Manitowoc Welbilt Indigo NXT QuietQube Manual
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Manitowoc Welbilt Indigo NXT QuietQube Manual

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Indigo NXT QuietQube
Remote Ice Machine
Course ID #ICE2106, Indigo NXT QuietQube
Remote Ice Machine Technical Training
(4 hour duration)
Engineered For Ease
© Welbilt, Inc.

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Summary of Contents for Manitowoc Welbilt Indigo NXT QuietQube

  • Page 1 Indigo NXT QuietQube Remote Ice Machine Course ID #ICE2106, Indigo NXT QuietQube Remote Ice Machine Technical Training (4 hour duration) Engineered For Ease © Welbilt, Inc.
  • Page 2 Course ID #ICE2106 Seminar Topics: 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 Overview INDIGO NXT Engineered For Ease © Welbilt, Inc. © Welbilt, Inc.
  • Page 4 INDIGO NXT Overview • Model Number Update • Configurations • Front Identification • Back Identification • Rotary Compressors © Welbilt, Inc.

  • Page 5: Model Number Definition

    INDIGO NXT Model Number Definition: CONDENSER TYPE A Self-Contained Air-Cooled W Self-Contained Water-Cooled ICE MACHINE SERIES N Remote Air-Cooled C CVD Air-Cooled ADDITIONAL SPECS ICE CUBE SIZE M – Marine Model R Regular P – Prison Model D Dice Q – Coted Coils Y Half Dice X –...
  • Page 6 INDIGO NXT Alternative Conversion Tubing Kits: 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 Embraco compressors as a replacement.
  • Page 7 INDIGO NXT Overview 48” Wide 30” Wide 22” Wide All three widths come in Air and Water cooled. © Welbilt, Inc.
  • Page 8 INDIGO NXT Overview 48” Wide 30” Wide 22” Wide All three widths come in Air and Water cooled. Only the 48” and 30” wide are offered as a Traditional Remote. © Welbilt, Inc.
  • Page 9 INDIGO NXT Overview 30” Wide 22” Wide 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. © Welbilt, Inc.

  • Page 10: Overview: Front View

    INDIGO NXT Overview: Front View Top Hinge Manitowoc Ice Logo Front Door Screw (top) Touch Screen Interface Front Door Screw (bottom) © Welbilt, Inc.

  • Page 11: Electrical Connection

    INDIGO NXT Overview: Rear View Electrical connection Rear electrical box access Rear Data Plate Condenser Water Label Ice Making Water label 3/8” Inlet 1/2” outlet Safety Kit Base Drain & Label Safety Kit © Welbilt, Inc.
  • Page 12 INDIGO NXT Overview: Front View with door remove Refrigeration Access Control Board Contactor On/Off Button Clean Button Display Lock Button Touch Display © Welbilt, Inc.
  • Page 13 INDIGO NXT Overview: Rotary Compressor “Warning Label” All Rotary Compressor systems are planned to have a third refrigeration access port added to the liquid line for Charging only. © Welbilt, Inc.
  • Page 14 INDIGO NXT Rotary Refrigeration System (Liquid Charging) EVAPORATOR Rotary Compressor Third Port Liquid HEAT EXCHANGER Charging: • Damage may occur when THERMOSTATIC charging liquid into the front EXPANSION COMPRESSOR VALVE discharge line service access port. HARVEST VALVE • It is recommended that all Liquid charging should be done through the Liquid Line service access.
  • Page 15 INDIGO NXT Ice Thickness Probe: Update Molded Plastic Molded Plastic stops stops INCREASE INCREASE BRIDGE BRIDGE THI C KNESS THI C KNESS 2019 Indigo NXT ITP added stops to Original Indigo Ice XXXXXXX XXXXXXX prevent over Thickness Probe bending of Hinge Pins.
  • Page 16 Overview Review • Model Number Update (Refrigerant Type) • Configurations • Front Identification • Back Identification • Rotary Compressors • Ice Thickness Probe Update © Welbilt, Inc.
  • Page 17 QuietQube/CVD Installation INDIGO NXT Engineered For Ease © Welbilt, Inc. © Welbilt, Inc.
  • Page 18 QuietQube / CVD Installation QuietQube® Remote CVD® Technology 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 QuietQube / CVD Installation Electrical Ice Machine Voltage Maximum Important: Fuse/Circuit Due to continuous improvements, this information is Breaker for reference only. Please refer to the ice machine Install strain relief and proper Disconnect within 6 feet serial number tag to verify electrical data. Ice Beverage 115/1/60 wiring to ice machine...

  • Page 20: Proper Installation

    QuietQube / CVD Installation Proper Installation • Water Supply • Do not Exceed 80 psi • Water Inlet = 3/8” FPT • Drains (Ran Separately) • Dump Valve Drain = ½” FPT • Install 18” Vent Tubes • Base Drain = ½” CPVC •...
  • Page 21 QuietQube / CVD Installation Proper Installation 2” • Water Supply QQ Model Head Clearance Requirements: • Do not Exceed 80 psi Model Back Sides • Water Inlet = 3/8” FPT 8” 5” IF0600C Side Back • Drains (Ran Separately) IF0900C IT1200C 5”...
  • Page 22 QuietQube / CVD Installation Proper Installation QQ Model Condensing Unit Clearance Requirements: Model Back Sides CVDF0600 24” CVDF0900 Top recommendation for Servicing CVDT1200 0” 48” 48” CVDF1400 (0 cm) (122 cm) (122 cm) CVDF1800 CVDF2100 48” 48” Back Sides Service Recommendation: **61cm (24”) is recommended on top for servicing.
  • Page 23 QuietQube / CVD Installation Indigo NXT: CVD Condensing Unit improvements • 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 QuietQube / CVD Installation Proper Line Set Length Installation CVD Condensing Unit Electrical Disconnect Proper installation instructions can be found in the install use and care manual or the Technician’s Handbook Suction Line Liquid LIne Ice Machine Head Electrical Section Disconnect Suction Refrigerant...
  • Page 25 0’ - 20’ (0 - 6.1 m) Rise: No traps required 21’ - 35’ (6.4 – 10.7 m) Rise: S trap required (Available from Manitowoc Shorten line set as necessary (avoid unwanted traps) Important: Never Deviate from Required Tubing O.D.

