. Step 13 Wait 20 minutes. Step 14 Reapply power to the ice machine and press the Clean button. Step 15 Press the Clean button and select “Make ice when complete”. Water will flow through the water dump valve and down the drain.

  • Page 45: Parts Removal For Cleaning/Sanitizing

    PARTS REMOVAL FOR CLEANING/SANITIZING Single Evaporator Ice Machines A. Remove the water curtain • Gently flex the curtain 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.
  • Page 46 D. Remove the 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.
  • Page 47 Ice Beverage Ice Machines A. Remove splash shield • Grasp the top center of splash shields. • Lift up and then out. B. Remove ice thickness probe • Compress the hinge pin on the top of the ice thickness probe. •...
  • Page 48 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 •...
  • Page 49 Dual Evaporator Ice Machines A. Remove front splash shield • Grasp the top of the splash shield. • Lift up and then out. B. Remove evaporator splash shields • Grasp the top center of splash shields. • Lift up and then out. C.
  • Page 50 D. 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.
  • Page 51 G. 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. •...
  • Page 52 Clean the probes using the following procedure. NOTE: Do not soak electrical connectors in cleaner or sanitizer solution. 1. Mix a solution of Manitowoc ice machine cleaner and water (2 ounces of cleaner to 16 ounces of water) in a container.
  • Page 53 Water Inlet Valve The water inlet valve normally does not require removal for cleaning. Refer to ”Water System Checklist” on page 103, 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.

  • Page 54: Preventative Maintenance Cleaning Procedure

    Preventative Maintenance Cleaning Procedure This procedure will descale the components in the water flow path, and is used to descale the ice machine between the bi-yearly cleaning/sanitizing procedures. Ice machine cleaner/descaler is used to remove lime scale and mineral deposits. Ice machine sanitizer disinfects and removes algae and slime.
  • Page 55 Model Amount of Cleaner IF0600C/IBF0620C/IBF0820C 5 ounces (150 ml) IF0900C/IBT1020C/IT1200C IF1400C/IF1800C/IF2100C 9 ounces (265 ml) 4. Close and secure the front door. The ice machine will automatically start ice making after the descale cycle is complete (approximately 24 minutes). NOTE: Once the cycle has started it must complete before the ice machine can make ice again.

  • Page 56: Removal From Service/Winterization

    Removal from Service/Winterization General Special precautions must be taken if the ice machine is to be removed from service for an extended period of time or exposed to ambient temperatures of 32°F (0°C) or below. Notice If water is allowed to remain in the ice machine in freezing temperatures, severe damage to some components could result.

  • Page 57: Operation

    Operation Operational Checks GENERAL Manitowoc 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 •...

  • Page 58: Ice Thickness Check

    CE THCKNESS CHECK The ice thickness probe is factory-set to maintain the ice bridge thickness at 1/8 in. (3 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 to make an adjustment, then replace immediately after the adjustment is made.
  • Page 59 Control Board TiIers The control board has the following non-adjustable timers: • The 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”...

  • Page 60: Sequence Of Operation

    Sequence of Operation QUETQUBE® 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.

  • Page 61: Freeze Sequence

    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 energizes and water flows over the evaporator.
  • Page 62 Water nlet Valve The water inlet valve energized in prechill. After water contacts the low and high water probes the water fill valve de-energizes. Ice builds on the evaporator and the water level drops. When water loses contact with the high water probe, the water fill valve energizes until water contacts the high water probe again.

  • Page 63: Harvest Sequence

    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. CVD Condensing Unit: When the refrigerant pressure is low enough to open the fan cycling pressure control the condenser fan motor...

  • Page 64: Automatic Shut-Off

    AUTOMATIC SHUT-OFF 7. AutoIatic Shut-Off ce 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. • One or both ice dampers are held down.
  • Page 65 Part Number: 000015431 Rev01 5/19...
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  • Page 69: Menu Navigation

    Menu Navigation Power Button Touchscreen Lock Clean Button 11/18/2018 10:42 AM MAKING Touch Screen Features The Indigo® control panel offers a series of pressure- sensitive buttons and an interactive touchscreen. Buttons Power Button: Provides On/Off functions for the ice machine. Lock/Unlock Button: Allows or prevents touchscreen navigation.
  • Page 70 Touchscreen Home screen allows viewing of ice 11/18/2018 10:42 AM machine status, alerts and messages. Navigation with touchscreen MAKING provides access to menu items,machine information, settings and event logs. Setup and Energy Saver settings can be adjusted along with access to service and troubleshooting information.

