Manitowoc Indigo Series Technician's Handbook
  1. Manuals
  2. Brands
  3. Manitowoc Manuals
  4. Ice Maker
  5. Indigo Series
  6. Technician's handbook

Manitowoc Indigo Series Technician's Handbook

Indigo series ice machine
Hide thumbs Also See for Indigo Series:
Table of Contents

Advertisement

Quick Links

See also: Installation, Use & Care Manual
Manitowoc
Preliminary Manual
Indigo™ Series
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 Preliminary 6/11

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Indigo Series and is the answer not in the manual?

Questions and answers

Ken Austin
February 7, 2025

Condenser **** won't stay on but a couple seconds

0
1 comments:
Mr. Anderson
February 11, 2025

The condenser on the Manitowoc Indigo Series may not stay on for more than a couple of seconds due to several possible issues:

1. Fan Cycling Control – If a fan cycling control is used instead of a head pressure control valve, the condenser may not function correctly. The manual states that fan cycling controls should not be used as they can lead to compressor failure.

2. Improper Installation – Issues such as restricted airflow, dirty condenser fins, or high inlet air temperature can cause the condenser to shut down quickly.

3. Electrical Issues – Problems with the condenser fan motor circuit, such as exceeding the rated amps listed on the ice machine’s serial tag, could prevent continuous operation.

4. Refrigeration System Problems – An improper refrigerant charge or a defective head pressure control valve may cause the condenser to shut off prematurely.

5. Condenser Discharge Air Recirculation – If warm air from the condenser is recirculated back into the system, it can cause overheating and shutdown.

Checking these factors can help identify and resolve the issue.

This answer is automatically generated

0
John M Samaha
February 7, 2025

Need to know when IY1404A-261 SN: 1101224994 was built

0
avaibility?
March 21, 2025

avaibility and cost?

0
1 comments:
Mr. Anderson
March 21, 2025

There are no featured offers available for the Manitowoc Indigo Series parts, meaning no offers currently meet the platform's quality, price, delivery, and customer service standards. To check availability and pricing, select "See All Buying Options" on the product page.

This answer is automatically generated

0
Alex Nissley
April 26, 2025

Hello, I'm trying to install a new motherboard but I keep getting "invalid model" message

0

Related Manuals for Manitowoc Indigo Series

Summary of Contents for Manitowoc Indigo Series

  • Page 1 Manitowoc Preliminary Manual Indigo™ Series 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 Preliminary 6/11...

  • Page 3: Safety Notices

    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...
  • Page 4 NOTE: Text set off as a Note provides you with simple, but useful, extra information about the procedure you are performing. 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 handbook, do not proceed, contact Manitowoc Foodservice.

  • Page 5: Table Of Contents

    Table of Contents General Information How to Read a Model Number ..13 Head Sections ....13 ICVD Condensing Units .
  • Page 6 Component Identification I Model Single Evaporator Models ..43 Ice Beverage Models ....44 I Model Dual Evaporator ... . . 45 I Model Quad Evaporator Models .
  • Page 7 Set-Up Menu ..... . . 83 Language ..... . 83 Time &...
  • Page 8 Operational Checks ....107 General ......107 Ice Thickness Check .
  • Page 9 Symptom #2 - QuietQube® Remote Condens- ing Unit Models ..... 189 Symptom #2 Low Production, Long Freeze QuietQube® Models- Freeze Cycle Refrig- eration System Operational Analysis Tables QuietQube®...
  • Page 10 Refrigeration Components ... 263 Head Pressure Control Valve ..263 Harvest Pressure Regulating (HPR) System Remote Condenser Only ..270 Water Regulating Valve .
  • Page 11 Charts Cycle Times/24-Hour Ice Production/ Refrigerant Pressure Charts ..307 I0300 Series ....308 I0320 Series .
  • Page 12 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 13: General Information

    General Information How to Read a Model Number HEAD SECTIONS Part Number Preliminary 6/11...

  • Page 14: Icvd Condensing Units

    ICVD CONDENSING UNITS AIR-COOLED ICVD 1495 3 CONDENSING CONDENSING UNIT MODEL UNIT SERIES 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 x 2.22 cm 2.22 x 2.22 x2.22 cm 0.95 x 2.86 x 2.22 cm Warning...

  • Page 15: Model/Serial Number Location

    Warning All Manitowoc ice machines require the ice storage system (bin, dispenser, etc.) 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 16: Model Numbers

    Model Numbers AIR-WATER-REMOTE CONDENSER MODELS Self-Contained Self-Contained Remote Air-Cooled Water-Cooled ID0302A ID0303W ---- IY0304A IY0305W ID0322A ID0323W ---- IY0324A IY0325W IR0520A IR0421W ---- ID0522A ID0423W ---- IY0524A IY0425W ID0452A ID0453W ---- IY0455W IY0454A IR0500A IR0501W IR0590N ID0502A ID0503W ID0592N IY0504A IY0505W IY0594N ID0602A...

  • Page 17: Quietqube® Models

    QUIETQUBE® MODELS ® Ice Machine Head ICVD Condensing Section Unit ID0682C IY0684C ICVD0695 IB0694YC ID0872C IY0874C ICVD0895 IB0894YC ID1072C ICVD1095 IY1074C IB1094YC ICVD1195 ID1472C ICVD1495 IY1474C ID1872C ICVD1895 IY1874C ID2172C ICVD2095 IY2174C ID3072C ICVD3095 IY3074C Part Number Preliminary 6/11...

  • Page 18: Ice Machine Warranty Information

    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...

  • Page 19: Commercial Warranty Coverage

    COMMERCIAL WARRANTY COVERAGE Manitowoc Ice, (hereinafter referred to as the "COMPANY") 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...
  • Page 20 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. P.O. Box 1720, Manitowoc, WI 54221-1720 Telephone: 920-682-0161 Fax: 920-683-7585 www.manitowocice.com...

  • Page 21: Residential Ice Machine Limited Warranty

    RESIDENTIAL ICE MACHINE LIMITED 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...
  • Page 22 WHAT ARE MANITOWOC ICE’S OBLIGATIONS UNDER 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...
  • Page 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 and 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...
  • Page 24 VENT HALL ANITOWOC FFILIATES IABLE ONSUMER THER ERSON NCIDENTAL ONSEQUENTIAL PECIAL AMAGES NCLUDING ITHOUT IMITATION ROFITS EVENUE USINESS RISING ANNER ONNECTED RODUCT REACH IMITED ARRANTY THER AUSE HATSOEVER HETHER ASED ONTRACT THER HEORY IABILITY 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.
  • Page 25 This Page Intentionally Left Blank Part Number Preliminary 6/11...
  • Page 26 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 27: Installation

    Installation Warning PERSONAL INJURY POTENTIAL Remove all ice machine panels before lifting. Warning I1470C/I1870C/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°C).

  • Page 28: Location Of Ice Machine

    Location 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. • The location must be free of airborne and other contaminants.

  • Page 29: Ice Beverage Models

    ICE BEVERAGE MODELS • Ice/Beverage Ice Machines require the installation of a thermostat to maintain dispenser ice level. The thermostat ships with the ice machine. • 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 30: Location Of Icvd Condensing Units

    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. • 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°C).

  • Page 31: Clearance Requirements

    Clearance Requirements AIR, WATER, REMOTE CONDENSER MODELS Self-Contained Self-Contained I0300 Air-Cooled Water-Cooled Top/Sides 16" (40.6 cm) 8" (20.3 cm) Back 5" (12.7 cm) 5" (12.7 cm) I0450 Self-Contained Water-Cooled and I0500 - I0600 Air-Cooled Remote* I0850 - I1000 Top/Sides 8" (20.3 cm) 8"...

  • Page 32: Quietqube® Models

    QUIETQUBE® MODELS ICVD I0680C - I0870C Ice Machine Condensing I1070C - I2170C Head Section Unit 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) Connections Out Top Front 48”...

  • Page 33: Ice Machine Heat Of Rejection

    Ice Machine Heat of Rejection Heat of Rejection Series Ice Machine Peak Conditioning* I0300 4600 5450 I0320 3800 6000 I0450 5400 6300 I0500 6100 6900 I0520 5300 6100 I0600 9000 13900 I0850 13000 16000 I1000 16250 18600 I1200 20700 24500 I1400 23500 27000...

  • Page 34: I1470C/I1870C/I2170C

    I1470C/I1870C/I2170C 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 48”) for your bin. The stock bin deflector must be removed and replaced with the correct deflector to prevent injury.

  • Page 35: Ice Machine On A Dispenser Installation

    (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-...
  • Page 36 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 37: Lineset Applications

    ! Caution 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 38: Remote Condenser

    Remote Condenser Remote Single Ice Machine Circuit Line Set* Condenser RT-20-R404A I0590N JC0495 RT-35-R404A RT-50-R404A RT-20-R404A I0690N JC0895 RT-35-R404A I0890N RT-50-R404A RT-20-R404A I1090N JC0995 RT-35-R404A RT-50-R404A RL-20-R404A I1490N JC1395 RL-35-R404A I1890N RL-50-R404A *Line Set Discharge Line Liquid Line 1/2" (1.27 cm) 5/16"...

