True Ice Series Service Manual
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True Ice Series Service Manual

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True Manufacturing Co., Inc.
TM
True Manufacturing Co., Inc.
2001 East Terra Lane • O'Fallon, Missouri 63366-4434
(636) 240-2400 • FAX: (636)-272-2408
International FAX: (636)-272-7546 • (800)-325-6152
Parts Department: (800)-424-TRUE (424-8783)
Parts Department FAX: (636)-272-9471
Contact Us:
Warranty Phone +1 855-299-3510
Warranty Email CommercialIceWarrantyInquiries@truemfg.com
Technical Phone +1 888-783-1429
Technical Email CommercialIce@truemfg.com
TEC_TM_198 | REV. A | EN
03/26/2024
SERVICE MANUAL
TRUE ICE
SERVICE MANUAL
TRUE ICE
Original Instructions

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  • Page 1 SERVICE MANUAL True Manufacturing Co., Inc. TRUE ICE True Manufacturing Co., Inc. 2001 East Terra Lane • O’Fallon, Missouri 63366-4434 SERVICE MANUAL (636) 240-2400 • FAX: (636)-272-2408 International FAX: (636)-272-7546 • (800)-325-6152 TRUE ICE Parts Department: (800)-424-TRUE (424-8783) Original Instructions...

  • Page 2: Table Of Contents

    TRUE ICE SERVICE MANUAL truemfg.com Contents Preface Adjust Ice Thickness ................40 Nomenclature .....................3 Adjust Water Quality (purge adjustment) ......41 Covered Models ..................4 Adjust Ice Level Sensor (Time of Flight)/Bin Level ... 42 Water Filter Setup .................. 44 Safety Information Reminder Settings ................

  • Page 3: Preface

    Version (x100 lb/day) M (Modular) S (Small) U (Undercounter) M (Medium) L (Large) Option 0 (No TrueZone; no True Connect) Model Family Width Condenser Type 1 (TrueZone; True Connect) TCIM (True Cube Ice Modular) (in) A (Air) 2 (TrueZone; No True Connect) Version 3 (No TrueZone;...

  • Page 4: Covered Models

    TRUE ICE SERVICE MANUAL truemfg.com Preface Covered Models 22" Models TCIM/TI-422 TCIM/TI-522 TCIM/TI-622 Page 4 of 96 03/26/2024 P#857284 TEC_TM_198 | REV. A | EN...
  • Page 5 TRUE ICE SERVICE MANUAL truemfg.com Preface 30" Models TCIM/TI-430 TCIM/TI-530 TCIM/TI-630 TEC_TM_198 | REV. A | EN 03/26/2024 Page 5 of 96...

  • Page 6: Safety Information

    TRUE ICE SERVICE MANUAL truemfg.com Safety Information Safety Information The warning, guidelines, and recommendations within this document are meant to prevent appliance damage, injury, or death. Please carefully read all warnings, guidelines, and recommendations before proceeding to ensure the continued safe use and maintenance of your True ice machine.

  • Page 7: Basic Safety & Operation Warnings

    TRUE ICE SERVICE MANUAL truemfg.com Safety Information (cont.) Additional Symbols Additional Symbols symbol; alerts reader Mandatory action alert to required or recommended actions. Obey all Wear protection. messages and recommendations following this symbol to avoid appliance or product damage. not related to hazards or Important information NOTICE ›...

  • Page 8: Personal Injury Warnings

    Safety Information (cont.) Personal Injury Warnings Only qualified technicians should install and service the appliance. For assistance finding a qualified technician, please visit our Service Company Locator at truemfg.com/support/service-locator/. True is solely the appliance manufacturer and is not responsible for installation. DANGER! allow children to play with or in the appliance.

  • Page 9: Hydrocarbon Refrigerant Warnings

    Moving parts can cut. Keep hands clear when panels are removed. Moving parts hazard! Hydrocarbon Refrigerant Warnings TRUE appliances use hydrocarbon refrigerant (R-290/513A/600a). Check the nameplate or rating label to identify the ice machine's refrigerant. DANGER! Risk of fire or explosion! Flammable refrigerant used.