  • Page 71: Home Screen Icon Descriptions

    Information icon provides model and serial number, installation date and other information specific to the ice machine. Service Locator Provides contact information for your local service support - Default is the Manitowoc Ice website service locator Lock/Unlock Indicates if screen is locked or unlocked.
  • Page 72 Icon Description iAuCS This icon appears when the iAUCS activates during a programed cleaning cycle. “Part Number: 000015431 Rev01 5/19”...

  • Page 73: Setup Wizard

    Setup Wizard Screens will automatically advance after a selection is made or press the arrows to advance/go back one screen. All settings can be accessed and changed without the wizard by using menu screen navigation. Setup Description Press ON/OFF On/Off button is used to start/stop ice making. Button Select Default is English.

  • Page 74: Menu Navigation Overview

    Menu Navigation Overview SETTINGS MENU SCREEN NAVIGATION Select SETTINGS Icon from the Home Screen to access Main Menu screen. The main menu screen contains four main headings, which allow access to subheadings under each main heading. Energy Ice Program Continuous Mode - Default, No Program Time Program - Select Daily On/Off times Weight Program - Select Daily Production Weight Water Usage...
  • Page 75 Service Data Real Time Data Time and Temperature Inputs Outputs Data History for 5 Previous Days Minimum and Maximum Freeze (Length, Time of day, Thermistor Temperatures) Minimum and Maximum Harvest (Length, Time of day, Thermistor Temperatures) Lifetime Data History Installation Date Control Board Replacement Date Control Board Manufacture Date Runtime...
  • Page 76 Screen Calibration Button Diagnostics Screen Diagnostics Screen Calibration Contact information Factory defaults to QR code and website address to Manitowoc Ice’s Global Locator. Edit Contact Information Button. Upgrade Firmware Export Data iAuCS Manually initiate the iAuCS pump for pump/hose priming. NOTE: The clean button does not initiate the iAuCS pump.
  • Page 77 Settings Language Select Language Reminders Clean Reminder Set Month Interval Air Filter Set On/Off/Interval Water Filter Set Reminder Configure Date & Time Configure Date & Time Set Time Set Date Units Standard or Metric Brightness Adjust Touch Screen Brightness For Sleep Mode or Inactivity.
  • Page 78 Reset Defaults Require Setup Wizard Optional Setup Wizard restart for training purposes or resale of equipment. Backup Current Settings Import To Ice Machine Export To USB Reset Factory Defaults “Part Number: 000015431 Rev01 5/19”...

  • Page 79: Usb Flash Drive Specifications And Formatting

    USB FLASH DRIVE SPECIFICATIONS AND FORMATTING Updating firmware on Indigo™ model ice machines requires a properly formatted 32 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.

  • Page 80: Exporting Data To A Flash Drive

    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 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.

  • Page 81: Troubleshooting

    Troubleshooting Troubleshooting Check the touchscreen for alerts - An alert icon with the number of messages will be displayed if alerts are present. Pressing the alert icon will display the alert log which will allow viewing and resetting of alerts. Refer to the alert log and event log on the following pages for a description of the event.

  • Page 82: Event Log

    EVENT LOG Refer to Event Log Detail For Code descriptions. Displayed Text Code Description Long Freeze Long Freeze Cycle Long Harvest Long Harvest Cycle Power Loss Input Power Loss Hi cnd Temp or High Condenser Temperature Wtr Cnd Fault HPC Fault High Pressure Control Opened Spare Starving TXV...

