Manitowoc IDF0300A, IYF0300A, IDF0300W, IYF0300W, IDT0300A Service Manual

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Page 1

Air/Water/Remote Condenser Ice Machines

Technician’s Handbook

Part Number: 000015430 Rev 04 4/22

Page 2

Safety Notices

Read these precautions to prevent personal injury:

• Read this manual thoroughly before operating, installing or performing maintenance on the equipment. Failure to follow instructions in this manual can cause property damage, injury or death.

• Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty.

• Proper installation, care and maintenance are essential for maximum performance and trouble-free operation of your equipment.

• Visit our website www.manitowocice.com for manual updates, translations, or contact information for service agents in your area.

This equipment contains high voltage electricity and refrigerant charge. Installation and repairs are to be performed by properly trained technicians aware of the dangers of dealing with high voltage electricity and refrigerant under pressure. The technician must also be certified in proper refrigerant handling and servicing procedures. All lockout and tag out procedures must be followed when working on this equipment.

• This equipment is intended for indoor use only. Do not install or operate this equipment in outdoor areas.

• As you work on this equipment, be sure to pay close attention to the safety notices in this handbook. Disregarding the notices may lead to serious injury and/or damage to the equipment.

Page 3

DEFINITIONS

DANGER

Indicates a hazardous situation that, if not avoided, will result in death or serious injury. This applies to the most extreme situations.

Warning

Indicates a hazardous situation that, if not avoided, could result in death or serious injury.

Caution

Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.

Notice

Indicates information considered important, but not hazard-related (e.g. messages relating to property damage).

NOTE: Indicates useful, extra information about the procedure you are performing.

Page 4

Warning

Follow these electrical requirements during installation of this equipment:

• All field wiring must conform to all applicable codes of the authority having jurisdiction. It is the responsibility of the end user to provide the disconnect means to satisfy local codes. Refer to rating plate for proper voltage.

• This appliance must be grounded.

• This equipment must be positioned so that the plug is accessible unless other means for disconnection from the power supply (e.g., circuit breaker or disconnect switch) is provided.

• Check all wiring connections, including factory terminals, before operation. Connections can become loose during shipment and installation.

Page 5

Warning

Follow these precautions to prevent personal injury during installation of this equipment:

• Installation must comply with all applicable equipment fire and health codes with the authority having jurisdiction.

• Connect to a potable water supply only.

• To avoid instability the installation area must be capable of supporting the combined weight of the equipment and product. Additionally the equipment must be level side to side and front to back.

• Remove all removable panels before lifting and installing and use appropriate safety equipment during installation and servicing. Two or more people are required to lift or move this appliance to prevent tipping and/or injury.

• Do not damage the refrigeration circuit when installing, maintaining or servicing the unit.

• This equipment contains refrigerant charge. Installation of the line sets must be performed by a properly trained and EPA certified refrigeration technician aware of the dangers of dealing with refrigerant charged equipment.

• Ice machines require a deflector when installed on an ice storage bin. Prior to using a non-OEM ice storage system with this ice machine, contact the bin manufacturer to assure their ice deflector is compatible.

• Prior to installing a non-OEM ice storage system with this ice machine, follow the manufacturers installation procedures and verify the location and installation meets the local/national mechanical codes and stability requirements.

Page 6

Warning

Follow these precautions to prevent personal injury while operating or maintaining this equipment:

• Refer to nameplate to identify the type of refrigerant in your equipment.

• Only trained and qualified personnel aware of the dangers are allowed to work on the equipment.

• Read this manual thoroughly before operating, installing or performing maintenance on the equipment. Failure to follow instructions in this manual can cause property damage, injury or death.

• Crush/Pinch Hazard. Keep hands clear of moving components. Components can move without warning unless power is disconnected and all potential energy is removed.

• Moisture collecting on the floor will create a slippery surface. Clean up any water on the floor immediately to prevent a slip hazard.

• Never use sharp objects or tools to remove ice or frost. Do not use mechanical devices or other means to accelerate the defrosting process.

• When using cleaning fluids or chemicals, rubber gloves and eye protection (and/or face shield) must be worn.

Page 7

Warning

Follow these precautions to prevent personal injury while operating or maintaining this equipment:

• Objects placed or dropped in the bin can affect human health and safety. Locate and remove any objects immediately.

• Never use sharp objects or tools to remove ice or frost.

• Do not use mechanical devices or other means to accelerate the defrosting process.

• When using cleaning fluids or chemicals, rubber gloves and eye protection (and/or face shield) must be worn.

DANGER

Do not operate equipment that has been misused, abused, neglected, damaged, or altered/modified from that of original manufactured specifications. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision concerning use of the appliance by a person responsible for their safety. Do not allow children to play with, clean or maintain this appliance without proper supervision.

Page 8

Warning

Follow these precautions to prevent personal injury during use and maintenance of this equipment:

• It is the responsibility of the equipment owner to perform a Personal Protective Equipment Hazard Assessment to ensure adequate protection during maintenance procedures.

• Do Not Store Or Use Gasoline Or Other Flammable Vapors Or Liquids In The Vicinity Of This Or Any Other Appliance. Never use flammable oil soaked cloths or combustible cleaning solutions for cleaning.

• All covers and access panels must be in place and properly secured when operating this equipment.

• Risk of fire/shock. All minimum clearances must be maintained. Do not obstruct vents or openings.

• Failure to disconnect power at the main power supply disconnect could result in serious injury or death. The power switch DOES NOT disconnect all incoming power.

• All utility connections and fixtures must be maintained in accordance with the authority having jurisdiction.

• Turn off and lockout all utilities (gas, electric, water) according to approved practices during maintenance or servicing.

Page 9

DANGER

Follow these flammable refrigeration system requirements during installation, use or repair of this equipment:

• Refer to nameplate - Ice machine models may contain up to 150 grams of R290 (propane) refrigerant. R290 (propane)is flammable in concentrations of air between approximately 2.1% and 9.5% by volume (LEL lower explosion limit and UEL upper explosion limit). An ignition source at a temperature higher than 470°C is needed for a combustion to occur. Refer to nameplate to identify the type of refrigerant in your equipment.

• To minimize the risk of ignition due to improper installation, replacement parts or service procedures, only refrigeration technicians with flammable refrigerant training who are aware of the dangers of dealing with high voltage electricity and refrigerant under pressure are allowed to work on this equipment.

• All replacement parts must be like components obtained from the equipment manufacturers authorized replacement part network.

• This equipment must be installed in accordance with the ASHRAE 15 Safety Standard for Refrigeration Systems.

• This equipment can not be installed in corridors or hallways of public buildings.

• Installation must comply with all applicable equipment fire and health codes with the authority having jurisdiction.

Page 10

DANGER

Follow these flammable refrigeration system requirements during installation, use or repair of this equipment:

• All lockout and tag out procedures must be followed when working on this equipment.

• This equipment contains high voltage electricity and refrigerant charge. Shorting electrical wires to refrigeration tubing may result in an explosion. All electrical power must be disconnected from the system before servicing the system. Refrigerant leaks, can result in serious injury or death from explosion, fire, or contact with refrigerant or lubricant mists.

• Do not damage the refrigeration circuit when installing, maintaining or servicing the unit. Never use sharp objects or tools to remove ice or frost. Do not use mechanical devices or other means to accelerate the defrosting process.

Page 11

DANGER

Follow these precautions to prevent personal injury during use and maintenance of this equipment:

• Units with two power cords must be plugged into individual branch circuits. During movement, cleaning or repair it is necessary to unplug both power cords.

• Never use a high-pressure water jet for cleaning on the interior or exterior of this unit. Do not use power cleaning equipment, steel wool, scrapers or wire brushes on stainless steel or painted surfaces.

• Two or more people are required to move this equipment to prevent tipping.

• Locking the front casters after moving is the owner’s and operator’s responsibility. When casters are installed, the mass of this unit will allow it to move uncontrolled on an inclined surface. These units must be tethered/secured to comply with all applicable codes.

• The on-site supervisor is responsible for ensuring that operators are made aware of the inherent dangers of operating this equipment.

• Do not operate any appliance with a damaged cord or plug. All repairs must be performed by a qualified service company.

Page 12

Table of Contents

Safety Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

General Information

Model Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Air-Water-Remote Condenser Models . . . . . .19

Model Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Ice Cube Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Model/Serial Number Location . . . . . . . . . . . . . . . . . 21

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Warranty Registration. . . . . . . . . . . . . . . . . . . .22

LuminIce® II. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Home Screen - LuminIce Icon. . . . . . . . . . . . . .23

Installation

Location of Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . 25

Clearance Requirements. . . . . . . . . . . . . . . . . . . . . . . . 26

Air, Water, Remote Condenser Models . . . . . .26

Ice Machine Heat of Rejection . . . . . . . . . . . . . . . . . . 27

Installation on a Bin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Ice Machine on a Dispenser Installation. . . . . . . . . 28

Water Supply and Drains . . . . . . . . . . . . . . . . . . . . . . . 29

Line Set Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Remote Condenser . . . . . . . . . . . . . . . . . . . . . .31

Remote Ice Machine Usage with Non-Manitowoc

Multi-Circuit Condensers . . . . . . . . . . . . . . . . . . . . . . . 34

Maintenance

Detailed De-scaling and Sanitizing . . . . . . . . . . . . . . 37

General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Detailed De-scaling/Sanitizing Procedure. . . .38

Remedial De-scaling Procedure . . . . . . . . . . . .38

iAuCS® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Exterior Cleaning . . . . . . . . . . . . . . . . . . . . . . . .38

Touchscreen Operation For The Clean Cycle . . . . . 39

Starting a Clean Cycle . . . . . . . . . . . . . . . . . . . .39

Water Curtain/Damper Operation

During The Clean Cycle . . . . . . . . . . . . . . . . . . .39

Pausing A Clean Cycle . . . . . . . . . . . . . . . . . . . .39

Part Number: 000015430 Rev 04 4/22 13

Page 13

Power Interruption During Clean Cycle. . . . . .39

Aborting A Clean Cycle . . . . . . . . . . . . . . . . . . .39

Detailed De-scaling/Sanitizing Procedure . . . . . . . 40

De-scaling Procedure . . . . . . . . . . . . . . . . . . . .40

Sanitizing Procedure . . . . . . . . . . . . . . . . . . . . .45

Remedial De-scaling Procedure . . . . . . . . . . . . . . . . . 48

Removal from Service/Winterization. . . . . . . . . . . . 50

Air-Cooled Ice Machines. . . . . . . . . . . . . . . . . .50

Water-Cooled Ice Machines . . . . . . . . . . . . . . .51

Operation

Touchscreen Features . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Home screen icon descriptions . . . . . . . . . . . .55

Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Menu Navigation Overview. . . . . . . . . . . . . . . . . . . . . 58

Settings Menu Screen Navigation . . . . . . . . . .58

Operational Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Ice Thickness Check. . . . . . . . . . . . . . . . . . . . . .64

Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . 66

Self Contained Air or Water Cooled. . . . . . . . .66

Energized Parts Chart . . . . . . . . . . . . . . . . . . . .70

Remote Condenser . . . . . . . . . . . . . . . . . . . . . .72

Energized Parts Chart . . . . . . . . . . . . . . . . . . . .76

Troubleshooting

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Alert Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

Alert Log Detail . . . . . . . . . . . . . . . . . . . . . . . . .81

Thaw Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Safe Operation Mode . . . . . . . . . . . . . . . . . . . .87

E01 Long Freeze Cycle. . . . . . . . . . . . . . . . . . . .88

E02 Long Harvest Cycle. . . . . . . . . . . . . . . . . . .88

Analyzing Why A Service Fault (E01 & E02)