  • Page 10: Ice Machine Disposal Warnings

    TRUE ICE SERVICE MANUAL truemfg.com Safety Information (cont.) Ice Machine Disposal Warnings DANGER! Risk of fire or explosion! • Flammable refrigerant and insulation used. Dispose of in accordance with all applicable laws, codes, and regulations. Follow all safety precautions associated with handling flammable refrigerant and insulation.

  • Page 11: Electrical Safety Warnings

    True will not warranty the following: • Compressor failures due to improper incoming voltage. For more details, see True's full warranty statement. Find a copy of the wiring diagram with our Serial Number Lookup at truemfg.com/support/serial-number-lookup. TEC_TM_198 | REV. A | EN...

  • Page 12: Good Refrigeration Practices

    TRUE ICE SERVICE MANUAL truemfg.com Good Refrigeration Practices Good Refrigeration Practices Good refrigeration practices will always start with good detective work to find out what caused the failure so we can eliminate the possibility of a repeat failure. Below is a step by step set of procedures we would recommend is followed when repairing a refrigeration system.

  • Page 13: R290 Frequently Asked Questions

    For True warranty repairs, you can get refrigerant directly from True offers the Hydrocarbon Service Kit P#830699 True Parts. You can also source the refrigerant from an HVAC (pictured below) supply house or a company that sells gasses and welding supplies.

  • Page 14: Ice Machine Specifications

    TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Specifications Ice Machine Specifications See specifications by model and model performance data starting System Refrigerant Charge on pg. 86. See Specification & Performance Data starting on pg. 86. Clearances Air-cooled ice machine clearances Heat of Rejection See Specification &...

  • Page 15: Plumbing Connection Requirements

    For further information, please see ul.com/database. Water filters recommended! TRUE recommends water filters for all ice machines. Water filters help remove particulate that reduces operating efficiency and equipment life. Regularly changing water filters is essential for optimum-quality ice, reduced maintenance, and prolonged equipment operation.

  • Page 16: Drain Requirements

    TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Specifications (cont.) Drain Requirements Always install drain lines with a 2” (50.8 mm) vertical air gap between the floor and the line’s end. See fig. 1; figure is not to scale. Ice Storage Bin Drain 2”...

  • Page 17: Electrical Requirements

    TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Specifications (cont.) Electrical Requirements NOTICE! Stinger, Wild or Hot legs should not be used in single phase application units. If present in a three-phase unit, it should NOTE: be wired so that the stinger or hot leg phase of voltage is fed directly to the compressor.
  • Page 18 TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Specifications (cont.) Min./Max. Voltage Supply The opening for the power supply connection is 7/8" diameter to fit a 1/2" trade size conduit. Fig. 1. Make the electrical connections inside the ice machine's junction box. Be sure to use strain reliefs. Always use the green grounding screw when making electrical connections.
  • Page 19 TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Specifications (cont.) Wire Gauge Chart Wire gauge chart (115V) Wire gauge chart (230V) Distance in Feet to Center of Load Distance in Feet to Center of Load Volts Volts AMPS AMPS TEC_TM_198 | REV. A | EN...

  • Page 20: Plan Views & Dimensions

    TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Specifications (cont.) Plan Views & Dimensions TCIM/TI-422/522 Water Inlet 11-3/16" 22-7/32" 1/2" FNPT (565 mm) (284 mm) 10-5/32" (258 mm) 22-3/16" Water Outlet (563 mm) 3/4" FNPT 7/8" (22 mm) 8-15/32" (215 mm)
  • Page 21 TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Specifications (cont.) TCIM/TI-430/530/630 Water Inlet 30-3/16" 11-3/16" 2-9/32" 1/2" FNPT (767 mm) (284 mm) (58 mm) 22-3/16" Water Outlet (563 mm) 3/4" FNPT 7/8" (22 mm) 13-5/8" (346 mm) Front Rear Left Right 1-15/32"...
  • Page 22 TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Specifications (cont.) TCIM/TI-622 Water Inlet 22-1/4" 11-3/16" 1/2" FNPT (565 mm) (284 mm) 14-5/32" (360 mm) 27-3/16" (691 mm) Water Outlet 3/4" FNPT 7/8" (22 mm) 8-15/32" (215 mm) Front Rear Plan View...
  • Page 23 TRUE ICE SERVICE MANUAL truemfg.com NOTES TEC_TM_198 | REV. A | EN 03/26/2024 Page 23 of 96...

