Manitowoc QuietQube Indigo Series Technician'S Handbook Download Page 191

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Part Number STH026 2/12

191

COMPRESSOR ELECTRICAL DIAGNOSTICS

The compressor does not start or will trip repeatedly

on overload.

Check Resistance (Ohm) Values

NOTE:

Compressor windings can have very low ohm

values. Use a properly calibrated meter.
Perform the resistance test after the compressor

cools. The compressor dome should be cool enough

to touch (below 120°F/49°C) to assure that the

overload is closed and the resistance readings will be

accurate.
SINGLE PHASE COMPRESSORS

1. Disconnect power then remove the wires from the

compressor terminals.

2. The resistance values between C and S and

between C and R, when added together, should

equal the resistance value between S and R.

3. If the overload is open, there will be a resistance

reading between S and R, and open readings

between C and S and between C and R. Allow the

compressor to cool, then check the readings

again.

THREE PHASE COMPRESSORS

1. Disconnect power and remove the wires from the

compressor terminals.

2. The resistance values between L1 and L2,

between L2 and L3, and between L3 and L1

should all be equal.

3. If the overload is open, there will be open

readings between L1 and L2, between L2 and L3,

and between L3 and L1. Allow the compressor to

cool, then check the readings again.

Indigo_Model_Tech.book Page 191 Monday, February 20, 2012 1:17 PM

Summary of Contents for QuietQube Indigo Series

Page 1: ...s 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 Indigo Series QuietQube Ice Machines Part Number STH026 2 12 Manitowoc ...

Page 2: ......

Page 3: ...st you as you work Throughout this handbook you will see the following types of procedural notices Warning Text in a Warning box alerts you to a potential personal injury situation Be sure to read the Warning statement before proceeding and work carefully Caution Text in a Caution box alerts you to a situation in which you could damage the equipment Be sure to read the Caution statement before pro...

Page 4: ...covered by this handbook do not proceed contact Manitowoc Foodservice We will be happy to provide assistance Important Routine adjustments and maintenance procedures outlined in this handbook are not covered by the warranty Warning PERSONAL INJURY POTENTIAL Do not operate equipment that has been misused abused neglected damaged or altered modified from that of original manufactured specifications ...

Page 5: ...al Ice Machine Limited Warranty 18 Installation Stacking Two Ice Machines on a Single Storage Bin 23 Ice Deflector 23 Location of Ice Machine 24 Head Section 24 Ice Beverage Models 25 Location of ICVD Condensing Units 26 Clearance Requirements 27 Ice Machine Heat of Rejection 28 I1470C I1870C I2170C Installation on a Manitowoc Bin 29 Ice Machine on a Dispenser Installation 30 Lineset Applications ...

Page 6: ...g Sanitizing Procedure 43 Preventative Maintenance Cleaning Proce dure 43 Exterior Cleaning 43 Cleaning Sanitizing Procedure 44 Cleaning Procedure 44 Sanitizing Procedure 47 Parts Removal for Cleaning Sanitizing 50 Operation Control Panel Features 61 Buttons 61 Display Panel 62 Menu Navigation Overview 63 Display Panel Navigation 64 Alerts and Messages 66 Main Menu 67 Machine Info Menu 68 Password...

Page 7: ...USB Setup 79 Factory Defaults 79 Energy Saver Menu 80 Ice Program 81 Water Miser 82 Statistics 82 Service Menu 83 Data History 84 Real Time Data 85 Diagnostics 87 Manual Harvest 88 Replace Control Board 88 USB Setup 88 Event Log Menu 89 Event Log 90 USB Flash Drive Specifications and Format ting 94 Upgrading Firmware with a Flash Drive or Transferring Setup Data To Multiple Ma chines 96 Exporting ...

Page 8: ...alyzing Why a Safety Limit Stopped the Ice Machine 112 Safety Limit 1 113 Safety Limit 2 114 Troubleshooting By Symptom 117 Symptom 1 Ice Machine will not run 119 Diagnosing a Condensing Unit That Will Not Run 123 Symptom 2 Low Production Long Freeze 124 QuietQube Models Freeze Cycle Refrig eration System Operational Analysis Tables 126 QuietQube Models Freeze Cycle Refrig eration System Operation...

Page 9: ...se 169 Bin Switch 170 Water Level Control Circuitry 173 Ice Thickness Probe Harvest Initiation 177 High Pressure Cutout HPCO Control 181 Low Pressure Cutout LPCO Control 184 Fan Cycle Control 185 Thermistors 186 Harvest Assist Air Pump 190 Compressor Electrical Diagnostics 191 Diagnosing Start Components 193 Refrigeration Components 198 Head Pressure Control Valve 198 Suction Accumulator Operation...

Page 10: ...ure Charts 221 I0680C ICVD0695 222 IB0690C ICVD695 223 I0870C ICVD895 224 IB0890C ICVD895 225 I1070C ICVD1095 226 IB1090C ICVD1195 227 I1470C ICVD1495 228 I1870C ICVD1895 229 I2170C ICVD2195 230 Diagrams Wiring Diagrams 231 Wiring Diagram Legend 231 All ICVD Models Interconnecting wiring 232 I0670C I0870C I1070C I1270C 233 IB0690C IB0890C IB1090C 234 II1400 I1800 I2170 235 iCVD2095 236 Electronic ...

Page 11: ...Condensing Unit 9 Remote Air Cooled Condenser OR 9 Ice Beverage Remote Condensing Unit ICE CUBE SIZE R Regular D Dice Y Half Dice Not Used On IB Models Ice Machine Series CONDENSER TYPE A Self Contained Air Cooled W Self Contained Water Cooled N Remote Air Cooled C CVD Air Cooled DC IB Dice Model YC IB Half Dice 3 Three Phase E WRAS 50 Cycle Only NO INDICATOR 1 Phase VOLTAGE 161 115 60 1 261 208 2...

Page 12: ...t that has been misused abused neglected damaged or altered modified from that of original manufactured specifications This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision concerning use of the appliance by a person responsible for their safety ICVD 1495 ...

Page 13: ...the OWNER WARRANTY REGISTRATION CARD They are also listed on the MODEL SERIAL NUMBER DECAL affixed to the front and rear of the ice machine Warning All Manitowoc ice machines require the ice storage system bin dispenser etc to incorporate an ice deflector Prior to using a non Manitowoc ice storage system with other Manitowoc ice machines contact the manufacturer to assure their ice deflector is co...

Page 14: ...S Ice Machine Head Section ICVD Condensing Unit ID0682C IY0684C IB0694YC ICVD0695 ID0872C IY0874C IB0894YC ICVD0895 ID1072C IY1074C ICVD1095 IB1094YC ICVD1195 ID1472C IY1474C ICVD1495 ID1872C IY1874C ICVD1895 ID2172C IY2174C ICVD2095 ID3072C IY3074C ICVD3095 ...

Page 15: ...d 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 coverage for your new ice machine Important Complete and mail the OWNER WARRANTY REGISTRATION CARD as soon as possible to validate the installation date ...

Page 16: ... warranty is limited to the repair or replacement of parts components or assemblies that in the opinion of the COMPANY are defective This warranty is further limited to the cost of parts components or assemblies and standard straight time labor charges at the servicing location Time and hourly rate schedules as published from time to time by the COMPANY apply to all service procedures Additional e...

Page 17: ...ions in writing THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES OR GUARANTEES OF ANY KIND EXPRESSED OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE In no event shall the COMPANY be liable for any special indirect incidental or consequential damages Upon the expiration of the warranty period the COMPANY S liability under this warranty shall terminat...

Page 18: ... be free of defects in material or workmanship for the warranty period outlined below under normal use and maintenance and upon proper installation and start up in accordance with the instruction manual supplied with the Product HOW LONG DOES THIS LIMITED WARRANTY LAST WHO IS COVERED BY THIS LIMITED WARRANTY This limited warranty only applies to the original consumer of the Product and is not tran...

Page 19: ...e balance of the original warranty period whichever is longer The foregoing constitutes Manitowoc s sole obligation and the consumer s exclusive remedy for any breach of this limited warranty Manitowoc s liability under this limited warranty is limited to the purchase price of Product Additional expenses including without limitation service travel time overtime or premium labor charges accessing o...

Page 20: ...talled and or maintained in accordance with the instruction manual or technical instructions provided by Manitowoc To the extent that warranty exclusions are not permitted under some state laws these exclusions may not apply to you EXCEPT AS STATED IN THE FOLLOWING SENTENCE THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY OF MANITOWOC WITH REGARD TO THE PRODUCT ALL IMPLIED WARRANTIES ARE S...

Page 21: ...TRACT TORT OR ANY OTHER THEORY OF LIABILITY Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you HOW STATE LAW APPLIES This limited warranty gives you specific legal rights and you may also have rights that vary from state to state or from one jurisdiction to another REGISTRATION CARD To secure prompt ...

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Page 23: ...ICE DEFLECTOR An ice deflector is required for all ice machines installed on a bin 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 Failure caused by exposure to freezing...

Page 24: ...rature must be at least 35 F 1 6 C but must not exceed 110 F 43 C Ice Making Water Inlet Water Pressure must be at least 20 psi 1 38 bar but must not exceed 80 psi 5 52 bar The location must not be near heat generating equipment or in direct sunlight and protected from weather The ice machine must be protected if it will be subjected to temperatures below 32 F 0 C Failure caused by exposure to fre...

Page 25: ...ion of the ice machine Maintain a 3 space between the back of the ice machine and the back of the dispenser to allow room for the refrigeration line set service loop The water inlet and electrical connection must contain a service loop to allow future service and maintenance access The drain line must contain a union or other suitable means of disconnection at the ice machine head section The loca...

Page 26: ...D1495 ICVD1895 ICVD2195 Only The air temperature must be at least 20 F 28 9 C but must not exceed 130 F 54 4 C ICVD695 ICVD1195 ICVD2195 ICVD3095 Only The air temperature must be at least 20 F 28 9 C but must not exceed 120 F 48 9 C The location must not allow exhaust fan heat and or grease to enter the condenser The location must not obstruct airflow through or around the condensing unit See belo...

Page 27: ...Machine Head Section ICVD Condensing Unit Top 5 12 7 cm 0 0 cm Sides 5 12 7 cm 0 0 cm Back Standard Connections 5 12 7 cm 48 122 cm Back Connections Out Top 3 7 6 cm N A Front 24 61 0 cm Ice Beverage Models IB0690C IB0890C IB1090C Ice Machine Head Section ICVD Condensing Unit Top 2 5 1 cm 0 0 cm Sides 8 20 3 cm 0 0 cm Back 5 12 7 cm 48 122 cm Front 48 122 cm 6 15 2 cm is recommended for servicing ...