Stopped the Ice Machine . . . . . . . . . . . . . . . . .88

E01 Long Freeze. . . . . . . . . . . . . . . . . . . . . . . . .89

E02 Long Harvest. . . . . . . . . . . . . . . . . . . . . . . .91

14 Part Number: 000015430 Rev 04 4/22

Page 14

Troubleshooting By Symptom. . . . . . . . . . . . . . . . . . . 92

Reset To Factory Defaults . . . . . . . . . . . . . . . . .93

Symptom #1 - Ice Machine Will Not Run . . . .94

Low Production, Long Freeze Cycle . . . . . . . . .97

Symptom #2 - Freeze Cycle Refrigeration

System Operational Analysis Tables. . . . . . . . .99

Symptom #3 & #4 - Harvest Problems Self-contained Air, Water & Remote Condenser

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

Symptom #3 - Self-Contained Air or

Water-cooled. . . . . . . . . . . . . . . . . . . . . . . . . .128

Symptom #3 - Remote Condenser. . . . . . . . .130

Symptom #4 - Self-Contained Air,

Water-Cooled or Remote . . . . . . . . . . . . . . . .132

Component Check Procedures

Electrical Components. . . . . . . . . . . . . . . . . . . . . . . . . 135

Control Board, Display And Touchscreen . . .135

Control Board Relay Test. . . . . . . . . . . . . . . . .138

Programming A Replacement

Control Board . . . . . . . . . . . . . . . . . . . . . . . . .139

USB Flash Drive Specifications

and Formatting . . . . . . . . . . . . . . . . . . . . . . . .140

Exporting Data to a Flash Drive . . . . . . . . . . .141

Upgrading Firmware with a Flash Drive . . . .142

Main Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . .143

Bin Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . .144

Water Level Control Circuitry . . . . . . . . . . . . .147

Ice Thickness Probe (Initiates Harvest) . . . . .151

Bin Level Probe . . . . . . . . . . . . . . . . . . . . . . . .156

Thermistors . . . . . . . . . . . . . . . . . . . . . . . . . . .158

High Pressure Cutout (HPCO) Control . . . . . .162

Fan Cycle Control. . . . . . . . . . . . . . . . . . . . . . .165

Harvest Assist Air Pump . . . . . . . . . . . . . . . . .166

Compressor Electrical Diagnostics. . . . . . . . .167

Diagnosing Start Components . . . . . . . . . . . .169

Part Number: 000015430 Rev 04 4/22 15

Page 15

Refrigeration Components. . . . . . . . . . . . . . . . . . . . . 172

Head Pressure Control Valve . . . . . . . . . . . . .172

Harvest Pressure Regulating (HPR) System

Remote Condenser Only. . . . . . . . . . . . . . . . .176

Water Regulating Valve. . . . . . . . . . . . . . . . . .179

Refrigerant Recovery/Evacuation . . . . . . . . . . . . . . 180

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . .180

Refrigerant Re-Use Policy . . . . . . . . . . . . . . . .181

Self-Contained Model Procedure . . . . . . . . .183

Remote Condenser Model Procedure. . . . . .187

System Contamination Clean-Up. . . . . . . . . . . . . . . 191

Determining Severity Of Contamination. . . .191

Cleanup Procedure . . . . . . . . . . . . . . . . . . . . .193

Liquid Line Filter-Driers. . . . . . . . . . . . . . . . . . . . . . . . 197

Replacing Pressure Controls Without Removing

Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Total System Refrigerant Charge . . . . . . . . . . . . . . . 199

Self-Contained Air & Water Cooled . . . . . . . .199

Remote Condenser . . . . . . . . . . . . . . . . . . . . .200

Charts

Cycle Times/24-Hour Ice Production/Refrigerant

Pressure Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

IF0300 Series . . . . . . . . . . . . . . . . . . . . . . . . . .202

IT0300 Series . . . . . . . . . . . . . . . . . . . . . . . . . .204

IT0420 Series . . . . . . . . . . . . . . . . . . . . . . . . . .206

IT0450 Series . . . . . . . . . . . . . . . . . . . . . . . . . .208

IT0500 Series . . . . . . . . . . . . . . . . . . . . . . . . . .210

IF0500 Series . . . . . . . . . . . . . . . . . . . . . . . . . .213

IF0600 Series . . . . . . . . . . . . . . . . . . . . . . . . . .214

IT0620 Series . . . . . . . . . . . . . . . . . . . . . . . . . .217

IT0750 Series . . . . . . . . . . . . . . . . . . . . . . . . . .219

IF0900 Series . . . . . . . . . . . . . . . . . . . . . . . . . .221

IT0900 series . . . . . . . . . . . . . . . . . . . . . . . . . .224

IT1200 Series . . . . . . . . . . . . . . . . . . . . . . . . . .226

IT1500 Series . . . . . . . . . . . . . . . . . . . . . . . . . .229

IT1900 Series . . . . . . . . . . . . . . . . . . . . . . . . . .232

16 Part Number: 000015430 Rev 04 4/22

Page 16

Diagrams

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Wiring Diagram Legend . . . . . . . . . . . . . . . . .235

IF0300/IT0420/IT0450/IT0500/ IT0620/IT0750

1ph Air/Water . . . . . . . . . . . . . . . . . . . . . . . . .236

IT0500/IT1200 - 1ph Remote . . . . . . . . . . . . .238

IF0600/IF0900/IT0900/IT1200 -

1ph Air/Water . . . . . . . . . . . . . . . . . . . . . . . . .240

IF0600/IF0900/IT0900/IT1200 -

3ph Air/Water . . . . . . . . . . . . . . . . . . . . . . . . .242

IT1500/IT1900 - 1ph Air/Water . . . . . . . . . . .244

IT1500/IT1900 - 3 ph Air/Water. . . . . . . . . . .246

IF0500/IF0600/IF0900/IT1200/IF1500 -

1ph Remote . . . . . . . . . . . . . . . . . . . . . . . . . . .248

IF0500/IF0600/IF0900/IT1200/IF1500 -

3ph Remote Condenser . . . . . . . . . . . . . . . . .250

Electronic Control Board. . . . . . . . . . . . . . . . . . . . . . . 252

Electrical Noise Filter . . . . . . . . . . . . . . . . . . .254

Refrigeration Tubing Schematics . . . . . . . . . . . . . . . 255

Self-Contained Air or Water-Cooled . . . . . . .255

Remote Air-Cooled Condenser Models. . . . .259

Part Number: 000015430 Rev 04 4/22 17

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THIS PAGE INTENTIONALLY LEFT BLANK

18 Part Number: 000015430 Rev 04 4/22

Page 18

General Information

Model Numbers

AIRWATERREMOTE CONDENSER MODELS

Self-Contained

Air-Cooled

IDF0300A IYF0300A IDT0300A IYT0300A IDT0420A IYT0420A IDT0450A IYT0450A

----

---IDT0500A IYT0500A IRT0500A IDF0600A IYF0600A IDT0620A IYT0620A IRT0620A IDT0750A IYT0750A IRT0750A IDF0900A IYF0900A IRF0900A IDT0900A IYT0900A IRT0900A IDT1200A IYT1200A IDT1500A IYT1500A IDT1900A IYT1900A IRT1900A

Additional designators identify Voltage, Specials or Country specific models See “Model Nomenclature” on page 20

Self-Contained

Water-Cooled

IDF0300W IYF0300W IDT0300W IYT0300W IDT0420W IYT0420W IDT0450W IYT0450W

----

---IDT0500W IYT0500W IRT0500W IDF0600W IYF0600W IDT0620W IYT0620W IRT0620W IDT0750W IYT0750W IRT0750W IDF0900W IYF0900W IRF0900W IDT0900W IYT0900W IRT0900W IDT1200W IYT1200W IDT1500W IYT1500W IDT1900W IYT1900W

----

Remote

----

---IDF0500N IYF0500N IDT0500N IYT0500N

---IDF0600N IYF0600N

----

---IDF0900N IYF0900N

---IDT0900N IYT0900N

---IDT1200N IYT1200N IDT1500N IYT1500N IDT1900N IYT1900N IRT1900N

Part Number: 000015430 Rev 04 4/22 19

Page 19

Model Nomenclature

juncon box

cord without plug

Australia

NEMA plug (USA)

schuko plug (EU)

13A blade (GBR)

oblique V blades

discharge

leverVspace

maker

Arabia (GCC)

Germany (GS)

Brazil (InMetro)

BlankZBFGI(AUS)

POWER CORD OPTION

230/60/3

240/50/1 (S=230)

208-

ELECTRICAL

263 =

CONFIGURATION

261 = 208-230/60/1

251 = 220-

161 = 115/60/1

mean #s

value

all other

2= 22" wide cabinet

producon

TYPE

R290 (propane)

F R404A (four)

REFRIGERANT

T R410A (ten)

273 = 200/50-60/3

271 = 200/50-60/1

R134A (eight)

B R600A (butane)

453 = 380-415/50/3

R452A

SPECIAL USE

463 = 460/60/3

A Alternate Compressor

Q coated condenser

H high pressure

Blank general use

M marine

P correconal

Ttopair

X LuminIce®/Sanitaon

A air cooled

CONDENSER TYPE

70/50

~300 #/day

produces

NOMINAL PRODUCTION @

0300

0320 produces ~320 #/day

Blank not market speciﬁc

S Saudi

MARKET IDENTIFIER

(tradional)

remote

W water cooled

C CVD (remote)

~350 #/day

0350 produces

etc. . .

K Korea (KC)

kg/day in

Soo is stated

C China (CCC)

SERIES

Indigo

Big shot

MACHINE

ICE

U Undercounter

K Koolaire

R Flake/Nugget

IB Ice Beverage

S S-series

C Countertop

ICE TYPE

R Regular

Half-dice

DDice

F Flake

N Nugget

Gourmet

Blank for IB only

I Y T 1500N–261X

20 Part Number: 000015430 Rev 04 4/22

Page 20

Ice Cube Sizes

Regular

1-1/8" x 1-1/8" x 7/8"

2.86 x 2.86 x 2.22 cm

Dice

7/8" x 7/8" x 7/8"

2.22 x 2.22 x2.22 cm

Half Dice

3/8" x 1-1/8" x 7/8"

0.95 x 2.86 x 2.22 cm

Notice

All Manitowoc ice machines require the ice storage system (bin, dispenser, etc.) to incorporate an ice deflector.

Prior to using a non-Manitowoc ice storage system with other Manitowoc ice machines, contact the manufacturer to assure their ice deflector is compatible with Manitowoc ice machines.

Model/Serial Number Location

These numbers are required when requesting information from your local Manitowoc Distributor, service representative, or Manitowoc Ice.

• The model and serial number can be viewed by pressing the information icon on the touchscreen.

• The owner warranty registration card.

• The model/serial number data plate located in the evaporator compartment and on the back of the ice machine.

The model and serial number displayed on the touchscreen must match the data plate for proper operation.

Part Number: 000015430 Rev 04 4/22 21

Page 21

Warranty

For warranty information visit:

www.manitowocice.com/Service/Warranty

• Warranty Coverage Information

• Warranty Registration

• Warranty Verification

Warranty coverage begins the day the ice machine is installed.

WARRANTY REGISTRATION

Completing the warranty registration process is a quick and easy way to protect your investment. Scan the QR code with your smart device or enter the link in a web browser to complete your warranty registration.

WWW.MANITOWOCICE.COM/SERVICE/WARRANTY#WARRANTY REGISTRATION

Registering your product insures warranty coverage and streamlines the process if any warranty work is required.

22 Part Number: 000015430 Rev 04 4/22

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LuminIce® II

The LuminIce® growth inhibitor recirculates the air in the ice machine foodzone over a UV bulb. This process will inhibit the growth of common micro-organisms on all exposed foodzone surfaces.

• LuminIce® bulbs require replacement on a yearly basis.

• The control board can be set to automatically display a reminder after 12 months.

NOTE: LuminIce® and LuminIce® II bulbs are not interchangeable; verify your model before ordering a replacement bulb.

HOME SCREEN  LUMINICE ICON

• A blue icon: Normal Operation.

• A red icon: Bulb Replacement is required.

• Flashing Red/Blue icon: Incorrect bulb is installed.