  • Page 39: Quietqube® Remote Condensing Unit

    QUIETQUBE® REMOTE CONDENSING UNIT Remote Single QuietQube® Circuit Line Set* Ice Machine Condenser I0670C ICVD0695 IB0670C RC-26 I0870C ICVD0895 RC-36 IB0870C RC-56 I1070C ICVD1095 IB1090C ICVD1195 I1470C ICVD1495 RC-25 RC-35 I1870C ICVD1895 RC-55 I2170C ICVD2095 RC-28 RC-38 RC-58 I3070C ICVD3095 RC-29 RC-39 RC-59...

  • Page 40: Additional Refrigerant Charge For 51' To 100' Line Sets

    Additional Refrigerant Charge For 51’ to 100’ Line Sets Additional Amount of Refrigerant To Be Condenser Machine Added To Nameplate Charge I0590N JC0495 1.5 lbs - 680g I0690N JC0895 1.5 lbs - 680g I0890N JC0895 2 lbs - 907g I0870C ICVD0895 4 lbs - 1814g I1090N...

  • Page 41: Calculating Allowable Lineset Distance

    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 SV1751 35 ft. (10.7 m) Rise: The maximum distance the Condenser or Condensing Unit can be above the ice machine.
  • Page 42 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.

  • Page 43: Component Identification

    Component Identification I Model Single Evaporator Models Part Number Preliminary 6/11...

  • Page 44: Ice Beverage Models

    Ice Beverage Models ELECTRICAL WATER DISTRIBUTION TUBE COMPARTMENT THICKNESS PROBE DISPLAY & TOUCHPAD WATER WATER INLET CURTAIN VALVE WATER TROUGH DUMP VALVE ELECTRICAL COMPARTMENT LUMINICE COOL VAPOR VALVE LIQUID LINE DISCHARGE DRIER LINE CHECK VALVE LIQUID LINE SOLENOID VALVE SHUT OFF RECEIVER VALVES Part Number Preliminary 6/11...

  • Page 45: I Model Dual Evaporator

    I Model Dual Evaporator DISTRIBUTION TUBE THICKNESS EVAPORATOR PROBE PUMP SPLASH SHIELD DRIER SWITCH LIQUID LINE WATER SOLENOID TROUGH VALVE SHIELD RECEIVER DUMP WATER VALVE WATER DAMPER TROUGH PUMP WATER LEVEL Need new graphic with 3 DISPLAY PROBE access ports up front LEFT SIDE PUMP TXV SENSING...

  • Page 46: I Model Quad Evaporator Models

    I Model Quad Evaporator Models Part Number Preliminary 6/11...

  • Page 47: Icvd0695/Icvd0895/Icvd1095/Icvd1195/ Icvd1295/Icvd1495

    ICVD0695/ICVD0895/ICVD1095/ICVD1195/ ICVD1295/ICVD1495 HEAD PRESSURE CONDENSER CONTROL VALVE FAN MOTOR ACCESS VALVE ELECTRICAL COMPARTMENT CONDENSER LPCO COMPRESSOR CHECK VALVE LIQUID LINE AND SUCTION LINE CONNECTION SUCTION ACCESS VALVE POINTS ACCUMULATOR Part Number Preliminary 6/11...

  • Page 48: Icvd1895/Icvd2195

    ICVD1895/ICVD2195 ACCESS VALVES CONDENSER FAN MOTOR (ICVD3095 HAS 2 FANS) ELECTRICAL CONDENSER COMP. HEAD PRESSURE CONTROL VALVE LIQUID LINE SUCTION LINE CONNECTION POINTS CHECK VALVE Not Used On Scroll Compressors SUCTION ACCESS VALVE ACCUMULATOR COMPRESSOR Part Number Preliminary 6/11...

  • Page 49: Maintenance

    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 Preliminary 6/11...
  • Page 50 ! Caution Use only Manitowoc approved Ice Machine Cleaner Sanitizer 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.

  • Page 51: 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 52: Cleaning / Sanitizing Procedure

    Cleaning / Sanitizing Procedure ! Caution Use only Manitowoc approved Ice Machine Cleaner Sanitizer 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.
  • Page 53 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 54 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.

  • Page 55: Sanitizing Procedure

    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).
  • Page 56 Step 11 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: •...
  • Page 57 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...

  • Page 58: Parts Removal For Cleaning/Sanitizing

    PARTS REMOVAL FOR CLEANING/SANITIZING Single Evaporator Ice Machines. O f f O n / O f f M o d e A. Remove the water curtain • Gently flex the curtain in the center and remove it from the right side. •...
  • Page 59 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 60 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 61 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 62 Dual Evaporator Ice Machines A.Remove splash shields • Grasp the top center of splash shields. • Lift up and then out. B. Remove the water trough shield • Grasp the water trough shield in the center and the left end. •...
  • Page 63 C. 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 64 Quad Evaporator Ice Machines A. Remove front evaporator shield. • Remove four quarter turn connectors • Remove splash shield B. Remove Splash Shields. • Grasp the top center of splash shields. • Lift up and then out. NOTE: Each evaporator has a splash shield that must be removed - total of four splash shields.
  • Page 65 C. 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 66 Ice Thickness Probe & Water Level Probe Clean 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...
  • Page 67 Water Inlet Valve The water inlet valve normally does not require removal for cleaning. Refer to “Water System Checklist” page 163, 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.
  • Page 68 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.
  • Page 69 During cleaning, do not stretch or damage the NOTE: spring. 1. Remove the tubing from the dump valve by twisting the clamps off. 2. Remove the valve body, twist off. COIL SPRING PLUNGER NYLON GASKET DIAPHRAM MOUNTING BRACKET VALVE BODY Dump Valve Disassembly Part Number Preliminary 6/11...

  • Page 70: 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. ! Caution If water is allowed to remain in the ice machine in freezing temperatures, severe damage to some components could result.

  • Page 71: Water-Cooled Ice Machines

    WATER-COOLED ICE MACHINES 1. Perform steps 1-6 under “Self-Contained Air- Cooled Ice Machines.” 2. Disconnect the incoming water and drain line from the water-cooled condenser. 3. Energize the ice machine in the freeze cycle. The increasing refrigerant pressure will open the water regulating valve.
  • Page 72 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 73: Operation

    Power Button Cleaning Button Manitowoc LCD Display Navigation Arrows Menu Checkmark Button Operation Control Panel Features The control panel offers a series of pressure sensitive buttons and a four-line interactive display panel. BUTTONS Powers the ice machine when in the Power Button: On/Off Mode.

  • Page 74: Display Panel

    Moves the display from the Home Menu Button: 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. The Left arrow moves the Left and Right Arrows: display to the previous screen, allowing the user to...

  • Page 75: Menu Navigation Overview

    Menu Navigation Overview Menu Navigation Overview AuCS On/Off Clean Timer Button Button Initiated Press Left Arrow From Main Menu Home Screen AuCS Clean Clean Function Function When When Alert Message Present Present Menu Alerts Messages Button Menu Menu Main Menu Function (Optional) Password Entry Energy...

  • Page 76: Display Panel Navigation

    Display Panel Navigation [ L a n g u a g e > ] ▼ T i m e & D a t e > T i m e C o n f i g > U n i t s >...
  • Page 77 A cursor (underline) is used within lines Cursor: where actual 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.

  • Page 78: Alerts And Messages

    Alerts and Messages When messages and alerts exist, they will be highlighted and can be selected with the Checkmark. Alerts displayed will have priority over messages. O f f O n / O f f M o d e For example, if alerts are appearing in the fourth line of the display: 1.

  • Page 79: Main Menu

    Machine Info Set-Up Energy Saver Factory Defaults Service Exit Main Menu 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. Part Number Preliminary 6/11...

  • Page 80: Machine Info Menu

    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, installation date, date of manufacture and software version.

  • Page 81: Password Entry

    Password Entry A password is not required, although a password can be entered to prevent unauthorized control setting modification. To Enter a password 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.

  • Page 82: Reset Password To Factory Defaults

    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 factory defaults use the following procedure. 1. Press the Menu button. 2. From the Main menu, use the Down arrow to highlight Fact Deflts 3.

  • Page 83: Set-Up Menu

    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. LANGUAGE 1. From the Set-Up menu, use the Down arrow to highlight Language.
  • Page 84 5. 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 be underlined. 6. Using the Up or Down arrow, adjust the month, if necessary.

  • Page 85: Time Configuration

    TIME CONFIGURATION 1. From the Set-Up menu, use the Down arrow to highlight Time Config. 2. Press the Checkmark. On this screen, you can choose whether the date will be displayed as Mo/Day/Yr or Day/Mo/Yr by highlighting your choice and pressing the Checkmark. Selecting one will deselect the other.

  • Page 86: Ice Clarity

    ICE CLARITY In areas with poor potable water quality, the ice machine makes cloudy 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.