Page 28: ... Ice Machine Heat of Rejection Air Conditioning Peak I0600 9000 13900 I0850 13000 16000 I1000 16250 18600 I1200 20700 24500 I1400 23500 27000 I1800 30000 35000 BTU Hour Because the heat of rejection varies during the ice making cycle the figure shown is an average ...

Page 29: ... 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 Warning PERSONAL INJURY POTENTIAL Do not operate any ice machine with the deflector removed RE INSTALL TOP COVER REMOVE 1 SCREW ON EACH SIDE REMOVE DEFLECTOR REMOVE 2 SCREWS ON EACH SIDE ...

Page 30: ...s going on a larger dispenser 22 machine on a 30 dispenser Important Manitowoc Ice Beverage Ice Machines require an adapter for mounting Adapters are not included with the ice machine dispenser or bin and must be ordered separately When a non Manitowoc adapter is used verify the adapter is compatible with Manitowoc Ice Beverage Ice Machines prior to installation Warning Ice Beverage ice machines a...

Page 31: ...odified with a condenser heat reclaim device or other parts or assemblies not manufactured by Manitowoc Ice Warning Recovery locations vary by model Verify you are making the correct connections for your model to prevent accidental release of high pressure refrigerant Important Manitowoc remote systems are only approved and warranted as a complete new package Warranty on the refrigeration system w...

Page 32: ...C ICVD1895 I2170C ICVD2095 RC 28 RC 38 RC 58 Line Set Suction Line Liquid Line Minimum Insulation Thickness RC 26 36 56 5 8 inch 16 mm 3 8 inch 10 mm 1 2 13mm Suction Line 1 4 7mm Liquid Line RC 25 35 55 3 4 inch 19 mm 1 2 inch 13 mm 1 2 13mm Suction Line 1 4 7mm Liquid Line RC 28 38 58 3 4 inch 19 mm 5 8 inch 16 mm 1 2 13mm Suction Line 1 4 7mm Liquid Line RC 29 39 59 Two Lines 3 4 inch 19 mm One...

Page 33: ... Failure to properly wire the iCVD condensing unit or ice machine head section will result in a non operational machine Wire Specifications 18 AWG 5 Conductor Single Strand Plenum Rated UL rated to 300 volts Ice Machine Condenser Additional Amount of Refrigerant To Be Added To Nameplate Charge I0680C I0680C IB0690C ICVD0695 1 5 lbs 680 g I0870C ICVD0895 4 lbs 1814 g IB890C ICVD0895 2 lbs 907 g I10...

Page 34: ...p The maximum rise is 35 10 7 m The maximum drop is 15 4 5 m 35 ft 10 7 m Rise The maximum distance the Condenser or Condensing Unit can be above the ice machine 15 ft 4 5 m Drop The maximum distance the Condenser or Condensing Unit can be below the ice machine SV1751 35 FT 10 7 M MAXIMUM DISTANCE SV1750 15 FT 4 5 M MAXIMUM DISTANCE ...

Page 35: ...red drop into the formula below Multiply by 6 6 to get the calculated drop Example A condenser located 10 feet below the ice machine has a calculated drop of 66 feet 3 Insert the measured horizontal distance into the formula below No calculation is necessary 4 Add together the calculated rise calculated drop and horizontal distance to get the total calculated distance If this total exceeds 150 45 ...

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Page 37: ...nt Identification I Model Single Evaporator Models O f f O n O f f M o d e WATER DISTRIBUTION TUBE WATER TROUGH ICE THICKNESS CONTROL REFRIGERATION ACCESS VALVES EVAPORATOR DISPLAY WATER PUMP WATER LEVEL PROBE CONTROL BOX WATER CURTAIN ...

Page 38: ...UBE WATER CURTAIN DUMP VALVE SHUT OFF VALVES ELECTRICAL COMPARTMENT ICE THICKNESS PROBE WATER TROUGH COOL VAPOR VALVE LIQUID LINE SOLENOID VALVE RECEIVER LIQUID LINE DRIER WATER INLET VALVE TXV ELECTRICAL COMPARTMENT DISCHARGE LINE CHECK VALVE DISPLAY TOUCHPAD LUMINICE ...

Page 39: ...95 ICVD1095 ICVD1195 ICVD1295 ICVD1495 ACCESS VALVE CONDENSER FAN MOTOR HEAD PRESSURE CONTROL VALVE AIR CONDENSER COMPRESSOR SUCTION ACCUMULATOR LIQUID LINE AND SUCTION LINE CONNECTION POINTS ELECTRICAL COMPARTMENT CHECK VALVE ACCESS VALVE LPCO ...

Page 40: ... SUCTION ACCUMULATOR COMPRESSOR LIQUID LINE AND SUCTION LINE CONNECTION POINTS AIR CONDENSER HEAD PRESSURE CONTROL VALVE CONDENSER FAN MOTOR ICVD3095 HAS 2 FANS ACCESS VALVES ELECTRICAL COMP CHECK VALVE Not Used On Scroll Compressors ACCESS VALVE ...

Page 41: ...lean and sanitize the ice machine every six months for efficient operation If the ice machine requires more frequent cleaning and sanitizing consult a qualified service company to test the water quality and recommend appropriate water treatment An extremely dirty ice machine must be taken apart for cleaning and sanitizing Manitowoc Ice Machine Cleaner and Sanitizer are the only products approved f...

Page 42: ...ion of Federal law to use these solutions in a manner inconsistent with their labeling Read and understand all labels printed on bottles before use Caution Do not mix Cleaner and Sanitizer solutions together It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling Warning Wear rubber gloves and safety goggles and or face shield when handling Ice Machine ...

Page 43: ...he bi yearly cleaning sanitizing procedure EXTERIOR CLEANING Clean the area around the ice machine as often as necessary to maintain cleanliness and efficient operation Wipe surfaces with a damp cloth rinsed in water to remove dust and dirt from the outside of the ice machine If a greasy residue persists use a damp cloth rinsed in a mild dish soap and water solution Wipe dry with a clean soft clot...

Page 44: ...achine Cleaner and Sanitizer for this application Manitowoc Cleaner part number 94 0546 3 and Manitowoc Sanitizer part number 94 0565 3 It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling Read and understand all labels printed on bottles before use Caution Do not mix Cleaner and Sanitizer solutions together It is a violation of Federal law to use th...

Page 45: ...allow the ice to melt Step 2 Remove all ice from the bin dispenser Step 3 Press the clean switch Water will flow through the water dump valve and down the drain Wait until the water trough refills and the display indicates add solution approximately 1 minute then add the proper amount of ice machine cleaner Caution Never use anything to force ice from the evaporator Damage may result Model Amount ...

Page 46: ...parts have been removed Single Evaporator Ice Machines page 50 Dual Evaporator Ice Machines page 54 Step 6 Mix a solution of cleaner and lukewarm water Depending upon the amount of mineral buildup a larger quantity of solution may be required Use the ratio in the table below to mix enough solution to thoroughly clean all parts Warning Disconnect the electric power to the ice machine at the electri...

Page 47: ...faces of the ice machine and bin or dispenser Use a nylon brush or cloth to thoroughly clean the following ice machine areas Side walls Base area above water trough Evaporator plastic parts including top bottom and sides Bin or dispenser Rinse all areas thoroughly with clean water SANITIZING PROCEDURE Step 9 Mix a solution of sanitizer and lukewarm water Step 10 Use 1 2 of the sanitizer water solu...

Page 48: ...o liberally apply the solution When sanitizing pay particular attention to the following areas Side walls Base area above water trough Evaporator plastic parts including top bottom and sides Bin or dispenser Do not rinse the sanitized areas Step 12 Replace all removed components Step 13 Wait 20 minutes Step 14 Reapply power to the ice machine and press the Clean button ...

Page 49: ...ter trough by pouring between the water curtain and evaporator Step 16 Select auto ice on press the checkmark and close and secure the front door The ice machine will automatically start ice making after the sanitize cycle is complete approximately 24 minutes Model Amount of Sanitizer I600 I0850 I1000 I1200 IB0690C IB0890C 3 ounces 90 ml IB1090C 3 5 ounces 104 ml I1400 I1800 I2100 12 ounces 355 ml...

Page 50: ... water trough Depress tabs on right and left side of the water trough Allow front of water trough to drop as you pull forward to disengage the rear pins C Remove the water level probe Pull the water level probe straight down to disengage Lower the water level probe until the wiring connector is visible Disconnect the wire lead from the water level probe Remove the water level probe from the ice ma...

Page 51: ...s control wiring from the control board E Remove the water distribution tube NOTE Distribution tube thumbscrews are retained to prevent loss Loosen thumbscrews but do not pull thumbscrews out of distribution tube Loosen the two outer screws do not remove screws completely they are retained to prevent loss and pull forward on the distribution tube to release from slip joint Disassemble distribution...

Page 52: ...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 A B C D E ...

Page 53: ...d from the water level probe Remove the water level probe from the ice machine E Remove the water distribution tube NOTE Distribution tube thumbscrews are retained to prevent loss Loosen thumbscrews but do not pull thumbscrews out of distribution tube Loosen the two outer screws do not remove screws completely they are retained to prevent loss and pull forward on the distribution tube to release f...

Page 54: ...rator splash shields Grasp the top center of splash shields Lift up and then out C Remove the water trough shield Grasp the water trough shield in the center and the left end Flex the water trough shield in the center and pull the left end forward until clear of the side wall Repeat for the right end Pull water trough shield forward to remove A B C D E F ...

Page 55: ...bution tubes Distribution tubes thumbscrews are retained to prevent loss Loosen thumbscrews but do not pull thumbscrews out of distribution tube Loosen the two outer screws and pull forward on the distribution tube to release from slip joint Disassemble distribution tube by loosening the two 2 middle thumbscrews and dividing the distribution tube into two pieces F Remove the water trough Depress t...

Page 56: ...s of water in a container 2 Soak probes in container of cleaner water solution while disassembling and cleaning water circuit components soak probes for 10 minutes or longer 3 Clean all probe surfaces including all plastic parts do not use abrasives Verify all surfaces are clean Thoroughly rinse probes with clean water 4 Reinstall probe then sanitize the ice machine and bin dispenser interior surf...

Page 57: ...water inlet valve must allow the proper water flow through it Press the Power button to energize the ice machine Watch for water flow into the ice machine If the water flow is slow or only trickles into the ice machine refer to water system checklist Follow the procedure below to remove the water inlet valve 1 Remove the 1 4 hex head screws 2 Remove clean and install the filter screen Warning Disc...