• Flashing Red icon: Replace the LuminIce module.

Cleanup Procedure for Accidental Bulb Breakage

The cleanup procedure is identical to the procedure used to clean up compact fluorescent (CFL) or fluorescent tube lights. These lights contain a small amount of mercury sealed within a glass tube. Breaking these types of lights will release mercury and mercury vapor. The broken bulb can continue to release mercury vapor until it is cleaned up and removed.

The latest EPA procedures can be viewed on their website at www.epa.gov/cfl/cflcleanup.html.

NOTE: LuminIce® and LuminIce® II bulbs are not interchangeable; verify your model before ordering a replacement bulb. LuminIce® bulbs have a white base and LuminIce® II bulbs have a blue base.

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Installation

Location of Ice Machine

The location selected for the ice machine must meet the following criteria. If any of these criteria are not met, select another location.

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

• The location must allow enough clearance for water, drain, and electrical connections in the rear of the ice machine.

• Self contained air cooled, water cooled or head section for remote air cooled condenser models - The air temperature must be at least 35°F (1.6°C), but must not exceed 110°F (43.4°C).

• Remote air cooled condenser - The air temperature must be at least -20°F (-29°C), but must not exceed 120°F (49°C).

• Ice Making Water Inlet - Water Pressure must be at least 20 psi (1.4 bar), but must not exceed 80 psi (5.5 bar).

• Condenser Water Inlet - Water Pressure must be at least 20 psi (1.4 bar), but must not exceed 276 psi (19 bar).

• The location must not be near heat-generating equipment or in direct sunlight and protected from weather.

• The location must not obstruct air flow through or around the ice machine. Refer to chart below for clearance requirements.

• The ice machine must be protected if it will be subjected to temperatures below 32°F (0°C). Failure caused by exposure to freezing temperatures is not covered by the warranty.

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Clearance Requirements

AIR, WATER, REMOTE CONDENSER MODELS

IF0300/IT0300

Top/Sides 16" (40 cm) 8" (20 cm)

Back 5" (13 cm) 5" (13 cm)

IT0420/IT0620

Top/Sides 12" (31 cm) 8" (20 cm)

Back 5" (13 cm) 5" (13 cm)

IT0450/IF0500 IT0500/IF0600

IT0750

Top/Sides 8" (20.3 cm) 8" (20.3 cm)

Back 5" (12.7 cm) 5" (12.7 cm)

IF0900/IT0900

Top/Sides 8" (20.3 cm) 8" (20.3 cm)

Back 5" (13 cm) 5" (13 cm)

IT1200

Top 8" (20.3 cm) 8" (20.3 cm)

Sides 8” (20.3 cm) 8" (20.3 cm)

Back 5" (12.7 cm) 5" (12.7 cm)

IT1500

Top 12" (30.5 cm) 8" (20.3 cm)

Sides 8" (20.3 cm) 8" (20.3 cm)

Back 5" (12.7 cm) 5" (12.7 cm)

IT1900

Top 12" (30.5 cm) 8" (20.3 cm)

Sides 8" (20.3 cm) 8” (20.3 cm)

Back 5" (12.7 cm) 5" (12.7 cm)

Self-Contained

Air-Cooled

Self-Contained

Air-Cooled

Self-Contained

Air-Cooled

Self-Contained

Air-Cooled

Self-Contained

Air-Cooled

Self-Contained

Air-Cooled

Self-Contained

Air-Cooled

Water-Cooled

Water-Cooled and

Water-Cooled

and Remote

Water-Cooled

and Remote

Water-Cooled

and Remote

Remote

Top Air Discharge Kit

This kit directs warm exhaust air upward rather than out the side panels. Top air discharge kits require the same clearance requirements.

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Ice Machine Heat of Rejection

Series Ice

Machine

IF0300 4600 5450 IT0300 3800 6000 IT0420 3800 6000 IT0450 3800 6000 IT0500 3800 6000 IF0600 11800 13700 IT0620 5400 6300 IT0750 12800 13700 IF0900 13000 16000 IT0900 12700 14800 IT1200 16200 19100 IT1500 23000 27000 IT1900 26100 30500

*BTU/Hour Because the heat of rejection varies during the ice making cycle, the figure shown is an average.

Air Conditioning* Peak

Heat of Rejection

Installation on a Bin

• The installation area must be capable of supporting the combined weight of the equipment and product.

• All ice machines installed on a bin require an ice deflector.

• Manitowoc bins have a deflector installed and require no modifications when used with a forward-facing evaporator.

• Align sides and back of ice machine with sides and back of bin when placing ice machine on bin.

NOTE: Optional sales kit are available to adapt various sized or multiple ice machines on large bins. Contact your local distributor for details.

Warning

PERSONAL INJURY POTENTIAL

Do not operate any ice machine with the deflector removed.

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Ice Machine on a Dispenser Installation

Observe the following recommendations unless required by the dispenser manufacturer. Refer to the standard equipment price list at www.manitowocice.com for adapter, deflector or ice management accessories.

• The installation area must be capable of supporting the combined weight of the equipment and product.

• An adapter is not required for ice machines that match the dispenser size.

• A deflector is not required.

• Ice level management is recommended to prevent water leakage or movement of ice machine during agitation.

• A dispenser baffle is required to prevent ice from contacting the ice machine panel and prevent possible water leakage.

• Align sides and back of ice machine with sides and back of dispenser when placing ice machine.

• Follow ice machine installation procedures and any additional installation requirements specified by the dispenser manufacturer.

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Water Supply and Drains

Potable Water

• Water temperature must be between 40°F (4.4°C) and 90°F (32°C).

• Water pressure must be between 20 psi (140 kPa) and 80 psi (550 kPa).

• Minimum internal diameter of tubing 3/8" (10 mm).

Drain Connections

• Drain lines must have a 1.5 inch drop per 5 feet (2.5 cm per meter) of run and must not create traps.

• The floor drain must be large enough to accommodate drainage from all drains.

• Run separate bin and ice machine drain lines.

• Insulate drain lines to prevent condensation.

• Vent the ice machine drain to the atmosphere.

• Drain termination must have an air gap that meets local code.

Auxiliary Base Drain Installation

An auxiliary drain is located in the ice machine base to remove moisture in high humidity areas.

1. View the back of the ice machine base on the compressor side and locate and remove the cap plug.

2. Route tubing to an open site drain:

• Use 1/2 inch CPVC tubing.

• Apply a bead of silicone around the exterior of the ice machine tubing and insert into ice machine base. The silicone will secure the tubing and provide a watertight seal.

• Provide support for tubing.

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Line Set Applications

Notice

The 60-month compressor warranty (including the 36-month labor replacement warranty) will not apply if the Manitowoc Ice Machine, Condenser or QuietQube® Condensing Unit were not installed according to specifications. This warranty also will not apply if the refrigeration system is modified with a condenser, heat reclaim device, or other parts or assemblies not manufactured by Manitowoc Ice. Or refrigeration system additives such as leak detection dyes, inhibitors or non OEM approved chemicals.

Warning

Recovery locations vary by model. Verify you are making the correct connections for your model to prevent accidental release of high pressure refrigerant.

Important

Manitowoc remote systems are only approved and warranted as a complete new package. Warranty on the refrigeration system will be void if new equipment is connected to existing (used) tubing, remote condenser, remote condensing unit or ice machine head section.

All line sets must be insulated with ¼” wall thickness Armaflex.

Important

Condensers must be mounted horizontally with the fan motor on top with nothing obstructing it. There must be at least a 16” (41 cm) clearance from the bottom for air intake.

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REMOTE CONDENSER

Ice Machine

IF0500N JCF0500

IT0500N JCT0500

IF0600N IF0900N

IT0900

IT1200N

IT1500N IT1900N

*Line Set Discharge Line Liquid Line

RT 1/2" (1.27 cm) 5/16" (.79 cm) RL 1/2" (1.27 cm) 3/8" (.95 cm)

R404A line sets have white protective caps. R410A line sets have pink protective caps. All line sets must be insulated with ¼” wall thickness Armaflex.

Air Temperature Around the Condenser

Minimum Maximum

-20°F (-29°C) 120°F (49°C)

Remote Single

Circuit Condenser

JCF0900

JCT1200

JCT1500

Line Set*

RT-20-R404A RT-35-R404A RT-50-R404A RT-20-R410A RT-35-R410A RT-50-R410A RT-20-R404A RT-35-R404A RT-50-R404A RT-20-R410A RT-35-R410A

RT-50-R410A RL-20-R410A RL-35-R410A RL-50-R410A

Additional Refrigerant Charge For 51' to 100' Line Sets

Ice Machine Condenser Additional Amount of

Refrigerant To Be Added To

Nameplate Charge

IF0500N JCF0500 1.5 lbs - 680 g IT0500N JCT0500 1.5 lbs - 680 g IF0600N JCF0900 1.5 lbs - 680 g IF0900N JCF0900 2.0 lbs - 907 g IT0900N JCT0900 2.0 lbs - 907 g IT1200N JCT1200 2.0 lbs - 907 g IT1500N JCT1500 2.0 lbs - 907 g IT1900N JCT1500 2.0 lbs - 907 g

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Calculating Allowable Line Set Distance

Line Set Length

The maximum length is 100' (30.5 m).

Line Set Rise/Drop

The maximum rise is 35' (10.7 m).

The maximum drop is 15' (4.5 m).

35 FT. (10.7 M)

MAXIMUM DISTANCE

35 ft. (10.7 m) Rise: The maximum distance the Condenser

or Condensing Unit can be above the ice machine.

15 FT. (4.5 M)

MAXIMUM

DISTANCE

15 ft. (4.5 m) Drop: The maximum distance the Condenser

or Condensing Unit can be below the ice machine.

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Calculated Line Set Distance

The maximum calculated distance is 150' (45.7 m).

Line set rises, drops, horizontal runs (or combinations of these) in excess of the stated maximums will exceed compressor start-up and design limits. This will cause poor oil return to the compressor.

Make the following calculations to make sure the line set layout is within specifications.

1. Insert the measured rise into the formula below.

Multiply by 1.7 to get the calculated rise. (Example: A condenser located 10 feet above the ice machine has a calculated rise of 17 feet.)

2. Insert the measured drop into the formula below.

Multiply by 6.6 to get the calculated drop. (Example. A condenser located 10 feet below the ice machine has a calculated drop of 66 feet.)

3. Insert the measured horizontal distance into the

formula below. No calculation is necessary.

4. Add together the calculated rise, calculated drop, and horizontal distance to get the total calculated distance. If this total exceeds 150' (45.7 m), move the condenser to a new location and perform the calculations again.

Maximum Line set Distance Formula

Measured Rise ____ X 1.7 = ______Calculated Rise (35 ft. Max)

Step 1

Measured Drop ____ X 6.6 = ______Calculated Drop (15 ft. Max.)

Step 2

Measured Horizontal Distance = _________Horizontal (100 ft. Max.) Distance

Step 3

Total Calculated Distance = ___________Total Calculated (150 ft. Max.) Distance

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Remote Ice Machine Usage with NonManitowoc Multi-Circuit Condensers

Warranty

The sixty (60) month compressor warranty, including thirty six (36) month labor replacement warranty, shall not apply when the remote ice machine is not installed within the remote specifications. The foregoing warranty shall not apply to any ice machine installed and/or maintained inconsistent with the technical instructions provided by Manitowoc Ice. Performance may vary from Sales specifications. ARI certified standard ratings only apply when used with a Manitowoc remote condenser.

If the design of the condenser meets the specifications, Manitowoc’s only approval is for full warranty coverage to be extended to the Manitowoc manufactured part of the system. Since Manitowoc does not test the condenser in conjunction with the ice machine, Manitowoc will not endorse, recommend, or approve the condenser, and will not be responsible for its performance or reliability.

Important

Manitowoc warrants only complete new and unused remote packages. Guaranteeing the integrity of a new ice machine under the terms of our warranty prohibits the use of pre-existing (used) tubing or condensers.