  • Page 26: Ice Machine Head Section

    QuietQube / CVD Installation Installing Refrigeration Lines Ice Machine Head Section • Valves remain closed (frontseated) • Wrap valves with wet rag while brazing • Purge nitrogen while brazing © Welbilt, Inc.

  • Page 27: Condensing Unit

    QuietQube / CVD Installation Installing Refrigeration Lines Condensing Unit • 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 •...
  • Page 28 QuietQube / CVD Installation Pressure Test & Evacuate Pressure test with 150 psig (1034 kPa) nitrogen Remove valves cores to decrease evacuation time Evacuate at head section or condensing unit Install micron gauge on the opposite end of system that the vacuum pump is on.

  • Page 29: Shut-Off Valve

    QuietQube / CVD Installation Open Valves Backseat Liquid Line Backseat Suction Line Shut-off Valve 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 QuietQube / Refrigeration System Overview Comp. Condenser Suction Filter HPCV Accumulator • T1=Liquid line entering Condensing Unit the Receiver Suction Line ‘S’ Trap Rises Over 20’ • T2=Liquid line leaving Ice Machine Head Section the Receiver Shut-Off Valves Evaporator • T3=Evaporator Inlet •...
  • Page 31 Review • 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. © Welbilt, Inc.
  • Page 32 EasyTouch Installation Set-Up Wizard INDIGO NXT Ice Machine Engineered For Ease © Welbilt, Inc. © Welbilt, Inc.
  • Page 33 INDIGO NXT easyTouch® Set-Up Wizard • Installation Set-Up Wizard − Language − Configurations − Auto Detection − Settings − Programing − Reminders − Water usage − Resetting the Set-Up Wizard © Welbilt, Inc.
  • Page 34 Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc replacement (based off of usage) • Upon Initial Start Up the Wizard will water Filter • Non-Manitowoc water...
  • Page 35 NOTE: This option only appears if the ice machine is a self-contained Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc replacement (based off of usage) • Press Start Wizard water Filter • Non-Manitowoc water Reminder filter (based off of time) •...
  • Page 36 NOTE: This option only appears if the ice machine is a self-contained Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc replacement (based off of usage) • Optional Configuration water Filter • Non-Manitowoc water Reminder filter (based off of time) •...
  • Page 37 Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc replacement (based off of usage) • A green checkmark indicates the water Filter • Non-Manitowoc water Reminder filter (based off of time) accessory item is detected.
  • Page 38 Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc replacement (based off of usage) • A green checkmark indicates the water Filter • Non-Manitowoc water Reminder filter (based off of time) accessory item is detected.
  • Page 39 Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc replacement (based off of usage) • For “IB” Model Indigo NXT’s an Ice water Filter • Non-Manitowoc water...
  • Page 40 Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc • This screen is to import settings from a flash replacement (based off of usage) water Filter • Non-Manitowoc water...
  • Page 41 Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc • Optional Unit Configuration. replacement (based off of usage) water Filter • Non-Manitowoc water • Optional “Dim” Brightness.
  • Page 42 Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc • Optional Ice Program (auto defaults to replacement (based off of usage) water Filter • Non-Manitowoc water...
  • Page 43 NOTE: This option only appears if the ice machine is a self-contained Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc • Optional Cleaning Reminder replacement (based off of usage) water Filter • Non-Manitowoc water o Cleaning...
  • Page 44 Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc • Optional Air Filter Reminder. replacement (based off of usage) water Filter • Non-Manitowoc water o This option appears if the ice machine is a...
  • Page 45 • Arctic Pure/Manitowoc • Optional Water Filter Reminder. replacement (based off of usage) water Filter • Non-Manitowoc water o Arctic Pure / Manitowoc Reminder filter (based off of time) − Automatic reminder will be generated • Use Factory Defaults Water Usage •...
  • Page 46 NOTE: This option only appears if the ice machine is a self-contained Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). Optional • Arctic Pure/Manitowoc replacement (based off of usage) • Water Usage Option: water Filter • Non-Manitowoc water Reminder...
  • Page 47 Optional Clean Air air cooled ice machine (driven by Filter Reminder model table). • Congratulations! Setup Wizard is complete! Optional • Arctic Pure/Manitowoc replacement (based off of usage) Press the right Arrow to advance. water Filter • Non-Manitowoc water Reminder filter (based off of time) •...
  • Page 48 Indigo NXT easyTouch® Set-Up Wizard: Reset • To restart the Set Up Wizard for training purposes or resale of equipment, its as easy as go resetting the factory default and checking the “Require Setup Wizard”. 1. Press “MENU” 2. Press “RESET DEFAULTS” 3.
  • Page 49 Review • Date & Time • Auto Detection • USB Settings Download • Configurations • Reminders • Water Usage Option • How to start the ice machine • Set-up Wizard Reset © Welbilt, Inc.