  • Page 24: Component Identification

    TRUE ICE SERVICE MANUAL truemfg.com Component Identification Component Identification 30" Top View High Pressure Control Low Side Transducer Condenser Fan Motor Inlet Water Valve Biozone/UV System High Side Transducer Page 24 of 96 03/26/2024 P#857284 TEC_TM_198 | REV. A | EN...

  • Page 25: 22" Top View

    TRUE ICE SERVICE MANUAL truemfg.com Component Identification (cont.) 22" Top View Condenser Access Panel Condenser Fan Motor Condenser Fan Motor Inlet Water Line Biozone/UV System Water Fill Line Water Pump Motor Water Distributor Water Level Sensor Water Circuit Inlet Water Valve T3 Temperature Probe 1/2"...

  • Page 26: Heat Exchanger/Uv Bulb

    TRUE ICE SERVICE MANUAL truemfg.com Component Identification Heat Exchanger/UV Bulb UV Bulb/Biozone Heat Exchanger Condenser Access Panel Electrical 30" Electrical Removable Access Panel Inlet Water Valve Circuit Breaker Control Board Voltage Converter True Connect Monitoring System Compressor Drain Valve Page 26 of 96...
  • Page 27 TRUE ICE SERVICE MANUAL truemfg.com Component Identification (cont.) Electrical (cont.) 22" Electrical True Connect Monitoring System Proximity Switch Electrical Box TOF/Bin Level Sensor Right Side View Misc. Electrical Condenser Access T2 Ambient Probe Pump Motor Access Condenser Fan Motor Proximity Switch Access TOF/Bin Level Control TEC_TM_198 | REV.

  • Page 28: Temperature Probe Locations

    TRUE ICE SERVICE MANUAL truemfg.com Component Identification Temperature Probe Locations T-1 Temperature Probe Located on the evaporator outlet Left Side View Top View T-2 Temperature Probe Located on the Condenser Fan Mounting Bracket Reads ambient temperatures Right Side View Page 28 of 96...

  • Page 29: Refrigerant System

    TRUE ICE SERVICE MANUAL truemfg.com Component Identification (cont.) Temperature Probe Locations (cont.) T-3 Temperature Probe Located in the Distributer Water Supply Line. Used to measure Sump Tank water temps. Top View T-4 Temperature Probe Located on the Water Inlet Line.
  • Page 30 TRUE ICE SERVICE MANUAL truemfg.com Component Identification Refrigeration System (cont.) Filter Drier Page 30 of 96 03/26/2024 P#857284 TEC_TM_198 | REV. A | EN...

  • Page 31: Rear View 30

    TRUE ICE SERVICE MANUAL truemfg.com Component Identification (cont.) Rear View 30" Power Cord Knockout Water Inlet Fitting Electrical Box 1/2" FPT Access Panel Condenser True Connect Monitoring System Water Drain Fitting 3/4" FPT Rear View 22" Electrical Box Condenser Water Inlet Fitting 1/2"...

  • Page 32: Display Modes And Operation

    TRUE ICE SERVICE MANUAL truemfg.com Display Modes and Operation Display Modes and Operation Home Screen Manual Screen The default display screen. Allows for manual operation of the four modes pictured. Parts of the main screen Parts of the manual screen Make Ice;...

  • Page 33: Real Time Screen

    TRUE ICE SERVICE MANUAL truemfg.com Display Modes and Operation (cont.) Real Time Screen Alarm Log Screen Displays current status of ice machine sensors and components. Shows previous recorded alarms. Green indicates component is energized. Parts of the REAL TIME screen...

