Manitowoc Welbilt Indigo NXT QuietQube Manual Download Page 122

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Symptom #4

122

Indigo NXT Ice Machine Troubleshooting

Ice Machine Will Not Harvest – Freeze Cycle is Normal and Ice Cubes are Melted After

Harvest.

Near the end of a 3.5 minute harvest cycle the sheet of ice cubes has not dropped.

The sheet of ice may have to be pulled out by hand.

•

Safety Limit #2 possible

•

Refer to Ice Melt-out Flow Chart

Ice Cubes are Melted

After Harvest
(Melt Out)

Summary of Contents for Welbilt Indigo NXT QuietQube

Page 1: ... Welbilt Inc Engineered For Ease Indigo NXT QuietQube Remote Ice Machine Course ID ICE2106 Indigo NXT QuietQube Remote Ice Machine Technical Training 4 hour duration ...

Page 2: ...s 2 Course ID ICE2106 Manitowoc Ice Indigo NXT CVD o Indigo Overview o Installation o Installation Wizard o Menu Navigation o Sequence of Operation o Troubleshooting QuietQube CVD Remote Ice Machines Flow Chart Diagnostics Tips ...

Page 3: ... Welbilt Inc Welbilt Inc Engineered For Ease Overview INDIGO NXT 3 ...

Page 4: ... Welbilt Inc Overview 4 INDIGO NXT Model Number Update Configurations Front Identification Back Identification Rotary Compressors ...

Page 5: ... 263 208 230 60 3 463 460 60 3 ADDITIONAL SPECS M Marine Model P Prison Model Q Coted Coils X Include Luminice Built In H High Pressure Water Reg Valve V Space Maker REFRIGERANT TYPE T R410A F R404A P R290A E R134A TOLEDO ALTERNATIVE COMPRESSOR A Phase one E Phase two Use of the 3 letter ALPHA in each model number to designate Refrigerant Type 5 INDIGO NXT Model Number Definition 2019 2020 Toledo ...

Page 6: ...CUF1000 000015730 S1400 Q1800 S1800 i1400 i1406 i1800 iCVD2096 CVDF2100 iCVD1495 iCVD1496 CVDF1400 iCVD1895 CVDF1800 000015731 K1000N 000016103 Due to Bristol compressors no longer being manufactured Manitowoc Ice has created kits to make replacement compressors straightforward Manitowoc Ice has certain Bristol Compressors in stock to cover replacements However specific models have Copeland or Emb...

Page 7: ... Welbilt Inc Overview 7 INDIGO NXT 48 Wide 30 Wide 22 Wide All three widths come in Air and Water cooled ...

Page 8: ... Welbilt Inc Only the 48 and 30 wide are offered as a Traditional Remote All three widths come in Air and Water cooled Overview 8 INDIGO NXT 48 Wide 30 Wide 22 Wide ...

Page 9: ... Welbilt Inc 30 wide head sections and IB s are available as a Quiet Qube Remote Only the 48 and 30 wide are offered as a Traditional Remote Overview 9 INDIGO NXT 30 Wide 22 Wide ...

Page 10: ... Welbilt Inc Overview Front View 10 INDIGO NXT Top Hinge Manitowoc Ice Logo Front Door Screw top Touch Screen Interface Front Door Screw bottom ...

Page 11: ...t Inc Overview Rear View 11 INDIGO NXT Electrical connection Rear electrical box access Rear Data Plate Ice Making Water label Condenser Water Label Base Drain Label 3 8 Inlet 1 2 outlet Safety Kit Safety Kit ...

Page 12: ... Welbilt Inc Overview Front View with door remove 12 INDIGO NXT Refrigeration Access Control Board Contactor On Off Button Touch Display Display Lock Button Clean Button ...

Page 13: ... Welbilt Inc Overview Rotary Compressor 13 INDIGO NXT Warning Label All Rotary Compressor systems are planned to have a third refrigeration access port added to the liquid line for Charging only ...

Page 14: ... LOW PRESSURE LIQUID LOW PRESSURE VAPOR Rotary Compressor Third Port Liquid Charging Damage may occur when charging liquid into the front discharge line service access port It is recommended that all Liquid charging should be done through the Liquid Line service access Replacement driers will have a Schrader built into the inlet If no liquid line access is available drier install one into the liqu...

Page 15: ...ed Plastic stops Ice Thickness Probe Update 15 INDIGO NXT XXXXXXX 1 7 INCREASE BRIDGE THICKNESS XXXXXXX 1 7 INCREASE BRIDGE THICKNESS Original Indigo Ice Thickness Probe 2019 Indigo NXT ITP added stops to prevent over bending of Hinge Pins ...

Page 16: ... Welbilt Inc Review 16 Overview Model Number Update Refrigerant Type Configurations Front Identification Back Identification Rotary Compressors Ice Thickness Probe Update ...

Page 17: ... Welbilt Inc Welbilt Inc Engineered For Ease QuietQube CVD Installation INDIGO NXT 17 ...

Page 18: ...18 QuietQube CVD Installation Indoor Outdoor NOTE INDIGO NXT CVD Control System does not have Interconnecting Low Voltage Wiring The Compressor and Condenser are located remotely and cycle on and off via a pump down system and Low Pressure cut out ...

Page 19: ...machine start up Check all green ground screws in the control box and verify they are tight before starting the ice machine Wiring for the CVD condensing units should be a solid copper conductor Mount Disconnect Here Removable Panel Ice Machine Voltage Maximum Fuse Circuit Breaker Ice Beverage Model Head Section 115 1 60 230 1 50 15 amp All Non IB Model Head Sections 115 1 60 230 1 50 15 amp CVDF0...

Page 20: ...odate drainage from all drains Proper Installation 20 QuietQube CVD Installation Water Supply Do not Exceed 80 psi Water Inlet 3 8 FPT Drains Ran Separately Dump Valve Drain FPT Install 18 Vent Tubes Base Drain CPVC Ice Machine drains must be run separately ...

Page 21: ... FPT Install 18 Vent Tubes Base Drain CPVC Ice Machine drains must be run separately QQ Model Head Clearance Requirements Model Top Back Sides IF0600C IF0900C IT1200C IF1400C IF1800C IF2100C 5 13 cm 5 13 cm 5 13 cm IBF0620C IBF0820C IBF1020C 2 5 cm 5 13 cm 8 20 cm 2 Top 8 Side 5 Back Service Recommendation 61cm 24 is recommended on top sides for servicing ...

Page 22: ...l Top Back Sides CVDF0600 CVDF0900 CVDT1200 CVDF1400 CVDF1800 CVDF2100 0 0 cm 48 122 cm 48 122 cm Proper Installation 22 QuietQube CVD Installation Service Recommendation 61cm 24 is recommended on top for servicing 48 Back 48 Sides 24 Top recommendation for Servicing ...