Page 58: ...o not remove it Instead follow the Ice Machine Cleaning Procedure Follow the procedure below to remove the dump valve 4 If so equipped remove the water dump valve shield from its mounting bracket 5 Leaving the wires attached twist coil and rotate it counter clockwise1 4 turn 6 Lift the coil assembly off the valve body 7 Remove the spring plunger and nylon gasket from the valve body NOTE At this po...

Page 59: ... cleaning do not stretch or damage the spring 1 Remove the tubing from the dump valve by twisting the clamps off 2 Remove the valve body twist off Dump Valve Disassembly SPRING PLUNGER DIAPHRAM VALVE BODY COIL MOUNTING BRACKET NYLON GASKET ...

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Page 61: ...play panel BUTTONS Power Button Powers the ice machine when in the On Off Mode The ice machine can also be programmed to automatically power on and off in two Energy Saver modes Cleaning Button Initiates a cleaning cycle Refer to the Maintenance section for details Manitowoc Menu Button Power Button LCD Display Checkmark Cleaning Button Navigation Arrows ...

Page 62: ...underline within a line of settings NOTE The Right arrow can also be used on many screens interchangeably with the checkmark to make a selection Up and Down Arrows Move the highlight brackets up one line or down one line Checkmark Makes a selection and or moves to the next screen or line DISPLAY PANEL The LCD display panel is 16 characters wide and four lines deep During ice machine operation and ...

Page 63: ...e Info Set Up Fact Deflts Energy Saver Service Time Date Time Config Edit Password Units Ice Clarity LCD Bright Password On Off Clean Minder AuCS Run Time Air Filter Water Filter LuminIce Ice Program Water Miser Statistics Optional Password Entry 90 70 cap Model IMH Serial Cond Serial Warranty Machine Evaporator Compressor Install Date Manuf Date Main SW Ver Disply SW Ver Language USB Setup Ice Bi...

Page 64: ...kets down from the fourth line to view more of the menu displayed Arrows Two kinds of arrows give cues to additional information symbols show that another screen is available by pressing Checkmark while a line is highlighted and symbols indicate the limits of the screen viewed NOTE Another cue to the length of a menu screen is that Exit is the last item Time Date Time Config Units Language 07 24 1...

Page 65: ...Left arrows Use the Checkmark to move the cursor down one line Exit and re enter the screen to start again at the top Selections When parentheses appear they indicate a selection is available by pressing Checkmark while the line is highlighted If the choice is exclusive selecting it with the Checkmark will uncheck another selection That is in the above Time Config example selecting Day Mo Yr will ...

Page 66: ...list of alerts will appear in the display 2 Choose the alert you wish to address by moving the highlight brackets with the Down arrow 3 Press Checkmark again A screen appears with the date time and total number of times an alert has occurred Pressing the Down arrow will list some possible causes for the alert At the bottom of the screen you will be able to clear the alert by pressing the Checkmark...

Page 67: ... From the Home screen press the Menu button to enter the Main menu where you can choose to see machine information make setup changes set the Energy Saver mode or enter the Service Menu Machine Info Set Up Energy Saver Factory Defaults Service Exit ...

Page 68: ... serial number warranty installation date date of manufacture and software version Use the Down arrow to highlight an item and use the Checkmark to view the information Press the Left arrow to return to previous screens Set Up Menu Set Up Language Time Date Time Configuration Units Ice Clarity LCD Bright Password On Edit Password Clean Minder AuCS RunTime Air Filter Water Filter LUMINICE Ice Bin S...

Page 69: ...e Down arrow to highlight setup and press the Right arrow 3 Use the Down arrow to highlight Password ON and press the Right arrow 4 Press the Right arrow again with Enter Passwrd highlighted and an icon will flash 5 Use the Up Down arrows to enter the factory password 1 2 3 4 Enter the number 1 in the flashing icon first digit of the factory password 6 Press the right arrow to move to the next cel...

Page 70: ... Password and press the Right arrow 4 Using the Up Down arrows enter the first digit of the factory password in the flashing icon 5 Press the right arrow to move to the next cell and use the Up Down arrows to add the number 2 Repeat this process to add 3 4 6 When the last number is entered press the Checkmark button 7 Follow steps 4 5 and enter your 4 digit password 8 When the last number is enter...

Page 71: ... button two times to reset the ice machine The display will return to the Set Up menu and the defaults listed below will be in effect Refer to Setup to adjust settings Setting Default Language English Time Date Month Day Year Time Time Configuration Mo Day Yr 24 Hour Units Fahrenheit Lbs Gallons Ice Clarity Off LCD Brightness Level 2 Password On Off Enter Password Default Password 1234 Edit Passwo...

Page 72: ...highlighting your choice and pressing the Checkmark Selecting one language will deselect the others 3 When the check reflects your preference use the Down arrow to navigate to Exit and press the Checkmark The display will return to the Set Up menu TIME DATE When the ice machine is installed the correct time and date needs to be set for its location Set the Time and Date 1 Press the Menu button 2 P...

Page 73: ...r Down arrow adjust the day if necessary 8 When the correct day appears use the Right arrow to move the blinking cursor to year 9 Using the Up or Down arrow adjust the year if necessary 10 When the correct year appears press the Checkmark Use the Right arrow to move the blinking cursor to hour 11 Using the Up or Down arrow adjust the hour if necessary 12 When the correct hour appears use the Right...

Page 74: ...cks reflect your preference use the Down arrow to navigate to Exit and press the Checkmark The display will return to the Set Up menu UNITS 1 From the Set Up menu use the Down arrow to highlight Units 2 Press the Checkmark On this screen you can choose whether the ice machine will display measurements in Celsius or Fahrenheit kilograms or pounds and gallons or liters by highlighting your choice of...

Page 75: ...ose to turn the ice clarity feature ON or OFF by highlighting your choice and pressing the Checkmark Selecting one will deselect the other 3 When the check reflects your preference use the Down arrow to navigate to Exit and press the Checkmark The display will return to the Set Up menu LCD BRIGHTNESS Here the brightness of the LCD display can be adjusted 1 From the Set Up menu use the Down arrow t...

Page 76: ... current password 3 Enter new password and press the Checkmark 4 Press the Left arrow to return to previous screens and to the Set Up menu CLEAN MINDER Clean Minder is a feature that displays a cleaning reminder at a set time interval 1 From the Set Up menu use the Down arrow to highlight Clean Minder 2 Press the Checkmark On this screen you can choose to turn the reminder ON or OFF by highlightin...

Page 77: ...ting Set Interval and pressing the Checkmark 4 Press the Left arrow to return to previous screens and to the Set Up menu AIR FILTER The ice machine has a feature that displays a clean air filter reminder at a set time interval 1 From the Set Up menu use the Down arrow to highlight Air Filter 2 Press the Checkmark On this screen you can choose to turn the reminder to AUTO or OFF by highlighting you...

Page 78: ...screen by highlighting Set Interval and pressing the Checkmark 6 Press the Left arrow to return to previous screens and to the Set Up menu LUMINICE REMINDER The LuminIce growth inhibitor recirculates the air in the ice machine foodzone over a UV bulb This process will inhibit the growth of common micro organisms on all exposed foodzone surfaces The Bulb Minder is a feature that displays a reminder...

Page 79: ... to reset the ice machine The display will return to the Set Up menu For more details and instructions for changing ice machine settings see Set Up Menu Setting Default Language English Time Date Month Day Year Time Time Configuration Mo Day Yr 24 Hour Units Fahrenheit Lbs Gallons Ice Clarity Off LCD Brightness Level 2 Password Off Enter Password Default Password 1234 Edit Password Off Edit Passwo...

Page 80: ...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 Energy Saver Menu Energy Saver Ice Program Water Miser Statistics Exit ...

Page 81: ...he other If one of them is selected and you wish to turn both off highlight the choice and press Checkmark again 3 If neither of the programs is selected highlighting Settings and pressing the Checkmark will simply return to the top of this screen If one of the programs is selected highlight Settings and press the Checkmark to choose the times or bin levels NOTE For details on how to use the curso...

Page 82: ...highlighting your choice and pressing the Checkmark Selecting one will deselect the other NOTE Settings will not be saved if the Checkmark is not pressed after choosing On or Off 3 Press the Left arrow to return to previous screens and to the Energy Saver menu STATISTICS 1 From the Energy Saver menu use the Down arrow to highlight Statistics 2 Press the Checkmark Choose to view ice production pota...

Page 83: ...nu The following pages list the navigation options available by drilling into the menus with the down arrow Service Data History 00000000 00000000 00000000 00000000 00000000 00000000 Lifetime Exit RealTime Data Time Temp Inputs Outputs Exit Diagnostics Control Board Temp Sensors Inputs Exit Man Harvest Hrvst Started Exit Repl Cntl Bd Manual Setup USB Setup Exit USB Setup USB Stick Exit Event Log V...

Page 84: ...the available information For each of the dates use the Checkmark to view Minimum Freeze Maximum Freeze Minimum Harvest Maximum Harvest Maximum Temperature Delta T3 T4 Delta T3 T4 RunTime Ice Production Cycle Count Potable Water Clean Cycles Exit For Lifetime use the Checkmark to view Install Date Control Board Replacement Date Control Board DOM Date Of Manufacture RunTime Cycle Count Potable Wate...

Page 85: ...cle Time T1 Thermistor Temperature T2 Thermistor Temperature T3 Thermistor Temperature T4 Thermistor Temperature T3 T4 Delta Temperature 100 hz 120 hz Exit Inputs Status Off On Displays stage of cycle Curtain Switch 1 Curtain Switch 2 LPCO Switch HPCO Switch Bin Level Low Optional Bin Level Probe Status Bin Level Medium Optional Bin Level Probe Status Bin Level High Optional Bin Level Probe Status...

Page 86: ... Outputs Status Off On Displays stage of cycle Water Pump Off On Hot Gas Valve 1 Off On Hot Gas Valve 2 Off On Air Pump Off On Water Valve Off On Dump Valve Off On Compressor Control Off On AuCS Relay Off On LuminIce Off On Exit ...

Page 87: ...Thermistor Temperature T2 Thermistor Temperature T3 Thermistor Temperature T4 Thermistor Temperature Exit Inputs Curtain Switch 1 Closed Open Curtain Switch 2 Closed Open LPCO Switch Closed Open HPCO Switch Closed Open Bin Level Low Optional Bin Level Probe Closed Open Bin Level Medium Optional Bin Level Probe Closed Open Bin Level High Optional Bin Level Probe Closed Open Sensing Ice No Yes Water...

Page 88: ...l board refer to exporting data to a flash drive page 98 or entered manually through the Indigo interface Manual Setup Board Install Date Input Model Number Ice Machine serial Number Condenser condensing unit serial number USB Setup Insert Drive Press Checkmark and wait for completion Exit USB SETUP USB Stick Download Firmware Insert drive and wait for completion Download Configuration Insert driv...