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Design & Burst Pressure

Design Pressure 600 psig - 4137 kPa

Burst Pressure 2500 psig - 17237 kPa

Head Pressure Control Valve

Do not use a fan cycling control to try to maintain discharge pressure. Compressor failure will result. Any remote condenser connected to a Manitowoc Ice Machine must have the OEM head pressure control valve installed. Manitowoc will not accept substitute “off the shelf” head pressure control valves.

Kits are available for head pressure control installation:

• R404A Refrigerant - K00221

• R410A Refrigerant - K00479

Fan Motor

The condenser fan must be on during the complete ice machine freeze cycle (do not cycle on fan cycle control). The ice maker has a condenser fan motor circuit for use with a Manitowoc condenser. It is recommended that this circuit be used to control the condenser fan(s) on the multi-circuit condenser to assure it is on at the proper time. Do not exceed the rated amps for the fan motor circuit listed on the ice machine’s serial tag.

Internal Condenser Volume

The multi-circuit condenser internal volume must not be less than or exceed that used by Manitowoc. Do not exceed internal volume and try to add charge to compensate, as compressor failure will result.

Model

IF0500N / IT0500N 0.020 (566) 0.030 (850)

IF0600

IF0900N / IT0900N

T1200N IT1500N IT1900N

Minimum

ft³ (cm³)

0.045 (1274) 0.060 (1699)

0.085 (2407) 0.105 (2973)

Maximum

ft³ (cm³)

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Heat of Rejection

Model Peak Average

IF0500N/IT0500N 3800 6000

IF0600N 11800 13000

IF0900N/IT0900N 13000 16000

IT1200N 16200 19100 IT1500N 23000 27000 IT1900N 26100 30500

Refrigerant Charge

The ice machine model/serial tag lists the refrigerant amount. Remote condensers and line sets contain a vapor charge only.

Refer to “Total System Refrigerant Charge” on page 199 for system refrigerant amounts.

Quick Connect Fittings

The ice machine and line sets come with quick connect fittings. It is recommended that matching quick connects (available through Manitowoc Distributors K00129) be installed in the multi-circuit condenser, and that a vapor “holding” charge, 5 oz. (150 ml), of proper refrigerant be added to the condenser prior to connection of the ice machine or line set to the condenser.

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Maintenance

Detailed De-scaling and Sanitizing

GENERAL

You are responsible for maintaining the ice machine in accordance with the instructions in this manual. Maintenance procedures are not covered by the warranty.

De-scale and sanitize the ice machine a minimum of once every six months for efficient operation. If the ice machine requires more frequent de-scaling and sanitizing, consult a qualified service company to test the water quality and recommend appropriate water treatment. An extremely dirty ice machine must be taken apart for descaling and sanitizing.

Manitowoc Ice Machine De-scaler and Sanitizer are the only products approved for use in Manitowoc ice machines.

Caution

Use only Manitowoc approved Ice Machine De-scaler and Sanitizer for this application (Manitowoc De-scaler part number 9405463 and Manitowoc Sanitizer part number 9405653). It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling. Read and understand all labels printed on bottles before use.

Caution

Do not mix De-scaler and Sanitizer solutions together. It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.

Warning

Wear rubber gloves and safety goggles (and/or face shield) when handling Ice Machine De-scaler or Sanitizer.

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DETAILED DESCALING/SANITIZING PROCEDURE

This procedure must be performed a minimum of once every six months.

• The ice machine and bin must be disassembled de-scaled and sanitized.

• All ice produced during the de-scaling and sanitizing procedures must be discarded.

• Removes mineral deposits from areas or surfaces that are in direct contact with water.

REMEDIAL DESCALING PROCEDURE

• This procedure de-scales all components in the water flow path, and is used to de-scale the ice machine between the bi-yearly detailed de-scaling/sanitizing procedure.

IAUCS®

iAuCS® does not operate when the Clean button is used to start a clean cycle. To prime the hose, activation is required through the Service Menu/iAuCS® icon.

EXTERIOR CLEANING

Clean the area around the ice machine as often as necessary to maintain cleanliness and efficient operation.

Wipe surfaces with a damp cloth rinsed in water to remove dust and dirt from the outside of the ice machine. If a greasy residue persists, use a damp cloth rinsed in a mild dish soap and water solution. Wipe dry with a clean, soft cloth.

The exterior panels have a clear coating that is stain resistant and easy to clean. Products containing abrasives will damage the coating and scratch the panels.

• Never use steel wool or abrasive pads for cleaning.

• Never use chlorinated, citrus based or abrasive cleaners on exterior panels and plastic trim pieces.

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Touchscreen Operation For The Clean Cycle

STARTING A CLEAN CYCLE

Pressing the Clean icon will display a Continue/Abort screen, and a warning that pressing Continue will result in a clean cycle that can last up to 35 minutes.

WATER CURTAIN/DAMPER OPERATION DURING THE CLEAN CYCLE

The water curtain/damper must remain closed during the de-scaling and sanitizing procedures. When the curtain/ damper is open for more than 3 seconds the clean cycle stops and a message is displayed on the touchscreen with a choice to continue or stop the clean cycle. Stopping the clean cycle will result in a series of rinse and dump cycles to verify de-scaler or sanitizer has been removed before ice making.

PAUSING A CLEAN CYCLE

The clean cycle can be paused and resumed at any time by pressing the power button. The clean cycle will resume from the beginning of either the wash or rinse cycle depending on the point of interruption.

POWER INTERRUPTION DURING CLEAN CYCLE

If the power supply is interrupted during the clean cycle the state is retained in the circuit board. When power is reapplied the clean cycle will resume from the beginning of either the wash or rinse cycle depending on the point of interruption.

ABORTING A CLEAN CYCLE

Verify de-scaler or sanitizer is not present in the water system before aborting a clean cycle.

1. Press and hold the Clean button, then press and release the power button.

2. Release the Clean button and select abort from the touchscreen.

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Detailed De-scaling/Sanitizing Procedure

Caution

DESCALING PROCEDURE

Caution

Do not mix De-scaler and Sanitizer solutions together. It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.

Warning

Wear rubber gloves and safety goggles (and/or face shield) when handling Ice Machine De-scaler or Sanitizer.

Ice machine de-scaler is used to remove lime scale and mineral deposits. Ice machine sanitizer disinfects and removes algae and slime.

NOTE: Although not required and dependent on your installation, removing the ice machine top cover may allow easier access.

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Step 1 Open the front panel to access the evaporator compartment. Ice must not be on the evaporator during the de-scaling/sanitizing procedure. Follow one of the methods below:

• Press the power switch at the end of a harvest cycle after ice falls from the evaporator(s).

• Press the power switch and allow the ice to melt

• Use the touchscreen to initiate a manual harvest cycle.

Notice

Never use anything to force ice from the evaporator. Damage may result.

Step 2 Remove all ice from the bin/dispenser.

Step 3 Press the Clean button and select “Turn off

when complete”. Water will flow through the water dump valve and down the drain. Wait approximately 1 minute until the water trough refills and the display indicates Add Chemical. Add the proper amount of ice machine de-scaler to the water trough by pouring between the water curtain and evaporator, then confirm the chemical was added.

NOTE: There is a 10 minute time limit to confirm chemical was added.

• Confirmation is pushed within 10 minutes - The ice machine will start a 10 minute wash cycle, followed by 6 rinse and flush cycles.

• Confirmation is not pushed within 10 minutes - The ice machine will skip the 10 minute wash cycle and start 6 rinse and flush cycles.

Model Amount of De-scaler

IF0300/IT0300/IT0420/IT0620 3 ounces (90 ml) IT0450/IF0500/IT0500/IF0600 IT0750/IF0900/IT0900/IT1200

IT1500/IT1900 9 ounces (265 ml)

Part Number: 000015430 Rev 04 4/22 41

5 ounces (150 ml)

Page 41

Step 4 Wait until the cycle is complete, then disconnect power to the ice machine (and dispenser when used).

Warning

Disconnect the electric power to the ice machine at the electric service switch box.

Step 5 Remove parts for descaling.

A. Remove the water curtain

• Gently flex the curtain in the center and remove it from the right side.

• Slide the left pin out.

B. Remove the water trough and water diverter from

the bottom of the evaporator.

• Depress tabs on right and left side of the water trough.

• Allow front of water trough to drop as you pull forward to disengage the rear pins.

• Loosen thumbscrew on left side of water diverter tray.

• Allow left side of tray to drop as you pull the tray to the left to slide the right pin out.

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C. Remove the water level probe

• Pull the water level probe straight down to disengage.

• Lower the water level probe until the wiring connector is visible.

• Disconnect the wire lead from the water level probe.

• Remove the water level probe from the ice machine.

D. Remove the ice thickness probe

• Compress the hinge pin on the top of the ice thickness probe.

• Pivot the ice thickness probe to disengage one pin then the other. The ice thickness probe can be de-scaled at this point without complete removal. If complete removal is desired, disconnect the ice thickness control wiring from the control board.

E. Remove the water distribution tube

NOTE: Distribution tube thumbscrews are retained to prevent loss. Loosen thumbscrews but do not pull thumbscrews out of distribution tube.

• Loosen the two outer screws (do not remove screws completely they are retained to prevent loss) and pull forward on the distribution tube to release from slip joint.

Disassemble distribution tube by loosening the two (2) middle thumbscrews and dividing the distribution tube into two pieces. Please refer to the proper parts removal for your ice machine. Continue with step 6 when the parts have been removed.

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Step 6 Mix a solution of de-scaler and lukewarm water. Depending upon the amount of mineral buildup, a larger quantity of solution may be required. Use the ratio in the table below to mix enough solution to thoroughly de-scale all parts.

Solution Type Water Mixed With

De-scaler 1 gal. (4 L) 16 oz (475 ml) de-scaler

Step 7 Use 1/2 of the de-scaler/water mixture to de-scale all components. The solution will foam when it contacts lime scale and mineral deposits; once the foaming stops use a soft-bristle nylon brush, sponge or cloth (NOT a wire brush) to carefully de-scale the parts. Soak parts for 5 minutes (15 - 20 minutes for heavily scaled parts). Rinse all components with clean water.

Notice

Do not clean the ice thickness probe in a dishwasher. Permanent damage to the ice thickness probe will occur.

Ice Thickness Probe & Water Level Probe

De-scale the probes using the following procedure.

NOTE: Do not soak electrical connectors in de-scaler or sanitizer solution.

1. Mix a solution of Manitowoc ice machine de-scaler and water (2 ounces of de-scaler to 16 ounces of water) in a container.

2. De-scale all probe surfaces including all plastic parts (do not use abrasives). Verify all surfaces are clean. Thoroughly rinse probes with clean water.

3. Reinstall probe, then sanitize the ice machine and bin/ dispenser interior surfaces.

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Step 8 While components are soaking, use 1/2 of the de-scaler/water solution to de-scale all food zone surfaces of the ice machine and bin (or dispenser). Use a nylon brush or cloth to thoroughly de-scale the following ice machine areas:

• Side walls

• Base (area above water trough)

• Evaporator plastic parts - including top, bottom, and

sides

• Bin or dispenser

Rinse all areas thoroughly with clean water.

SANITIZING PROCEDURE

Step 9 Mix a solution of sanitizer and lukewarm water.

Solution Type Water Mixed With

Sanitizer 3 gal. (12 L) 2 oz (60 ml) sanitizer

Step 10 Use 1/2 of the sanitizer/water solution to sanitize all removed components. Use a spray bottle to liberally apply the solution to all surfaces of the removed parts or soak the removed parts in the sanitizer/water solution. Do not rinse parts after sanitizing.

Step 11 Use 1/2 of the sanitizer/water solution to sanitize all food zone surfaces of the ice machine and bin (or dispenser). Use a spray bottle to liberally apply the solution. When sanitizing, pay particular attention to the following areas:

• Side walls

• Base (area above water trough)

• Evaporator plastic parts - including top, bottom and

sides

• Bin or dispenser

Do not rinse the sanitized areas.