  • Page 87: Password On

    PASSWORD ON A password can be added to prevent unauthorized changes to ice machine settings. 1. From the Set-Up menu, use the Down arrow to highlight Password On. 2. Enter the password and press the Checkmark. 3. Press the Left arrow to return to previous screens and to the Set-Up menu.

  • Page 88: Iaucs Runtime

    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.

  • Page 89: Water Filter

    WATER FILTER The ice machine has a feature that displays 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.

  • Page 90: Usb Setup

    USB SETUP Refer to “Upgrading Firmware with a Flash Drive” and “Exporting Data to a Flash Drive” for more information on this setting. 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.

  • Page 91: Energy Saver Menu

    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 and view usage statistics from this menu. Press the Left arrow to return to previous screens.

  • Page 92: Ice Program

    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. Important Setting an ice program will take the ice machine out of the On/Off Mode and the Power button will be disabled.

  • Page 93: Service Menu

    Service Menu 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 and overview of the service menu. The following pages list the navigation options available by drilling into the menus with the down arrow.

  • Page 94: Data History

    DATA HISTORY Press the Checkmark with Data History highlighted to 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: •...

  • Page 95: Real Time Data

    REAL TIME DATA Press the Checkmark with Real Time Data highlighted to get readings on Time & Temp, Inputs and Outputs (be sure to use the Down arrow to reveal all the available information). For each of the dates, use the Checkmark to view: Time and Temperature •...
  • Page 96 Outputs • Status Off/On • 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 •...

  • Page 97: Diagnostics

    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 • T1 Thermistor Temperature • T2 Thermistor Temperature •...

  • Page 98: Manual Harvest

    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 board. The data can copied from the defective control board, or entered manually.

  • Page 99: Event Log Menu

    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.

  • Page 100: Event Log

    EVENT LOG Refer to the following table for Event Code descriptions. Code Description Long Freeze Cycle Long Harvest Cycle Input Power Loss High Condenser Temperature High Pressure Control Opened Spare Starving TXV or Low On Charge TXV Fault #1 Evaporator Flooding #2 Evaporator Flooding Refrigeration Fault Curtain Switch Fault - Open more than 12 hours...
  • Page 101 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 102: Upgrading Firmware With A Flash Drive Or Transferring Setup Data To Multiple Machines

    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. 1. Drag and drop the file from your email onto a flash drive or refer to Exporting data to a flash drive to transfer settings to multiple machines.
  • Page 103 USB Connector Bin Switches Thermostat Display Light Micro Light Thermistors Clean Light Harvest Light SL-1 Light SL-2 Light Dump Valve Transformer Left Bin Switch Light Right Bin Switch Light Water Level Probe Light Display Ice Thickness Probe Light RS485 RT Harvest Bin LED Compressor Battery...

  • Page 104: 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 105 USB Connector Bin Switches Thermostat Display Light Micro Light Thermistors Clean Light Harvest Light SL-1 Light SL-2 Light Dump Valve Transformer Left Bin Switch Light Right Bin Switch Light Water Level Probe Light Display Ice Thickness Probe Light RS485 RT Harvest Bin LED Compressor Battery...

  • Page 106: Safe Operation Mode

    SAFE OPERATION MODE Allows the ice machine to operate up to 72 hours if the ice thickness probe and/or water level probe sensors fail. • 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 107: Operational Checks

    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 108: Ice Thickness Check

    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 is in place when performing this check.

  • Page 109: Sequence Of Operation

    Sequence of Operation SELF CONTAINED AIR OR WATER COOLED Single & Quad Evaporator Models The power button must be depressed and the NOTE: 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.
  • Page 110 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 and water flows over the evaporator.
  • Page 111 Harvest Sequence 5. Water Purge The air pump(s) (when used) and the harvest valve(s) open at the beginning of the water purge to divert hot refrigerant gas into the evaporator. The water pump(s) continues to run, and the water dump valve energizes to purge the water in the water trough.
  • Page 112 Automatic Shut-Off 7. Automatic Shut-Off When the storage bin is full at the end of a harvest sequence, the sheet of cubes fails to clear the water curtain/ice damper and will hold it open. After the water curtain/ice damper is held open for 30 seconds, the ice machine shuts off.
  • Page 113 Single Evaporator Self Contained Air & Water-Cooled Models Energized Parts Chart Ice Making Water Water Length Water Harvest Contactor Condenser Sequence of Inlet Dump Compressor Pump Valve(s) Pump(s)* Coil Fan Motor of Time Valve Valve Operation Start-Up 45 Seconds 1. Water Purge 2.
  • Page 114 Single Evaporator Self Contained Air & Water-Cooled Models Energized Parts Chart (Continued) Ice Making Water Water Length Water Harvest Contactor Condenser Sequence of Inlet Dump Compressor Pump Valve(s) Pump(s)* Coil Fan Motor of Time Valve Valve Operation Harvest Sequence Factory May Cycle Set at On/Off...

  • Page 115: Energized Parts Chart

    Quad Evaporator Self Contained Water-Cooled Model Energized Parts Chart Ice Making Water Length Water Harvest Water Contactor Sequence of Dump Compressor Pumps Valves Pumps Inlet Valve Coil of Time Valves Operation Start-Up Initial Start-Up is 45 Seconds 1. Water Purge 30 Seconds thereafter 2.
  • Page 116 Quad Evaporator Self Contained Water-Cooled Model Energized Parts Chart (Continued) Ice Making Water Length Water Harvest Water Contactor Sequence of Dump Compressor Pumps Valves Pumps Inlet Valve Coil of Time Valves Operation Harvest Sequence Factory Set at from 30-45 30 Seconds 5.

  • Page 117: Remote Condenser

    REMOTE CONDENSER Single Evaporator Models The power button must be depressed and the NOTE: 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 for 45 seconds, to completely purge the ice machine of old water.
  • Page 118 Freeze Sequence 3. Prechill The compressor is on for 30 seconds (60 seconds initial cycle) prior to water flow, to prechill the evaporator. The water fill valve is also energized and will remain on until water completes the water level probe circuit.
  • Page 119 Harvest Sequence 5. Water Purge The air pump (when used) the harvest valve(s) and harvest pressure regulating valve (HPR) open at the beginning of the water purge to divert hot refrigerant gas to the evaporator. The water pump continues to run, and the water dump valve energizes to purge the water in the water trough.
  • Page 120 Automatic Shut-Off 7. Automatic Shut-Off When the storage bin is full at the end of a harvest sequence, the sheet of cubes fails to clear the water curtain/ice damper and will hold it open. After the water curtain/ice damper is held open for 30 seconds, the ice machine shuts off.
  • Page 121 Single Evaporator Remote Air-Cooled Condenser Models Energized Parts Chart Harvest Harvest Ice Making Contactor Valve Valve Water Water Length Water Pump Coil Condenser Sequence of (Left) (Right) Inlet Dump Compressor Pump (When Liquid Line Fan Motor of Time (When Valve Valve Operation Used)
  • Page 122 Single Evaporator Remote Air-Cooled Condenser Models Energized Parts Chart (Continued) Harvest Harvest Ice Making Contactor Valve Valve Water Water Length Water Pump Coil Condenser Sequence of (Left) (Right) Inlet Dump Compressor Pump (When Liquid Line Fan Motor of Time (When Valve Valve Operation...

  • Page 123: Quietqube® Models

    QUIETQUBE® MODELS The power button must be depressed and the NOTE: 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 Water Purge Before the compressor starts, the water pump and water dump solenoid are energized to purge the ice machine of old water.

  • Page 124: Freeze Sequence

    FREEZE SEQUENCE Pre chill The water inlet valve energizes and the compressor lowers the temperature of the evaporator(s) before the water pump(s) is energized. The water fill valve will remain energized until water completes the water level probe circuit. Freeze The water pump(s) energizes and water flows over the evaporator.

  • Page 125: Harvest Sequence

    HARVEST SEQUENCE Water Purge The air pump(s) (when used) 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...

  • Page 126: Automatic Shut-Off

    AUTOMATIC SHUT-OFF 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 contacts the bin level thermostat probe (when used).
  • Page 127 Single & Twin Evaporator QuietQube® Models Energized Parts Chart Contactor Ice Making Refrigeration Length of Water Liquid Line Water Harvest Water Inlet Sequence of Compressor & Air Pumps Dump Solenoid Pump Valve (s) Valve Time Condenser Fan Valve Valve Operation Motor Start-Up - Initial or After Auto Shut Off...
  • Page 128 Single & Twin Evaporator QuietQube® Models Energized Parts Chart (Continued) Contactor Ice Making Refrigeration Length of Water Liquid Line Water Harvest Water Inlet Sequence of Compressor & Air Pumps Dump Solenoid Pump Valve (s) Valve Time Condenser Fan Valve Valve Operation Motor Harvest Sequence...
  • Page 129 Quad Evaporator QuietQube® Energized Parts Chart Ice Making Refrigeration Length of Water Liquid Line Water Harvest Water Inlet Compressor & Sequence of Air Pumps Dump Solenoid Pump Valve (s) Valve Condenser Fan Time Valve Valve Operation Motor Start-Up - Initial or After Auto Shut Off 45 Seconds 1.
  • Page 130 Quad Evaporator QuietQube® Energized Parts Chart (Continued) Ice Making Refrigeration Length of Water Liquid Line Water Harvest Water Inlet Compressor & Sequence of Air Pumps Dump Solenoid Pump Valve (s) Valve Condenser Fan Time Valve Valve Operation Motor Harvest Sequence 45 Seconds 5.