Page 23: ...VD Installation Elimination of Transformer Interconnecting Wiring Relocation of Pressure switches outside the electrical box Removable side section to run refrigeration lines through left side vs front Added label Mount Disconnect Here Mount Disconnect Here Removable Panel ...

Page 24: ...on instructions can be found in the install use and care manual or the Technician s Handbook CVD Condensing Unit Electrical Disconnect Liquid LIne Suction Line Ice Machine Head Section Electrical Disconnect Suction Refrigerant Shut off Valve Liquid Refrigerant Shut off Valve Electrical Supply Bin ...

Page 25: ...Rise 35 10 7 m Maximum Drop 15 4 6 m 0 20 0 6 1 m Rise No traps required 21 35 6 4 10 7 m Rise S trap required Available from Manitowoc Maximum Length of Run 100 30 5 m Shorten line set as necessary avoid unwanted traps Important Never Deviate from Required Tubing O D ...

Page 26: ... Welbilt Inc Installing Refrigeration Lines 26 QuietQube CVD Installation Valves remain closed frontseated Wrap valves with wet rag while brazing Purge nitrogen while brazing Ice Machine Head Section ...

Page 27: ...be CVD Installation Before cutting caps off the lines release dry nitrogen charge through access ports and leave open while brazing Line set connections for condensing unit can enter from the left side or front Purge nitrogen while brazing Condensing Unit ...

Page 28: ...VD Installation Evacuate at head section or condensing unit Install micron gauge on the opposite end of system that the vacuum pump is on 500 microns or less Remove valves cores to decrease evacuation time Pressure test with 150 psig 1034 kPa nitrogen ...

Page 29: ... Backseat Liquid Line Shut off Valve Do Not Add Refrigerant to the line set or condenser Ice machine nameplate charge is stored in the receiver Push the On Off Button and start the Ice Making Sequence of operation the refrigeration solenoids energize allowing refrigerant to leave the receiver ...

Page 30: ...denser HPCV Accumulator Suction Filter LLSV Drier TXV Evaporator Comp Suction Line S Trap Rises Over 20 Shut Off Valves Harvest Valve Check Valve Receiver Service Valve Receiver T1 Liquid line entering the Receiver T2 Liquid line leaving the Receiver T3 Evaporator Inlet T4 Evaporator Outlet T1 T2 T3 T4 ...

Page 31: ... Welbilt Inc Review 31 Indigo NXT QuietQube iCVD o Removal of the Interconnecting wiring o Installation o Proper Installation o Line Set lengths o Pressure test o Evacuation o Opening valves ...

Page 32: ... Welbilt Inc Welbilt Inc Engineered For Ease EasyTouch Installation Set Up Wizard INDIGO NXT Ice Machine 32 ...

Page 33: ... Welbilt Inc easyTouch Set Up Wizard 33 INDIGO NXT Installation Set Up Wizard Language Configurations Auto Detection Settings Programing Reminders Water usage Resetting the Set Up Wizard ...

Page 34: ...ontinuous Mode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use Factory D...

Page 35: ...the screen goes to full brightness Optional Ice Program Continuous Mode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water ...

Page 36: ... Program Continuous Mode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use...

Page 37: ...ous Mode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use Factory Default...

Page 38: ...ous Mode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use Factory Default...

Page 39: ...ode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use Factory Defaults Use...

Page 40: ...ional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use Factory Defaults Use Less Reverse Osmosis Use More Ice ...

Page 41: ...Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use Factory Defaults Use Less Rev...

Page 42: ...l Ice Program Continuous Mode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Optio...

Page 43: ...ghtness Optional Ice Program Continuous Mode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Wa...

Page 44: ...ous Mode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use Factory Default...

Page 45: ...Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use Factory Defaults Use Les...

Page 46: ...ptional Ice Program Continuous Mode Time Program Weight Program Optional Cleaning Reminder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage...

Page 47: ...inder Cleaning Sanitizing Optional Clean Air Filter Reminder NOTE This option only appears if the ice machine is a self contained air cooled ice machine driven by model table Optional replacement water Filter Reminder Arctic Pure Manitowoc based off of usage Non Manitowoc water filter based off of time Water Usage Option Use Factory Defaults Use Less Reverse Osmosis Use More Ice Clarity Congratula...

Page 48: ...easy as go resetting the factory default and checking the Require Setup Wizard 1 Press MENU 2 Press RESET DEFAULTS 3 Press RESET FACTORY DEFAULTS 4 Press the right arrow 5 Press Reset Factory Defaults 6 Press the left arrow two times 7 Press the box to the left of REQUIRE SETUP WIZARD Congratulations Setup Wizard is Reset and ready to go ...

Page 49: ... Welbilt Inc Review 49 Date Time Auto Detection USB Settings Download Configurations Reminders Water Usage Option How to start the ice machine Set up Wizard Reset ...

Page 50: ... Welbilt Inc Engineered For Ease Menu Navigation Indigo NXT Ice Machines ...

Page 51: ... Welbilt Inc Overview easyTouch User Interface 51 INDIGO NXT NOTE Orange Lock icon s started with the release of 8 6 Software version ...

Page 52: ...r Interface 52 INDIGO NXT Interface Lock button On Off button Clean button Date Time Lock Icon Alert Icon Message Icon Main Menu Luminice Contact Information iAuCS Activation Machine Status Lock Icon in place of Menu Machine Information ...

Page 53: ...ce Water Statistics Data Alert Log Manual Harvest Control Board Replacement Diagnostics Contact Information USB iAUCS Language Reminders Time Date Units Brightness USB Language Reminders Time Date Units Brightness USB Reset Defaults Settings Service Energy Main Menu Machine Information Contact Information Service Locator Edit Contact Information Model Number Ice Machine Serial Number Condenser Ser...

Page 54: ... Welbilt Inc Indigo NXT Menu Navigation Alert 54 Touch Screen Interface Main Menu ...

Page 55: ... Welbilt Inc Indigo NXT Menu Navigation Alert 55 Touch Screen Interface Main Menu ...

Page 56: ... Welbilt Inc Indigo NXT Menu Navigation Messages 56 Touch Screen Interface Main Menu 3 Home Screen Alert Icon number of Alerts Home Screen Message Icon number of Messages 3 ...

Page 57: ...XT Menu Navigation Messages 57 Touch Screen Interface Main Menu Home Screen Luminice Icon Color Status of Bulb Blue Good Red Failure S 3 Home Screen Alert Icon number of Alerts Home Screen Message Icon number of Messages 3 ...

Page 58: ...on will bypass the programmed off time for Ice Now Home Screen Luminice Icon Color Status of Bulb Blue Good Red Failure S 3 Home Screen Alert Icon number of Alerts Home Screen Message Icon number of Messages 3 Home Screen Program button Appears after the ice machine has been programed to run either by time or weight ...

Page 59: ... of Bulb Blue Good Red Failure S 3 Home Screen Alert Icon number of Alerts Home Screen Message Icon number of Messages 3 Home Screen Program button Appears after the ice machine has been programed to run either by time or weight Home Screen iAuCS Icon Only appears when the iAuCS is cleaning the ice machine while in Ice Making mode ...