  • Page 50: Menu Navigation

    Menu Navigation Indigo NXT Ice Machines Engineered For Ease © Welbilt, Inc.
  • Page 51 INDIGO NXT Overview: easyTouch® User Interface NOTE: Orange Lock icon’s started with the release of 8.6 Software version. © Welbilt, Inc.
  • Page 52 INDIGO NXT Overview: easyTouch® User Interface Interface Lock button On/Off button Clean button Time Date Lock Icon Alert Icon Luminice Message Icon iAuCS Activation Lock Icon in Main Menu place of Menu Contact Information Machine Status Machine Information © Welbilt, Inc.
  • Page 53 Menu Navigation Menu Map •ON/OFF button takes the place of a traditional Toggle Switch Home Screen •Pushing the button, starts and • • Water Main Menu Energy • Statistics stops the ice making sequence of • Data operation. • Alert Log Service •...
  • Page 54 Touch Screen Interface (Main Menu) Indigo NXT Menu Navigation: Alert © Welbilt, Inc.
  • Page 55 Touch Screen Interface (Main Menu) Indigo NXT Menu Navigation: Alert © Welbilt, Inc.
  • Page 56 Touch Screen Interface (Main Menu) Indigo NXT Menu Navigation: Messages Home Screen Alert Icon & number of Alerts Home Screen Message Icon & number of Messages © Welbilt, Inc.
  • Page 57 Touch Screen Interface (Main Menu) Indigo NXT Menu Navigation: Messages Home Screen Alert Icon & number of Alerts Home Screen Message Icon & number of Messages Home Screen Luminice Icon & Color Status of Bulb Blue = Good Red = Failure ©...
  • Page 58 Touch Screen Interface (Main Menu) Indigo NXT Menu Navigation: Programmed Icon Home Screen Alert Icon & number of Alerts Home Screen Message Icon & number of Messages Home Screen Luminice Icon & Color Status of Bulb Blue = Good Red = Failure Home Screen Program button.
  • Page 59 Touch Screen Interface (Main Menu) Indigo NXT Menu Navigation: Programmed Icon Home Screen Alert Icon & number of Alerts Home Screen Message Icon & number of Messages Home Screen Luminice Icon & Color Status of Bulb Blue = Good Red = Failure Home Screen Program button.
  • Page 60 INDIGO NXT Overview: easyTouch® Main Menu Home Screen • • Water Main Menu Energy • Statistics • Data • Alert Log Service • Manual Harvest • Control Board Replacement • Diagnostics • Contact Information • • iAUCS • Language • Reminders Settings •...
  • Page 61 INDIGO NXT Overview: easyTouch® Energy Menu Home Screen • • Water Main Menu Energy • Statistics • Data • Alert Log Service • Manual Harvest • Control Board Replacement • Diagnostics • Contact Information • • iAUCS • Language • Reminders Settings •...
  • Page 62 INDIGO NXT Overview: easyTouch® Service Menu Home Screen • • Water Main Menu Energy • Statistics • Data • Alert Log Service • Manual Harvest • Control Board Replacement • Diagnostics • Contact Information • • iAUCS • Language • Reminders Settings •...

  • Page 63: Contact Information

    INDIGO NXT Overview: easyTouch® Service Menu Manual Harvest Alert Log (Previous E-Log) Control Board Data Replacement (Real Time & Historical) iAuCS (ONLY visible if iAuCS is detected and used to activate the AuCS pump Diagnostics for manual cleaning) (Control Board, Sensors, Inputs, User Interface) (Upgrade Firmware, Export Data)
  • Page 64 INDIGO NXT Overview: easyTouch® Settings Menu Home Screen • • Water Main Menu Energy • Statistics • Data • Alert Log Service • Manual Harvest • Control Board Replacement • Diagnostics • Contact Information • • iAUCS • Language • Reminders Settings •...

  • Page 65: Screen Brightness

    INDIGO NXT Overview: easyTouch® Settings Menu Reminders Time & Date Language iAuCS (ONLY visible if iAuCS is detected and used to set frequency of Units cleanings) (Standard & Metric) (Export & Import Settings) Home Screen Brightness Main Menu Back Arrow ©...
  • Page 66 INDIGO NXT Overview: easyTouch® Reset Defaults Menu Home Screen • • Water Main Menu Energy • Statistics • Data • Alert Log Service • Manual Harvest • Control Board Replacement • Diagnostics • Contact Information • • iAUCS • Language •...
  • Page 67 INDIGO NXT Overview: easyTouch® Machine Information Home Screen • • Water Main Menu Energy • Statistics • Data • Alert Log Service • Manual Harvest • Control Board Replacement • Diagnostics • Contact Information • • iAUCS • Language • Reminders Settings •...
  • Page 68 INDIGO NXT Overview: easyTouch® Contact Information Home Screen • • Water Main Menu Energy • Statistics • Data • Alert Log Service • Manual Harvest • Control Board Replacement • Diagnostics • Contact Information • • iAUCS • Language • Reminders Settings •...
  • Page 69 INDIGO NXT Overview: easyTouch® User Interface 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 Review • Menu Navigation – Home Screen – Main Menu – Energy – Service – Settings – Reset Defaults – Machine Information – Contact Information • User Interface Bypass © Welbilt, Inc.
  • Page 71 Sequence of Operation: QuietQube/CVD INDIGO NXT Ice Machines Engineered For Ease © Welbilt, Inc. © Welbilt, Inc.
  • Page 72 Indigo NXT QuietQube/CVD: Sequence of Operation Remote IB / CVD Ice machines Bin Probe © Welbilt, Inc.