  • Page 83: Event Log Detail

    Displayed Text Code Description Checksum Check Sum Error WatchDog Watch Dog Event UI Comm UI Comm Event EVENT LOG DETAIL E01 Long Freeze 3 consecutive 35 minute freeze cycles = Ice machine is off. E02 Long Harvest 3 consecutive 7minute harvest cycles = Ice machine is off. E03 Power Loss When power is interrupted to the ice machine the control board will log the event in the ELOG and stamp the loss of...
  • Page 84 E09 Flooding Evaporator Fault Single Evaporator, Single Circuit Average compressor discharge line temperature during the first 6 minutes of the freeze cycle (T2) compared to the average of the Prechill (T1) +50°F is less than 1.05°F. E10 Flooding Evaporator Fault Dual TXV, Dual Circuit Average compressor discharge line temperature during the first 6 minutes of the freeze cycle (T2) compared to the average of the Prechill (T1) +50°F is less than 1.05°F.
  • Page 85 E19 Ice Thickness Probe Fault The monitored Frequencies is out of the appropriate range (Probe unplugged or problem with microphone). E20 Water System Fault Any of the following: 1. Sensing high water probe and not low water probe. 2. Evaporator outlet temperature is less than -10°F 6.5 to 7.5 minutes in freeze cycle.
  • Page 86 E26 T6 or T7 Temperature Issue The thermistor had an average value reading outside of the valid range. E27 T6 or T7 Temperature Issue The thermistor had an average value reading outside of the valid range. E28 AuCS When the AUCS clean option is selected from the menu, the control checks for the presence of the AUCS board.
  • Page 87 E36 Check Sum Error Event Log Only: Activates on power loss. E37 Watch Dog Event Event Log Only: Micro Process time out, possible electrical noise. E38 UI Comm Event Event Log Only: User interface communication error: loose communication cable, power interruption. Part Number: 000015431 Rev01 5/19...

  • Page 88: Thaw Cycle

    THAW CYCLE When the damper/curtain does not open during the 7 minute harvest cycle the following ice thaw cycle occurs: • The compressor, harvest solenoid valve and dump valve de-energize. The water pump remains energized and the water inlet valve energizes until water touches the high water level probe.

  • Page 89: Safe Operation Mode

    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.

  • Page 90: E01 Long Freeze Cycle

    Refrigeration and electrical component failures will cause a Service Fault. Eliminate all electrical components and external causes first. If it appears that the refrigeration system is causing the problem, use Manitowoc’s procedures, charts, checklists, and other references to determine the cause.

  • Page 91: E01 Long Freeze

    • 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 • TXV starving or flooding (check bulb mounting) •...

  • Page 92: E02 Long Harvest

    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) •...

  • Page 93: Troubleshooting By Symptom

    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.

  • Page 94: Reset To Factory Defaults

    RESET TO FACTORY DEFAULTS Before starting troubleshooting procedures, reset the control board to factory defaults to prevent mis-diagnosis. Before resetting to factory defaults do one of the following: Copy settings to a usb device and flash settings into the control board when diagnostics are complete.

  • Page 95: Symptom #1 Ice Machine Will Not Run

    Part Number: 000015431 Rev01 5/19...
  • Page 96 Part Number: 000015431 Rev01 5/19...
  • Page 97 Part Number: 000015431 Rev01 5/19...

  • Page 98: Diagnosing A Condensing Unit

    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.” 1. Verify primary voltage is supplied to the ice machine condensing unit and the fuse/circuit breaker is closed. 2.

  • Page 99: Symptom #2 Low Production, Long Freeze Cycle

    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 Information must be verified to eliminate non-refrigeration problems which can cause good refrigeration components to appear defective.
  • Page 100 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 temperature 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.
  • Page 101 • Another ice machine is required. • 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. Part Number: 000015431 Rev01 5/19...
  • Page 102 Installation/Visual Inspection Checklist Inadequate Clearances • Check all clearances on sides, back and top. See “Clearance Requirements” on page 29 Ice machine is not level • Level the ice machine Condenser is dirty • Clean the condenser Water filtration is plugged (if used) •...
  • Page 103 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).
  • Page 104 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.
  • Page 105 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.
  • Page 106 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.
  • Page 107 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 “Cycle Times/24-Hour Ice Production/ Refrigerant Pressure Charts” on page 179 for ice machine being checked.
  • Page 108 • Defective fan motor • Defective head pressure control valve (Remote) Other • Overcharged • Non-condensible (air) in system • Wrong type of refrigerant • Non-Manitowoc components in system • High side refrigerant lines/component restricted Part Number: 000015431 Rev01 5/19...
  • Page 109 Defective head pressure control valve, won’t bypass page 159 • Defective fan cycle control, stuck closed (page 154) Other • Undercharged • Wrong type of refrigerant • Non-Manitowoc components in system • Liquid line/component restricted Part Number: 000015431 Rev01 5/19...
  • Page 110 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.
  • Page 111 Freeze Cycle” on page 107 Improper Refrigerant Charge • Overcharged • Wrong type of refrigerant • Non condensible in system Components • Harvest valve leaking • TXV flooding • Defective compressor Other • Non-Manitowoc components in system Part Number: 000015431 Rev01 5/19...
  • Page 112 Improper Refrigerant Charge • Undercharged • Wrong type of refrigerant Other • Non-Manitowoc components in system • Improper water supply over evaporator – refer to “Water System Checklist” on page 103 • Restricted/plugged liquid line drier • Restricted/plugged tubing in suction side of refrigeration system •...
  • Page 113 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. Use the following procedures to determine if a harvest valve is remaining partially open during the freeze cycle. QUIETQUBE®...
  • Page 114 Analyzing Freeze Cycle Suction Line Temperature Suction line temperature alone cannot diagnose an ice machine. However, comparing this temperature during the freeze cycle can help diagnose an ice machine malfunction. The actual temperature of the suction line varies by model, and will change throughout the freeze cycle.