  • Page 131: Safety Timers

    SAFETY TIMERS The control board has the following non-adjustable safety 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” on page 98 •...
  • Page 132 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 133: Troubleshooting

    Troubleshooting Safety Limits 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.

  • Page 134: Analyzing Why A Safety Limit Stopped The Ice Machine

    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.

  • Page 135: Safety Limit #1

    SAFETY LIMIT #1 Freeze time exceeds 60 minutes for 6 consecutive freeze cycles. Possible cause list Water System • Dirty/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.) •...

  • Page 136: Safety Limit #2

    SAFETY LIMIT #2 Single Evaporator Models - Harvest time exceeds 3.5 minutes for 500 consecutive harvest cycles Multiple Evaporator Models - Harvest time exceeds 7 minutes for 500 consecutive harvest cycles Possible Cause Checklist Improper Installation • Refer to “Installation/Visual Inspection Checklist” page 162 Water System •...
  • Page 137 This Page Intentionally Left Blank Part Number Preliminary 6/11...
  • Page 138 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 139: 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 140 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.

  • Page 141: Symptom #1 Ice Machine Will Not Run

    SYMPTOM #1 ICE MACHINE WILL NOT RUN ICE MACHINE STOPS RUNNING OR HAS A HISTORY OF SHUTTING DOWN Are there any lights on or flashing on the control board? Is there an Alert or Refer to Alert/Error Log Line voltage at wires Error Logged? 55 &...
  • Page 142 Refer to display & control Display light Line voltage at wires board diagnostics flashing 55 & 56 on 9 pin control heartbeat? board connector? Install the water curtain/damper. Supply power to the ice machine Control board fuse is good? Bin switch light on? All water curtains or (Multi evap all lights on?) dampers in place?
  • Page 143 Is magnet on the Replace the water water curtain/damper curtain/damper. Press power button to start ice making, does safety limit light flash? Refer to bin switch diagnostics. Ice machine starts? Refer to Safety Limit #1 long freeze cycle Which light flashes? Refer to display &...
  • Page 144 Diagnosing an Ice Machine That Will Not Run Warning High (line) voltage is applied to the control board (terminals #55 and #56) at all times. Removing control board fuse or pressing the power button will not remove the power supplied to the control board. 1.

  • Page 145: Diagnosing A Condensing Unit That Will Not Run

    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 ice machine condensing unit and the fuse/circuit breaker is closed.

  • Page 146: Compressor Electrical Diagnostics

    COMPRESSOR ELECTRICAL DIAGNOSTICS The compressor does not start or will trip repeatedly on overload. Check Resistance (Ohm) Values Compressor windings can have very low ohm NOTE: 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 147 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 148: Symptom #2 - Self-Contained Air, Water & Remote Condenser Models

    SYMPTOM #2 - SELF-CONTAINED AIR, WATER & REMOTE CONDENSER MODELS Symptom #2 Low Production, Long Freeze Ice Machine has a Long Freeze Cycle. Ice Formation is Thick Thin on Top or Bottom of Evaporator Low Production How to Use the Freeze Cycle Refrigeration System Operational Analysis Table GENERAL These tables must be used with charts, checklists and...
  • Page 149 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”...

  • Page 150: Symptom #2 - Freeze Cycle Refrigeration System Operational Analysis Tables

    SYMPTOM #2 - FREEZE CYCLE REFRIGERATION SYSTEM OPERATIONAL ANALYSIS TABLES SINGLE EXPANSION VALVE SELF CONTAINED AIR, WATER & REMOTE CONDENSER Operational Analysis Air-Temperature Entering Condenser_____________ Ice Production Water Temperature Entering Ice Machine_________ 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 10% of charted capacity.
  • Page 151 SINGLE EXPANSION VALVE SELF CONTAINED AIR, WATER & REMOTE CONDENSER Operational Analysis If suction pressure is High or Low refer to freeze cycle high or low suction pressure problem checklist Freeze Cycle page 169 to eliminate problems and/or components not listed on this table before proceeding. Suction Pressure Suction pressure is Suction pressure is...
  • Page 152 SINGLE EXPANSION VALVE SELF CONTAINED AIR, WATER & REMOTE CONDENSER Operational Analysis Wait 5 minutes into the The harvest valve inlet is The harvest valve inlet The harvest valve inlet The harvest valve inlet is Cool enough to hold freeze cycle. is Cool enough to hold is Cool enough to hold -and-...
  • Page 153 DUAL EXPANSION VALVE SELF CONTAINED AIR, WATER & REMOTE CONDENSER Operational Analysis Air-Temperature Entering Condenser_____________ Ice Production Water Temperature Entering Ice Machine_________ 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 10% of charted capacity.
  • Page 154 DUAL EXPANSION VALVE SELF CONTAINED AIR, WATER & REMOTE CONDENSER Operational Analysis If suction pressure is High or Low refer to freeze cycle high or low suction pressure problem checklist Freeze Cycle page 169 to eliminate problems and/or components not listed on this table before proceeding. Suction Pressure Suction pressure is High Suction pressure is Low...
  • Page 155 DUAL EXPANSION VALVE SELF CONTAINED AIR, WATER & REMOTE CONDENSER Operational Analysis Discharge Line Temperature Record freeze cycle discharge line temperature at Discharge line temp. Discharge line temp. Discharge line temp. Discharge line temp. the end of the freeze cycle 150°F (65°C) 150°F (65°C) less than...
  • Page 156 FOUR EXPANSION VALVE SELF CONTAINED WATER-COOLED S Operational Analysis Ambient Air-Temperature_____________ Ice Production Water Temperature Entering Ice Machine_________ 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 10% of charted capacity.
  • Page 157 FOUR EXPANSION VALVE SELF CONTAINED WATER-COOLED S Operational Analysis Freeze Cycle Discharge Pressure If discharge pressure is High or Low refer to freeze cycle high or low discharge pressure problem checklist _____ ______ _____ page 166 and eliminate problems and/or components not listed on this table before proceeding. 1 minute Middle If suction pressure is High or Low refer to freeze cycle high or low suction pressure problem checklist...
  • Page 158 FOUR EXPANSION VALVE SELF CONTAINED WATER-COOLED S Operational Analysis All harvest valve All harvest valve Harvest Valve Temperature One harvest valve All harvest valve inlets are Cool All harvest valve inlets are Cool Wait 5 minutes into the freeze inlet is Hot inlets are Cool enough to hold inlets are Cool...
  • Page 159 The following are 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.
  • Page 160 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 161 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 10% of the chart are considered normal.
  • Page 162 Installation/Visual Inspection Checklist Inadequate Clearances • Check all clearances on sides, back and top. 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 •...
  • Page 163 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 164 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.
  • Page 165 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.
  • Page 166 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 307) for ice machine being checked. Use the operating conditions determined in step 1 to find the published normal discharge pressures.
  • Page 167 FREEZE CYCLE DISCHARGE PRESSURE HIGH CHECKLIST Improper Installation • Refer to “Installation/Visual Inspection Checklist” (page 162) Air Condenser • Dirty condenser filter • Dirty condenser fins • High inlet air temperature • Condenser discharge air recirculation • Defective fan cycling control (page 273) •...
  • Page 168 FREEZE CYCLE DISCHARGE PRESSURE LOW CHECKLIST Improper Installation • Refer to “Installation/Visual Inspection Checklist” (page 162) Air Cooled Condensers • Defective head pressure control valve, won’t bypass (page 273) • Defective fan cycle control, stuck closed (page 273) Water Cooled Condensers •...
  • Page 169 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 170 Suction Pressure High Checklist Improper Installation • Refer to “Installation/Visual Inspection Checklist” page 162 Discharge Pressure • Discharge pressure is too high and is affecting suction pressure – refer to “Freeze Cycle Discharge Pressure High Checklist” (page 167) Improper Refrigerant Charge •...
  • Page 171 SUCTION PRESSURE LOW CHECKLIST Improper Installation • Refer to “Installation/Visual Inspection Checklist” (page 162) Discharge Pressure • Discharge pressure is too low and is affecting low side – refer to “Freeze Cycle Discharge Pressure High Checklist” (page 167) Improper Refrigerant Charge •...
  • Page 172 Self-contained & Remote Condenser Single Expansion Valve Machines - Comparing Evaporator Inlet and Outlet Temperatures This procedure will not work on dual or Quad NOTE: expansion valve ice machines. The temperatures of the suction lines entering and leaving the evaporator alone cannot diagnose an ice machine.
  • Page 173 Self-contained Multiple Expansion Valve Ice Machines - Comparing Evaporator Outlet Temperatures Comparing the temperatures of the suction lines leaving the evaporator alone cannot diagnose an ice machine. However, comparing these temperatures during the freeze cycle, along with using Manitowoc’s Freeze Cycle Refrigeration System Operational Analysis Table, can help diagnose an ice machine malfunction.
  • Page 174 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.
  • Page 175 Findings Comments The inlet of the harvest This is normal as the discharge valve is cool enough to line should always be too hot to touch and the touch and the harvest valve compressor discharge inlet, although too hot to touch line is hot.
  • Page 176 Discharge Line Temperature Analysis GENERAL Knowing if the discharge line temperature is increasing, decreasing or remaining constant can be an important diagnostic tool. Compressor discharge line temperature on a normally operating ice machine steadily increases throughout the freeze cycle. Ambient air temperatures affect the discharge line temperature.
  • Page 177 Water Regulating Valve Problem (Freeze Cycle) Valve not maintaining discharge pressure. • Valve incorrectly set, dirty or defective. Adjust valve to correct discharge pressure for your model (refer to cycle times/24 hour productions charts), clean or replace valve. Discharge pressure extremely high; Liquid line entering receiver feels hot.
  • Page 178 Final Analysis - Self-contained Air, Water & Remote Condenser Models 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.
  • Page 179 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. On Quad evaporator machines, the service technician is able to tell which TXV is flooding by comparing the evaporator outlets.