  • Page 73: Initial Start

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

  • Page 74: Energized Parts

    Indigo NXT QuietQube/CVD: Sequence of Operation Purge Purge 45 Sec Energized Parts •Water Pump •Dump Valve © Welbilt, Inc.
  • Page 75 Indigo NXT QuietQube/CVD: Sequence of Operation Pressure Equalization Purge Equalize 45 Sec 5 Sec Energized Parts •Harvest Valve •Air Pumps © Welbilt, Inc.
  • Page 76 Indigo NXT QuietQube/CVD: Sequence of Operation Equalize – Condensing Unit Purge Equalize 45 Sec 5 Sec After the harvest valve energizes, suction pressure at the condensing unit increases. 1. The suction pressure exceeds the Low Pressure Switch cut-in (22 old and 35 old psig) and sends Line voltage to the Contactor Coil.
  • Page 77 Indigo NXT QuietQube/CVD: Sequence of Operation Start-Up Equalize Purge Start 45 Sec 5 Sec 5 Sec Energized Parts •Harvest Valve •Air Pump •Liquid Line Solenoid (Compressor and Fan) © Welbilt, Inc.
  • Page 78 Indigo NXT QuietQube/CVD: Sequence of Operation Start-Up - Condensing Unit Equalize Purge Start 45 Sec 5 Sec 5 Sec Suction pressure remains higher than the low pressure control cut-out (12 psig) and the compressor continues to run. © Welbilt, Inc.
  • Page 79 Indigo NXT QuietQube/CVD: Sequence of Operation Pre-Chill Pre-Chill Equalize Purge Start 120 Sec. 45 Sec 5 Sec 5 Sec (first cycle) 30 Sec. (thereafter) Energized Parts •Water Fill Valve (Looking for WLP) •Liquid Line Solenoid (Compressor and Fan) Water Level Probe ©...
  • Page 80 Indigo NXT QuietQube/CVD: Sequence of Operation Pre-Chill – Condensing Unit Pre-Chill Equalize Purge Start 120 Sec. 45 Sec 5 Sec 5 Sec (first cycle) 30 Sec. (thereafter) Suction Pressure remains higher than the low pressure control cut-out (12 psig) and the compressor continues to run.
  • Page 81 Indigo NXT QuietQube/CVD: Sequence of Operation Freeze 35 Minute Max Pre-Chill Freeze Purge Equalize Start 120 Sec. Ice Thickness 45 Sec 5 Sec 5 Sec (first cycle) Probe 30 Sec. (thereafter) Energized Parts •Water Pump •Water Fill Valve (Looking for WLP) •Liquid Line Solenoid (Compressor and Fan) Water Level Probe...
  • Page 82 Indigo NXT QuietQube/CVD: Sequence of Operation Freeze – Condensing Unit 35 Minute Max Pre-Chill Freeze Purge Equalize Start 120 Sec. Ice Thickness 45 Sec 5 Sec 5 Sec (first cycle) Probe 30 Sec. (thereafter) Suction Pressure remains higher than the low pressure control cut-out (12 psig) and the compressor continues to run.
  • Page 83 Indigo NXT QuietQube/CVD: Sequence of Operation Water Level Probe Operation (WLP) • During freeze cycle the water level 06 05 04 03 02 01 0 will drop away from the “High” Probe. • Water valve will energize again until the “High” probe is satisfied and stay energized for an additional 6 seconds.
  • Page 84 Indigo NXT QuietQube/CVD: Sequence of Operation Ice Thickness Probe Operation (ITP) • The Ice Thickness Probe (ITP) senses ice on the evaporator and signals 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 •...
  • Page 85 Indigo NXT QuietQube/CVD: Sequence of Operation Harvest Purge Harvest Pre-Chill Freeze Purge Equalize Purge Start 120 Sec. Ice Thickness 45 Sec 45 Sec 5 Sec 5 Sec (first cycle) Probe 30 Sec. (thereafter) Energized Parts •Harvest Valve •Air Pump •Water Pump •Dump Valve •Liquid Line Solenoid (Compressor and Fan)
  • Page 86 Indigo NXT QuietQube/CVD: Sequence of Operation Harvest Purge – Condensing Unit Harvest Pre-Chill Freeze Purge Equalize Purge Start 120 Sec. Ice Thickness 45 Sec 45 Sec 5 Sec 5 Sec (first cycle) Probe Discharge 30 Sec. Discharge (thereafter) Gas to Receiver Suction Pressure remains higher than the low pressure control cut-out (12 psig) and the...
  • Page 87 Indigo NXT QuietQube/CVD: Sequence of Operation Harvest Harvest Pre-Chill Freeze Purge Harvest Purge Equalize Start 120 Sec. Ice Thickness 45 Sec Bin Switch 45 Sec 5 Sec 5 Sec (first cycle) Probe 30 Sec. (thereafter) 7 Minute Max Energized Parts •Harvest Valve •Air Pump •Liquid Line Solenoid...
  • Page 88 Indigo NXT QuietQube/CVD: Sequence of Operation Harvest – Condensing Unit Harvest Pre-Chill Freeze Purge Harvest Purge Equalize Start 120 Sec. Ice Thickness 45 Sec Bin Switch 45 Sec 5 Sec 5 Sec (first cycle) Probe 30 Sec. (thereafter) 7 Minute Max Suction Pressure remains higher than the low pressure control cut-out (12 psig) and the compressor continues to run.
  • Page 89 Indigo NXT QuietQube/CVD: Sequence of Operation Harvest Water Assist Harvest Pre-Chill Freeze Purge Harvest Purge Equalize Start 120 Sec. Ice Thickness 45 Sec Bin Switch 45 Sec 5 Sec 5 Sec Purge Water Assist Harvest (first cycle) Probe 30 Sec. (thereafter) 7 Minute Max 45 Sec...
  • Page 90 Indigo NXT QuietQube/CVD: Sequence of Operation Ice Thaw Cycle (Approximately 1-1.75 Hours) To prevent Freeze Up: If after a 7 minute harvest cycle and the water curtain did not activate, Indigo NXT will enter a Water Thaw Cycle: • Compressor will shut down. •...
  • Page 91 Indigo NXT QuietQube/CVD: Sequence of Operation Ice Thaw Cycle (Approximately 1-1.75 Hours) Current Firmware (To prevent Double Slab) If after a 7 minute harvest cycle and the water curtain did not activate, Indigo will enter a Water Thaw Cycle: Water Time Dump Water...
  • Page 92 Indigo NXT QuietQube/CVD: Sequence of Operation Ice Thaw Cycle (Approximately 1-1.75 Hours) Current Firmware (To prevent Double Slab) If after a 7 minute harvest cycle and the water curtain did not activate, Indigo NXT will enter a Water Thaw Cycle: During the Water Thaw Cycle: •...
  • Page 93 Indigo NXT QuietQube/CVD: Sequence of Operation Return to pre-chill Bin Switch Opens & Harvest Closes Pre-Chill Freeze Purge Harvest Within 30 Equalize Purge Start 30 Sec. Seconds Bin Switch Ice Thickness 45 Sec 45 Sec 5 Sec 5 Sec (thereafter) Probe Energized Parts •Water Fill Valve...