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Step 12 Replace all removed components.

Step 13 Wait 20 minutes.

Step 14 Reapply power to the ice machine and press the

Clean button.

Step 15 Press the Clean button and select “Make ice when complete”. Water will flow through the water dump valve and down the drain. Wait approximately 1 minute until the water trough refills and the display indicates Add Chemical. Add the proper amount of ice machine sanitizer to the water trough by pouring between the water curtain and evaporator, then confirm the chemical was added.

Model Amount of Sanitizer

IF0300/IT0300/IT0420/IT0450

IT0620/IF0500/IT0500

IF0600/IT0750/IF0900/IT0900

IT1200

IT1500/IT1900 6 ounces (180 ml)

3 ounces (90 ml)

Step 16 The ice machine will automatically start ice making after the sanitize cycle is complete.

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Water Inlet Valve

The water inlet valve normally does not require removal for de-scaling/sanitizing. Refer to “Water System Checklist” page 109, if you are troubleshooting water related problems.

1. When the ice machine is off, the water inlet valve must completely stop water flow into the machine. Watch for water flow.

When the ice machine is on, the water inlet valve must allow the proper water flow through it. Press the power button to energize the ice machine. Watch for water flow into the ice machine. If the water flow is slow or only trickles into the ice machine, refer to water system checklist.

NOTE: The valve can also be energized by navigating to the service diagnostic menu, selecting control board, then selecting “enable all relays”.

Warning

Disconnect the electric power to the ice machine and dispenser at the electric service switch box and turn off the water supply before proceeding.

Water Dump Valve

The water dump valve does not require removal for descaling/sanitizing. To determine if removal is necessary:

1. Locate the water dump valve.

2. While the ice machine is in the freeze mode, check the drain to determine if the dump valve is leaking. If there is no or little water in the water trough (during the freeze cycle) the dump valve is leaking.

A. If the dump valve is leaking and debris is not

visible and easily removed, the dump valve must be replaced.

B. If the dump valve is not leaking, do not remove

it. Instead, follow the “Ice Machine De-scaling Procedure”.

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Remedial De-scaling Procedure

This procedure will de-scale the components in the water flow path, and is used to de-scale the ice machine between the bi-yearly de-scaling and sanitizing procedure.

Ice machine de-scaler is used to remove lime scale and mineral deposits. Ice machine sanitizer disinfects and removes algae and slime.

NOTE: Although not required and dependent on your installation, removing the ice machine top cover may allow easier access.

1. Ice must not be on the evaporator during the descaling/sanitize cycle. Follow one of the methods below:

• Press the power switch at the end of a harvest cycle after ice falls from the evaporator(s).

• Press the power switch and allow the ice to melt.

Notice

Never use anything to force ice from the evaporator. Damage may result.

2. Open the front panel to access the evaporator.

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3. Press the Clean button and select “Make ice when complete”. Water will flow through the water dump valve and down the drain. Wait approximately 1 minute until the water trough refills and the display indicates Add Chemical. Add the proper amount of ice machine de-scaler to the water trough by pouring between the water curtain and evaporator, then confirm the chemical was added.

Model Amount of De-scaler

IF0300/IT0300/IT0420/IT0620 3 ounces (90 ml) IT0450/IF0500/IT0500/IF0600 IT0750/IF0900/IT0900/IT1200

IT1500/IT1900 9 ounces (265 ml)

5 ounces (150 ml)

4. Close and secure the front panel. The ice machine will automatically start ice making after the cycle is complete (approximately 24 minutes).

NOTE: Once the cycle has started it must complete before the ice machine can make ice again. Returning it to ice making mode will not cancel a Clean cycle.

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Removal from Service/Winterization

General

Special precautions must be taken if the ice machine is to be removed from service for an extended period of time or exposed to ambient temperatures of 32°F (0°C) or below.

Notice

If water is allowed to remain in the ice machine in freezing temperatures, severe damage to some components could result. Damage of this nature is not covered by the warranty.

Follow the applicable procedure below.

AIRCOOLED ICE MACHINES

1. Turn off the ice machine by pressing the Power Button.

2. Turn off the water supply.

3. Remove the water from the water trough.

4. Disconnect and drain the incoming ice-making water line at the rear of the ice machine.

5. Energize the ice machine and wait one minute for the water inlet valve to open - or - Energize all relays in the touchscreen service menu.

6. Blow compressed air in both the incoming water and the drain openings in the rear of the ice machine until no more water comes out of the water inlet lines or the drain.

7. Disconnect the electric power at the circuit breaker or the electric service switch.

8. Make sure water is not trapped in any of the water lines, drain lines, distribution tubes, etc.

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WATERCOOLED ICE MACHINES

1. Perform steps 1-6 under “Air-Cooled Ice Machines”.

2. Disconnect the incoming water and drain line from the water-cooled condenser.

3. Start the ice making cycle by pressing the Power button and wait for the freeze cycle. The increasing refrigerant pressure will open the water regulating valve.

4. Blow compressed air through the condenser until no water remains.

5. Turn off ice machine by pressing the Power button and then disconnecting power to the ice machine.

6. Perform a lock out tag out procedure.

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THIS PAGE INTENTIONALLY LEFT BLANK

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Operation

Power Button Lock/Unlock Screen Cleaning Button

11/18/2018 10:42 AM

MAKING ICE

Touchscreen Features

The Indigo® NXT control panel offers a series of pressuresensitive buttons and an interactive touchscreen.

Buttons

Power Button: Provides On/Off functions for the ice

machine.

Lock/Unlock Button: Allows or prevents touchscreen navigation.

Cleaning Button: Initiates a cleaning cycle. Refer to “Detailed De-scaling and Sanitizing” on page 37 for details.

NOTE: Touchscreen is to be activated with finger tips only.

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Touchscreen

11/18/2018 10:42 AM

MAKING ICE

11/18/2018 10:42 AM

Program Mode On

11/18/2018 10:42 AM

MAKING ICE

11/18/2018 10:42 AM

MAKING ICE

Home screen allows viewing of ice machine status, alerts and messages.

Navigation with the touchscreen provides access to menu items,machine information, settings and alert logs. Setup and Energy Saver settings can be adjusted along with access to service and troubleshooting information. The icons provide status indication and allow navigation by pressing the icon. Prior to Revision 9 software: The touchscreen will display Program

Mode On, whenever the ice machine is off due to a bin level probe, weight program or time program.

Revision 9 software - The touchscreen will display a Making Ice button with a Green outer ring during ice making; A Machine Off button with an Orange outer ring whenever the ice machine has turned off on either Time, Weight or Night Off; An Ice Now Bypass Program button with a Light Blue/Dark Blue outer ring, that allows immediate ice production regardless of ice program settings. The touchscreen will display a lock in place of the menu icon when the

touchscreen has been locked.

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HOME SCREEN ICON DESCRIPTIONS

Icon Description

Home Screen The center portion of the screen which displays

the current condition of the ice machine Making ice, bin full, program mode or machine off.

Alert Alert icon with number of messages. Pressing

this icon will display the alert log which will

allow viewing and resetting of alerts.

Message Message icon with umber of messages. Pressing

this icon will display the routine maintenance

reminder screen which will allow viewing and resetting of the reminder.

Menu Menu icon will take you to the main menu.

NOTE: This icon changes to a lock if the touchscreen lock has been selected.

Information Information icon provides model and serial

number, installation date and other information specific to the ice machine.

Service Locater

Lock/Unlock Indicates if screen is locked or unlocked.

LuminIce® Only visible when a LuminIce® II accessory is

Part Number: 000015430 Rev 04 4/22 55

Provides contact information for your local service support - Default is the Manitowoc Ice website service locater.

The icon is only visible when the screen is locked.

connected. Blue S - Normal operation

Red S - Replace bulb Red/Blue alternating - Incorrect bulb installed

Page 55

Icon Description

iAuCS This icon appears when the iAuCS activates

during a programed cleaning cycle.

Making Ice This icon with a green ring appears after the ice

machine has been programmed to run either by time, weight or night off.

Machine Off This icon with an orange ring appears after the

ice machine has been turned off by either time, weight or night off program.

Ice Now This icon with a light blue/dark blue ring allows

immediate ice production regardless of ice program settings.

Green Power

Button

56 Part Number: 000015430 Rev 04 4/22

This icon appears if the machine shuts off on Long Freeze or Long Harvest. To restart the machine press the Green Power Button on the diplay or by recycling power. This can only be done three times in a 24 hour period.

Page 56

Setup Wizard

Screens will automatically advance after a selection is made or press the arrows to advance/go back one screen. All settings can be accessed and changed without the wizard by using menu screen navigation.

Setup Description

Press Power

Button

Select

Language

Start Wizard

Date and Time

Configuration

Set Local Time Use arrows to set local time.

Verify Date Use arrows to set date for your location.

Accessory Detection

USB Setup

Units Select standard or metric.

Brightness

Ice Program

Cleaning

Reminder

iAuCS* Set frequency of operation.

Air Filter Set to ON for self-contained air-cooled models.

Water Usage

Water Filter* Select Yes or No, set reminder interval

LuminIce II* 12 month reminder is auto-set.

Wizard

Complete

* - Indicates optional accessory, when detected

The power button (ON/OFF) is used

to start/stop ice making.

Default is English. Scroll to select a different language. Setup wizard will guide ice machine

programming.

Select Month/Day/Year or Day/Month/Year.

Select 12 hour or 24 hour time format.

Detects if Ice Level Sensor,

LuminIce® II or iAuCS are connected.

Checkmark = yes - X = no Only used when setup features have been transferred to a USB drive. Skip screen by

selecting right arrow.

Configure screen brightness during normal

operation.

Program ice machine run times or press right

arrow to skip this setup.

Set de-scale and sanitize reminder or press

right arrow to skip.

Factory default

- or -

Use less water for reverse osmosis systems

(Refer to “Reverse Osmosis or Deionized Water

Usage” on page 148)

- or -

Use more water to improve clarity for

unfiltered water.

Press right arrow or home icon to return to

home screen.

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Menu Navigation Overview

SETTINGS MENU SCREEN NAVIGATION

Select SETTINGS Icon from the Home Screen to access Main Menu screen. The main menu screen contains four main headings, which allow access to subheadings under each main heading.

Energy

Ice Program

Continuous Mode - Default, No Program Time Program - Select Daily On/Off times Weight Program - Select Daily Production Weight Night Off Program - Select Night Off/On times

Water Usage

Use Factory Default Use Less Water With Reverse Osmosis Use More Water To Improve Ice Clarity

Statistics

Ice Production - Previous 7 Days Water Usage - Previous 7 Days Energy Usage - Previous 7 Days

NOTE: The performance statistics are calculated based on the performance of the ice machine at 90°F (32°C) ambient temperature and 70°F (21°C) water temperature. The actual statistics will vary dependent on your environmental conditions.

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Service

Data

Real Time Data

Time and Temperature Inputs Outputs

Data History for 5 Previous Days

Minimum and Maximum Freeze (Length, Time of day,

Thermistor Temperatures)

Minimum and Maximum Harvest (Length, Time of day,

Thermistor Temperatures)

Lifetime Data History

Installation Date Control Board Replacement Date Control Board Manufacture Date Runtime Cycle Count Potable Water Clean Cycles

Alert Log

Lists/Clears Alerts

Manual Harvest

Off or On

Control Board Replacement

Manual Replacement

Manually enter model number Manually enter serial number Manually enter condenser serial number (optional) Verification

USB Replacement

Import to ice machine Export to USB

Part Number: 000015430 Rev 04 4/22 59

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Service

Diagnostics

Control board

Enable All Relays Self Check

Temperature Sensors

Lists Sensor Temperatures

Inputs

Lists Control Board Input Information

User Interface

Screen Calibration Button Diagnostics Screen Diagnostics

Screen Calibration

Contact information

Factory defaults to QR code and website address to Manitowoc Ice’s Global Locator. Edit Contact Information Button.