  • Page 180: Symptom #3 Harvest Problems Self-Contained Air, Water & Remote Con- Denser Models

    SYMPTOM #3 HARVEST PROBLEMS SELF-CONTAINED AIR, WATER & REMOTE CONDENSER MODELS Melted Out Ice Cube Normal Ice Cube Definition of a harvest problem; At the end of a 3.5 minute harvest cycle the slab of ice is still contacting the evaporator. The slab of ice may or may not be removable by hand.

  • Page 181: Symptom #3 Self-Contained Air Or Water-Cooled

    SYMPTOM #3 SELF-CONTAINED AIR OR WATER-COOLED Ice Machine Will Not Harvest - Freeze Cycle is Normal and Ice Cubes are Not Melted After Harvest Discharge line temperature is normal Refer to Low production, at the end of the freeze cycle? Symptom #2 Normal fill pattern, long Freeze Cycle...
  • Page 182 Fan cycling Fan cycling Self Contained control operates correctly control opens below setpoint Air-cooled Condenser? in freeze cycle? in harvest cycle? Replace Fan Are you sure Discharge line Cycling Control temperature is normal? Repeat this flowchart & verify all data Self Contained Maintains correct Stops water flow 100%...

  • Page 183: Symptom #3 - Remote Condenser

    SYMPTOM #3 - REMOTE CONDENSER Traditional Remote Ice Machine - Long Harvest/Low Production/Intermittent Safety Limit 2 Fails at night or in low Normal ice fill, long harvest cycle, ambient - Operates possible SL #2, back of cubes are normally above 70F/21C not melted at the end of harvest cycle Liquid Line Wet condenser...
  • Page 184 Is head pressure high & Is harvest valve energized? suction pressure low in harvest? Replace Harvest Valve Refer to Sequence of Operation & Wiring Diagrams Is head pressure low & suction pressure low in harvest? Refer to Harvest Pressure Regulating Valve Diagnostics Refer to Symptom #4 - Will Not Harvest, Freeze...

  • Page 185: Symptom #4 Self-Contained Air, Water-Cooled Or Remote

    SYMPTOM #4 SELF-CONTAINED AIR, WATER-COOLED OR REMOTE Ice Machine Will Not Harvest - Freeze Cycle is Normal and Ice Cubes are Melted After Harvest Are back of the cubes Is Ice Level Ice melted at end of Machine level? Machine harvest cycle? Refer to Is water flowing over the...
  • Page 186 Is the evaporator dirty? (Dry evaporator first then check) Discharge line temperature is normal at the end of the freeze cycle? S850/S1000 (A/W) = >140F/60C All other S Models = >150F/65C Refer to Symptom #2 Refer to Heavily Scaled Refer to Manual Freeze Cycle Operational Cleaning Procedure Cleaning Procedure...
  • Page 187 This Page Intentionally Left Blank Part Number Preliminary 6/11...
  • Page 188 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 189: Symptom #2 - Quietqube® Remote Condensing Unit Models

    Symptom #2 - QuietQube® Remote Condensing Unit Models SYMPTOM #2 LOW PRODUCTION, LONG FREEZE Ice Machine has a Long Freeze Cycle. Ice Formation is Thick Thin on Top or Bottom of Evaporator Low Production How to Use the Freeze Cycle Refrigeration System Operational Analysis Table GENERAL These tables must be used with charts, checklists and...
  • Page 190 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”...

  • Page 191: Quietqube® Models- Freeze Cycle Refrigeration System Operational Analysis Tables

    QUIETQUBE® MODELS- Freeze Cycle Refrigeration System Operational Analysis Tables I Model QuietQube® Single Expansion Valve Operational Analysis Published 24 hour ice production________________ Calculated (actual) ice production_______________ Ice Production NOTE: The ice machine is operating properly if the ice fill patterns is normal and ice production is within 10% of charted capacity.
  • Page 192 I Model QuietQube® Single Expansion Valve Operational Analysis Safety Limits Refer to “Analyzing Safety Stops on safety limit: Stops on safety limit: Stops on safety limit: Stops on safety limit: Limits” page 134 to eliminate 1 or 2 1 or 2 1 or 2 all non-refrigeration problems.
  • Page 193 I Model QuietQube® Single Expansion Valve Operational Analysis Suction line temp. at Suction line temp. at Suction line temp. at Suction line temp. at Suction Line Temperature the suction shut-off the suction shut-off the suction shut-off the suction shut-off Attach a temperature probe valve is greater than valve is greater than valve is less than...

  • Page 194: Eration System Operational Analysis Tables

    QUIETQUBE® MODELS- Freeze Cycle Refrigeration System Operational Analysis Tables Twin Expansion Valve – I1470C/I1870C/I2170C Models Operational Analysis Published 24-hour ice production __________ Calculated (actual) 24-hour ice production __________ 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.
  • Page 195 Twin Expansion Valve – I1470C/I1870C/I2170C Models Operational Analysis Safety Limits Refer to “Analyzing Stops on Stops on Stops on Stops on Safety Limits” page 134 to safety limit: safety limit: safety limit: safety limit: 1 or 2 1 or 2 1 or 2 eliminate all non-refrigeration problems.
  • Page 196 Twin Expansion Valve – I1470C/I1870C/I2170C Models Operational Analysis No audible No audible No audible Audible refrigerant flow refrigerant flow through refrigerant flow through refrigerant flow through through left or right Harvest Valve left or right valve in left or right valve in left or right valve in valve in Freeze cycle Freeze cycle...

  • Page 197: Eration System Operational Analysis Tables

    QUIETQUBE® MODELS- Freeze Cycle Refrigeration System Operational Analysis Tables Quad Expansion Valve – I3070C Operational Analysis Air-Temperature Entering Condenser_____________ Ice Production Water Temperature Entering Ice Machine_________ 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 10% of charted capacity.
  • Page 198 Quad Expansion Valve – I3070C Operational Analysis Safety Limits Refer to “Analyzing Safety Stops on Safety Limit: Stops on Safety Limit: Stops on Safety Limit: Stops on Safety Limit: Limits” page 134 to eliminate all 1 or 2 non refrigeration problems Freeze Cycle Discharge Pressure If discharge pressure is High or Low refer to freeze cycle high or low discharge pressure problem...
  • Page 199 Quad Expansion Valve – I3070C Operational Analysis Evaporator outlet Evaporator Outlet temperatures are Temperature Comparison Evaporator outlet Evaporator outlet Evaporator outlet NOT within Attach and insulate temperature temperatures are temperatures are temperatures are 10°F of each other probes between evaporator within 10°F of each NOT within within 10°F of each...