Page 60: ...anguage Reminders Time Date Units Brightness USB Reset Defaults Settings Service Energy Main Menu Machine Information Contact Information Service Locator Edit Contact Information Model Number Ice Machine Serial Number Condenser Serial Number 90 70 Capacity Install Date Manufacture Date Warranty Main Software Version Display Software Version Overview easyTouch Main Menu 60 INDIGO NXT Press Menu ...

Page 61: ...guage Reminders Time Date Units Brightness USB Reset Defaults Settings Service Energy Main Menu Machine Information Contact Information Service Locator Edit Contact Information Model Number Ice Machine Serial Number Condenser Serial Number 90 70 Capacity Install Date Manufacture Date Warranty Main Software Version Display Software Version Overview easyTouch Energy Menu 61 INDIGO NXT Press Energy ...

Page 62: ...n USB iAUCS Language Reminders Time Date Units Brightness USB Language Reminders Time Date Units Brightness USB Reset Defaults Settings Service Energy Main Menu Machine Information Contact Information Service Locator Edit Contact Information Model Number Ice Machine Serial Number Condenser Serial Number 90 70 Capacity Install Date Manufacture Date Warranty Main Software Version Display Software Ve...

Page 63: ...d Sensors Inputs User Interface Home Main Menu iAuCS ONLY visible if iAuCS is detected and used to activate the AuCS pump for manual cleaning USB Upgrade Firmware Export Data Contact Information Alert Log Previous E Log Manual Harvest Back Arrow Overview easyTouch Service Menu 63 INDIGO NXT ...

Page 64: ...on USB iAUCS Language Reminders Time Date Units Brightness USB Language Reminders Time Date Units Brightness USB Reset Defaults Settings Service Energy Main Menu Machine Information Contact Information Service Locator Edit Contact Information Model Number Ice Machine Serial Number Condenser Serial Number 90 70 Capacity Install Date Manufacture Date Warranty Main Software Version Display Software V...

Page 65: ...te Units Standard Metric Home Main Menu iAuCS ONLY visible if iAuCS is detected and used to set frequency of cleanings USB Export Import Settings Screen Brightness Reminders Back Arrow Overview easyTouch Settings Menu 65 INDIGO NXT ...

Page 66: ...SB Reset Defaults Settings Service Energy Main Menu Machine Information Contact Information Service Locator Edit Contact Information Model Number Ice Machine Serial Number Condenser Serial Number 90 70 Capacity Install Date Manufacture Date Warranty Main Software Version Display Software Version 66 Overview easyTouch Reset Defaults Menu INDIGO NXT Press Menu Press Reset Defaults Press Reset Factor...

Page 67: ...CS Language Reminders Time Date Units Brightness USB Language Reminders Time Date Units Brightness USB Reset Defaults Settings Service Energy Main Menu Machine Information Contact Information Service Locator Edit Contact Information Model Number Ice Machine Serial Number Condenser Serial Number 90 70 Capacity Install Date Manufacture Date Warranty Main Software Version Display Software Version ...

Page 68: ...CS Language Reminders Time Date Units Brightness USB Language Reminders Time Date Units Brightness USB Reset Defaults Settings Service Energy Main Menu Machine Information Contact Information Service Locator Edit Contact Information Model Number Ice Machine Serial Number Condenser Serial Number 90 70 Capacity Install Date Manufacture Date Warranty Main Software Version Display Software Version ...

Page 69: ... 69 INDIGO NXT INDIGO NXT Control Box User Interface Bypass Pushing the Display Bypass button on the control board will allow the ice machine to enter Ice making mode with out the display connected to the control board for up to 7 Days of operation ...

Page 70: ... Welbilt Inc Review 70 Menu Navigation Home Screen Main Menu Energy Service Settings Reset Defaults Machine Information Contact Information User Interface Bypass ...

Page 71: ... Welbilt Inc Welbilt Inc Engineered For Ease Sequence of Operation QuietQube CVD INDIGO NXT Ice Machines 71 ...

Page 72: ... Welbilt Inc Remote IB CVD Ice machines 72 Indigo NXT QuietQube CVD Sequence of Operation Bin Probe ...

Page 73: ...Inc Initial Start 73 Indigo NXT QuietQube CVD Sequence of Operation The water curtain ice dampers must be in place on the evaporator before the ice machine will start Press the ON OFF Button to start Making Ice ...

Page 74: ... Welbilt Inc Purge 74 Indigo NXT QuietQube CVD Sequence of Operation 1 Purge 45 Sec Energized Parts Water Pump Dump Valve ...

Page 75: ... Welbilt Inc Pressure Equalization 75 Indigo NXT QuietQube CVD Sequence of Operation Harvest Valve Air Pumps 1 Purge 45 Sec Equalize 5 Sec Energized Parts ...

Page 76: ...ssure exceeds the Low Pressure Switch cut in 22 old and 35 old psig and sends Line voltage to the Contactor Coil 2 The contactor closes and the compressor starts 1 Purge 45 Sec Equalize 5 Sec NOTE The INDIGO NXT CVD Control Circuit does NOT use a 24 volt Transformer The Contactor Coil is Line Voltage and is control by the Low Pressure Cut out as well as a Solid State Delay on Break Timer ...

Page 77: ... Welbilt Inc Start Up 77 Indigo NXT QuietQube CVD Sequence of Operation 1 Purge 45 Sec Equalize 5 Sec Start 5 Sec 2 Harvest Valve Air Pump Liquid Line Solenoid Compressor and Fan Energized Parts ...

Page 78: ...Condensing Unit 78 Indigo NXT QuietQube CVD Sequence of Operation Suction pressure remains higher than the low pressure control cut out 12 psig and the compressor continues to run 1 Purge 45 Sec Equalize 5 Sec Start 5 Sec 2 ...

Page 79: ... QuietQube CVD Sequence of Operation Water Level Probe 5 Sec Start 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec Equalize 5 Sec 2 Water Fill Valve Looking for WLP Liquid Line Solenoid Compressor and Fan Energized Parts ...

Page 80: ...ion Pressure remains higher than the low pressure control cut out 12 psig and the compressor continues to run Discharge pressure exceeds the fan cycle control cut in and the condenser fan motor starts Start 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec Equalize 5 Sec 5 Sec 2 ...

Page 81: ...peration Water Level Probe Water Pump Water Fill Valve Looking for WLP Liquid Line Solenoid Compressor and Fan Energized Parts 4 Freeze Ice Thickness Probe 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec Equalize 5 Sec Start 5 Sec 2 35 Minute Max ...

Page 82: ...ow pressure control cut out 12 psig and the compressor continues to run Discharge pressure remains higher than the fan cycle control cut out setting and the condenser fan motor continues to run 4 Freeze Ice Thickness Probe 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec Equalize 5 Sec Start 5 Sec 2 35 Minute Max ...