  • Page 115: Symptom #3 Harvest Problems

    SYMPTOM #3 HARVEST PROBLEMS Normal Ice Cube Melted Out Ice Cube Definition of a harvest problem; At the end of a 7 minute harvest cycle the slab(s) of ice is still contacting the evaporator. The slab of ice may or may not be removable by hand.
  • Page 116 Diagnosing Harvest Issues Follow these steps in order and refer to specific procedures referenced to troubleshoot and diagnose problems. 1. Record the model and serial number of the ice machine and condenser and verify the head section and condensing unit match. 2.
  • Page 117 5. If the cubes are not melted, confirm the line set outside diameter is correct (see page 33 )the lineset is installed correctly (see page 36) and no kinks exist in the tubing. 6. Record and verify ambient temperature is within guidelines: Air temperature entering condenser page 28 Water temperature entering the ice machine...
  • Page 118 7. Refer to chart and record refrigeration operating data. Freeze Data* HP¹ LP² LLT³ 1 minute after water starts flowing over the evaporator Middle of the freeze cycle End of the freeze cycle Harvest Data* HP¹ LP² LLT³ 30 seconds into harvest 2.5 minutes into harvest Dual Evaporators –...

  • Page 119: Failure Type And Symptoms

    FAILURE TYPE AND SYMPTOMS: Refrigerant overcharge page 159 Measured in the freeze cycle Head pressure is above or on the high end of the published numbers Sub cooling will be greater than 250F. Head Pressure Control Valve failure in the freeze cycle page 160 Measured in the freeze cycle High pressure is floating up and down...
  • Page 120 Harvest valve failure Measured in the harvest cycle High pressure will be higher Low pressure will be lower than published. Fan cycling control failure page 154 Measured in the harvest cycle Condenser fan motor does not cycle off when pressure is below fan cycle control cut out setting .

  • Page 121: Condensing Units

    Part Number: 000015431 Rev01 5/19...
  • Page 122 Part Number: 000015431 Rev01 5/19...
  • Page 123 Part Number: 000015431 Rev01 5/19...
  • Page 124 Part Number: 000015431 Rev01 5/19...

  • Page 125: Condensing Units

    Part Number: 000015431 Rev01 5/19...
  • Page 126 Part Number: 000015431 Rev01 5/19...

  • Page 127: Component Check Procedures

    Component Check Procedures CONTROL BOARD, DISPLAY AND TOUCHSCREEN FUNCTION The control board, display and touch screen provide user input and control the ice machine sequence of operation. NOTE: Anytime power is supplied to wires #55 & #56 on the control board, the “Display” and “Micro” lights will flash on and off randomly.
  • Page 128 Control Board Diagnostics 1. Micro light is not flashing. 2. Disconnect line voltage power supply to the ice machine and wait a minimum of 15 seconds, then reapply power. Micro light flashes - continue with step 3. Micro light is off - Test fuse for continuity. If fuse tests good replace control board.

  • Page 129: Operating An Ice Machine Without A

    Touchscreen Diagnostics Verify touchscreen is unlocked prior to performing diagnostics. 1. Navigate to User Interface on the display and perform the on-screen instructions. • Menu / Service / Diagnostics / User Interface. NOTE: During screen calibration it is important to touch and hold down the cross hairs for three seconds at a time.

  • Page 130: Control Board Relay Test

    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.

  • Page 131: Programming A Replacement Control Board

    PROGRAMMING A REPLACEMENT CONTROL BOARD Indigo NXT 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.

  • Page 132: Usb Flash Drive Specifications And Formatting

    USB FLASH DRIVE SPECIFICATIONS AND FORMATTING Updating firmware on Indigo NXT model ice machines requires a properly formatted 32 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.

  • Page 133: Exporting Data To A Flash Drive

    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 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.