USB

Upgrade Firmware Export Data

iAuCS

Manually initiate the iAuCS pump for pump/hose priming. NOTE: The clean button does not initiate the iAuCS pump.

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Settings

Language

Select Language

Reminders

Clean Reminder

Set Month Interval

Air Filter

Set On/Off/Interval

Water Filter

Set Reminder

Configure Date & Time

Set Time Set Date

Units

Standard or Metric

Brightness

Adjust Touch Screen Brightness For Sleep Mode or Inactivity. NOTE: 100% brightness is activated by touching the screen when the lock feature is off.

USB

Import Settings To Ice Machine Export Settings To USB

iAuCS

When the iAuCS is detected, the icon will appear in the settings menu to set frequency of cleanings with iAuCS

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Page 61

Reset Defaults

Require Setup Wizard

Optional Setup Wizard restart for training purposes or resale of equipment.

Backup Current Settings

Import To Ice Machine Export To USB

Reset Factory Defaults

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Operational Checks

GENERAL

Manitowoc ice machines are factory-operated and adjusted before shipment. Normally, new installations do not require any adjustment.

To ensure proper operation, always follow the Operational Checks:

• when starting the ice machine for the first time

• after a prolonged out of service period

• after cleaning, de-scaling and sanitizing

NOTE: Routine adjustments and maintenance procedures are not covered by the warranty.

Important

Refrigeration compressors must be operated for a minimum break in period of 24 hours before full ice production will be reached.

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Page 63

ICE THICKNESS CHECK

The ice thickness probe is factory-set to maintain the ice bridge thickness at 1/8" (3 mm).

NOTE: Make sure the water curtain/splash shields are in place when performing this check. It prevents water from splashing out of the water trough. Remove the curtain to make an adjustment, then replace immediately after the adjustment is made.

1. Inspect the bridge connecting the cubes. It should be 1/8" (3 mm) thick.

2. If adjustment is necessary, turn the ice thickness probe adjustment screw clockwise to increase bridge thickness or counterclockwise to decrease bridge thickness. Set a 9/32" gap between the ice thickness probe and evaporator as a starting point. Then adjust to achieve 1/8" ice thickness.

3. Make sure the ice thickness probe wire and the bracket do not restrict movement of the probe.

1/8" (3 mm)

ICE BRIDGE THICKNESS

PLACE 9/32" (7 mm) DRILL BIT

HERE TO SET INITIAL GAP

Ice Thickness Check

NOTE: Turning the adjustment 1/3 of a turn will change the ice thickness about 1/16" (1.5 mm). Make adjustment only when the ice machine is off to prevent initiating a harvest.

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Control Board Timers

The control board has the following non-adjustable timers:

• The ice machine is locked into the freeze cycle for 6

minutes before the ice thickness probe can initiate a harvest cycle.

• The maximum freeze time is 35 minutes at which time

the control board automatically initiates a harvest sequence.

• The maximum harvest time is 7 minutes, the control

board will preform a Thaw Cycle and then return the ice machine to the freeze cycle.

• Maximum water fill time in the freeze cycle:

• Single evaporator 6 minutes.

• Dual evaporator 8 minutes.

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Sequence of Operation

SELF CONTAINED AIR OR WATER COOLED

NOTE: The power button must be depressed and the water curtain/ice dampers must be in place on the evaporator before the ice machine will start.

Initial Start-Up or Start-Up After Automatic Shut-Off

1. Water Purge

Before the compressor starts, the water pump and water dump solenoid energize to purge the ice machine of old water. This feature ensures that the ice making cycle starts with fresh water.

2. Refrigeration System Equalization and Start-Up

The harvest valve(s) and air pump(s) energize to equalize high and low side refrigeration pressure.

After 5 seconds the contactor energizes the compressor and supplies power to the condenser fan motor. After 5 seconds the harvest valve(s) and air pump(s) de-energize.

NOTE: The fan motor is wired through a fan cycle pressure control. When the discharge pressure exceeds the cut in pressure the fan cycle switch closes and energizes the fan motor.

Freeze Sequence

3. Prechill

The compressor is on for 30 seconds (120 seconds initial cycle) to lower the temperature of the evaporator(s) before the water pump is energized. The water fill valve will energize and remain on until water touches the low and high, water level probes for 5 seconds.

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4. Freeze

Water Pump

The water pump(s) energizes and water flows over the evaporator. The water pump is energized throughout the freeze cycle.

Water Inlet Valve

The water inlet valve energized in prechill. After water contacts the low and high water probes the water fill valve de-energizes. Ice builds on the evaporator and the water level drops. When water loses contact with the high water probe, the water fill valve energizes until water contacts the high water probe again.

NOTE: After the second fill the water valve relay is locked out.

Maximum Fill Time = Prechill fill time + first fill + second fill.

SINGLE EVAPORATOR MAXIMUM FILL TIME

Initial startup or startup after automatic shutoff

Prechill (2 minutes) + first fill time (6 minutes) + second fill time (6 minutes) = 14.0 minutes.

Consecutive cycles

Prechill (30 sec.) + first fill time (6 minutes) + second fill time (6 minutes) = 12.5 minutes.

DUAL EVAPORATOR MAXIMUM FILL TIMES

Initial startup or startup after automatic shutoff

Prechill (2 minutes) + first fill time (8 minutes) + second fill time (8 minutes) = 18.0 minutes.

Consecutive cycles

Prechill (30 sec.) + first fill time (8 minutes) + second fill time (8 minutes) = 16.5 minutes.

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Ice Thickness Probe

The freeze cycle continues until the six minute freeze lock expires and enough ice has formed to send a signal from the ice thickness probe to the control board.

During the first 6 minutes of the freeze cycle the ice thickness probe microphone samples ambient noise. 6 minutes into the freeze cycle baseline readings are recorded. Ice formation on the evaporator will change the readings; when the baseline readings are exceeded a harvest cycle starts.

Harvest Sequence

5. Water Purge

The air pump(s) (when used) and the harvest valve(s) open at the beginning of the water purge to divert discharge refrigerant gas into the evaporator.

The water pump(s) continues to run, and the water dump valve energizes to purge any remain water in the water trough down the drain.

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6. Harvest

The air pump (when used) remains energized and the harvest valve(s) remains open. The refrigerant gas warms the evaporator causing the cubes to slide, as a sheet, off the evaporator and into the storage bin. If the damper/ curtain does not open within 3.5 minutes in the harvest cycle the following occurs:

• 3.5 minutes - The water inlet valve energizes until

water touches the high water level probe.

• 4 minutes - The water pump energizes.

• 6.5 to 7 minutes - The water dump valve energizes.

When the sliding sheet of cubes opens and closes within 30 seconds the bin switch terminates the harvest sequence and returns the ice machine to the freeze sequence (step 3 - 4).

NOTE: If bin switch does not open before 7 minutes the ice machine will start a Thaw Cycle - Refer to “Thaw Cycle” on page 86 for details.

Automatic Shut-Off

7. Automatic Shut-Off

When the storage bin is full at the end of a harvest sequence, the sheet of cubes fails to clear the water curtain/ice damper and will hold it open. After the water curtain/ice damper is held open for 30 seconds, the ice machine shuts off. The ice machine remains off for 3 minutes before it can automatically restart.

The ice machine remains off until enough ice has been removed from the storage bin to allow the ice to fall clear of the water curtain or all of the ice dampers. As the water curtain/ice dampers swing back to the closed position, the bin switch re-closes and the ice machine restarts (steps 1 -

2), provided the 3 minute delay period is complete.

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Page 69

45 Seconds

Length of Time

5 Seconds

Initial Start-Up

is 120 Seconds

30 Seconds

thereafter

Contact w/

Ice Thickness

Factory Set at

45 Seconds

Activation

Bin Switch

Probe

Until Ice

Fan Motor

Condenser

Compressor

Coil

Contactor

Valve

Dump

Water

Valve

Water Inlet

Air

Pump(s)*

Harvest

Valve(s)

Pump

Water

On Off Off Off On Off Off Off

Off On On Off Off Off Off Off

May Cycle

Off On On

May Cycle

Off Off Off

On/Off

May Cycle

Off On On

Off

Cycle On/

On Off Off

May Cycle

On On On Off Off On On

On/Off

May Cycle

Off On On Off Off On On

On/Off

of Operation

Ice Making Sequence

ENERGIZED PARTS CHART SELF CONTAINED AIR OR WATERCOOLED MODELS

70 Part Number: 000015430 Rev 04 4/22

Initial Start-Up

1. Water Purge

2. Pressure Equalization

3. Compressor Startup Off On On Off Off On On Off 5 Seconds

4. Prechill

Freeze Sequence

5. Freeze

6. Water Purge

7. Harvest

Harvest Sequence

Page 70

Until Water

Length of Time

Contact w/

Water Level

Probe

Bin Switch

Activation or 7

minutes

Bin Switch

minutes

**Until 3

Activation or 7

Minute Delay

closes

Expires and

Bin Switch Re-

Fan Motor

Condenser

Compressor

Coil

Contactor

Valve

Dump

Water

Valve

Water Inlet

Air

Pump(s)*

Harvest

Valve(s)

Pump

Water

May Cycle

On/Off

Off On On On Off On On

May Cycle

On On On Off Off On On

On/Off

May Cycle

On On On Off Off On On

On/Off

Off Off Off Off Off Off Off Off

of Operation

Ice Making Sequence

Thaw Cycle

Start s 3.5 minutes in

harvest cycle

Thaw Cycle

Start s 4 minutes in har vest

cycle

Thaw Cycle

Dump valve energizes at

6.5 minutes in harvest

cycle

8. Automatic Shut-

Off

* Not used on all models

Part Number: 000015430 Rev 04 4/22 71

** A thaw will start when the bin switch does not open within 7 minutes of the start of a harvest cycle.

Page 71

REMOTE CONDENSER

NOTE: The power button must be depressed and the water curtain/ice dampers must be in place on the evaporator before the ice machine will start.

Initial Start-Up or Start-Up After Automatic Shut-Off

1. Water Purge

Before the compressor starts, the water pump and water dump solenoid are energized for 45 seconds, to completely purge the ice machine of old water. This feature ensures that the ice making cycle starts with fresh water.

2. Refrigeration System Equalization and Start-Up

The harvest valve, air pump(s) and harvest pressure regulating (HPR) solenoid valves energize to equalize high and low side refrigeration pressure.

After 5 seconds the liquid line solenoid valve energizes and the contactor energizes the compressor and condenser fan motor.

Freeze Sequence

3. Prechill

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4. Freeze

Water Pump

The water pump(s) energizes and water flows over the evaporator. The water pump is energized throughout the freeze cycle.

Water Inlet Valve

Maximum Fill Time = Prechill fill time + first fill + second fill.

SINGLE EVAPORATOR MAXIMUM FILL TIME

Initial startup or startup after automatic shutoff

Prechill (2 minutes) + first fill time (6 minutes) + second fill time (6 minutes) = 14.0 minutes.

Consecutive cycles

Prechill (30 sec.) + first fill time (6 minutes) + second fill time (6 minutes) = 12.5 minutes.

DUAL EVAPORATOR MAXIMUM FILL TIMES

Initial startup or startup after automatic shutoff

Prechill (2 minutes) + first fill time (8 minutes) + second fill time (8 minutes) = 18.0 minutes.

Consecutive cycles

Prechill (30 sec.) + first fill time (8 minutes) + second fill time (8 minutes) = 16.5 minutes.

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Ice Thickness Probe

The freeze cycle continues until the six minute freeze lock expires and enough ice has formed to send a signal from the ice thickness probe to the control board.

During the first 6 minutes of the freeze cycle the ice thickness probe microphone samples ambient noise. 6 minutes into the freeze cycle 4 baseline readings are recorded. Ice formation on the evaporator will change the readings; when two of the four baseline readings are exceeded a harvest cycle starts.