Page 83: ...lve will energize again until the High probe is satisfied and stay energized for an additional 6 seconds Single Evaporator Maximum water fill time is 6 minutes per fill X2 fills during freeze Dual Evaporator Maximum water fill time is 8 minutes per fill X2 fills during freeze Water 06 05 04 03 02 01 0 NOTE at the end of Freeze the water level should not be touching the WLP ...

Page 84: ...the control board to start a harvest cycle At the start of every freeze cycle the Ice Machine is locked into a 6 Minute Freeze cycle The 6 Minute Lock in can be overridden only by the manual harvest through the interface display When the ITP comes in contact with the ice and after the 6 minute Lock in the ice machine will go into harvest 1 8 Bridge thickness of ice ...

Page 85: ...ce of Operation Start 5 Purge 45 Sec Harvest 4 Freeze Ice Thickness Probe 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec Equalize 5 Sec 5 Sec 2 Harvest Valve Air Pump Water Pump Dump Valve Liquid Line Solenoid Compressor and Fan Energized Parts ...

Page 86: ...tinues to run Discharge pressure drops and the head pressure control valve bypasses the condenser The discharge pressure will drop below the fan cycle control cut out setting and the condenser fan motor stops Discharge Gas Discharge Gas to Receiver Start 5 Purge 45 Sec Harvest 4 Freeze Ice Thickness Probe 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec Equalize 5 Sec 5 Sec 2 ...

Page 87: ...ration Harvest Valve Air Pump Liquid Line Solenoid Compressor and Fan Energized Parts 6 Harvest Bin Switch 5 Purge 45 Sec Harvest 4 Freeze Ice Thickness Probe 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec Equalize 5 Sec Start 5 Sec 2 7 Minute Max ...

Page 88: ...and the compressor continues to run Discharge pressure remains below the fan cycle control cut out setting and the condenser fan motor remains off Discharge Gas Discharge Gas to Receiver 6 Harvest Bin Switch 5 Purge 45 Sec Harvest 4 Freeze Ice Thickness Probe 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec Equalize 5 Sec Start 5 Sec 2 7 Minute Max ...

Page 89: ... 5 Sec Start 5 Sec 2 7 Minute Max 3 5 Minutes Water Solenoid is energized and fills to the high water level probe Full Water trough of ambient Water 4 0 Minutes Water pump will come on Circulate Water 6 5 Minutes Dump valve is energized for 30 seconds Clearing the water trough of water 5 Purge 7 Minute Max 45 Sec Harvest Water Assist 3 5 Minute 4 Min 6 6 5 Min NOTE The Curtain Switch can terminate...

Page 90: ... Water pump remain running Water inlet valve fills the water trough to the High Probe Circulates approximately 3 min Dump Valve purges water down drain Repeats fill circulation purge cycle X18 times After completion Approximately 1 1 75 hours the ice machine will restart in an initial Start up Water Note Water curtain activation Open Closed will not terminate the water thaw cycle You can bypass by...

Page 91: ...ce machine off and back on not by disconnecting power Time Seconds On unit the Hi Water Level Probe is satisfied State Model Circulation Purge Dump Valve Water Pump Harvest Valve Compressor Restart in an Initial Start up Cycles 18X Ice Thaw Cycle Approximately 1 1 75 Hours 91 Indigo NXT QuietQube CVD Sequence of Operation Current Firmware To prevent Double Slab If after a 7 minute harvest cycle an...

Page 92: ...and the water curtain did not activate Indigo NXT will enter a Water Thaw Cycle During the Water Thaw Cycle The display Home Screen will continue to read MAKING ICE The display Real Time Data Screen will read THAW Note Water curtain activation Open Closed will not terminate the water thaw cycle You can bypass by turning the ice machine off and back on not by disconnecting Power ...

Page 93: ...nd Fan Return to pre chill 93 Indigo NXT QuietQube CVD Sequence of Operation Start Equalize Bin Switch Opens Closes Within 30 Seconds 6 Harvest Bin Switch 5 Purge 45 Sec Harvest 4 Freeze Ice Thickness Probe 3 Pre Chill 30 Sec thereafter 1 Purge 45 Sec 5 Sec 5 Sec 2 Energized Parts ...

Page 94: ...n Switch Open for more than 30 seconds 7 Auto Shut Off 10 Minute Delay Start Equalize 6 Harvest Bin Switch 5 Purge 45 Sec Harvest 4 Freeze Ice Thickness Probe 3 Pre Chill 30 Sec thereafter 1 Purge 45 Sec 5 Sec 5 Sec 2 Auto Shut Off Bin Switch Open for 30 Seconds 10 Minute Delay for a Restart ...

Page 95: ...lay Start Equalize 6 Harvest Bin Switch 5 Purge 45 Sec Harvest 4 Freeze Ice Thickness Probe 3 Pre Chill 30 Sec thereafter 1 Purge 45 Sec 5 Sec 5 Sec 2 Auto Shut Off Bin Probe Sensing Ice 10 Minute Delay for a Restart NOTE The Control Board doesn t just stop in mid cycle when the ice level sensor senses ice It completes the harvest cycle and then shuts off ...

Page 96: ... 410a 20 psig 30 psig differential 4 The contactor opens and the compressor shuts off 5 When the LPC opens there will be a 5 minute delay before the ice machine and CVD Condensing unit can re start due to the Delay on Break Lock out solid state timer located in the Condensing Unit Bin Switch Open for more than 30 seconds 7 Auto Shut Off 10 Minute Delay Start Equalize 6 Harvest Bin Switch 5 Purge 4...

Page 97: ...ze 6 Harvest Bin Switch 5 Purge 45 Sec Harvest 4 Freeze Ice Thickness Probe 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec 5 Sec 5 Sec 2 Restart from Auto Shut off Head Section Bin Switch Closes Bin Sensor not sensing ice and 10 minute Delay has Expired Condensing Unit 5 minute delay on break timer in series with the Low Pressure Cut Out ...

Page 98: ...e Max Harvest Cycle Water Assist Water fill o Single Evap 6 min max X2 fills o Dual Evap 8 min max X2 fills Auto Restart 98 Indigo NXT QuietQube CVD Sequence of Operation 35 Minute Max 7 Minute Max 7 Auto Shut Off 10 Minute Delay Bin Switch Closes Start Equalize 6 Harvest Bin Switch 5 Purge 45 Sec Harvest 4 Freeze Ice Thickness Probe 3 Pre Chill 120 Sec first cycle 30 Sec thereafter 1 Purge 45 Sec...

Page 99: ...99 INDIGO NXT Sequence of Operation For use on dispensers only Reduces ice machine overfill Recommended for condensation problems in high humidity locations Includes Universal Mounting Bracket NOTE Check with the dispenser manufacturer to see if the bin probe is a requirement ...

Page 100: ... Welbilt Inc Review 100 CVD Sequence of operation Purge Equalize Refrigeration Start Pre chill Freeze Purge Harvest Auto Shut off 10 Minute Delay for restart Ice Thaw Cycle Ice Level Management ...