  • Page 34: Menu Screen

    TRUE ICE SERVICE MANUAL truemfg.com Display Modes and Operation (cont.) Menu Screen Info Screen The default display screen. Parts of the menu screen Parts of the info screen Password Protected Access Level Login Real Time Graph Set Language, Temperature Format, Time Format and Date...
  • Page 35 TRUE ICE SERVICE MANUAL truemfg.com Display Modes and Operation (cont.) Cycle History Daily Ice Level Displays the last 5 freeze and harvest times. Graphs the ice level over a 24-hour period. Weekly Ice Level Parts of the cycle history screen Graphs the ice level over the past seven days.

  • Page 36: Date, Hour, Language Screen

    TRUE ICE SERVICE MANUAL truemfg.com Display Modes and Operation (cont.) Date, Hour, Language Screen Parts of the date, hour, language screen Change the language Download an advertisement to be shown after inactivity Change between 12-hour and 24-hour format Change the date...
  • Page 37 TRUE ICE SERVICE MANUAL truemfg.com NOTES TEC_TM_198 | REV. A | EN 03/26/2024 Page 37 of 96...

  • Page 38: Ice Machine Adjustments

    TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Adjustments Ice Machine Adjustments Access Codes There are four access levels: USER (0), ADMIN (1), ADMIN (2), and ADMIN (3). The USER (0) level is designed with your customer in mind. It allows them to see the mode of operation and screen saver but restricts any function that would affect the ice machine. The ADMIN (1) level is for the ice machine owner.

  • Page 39: Function Access Levels

    TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Adjustments (cont.) Function Access Levels Function access levels Functions Sub-Functions USER (0) ADMIN (1) ADMIN (2) MAKE ICE Turning the ice machine ON or OFF CLEAN Reverse Condenser Fan FILL MANUAL DRAIN CIRCULATE...

  • Page 40: Adjust Ice Thickness

    TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Adjustments (cont.) Adjust Ice Thickness Watch at least three cycles and confirm that the bridge thickness is correct, (approximately 1/8" (3.18 mm) as shown in fig. 1). The bridge thickness is set at the factory. To adjust, please see instructions below.

  • Page 41: Adjust Water Quality (Purge Adjustment)

    The unit default setting is 0 to maintain energy star operation. If you are unsure of your water quality, check your water with a water quality test kit (not provided by True). Increasing the “levels of water hardness or scale” setting increases the amount of water flushed during harvest.

  • Page 42: Adjust Ice Level Sensor (Time Of Flight)/Bin Level

    TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Adjustments (cont.) Adjust Ice Level Sensor (Time of Flight)/Bin Level 1. In the upper right corner of the screen, press Menu 2. In the Menu screen, press TOF. 3. In the Ice level sensor screen, select the appropriate preset value for your ice storage unit.
  • Page 43 • Empty Bin Distance (EBD) is the distance in centimeters between the sensor and the bottom of the ice storage unit. See fig. 1. NOTICE › True recommends only adjusting EBD. Fig. 1. FBD vs. EBD. TEC_TM_198 | REV. A | EN 03/26/2024...

  • Page 44: Water Filter Setup

    3. In the Water Filter screen, select the appropriate water filter for your application. True offers Standard and Platinum water True recommends water filters for all ice machines. Water filters filtration systems. If using a non-True water filter, enter the help remove particulate that reduces operating efficiency and water capacity under CUSTOM.
  • Page 45 TRUE ICE SERVICE MANUAL truemfg.com Ice Machine Adjustments (cont.) 4. Press anywhere on the desired parameter's row. Then, with the 2. In the Menu screen, press Parameter Settings number pad, enter the desired setting. 3. With the scroll bar, scroll to the desired parameter: 5.

  • Page 46: Sequence Of Operations

    TRUE ICE SERVICE MANUAL truemfg.com Sequence of Operations Sequence of Operations Self-Diagnostics: ² Harvest ensures no Unit will not drain Ensures components are working correctly ice on the evaporator Harvest Time: if water level is by using the water level sensor to monitor...
  • Page 47 TRUE ICE SERVICE MANUAL truemfg.com Sequence of Operations (cont.) Beginning of During harvest, if the proximity switch Water Water freeze cycle Pump has not opened in 5 min (PM4) Pump Water Compressor Only Pre-Chill Assisted ¹² Harvest ¹³On Remains in Prechill until Low Side PSIG = 40 psi (PS5) ¹³...