Harvest Sequence

5. Water Purge

The air pump (when used) the harvest valve(s) and harvest pressure regulating valve (HPR) energize to divert refrigerant gas to the evaporator.

The water pump continues to run, and the water dump valve energizes to purge the water in the water trough.

6. Harvest

The harvest valve, air pump(s) and harvest pressure regulating (HPR) solenoid valves remain energized and the refrigerant gas warms the evaporator causing the cubes to slide, as a sheet, off the evaporator and into the storage bin. If the damper/curtain does not open within 3.5 minutes in the harvest cycle the following occurs:

• 3.5 minutes - The water inlet valve energizes until water touches the high water level probe.

• 4 minutes - The water pump energizes.

• 6.5 to 7 minutes - The water dump valve energizes.

When the sliding sheet of cubes opens and closes within 30 seconds the bin switch terminates the harvest sequence and returns the ice machine to the freeze sequence (step 3 - 4).

NOTE: If bin switch does not open before 7 minutes the ice machine will start a Thaw Cycle - Refer to “Thaw Cycle” on page 86 for details.

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Automatic Shut-Off

7. Automatic Shut-Off

2), provided the 3 minute delay period is complete.

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Page 75

Time

Length of

Fan Motor

Condenser

Compressor

Solenoid

Liquid Line

Contactor Coil

Up is 120

Initial Start-

Seconds

30 Seconds

thereafter

Startup

Off On On On

prechill

Off during

May Cycle On/

Off Off Off Off

4. Prechill

Freeze Sequence

Valve

Dump

Water

Valve

Water Inlet

Air

Pump(s)*

HPR

Valve

Harvest

Valve(s)

Off On On On Off Off Off Off Off 5 Seconds

Pump

Water

Operation

Ice Making

Sequence of

ENERGIZED PARTS CHART REMOTE AIRCOOLED CONDENSER MODELS

76 Part Number: 000015430 Rev 04 4/22

Initial Start-Up

1. Water Purge On Off Off Off Off On Off Off Off 45 Seconds

2. Pressure

Off On Off On Off Off On On On 5 Seconds

Equalization

3. Compressor

Page 76

Time

Length of

Fan Motor

Condenser

Compressor

Solenoid

Liquid Line

Contactor Coil

w/Ice

Probe

Thickness

Factory

Seconds

Set at 45

Activation

Bin Switch

Until Water

Contact

Until Ice

Contact w/

Water Level

Probe

Water

Dump

Water Inlet

Valve

Off On On On

time

On one more

Cycles Off then

Air

Pump(s)*

HPR

Valve

Harvest

Valve(s)

Pump

Water

Operation

Ice Making

Sequence of

5. Freeze On Off Off Off Harvest

Sequence

On On On On Off On On On On

6. Water Purge

7. Harvest Off On On On Off Off On On On

Thaw Cycle

Off On On On On Off On On On

Start s 3.5 minutes

in harvest cycle

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Page 77

Time

Length of

Fan Motor

Condenser

Compressor

Solenoid

Liquid Line

Contactor Coil

Valve

Dump

Water

Valve

Water Inlet

Air

Pump(s)*

HPR

Valve

Activation

Bin Switch

Delay

**Until

Activation

Bin Switch

or 7 minutes

3 Minute

or 7 minutes

Re-closes

Bin Switch

Expires and

Harvest

Valve(s)

Pump

Water

Operation

Ice Making

Sequence of

Thaw Cycle

On On On On Off Off On On On

Water pump

energizes at 4

minutes in harvest

On On On On Off On On On On

Off Off Off Off Off Off Off Off Off

Shut-Off

Thaw Cycle

cycle

Dump valve

energizes at 6.5

minutes in harvest

cycle

8. Automatic * Not used on all models

** A Thaw Cycle will start when the bin switch does not open within 7 minutes of the start of a harvest cycle.

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Page 78

Troubleshooting

Check the touchscreen for alerts - An alert icon with the number of messages will be displayed if alerts are present. Pressing the alert icon will display the alert log which will allow viewing and resetting of alerts. Refer to the alert log on the following pages for a description of the event.

NOTE: There are two sequences that allow the ice machine to continue ice making during alert events:

Thaw Cycle

When the damper/curtain does not open during the 7 minute harvest cycle (E02 fault) a thaw cycle starts. See “Thaw Cycle” on page 86

Safe Operation Mode

Allows the ice machine to operate up to 72 hours if the ice thickness probe (E19 fault) and/or water level probe sensors fail (E20 fault). See “Safe Operation Mode” on page 87

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Page 79

ALERT LOG

Refer to “Alert Log Detail” For Code descriptions.

Displayed Text Code Description

Long Freeze E01 Long Freeze Cycle Long Harvest E02 Long Harvest Cycle Power Loss E03 Input Power Loss Hi cnd Temp or Wtr Cnd Fault HPC Fault E05 High Pressure Control Opened

Starving TXV E07 Starving TXV Single Evaporator or Low On

TXV Fault E08 TXV Fault Single or Dual Circuit

Flood Evap1 E09 Flooding Evaporator Fault Single

Flood Evap2 E10 Flooding Evaporator Fault Dual TXV, Dual

Refrig Fault E11 Refrigeration Fault Curtain Fault E12 Curtain Switch Fault - Open more than

Low liq temp E15 Fan Cycle Control Fault - Low Liquid Line

Rmt Cnd Fault E16 Remote Condensing Unit Fault (CVD Only)

ITP Fault E19 Ice Thickness Probe Fault WTR Fault E20 Water System Fault T1 Fault E21 T1 Temperature Sensor Issue T2 Fault E22 T2 Temperature Sensor Issue T3 Fault E23 T3 Temperature Sensor Issue T4 Fault E24 T4 Temperature Sensor Issue Bin Probe Fault E25 Bin Level Probe Low Sensor Fault T6 or T7 Fault E26 T6 or T7 Temperature Sensor Issue T6 or T7 Fault E27 T6 or T7 Temperature Sensor Issue iAUCS E28 iAuCS USB COMM E29 USB Communication Fault USB DNLD E30 USB Download Fault Safe Mode E31 Safe Mode RS485 COMM E32 RS485 Communication Fault Keyboard E33 Touchscreen Fault Display E34 Display Fault

E04 High Condenser Temperature

E06 Spare

Charge

Evaporators

Evaporator, Single Circuit

Circuit

24 hours E13 Spare E14 Spare

Temperature

E17 Spare E18 Spare

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Page 80

Displayed Text Code Description

Checksum E36 Check Sum Error WatchDog E37 Watch Dog Alert UI Comm E38 UI Comm Alert

ALERT LOG DETAIL

E01 Long Freeze

3 consecutive 35 minute freeze cycles = Ice machine is off.

E02 Long Harvest

3 consecutive 7minute harvest cycles = Ice machine is off.

E03 Power Loss

When power is interrupted to the ice machine the control board will log the alert in the ELOG and stamp the loss of power on power-up.

E04 High Condenser Temperature

Liquid Line Temperature too High for Self-contained Air Cooled Ice machine = Air Cooled Condenser Fault

Liquid Line Temperature too High for Self-contained Water Cooled ice machine = Water Cooled Condenser Fault

E05 High Pressure Control Opened

The high pressure cutout switch (HPCO) opened.

E06 Spare

E07 Starving TXV Single Evaporator or Low On Charge

The difference of the average evaporator inlet (T3) and outlet (T4) is greater than 12°F in the last 1 minute of the freeze cycle.

E08 TXV Fault Single or Dual Circuit Evaporators

The difference of the average evaporator inlet (T3) and outlet (T4) is greater than 12°F in the last 1 minute of the freeze cycle.

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E09 Flooding Evaporator Fault Single Evaporator, Single Circuit

Average compressor discharge line temperature during the first 6 minutes of the freeze cycle (T2) compared to the average of the Prechill (T1) +50°F is less than 1.05°F.

E10 Flooding Evaporator Fault Dual TXV, Dual Circuit

Average compressor discharge line temperature during the first 6 minutes of the freeze cycle (T2) compared to the average of the Prechill (T1) +50°F is less than 1.05°F.

E11 Refrigeration Fault

The compressor discharge temperature did not increase by at least 10° F, and the evaporator temperature did not decreased by at least 10° F - Measured from Refrigeration Start up or Prechill until 2 minutes into the Freeze cycle.

E12 Curtain Switch Fault Open more than 24 hours

The ice machine is set to ice making and remains in bin full condition for more than 24 hours. The curtain switch is open or curtain is off.

E13 Spare

E14 Spare

E15 Fan Cycle Control Fault - Low Liquid Line Temperature

The liquid line temperature dropped below 60° F for more than one continuous minute during the freeze cycle.

E16 Remote Condensing Unit Fault (CVD Only)

The liquid line temperature dropped below 40° F, or exceeded 140° F for more than 1 continuous minute during the freeze cycle.

E17 Spare

E18 Spare

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E19 Ice Thickness Probe Fault

The monitored Frequencies is out of the appropriate range (probe unplugged or problem with microphone).

E20 Water System Fault

Any of the following:

1. Sensing high water probe and not low water probe.

2. Evaporator outlet temperature is less than -10°F 6.5 to 7.5 minutes in freeze cycle.

3. Low water probe is satisfied at the end of harvest.

4. Low or high water probe is satisfied at end of freeze cycle.

E21 T1 Temperature Sensor Issue

During Pre-chill the thermistor had an average value reading outside the valid range.

E22 T2 Temperature Sensor Issue

During Pre-chill the thermistor had an average value reading outside the valid range.

E23 T3 Temperature Sensor Issue

During Pre-chill the thermistor had an average value reading outside the valid range.

E24 T4 Temperature Sensor Issue

During Pre-chill the thermistor had an average value reading outside the valid range.

E25 Bin Level Probe Low Sensor Fault

The thermistor had an average value reading outside of the valid range for 10 continuous minutes.

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E26 T6 or T7 Temperature Issue

The thermistor had an average value reading outside of the valid range.

E27 T6 or T7 Temperature Issue

The thermistor had an average value reading outside of the valid range.

E28 iAuCS

When the iAuCS clean option is selected from the menu, the control checks for the presence of the iAuCS board. When the iAuCS is not connected it will signal an alert which will clear as soon as the hardware is detected.

E29 USB Communication Fault

USB Communication error; No USB drive in port or defective USB drive.

E30 USB Download Fault

USB Download error related to USB drive or a defective USB drive.

E31 Safe Mode

Safe mode allows the ice machine to operate for a period of time in the event of a Water level or ice thickness probe failure. The controller allows the machine to operate based on model data and historical cycle information.

E32 RS485 Communication Fault

The device plugged into the RS485 port is not communicating between the control board and gateway.

E33 Touchscreen Fault

The touchscreen is not plugged into the control board or is faulty.

E34 Display Fault

The touchscreen is not plugged into the control board or is faulty.

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E36 Check Sum Error

Alert Log Only: Activates on power loss.

E37 Watch Dog Alert

Alert Log Only: Micro Process time out, possible electrical noise.

E38 UI Comm Alert

Alert Log Only: User interface communication error: loose communication cable, power interruption.

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THAW CYCLE

When the damper/curtain does not open during the 7 minute harvest cycle the following Thaw Cycle occurs:

• 7 minutes - The compressor, harvest solenoid valve and dump valve de-energize. The water pump remains energized and the water inlet valve energizes until water touches the high water level probe.

• Water is circulated, dumped and refilled to the high water level probe 18 times (approximately 1 hour). Model 1200 or smaller: Circulate 165 seconds, dump 45 seconds Model 1400 and larger: Circulate 240 seconds, dump 120 seconds

• At the end of the thaw cycle (approximately 1 - 1.75 hour) the ice machine will start another freeze cycle.

Curtain Operation In Thaw Cycle Harvest

• Open & close damper = Continue Thaw Cycle

• Open damper 30 seconds = Full Bin Shutoff

Use the keypad and turn the ice machine off and then on to terminate the cycle. Disconnecting and reconnecting power to end the cycle will result in the ice machine restarting in a harvest cycle.