Page 101: ... Welbilt Inc Welbilt Inc Engineered For Ease QuietQube Remote CVD Refrigeration System INDIGO NXT Ice Machine 101 ...

Page 102: ... Head Section Condenser HPCV Accumulator Suction Filter LLSV Drier TXV Evaporator Comp Suction Line S Trap Rises Over 20 Shut Off Valves Harvest Valve Check Valve Receiver Service Valve Receiver T1 Liquid line entering the Receiver T2 Liquid line leaving the Receiver T3 Evaporator Inlet T4 Evaporator Outlet T1 T2 T3 T4 ...

Page 103: ... Welbilt Inc Freeze Cycle 103 Indigo NXT QuietQube CVD Sequence of Operation Accumulator Compressor J Tube Orifice for Oil Return ...

Page 104: ...lbilt Inc Head Pressure Control Valve 104 Indigo NXT QuietQube CVD Sequence of Operation Warm Liquid to Receiver Discharge Gas Warm Liquid to Receiver Liquid From Condenser Discharge Gas Non Bypass Bypass ...

Page 105: ... Head Section Condenser HPCV Accumulator Suction Filter LLSV Drier TXV Evaporator Comp Suction Line S Trap Rises Over 20 Shut Off Valves Harvest Valve Check Valve Receiver Service Valve Receiver T1 T2 T3 T4 T1 Liquid line entering the Receiver T2 Liquid line leaving the Receiver T3 Evaporator Inlet T4 Evaporator Outlet ...

Page 106: ... Welbilt Inc Harvest Cycle CVD Condensing Unit 106 Indigo NXT QuietQube CVD Sequence of Operation Accumulator Compressor J Tube Orifice for Oil Return ...

Page 107: ...ilt Inc Harvest Cycle CVD Condensing Unit 107 Indigo NXT QuietQube CVD Sequence of Operation NORMAL Note Sub Freezing Vapor Temperature Causing Frosty Compressor During Harvest and Beginning of Freeze Cycle ...

Page 108: ... compressor discharge line and the liquid line to the ice machine receiver feel the same The headmaster is function correctly Harvest cycle too long 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 Liquid Line to Ice Machine Receiver Compressor Discharge Line Liquid Line from Condenser...

Page 109: ... Welbilt Inc Beginning of Freeze Cycle Following a Harvest Cycle 109 Indigo NXT QuietQube CVD Sequence of Operation Accumulator Compressor J Tube Orifice for Oil Return ...

Page 110: ... Welbilt Inc Ice Formation Pattern Single Circuits 110 Indigo NXT QuietQube CVD Sequence of Operation Normal Thin at Inlet Very Thin or No Ice at Outlet No Ice ...

Page 111: ... Welbilt Inc Indigo NXT IB Evaporator Layout 111 Indigo NXT QuietQube CVD Sequence of Operation Dual TXV Dual Harvest Valves One Air Pump 4 Air nozzles Upper Lower ...

Page 112: ... Welbilt Inc Ice Formation Pattern Evaporator Top and Bottom Dual Circuits 112 Indigo NXT QuietQube CVD Sequence of Operation Normal Thin at Inlet Very Thin or No Ice at Outlet ...

Page 113: ... Welbilt Inc Review 113 Refrigeration System oQuietQube Remote Freeze Harvest oEvaporator Tubing Single Circuit Multiple Circuit ...

Page 114: ... Welbilt Inc Welbilt Inc Engineered For Ease Troubleshooting INDIGO NXT Ice Machine 114 ...

Page 115: ... Freeze Cycle Ice Formation is Thick or Thin on Top or Bottom of Evaporator OR Low slow Ice Production Symptom 3 Ice Machine Will Not Harvest Freeze Cycle is Normal and Ice Cubes are NOT Melted After Attempted Harvest Safety Limit 2 possible Symptom 4 Ice Machine Will Not Harvest Freeze Cycle is Normal and Ice Cubes are Melted After Attempted Harvest Safety Limit 2 possible Four Symptoms of Troubl...

Page 116: ...No No No Yes No Yes Yes Yes No No Yes Yes No Yes No No Yes No Yes Are there any lights on or flashing on the control board Yes Symptom 1 116 Indigo NXT Ice Machine Troubleshooting Ice Machine Stops Running AND OR Has a History of Shutting Down ...

Page 117: ...47 YEL PTCR 45 BLU RUN CAPACITOR 46 ORG 49 RED 75AWHT RUN CAPACITOR 50 BLU 89APRP 75 WHT 81 WHT 75 WHT 89 PRP 42 ORG CONTACTOR COIL FAN MOTOR AIR COOLED ONLY 55 BLK 88 PRP HIGH PRESS CUTOUT 56 WHT 58 PRP 59 ORG WATER PUMP TERMINATES AT PIN CONNECTOR 98 GRY DUMPSOLENOID 57 GRY 60 BLK 61 RED 20 BLU 77 RED 76 BLK 80 WHT 99 WHT HARVEST SOLENOID AIR COMPRESSOR WHEN USED 22 WHT 21 BLU WATER VALVE RED YE...

Page 118: ...e Troubleshooting The ice machine may have some or all of these symptoms Low production may be intermittent with no safety limits in memory Owner notices the ice machine is off at a time when it is normally running The ice machine starts a new freeze cycle when bumped ...

Page 119: ... is High or Low refer to freeze cycle high or low discharge pressure problem checklist to eliminate problems and or components not listed on this table before proceeding Freeze Cycle Suction Pressure If suction pressure is High or Low refer to freeze cycle high or low suction pressure problem checklist to eliminate problems and or components not listed on this table before proceeding _______ _____...

Page 120: ...l Not Harvest Freeze Cycle is Normal and Ice Cubes are NOT Melted After Harvest Near the end of a 3 5 minute harvest cycle the sheet of ice cubes has not dropped The sheet of ice may have to be pulled out by hand Safety Limit 2 possible Ice Cubes are Not Melted After Harvest Normal ...

Page 121: ... Look for Restriction Correct Line Set Size Proper insulation Does the Condenser Fan Motor run below Cut Out Setpoint in Harvest Refer to Fan Cycling Control Diagnostics Note Some CVD675 Condensing Units may not have a Fan Cycle Control Cold Feels Hot Feels Hot Cold YES NO Feel Temperature of Discharge line 30 seconds into Harvest Cycle Refer to Harvest Headmaster Diagnostics Refer to Symptom 2 Re...

Page 122: ... Freeze Cycle is Normal and Ice Cubes are Melted After Harvest Near the end of a 3 5 minute harvest cycle the sheet of ice cubes has not dropped The sheet of ice may have to be pulled out by hand Safety Limit 2 possible Refer to Ice Melt out Flow Chart Ice Cubes are Melted After Harvest Melt Out ...