  • Page 48: Maintenance & Cleaning

    TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning Maintenance & Cleaning Recommended Maintenance Schedule The maintenance schedule below is a guideline. More frequent maintenance may be required depending on water quality, environment, and local sanitation regulations. Recommended cleaning schedule Recommended Maintenance Schedule...

  • Page 49: Panel Removal

    TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning (cont.) Panel Removal 1. Remove the front panel screws. Then, open the front panels. See fig. 1. NOTICE › Panels cannot be removed without opening the front panels. 2. Carefully lift the front of the top panel. Then, slide the top panel towards the ice machine's rear and lift the panel. See fig. 2.

  • Page 50: Sump Tank Removal

    TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning Sump Tank Removal 1. Open the front panel. See “Panel Removal” (pg. 49). 2. Remove the water curtain and the damper. See fig. 1. Water Curtain 3. Remove the drain fitting under the sump tank. See fig. 2.

  • Page 51: Recommended Descaling & Sanitizing Procedures

    TRUE recommends using TRUE Ice Machine Descaler. To purchase, contact TRUE Parts Department at 800-424-8783 or PartsInquiries@TrueMFG.com If using a non-True descaler (Nickel-safe) recommended dilution for soaking parts is 3 fl oz (88.7 mL) per 1 gal (3.78 L) and recommended amount for evaporator cleaning is 6-8 fl oz (177.4-236.6 mL).
  • Page 52 TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning Descaling Parts Removal If necessary, cancel the descaling or sanitizing sequences by pressing cancel . However, the sequences cannot be cancelled after cleaner or sanitizer has been added to the sump and OK has been pressed.
  • Page 53 HARVEST sequence to ensure there is no ice on the evaporator and will shut off before the cleaning sequence continues. 11. Prepare a solution of 10 fl oz (296 mL) TRUE ice machine descaler to 1 gal (3.8 L) of warm water. NOTICE ›...
  • Page 54 TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning 15. With the remaining solution and a soft nylon bristle brush, cloth, Descaling (cont.) or sponge, thoroughly clean all food zone areas (shaded 12. Remove parts for cleaning. See below. components) of the ice machine. These areas include the following: •...
  • Page 55 TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning (cont.) Sanitizing 4. Reinstall the sanitized components and wait 10 minutes. 1. Prepare a solution of 1.5 fl oz (44mL) chlorine bleach (5.25% 5. In the home screen, press CLEAN sodium hypochlorite) to 3 gal. (11.4 L) of warm water. Use half of the solution to sanitize all the removed parts from the cleaning procedure.
  • Page 56 TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning 10. After adding chlorine bleach (5.25% sodium hypochlorite), 8. Wait for the ice machine to run through the PRE-CLEANING press OK. The display will then show the sequence status. sequence (FILL, PUMP, DRAIN, and HARVEST). If there is enough water in the sump at the start of CLEAN, it will go through a NOTICE ›...

  • Page 57: Exterior Cleaning

    TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning (cont.) Exterior Cleaning USER ACTION! If a greasy residue remains on the surface, use a mild dish soap and water solution with a damp cloth. Wipe dry with a clean, soft cloth.
  • Page 58 TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning Condenser Coil Cleaning (cont.) 1. Disconnect power to the ice machine or turn off the power supply. 2. Remove the front, top, and side panels. See “Panel Removal” (pg. 49). 3. Remove the top condenser plate. See fig. 1.

  • Page 59: Air Filter Cleaning

    TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning (cont.) Air Filter Cleaning Clean with compressed air, water, or degreaser. See filter locations and screw locations in the figures below. 22" Air Filter Location Filter Location 22" Front View 22" Side View 30"...

  • Page 60: Truezone™ Uv Bulb Replacement

    TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning TrueZone™ UV Bulb Replacement WARNING! Optical radiation Hazard! UV light! Invisible laser radiation. Do not look directly at light. Always disconnect power before servicing the lamp. Electrical shock or burn hazard! High Voltage Inside! •...