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SAFE OPERATION MODE

Allows the ice machine to operate up to 72 hours if the ice thickness probe (E19 fault) and/or water level probe sensors fail (E20 fault).

• When the control board starts the safe mode, an alert is flashed on the display to notify the end-user they have a production problem.

• The control board automatically initiates and monitors the safe mode. The control will automatically exit the safe mode if a normal signal is received from the input.

• After 72 consecutive hours the control board will enter a standby mode and turn off.

NOTE: When the ice machine is first powered up or there is a power loss and restarted, a water fill time array will be used in calculating the average of the five cycles.

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E01 LONG FREEZE CYCLE

If the freeze time reaches 35 minutes, the control board automatically initiates a harvest cycle. If 3 consecutive 35-minute freeze cycles occur, the ice machine stops.

E02 LONG HARVEST CYCLE

If the harvest time reaches 7 minutes, the control board will start a Thaw Cycle and automatically return the ice machine to the freeze cycle. After 3 consecutive long harvest cycles the ice machine stops.

ANALYZING WHY A SERVICE FAULT E01 & E02 STOPPED THE ICE MACHINE

Service Faults are designed to stop the ice machine prior to major component failures, most often a minor problem or something external to the ice machine. This may be difficult to diagnose, as many external problems occur intermittently.

Example: An ice machine stops intermittently on Service Fault (long freeze times). The problem could be a low ambient temperature at night, a water pressure drop, the water is turned off one night a week, etc.

Refrigeration and electrical component failures will cause a Service Fault trip. Eliminate all electrical components and external causes first. If it appears that the refrigeration system is causing the problem, use Manitowoc’s Freeze Cycle Refrigeration System Operational Analysis Table, along with detailed charts, checklists, and other references to determine the cause.

The following checklists are designed to assist the service technician in analysis. However, because there are many possible external problems, do not limit your diagnosis to only the items listed.

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E01 LONG FREEZE

Freeze time exceeds 35 minutes for 3 consecutive freeze cycles.

Possible cause checklist

Improper Installation

• Refer to “Installation/Visual Inspection Checklist” on page 108

Water System

• Dirty/defective water level probe

• Low water pressure (20 psig min.)

• High water pressure (80 psig max.)

• High water temperature (90°F/32.2°C max.)

• Clogged water distribution tube

• Dirty/defective water fill valve

• Dirty/defective water dump valve

• Defective water pump

• Loss of water from sump area

Electrical System

• Low incoming voltage

• Ice thickness probe out of adjustment

• Harvest cycle not initiated electrically

• Contactor not energizing

• Compressor electrically non-operational

• Defective fan cycling control

• Defective fan motor

Miscellaneous

• Non-Manitowoc components

• Improper refrigerant charge

• Defective head pressure control

• Defective harvest valve

• Defective compressor

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• TXV starving or flooding (check bulb mounting)

• Non-condensible in refrigeration system

• Plugged or restricted high side refrigerant lines or component

• Restricted air flow/dirty condenser fins

• High inlet air temperature

• Condenser discharge air recirculation

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E02 LONG HARVEST

Harvest time exceeds 7 minutes for 3 consecutive harvest cycles.

Possible Cause Checklist

Improper Installation

• Refer to “Installation/Visual Inspection Checklist” on page 108

Water System

• Water area (evaporator) dirty

• Dirty/defective water dump valve

• Vent tube not installed on water outlet drain

• Water freezing behind evaporator

• Plastic extrusions and gaskets not securely mounted to the evaporator

• Clogged water distribution tube

Electrical System

• Ice thickness probe out of adjustment

• Bin switch closed/defective

• Premature harvest - The control board initiates a harvest cycle when the high water level probe circuit is complete and the low water level probe is open.

Refrigeration System

• Non-Manitowoc components

• Improper refrigerant charge

• Defective head pressure control valve

• Defective harvest valve

• TXV flooding (check bulb mounting)

• Defective fan cycling control

• Water cooled only - Water regulating valve is incorrectly adjusted or will not close during harvest cycle.

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Troubleshooting By Symptom

The troubleshooting procedures follow diagnostic charts. There are four symptoms, the symptom that you are experiencing will determine which diagnostic chart to use. The chart asks yes and no questions to determine the problem. The diagnostic chart will direct you to a procedure to correct the problem. Remote condenser, and self contained models use separate charts.

SYMPTOM #1

Ice Machine Stops Running Ice machine is in Ice Making cycle

or Has a History of Shutting Down

• Refer to Ice Machine Stops Running diagnostic chart

SYMPTOM #2

Ice Machine has a Long Freeze Cycle Ice Formation is Thick

or Thin Ice Fill on Inlet or Outlet of Evaporator or Low Production

Service Fault (possible)

• Refer to Freeze Cycle Refrigeration System Operational Analysis Table

SYMPTOM #3

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

Long Harvest (possible)

• Refer to Refrigeration Harvest Flow Chart

SYMPTOM #4

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

• Refer to Ice Meltout Flow Chart

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RESET TO FACTORY DEFAULTS

Before starting troubleshooting procedures, reset the control board to factory defaults to prevent mis-diagnosis. Before resetting to factory defaults do one of the following:

A. Copy settings to a USB device and flash settings

into the control board when diagnostics are complete.

B. Write down any customer settings so they can be

re-entered when diagnostics are complete.

To reset the ice machine to factory defaults select Menu then Reset Defaults.

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SYMPTOM #1  ICE MACHINE WILL NOT RUN

Refer to Alert/Error

Log

Yes

Error Logged?

Is there an Alert or

Yes

Does the ice machine start

when the Power buon is pushed?

Yes

Install Ground

Micro light ﬂashing?

Yes

Unit has

Yes

adequate ground?

are lights ﬂashing?

Cycle Power to Board,

Yes

Display light

board diagnoscs

Refer to display & control

board diagnoscs

Refer to display & control

Yes

Flashing?

START

Is the display interface

energized and funconing?

control board?

Are there any lights

on or ﬂashing on the

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Install the water curtain/damper

Yes

dampers in place?

All water curtains or

Bin switch light on?

(Mul evap all lights on?)

Yes

board diagnoscs

Refer to display & control

Yes

board connector?

Line voltage at wires

55 & 56 on 9 pin control

Yes

ice machine

Supply power to the

is good?

Control board fuse

Replace fuse & determine which

component caused fuse to blow

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curtain/damper

Replace the water

Refer to bin

switch diagnoscs

Yes

Is magnet on the

water curtain/damper?

ice making

Press power buon to start

Yes

Ice machine starts?

Yes

Test run ice machine

board diagnoscs

Refer to display & control

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SYMPTOM #2  LOW PRODUCTION, LONG FREEZE CYCLE

Ice Machine has a Long Freeze Cycle Ice Formation is Thick

or Thin on Inlet or Outlet of Evaporator or Low Production

How to Use the Freeze Cycle Refrigeration System Operational Analysis Table

GENERAL

These tables must be used with charts, checklists and other references to eliminate refrigeration components not listed on the tables and external items and problems which can cause good refrigeration components to appear defective.

The tables list five different defects that may affect the ice machine’s operation.

NOTE: A low-on-charge ice machine and a starving expansion valve have very similar characteristics and are listed under the same column.

NOTE: Before starting, see “Before Beginning Service” for a few questions to ask when talking to the ice machine owner.

PROCEDURE

Step 1 Complete the “Operation Analysis” column.

Read down the left “Operational Analysis” column. Perform all procedures and check all information listed. Each item in this column has supporting reference material to help analyze each step.

While analyzing each item separately, you may find an “external problem” causing a good refrigerant component to appear bad. Correct problems as they are found. If the operational problem is found, it is not necessary to complete the remaining procedures.

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Step 2 Enter Checkmarks ().

Each time the actual findings of an item in the “Operational Analysis” column matches the published findings on the table, enter a Checkmark.

Example: Freeze cycle suction pressure is determined to be low. Enter a Checkmark in the “low” column.

Step 3 Add the Checkmarks listed under each of

the four columns. Note the column number with the highest total and proceed to “Final Analysis.”

NOTE: If two columns have matching high numbers, a procedure was not performed properly, supporting material was not analyzed correctly or the problem component is not covered by the analysis table.

Before Beginning Service

Ice machines may experience operational problems only during certain times of the day or night. A machine may function properly while it is being serviced, but malfunctions later. Information provided by the user can help the technician start in the right direction, and may be a determining factor in the final diagnosis.

Ask these questions before beginning service:

• When does the ice machine malfunction? (night, day, all the time, only during the Freeze cycle, etc.)

• When do you notice low ice production? (one day a week, every day, on weekends, etc.)

• Can you describe exactly what the ice machine seems to be doing?

• Has anyone been working on the ice machine?

• During “store shutdown,” is the circuit breaker, water supply or air temperature altered?

• Is there any reason why incoming water pressure might rise or drop substantially?

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Reference “Water System Checklist” on page 109

-or-

Ice formation normal

-or-

Ice formation normal

Ice formation is extremely

thin on inlet of evaporator

evaporator

thin on outlet of

Ice formation is extremely

evaporator

No ice formation on entire

-or-

evaporator

No ice formation on entire

-or-

evaporator

No ice formation on entire

All installation and water related problems must be corrected before proceeding with chart.

Air-Temperature Entering Condenser

Water Temperature Entering Ice Machine

Published 24 hour ice production

Calculated (actual) ice production

NOTE: The ice machine is operating properly if the ice fill patterns is normal and ice production is within

10% of charted capacity.

Operational Analysis 1234

Ice Production

Reference “Ice

Production Check” on

SYMPTOM #2  FREEZE CYCLE REFRIGERATION SYSTEM OPERATIONAL ANALYSIS TABLES

SINGLE EVAPORATOR, SINGLE EXPANSION VALVE SELF CONTAINED AIR, WATER & REMOTE CONDENSER

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page 106

Installation and Water

Ice formation is extremely

System

Ice Formation Pattern

evaporator

thin on outlet of

Reference “Ice

Formation Pattern” on

page 110

-or-

entire evaporator

No ice formation on the

Page 99

checklist to eliminate problems and/or components not listed on this table before proceeding.

If discharge pressure is High or Low refer to freeze cycle high or low discharge pressure problem

If suction pressure is High or Low refer to freeze cycle high or low suction pressure problem checklist

page 117 to eliminate problems and/or components not listed on this table before proceeding.

High

Suction pressure is

High

Suction pressure is

Low or Normal

Suction pressure is

High

Suction pressure is

Operational Analysis 1234

________ _______ ______

1 minute Middle End

Freeze Cycle

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into cycle

Discharge Pressure

Freeze Cycle

Suction Pressure

into cycle

________ _______ ______

1 minute Middle End

Page 100

of each other

Inlet and outlet

within 7°F (4°C)

-or-

of each other

Inlet and outlet

within 7°F (4°C)

Inlet and outlet

not within 7°F (4°C)

-and-

of each other

Inlet and outlet

not within 7°F (4°C)

-and-

outlet

of each other

Inlet is colder than

of each other

Inlet and outlet

within 7°F (4°C)

outlet

Inlet is warmer than

Low On Charge

TXV Flooding Compressor

-or-

TXV Starving

Leaking

Harvest Valve

Operational Analysis 1234

Wait 5 minutes into the freeze cycle.

Compare temperatures of

evaporator inlet and evaporator

outlet.

Inlet T3 ____________°F (°C)

Outlet T4 __________ °F (°C)

Difference

T3 & T4 ____________ °F (°C)

Reference “Comparing Evaporator

Inlet and Outlet Temperatures -

Self-contained & Remote Condenser

Single Expansion Valve Machines” on

page 120

Final Analysis

Enter total number of boxes checked

in each column.

Reference “Final Analysis - Self-

contained Air, Water & Remote

Condenser Models” on page 125

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