Page 123: ...harvest cycle Level Ice Machine Refer to Dump Valve Diagnostics START Are back of the cubes melted at end of harvest cycle NO YES YES Is the evaporator dirty or damaged Dry evaporator first then check Dents loose partitions or plating issues Refer to Manual Cleaning Procedure Refer to Symptom 2 Freeze Cycle Operational Analysis Table Refer to Heavily Scaled Cleaning Procedure NO Discharge line tem...

Page 124: ...why the ice is not sliding off o Dry evaporator and have the area well lit with light o Look for items such as Scale on evaporator grid plastic molding cracked or warped bent or damaged partition hammer ice pick meat cleaver etc solder deterioration grid separation gasket not sealing rough surface silicone missing from corners etc o Scale buildup that can cause a long harvest typically is on the b...

Page 125: ... Welbilt Inc Review 125 Symptom 1 Symptom 2 Symptom 3 Air Water Traditional Remote QuietQube Symptom 4 ...

Page 126: ... Welbilt Inc Welbilt Inc Engineered For Ease Troubleshooting Tips INDIGO NXT Ice Machine 126 ...

Page 127: ...ips Service Menu Navigation o Alert Log o Real Time Data o Inputs o Energize all relays Control Board Diagnostic Ice Thickness Probe Diagnostic Water Level Probe Diagnosis Replacement Control Board Procedure Firmware Update procedure Before Calling for Technical Support ...

Page 128: ...e Troubleshooting Tips Data Real Time Historical Control Board Replacement Diagnostics Control Board Sensors Inputs User Interface Home Main Menu iAuCS to activate the AuCS pump USB Upgrade Firmware Export Data Contact Information Alert Log Previous E Log Manual Harvest Back Arrow ...

Page 129: ...on Alert Log 129 Indigo NXT Ice Machine Troubleshooting Tips To access the Alert Log from the Service Menu Press the Alert Icon Scroll through the Alerts Press the Alert to open how many times it has tripped and when the last trip occurred NOTE To Clear the Alert log press the Clear Button ...

Page 130: ...t TXVmalfunctionindual circuit single evaps TXVFault When harvest is initiated by the ITP the board compares the last one minute of Freeze average temperature difference between the outlet T3 and the outlet T4 If the difference between the outlet minus the inlet is greater than 12 F E07 is recorded E09 Flood Evap 1 Floodingevaporator for single circuit single evaporator flooding evap Discharged li...

Page 131: ... used at this time Helps to identify how long you are in each phase of sequence of operation If a Thermistor is not connected the read out will equal 22 F R R REAL TIME DATA Inputs Outputs Time Temperature R R DATA Real Time Data Data History Service Menu Navigation 131 Indigo NXT Ice Machine Troubleshooting Tips Real Time Data Time and Temp NOTE Timer in Real Time Data resets at the beginning of ...

Page 132: ... Inputs Menu Service Data Real Time Data Inputs View what the control board sees to speed up Troubleshooting Very useful to conduct tap test of the ice thickness probe o 100Hz ITP Volume FFT o 120Hz ITP Volume FFT R R REAL TIME DATA Inputs Outputs Time Temperature R R DATA Real Time Data Data History ...

Page 133: ... Pump on off Harvest Valve 1 on off Harvest Valve 2 on off Water Valve on off Dump Valve on off Comp Contactor on off Minimum Freeze Length Time of day T1 Temp Recorded at 6 minutes into Freeze cycle T2 Temp Recorded 1 minute before the end of freeze cycle T3 Temp Recorded at 6 minutes into Freeze cycle T4 Temp Recorded at 6 minutes into Freeze cycle Maximum Freeze Length Time of day T1 Temp Recor...

Page 134: ...T Ice Machine Troubleshooting Tips Diagnostics Energize all relays Menu Service Diagnostics Control Board Enable Relays Energize all relays Great way to energize all output devices to check if they are getting power with waiting for the sequence of operation All Relays will be energized for 3 5 minutes ...

Page 135: ...achine Troubleshooting Tips Compressor Liquid Line Solenoid Valve Water Pump Water Inlet Solenoid Valve Left Harvest Valve For Single and Dual Evaporators Water Dump Solenoid Valve Right Harvest Valve For Dual Evaporators Only Diagnostics Energize all relays ...

Page 136: ...ips Service Menu Navigation o Alert Log o Real Time Data o Inputs o Energize all relays Control Board Diagnostic Ice Thickness Probe Diagnostic Water Level Probe Diagnosis Replacement Control Board Procedure Firmware Update procedure Before Calling for Technical Support ...

Page 137: ...ess Menu Press Service Press Diagnostics Press Control Board Control board Self Check o Serial Flash o Real Time Clock o Ice Thickness Circuit The purpose of this test is to check internal Control Board Circuits of the following Serial Flash Memory Real Time Clock and Ice Thickness Circuit ...

Page 138: ...TP and generates and senses for a known signal through the circuit This will be a Pass Fail notification Pass ITP circuit passes test on board and control board should not be replaced Fail ITP circuit fails test on board and control board should be replaced Control Board Diagnostics 138 Indigo NXT Ice Machine Troubleshooting Tips Press Menu Press Service Press Diagnostics Press Control Board Press...

Page 139: ...ips Service Menu Navigation o Alert Log o Real Time Data o Inputs o Energize all relays Control Board Diagnostic Ice Thickness Probe Diagnostic Water Level Probe Diagnosis Replacement Control Board Procedure Firmware Update procedure Before Calling for Technical Support ...

Page 140: ...n the flat part of the ITP and the grid should be set to 9 32 7mm with no ice on it as shown Adjustment Screw Cube Cells Probe Gap 9 32 1 8 Bridge Microphone Function The ice thickness probe sense ice on the evaporator and signals the control board to start a harvest cycle NOTE The Ice Machine incorporates a 6 minute freeze lock in feature to prevent the ice machine from short cycling in and out o...

Page 141: ...e Machine Troubleshooting Tips 1 Remove all ice from the evaporator when present Manual Harvest through the display 2 Press the power button and turn off the ice machine 3 Disconnect power from the ice machine at the main disconnect Premature Harvest or Freeze Up ...

Page 142: ...on and turn off the ice machine 3 Disconnect power from the ice machine at the main disconnect 4 Inspect the ice thickness probe ITP for physical damage On the face of the ITP look for bulging or cracks around the nipple and deformed pivot pins or pivot pin arms Premature Harvest or Freeze Up Good Bulged Note The ITP is not Dishwasher safe Follow cleaning procedure in the install use and care manu...

Page 143: ...Harvest through the display 2 Press the power button and turn off the ice machine 3 Disconnect power from the ice machine at the main disconnect 4 Inspect the ice thickness probe ITP for physical damage On the face of the ITP look for bulging or cracks around the nipple and deformed pivot pins or pivot pin arms 5 Verify proper Thickness setting 9 32 7mm Premature Harvest or Freeze Up 1 8 3mm Ice B...