Page 89: ...when it occurred and how many times Use the Down arrow to view information on subsequent event codes For more information on event codes see Service Menu Use the Left arrow to return to the Event Log menu To clear the event log In the Event Log Menu use the Down arrow to highlight Clear ELog and press the Checkmark Press the Left arrow to return to previous screens Event Log Menu Event Log View EL...

Page 90: ...tch Fault Open more than 12 hours E13 Spare E14 Spare E15 Fan Cycle Control Fault Lo Liquid Line Temperature E16 Remote Condenser Fault E17 Spare E18 Spare E19 Ice Thickness Probe Fault E20 Water System Fault E21 T1 Temperature Sensor Issue E22 T2 Temperature Sensor Issue E23 T3 Temperature Sensor Issue E24 T4 Temperature Sensor Issue E25 Bin Level Probe Low Sensor Fault E26 Bin Level Probe Medium...

Page 91: ...ower Supply Event Log only No Alarm When power is interrupted to the ice machine the control board will log the event in the ELOG and stamp the loss of power on power up E04 Hi Cnd Temp or Wtr Cnd Fault Air Condenser High temp or water Condenser High 1 Liquid Line Temperature too High for Self contained Air Cooled Ice machine Air Cooled Condenser Fault 2 Liquid Line Temperature too High for Self c...

Page 92: ...e than 12 hours Curtain Fault The ice machine is set to ice making and remains in bin full condition for more than 12 hours The curtain switch is open or curtain is off E13 Spare E14 Spare E15 Low Liq Temp Low amb control fault durring low amb If the liquid line temperature drops below 60 F for any period exceeding 1 minute contiguous during the the freeze cycle E Log Display Text Error Descriptio...

Page 93: ...a thermistor had a six second average thermistor values fall outside of the valid temperature range E22 T2 Fault T2 Sensor E23 T3 Fault T3 Sensor E24 T4 Fault T4 Sensor E25 Bin Prb Fault Bin Low Sens E Log Display Text Error Description Definition Detail Event Log Service Definition Indigo_Model_Tech book Page 93 Monday February 20 2012 1 17 PM ...

Page 94: ...s Vista Computers 1 Insert USB flash drive your computer may indicate Found New Hardware follow the prompts to install the USB flash drive USB flash drive may auto play Close auto play window 2 Press Windows Key and E key simultaneously to access windows explorer 3 Right click on your USB Flash Drive 4 Left click on Format 5 Verify or select the settings below USB flash drive capacity 2 GB or less...

Page 95: ...n OK Left click on Disk Management 3 Verify USB flash drive capacity is 2 GB or less 4 Right click on the USB flash drive then left click on Format from the drop down list 5 Verify or select the settings below Volume Label is Optional Rename if desired File System Fat32 Allocation Unit Size must be 512 MB Deselect Perform A Quick Format no checkmark 6 Left click on OK you will receive a warning Fo...

Page 96: ...ess the Checkmark The Service menu will be displayed 6 Press the Down arrow until USB Setup is highlighted 7 Press the Checkmark USB Stick will appear highlighted 8 Press the Checkmark again A submenu with Download Frm Download Firmware appears 9 Ensure that Download Frm is highlighted and press the Checkmark A display of instructions will appear Important The flash drive must be formatted before ...

Page 97: ...h the firmware version number 12 Verify the new firmware version loaded by navigating to Menu Machine information Main Software Version and verify the firmware version number RT Harvest Compressor LT Harvest Pump Display Light Micro Light Clean Light Harvest Light SL 1 Light SL 2 Light Fuse Thermistors T1 T2 T3 T4 Display RS485 Bin LED Water Level Probe LuminIce Transformer Battery Bin Switches Bi...

Page 98: ...splayed 5 Press the Down arrow until USB Setup is highlighted 6 Press the Checkmark USB Stick will appear highlighted 7 Press the Checkmark again A submenu with Export ALL and Export Setup appears 8 Highlight Export ALL or Export Setup depending on your requirements and press the Checkmark A display of instructions will appear 9 Follow these on screen instructions to A Insert Drive Insert the flas...

Page 99: ...ean Light Harvest Light SL 1 Light SL 2 Light Fuse Thermistors T1 T2 T3 T4 Display RS485 Bin LED Water Level Probe LuminIce Transformer Battery Bin Switches Bin Thermostat USB Ice Thickness Probe Light Water Level Probe Light Right Bin Switch Light Left Bin Switch Light Dump Valve Relay Lights USB Connector ...

Page 100: ...iates and monitors the safe mode The control will automatically exit the safe mode if a normal signal is received from the input After 72 hours the control board will enter a standby mode and turn off NOTE The control board needs a five cycle history to operate safe mode If five cycles have never been successfully completed the ice machine will shut off Example The ice machine is a new installatio...

Page 101: ... proper operation always follow the Operational Checks when starting the ice machine for the first time after a prolonged out of service period after cleaning and sanitizing NOTE Routine adjustments and maintenance procedures are not covered by the warranty Important Refrigeration compressors must be operated for a minimum break in period of 72 hours before full ice production will be reached ...

Page 102: ...t 1 8 3 mm thick 2 If adjustment is necessary turn the ice thickness probe adjustment screw clockwise to increase bridge thickness counterclockwise to decrease bridge thickness As a starting point place a 9 32 7 mm drill bit between the ice thickness probe and the evaporator Make final adjustments to achieve a 1 8 3 mm thick bridge NOTE Turning the adjustment 1 3 of a turn will change the ice thic...

Page 103: ...ed to purge the ice machine of old water This feature ensures that the ice making cycle starts with fresh water 2 Refrigeration System Start Up Ice Machine Head Section The harvest valve s air pump s and liquid line solenoid valve energizes to equalize high and low side refrigeration pressure After 10 seconds the harvest valve s and air pump s de energize ICVD Condensing Unit The low pressure swit...

Page 104: ...pump s energizes and water flows over the evaporator After water contacts the water level probe the water fill valve de energizes The control board will automatically cycle the water fill valve within the 6 minute 8 minute for dual evaporator water fill time limit The valve energizes once in the pre chill and up to twice in the freeze cycle The freeze cycle continues until the six minute freeze lo...

Page 105: ... s remains open The refrigerant gas warms the evaporator causing the cubes to slide as a sheet off the evaporator and into the storage bin Single evaporator models The sliding sheet of cubes opens the water curtain ice damper and bin switch The momentary opening and re closing of the bin switch will terminate the harvest sequence and return to the freeze sequence Step 3 4 Twin evaporator models Th...

Page 106: ...n automatically restart ICVD Condensing Unit The liquid line solenoid valve closes and the condensing unit pumps down The LPCO opens and signals the control board The control board starts a ten minute delay period and opens the 24 VAC circuit to the contactor coil stopping the compressor and condenser fan motor RESTART AFTER AUTOMATIC SHUT OFF The ice machine remains off until enough ice has been ...

Page 107: ...ter Pump Harvest Valve s Air Pumps Water Inlet Valve Water Dump Valve Liquid Line Solenoid Valve Contactor Refrigeration Compressor Condenser Fan Motor Length of Time Start Up Initial or After Auto Shut Off 1 Water Purge On Off Off Off On Off Off 45 Seconds Indigo_Model_Tech book Page 107 Monday February 20 2012 1 17 PM ...

Page 108: ...n Single Twin Evaporator QuietQube Models Energized Parts Chart Continued Ice Making Sequence of Operation Water Pump Harvest Valve s Air Pumps Water Inlet Valve Water Dump Valve Liquid Line Solenoid Valve Contactor Refrigeration Compressor Condenser Fan Motor Length of Time Indigo_Model_Tech book Page 108 Monday February 20 2012 1 17 PM ...

Page 109: ...atically ends the harvest cycle When the bin switch is closed a freeze sequence initiates steps 3 4 When the bin switch is open an automatic shutoff sequence initiates The maximum water fill is 6 minutes WATER ASSIST HARVEST FEATURE Twin Evaporators Only Typical duration of a Harvest sequence is less than 2 5 minutes When the Harvest sequence time reaches 4 minutes the following occurs 4 minutes i...

Page 110: ...110 Part Number STH026 2 12 This Page Intentionally Left Blank ...

Page 111: ...reeze time reaches 60 minutes the control board automatically initiates a harvest cycle If 6 consecutive 60 minute freeze cycles occur the ice machine stops Safety Limit 2 single evaporator models If the harvest time reaches 3 5 minutes the control board automatically returns the ice machine to the freeze cycle If 500 consecutive 3 5 minute harvest cycles occur the ice machine stops Safety Limit 2...

Page 112: ...ure at night a water pressure drop the water is turned off one night a week etc Refrigeration and electrical component failures will cause a safety limit trip Eliminate all electrical components and external causes first If it appears that the refrigeration system is causing the problem use Manitowoc s Freeze Cycle Refrigeration System Operational Analysis Table along with detailed charts checklis...

Page 113: ...ctrical System Low incoming voltage Ice thickness probe out of adjustment Harvest cycle not initiated electrically Contactor not energizing Compressor electrically non operational Defective fan cycling control Defective fan motor Miscellaneous Non Manitowoc components Improper refrigerant charge Defective head pressure control Defective harvest valve Defective compressor TXV starving or flooding c...

Page 114: ...be not installed on water outlet drain Water freezing behind evaporator Plastic extrusions and gaskets not securely mounted to the evaporator Low water pressure 20 psig min Loss of water from sump area Clogged water distribution tube Dirty defective water fill valve Defective water pump Electrical System Ice thickness probe out of adjustment Ice thickness probe dirty Bin switch closed defective Pr...

Page 115: ...Part Number STH026 2 12 115 This Page Intentionally Left Blank ...

Page 116: ...116 Part Number STH026 2 12 This Page Intentionally Left Blank ...

Page 117: ...hine is in Ice Making cycle or Has a History of Shutting Down Refer to Ice Machine Stops Running Flow Chart SYMPTOM 2 Ice Machine has a Long Freeze Cycle Ice Formation is Thick or Thin Ice Fill on Top or Bottom of Evaporator or Low Production Safety Limit 1 possible Refer to Freeze Cycle Refrigeration System Operational Analysis Table SYMPTOM 3 Ice Machine Will Not Harvest Freeze Cycle is Normal a...

Page 118: ...he ice machine to factory defaults use the following procedure 1 Ensure that the ice machine s power is on 2 Press the Menu button 3 From the Main menu use the Down button to highlight Fact Deflts 4 Press either the Checkmark or right arrow two times to reset the ice machine The display will return to the Set Up menu and the defaults listed below will be in affect Refer to Setup to adjust settings...