  • Page 200: Quietqube® Models - Freeze Cycle Refrigeration System Operational Analysis Table Procedures

    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.
  • Page 201 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 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 202 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 10% of the chart are considered normal.
  • Page 203 QuietQube® Models - Installation/Visual Inspection Checklist Inadequate Clearances • Check all clearances on sides, back and top. Ice machine is not level • Level the ice machine Condenser is dirty • Clean the condenser Water filtration is plugged (if used) •...
  • Page 204 QuietQube® 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).
  • Page 205 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.
  • Page 206 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.
  • Page 207 IB MODELS - ICE FORMATION PATTERN Tubing routing for Ice Beverage evaporators is different. The evaporator outlet is moved lower on the evaporator. • IB600 and IB800 evaporators outlets exit roughly 1/2 way down the evaporator. Extremely Thin at the Evaporator Outlet will first be visible near the middle of the evaporator •...
  • Page 208 QuietQube® Models - 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 307) for ice machine being checked. Use the operating conditions determined in step 1 to find the published normal discharge pressures.
  • Page 209 QUIETQUBE® MODELS - FREEZE CYCLE DISCHARGE PRESSURE HIGH CHECKLIST Improper Installation • Refer to “Installation/Visual Inspection Checklist” (page 162) Air Condenser • Dirty condenser filter • Dirty condenser fins • High inlet air temperature • Condenser discharge air recirculation • Defective fan cycling control (page 273) •...
  • Page 210 QUIETQUBE® MODELS - FREEZE CYCLE DISCHARGE PRESSURE LOW CHECKLIST Improper Installation • Refer to “Installation/Visual Inspection Checklist” (page 162) Air Cooled Condensers • Defective head pressure control valve, won’t bypass (page 273) • Defective fan cycle control, stuck closed (page 273) Water Cooled Condensers •...
  • Page 211 QuietQube® Models - 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...
  • Page 212 QuietQube® Models - Suction Pressure High Checklist Improper Installation • Refer to “Installation/Visual Inspection Checklist” page 162 Discharge Pressure • Discharge pressure is too high and is affecting suction pressure – refer to “Freeze Cycle Discharge Pressure High Checklist” (page 167) Improper Refrigerant Charge •...
  • Page 213 QUIETQUBE® MODELS - SUCTION PRESSURE LOW CHECKLIST Improper Installation • Refer to “Installation/Visual Inspection Checklist” (page 162) Discharge Pressure • Discharge pressure is too low and is affecting low side – refer to “Freeze Cycle Discharge Pressure High Checklist” (page 167) Improper Refrigerant Charge •...
  • Page 214 QuietQube® 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.
  • Page 215 QuietQube® 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.
  • Page 216 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.
  • Page 217 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. On Quad evaporator machines, the service technician is able to tell which TXV is flooding by comparing the evaporator outlets.

  • Page 218: Symptom #3 Harvest Problems Qui- Etqube® Remote Condensing Unit Models

    SYMPTOM #3 HARVEST PROBLEMS QUIETQUBE® REMOTE CONDENSING UNIT MODELS Melted Out Ice Cube Normal Ice Cube Definition of a harvest problem; At the end of a 3.5 minute harvest cycle the slab of ice is still contacting the evaporator. The slab of ice may or may not be removable by hand.

  • Page 219: Symptom #3 Quietqube® Models With Icvd Condensing Units

    SYMPTOM #3 QUIETQUBE® MODELS WITH ICVD CONDENSING UNITS ICE MACHINE WILL NOT HARVEST - FREEZE CYCLE NORMAL, CUBES ARE NOT MELTED Ice Machine Will Not Harvest - Freeze Cycle Is Normal and Ice Cubes Are Not Melted Afte Ice Machine Will Not Harvest - Freeze Cycle Is Normal and Ice Cubes Are Not Melted After Harvest Refer to Sequence of Operation Is the Harvest Valve(s) &...
  • Page 220 Replace Is Head Pressure high & Harvest Suction Pressure low Valve in harvest? Is Head Pressure low & Not a refrigeration problem, No; Harvest PSI Normal Suction Pressure low in harvest? Clean & Inspect Evaporator Feel temperature of Receiver after 30 seconds Feels Warm to Hot into harvest cycle Cold...
  • Page 221 Cold Feel temperature of Liquid Line Backseat Liquid Line Shut Feels Hot at rear of Head Section Off Valve or Replace Cold Look for Restriction, Feel temperature of Liquid Line Feels Hot Correct Line Set Size, at Condensing Unit & Proper Insulation Cold Does the Condenser Fan Motor Refer to Fan Cycling...
  • Page 222 IMPORTANT Feel temperature of Discharge Line Headmaster is not Weigh charge as you are recovering, after 30 seconds into Harvest Cycle in 100% Bypass if incorrect evacuate & recharge, (refer to Harvest Headmaster Diagnostics) if correct then proceed Refrigerant Charge Refrigerant Charge is Correct is Incorrect...

  • Page 223: Symptom #4 Quietqube® Models With Icvd Condensing Units

    SYMPTOM #4 QUIETQUBE® MODELS WITH ICVD CONDENSING UNITS Ice Machine Will Not Harvest - Freeze Cycle Is Normal and Ice Cubes Are Melted After Harvest Back of cubes are melted Level Ice Is Ice Machine level? Machine at end of harvest cycle? Refer to Is water flow over the evaporator at Dump Valve...
  • Page 224 Is the evaporator dirty or damaged? (Dry evaporator first then check) Refer to Symptom #2 Refer to Cleaning Freeze Cycle Operational Procedures Analysis Table...
  • Page 225 This Page Intentionally Left Blank Part Number Preliminary 6/11...
  • Page 226 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 227: Component Check Procedures

    Component Check Procedures Electrical Components CONTROL BOARD, DISPLAY BOARD AND TOUCH 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 & #56 on the control board, the “Display”...
  • Page 228 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.
  • Page 229 Touch Pad Diagnostics Follow the control board diagnostics to the Status Passed display. 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.

  • Page 230: 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, contactor/compressor/fan motor - The fan cycle control must close to energize the fan motor.

  • Page 231: Upgrading Firmware With A Flash Drive Or Transferring Setup Data To Multiple Machines

    UPGRADING FIRMWARE WITH A FLASH DRIVE OR TRANSFERRING SETUP DATA TO MULTIPLE MACHINES Important Do not use a flash drive with a built-in software program, such as Sandisk brand. 1. Drag and drop the file from your email onto a flash drive or refer to Exporting data to a flash drive to transfer settings to multiple machines.
  • Page 232 USB Connector Bin Switches Thermostat Display Light Micro Light Thermistors Clean Light Harvest Light SL-1 Light SL-2 Light Dump Valve Transformer Left Bin Switch Light Right Bin Switch Light Water Level Probe Light Display Ice Thickness Probe Light RS485 RT Harvest Bin LED Compressor Battery...

  • Page 233: 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 234 USB Connector Bin Switches Thermostat Display Light Micro Light Thermistors Clean Light Harvest Light SL-1 Light SL-2 Light Dump Valve Transformer Left Bin Switch Light Right Bin Switch Light Water Level Probe Light Display Ice Thickness Probe Light RS485 RT Harvest Bin LED Compressor Battery...

  • Page 235: 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, 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.

  • Page 236: 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 237 Diagnostics SYMPTOMS Bin Switch Fails Open • The ice machine will not start an ice making cycle and the display indicates “Curtain Open”. • The 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.
  • Page 238 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.

  • Page 239: 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 measures conductivity for diagnostics, ice clarity and water miser options.
  • Page 240 Diagnostics SYMPTOMS • Water trough overfills • Water trough will not fill • Display indicates a “Long Freeze” alert and may or may not also indicate a safety limit 1 • Ice production is low WATER TROUGH OVERFILLING DURING THE FREEZE CYCLE Step 1 Press the power button and turn off the ice machine.
  • Page 241 Step 6 Wait until the pre-chill cycle begins, then jumper water level probe connection #2 & #3 at the control board. A. Water level light energizes and water flow stops - Repair wire or replace water level probe. B. Water level light does not energize and water continues to flow - Replace control board.
  • Page 242 WATER WILL NOT RUN INTO THE SUMP TROUGH DURING THE FREEZE CYCLE 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. Yes is displayed - Control board is receiving a sensing water signal.

  • Page 243: Ice Thickness Probe (Harvest Initiation)

    ICE THICKNESS PROBE (HARVEST INITIATION) 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. After 6 - 10 seconds of continuous contact, a harvest cycle is initiated.
  • Page 244 Ice Thickness Check The ice thickness probe is factory-set to maintain the ice bridge thickness at 1/8 in. (32 mm). Make sure the water curtain/splash shields NOTE: are in place when performing this check. It prevents water from splashing out of the water trough. 1.
  • Page 245 Diagnostics SYMPTOMS Premature harvest • Display indicates ITP Failure • Low ice production • Thin ice in bin • Freeze cycles are faster than published cycle times Will not harvest • Display indicates ITP Failure • Low ice production • Thick ice in bin •...
  • Page 246 ICE MACHINE DOES NOT CYCLE INTO HARVEST 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.

  • Page 247: 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 440 psig ±10 Automatic Reset (3103 kPa ±69 31 bar ±.69) (Must be below 300 psig (2068 kPa 20.68 bar) to reset.) SYMPTOM...

  • Page 248: Check Procedure

    CHECK PROCEDURE Symptom #1 Machine is off and the display indicates “Delay xx min, HPCO Active”. 1. Leave all wiring connectors attached and perform testing within the 10 minute time delay period 2. Check for line voltage at P9 connector on control board (Two wire connector adjacent to 9 pin connector).

  • Page 249: Machine Is Running & Display Indicates Hpc Fault

    Symptom #2 Machine is running and the display indicates “HPC Fault” and an alert triangle 1. Navigate to the event log on the Service menu. Scroll down to HPC Fault #5. Open the event and view when and how often HPCO Fault has occurred.

  • Page 250: Low Pressure Cutout (Lpco) Control

    LOW PRESSURE CUTOUT (LPCO) CONTROL FUNCTION Signals the control board to energize and de-energize the ice machine 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...

  • Page 251: 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 Cut-Out Model Cut-In (Close) (Open) I0300 / I0320 I0520 / I0450 / I0500 / I0600 I0850...