  • Page 94: Auto Shut-Off

    Indigo NXT QuietQube/CVD: Sequence of Operation Auto Shut-Off (Damper Door) Harvest Bin Switch Open for more than Pre-Chill Freeze Purge Harvest Equalize Purge Start 30 seconds 30 Sec. Bin Switch Ice Thickness 45 Sec 45 Sec 5 Sec 5 Sec (thereafter) Probe Auto Shut Off...
  • Page 95 Indigo NXT QuietQube/CVD: Sequence of Operation Auto Shut-Off (Bin Probe) Harvest Bin Switch Open for more than Pre-Chill Freeze Purge Harvest Equalize Purge Start 30 seconds 30 Sec. Bin Switch Ice Thickness 45 Sec 45 Sec 5 Sec 5 Sec (thereafter) Probe Auto Shut Off...
  • Page 96 Indigo NXT QuietQube/CVD: Sequence of Operation Auto Shut-Off – Condensing Unit ** This is to reduce short cycling for pump down cycles / short cycling. ** Harvest Bin Switch Open for more than Pre-Chill Freeze Purge Harvest Equalize Purge Start 30 seconds 30 Sec.

  • Page 97: Auto Restart

    Indigo NXT QuietQube/CVD: Sequence of Operation Auto Restart Harvest Pre-Chill Freeze Purge Harvest Equalize Purge Start Bin Switch 120 Sec. Closes Ice Thickness 45 Sec Bin Switch 45 Sec 5 Sec 5 Sec (first cycle) Probe 30 Sec. (thereafter) Auto Shut Off (10 Minute Delay) Restart from Auto Shut off 10 Minutes Elapse...
  • Page 98 Indigo NXT QuietQube/CVD: Sequence of Operation Auto Restart 35 Minute Max Harvest Pre-Chill Freeze Purge Harvest Equalize Purge Start Bin Switch 120 Sec. Closes Ice Thickness 45 Sec Bin Switch 45 Sec 5 Sec 5 Sec (first cycle) Probe 30 Sec. (thereafter) 7 Minute Max Auto Shut Off...
  • Page 99 INDIGO NXT Sequence of Operation Optional Bin Level Thermostat: K00477 Universal Thermostat Kit • 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 Review • 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 © Welbilt, Inc.
  • Page 101 QuietQube Remote CVD: Refrigeration System INDIGO NXT Ice Machine Engineered For Ease © Welbilt, Inc. © Welbilt, Inc.
  • Page 102 Indigo NXT QuietQube/CVD: Sequence of Operation Freeze Cycle Comp. Condenser Suction Filter HPCV Accumulator • T1=Liquid line entering Condensing Unit the Receiver Suction Line ‘S’ Trap Rises Over 20’ • T2=Liquid line leaving Ice Machine Head Section the Receiver Shut-Off Valves Evaporator •...
  • Page 103 Indigo NXT QuietQube/CVD: Sequence of Operation Freeze Cycle Compressor J-Tube Orifice for Oil Return Accumulator © Welbilt, Inc.

  • Page 104: Head Pressure Control Valve

    Indigo NXT QuietQube/CVD: Sequence of Operation Head Pressure Control Valve Bypass Non-Bypass Discharge Discharge Warm Warm Liquid to Liquid to Receiver Receiver Liquid From Condenser © Welbilt, Inc.