Page 119: ...MPTOM 1 ICE MACHINE WILL NOT RUN Yes Are there any lights on or flashing on the control board ICE MACHINE STOPS RUNNING OR HAS A HISTORY OF SHUTTING DOWN No START Indigo_Model_Tech book Page 119 Monday February 20 2012 1 17 PM ...

Page 120: ...hing heartbeat Install the water curtain damper No Refer to display control board diagnostics Replace fuse determine which component caused fuse to blow Refer to display control board diagnostics No Yes Indigo_Model_Tech book Page 120 Monday February 20 2012 1 17 PM ...

Page 121: ...tton to start ice making does safety limit light flash Is magnet on the water curtain damper Yes Replace the water curtain damper No Yes No Yes Refer to bin switch diagnostics Indigo_Model_Tech book Page 121 Monday February 20 2012 1 17 PM ...

Page 122: ...zed the fuse is okay 4 Verify all bin switches function properly A defective bin switch can falsely indicate a full bin of ice 5 Perform control board display board and touch screen diagnostics Be sure steps 1 6 were followed thoroughly Intermittent problems are not usually related to the control board Warning High line voltage is applied to the control board terminals 55 and 56 at all times Remov...

Page 123: ... Test for 24 vac at terminals C V Replace transformer if 24 vac is not present 3 Verify the low pressure control is closed by testing for 24 vac terminals C LPC 4 Verify wires are intact and ice machine is calling for cooling by testing for 24 vac terminals C HPC1 5 Verify the high pressure control is closed by testing for 24 vac at the contactor coil terminals 6 Verify the contactor contacts are ...

Page 124: ... and other references to eliminate refrigeration components not listed on the tables and external items and problems which can cause good refrigeration components to appear defective The tables list five different defects that may affect the ice machine s operation NOTE A low on charge ice machine and a starving expansion valve have very similar characteristics and are listed under the same column...

Page 125: ... found it is not necessary to complete the remaining procedures Step 2 Enter Checkmarks Each time the actual findings of an item in the Operational Analysis column matches the published findings on the table enter a Checkmark Example Freeze cycle suction pressure is determined to be low Enter a Checkmark in the low column Step 3 Add the Checkmarks listed under each of the four columns Note the col...

Page 126: ...ctual 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 Installation and Water System All installation and water related problems must be corrected before proceeding with chart Ice formation is Ice formation normal Ice formation normal Ice formation normal Indigo_Model_Tech book Page 126 M...

Page 127: ...te all non refrigeration problems Stops on safety limit 1 or 2 Stops on safety limit 1 or 2 Stops on safety limit 1 or 2 Stops on safety limit 1 Freeze Cycle I Model QuietQube Single Expansion Valve Operational Analysis 1 2 3 4 Indigo_Model_Tech book Page 127 Monday February 20 2012 1 17 PM ...

Page 128: ...valve is greater than 10 F 12 2 C at the end of the freeze cycle Suction line temp at the suction shut off valve is less than 10 F 12 2 C at the end of the freeze cycle Suction line temp at the suction shut off valve is greater than 10 F 12 2 C at the end of the freeze cycle Final Analysis Enter total number of boxes Harvest Valve Low On Charge Or Refrigerant Overcharge Compressor I Model QuietQub...

Page 129: ...hed 24 hour ice production __________ Calculated actual 24 hour ice production __________ NOTE The ice machine is operating properly if the ice fill pattern is normal and ice production is within 10 of charted capacity Installation and Water System All installation and water related problems must be corrected before proceeding with chart Indigo_Model_Tech book Page 129 Monday February 20 2012 1 17...

Page 130: ... 1 or 2 Stops on safety limit 1 Freeze Cycle Discharge Pressure If discharge pressure is High or Low refer to Freeze cycle high or low discharge pressure problem checklist page 141 page 142 to eliminate problems and or components not listed on Twin Expansion Valve I1470C I1870C I2170C Models Operational Analysis 1 2 3 4 Indigo_Model_Tech book Page 130 Monday February 20 2012 1 17 PM ...

Page 131: ...uction Line Temperature Attach a temperature probe on the suction line within 6 in Suction line temperature at the suction shut off valve is greater than 10 F Suction line temperature at the suction shut off valve is greater than 10 F Suction line temperature at the suction shut off valve is less than 10 F Suction line temperature at the suction shut off valve is greater than 10 F Twin Expansion V...

Page 132: ...it is being serviced but malfunctions later Information provided by the user can help the technician start in the right direction and may be a determining factor in the final diagnosis Ask these questions before beginning service When does the ice machine malfunction night day all the time only during the Freeze cycle etc When do you notice low ice production one day a week every day on weekends e...

Page 133: ...er temp entering sump trough ____ 2 Refer to the appropriate 24 Hour Ice Production Chart starting on page 221 Use the operating conditions determined in step 1 to find published 24 Hour Ice Production _____ Times are in minutes Example 1 min 15 sec converts to 1 25 min 15 seconds 60 seconds 25 minutes Weights are in pounds Example 2 lb 6 oz converts to 2 375 lb 6 oz 16 oz 375 lb 3 Perform an ice ...

Page 134: ...on 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 If they match closely determine if Another ice machine is required More storage capacity is required Relocating the existing equipment to lower the load conditions is required Contact the local Manitowoc Distributor for information on available options and a...

Page 135: ...the ice machine Condenser is dirty Clean the condenser Water filtration is plugged if used Install a new water filter Water drains are not run separately and or are not vented Run and vent drains according to the Installation Manual Line set is improperly installed Reinstall according to the Installation Manual Lineset is the incorrect size Refer to Installation Use and Care Manual ...

Page 136: ...etween 35 F 2 C and 90 F 32 C If too hot check the hot water line check valves in other store equipment Water filtration is plugged if used Install a new water filter Water dump valve leaking during the Freeze cycle Clean replace dump valve as needed Vent tube is not installed on water outlet drain See Installation Instructions Hoses fittings etc are leaking water Repair replace as needed Water fi...

Page 137: ...than on the outlet At the end of the Freeze cycle ice formation at the outlet will be close to or just a bit thinner than ice formation at the inlet The dimples in the cubes at the outlet of the evaporator may be more pronounced than those on the inlet This is normal It is normal for ice thickness to vary up to 1 16 across the surface of the evaporator The ice bridge thickness at the ice thickness...

Page 138: ... the outlet of the evaporator reaches 1 8 in to initiate a harvest but there is no ice formation at all on the inlet of the evaporator 4 No Ice Formation The ice machine operates for an extended period but there is no ice formation at all on the evaporator Evaporator Tubing Routing Routing of the tubing on the back of the evaporator determines the ice fill pattern failure mode The evaporator outle...

Page 139: ...l first be visible near the middle of the evaporator IB1000 has two expansion valves and two evaporator outlets Fill pattern varies depending on which circuit is affected Extremely Thin at the Evaporator Outlet will first be visible either 1 4 or 3 4 of the way down the evaporator Extremely Thin at the Evaporator Inlet will show at the bottom of the evaporator or 3 4 of the way down depending on t...

Page 140: ...discharge pressures Freeze Cycle______ Harvest Cycle______ 3 Perform an actual discharge pressure check 4 Compare the actual discharge pressure step 3 with the published discharge pressure step 2 The discharge pressure is normal when the actual pressure falls within the published pressure range for the ice machine s operating conditions It is normal for the discharge pressure to be higher at the b...

Page 141: ...charge air recirculation Defective fan cycling control page 185 Defective fan motor Defective head pressure control valve Water Condenser Low water pressure 20 psig 138 kPa min High inlet water temperature 90 F 32 C max Dirty condenser Dirty Defective water regulating valve Water regulating valve out of adjustment Other Overcharged Non condensable air in system Wrong type of refrigerant Non Manito...

Page 142: ...cklist page 135 Air Cooled Condensers Defective head pressure control valve won t bypass page 198 Defective fan cycle control stuck closed page 185 Water Cooled Condensers Water Regulating Valve out of adjustment Water Regulating Valve Defective Other Undercharged Wrong type of refrigerant Non Manitowoc components in system Liquid line component restricted ...

Page 143: ...e to the published freeze cycle time NOTE Analyze discharge pressure before analyzing suction pressure High or low discharge pressure may be causing high or low suction pressure Procedure Step 1 Determine the ice machine operating conditions Temperature of air entering the condenser Look up and determine the published suction pressure 2 Perform an actual suction pressure check at the beginning mid...

Page 144: ...s affecting suction pressure refer to Freeze Cycle Discharge Pressure High Checklist page 141 Improper Refrigerant Charge Overcharged also see Freeze Cycle Discharge Pressure High Checklist page 141 Wrong type of refrigerant Non condensable in system Components Harvest valve leaking continue the table TXV flooding continue the table Defective compressor continue the table Other Non Manitowoc compo...

Page 145: ...d is affecting low side refer to Freeze Cycle Discharge Pressure Low Checklist page 142 Improper Refrigerant Charge Undercharged Wrong type of refrigerant Other Non Manitowoc components in system Improper water supply over evaporator refer to Water System Checklist page 136 Restricted plugged liquid line drier Restricted plugged tubing in suction side of refrigeration system TXV starving continue ...

Page 146: ...ough the circuit board has initiated a Harvest cycle suction and discharge pressures remain unchanged from the Freeze cycle The ice machine will remain in the Harvest cycle for 3 5 minutes then initiate a new Freeze cycle Valve remains open in the Freeze cycle Symptoms of a harvest valve remaining partially open during the Freeze cycle can be similar to symptoms of an expansion valve float valve o...

Page 147: ...ity temperature meter capable of taking temperature readings on curved copper lines 2 Attach the temperature meter thermocouple to the copper suction line within 6 of the shut off valves 3 Monitor the suction line temperature during the last three minutes of the freeze cycle and record the low event 4 Use this with other information gathered on the Refrigeration Component Analysis Chart to determi...

Page 148: ... Do not add charge to remote condensing unit models The symptoms of a QuietQube condensing unit low on charge will result in a safety limit 1 in cool ambient temperatures Check the liquid line temperature at the ice machine The liquid line will be hot with a normal or below normal head pressure in freeze when the ice machine is low on refrigerant 2 Find the refrigerant leak The ice machine must op...

Page 149: ...the expansion valve to flood Check bulb mounting insulation etc before changing the valve Verify refrigerant amount is correct by weighing recovered refrigerant before replacing a TXV COLUMN 4 COMPRESSOR Replace the compressor To receive warranty credit the compressor ports must be properly sealed by crimping and soldering them closed ...

Page 150: ... is on the evaporator preventing the ice slab from releasing Follow the appropriate flow chart in Troubleshooting to determine the cause of the problem A manual cleaning procedure must always be performed when this problem is encountered Normal sheet of cubes at the end of the harvest cycle Ice is difficult to remove from the evaporator by hand Once removed the back of the cubes are square and sho...