  • Page 61: Cleanup Procedure For Accidental Uv Lamp Breakage

    TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning (cont.) Fig. 1. Front panel screw locations. Fig. 2. TRUEZONE UV system top view. Fig. 3. TRUEZONE UV system side view. Fig. 4. Rubber seal notch. TRUEZONE bracket screw locations. Cleanup Procedure for Accidental Lamp Breakage...

  • Page 62: General Surface Cleaning

    TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning During Cleanup... 1. Thoroughly collect broken glass and visible powder. WARNING! Do not vacuum broken glass fragments! Vacuuming is not recommended unless broken glass remains after all other cleanup steps have been taken. Vacuuming could spread mercury-containing powder or mercury vapor.

  • Page 63: Winterizing

    TRUE ICE SERVICE MANUAL truemfg.com Maintenance & Cleaning (cont.) Winterizing If storing your ice machine for an extended time or in sub-freezing temperatures, winterize the appliance. NOTICE! If the ice machine will not be used for 2-3 days under normal conditions turn the unit off 1.

  • Page 64: Troubleshooting & Diagnosis

    TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis Troubleshooting & Diagnosis Long Freeze/Long Harvest Problem Causes Possible Solutions Long Freeze Lack of maintenance • Air filter Clean (or replace) condenser air filter • Condenser coil Clean condenser coil • Clogged water filter...
  • Page 65 TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis (cont.) Problem Causes Possible Solutions Long Freeze (cont.) Refrigeration system related (cont.) • Flooding/starving TXV Check TXV bulb clamp/replace TXV • Leaking harvest valve Replace harvest valve • Compressor (weak valves) Replace compressor •...

  • Page 66: Alarms

    TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis Alarms Code Display Alarms Diagnosis User Action ALARM T1 Input Open or shortened probe Replace probe ALARM T2 Input Open or shortened probe Replace probe ALARM T3 Input Open or shortened probe...
  • Page 67 TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis (cont.) Code Display Alarms Diagnosis User Action ALARM Long Purge Water level in sump did not drain to Check voltage to the drain valve coil; verify the proper level within 4 min the drain is clear;...

  • Page 68: Flow Charts

    TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis Flow Charts No Harvest/Frozen In Long harvest, normal ice fill pattern. Ice will not fall from evaporator. May shut down on E26 (Long Harvest) By the end of the freeze See "Long Harvest:...
  • Page 69 TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis (cont.) Not Harvesting/Assisted Harvest Long harvest, normal ice fill pattern. Ice will not come off evaporator. May shut down on E26 Exceeded Harvest Cycle Time Limit See "Frozen in" flow chart (pg. 68)
  • Page 70 TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis Unit Shutting Off Is the Display Energized Is the alert triangle Press the showing on the Press info icon "Caution" Triangle home screen? Icon Is the 15 Amp breaker on the Reset breaker...
  • Page 71 TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis (cont.) Drain Valve Water is not draining from the Sump Tank. Unit may be off on Purge alarm With the unit off, is Is the water level water present in the below 4mm?
  • Page 72 TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis Fill Valve (WIV) Water is not filling the sump tank; Unit could be off displaying H 2 O alarm Is the water supply Turn supply water valve valve on? Does the ice on and cycle unit.

  • Page 73: Water Level Sensor

    TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis (cont.) Water Level Sensor Proximity Switch (Bin Switch) The water level sensor uses pneumatic technology to sense 1. Turn the unit off at the touchscreen. pressure changes determined by the water level in the sump tank.

  • Page 74: Temperature Probes

    TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis Temperature Probes Locations T-1 Temperature Probe Located on the evaporator outlet Left Side View Top View T-2 Temperature Probe Located on the Condenser Fan mounting bracket Reads ambient temperatures Right Side View...
  • Page 75 TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis (cont.) Locations (cont.) T-3 Temperature Probe Located in the Distributer Water Supply Line. Used to measure Sump Tank water temps. Top View T-4 Temperature Probe Located on the Water Inlet Line. Used to measure incoming water temps.

  • Page 76: Transducer Diagnosis

    TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis Transducer Diagnosis Read voltage between the black and white wires at the control board. See fig. 1 Low Pressure Transducer High Pressure Transducer White Black Fig. 1. Measure between the black and white wires.