  • Page 134: Upgrading Firmware With A Flash Drive

    UPGRADING FIRMWARE WITH A FLASH DRIVE Important The flash drive must be formatted before using. All files and software on the flash drive are removed during the formatting process. 1. Drag and drop the files from website or email onto a flash drive, insuring they are not in a folder.

  • Page 135: Main Fuse

    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, 6.3 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.

  • Page 136: Bin Switch

    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.
  • Page 137 Diagnostics SYMPTOMS Bin Switch Fails Open • 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. Bin Switch Fails Closed •...
  • Page 138 DIAGNOSTICS 1. Verify bin switch, curtain/damper and curtain/damper magnet are in place and navigate to inputs. • Menu/Service/Diagnostics/Inputs 2. Open and close the ice damper(s) repeatedly while observing the display and control board lights. Curtain switch cycles open/closed - The display indicates open/closed and the control board light energizes/de-energizes - Bin switch is operating normally...

  • Page 139: Water Level Control Circuitry

    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 measure conductivity for diagnostics.
  • Page 140 PRECHILL & 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 water in contact with the water level probes. •...
  • Page 141 Diagnostics Check real time data 1. Navigate to Menu/Service/Diagnostics/Inputs 2. Focus on Water LVL Low and Water LVL High display • Not sensing displayed: indicates not touching water. • Sensing displayed: Indicates touching water. NOTE: If using reverse osmosis or deionized water, increase sensitivity by moving the jumper over one pin (refer to “Electronic Control Board”...

  • Page 142: Ice Thickness Probe (Initiates Harvest)

    ICE THICKNESS PROBE (INITIATES HARVEST) FUNCTION The ice thickness probe senses ice on the evaporator and signals the control board to start a harvest cycle. SPECIFICATIONS Freeze Time Lock-In Feature The ice machine control system incorporates a 6 minute freeze time lock-in feature. This prevents the ice machine from short cycling in and out of harvest.
  • Page 143 Ice Thickness Check The ice thickness probe is factory-set to maintain the ice bridge thickness at 1/8 in. (3 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 to make an adjustment, then replace immediately after the adjustment is made.
  • Page 144 Ice Thickness Probe Diagnostics 1. Perform Control Board Self Check and insure the internal ITP circuit passes before proceeding. (Menu/Service/Diagnostics/Control Board/Self Check) • Ice Thickness Circuit: Pass = Continue with step #2. • Ice Thickness Circuit: Fail = Change control board. 2.
  • Page 145 The initial numbers displayed are constantly changing and are less than 3000. With an initial reading of less than 300 and a tap test reading of 3300 or higher indicates a good ice thickness probe and control board. The initial numbers displayed do not change or initial numbers did not increase by 3000 during tap test.

  • Page 146: Bin Level Probe

    BIN LEVEL PROBE The bin level probe accessory will place the ice machine in a full bin state when ice lowers the temperature to 360 F or less. The touchscreen will display Program Mode On during the full bin state. A lower ice level in dispensers will prevent overfilling or dispense wheel or motor damage.
  • Page 147 Troubleshooting: Refer to normal operation before troubleshooting - The T5 thermistor reading must indicate 360 F or less in the freeze cycle and throughout the harvest cycle to shutoff on full bin at the end of the harvest cycle. View the T5 thermistor temperature on the touch screen (menu/service/diagnostics/temperatures).

  • Page 148: Thermistors

    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°...
  • Page 149 Thermistor Matrix Four thermistors are standard on the ice machine. They are labeled T1, T2, T3, T4. Three additional thermistors are available as an option and measure ice bin level, potable water supply temperature and air temperature entering the condenser. TEMPERATURE SENSOR LOCATION Models with 1 evaporator, 1 evaporator circuit See page 202 for graphic...
  • Page 150 SYMPTOM The alert log indicates a T1, T2, T3, or T4 Fault. CHECK PROCEDURE NOTE: Navigate to Menu/Service/Data/Real Time data/ Time & Temperature NOTE: An open thermistor will display -10°F (-23°C) and a shorted thermistor displays 400°F (204°C). Thermistor Test 1.

  • Page 151: High Pressure Cutout (Hpco) Control

    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 R404A 450 psig ±7 300 psig ±10 (3102 kPa ±48 (2068 kPa ±69 31 bar ±0.48)

  • Page 152: Low Pressure Cutout (Lpco) Control

    LOW PRESSURE CUTOUT (LPCO) CONTROL FUNCTION Supplies or interrupts power to the compressor time delay 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 R404A...