Page 144: ... ice machine 3 Disconnect power from the ice machine at the main disconnect 4 Inspect the ice thickness probe ITP for physical damage On the face of the ITP look for bulging or cracks around the nipple and deformed pivot pins or pivot pin arms 5 Verify proper Thickness setting 9 32 7mm 6 Make sure the ice thickness probe wire and the bracket do not restrict movement of the probe Premature Harvest ...

Page 145: ...cal damage On the face of the ITP look for bulging or cracks around the nipple and deformed pivot pins or pivot pin arms 5 Verify proper Thickness setting 9 32 7mm 6 Make sure the ice thickness probe wire and the bracket do not restrict movement of the probe 7 Re apply power to the ice machine at the main disconnect and confirm the ice machine is off Ice Thickness Probe Diagnostics 145 Indigo NXT ...

Page 146: ...Time Inputs screen on the interface to view the 100Hz 120Hz 9 Observe the initial number range and perform a scratch test Remove the water curtain or splash shield if present Lift the ITP and carefully scratch the nipple on the face of the probe with your finger for at least 10 seconds Premature Harvest or Freeze Up If the number increase by 3000 or more above the initial reading begin the Harvest...

Page 147: ...e thickness probe connector is properly plugged into the board J11 and the ice thickness probe wiring is correct If the wiring is incorrect replace the ITP 10 Unplug the ITP and set a VOM to DC voltage scale Measure voltage across Pin 1 Red Wire and Pin 2 Black Wire Premature Harvest or Freeze Up NOTE Please verify the ice thickness probe is plugged into the proper position We found that in some c...

Page 148: ...ice thickness probe connector is properly plugged into the board J11 and the ice thickness probe wiring is correct If the wiring is incorrect replace the ITP 10 Unplug the ITP and set a VOM to DC voltage scale Measure voltage across Pin 1 Red Wire and Pin 2 Black Wire Voltage Measures 3 25 to 3 35 VDC Replace the ITP Voltage does NOT measure 3 25 t0 3 35 VDC Replace the Control Board Premature Har...

Page 149: ...esent 2 Remove the ice thickness probe rotate and remount with nipple facing away from the evaporator 3 Navigate to the Real Time Inputs 4 Wait until 6 5 minutes into the freeze cycle Sequence 4 Freeze 5 Scratch the ITP nipple for approximately 30 seconds Harvest Test If the Ice Probe FFT numbers increase by 3000 and the Harvest Cycle Starts The ITP and Control Board are operating normally ...

Page 150: ...ally Ice Thickness Probe Diagnostics Indigo NXT Ice Machine Troubleshooting Tips 1 Press the power button to start an ice making cycle Remove water curtain or splash guard when present 2 Remove the ice thickness probe rotate and remount with nipple facing away from the evaporator 3 Navigate to the Real Time Inputs 4 Wait until 6 5 minutes into the freeze cycle Sequence 4 Freeze 5 Scratch the ITP n...

Page 151: ...hickness probe rotate and remount with the nipple facing the evaporator Set the ice thickness probe gap to 9 32 7mm Confirm the cable is not twisted or binding and the ice thickness probe swings freely then re install the water curtain Harvest Test 9 32 7mm Gap for initial start up 1 8 3mm Ice Bridge Thickness ...

Page 152: ...Inputs o Energize all relays Control Board Diagnostic Ice Thickness Probe Diagnostic Water Level Probe Diagnosis Replacement Control Board Procedure Firmware Update procedure Before Calling for Technical Support Indigo NXT 152 Indigo NXT Ice Machine Troubleshooting Tips ...

Page 153: ... Welbilt Inc Water Level Probe Diagnostics 153 Indigo NXT Ice Machine Troubleshooting Tips ...

Page 154: ...Ice Clarity Options When in the default or factory setting the Resistance level is taken at BC and continues to fill to level A The water level probe controls the water level by sensing whether water is or is not contacting the water level probe There are three sensing probes Two probes are equal in length and are used to measure conductivity for diagnostics ice clarity and water miser options Fac...

Page 155: ... button and insure water turns off Step 2 If water continues to flow in with the ice machine off check for voltage at the Water Inlet Valve If present replace control board If no voltage is present and water continues to flow verify water pressure is below 80 psig before replacing the water inlet valve Assuming the Water Level Probe is clean ...

Page 156: ... by pushing the power button and insure water turns off Step 2 If water continues to flow in with the ice machine off check for voltage at the Water Inlet Valve If present replace control board If no voltage is present and water continues to flow verify water pressure is below 80 psig before replacing the water inlet valve Assuming the Water Level Probe is clean Water Level Probe Connector H Red W...

Page 157: ...w and Wtr High and the water level probes are touching water in the water trough then the water level probe is not conducting properly or the control board is not receiving the signal If Sensing is displayed Control board is receiving a sensing water signal If water level probes are touching water level in the water trough then continue with step 5 If not then ohm out probe and wiring and look for...

Page 158: ...Unplug the probe from the board and pull the water level probe out of its mount Ohm out from the connector to the three probes Red wire to short probe 0 ohms Black wire to both long probes 0 ohms to only one of the long probes and infinity to the other long probe White wire to the probe that showed infinity to the black wire should now show 0 ohms White Black Red H C L Short Probe ...

Page 159: ...Step 2 Navigate to Service Diagnostics Input Wtr Low and Wtr High are displayed A Sensing is displayed Control board is receiving a sensing water signal Proceed to step 3 B Not is displayed Control board is not receiving a sensing water signal Proceed to Step 4 NOTE A quick way to verify there is a water supply and the water fill solenoid valve system works is to enable all relays under Service Di...

Page 160: ...ater Level Probe Diagnostics 160 Indigo NXT Ice Machine Troubleshooting Tips Step 3 Disconnect water level probe observe display Text A Not is displayed Proceed to step 4 B Sensing is displayed replace control board ...

Page 161: ...ut of its mount Ohm out from the connector to the three probes Red wire to short probe 0 ohms Black wire to both long probes 0 ohms to only one of the long probes and infinity to the other long probe White wire to the probe that showed infinity to the black wire should now show 0 ohms With Continuity DO NOT Change Probe Without Continuity the Probe is Defective ...

Page 162: ...cycle begins then jumper water level probe connection 2 and 3 at the control board A Display reads Wtr High Sensing Water level light energizes and water flow stops Repair Wire or replace water level probe B Display Wtr High Not Water level light does not energize and water continues to flow Replace the control board ...

Page 163: ...rticular case the female connector was loose and would not make connection with the male connector from the water level probe This female connection was to loose and would not make good connection with the male connector It has already been repaired prior to photo NOTE If the high water level probe completes the circuit with the Low Water Level probe open the ice machine is programed to initiate h...

Page 164: ...all Indigo and Indigo NXT 000016053 Water Level Probe replacement assembly includes WLP 000015996 WLP wiring harness 000015998 NOTE Water Level Probe and wiring harness is in current production and all replacement probes include a wiring harness for backwards compatibility To Help improve reliability with Water Level Probe connectors we have upgraded the wiring harness and plug ...