  • Page 77: Water Regulating Valve (Water-Cooled Units Only)

    TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis (cont.) Water Regulating Valve (Water-Cooled Units Only) USER ACTION! Do not unsolder a defective component. Cut defective components out of the refrigeration system. The water regulating valve maintains the freeze cycle discharge pressure.

  • Page 78: Truezone™ (Uv System)

    TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis TrueZone™ (UV System) Optional accessory. UV bulb LED status window Ozonated Air to food zone 12VDC Incoming Voltage Air Inlet from bin CAN Connection (Connects to Board) LED Indications: System Health: Steady Blue - Ballast On and Operating correctly...

  • Page 79: R290 Temperature Pressure Chart

    TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis (cont.) R-290 Temperature Pressure Charts Temperature Pressure Temperature Pressure Temperature Pressure ˚F(C˚) psig ("Hg) ˚F(C˚) psig ("Hg) ˚F(C˚) psig ("Hg) -92.57 (-69.21) (22) 5.52 (-14.71) 42.36 (5.76) -85.05 (-65.03) (20) 6.74 (-14.03) 43.11 (6.17)
  • Page 80 TRUE ICE SERVICE MANUAL truemfg.com Troubleshooting & Diagnosis R-290 Temperature Pressure Charts (cont.) Temperature Pressure ˚F(C˚) psig ("Hg) 127.3 (52.94) 128.9 (53.83) 130.4 (54.67) 132.0 (55.56) 133.5 (56.39) 135.0 (57.22) 136.5 (58.06) 137.9 (58.83 139.4 (59.67) 140.8 (60.44) 142.2 (61.22) 143.6 (62.00)
  • Page 81 TRUE ICE SERVICE MANUAL truemfg.com NOTES TEC_TM_198 | REV. A | EN 03/26/2024 Page 81 of 96...

  • Page 82: Diagrams

    TRUE ICE SERVICE MANUAL truemfg.com Diagrams Diagrams Wiring Diagrams & Control Layout WARNING! • Control board is fragile. Handle carefully. • The control board contains integrated circuits, which are susceptible to failure due to static discharge. It is especially important to touch the metal part of the ice machine when handling or replacing the control board.
  • Page 83 TRUE ICE SERVICE MANUAL truemfg.com Diagrams (cont.) Fig. 2. Wiring diagram. Fig. 3. Control board assembly. TEC_TM_198 | REV. A | EN 03/26/2024 Page 83 of 96...

  • Page 84: Refrigeration Freeze Circuit

    TRUE ICE SERVICE MANUAL truemfg.com Diagrams (cont.) Refrigeration Freeze Circuit High Pressure Switch Filter Drier High-side Transducer Hot Gas/Harvest Valve Low-side Transducer Heat Exchanger TXV (thermostatic expansion valve) Page 84 of 96 03/26/2024 P#857284 TEC_TM_198 | REV. A | EN...

  • Page 85: Water Circuit

    TRUE ICE SERVICE MANUAL truemfg.com Diagrams (cont.) Water Circuit Water Inlet Valve T-4 Probe (incoming water temp) 1/2" FPT Incoming Water T-3 Probe (sump water temp) Fill Tube Circulation Pump Water Level Sensor TEC_TM_198 | REV. A | EN 03/26/2024...
  • Page 86 TRUE ICE SERVICE MANUAL truemfg.com Air-Cooled Ice Machine Specifications & Performance Data Air-Cooled Ice Machine Specifications & Performance Data NOTICE! All pressures are recorded five (5) min into the freeze cycle. Page 86 of 96 03/26/2024 P#857284 TEC_TM_198 | REV. A | EN...