Page 151: ...bes Are Not Melted Afte Ice Machine Will Not Harvest Freeze Cycle Is Normal and Ice Cubes Are Not Melted After Harvest START Is the Harvest Valve s Energized Refer to Sequence of Operation Wiring Diagram NO ICE MACHINE WILL NOT HARVEST FREEZE CYCLE NORMAL CUBES ARE NOT MELTED Indigo_Model_Tech book Page 151 Monday February 20 2012 1 17 PM ...

Page 152: ...s Head Pressure low Suction Pressure low in harvest Replace Harvest Valve Is Head Pressure high Suction Pressure low in harvest Not a refrigeration problem Clean Inspect Evaporator Indigo_Model_Tech book Page 152 Monday February 20 2012 1 17 PM ...

Page 153: ...mperature of Liquid Line at rear of Head Section Feel temperature of Liquid Line Backseat Liquid Line Shut Off Valve or Replace Look for Restriction Cold Cold Feels Hot Indigo_Model_Tech book Page 153 Monday February 20 2012 1 17 PM ...

Page 154: ...ster Diagnostics Headmaster is not in 100 Bypass Headmaster is in 100 Bypass Refrigerant Charge is Incorrect Refrigerant Charge is Correct IMPORTANT Weigh charge as you are recovering if incorrect evacuate recharge if correct then proceed Indigo_Model_Tech book Page 154 Monday February 20 2012 1 17 PM ...

Page 155: ...NSING UNITS Ice Machine Will Not Harvest Freeze Cycle Is Normal and Ice Cubes Are Melted After Harvest Is Ice Machine level YES NO Level Ice Machine Back of cubes are melted at end of harvest cycle START Indigo_Model_Tech book Page 155 Monday February 20 2012 1 17 PM ...

Page 156: ...156 YES NO Is the evaporator dirty or damaged Dry evaporator first then check Indigo_Model_Tech book Page 156 Monday February 20 2012 1 17 PM ...

Page 157: ...Part Number STH026 2 12 157 This Page Intentionally Left Blank ...

Page 158: ...158 Part Number STH026 2 12 This Page Intentionally Left Blank ...

Page 159: ...ike a heartbeat The two green lights are located on the top right corner of the control board Display Diagnostics 1 Micro light flashes and display light is off 2 Disconnect and reconnect both ends of the communication cable running between the control board and the back of the display module 3 Press the power button on the display and watch the green Display light on the control board A Display l...

Page 160: ...llowing keystrokes on the display Press Menu scroll down to Service and press right arrow Scroll down to Diagnostics and press right arrow Display reads Control Board press right arrow Display reads Self Check press right arrow to start control board test The control board performs a self test As the test progresses the display will show Checkmarks at the top left of the display screen When the fi...

Page 161: ...st press the right arrow 4 Test the functionality of all buttons on the touch pad NOTE Pushing the power button will start and stop the ice machine Testing it last will allow the ice machine to continue running a freeze cycle As you press the buttons the first letter of the corresponding word will flash indicating the push button is operating correctly Press the right arrow 5 times rapidly to exit...

Page 162: ...ss the right arrow and select Diagnostics Display reads Control Board press right arrow Scroll down to enbl relays and press right arrow to start control board test 3 The control board will energize all relays and the red light next to the relay The red light indicates the relay coil is energized 4 Test for line voltage at the individual components A Line voltage is present and the component is no...

Page 163: ...ws Vista Computers 1 Insert USB flash drive your computer may indicate Found New Hardware follow the prompts to install the USB flash drive USB flash drive may auto play Close auto play window 2 Press Windows Key and E key simultaneously to access windows explorer 3 Right click on your USB Flash Drive 4 Left click on Format 5 Verify or select the settings below USB flash drive capacity 2 GB or les...

Page 164: ...n OK Left click on Disk Management 3 Verify USB flash drive capacity is 2 GB or less 4 Right click on the USB flash drive then left click on Format from the drop down list 5 Verify or select the settings below Volume Label is Optional Rename if desired File System Fat32 Allocation Unit Size must be 512 MB Deselect Perform A Quick Format no checkmark 6 Left click on OK you will receive a warning Fo...

Page 165: ... 4 Press the Down arrow until Service is highlighted 5 Press the Checkmark The Service menu will be displayed 6 Press the Down arrow until USB Setup is highlighted 7 Press the Checkmark USB Stick will appear highlighted 8 Press the Checkmark again A submenu with Download Frm Download Firmware appears 9 Ensure that Download Frm is highlighted and press the Checkmark A display of instructions will a...

Page 166: ...ion number RT Harvest Compressor LT Harvest Pump Water Dump Display Light Micro Light Clean Light Harvest Light SL 1 Light SL 2 Light Fuse Thermistors T1 T2 T3 T4 Display RS485 Bin LED Water Level Probe AuCS Remote CVD LuminIce Transformer Battery Bin Switches Bin Thermostat USB Ice Thickness Probe Light Water Level Probe Light Right Bin Switch Light Left Bin Switch Light Dump Valve HPC Ice Thickn...

Page 167: ...he Service menu will be displayed 5 Press the Down arrow until USB Setup is highlighted 6 Press the Checkmark USB Stick will appear highlighted 7 Press the Checkmark again A submenu with Export ALL and Export Setup appears 8 Highlight Export ALL or Export Setup depending on your requirements and press the Checkmark A display of instructions will appear 9 Follow these on screen instructions to A In...

Page 168: ... RS485 Bin LED Water Level Probe AuCS Remote CVD LuminIce Transformer Battery Bin Switches Bin Thermostat USB Ice Thickness Probe Light Water Level Probe Light Right Bin Switch Light Left Bin Switch Light Dump Valve HPC Ice Thickness Probe Water Pump Compressor L1 Not Used L2 Water Inlet Valve Right Harvest Valve Left Harvest Valve Dump Valve Relay Lights V C LPC HPC1 HPC2 CVD Contactor USB Connec...

Page 169: ...curtain ice dampers closed the fuse is good 2 Remove the fuse Check for continuity across the fuse with an ohmmeter 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 Warning Disconnect electrical power to the entire ice machine before procee...

Page 170: ...machine shuts off The ice machine remains off until enough ice is removed from the storage bin to allow the sheet of cubes to drop clear of the water curtain ice dampers As the water curtain ice dampers swing back to the operating position the bin switch closes and the ice machine restarts provide the 3 minute delay has expired SPECIFICATIONS The bin switch is a magnetically operated reed switch T...

Page 171: ...aporator models DIAGNOSTICS 1 Verify bin switch damper and damper magnet are in place Press the Menu button Scroll down to Service and press right arrow Scroll down to Diagnostics and press right arrow Scroll down to Inputs and press right arrow to display curtain switch readings Curt SW1 Curt SW2 etc 2 Open and close the ice damper s repeatedly while observing the display and control board lights...

Page 172: ...he power button and observe the display and control board lights A Curtain switch closes control board light energizes and ice machine starts Replace bin switch B Curtain switch remains open and control board light is off Verify procedure was correctly followed Test all switches on dual evaporator ice machines Replace control board ...

Page 173: ...n the event of a water level probe failure this feature limits the water inlet valve to a six minute on time 8 minutes for dual evaporator models Regardless of the water level probe input the control board automatically shuts off the water inlet valve when the time limit is exceeded Freeze Cycle Operation During the Freeze cycle the water inlet valve energizes and de energizes in conjunction with ...

Page 174: ...t power If water continues to flow verify water pressure is below 80 psig before replacing the water inlet valve Step 3 Check water level probe mounting and verify secure wiring connections at the probe and control board Step 4 Scroll to Service Diagnostics Inputs and press down arrow until Wtr Low and Wtr High are displayed No is displayed Control board is not receiving a sensing water signal Con...

Page 175: ...ace control board WATER TROUGH OVERFILLING CONTINUED Step 6 Water level probe wires 2 3 jumpered at the control board connector Is Water Flowing into the Water Trough The Water Level Light Is The Water Inlet Valve Solenoid Coil Is Cause No On De energized The interconnecting wire or water level probe is causing the problem Ohm then clean or replace the water level probe or wire Yes Off Energized T...

Page 176: ...tr High are displayed A Yes is displayed Control board is receiving a sensing water signal Proceed to step 3 B No is displayed Control board is not receiving a sensing water signal Proceed to Control Board Diagnostics page 160 Step 3 Disconnect water level probe observe LCD display text A No is displayed Clean the water level probe and test interconnecting wiring B Yes is displayed Refer to Contro...

Page 177: ...tem incorporates a freeze time lock in feature This prevents the ice machine from short cycling in and out of harvest The control board locks the ice machine in the freeze cycle and a harvest cycle can not start for six minutes Maximum Freeze Time The control system includes a built in safety which will automatically cycle the ice machine into harvest after 60 minutes in the freeze cycle Maximum T...

Page 178: ... should be about 1 8 in 32 mm thick 2 If adjustment is necessary turn the ice thickness probe adjustment screw clockwise to increase bridge thickness or counterclockwise to decrease bridge thickness Set a 9 32 gap between the ice thickness probe and evaporator as a starting point Then adjust to achieve 1 8 ice thickness 3 Make sure the ice thickness probe wire and the bracket do not restrict movem...

Page 179: ... CYCLES INTO HARVEST BEFORE ICE CONTACTS THE ICE THICKNESS PROBE 1 Reboot the control board by disconnecting and reconnecting line voltage to the ice machine 2 Verify ice thickness probe gap is approximately 9 32 7 mm 3 Wait six minutes Ice Machine remains in freeze cycle Allow ice machine to run Ice machine cycles into harvest Replace ice thickness probe to determine if problem is resolved If pro...

Page 180: ...reeze cycle will start after the manual harvest cycle is complete 1 Reboot the control board by disconnecting and reconnecting line voltage to the ice machine 2 Verify ice thickness probe gap is approximately 9 32 7 mm 3 Wait for ice to contact the ice thickness probe Ice Machine cycles into harvest normally Allow ice machine to run Ice machine will not cycle into harvest Replace ice thickness pro...

Page 181: ...point the ice machine attempts a restart If the HPCO is closed the ice machine will continue to run If the HPCO remains open after the 60 minute delay or reopens when the compressor starts the ice machine will start another 60 minute delay period The ice machine will lockout after 10 failed attempts 1 Machine is off and the display indicates Delay XX min HPCO Active 2 Machine is running and the di...

Page 182: ...ut in find root cause problem 3 Depending on timing either wait for the delay period to end or start a new freeze cycle The ice machine will go to an initial start sequence When the compressor relay closes the control board checks the HPCO A HPCO is open Another 60 minute delay period starts B HPCO closed A 3 5 minute harvest cycle starts followed by an ice making cycle 4 Run the system to see if ...