  • Page 105: Harvest Cycle

    Indigo NXT QuietQube/CVD: Sequence of Operation Harvest Cycle Comp. Condenser Suction Filter HPCV Accumulator • T1=Liquid line entering Condensing Unit the Receiver Suction Line ‘S’ Trap Rises Over 20’ • T2=Liquid line leaving Ice Machine Head Section the Receiver Shut-Off Valves Evaporator •...
  • Page 106 Indigo NXT QuietQube/CVD: Sequence of Operation Harvest Cycle: CVD Condensing Unit Compressor J-Tube Orifice for Oil Return Accumulator © Welbilt, Inc.
  • Page 107 Indigo NXT QuietQube/CVD: Sequence of Operation Harvest Cycle: CVD Condensing Unit NORMAL Note: Sub-Freezing Vapor Temperature Causing Frosty Compressor During Harvest and Beginning of Freeze Cycle © Welbilt, Inc.
  • Page 108 Indigo NXT QuietQube/CVD: Sequence of Operation HPC Valve Harvest Cycle Test 30 Seconds into Harvest Grasp Here with Hands to Compare Temperatures Finding Comments Temperature of the compressor The headmaster is discharge line and the liquid line function correctly. to the ice machine receiver feel Compressor the same.
  • Page 109 Indigo NXT QuietQube/CVD: Sequence of Operation Beginning of Freeze Cycle Following a Harvest Cycle Compressor J-Tube Orifice for Oil Return Accumulator © Welbilt, Inc.
  • Page 110 Indigo NXT QuietQube/CVD: Sequence of Operation Ice Formation Pattern: Single Circuits Thin at Inlet No Ice Very Thin or No Normal at Outlet © Welbilt, Inc.
  • Page 111 Indigo NXT QuietQube/CVD: Sequence of Operation Indigo NXT IB Evaporator Layout • Dual TXV • Dual Harvest Valves Upper • One Air Pump • 4-Air nozzles Lower © Welbilt, Inc.
  • Page 112 Indigo NXT QuietQube/CVD: Sequence of Operation Ice Formation Pattern: Evaporator Top and Bottom Dual Circuits Normal Very Thin or No Thin at Inlet at Outlet © Welbilt, Inc.
  • Page 113 Review • Refrigeration System oQuietQube Remote −Freeze −Harvest oEvaporator Tubing −Single Circuit −Multiple Circuit © Welbilt, Inc.

  • Page 114: Troubleshooting

    Troubleshooting INDIGO NXT Ice Machine Engineered For Ease © Welbilt, Inc. © Welbilt, Inc.
  • Page 115 Indigo NXT Ice Machine Troubleshooting Troubleshooting Four Symptoms of Troubleshooting • Symptom #1 - Ice Machine Stops Running − Power Button has been Pushed AND/OR − Has a History of Shutting Down • Symptom #2 - Ice Machine has a Long Freeze Cycle −...
  • Page 116 Indigo NXT Ice Machine Troubleshooting Symptom #1 Ice Machine Stops Running AND/OR Are there any lights on or Has a History of Shutting flashing on the control board? Down © Welbilt, Inc.
  • Page 117 Indigo NXT Ice Machine Troubleshooting Magnetic Bin Switch Diagnostics: 1. Verify bin switch, Curtain/Damper and curtain/damper magnet are in place and navigate to Inputs. L2 OR N L2 OR N (Menu/Service/Data/Realtime/Inputs) BIN SWITCH BIN SWITCH 8 WHT 2. Open and close the Curtain/Damper(s) 8 WHT LUMINICE LUMINICE...
  • Page 118 Indigo NXT Ice Machine Troubleshooting Damper Communicator MII-087: 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.
  • Page 119 Indigo NXT Ice Machine Troubleshooting Symptom #2: Quiet Qube Refrigeration Operational Analysis Table QuietQube ® - Symptom #2 – Ice Machine has a Long Freeze Cycle QuietQube  Ice Machines Refrigeration Diagnostic Chart Single Evaporator, Single Expansion Valve Operational Analysis Ice Production Published 24 hour ice production ____________________ Calculated (actual) ice production ___________________...
  • Page 120 Indigo NXT Ice Machine Troubleshooting Symptom #3 Ice Machine Will 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.
  • Page 121 Indigo NXT Ice Machine Troubleshooting Symptom #3: Remote CVD Is your Harvest Valve(s) Refer to Sequence of Operation Energized? & Wiring Diagram Comp. Condenser Note: All Pressure Readings are taken from the Liquid and Suction Are the Harvest Suction Shut Off Valves located in the rear Pressures Normal? of the Ice Machine Head Section.
  • Page 122 Indigo NXT Ice Machine Troubleshooting Symptom #4 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.
  • Page 123 Indigo NXT Ice Machine Troubleshooting Symptom #4 Ice Machine Will Not Harvest - Freeze Cycle is Normal and Ice Cubes are Melted After Harvest START Is Ice Machine Level Ice Are back of the cubes melted level? Machine at end of harvest cycle? Is water flowing over the Refer to Dump evaporator in the first 45 seconds...
  • Page 124 Indigo NXT Ice Machine Troubleshooting Symptom #4 o Inspect evaporator for reasons 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...
  • Page 125 Review • Symptom #1 • Symptom #2 • Symptom #3 –Air, Water –Traditional Remote –QuietQube • Symptom #4 © Welbilt, Inc.

  • Page 126: Troubleshooting Tips

    Troubleshooting Tips INDIGO NXT Ice Machine Engineered For Ease © Welbilt, Inc. © Welbilt, Inc.
  • Page 127 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT • 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 •...
  • Page 128 Indigo NXT Ice Machine Troubleshooting Tips Service Menu Navigation: Service Overview Manual Harvest Alert Log (Previous E-Log) Control Board Data Replacement (Real Time & Historical) iAuCS (to activate the AuCS pump) Diagnostics (Control Board, Sensors, Inputs, User Interface) (Upgrade Firmware, Export Data) Home Contact...