  • Page 87: Air Cooled Ice Machine Specifications & Performance Data

    TRUE ICE SERVICE MANUAL truemfg.com Air-Cooled Ice Machine Specifications & Performance Data (cont.) TCIM-422-HA1-A/TI-422-MA-S1-A AC Supply Voltage (V/Hz/Ph) 115/60/1 Amperage [5 min Freeze AT 104˚F (40˚C) / WT 80˚F (27˚C) Minimum Circuit Ampacity Maximum Fuse Size Electrical Consumption (kWh/100lb) [AT 90˚F (32˚C) / WT 70˚F (21˚C)

  • Page 88: Tcim-430-Ha1-A/Ti-430-Ma-S1-A

    TRUE ICE SERVICE MANUAL truemfg.com Air-Cooled Ice Machine Specifications & Performance Data TCIM-430-HA1-A/TI-430-MA-S1-A AC Supply Voltage (V/Hz/Ph) 115/60/1 Amperage [5 min Freeze AT 104˚F (40˚C) / WT 80˚F (27˚C) Minimum Circuit Ampacity Maximum Fuse Size Electrical Consumption (kWh/100lb) [AT 90˚F (32˚C) / WT 70˚F (21˚C) 3.75...

  • Page 89: Tcim-522-Ha1-A/Ti-522-Ma-S1-A

    TRUE ICE SERVICE MANUAL truemfg.com Air-Cooled Ice Machine Specifications & Performance Data (cont.) TCIM-522-HA1-A/TI-522-MA-S1-A AC Supply Voltage (V/Hz/Ph) 115/60/1 Amperage [5 min Freeze AT 104˚F (40˚C) / WT 80˚F (27˚C) Minimum Circuit Ampacity Maximum Fuse Size Electrical Consumption (kWh/100lb) [AT 90˚F (32˚C) / WT 70˚F (21˚C)

  • Page 90: Tcim-530-Ha1-A/Ti-530-Ma-S1-A

    TRUE ICE SERVICE MANUAL truemfg.com Air-Cooled Ice Machine Specifications & Performance Data TCIM-530-HA1-A/TI-530-MA-S1-A AC Supply Voltage (V/Hz/Ph) 115/60/1 Amperage [5 min Freeze AT 104˚F (40˚C) / WT 80˚F (27˚C) Minimum Circuit Ampacity Maximum Fuse Size Electrical Consumption (kWh/100lb) [AT 90˚F (32˚C) / WT 70˚F (21˚C) 3.68...

  • Page 91: Tcim-622-Ha1-A/Ti-622-Ma-S1-A

    TRUE ICE SERVICE MANUAL truemfg.com Air-Cooled Ice Machine Specifications & Performance Data (cont.) TCIM-622-HA1-A/TI-622-MA-S1-A AC Supply Voltage (V/Hz/Ph) 115/60/1 Amperage [5 min Freeze AT 104˚F (40˚C) / WT 80˚F (27˚C) 10.1 Minimum Circuit Ampacity Maximum Fuse Size Electrical Consumption (kWh/100lb) [AT 90˚F (32˚C) / WT 70˚F (21˚C)

  • Page 92: Tcim-630-Ha1-A/Ti-630-Ma-S1-A

    TRUE ICE SERVICE MANUAL truemfg.com Air-Cooled Ice Machine Specifications & Performance Data TCIM-630-HA1-A/TI-630-MA-S1-A AC Supply Voltage (V/Hz/Ph) 115/60/1 Amperage [5 min Freeze AT 104˚F (40˚C) / WT 80˚F (27˚C) Minimum Circuit Ampacity Maximum Fuse Size Electrical Consumption (kWh/100lb) [AT 90˚F (32˚C) / WT 70˚F (21˚C)

  • Page 93: Warranty

    TRUE ICE SERVICE MANUAL truemfg.com Warranty Information (USA & Canada Only) Warranty Information To view and download the Warranty Information for USA & Canada, please scan the QR code below. TEC_TM_198 | REV. A | EN 03/26/2024 Page 93 of 96...
  • Page 94 TRUE ICE SERVICE MANUAL truemfg.com NOTES Page 94 of 96 03/26/2024 P#857284 TEC_TM_198 | REV. A | EN...
  • Page 95 TRUE ICE SERVICE MANUAL truemfg.com NOTES TEC_TM_198 | REV. A | EN 03/26/2024 Page 95 of 96...
  • Page 96 truemfg.com 03/26/2024 P#857284 TEC_TM_198 | REV. A | EN DF_227547_02.24...

This manual is also suitable for:

Tcim/ti-422Tcim/ti-522Tcim/ti-622Tcim/ti-430Tcim/ti-530Tcim/ti-630

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