Page 165: ...165 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe replacement assembly includes WLP 000015996 WLP wiring harness 000015998 NOTE Water Level Probe and wiring harness is in current production and all replacement probes include a wiring harness for backwards compatibility ...

Page 166: ...l Probe for all Indigo and Indigo NXT 000016053 Water Level Probe replacement assembly includes WLP 000015996 WLP wiring harness 000015998 NOTE Water Level Probe and wiring harness is in current production and all replacement probes include a wiring harness for backwards compatibility ...

Page 167: ...Inputs o Energize all relays Control Board Diagnostic Ice Thickness Probe Diagnostic Water Level Probe Diagnosis Replacement Control Board Procedure Firmware Update procedure Before Calling for Technical Support Indigo NXT 167 Indigo NXT Ice Machine Troubleshooting Tips ...

Page 168: ...rol Board Procedure 168 Indigo NXT Ice Machine Troubleshooting Tips Step by Step Instructions come with replacement control board Manual USB Transfer NOTE Model number in the Control board Must Match Data plate for proper operation ...

Page 169: ...SB Transfer Replacement control boards that have not been assigned a model or serial number will default to the following screen when powered up NOTE Model number in the Control board Must Match Data plate for proper operation R R THE SYSTEM WAS UNABLE TO DETECT A MODEL NUMBER THE FOLLOWING SCREENS WILL PROMPT YOU TO ENTER A MODEL NUMBER SERIAL NUMBER AND START DATE ...

Page 170: ... Serial add characters until the serial number is complete Press the right arrow until the cursor disappears 5 Press the right arrow After the Serial Number is entered 6 Verify Model and Serial Number 7 Reboot ice machine by disconnecting power for a minimum of 15 seconds and reapply power Replacement Control Board Procedure 170 Indigo NXT Ice Machine Troubleshooting Tips Manual Procedure ...

Page 171: ...SV R R PLEASE DO NOT REMOVE THE USB FLASH DRIVE OR POWER OFF THE MACHINE DURING THIS OPERATION USB 25 Complete R R PLEASE DO NOT REMOVE THE USB FLASH DRIVE OR POWER OFF THE MACHINE DURING THIS OPERATION USB 50 Complete R R PLEASE DO NOT REMOVE THE USB FLASH DRIVE OR POWER OFF THE MACHINE DURING THIS OPERATION USB 75 Complete R R PLEASE DO NOT REMOVE THE USB FLASH DRIVE OR POWER OFF THE MACHINE DUR...

Page 172: ...les Asset Data ASDATA00 CSV Operating Data OPDATA00 CSV Real Time Data RTDATA00 CSV Ice Machine Settings Settin00 CSV 2 Remove faulty control board 3 Install new control board 4 Insert flash drive into USB 5 Navigate to Menu Service Control Board USB Replacement R R CONTROL BOARD MANUAL REPLACEMENT USB REPLACEMENT R R USB IMPORT TO ICE MACHINE EXPORT TO USB Insert a USB flash drive into the Contro...

Page 173: ...r USB 16 GB FAT 32 VID 1005 PID B113 REV0100 NOTE This chart is a list of the USB Flash Drives that have been tested with our control system If your USB Flash Drive is not listed it doesn t mean that it will not work It means that it has not been tested Recommended Size 32 GB or Smaller Formatting FAT32 with an allocation unite size of 8192 bytes or less Website Address for Firmware https www mani...

Page 174: ... Ice Thickness Probe Diagnostic Water Level Probe Diagnosis Replacement Control Board Procedure Firmware Update procedure Before Calling for Technical Support Indigo NXT 174 Indigo NXT Ice Machine Troubleshooting Tips Firmware Upgrade Video https www manitowocice com Service Indig o Firmware Updates Firmware Instructions ...

Page 175: ...Please do not remove the USB flash Drive or power off the machine During this operation USB 50 Operation in Progress Updating Display Board Firmware R R Please do not remove the USB flash Drive or power off the machine During this operation USB 75 Operation in Progress Updating Display Board Firmware R R Please do not remove the USB flash Drive or power off the machine During this operation USB 10...

Page 176: ...Inputs o Energize all relays Control Board Diagnostic Ice Thickness Probe Diagnostic Water Level Probe Diagnosis Replacement Control Board Procedure Firmware Update procedure Before Calling for Technical Support Indigo NXT 176 Indigo NXT Ice Machine Troubleshooting Tips ...

Page 177: ...digo NXT Ice Machine Troubleshooting Tips Verify the ice machine is installed correctly Verify proper Water Supply Verify proper Voltage Supply Verify the ice machine is clean o Clean and then inspect the evaporator while dry By verifying these steps and having this information available technical support can help with a faster and more accurate diagnosis ...

Page 178: ...urate diagnosis Check for the water curtain damper closed and magnets still attached Re boot Cycle power to the control system 10 seconds off Determine what symptom the reported complaint falls under o Troubleshoot by symptom in the technician s handbook Check the Freeze and Harvest cycles Real Time Data How do they compare to the published times in the Technicians Handbook o Normal Ice machine wo...

Page 179: ...accurate diagnosis o Freeze Cycle Long Check the condenser and verify the condenser is clean and air temperature entering the condenser Symptom 2 Troubleshooting o Harvest Cycle Long Ice Staying Frozen Refer to Symptom 3 Ice Melting out slow release Refer to Symptom 4 Review the Alerts in the Alert Menu What does the control board tell you to look at List the Alerts Number of times tripped Date an...

Page 180: ...ressure T1 F T2 F T3 F T4 F Hot Gas Inlet Hot Warm Length of time Freeze 1 Minute into Freeze way through Freeze Last Minute of Freeze Harvest 30 Seconds into Harvest End of Harvest Sequence of operation state Discharge Pressure Suction Pressure T1 F T2 F T3 F T4 F Hot Gas Inlet Hot Warm Length of time Freeze 1 Minute into Freeze 400 psi 85 psi 110 120 20 25 Warm 17 min way through Freeze 375 psi ...

Page 181: ...ion o Alert Log o Real Time Data o Inputs o Energize all relays Control Board Diagnostic Ice Thickness Probe Diagnostic Water Level Probe Diagnosis Replacement Control Board Procedure Firmware Update procedure Before Calling for Technical Support ...

Page 182: ... Inc Welbilt Inc Manitowoc Ice Training videos 182 Service Training Update Indigo NXT Firmware Upgrade Manitowoc Ice Technical Training Videos Indigo NXT PM Cleaning RN RF Cleaning Indigo NXT Detailed Cleaning ...

Page 183: ... Welbilt Inc CLEVELAND CONVOTHERM DELFIELD FITKITCHENSM FRYMASTER GARLAND KOLPAK LINCOLN MANITOWOC MERCO MERRYCHEF MULTIPLEX SUPPORTED BY KITCHENCARE Thank You For Attending ...

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