  • Page 153: Compressor Time Delay

    COMPRESSOR TIME DELAY FUNCTION Supplies or interrupts power to the compressor contactor coil. The time delay starts whenever line voltage is removed/reapplied; The contact closes when the delay period ends. Specifications Contact Delay Period SPST 300 seconds (5 minutes) Normally open +35%/-15% CHECK PROCEDURE 1.

  • Page 154: Fan Cycle Control

    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 Model Cut-In (Close) Cut-Out (Open) CVDF0600 CVDF0900 250 psig ±5 200 ±5...

  • Page 155: Harvest Assist Air Pump

    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.

  • Page 156: Compressor Electrical Diagnostics

    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.
  • Page 157 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.

  • Page 158: Diagnosing Start Components

    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.

  • Page 159: Refrigeration Components

    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.
  • Page 160 Freeze Cycle Operation All Models The 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.
  • Page 161 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 162 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.
  • Page 163 HARVEST CYCLE DIAGNOSTICS QUIETQUBE® REMOTE CONDENSING UNIT The head pressure 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 head pressure control valve that will not seat 100% closed (completely bypass the condenser) in the harvest cycle are: •...
  • Page 164 Step 3 Details Grasp Here with Hands to Compare Temperatures LIQUID LINE FROM CONDENSER HARVEST CYCLE HEAD PRESSURE 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.

  • Page 165: Suction Accumulator Operation

    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;...

  • Page 166: Recovery/Evacuation/Charging Procedures

    Notice Replace the liquid line drier after recovering the refrigerant and before evacuating and recharging. Use only a Manitowoc (OEM) liquid line filter-drier to prevent voiding the warranty. Notice Recovery/evacuation QuietQube®...

  • Page 167: Connections

    CONNECTIONS Manifold gauge sets must utilize low loss fittings to comply with U.S. Government rules and regulations. CVD condensing units with reciprocating compressors are manufactured with a check valve in the compressor discharge line. The check valve requires an additional connection on the condensing unit during evacuation or recovery procedures.

  • Page 168: Recovery/Evacuation Procedures

    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.

  • Page 169: Charging Procedures

    CHARGING PROCEDURES 1. The ice machine must be off. 2. Close the vacuum pump valve and the low side manifold gauge valve. 3. Open the refrigerant cylinder and add the proper refrigerant charge (shown on nameplate) into the system high side (receiver service valve and discharge line shut-off valve).

  • Page 170: System Contamination Clean-Up

    This section describes the basic requirements for restoring contaminated systems to reliable service. Notice Routine adjustments and maintenance procedures 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.

  • Page 171: Contamination Cleanup Chart

    CONTAMINATION CLEANUP CHART Symptoms/Findings Required Cleanup Procedure No symptoms or suspicion of Normal evacuation/ contamination recharging procedure Moisture/Air Contamination Mild contamination symptoms cleanup procedure Refrigeration system open to atmosphere for longer than 15 minutes Refrigeration test kit and/or acid oil test shows contamination No burnout deposits in open compressor lines...

  • Page 172: Cleanup Procedure

    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.
  • Page 173 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 and TXV. 3. Wipe away any burnout deposits from suction and discharge lines at compressor. 4.
  • Page 174 Important Dry nitrogen is recommended for this procedure. This will prevent refrigerant release. 9. Follow the normal evacuation procedure, except replace the evacuation step with the following: 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).

  • Page 175: Liquid Line Filter-Driers

    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 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.

  • Page 176: Replacing Pressure Controls Without Removing

    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 • High pressure cut-out control •...

  • Page 177: Total System Refrigerant Charge

    Total System Refrigerant Charge QuietQube® CVD Models Ice machines listed with an F in the model number use R404A refrigerant - Ice machines listed with a T in the model number use R410A. This information is for reference only. Refer to the ice machine model/serial label to verify the system charge and refrigerant type.
  • Page 178 Condensing Refrigerant Line Set Model Unit Charge Length 15.00 lbs. 0-50 ft. 6.80 kg 0-15 m IF1800C CVDF1800 17.00 lbs 51-100 ft. 7.71 kg 15-30 m 18.00 lbs. 0-50 ft. 8.16 kg 0-15 m IF2100C CVDF2000 22.00 lbs 51-100 ft. 9.98kg 15-30 m Part Number: 000015431 Rev01 5/19...

  • Page 179: Cycle Times/24-Hour Ice Production/Refrigerant

    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.