  • Page 252: 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 253 Four thermistors are located on the ice machine. They are labeled T1, T2, T3, T4 T1 - Air or Water cooled Models • Liquid line temperature sensor located at the outlet of the condenser. T1 - Remote Condenser or Remote Condensing Unit Models •...
  • Page 254 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 •...

  • Page 255: Harvest Assist Air Pump

    HARVEST ASSIST AIR PUMP FUNCTION The air pump breaks 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.

  • Page 256: Compressor Electrical Diagnostics

    COMPRESSOR ELECTRICAL DIAGNOSTICS The compressor does not start or will trip repeatedly on overload. Check Resistance (Ohm) Values Compressor windings can have very low ohm NOTE: 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 257 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 258: 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 259 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.
  • Page 260 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°C) and the start winding out of the circuit.
  • Page 261 PTCR Operation Check 1. Visually inspect the PTCR. Check for signs of physical damage. The PTCR case temperature may reach NOTE: 210°F (100°C) while the compressor is running. This is normal. Do not change a PTCR just because it is hot. 2.
  • Page 262 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 263: 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 264 Freeze Cycle Operation All 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.
  • Page 265 Harvest Cycle Operation QuietQube® Models 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.
  • Page 266 Diagnostics FREEZE CYCLE - REMOTE CONDENSER & 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 267 Harvest Cycle REMOTE CONDENSER The head pressure control cycles into full bypass due to the pressure drop when the harvest valve opens. Refrigerant flows from the compressor to the evaporator through the harvest valve and the head pressure valve is out of the circuit. QUIETQUBE ®...
  • Page 268 HARVEST CYCLE DIAGNOSTICS QUIETQUBE ® 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 100% closed (completely bypass the condenser) in the harvest cycle are:...
  • Page 269 Step 3 Details Grasp Here with Hands to Compare Temperatures 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. •...

  • Page 270: Harvest Pressure Regulating (Hpr) System

    HARVEST PRESSURE REGULATING (HPR) SYSTEM REMOTE CONDENSER ONLY GENERAL The harvest pressure regulating (HPR) system includes: • Harvest pressure regulating solenoid valve (HPR solenoid). This is an electrically operated valve which opens when energized, and closes when de-energized. INLET OUTLET FLOW HPR SOLENOID •...
  • Page 271 FREEZE CYCLE The HPR system is not used during the freeze cycle. The HPR solenoid is closed (de-energized), preventing refrigerant flow into the HPR valve. HARVEST CYCLE During the harvest cycle, the check valve in the discharge line prevents refrigerant in the remote condenser and receiver from back feeding into the evaporator and condensing to liquid.
  • Page 272 3. Freeze time normal? (Refer to Cycle Times/Refrigerant Pressures/24 Hour Ice Production Charts page 307) Shorter freeze cycles - Refer to head pressure control valve diagnostics page 273. Longer freeze cycles - Refer to water system checklist page 163, then refer to Refrigeration Diagnostic Procedures.

  • Page 273: Water Regulating Valve

    WATER REGULATING VALVE Water-Cooled Models Only FUNCTION The water regulating valve maintains the freeze cycle discharge pressure. CHECK PROCEDURE 1. Determine if the head pressure is high or low (refer to cycle time/24 hour ice production and operational pressure chart for the model you are servicing).

  • Page 274: Harvest Pressure Solenoid Valve

    HARVEST PRESSURE SOLENOID VALVE (I3300W Only) FUNCTION Transfers refrigerant from the high side to the low side during the harvest cycle. CHECK PROCEDURE 1. Reset the ice machine with the power button to over ride the 6 minute freeze lock. 2.

  • Page 275: Suction Accumulator Operation Quietqube® Remote Condensing Unit

    SUCTION ACCUMULATOR OPERATION QUIETQUBE® REMOTE CONDENSING UNIT 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.

  • Page 276: Refrigerant Recovery/Evacuation

    Refrigerant Recovery/Evacuation SELF-CONTAINED MODEL PROCEDURE Do not purge refrigerant to the atmosphere. Capture refrigerant using recovery equipment. Follow the manufacturer’s recommendations. Important Manitowoc 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 277 Self-Contained Recovery/Evacuation 1. Press the power button and cycle the ice machine off. 2. Install manifold gauges, scale and recovery unit or two-stage vacuum pump and open high and low side on manifold gauges. MANIFOLD SET OPEN OPEN LOW SIDE HIGH SIDE ACCESS ACCESS...
  • Page 278 Self-Contained Charging Procedures Important The charge is critical on all Manitowoc ice machines. Use a scale to ensure the proper charge is installed. 1. Be sure the ice machine is off. MANIFOLD SET CLOSED OPEN LOW SIDE HIGH SIDE ACCESS...
  • Page 279 2. Close the vacuum pump valve, the low side service valve, and the low side manifold gauge valve. 3. Open the high side manifold gauge valve. 4. Open the charging cylinder and add the proper refrigerant charge (shown on nameplate) through the discharge service valve.

  • Page 280: Remote Condenser Model Procedure

    Refrigerant Recovery/Evacuation 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 contaminated refrigerant. Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company.
  • Page 281 CONNECTIONS Important Recovery/evacuation remote system requires connections at four points for complete system evacuation. Make these connections: • Suction side of the compressor through the suction service valve. • Discharge side of the compressor through the discharge service valve. • Receiver outlet service valve, which evacuates the area between the check valve in the liquid line and the pump down solenoid.
  • Page 282 REMOTE CONDENSER RECOVERY/EVACUATION 1. Press the power button to stop the ice machine. 2. Install manifold gauges, 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.
  • Page 283 ACCESS REMOTE RECOVERY/EVACUATION CONNECTIONS Part Number Preliminary 6/11...
  • Page 284 Remote Charging Procedures 1. Close the vacuum pump valve and the low side manifold gauge valve. 2. Open the refrigerant cylinder and add the proper refrigerant charge (shown on nameplate) into the system high side (receiver outlet valve and discharge lines quick-connect fitting). 3.
  • Page 285 EVAPORATOR HEAT EXCHANGER EXPANSION VALVE SOLENOID VALVE LOW SIDE ACCESS VALVE STRAINER COMPRESSOR HARVEST PRESSURE HARVEST CHECK SOLENOID PRESSURE VALVE VALVE REGULATING VALVE HIGH SIDE LIQUID ACCESS VALVE LINE SOLENOID DISCHARGE LINE DRIER QUICK CONNECT SCHRAEDER FITTING REMOTE CONDENSER RECEIVER ACCESS VALVE CHECK VALVE HEAD PRESSURE...

  • Page 286: 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.

  • Page 287: Connections

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

  • Page 288: Refrigerant Charge

    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. CONNECTIONS MUST BE MADE AT THREE POINTS FOR COMPLETE REFRIGERANT RECOVERY ON ® QUIETQUBE MODELS.

  • Page 289: 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.

  • Page 290: 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 291 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 292: System Contamination Clean-Up

    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.
  • Page 293 Contamination Cleanup Chart Required Cleanup Symptoms/Findings Procedure No symptoms or suspicion of Normal contamination evacuation/recharging procedure Moisture/Air Contamination symptoms Refrigeration system open to atmosphere for longer than Mild contamination 15 minutes cleanup procedure Refrigeration test kit and/or acid oil test shows contamination Leak in water cooled condenser...

  • Page 294: 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. If the contamination is from moisture, use NOTE: heat lamps during evacuation. Position them at the compressor, condenser and evaporator prior to evacuation.
  • Page 295 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.
  • Page 296 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.

  • Page 297: Replacing Pressure Controls Without Removing Refrigerant Charge

    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 regulating valve (water cooled only) •...
  • Page 298 USING PINCH-OFF TOOL Part Number Preliminary 6/11...

  • Page 299: Liquid Line Filter-Driers

    LIQUID LINE FILTER-DRIERS The filter-driers used on Manitowoc ice machines are manufactured to Manitowoc specifications. The difference between a Manitowoc drier and an off- the-shelf drier is in filtration. A Manitowoc drier has dirt-retaining filtration, with fiberglass filters on both the inlet and outlet ends.

  • Page 300: Suction Filter

    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. Part Number Preliminary 6/11...

  • Page 301: Total System Refrigerant Charge

    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. Additional Maximum Model...
  • Page 302 QuietQube® ICVD Models Condensing Refrigerant Line Set Model Unit Charge Length I0680C I0680C 11 lbs. 0-100 ft. ICVD0695 IB0690C 5 kg. 0-30 M 11 lbs. 0-50 ft. 5 kg. 0-15 M I0870C ICVD0895 12 lbs. 51-100 ft. 5.44 kg 15-30 M 11 lbs.
  • Page 303 This Page Intentionally Left Blank Part Number Preliminary 6/11...
  • Page 304 Part Number Preliminary 6/11...
  • Page 305 This Page Intentionally Left Blank Part Number Preliminary 6/11...
  • Page 306 This Page Intentionally Left Blank Part Number Preliminary 6/11...