  • Page 129: Alert Log

    Indigo NXT Ice Machine Troubleshooting Tips Service Menu Navigation Alert Log ALERT LOG E1 LONG FREEZE E2 LONG HARVEST Clear All To access the Alert Log from the Service Menu: • Press the Alert Icon • Scroll through the Alerts •...
  • Page 130 Indigo NXT Ice Machine Troubleshooting Tips Alert Log and Service Definition Detail Alert Log Service Definition When an Alert / E Log is triggered; E-Log Display Text Error Description Definition Long Freeze 3 consecutive 35 Minute Freeze cycle, shut down Long Freeze Long Harvest 3 - 7 Minute Harvests logs SL#2 in memory but doesn't shut down until 500 long harvest cycles.

  • Page 131: Real Time Data

    Indigo NXT Ice Machine Troubleshooting Tips Service Menu Navigation Real Time Data: Time and Temp REAL TIME DATA DATA Time & Temperature Real Time Data Inputs Data History Outputs Menu/Service/Data/Real Time Data/Time and Temperature • Very useful when troubleshooting the refrigeration system. o T1, T2, T3, T4 Refrigeration Thermistor Temperatures o T5 = Ice Level Management Kit.
  • Page 132 Indigo NXT Ice Machine Troubleshooting Tips Service Menu Navigation Real Time Data: Inputs REAL TIME DATA DATA Time & Temperature Real Time Data Inputs Data History Outputs Menu/Service/Data/Real Time Data/Inputs • View what the control board sees to speed up Troubleshooting •...
  • Page 133 Indigo NXT Ice Machine Troubleshooting Tips Service Menu Navigation: Service Data Data Service Real Time Data Time & Temperature Inputs Outputs Real Time Data History: •Time & Temperature •Current Day •Inputs •Current Day -1 •Phase/State •Phase/State •Phase/State •Outputs •Current Day -2 (Pre-Chill, Freeze, (Pre-Chill, Freeze, (Pre-Chill, Freeze,...
  • Page 134 Indigo NXT Ice Machine Troubleshooting Tips Service Menu Navigation Diagnostics: Energize all relays DIAGNOSTICS ENABLE ALL RELAYS SELF CHECK 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. •...
  • Page 135 Indigo NXT Ice Machine Troubleshooting Tips Service Menu Navigation Diagnostics: Energize all relays 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) ©...
  • Page 136 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT • 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 •...

  • Page 137: Control Board Diagnostics

    Indigo NXT Ice Machine Troubleshooting Tips Control Board Diagnostics: • Control board Self Check: o Serial Flash: o Real Time Clock: o Ice Thickness Circuit: • Press Menu • Press Service The purpose of this test is to check internal Control Board Circuits of •...
  • Page 138 Indigo NXT Ice Machine Troubleshooting Tips Control Board Diagnostics: • Control board Self Check: o Serial Flash: − Pass = Flash memory tests good. − Fail = Replace Control Board o Real Time Clock: − Pass = Clock tests good. −...
  • Page 139 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT • 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 •...