  • Page 180: If0600C/Cvdf0600

    IF0600C/CVDF0600 Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. All data on this page is preliminary and subject to change Cycle Times Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Water Temperature °F/°C Harvest Condenser Time...

  • Page 181: Ibf0620C/Cvdf0600

    IBF0620C/CVDF0600 Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. All data on this page is preliminary and subject to change Cycle Times Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Water Temperature °F/°C Harvest Condenser Time...

  • Page 182: Ibf0820C/Cvdf0900

    IBF0820C/CVDF0900 Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. All data on this page is preliminary and subject to change Cycle Times Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Water Temperature °F/°C Harvest Condenser Time...

  • Page 183: If0900C/Cvdf0900

    IF0900C/CVDF0900 Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. All data on this page is preliminary and subject to change Cycle Times Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Water Temperature °F/°C Harvest Condenser Time...

  • Page 184: Ibt1020C/Cvdt1200

    IBT1020C/CVDT1200 Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. Cycle Times Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Water Temperature °F/°C Harvest Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 6.2-7.2 6.5-7.8 7.4-8.8...

  • Page 185: It1200C/Cvdt1200

    IT1200C/CVDT1200 Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. Cycle Times Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Water Temperature °F/°C Harvest Condenser Time 50/10 70/21 90/32 °F/°C -20 to 70/ 6.4-7.7 7.4-8.8 7.8-9.4...

  • Page 186: If1400C/Cvdf1400

    IF1400C/CVDF1400 Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. All data on this page is preliminary and subject to change Cycle Times Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Water Temperature °F/°C Harvest Condenser Time...

  • Page 187: If1800C/Cvdf1800

    IF1800C/CVDF1800 Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. All data on this page is preliminary and subject to change Cycle Times Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Water Temperature °F/°C Harvest Condenser Time...

  • Page 188: If2100C/Cvdf2100

    IF2100C/CVDF2100 Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. All data on this page is preliminary and subject to change Cycle Times Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Water Temperature °F/°C Harvest Condenser Time...

  • Page 189: Wiring Diagrams

    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 Always disconnect power before working on electrical circuitry. Some components are wired differently on energy efficient machines.

  • Page 190: If0600C/Ibf0620C/Ibf0820C/If0900C 1Ph

    IF0600C/IBF0620C/IBF0820C/IF0900C 1PH QuietQube® Ice Machine Head Section Part Number: 000015431 Rev01 5/19...
  • Page 191 IF0600C/IBF0620C/IBF0820C/IF0900C/IT0900C 1Ph Number Component Air Pump Harvest Assist Bin Switch Control Board Touchscreen Ice Thickness Probe See Control Board Schematic For Detail Solenoid Valve - Harvest Solenoid Valve - Liquid Line Thermistors Transformer Control Board Water Dump Valve Water Inlet Valve Water Level Probe Water Pump Wire Colors...

  • Page 192: It1200C/Ibt1020C 1Ph

    IT1200C/IBT1020C 1PH QuietQube® Ice Machine Head Section Part Number: 000015431 Rev01 5/19...
  • Page 193 IT1200C/IBT1020C 1PH Number Component Air Pump Harvest Assist Bin Switch Control Board Touchscreen Ice Thickness Probe See Control Board Schematic For Detail Solenoid Valve - Harvest Solenoid Valve - Harvest Solenoid Valve - Liquid Line Thermistors Transformer Control Board Water Dump Valve Water Inlet Valve Water Level Probe Water Pump...

  • Page 194: If1400C/If1800C/If2100C 1Ph

    IF1400C/IF1800C/IF2100C 1PH QuietQube® Ice Machine Head Section Part Number: 000015431 Rev01 5/19...
  • Page 195 IF1400/IF1800C/IF2100C 1ph Number Component Air Pump Harvest Assist Bin Switch Control Board Touchscreen Ice Thickness Probe See Control Board Schematic For Detail Solenoid Valve - Harvest Left Hand Solenoid Valve - Harvest Right Hand Solenoid Valve - Liquid Line Thermistors Transformer Control Board Water Dump Valve Water Inlet Valve...

  • Page 196: Cvd 1Ph Condensing Unit

    CVD 1PH CONDENSING UNIT QuietQube® CVD Condensing Unit Part Number: 000015431 Rev01 5/19...
  • Page 197 CVD 1PH Condensing Unit Number Component Compressor Compressor Overload Compressor Potential Relay Compressor Time Delay Relay Compressor Run Capacitor Compressor Start Capacitor Condenser Fan Motor Condenser Fan Motor Run Capacitor Contactor Contacts Contactor Coil High Pressure Cutout Low Pressure Cutout Wire Colors Black Blue...