  • Page 307: Cycle Times/24-Hour Ice Production/Refrigerant Pressure Charts

    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 308: I0300 Series

    I0300 SERIES I0300A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 9.6-11.5 10.8-12.9 12.3-14.6 70/21 10.6-12.6...
  • Page 309 I0300W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 10.0-11.9 11.1-13.2 12.3-14.6 70/21 10.2-12.2 11.3-13.4 12.3-14.6...

  • Page 310: I0320 Series

    I0320 SERIES I0320A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 70/21 13.1-15.2 15.7-18.2 16.6-19.3 80/27...
  • Page 311 I0320W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Around Ice Harvest Water Temperature °F/°C Machine Time 50/10 70/21 90/32 °F/°C 13.3-15.5 15.4-17.9 16.6-19.3 70/21 13.8-16.1 16.0-18.6...

  • Page 312: I0450 Series

    I0450 SERIES I0450A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 10.2-11.9 11.1-12.9 12.1-14.1 70/21 11.4-13.3...
  • Page 313 I0450W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 9.9-11.6 11.1-12.9 12.1-14.1 70/21 10.2-11.9 11.6-13.5 12.5-14.5...

  • Page 314: I0500 Series

    I0500 SERIES I0500A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 11.0-12.6 12.9-14.8 14.3-16.3 70/21 12.4-14.3...
  • Page 315 I0500W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 10.5-12.1 13.2-15.1 15.3-17.5 70/21 11.9-13.6 13.7-15.7 15.5-17.7...
  • Page 316 I0500N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 -20/-29 to 12.3-14.1 12.7-14.7 13.7-15.8 70/21...

  • Page 317: I0520 Series

    I0520 SERIES I0520A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 8.8-10.3 10.2-11.9 11.7-13.7 70/21 9.9-11.6...
  • Page 318 I0520W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 9.1-10.7 10.9-12.7 11.7-13.7 70/21 9.4-11.0 11.2-13.1 12.1-14.1...

  • Page 319: I0600 Series

    I0600 SERIES I0600A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Harvest Entering Time Water Temperature °F/°C Condenser °F/°C 50/10.0 70/21.1 90/32.2 7.6-9.0 9.5-11.2 10.2-12.0 70/21 8.8-10.4...
  • Page 320 I0600W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Around Ice Harvest Water Temperature °F/°C Machine °F/°C Time 50/10 70/21 90/32 7.6-9.0 9.0-10.6 9.7-11.4 70/21 8.8-10.4 9.1-10.7...
  • Page 321 I0600N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 7.9-9.4 9.9-11.7 10.5-12.3 -20/-29 to 70/21 9.0-10.6 9.9-11.7...

  • Page 322: I0680C/Icvd0695

    I0680C/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 Entering Harvest Water Temperature °F/°C Condenser Time °F/°C...

  • Page 323: Ib0690C/Icvd695

    IB0690C/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 Harvest Water Temperature °F/°C Condenser Time °F/°C...

  • Page 324: I0850 Series

    I0850 SERIES I0850A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 9.0-10.4 9.8-11.2 10.5-12.1 70/21 10.1-11.6...
  • Page 325 I0850W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Around Ice Harvest Water Temperature °F/°C Machine °F/°C Time 50/10 70/21 90/32 8.4-9.7 9.5-10.9 10.7-12.3 70/21 8.7-10.1 9.7-11.1...
  • Page 326 I0850N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 -20/-29 to 9.5-11.0 11.0-12.6 12.0-13.7 70/21...

  • Page 327: I0870C

    I0870C Remote Air-Cooled Condensing Unit Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 -20 to 70/ 11.0-12.6 12.1-13.8 13.4-15.4...

  • Page 328: I1000 Series

    I1000 SERIES I1000A Self-Contained Air-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 7.5-9.0 8.2-9.8 8.8-10.4 70/21 8.4-10.0...
  • Page 329 I1000W Self-Contained Water-Cooled Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 7.4-8.9 8.5-10.1 9.4-11.1 70/21 7.8-9.3 8.9-10.6...
  • Page 330 I1000N Remote Air-Cooled Condenser Model Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 7.7-9.2 8.6-10.3 9.5-11.3 70/21 8.5-10.1 9.5-11.3...
  • Page 331 I1070C/ICVD1095 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 Harvest Water Temperature °F/°C Condenser Time °F/°C...
  • Page 332 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 Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C...

  • Page 333: I1200 Series

    I1200 SERIES S1200A Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Air Temp. Freeze Time Entering Harvest Water Temperature °F/°C Condenser Time °F/°C 50/10 70/21 90/32 8.3-9.3 8.9-10.0 9.7-10.8 70/21 9.2-10.3 9.9-11.0 10.6-11.8 80/27...
  • Page 334 S1200W Characteristics vary depending on operating conditions. CYCLE TIMES Freeze Time + Harvest Time = Total Cycle Time Freeze Time Air Temp. Harvest Around Ice Water Temperature °F/°C Time Machine °F/°C 50/10 70/21 90/32 7.5-8.7 8.4-9.8 9.7-11.2 70/21 8.5-9.9 9.7-11.2 11.1-12.8 80/27 8.6-10.0...

  • Page 335: 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 336: I0300/I0320/I0450/I0500/I0520

    I0300/I0320/I0450/I0500/I0520 Self Contained Air & Water-cooled - 1 Ph Part Number Preliminary 6/11...

  • Page 337: I0500

    I0500 Remote Air-cooled - 1Ph Part Number Preliminary 6/11...

  • Page 338: I0600/I0850/I1000/I1200

    I0600/I0850/I1000/I1200 Self Contained Air & Water-cooled - 1 & 3 Ph Part Number Preliminary 6/11...

  • Page 339: I0600/I0850/I1000

    I0600/I0850/I1000 Remote Condenser Air-cooled - 1 & 3 Ph Part Number Preliminary 6/11...

  • Page 340: I0670C/I0870C/I1070C/I1270C

    I0670C/I0870C/I1070C/I1270C QuietQube® Remote Air-cooled - 1 & 3 Ph Part Number Preliminary 6/11...

  • Page 341: Ib0690C/Ib0890C/Ib1090C

    IB0690C/IB0890C/IB1090C QuietQube® Remote Air-cooled - 1 & 3 Ph Part Number Preliminary 6/11...

  • Page 342: I1400/I1800

    I1400/I1800 Self Contained Air & Water-cooled - 1 & 3 Ph Part Number Preliminary 6/11...

  • Page 343: I1400/I1800

    I1400/I1800 Remote Air-cooled - 1 & 3 Ph Part Number Preliminary 6/11...

  • Page 344: Electronic Control Board

    Electronic Control Board Bin Switches Thermostat Display Light Micro Light Thermistors Clean Light Harvest Light SL-1 Light SL-2 Light Dump Valve Left Bin Switch Light Transformer Right Bin Switch Light Water Level Probe Light Display Ice Thickness Probe Light RS485 RT Harvest Bin LED Compressor...

  • Page 345: Refrigeration Tubing Schematics

    Refrigeration Tubing Schematics SELF-CONTAINED AIR OR WATER -COOLED I0300/I0320/I0520/I0450/I0500/I0600/I0850/I1000 T 4 T h e r m i s t o r E VA P O R ATO R H E AT E X C H A N G E R EXPANSION VALVE T 3 T h e r m i s t o r...

  • Page 346: Remote Condenser Models

    REMOTE CONDENSER MODELS I0500/I0600/I0850/I1000 T4 Thermistor EVAPORATOR HEAT EXCHANGER EXPANSION VALVE T3 Thermistor STRAINER COMPRESSOR HOT GAS SOLENOID VALVE CHECK VALVE REMOTE CONDENSER LIQUID LINE SOLENOID VALVE HARVEST PRESSURE HEAD REGULATING VALVE PRESSURE CONTROL DRIER VALVE T1 Thermistor H.P.R. SOLENOID VALVE CHECK VALVE T2 Thermistor...

  • Page 347: Remote Condensing Unit Models

    REMOTE CONDENSING UNIT MODELS I0670C/I0870C/I1070C/I1270C Condensing Unit SUCTION COMPRESSOR ACCESS VALVE LINE FILTER CHECK VALVE CONDENSER ACCUMULATOR HEAD PRESSURE CONTROL VALVE S TRAP REQUIRED 21’ OR GREATER RISE LIQUID LINE SUCTION SHUT-OFF SHUT-OFF VALVE VALVE Ice Machine Head Section EVAPORATOR HEAT EXCHANGER T4 Thermistor Thermistor...

  • Page 348: Ib Models

    IB MODELS IB0690C/IB0890C/IB1090C Condensing Unit SUCTION COMPRESSOR ACCESS VALVE LINE FILTER CHECK VALVE CONDENSER ACCUMULATOR HEAD PRESSURE CONTROL VALVE S TRAP REQUIRED 21’ OR GREATER RISE LIQUID LINE SUCTION SHUT-OFF SHUT-OFF VALVE VALVE Ice Machine Head Section EVAPORATOR HEAT EXCHANGER T4 Thermistor Thermistor LLSV...
  • Page 350 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 © 2011 Manitowoc Part Number Preliminary 6/11...

This manual is also suitable for:

Id0302aIy0304aId0303wIy0305wId0322aIy0324a ... Show all

Table of Contents

Save PDF