Page 183: ...ne time event it may be intermittent and caused by conditions around the unit changing For example High ambient temperature water turned off to condenser water cooled unit etc 3 Run the system to see if the control trips at the rated pressure If HPCO opens at a pressure significantly lower than the control setting of 440 psig replace the HPCO 4 If the control opens at the correct pressure 10 lbs f...

Page 184: ...ow setpoint CHECK PROCEDURE 1 Connect manifold gauges at suction and discharge access valves and verify refrigerant pressure exceeds LPCO cut in 2 Navigate to LPCO input on display Press the Menu button Scroll down to Service and press right arrow Scroll down to Diagnostics and press right arrow Scroll down to Inputs and press right arrow to display LPCO reading 3 LPCO display indicates A Open Rep...

Page 185: ...ings are not open or grounded and fan spins freely 2 Connect manifold gauges to ice machine 3 Hook voltmeter in parallel across the fan cycle control leaving wires attached 4 Refer to chart below Specifications Model Cut In Close Cut Out Open ICVD0695 ICVD0895 ICVD1095 ICVD1195 ICVD1295 ICVD1495 ICVD1895 ICVD2095 250 5 1723 kPa 34 17 23 bar 34 200 5 1517 kPa 34 15 17 bar 34 FCC Setpoint Reading Sh...

Page 186: ...60 70 98 930 10 20 50 68 98 930 62 015 20 30 68 86 62 015 39 695 30 40 86 104 39 695 25 070 40 50 104 122 25 070 17 481 50 60 122 140 17 481 11 860 60 70 140 158 11 860 8 1900 70 80 158 176 8 1900 5 7530 80 90 176 194 5 7530 4 1015 90 100 194 212 4 1015 2 9735 100 110 212 230 2 9735 2 1885 110 120 230 248 2 1885 1 6290 120 130 248 266 1 6290 1 2245 130 140 266 284 1 2245 0 9319 140 150 284 302 0 9...

Page 187: ...mperature sensor located at the outlet of the receiver T3 Single Expansion Valve Models Suction line temperature sensor located at the inlet of the evaporator T3 Dual Evaporator Models Suction line temperature sensor located at the outlet of evaporator 1 T4 Single Expansion Valve Models Suction line temperature sensor located at the outlet of the evaporator T4 Dual Evaporator Models Suction line t...

Page 188: ... Defrost W 1 T3 T4 T2 T1 Self Contained d Water Cooled d Hot Gas Defrost A W 48 48 T4 T3 T2 T1 Self Contained d Air Coo ooled Water Cooled d Hot Gas Defrost N 1 T3 T4 T2 Spl plit System Remote Condenser Hot Gas Defrost N 48 48 T4 T3 T2 T1 Spl plit System Remote Condenser Hot Gas Defrost C 1 T3 T4 T1 T2 Spl plit System Remote Condensing Un Unit Coo ool Vapor Defrost C 2 5 T4 T3 T1 T2 Spl plit Syste...

Page 189: ...F 246 C Thermistor Test 1 Disconnect thermistor from control board and measure resistance 2 Measure temperature at the thermistor 3 Compare measured resistance temperature readings to resistance temperature relationship chart A Within 10 of the published resistance value Thermistor is good B Not within 10 of the published resistance value Thermistor is defective Control Board Test 1 Disconnect the...

Page 190: ...es SPECIFICATIONS 115 Volt or 230 Volt matches the ice machine voltage CHECK PROCEDURE 1 The air pump is wired in parallel with the harvest valve Verify the ice machine is in the harvest cycle and the harvest valve is energized 2 If there is voltage at the air pump connector use a volt ohm meter to verify there is no continuity through the motor windings then replace motor ...

Page 191: ...from the compressor terminals 2 The resistance values between C and S and between C and R when added together should equal the resistance value between S and R 3 If the overload is open there will be a resistance reading between S and R and open readings between C and S and between C and R Allow the compressor to cool then check the readings again THREE PHASE COMPRESSORS 1 Disconnect power and rem...

Page 192: ...w while the compressor is trying to start The two likely causes of this are a defective starting component and a mechanically seized compressor To determine which you have 1 Install high and low side gauges 2 Try to start the compressor 3 Watch the pressures closely A If the pressures do not move the compressor is seized Replace the compressor B If the pressures move the compressor is turning slow...

Page 193: ...apacitor Use a capacitor tester when checking a suspect capacitor Clip the bleed resistor off the capacitor terminals before testing If the compressor attempts to start or hums and trips the overload protector check the starting components before replacing the compressor Visual evidence of capacitor failure can include a bulged terminal end or a ruptured membrane Do not assume a capacitor is good ...

Page 194: ...generated by the start winding and opens the contacts as the compressor motor starts The contacts remain open until the compressor is de energized RELAY OPERATION CHECK 1 Disconnect wires from relay terminals 2 Verify the contacts are closed Measure the resistance between terminals 1 and 2 No continuity indicates open contacts Replace the relay 3 Check the relay coil Measure the resistance between...

Page 195: ...ust be cooled before attempting to start the compressor otherwise the PTCR will heat up too quickly and stop current flow through the start winding before the compressor motor reaches full speed NOTE If a PTCR is dropped internal damage can occur to the ceramic PTCR discs The ceramic disc can chip and cause arcing which leads to PTCR failure Since there is no way to open the PTCR in order to deter...

Page 196: ... change a PTCR just because it is hot 2 Wait at least 10 minutes for the PTCR to cool to room temperature 3 Remove the PTCR from the ice machine 4 Measure the resistance of the PTCR as shown The resistance reading must be between Two Terminal PTCR 18 to 40 ohms Three Terminal PTCR 8 to 22 ohms Three Terminal PTCR Measure Resistance At Ends Two Terminal PTCR Leave Jumper Wire Attached Measure Resis...

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Page 198: ...nctions at night and or fails whenever the outdoor temperature drops A Safety limit is stored in control board memory Refrigerant loss and ambient temperature are directly related to each other As the ambient temperature drops more refrigerant is stored in the condenser When the refrigerant charge and ambient temperature create an undercharge of refrigerant in the freeze cycle the receiver dip tub...

Page 199: ...eceiver tank to enter the evaporator The refrigerants change of state from vapor to liquid releases the heat necessary for the Harvest cycle Opening the harvest valve causes a drop in discharge pressure The discharge pressure will drop below the condenser fan cycling control setpoint and the condenser fan motor cycles off at ambient temperatures above 110 F 43 C the condenser fan motor remains ene...

Page 200: ...fer to the chart NOTE A head pressure control valve that will not bypass will function properly with condenser air temperatures of approximately 70 F 21 C or above When the temperature drops below 70 F 21 C the head pressure control valve fails to bypass and the ice machine malfunctions Lower ambient conditions can be simulated by rinsing the condenser with cool water during the freeze cycle Condi...

Page 201: ...toms Safety limit 1 or Safety limit 2 in control board memory Harvest cycle suction pressure is low Harvest cycle discharge pressure is low Liquid line entering receiver feels warm to hot in the freeze cycle Overcharge Symptoms Safety limit 2 in control board memory Harvest cycle suction pressure is low Harvest cycle discharge pressure is normal Freeze cycle time suction and discharge pressure are...

Page 202: ...tures above 32 F but fails at temperatures below 32 F Harvest cycle suction pressure is low Harvest cycle discharge pressure is normal or slightly low Procedure 1 Freeze cycle operation must be normal before diagnosing the headmaster in the harvest cycle Refer to Cycle Times 24 hr Ice Production Refrigerant Pressure Chart 2 Allow the ice machine to run a normal freeze cycle do not initiate an earl...

Page 203: ...er feel the same 30 seconds into the harvest cycle The headmaster is functioning correctly The compressor discharge line is noticeably warmer than the liquid line to the ice machine receiver Headmaster valve is not bypassing 100 Replace headmaster valve Refrigerant Flow No F lo w Step 3 Details Grasp Here with Hands to Compare Temperatures LIQUID LINE FROM CONDENSER ...

Page 204: ... suction accumulator empties within the first 5 minutes of the freeze cycle When the refrigeration affect ends liquid refrigerant has been removed the suction line between the accumulator and compressor will increase in temperature The suction line temperature increases 20 plus degrees within 2 minutes after the liquid has been removed The time needed to remove the liquid refrigerant will vary wit...

Page 205: ... recharging Use only a Manitowoc OEM liquid line filter drier to prevent voiding the warranty Warning Recovery evacuation of a QuietQube remote system requires connections at five points for complete system recovery evacuation Check valves are located in the ice machine head section and the ICVD condensing unit Five point requires connections between the compressor and suction filter access valve ...

Page 206: ...n the check valve in the liquid line and the liquid line solenoid valve Warning Recovery evacuation of a QuietQube remote system requires connections at three points for complete system recovery evacuation Check valves are located in the ice machine head section and the ICVD condensing unit Three point requires connections between the receiver access valve and the high and low side access valves o...

Page 207: ...and low side on the manifold gauge set 4 Perform recovery or evacuation A Recovery Operate the recovery unit as directed by the manufacturer s instructions B Pressure test the system C Evacuation prior to recharging Evacuate to 500 microns Then allow the pump to run for an additional hour 5 Refer to Charging Procedures CONNECTIONS MUST BE MADE AT THREE POINTS FOR COMPLETE REFRIGERANT RECOVERY ON A...

Page 208: ...rge through valves on back of ice making head or through valves on suction filter 5 Run the ice machine in the freeze cycle 6 Close the receiver service valve in the ice machine head section 7 Disconnect the manifold gauge set from the liquid line shut off valve 8 Open the high and low side valves on the manifold gauge set Any refrigerant in the lines will be pulled into the low side of the system...

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Page 210: ...agnostic tool These devices sample refrigerant eliminating the need to take an oil sample Follow the manufacturer s directions If a refrigerant test kit indicates harmful levels of contamination or if a test kit is not available inspect the compressor oil 1 Remove the refrigerant charge from the ice machine 2 Remove the compressor from the system 3 Check the odor and appearance of the oil 4 Inspec...

Page 211: ...hows contamination Leak in water cooled condenser No burnout deposits in open compressor lines Mild contamination cleanup procedure Mild Compressor Burnout symptoms Oil appears clean but smells acrid Refrigeration test kit or acid oil test shows harmful acid content No burnout deposits in open compressor lines Mild contamination cleanup procedure Severe Compressor Burnout symptoms Oil is discolore...

Page 212: ...A Pull vacuum to 1000 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 5 psig 35 kPa 35 bar B Pull vacuum to 500 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 5 psig 35 kPa 35 bar C Change the vacuum pump oil D Pull vacuum to 500 microns Run the vacuum pump for 1 hour NOTE You may perform a standing vacuum test ...