  • Page 198: Cvd 3Ph Condensing Unit

    CVD 3PH CONDENSING UNIT QuietQube® CVD Condensing Unit Part Number: 000015431 Rev01 5/19...
  • Page 199 CVD 3PH Condensing Unit Number Component Compressor Compressor Time Delay Relay Condenser Fan Motor Condenser Fan Motor Run Capacitor Contactor Contacts Contactor Coil High Pressure Cutout Low Pressure Cutout Wire Colors Black Blue PRPL Purple Yellow Part Number: 000015431 Rev01 5/19...

  • Page 200: Electronic Control Board

    Electronic Control Board 34-1 34-2 34-3 34-4 49-1 49-2 49-3 49-4 Part Number: 000015431 Rev01 5/19...
  • Page 201 Electronic Control Board Schematic Number Description iAuCS Bin Switch Compressor Contactor Coil Relay Touchscreen Fuse High Pressure Cutout Ice Thickness Probe LED - Relays 34-1 LED - Display 34-2 LED - Micro 34-3 LED - Clean 34-4 LED - Harvest 34-5 LED - Ice Thickness Probe 34-6...

  • Page 202: Refrigeration Tubing Schematics

    Refrigeration Tubing Schematics IF0600C/CVDF0600 IB0620C/CVDF0600 IBF0820/CVDF0900 IF0900C/CVDF0900 Part Number: 000015431 Rev01 5/19...
  • Page 203 IF0600C/CVDF0600 IB0620C/CVDF0600 IBF0820/CVDF0900 IF0900C/CVDF0900 Number Component Compressor Discharge Check Valve Condenser - Remote Air-Cooled Head Pressure Control Valve Liquid Line Shut-off Valve Liquid Line Check Valve Receiver Receiver Access Valve Liquid Line Filter Drier Liquid Line Solenoid Valve Heat Exchanger TXV - Thermostatic Expansion Valve Evaporator Harvest Solenoid Valve...

  • Page 204: Ibt1020C/Cvdt1200 It1200C/Cvdt1200

    IBT1020C/CVDT1200 IT1200C/CVDT1200 Part Number: 000015431 Rev01 5/19...
  • Page 205 IBT1020C/CVDT1200 IT1200C/CVDT1200 Number Component Compressor Discharge Check Valve Condenser - Remote Air-Cooled Head Pressure Control Valve Liquid Line Shut-off Valve Liquid Line Check Valve Receiver Receiver Access Valve Liquid Line Filter Drier Liquid Line Solenoid Valve Heat Exchanger TXV - Thermostatic Expansion Valve Evaporator Harvest Solenoid Valve Suction Shut-off Valve...

  • Page 206: Dual Evaporators

    Dual Evaporators IF1400C/IF1800C Part Number: 000015431 Rev01 5/19...
  • Page 207 IF1400C/IF1800 Number Component Compressor Discharge Check Valve Condenser - Remote Air-Cooled Head Pressure Control Valve Liquid Line Shut-off Valve Liquid Line Check Valve Receiver Receiver Access Valve Liquid Line Filter Drier Liquid Line Solenoid Valve Heat Exchanger TXV - Thermostatic Expansion Valve Evaporator Harvest Solenoid Valve Suction Shut-off Valve...

  • Page 208: If2100C

    IF2100C Part Number: 000015431 Rev01 5/19...
  • Page 209 IF2100C Number Component Compressor Discharge Check Valve Condenser - Remote Air-Cooled Head Pressure Control Valve Liquid Line Shut-off Valve Liquid Line Check Valve Receiver Liquid Line Filter Drier Liquid Line Solenoid Valve Heat Exchanger TXV - Thermostatic Expansion Valve Evaporator Harvest Solenoid Valve Suction Shut-off Valve S Trap - Required on 21’...
  • Page 210 THIS PAGE INTENTIONALLY LEFT BLANK Part Number: 000015431 Rev01 5/19...
  • Page 212 MANITOWOC ICE 2110 SOUTH 26TH STREET MANITOWOC, WI 54220 844-724-2273 WWW.MANITOWOCICE.COM WWW.WELBILT.COM Bringing innovation to the table Welbilt provides the world’s top chefs, and premier chain operators or growing independents with industry leading equipment and solutions. Our cutting-edge designs and lean manufacturing tactics are powered by deep knowledge, operator insights, and culinary expertise.

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