  • Page 140: Ice Thickness Probe Diagnostics

    Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Adjustment Screw Microphone Function: The ice thickness probe sense ice on the Should be adjusted to maintain 1/8” ice bridge Cube Cells thickness evaporator and signals the control board to start a harvest cycle.
  • Page 141 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Premature Harvest or Freeze Up 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.
  • Page 142 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Premature Harvest or Freeze Up 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.
  • Page 143 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Premature Harvest or Freeze Up 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.
  • Page 144 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Premature Harvest or Freeze Up ITP Wire 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.
  • Page 145 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Premature Harvest or Freeze Up 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.
  • Page 146 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Premature Harvest or Freeze Up 8. Navigate to the “Real Time/Inputs” screen on the interface to view the 100Hz & 120Hz. 9. Observe the initial number range and perform a scratch test. −...
  • Page 147 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Premature Harvest or Freeze Up If the initial numbers displayed do not change or initial numbers did not increase by 3000 during scratch test: • Verify the ice thickness probe connector is properly plugged into the board ( J11 ) and the ice thickness probe wiring is correct .
  • Page 148 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Premature Harvest or Freeze Up If the initial numbers displayed do not change or initial numbers did not increase by 3000 during scratch test: • Verify the ice thickness probe connector is properly plugged into the board ( J11 ) and the ice thickness probe wiring is correct .
  • Page 149 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Harvest Test 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.
  • Page 150 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Harvest Test 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.
  • Page 151 Indigo NXT Ice Machine Troubleshooting Tips Ice Thickness Probe Diagnostics Harvest Test • Remove the ice thickness 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.
  • Page 152 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT • 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 •...
  • Page 153 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics © Welbilt, Inc.
  • Page 154 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics The height of Probe B and C Probes A is the level of are at the same water needed to height to measure (Ref) make ice under Conductivity for normal conditions Diagnosis, Water Miser and Ice Clarity Options.
  • Page 155 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics Assuming the Water Level Probe is clean: Step 1 - Turn the machine to OFF 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.
  • Page 156 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics Assuming the Water Level Probe is clean: Step 1 - Turn the machine to OFF 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.
  • Page 157 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics Step 4 – Navigate to Service/Diagnostics/Inputs/ Wtr Low and Wtr High are displayed. • If “Not” is displayed on both Wtr Low 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.
  • Page 158 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics Step 5 – 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. •...
  • Page 159 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics Voltage Is Not Present at Water Inlet Valve and Water Is Not Contacting the Water Level Probe Step 1 – Verify water is supplied to the ice machine. Step 2 – Navigate to Service/Diagnostics/Input /Wtr Low and Wtr High are displayed.
  • Page 160 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics Step 3 – Disconnect water level probe, observe display Text. A. “Not” is displayed – Proceed to step #4. B. “Sensing” is displayed – replace control board. © Welbilt, Inc.
  • Page 161 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics Step 4 – 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. •...
  • Page 162 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics Wait until the pre-chill cycle begins, then jumper water level probe connection #2 and #3 at the control board. Display reads Wtr High: Sensing (Water level light energizes) and water flow stops.
  • Page 163 Indigo NXT Ice Machine Troubleshooting Tips Water Level Probe Diagnostics • Intermittent Water faults • Connector on wiring harness that goes to the board has loose female terminals. In this particular case, the female connector was loose and would not make connection with the male connector from the water level probe.
  • Page 164 Indigo NXT Ice Machine Troubleshooting Tips 000016053 Replacement Water Level Probe for all Indigo and Indigo NXT: # Water Level Probe replacement assembly includes: • WLP (000015996) • WLP wiring harness (000015998) *To Help improve reliability with Water Level Probe connectors, we have upgraded the wiring harness and plug.
  • Page 165 Indigo NXT Ice Machine Troubleshooting Tips 000016053 Replacement Water Level Probe for all Indigo and Indigo NXT: # 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 Indigo NXT Ice Machine Troubleshooting Tips 000016053 Replacement Water Level Probe for all Indigo and Indigo NXT: # 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 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT • 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 •...
  • Page 168 Indigo NXT Ice Machine Troubleshooting Tips Replacement Control Board Procedure 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. © Welbilt, Inc.
  • Page 169 Indigo NXT Ice Machine Troubleshooting Tips Replacement Control Board Procedure Step by Step Instructions, come with replacement control board: • Manual • USB Transfer Replacement control boards that have not been assigned a model or serial number will default to the following screen when powered up: THE SYSTEM WAS UNABLE TO DETECT A MODEL NUMBER THE FOLLOWING SCREENS WILL PROMPT...
  • Page 170 Indigo NXT Ice Machine Troubleshooting Tips Replacement Control Board Procedure Manual Procedure 1. Menu/Service/Replacement Control Board/Manual 2. “Input Model”, add characters until the model number is complete. 3. Press the right arrow After the Model Number is entered 4. “Input Serial#”, add characters until the serial number is complete.
  • Page 171 Indigo NXT Ice Machine Troubleshooting Tips Replacement Control Board Procedure USB Transfer: 1. Prior to removing the faulty control board, Export Data to Flash Drive. Install Flash Drive into Control Board USB Navigate to Menu/Service/USB/Export to USB Export four Files −...
  • Page 172 Indigo NXT Ice Machine Troubleshooting Tips Replacement Control Board Procedure USB Transfer: 1. Prior to removing the faulty control board, Export Data to Flash Drive. Install Flash Drive into Control Board USB Navigate to Menu/Service/USB/Export to USB Export four Files −...
  • Page 173 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT: Recommended & Approved USB flash drives Manufacture Model/Drive Capacity USB/Vender ID/Device ID Sandisk Cruzer Glide 16GB (FAT32) VID=0781 & PID=5575 REV0100 Walmart-Onn Onn Brand 64 GB (FAT32) VID=21C4 & PID=8005 REV0100 Kingston Data Traveler 8 GB 100 G3 (FAT32) VID=0951 &...
  • Page 174 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT https://www.manitowocice.com/Service/Indig o-Firmware-Updates#Firmware-Instructions • Service Menu Navigation o Alert Log o Real Time Data o Inputs o Energize all relays • Control Board Diagnostic Firmware Upgrade Video • Ice Thickness Probe Diagnostic • Water Level Probe Diagnosis •...

  • Page 175: Firmware Update Procedure

    Indigo NXT Ice Machine Troubleshooting Tips Firmware Update Procedure Install Firmware into Indigo NXT Control Board: 1. Navigate to (Menu/Service/USB/Upgrade Firmware). 2. Insert Flash Drive with Firmware. 3. Press “UPGRADE FIRMWARE”. • Wait for Completion! This may take up Please do not remove the USB flash Please do not remove the USB flash Please do not remove the USB flash Please do not remove the USB flash...
  • Page 176 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT • 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 •...
  • Page 177 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT: Before Calling for Technical Support By verifying these steps and having this information available, technical support can help with a faster and more accurate diagnosis. • Verify the ice machine is installed correctly. •...
  • Page 178 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT: Before Calling for Technical Support By verifying these steps and having this information available, technical support can help with a faster and more accurate diagnosis. • Check for the water curtain/damper, closed and magnets still attached. •...
  • Page 179 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT: Before Calling for Technical Support By verifying these steps and having this information available, technical support can help with a faster and more accurate diagnosis. o Freeze Cycle Long: Check the condenser and verify the condenser is clean and air temperature entering the condenser.
  • Page 180 Indigo NXT Ice Machine Troubleshooting Tips Indigo NXT: Before Calling for Technical Support NOTE: If you suspect a refrigeration problem and need technical support, please have the following information available. Thermistor Temperatures are to be used as a reference. Sometimes a more accurate surface mount thermometer is needed for an accurate diagnosis.
  • Page 181 Review • 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 •...
  • Page 182 Service Training Update: Manitowoc Ice Training videos Manitowoc Ice Indigo NXT - Detailed Cleaning Technical Training Videos Indigo NXT-Firmware Upgrade Indigo NXT PM Cleaning RN-RF Cleaning © Welbilt, Inc. © Welbilt, Inc.
  • Page 183 CLEVELAND FRYMASTER® MANITOWOC® CONVOTHERM® GARLAND® MERCO® DELFIELD® KOLPAK® MERRYCHEF® FITKITCHEN LINCOLN MULTIPLEX® SUPPORTED BY KITCHENCARE® Thank You For Attending! © Welbilt, Inc.

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