Page 213: ...tion and discharge lines at compressor 4 Sweep through the open system with dry nitrogen 5 Install a new compressor and new start components 6 Install a suction line filter drier with acid and moisture removal capability Place the filter drier as close to the compressor as possible 7 Install an access valve at the inlet of the suction line drier 8 Install a new liquid line drier and suction filter...

Page 214: ...ck You should use an electronic leak detector after system charging to be sure there are no leaks 10 Charge the system with the proper refrigerant to the nameplate charge 11 Operate the ice machine for one hour Then check the pressure drop across the suction line filter drier A If the pressure drop is less than 1 psig 7 kPa 7 bar the filter drier should be adequate for complete cleanup B If the pr...

Page 215: ... tubing as far from the pressure control as feasible See the figure on next page Clamp down on the tubing until the pinch off is complete 3 Cut the tubing of the defective component with a small tubing cutter 4 Solder the replacement component in place Allow the solder joint to cool 5 Remove the pinch off tool 6 Re round the tubing Position the flattened tubing in the proper hole in the pinch off ...

Page 216: ...216 Part Number STH026 2 12 USING PINCH OFF TOOL ...

Page 217: ...the inlet and outlet ends This is very important because ice machines have a back flushing action that takes place during every Harvest cycle A Manitowoc filter drier has high moisture and acid removal capability The size of the filter drier is important The refrigerant charge is critical Using an improperly sized filter drier will cause the ice machine to be improperly charged with refrigerant Im...

Page 218: ...n 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 ...

Page 219: ...bs 4 88kg 0 50 ft 0 15 M 12 25 5 55 kg 51 100 ft 15 30 M I0870C ICVD0895 11 lbs 5 kg 0 50 ft 0 15 M 15 lbs 6 8 kg 51 100 ft 15 30 M IB0890C ICVD0895 11 lbs 5 kg 0 50 ft 0 15 M 13 lbs 5 9 kg 51 100 ft 15 30 M I1070C ICVD1095 10 lbs 4 5 kg 0 50 ft 0 15 M 12 lbs 5 44 kg 51 100 ft 15 30 M IB1090C ICVD1195 12 lbs 5 44 kg 0 50 ft 0 15 M 14 lbs 6 35 kg 51 100 ft 15 30 M I1470C ICVD1495 12 75 lbs 5 8 kg 0...

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Page 221: ...Refer to Symptom 2 Operational Analysis Table page 122 for the list of data that must be collected for refrigeration diagnostics This list includes before beginning service ice production check installation visual inspection water system checklist ice formation pattern safety limits comparing evaporator inlet outlet temperatures discharge and suction pressure analysis Zero out manifold gauge set b...

Page 222: ... 12 6 12 2 13 9 13 4 15 3 110 43 12 0 13 8 13 4 15 3 14 9 17 0 1Times in minutes Dice cube Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 650 540 480 90 32 560 505 475 100 38 530 485 445 110 43 490 445 405 1Based on average ice slab weight of 4 60 5 20 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure p...

Page 223: ...38 10 2 11 8 11 1 12 8 12 2 13 9 110 43 11 0 12 6 12 0 13 8 13 2 15 1 1Times in minutes Dice cube Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 640 600 560 80 27 615 575 535 90 32 595 555 515 100 38 565 525 485 110 43 530 490 450 1Based on average ice slab weight of 4 60 5 20 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressur...

Page 224: ...18 2 110 43 14 9 16 9 15 8 18 0 16 9 19 3 1Times in minutes Dice cube Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 665 610 555 90 32 590 580 505 100 38 550 510 475 110 43 510 480 450 1Based on average ice slab weight of 5 75 6 50 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressur...

Page 225: ... 2 110 43 13 0 14 9 14 0 16 0 14 9 17 0 1Times in minutes Dice cube Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 825 770 720 90 32 750 675 640 100 38 650 600 560 110 43 570 535 505 1Based on average ice slab weight of 5 75 6 50 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure psig Suction Pressure psig Discharge Pressure ...

Page 226: ...0 38 9 5 11 3 11 4 13 5 13 1 15 5 110 43 9 9 11 8 12 0 14 2 13 9 16 4 1Times in minutes Dice cube Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 950 800 710 80 27 900 760 680 90 32 860 725 645 100 38 810 690 610 110 43 780 660 580 1Based on average ice slab weight of 6 2 7 2 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pressure ...

Page 227: ...100 38 12 0 13 8 12 9 14 8 13 7 15 7 110 43 13 1 15 0 13 9 16 0 14 9 17 1 1Times in minutes Dice cube Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 1000 930 860 80 27 930 860 810 90 32 870 790 760 100 38 800 750 710 110 43 740 700 660 1Based on average ice slab weight of 7 5 8 5 lb Air Temp Entering Condenser F C Freeze Cycle Harvest Cycle Discharge Pres...

Page 228: ...14 5 17 2 1Times in minutes Dice cube Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 1330 1235 1080 90 32 1190 1115 970 100 38 1110 980 910 110 43 1045 920 855 1Ice slab weight of one harvest cycle 12 0 lb to 14 0 lb 6 0 to 7 0 lbs per evaporator 5 44 kg to 6 35 kg 2 72 to 3 18 kg per evaporator 230 50 1 is approximately 12 lower than 230 60 1 Air Temp En...

Page 229: ... 14 3 15 6 1Times in minutes Dice cube Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 1715 1520 1410 90 32 1520 1375 1240 100 38 1415 1250 1160 110 43 1320 1160 1075 1Ice slab weight of one harvest cycle 15 5 lb to 16 75 lb 7 75 8 38 lb per evaporator 7 0 kg to 7 6 kg 3 5 to 3 8 kg per evaporator 230 50 1 is approximately 12 lower than 230 60 1 Air Temp E...

Page 230: ...1Times in minutes Dice cube Air Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 20 to 70 29 to 21 1835 1685 1590 80 27 1780 1590 1495 90 32 1640 1555 1400 100 38 1590 1400 1305 110 43 1495 1305 1210 1Ice slab weight of one harvest cycle 15 5 lb to 16 75 lb 7 75 8 38 lb per evaporator 7 0 kg to 7 6 kg 3 5 to 3 8 kg per evaporator 230 50 1 is approximately 12 lower than 230 60 1 ...

Page 231: ...ber page 15 to reference the correct diagrams WIRING DIAGRAM LEGEND The following symbols are used on all of the wiring diagrams Internal Compressor Overload Some models have external compressor overloads Fan Motor Run Capacitor Some models do not incorporate fan motor run capacitor Wire Number Designation The number is marked at each end of the wire Multi Pin Connection Electrical Box Side Compre...

Page 232: ...mber STH026 2 12 ALL ICVD MODELS INTERCONNECTING WIRING V C LPC HPC1 HPC2 24V C HPCO Detection LPCO Detection Ice Machine iCVD Relay iCVD Condensing Unit LPCO HPCO 24 Volt Contactor Coil 230V 24V Transformer L1 L2 ...

Page 233: ...Part Number STH026 2 12 233 I0670C I0870C I1070C I1270C QuietQube Remote Air cooled 1 3 Ph ...

Page 234: ...234 Part Number STH026 2 12 IB0690C IB0890C IB1090C QuietQube Remote Air cooled 1 3 Ph ...

Page 235: ...Part Number STH026 2 12 235 II1400 I1800 I2170 QuietQube Remote Air cooled 1 3 Ph ...

Page 236: ...236 Part Number STH026 2 12 ICVD2095 QuietQube Remote Air cooled 3 Ph ...

Page 237: ...3 T4 Display RS485 Bin LED Water Level Probe AuCS Remote CVD LuminIce Transformer Battery Bin Switches Bin Thermostat USB Ice Thickness Probe Light Water Level Probe Light Right Bin Switch Light Left Bin Switch Light Dump Valve HPC Ice Thickness Probe Water Pump Compressor L1 Not Used L2 Water Inlet Valve Right Harvest Valve Left Harvest Valve Dump Valve Relay Lights V C LPC HPC1 HPC2 CVD Contacto...

Page 238: ...SV SUCTION SHUT OFF VALVE HEAT EXCHANGER CHECK VALVE HEAD PRESSURE CONTROL VALVE ACCUMULATOR TXV HARVEST VALVE COMPRESSOR EVAPORATOR LIQUID LINE SHUT OFF VALVE CONDENSER S TRAP REQUIRED 21 OR GREATER RISE DRIER SUCTION LINE FILTER Ice Machine Head Section Condensing Unit ACCESS VALVE CHECK VALVE T1 Thermistor T2 Thermistor T4 Thermistor T3 Thermistor ...

Page 239: ...XCHANGER CHECK VALVE HEAD PRESSURE CONTROL VALVE ACCUMULATOR TXV HARVEST VALVE COMPRESSOR EVAPORATOR LIQUID LINE SHUT OFF VALVE CONDENSER S TRAP REQUIRED 21 OR GREATER RISE DRIER SUCTION LINE FILTER Ice Machine Head Section Condensing Unit ACCESS VALVE CHECK VALVE T1 Thermistor T2 Thermistor T4 Thermistor T3 Thermistor ...

Page 240: ... HEAT EXCHANGER CHECK VALVE HEAD PRESSURE CONTROL VALVE ACCUMULATOR TXV HARVEST VALVE COMPRESSOR EVAPORATOR LIQUID LINE SHUT OFF VALVE CONDENSER S TRAP REQUIRED 21 OR GREATER RISE DRIER SUCTION LINE FILTER Ice Machine Head Section ACCESS VALVE CHECK VALVE TXV HARVEST VALVE ...

Page 241: ...ATOR HEAT EXCHANGER CONDENSER SUCTION FILTER CHECK VALVE RECEIVER DRIER HEAD PRESSURE CONTROL VALVE ACCUMULATOR HARVEST VALVE SUCTION SHUT OFF VALVE EVAPORATOR TXV HARVEST VALVE S Trap Required 21 or Greater Rise RECEIVER ACCESS VALVE CHECK VALVE ACCESS VALVE T1 Thermistor T2 Thermistor T4 Thermistor T3 Thermistor ...

Page 242: ...OR HEAT EXCHANGER CONDENSER SUCTION FILTER CHECK VALVE RECEIVER DRIER HEAD PRESSURE CONTROL VALVE ACCUMULATOR HARVEST VALVE SUCTION SHUT OFF VALVE EVAPORATOR TXV HARVEST VALVE S Trap Required 21 or Greater Rise RECEIVER ACCESS VALVE T1 Thermistor T2 Thermistor T4 Thermistor T3 Thermistor ...

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Page 248: ...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 STH026 2 12 ...

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Manitowoc QuietQube Indigo Series, Technician'S Handbook

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