Manitowoc UDE065A User manual

Part Number 000014797 Rev02 05/18
Undercounter Ice Machines
Technician’s Handbook
This manual is updated as new information and models are
released. Visit our website for the latest manual.
www.manitowocice.com

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.

nWarning
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.
• For a cord-connected appliance, the following must
be included:
• Do not unplug by pulling on cord. To unplug,
grasp the plug, not the cord.
• Unplug from outlet when not in use and before
servicing or cleaning.
• Do not operate any appliance with a damaged
cord or plug, or after the appliance malfunctions
or is dropped or damaged in any manner.
Contact the nearest authorized service
facility for examination, repair, or electrical or
mechanical adjustment

nWarning
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.
• 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 front panel 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.
• Connect to a potable water supply only.
• This equipment contains refrigerant charge.

nWarning
Follow these precautions to prevent personal injury
while operating or maintaining this equipment.
• Legs or casters must be installed and the legs/casters
must be screwed in completely. 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. Swivel casters must be mounted
on the front and rigid casters must be mounted on
the rear. Lock the front casters after installation is
complete.
• Some 50 Hz 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.
• 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.

nWarning
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.

DANGER
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.
• 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.
We reserve the right to make product improvements at
any time. Specifications and design are subject to change
without notice.

Table of Contents
Part Number 000014797 Rev02 05/18 9
General Information
Model Numbers............................... 17
How to Read a Model Number ................ 19
Ice Machine Warranty Information............ 19
Installation
Location of Ice Machine....................... 21
Ice Machine Clearance Requirements......... 22
Ice Machine Heat of Rejection ................ 22
Leveling the Ice Machine...................... 23
Electrical Requirements....................... 24
Electrical Specifications....................... 24
Water Service/Drains ......................... 26
Water Supply.............................. 26
Cooling Tower Applications................ 27
Maintenance
Cleaning and Sanitizing Procedure U140, U190,
U240, U310 ................................... 29
Preventative Maintenance Cleaning........ 39
Cleaning the Condenser ................... 41
Removal from Service/Winterization ....... 42
Bin Removal............................... 43
Cleaning and Sanitizing Procedure UDE065 .. 44
Cleaning The Condenser................... 50
Removal from Service/Winterization ....... 51
Cleaning and Sanitizing Procedure UDE080 .. 52
Cleaning The Condenser................... 63
Removal from Service/Winterization ....... 64

10 Part Number 000014797 Rev02 05/18
Operation
Sequence of Operation U0140/UF0140/U0190/
UF0190/U240/UF240/U310/UF310 ........... 65
Touch Pad Features........................ 65
Ice Making Sequence of Operation ........... 68
Control board Revisions ................... 68
Software revisions......................... 68
Sequence of Operation .................... 69
Control Board Timers ...................... 71
Safety Limits .............................. 72
U0140/UF0140/U0190/UF0190/U240/UF240/
U310/UF310 Energized Parts Chart......... 74
Operational Checks ........................... 76
Ice Thickness Check ....................... 76
Ice Thickness Adjustment.................. 76
Minimum/Maximum Slab weight .......... 77
Sequence of Operation UDE065 .............. 78
UDE065 Energized Parts Chart ............. 80
Ice Thickness Adjustment.................. 81
Sequence of Operation UDE080 .............. 82
UDE080 Energized Parts Chart ............. 84
Operational Checks UDE080 .................. 86
Siphon System ............................ 86
Water Level ............................... 86
Water Level Check......................... 87
Ice Thickness Check ....................... 88

Part Number 000014797 Rev02 05/18 11
Troubleshooting
Troubleshooting U0140/UF0140/U0190/
UF0190/U240/UF240/U310/UF310 ........... 89
Problem Checklist ......................... 89
Control Board Test Mode .................. 92
Operating Ice Machine with Bin and Touch Pad
Removed ................................. 92
Diagnosing an Ice Machine that Will Not Run ..
........................................... 93
Ice Machine Does Not Cycle Into Harvest when
Water Loses Contact with the Harvest Float
Switch .................................... 94
Ice Machine Cycles Into Harvest Before Water
Loses Contact with the Harvest Float Switch 96
Ice Production Check ...................... 98
Installation/Visual Inspection Checklist....100
Water System Checklist ...................101
Ice Formation Pattern.....................102
Safety Limit Feature ......................104
Analyzing Discharge Pressure ............111
Analyzing Suction Pressure ...............113
Harvest Valve.............................117
Comparing Evaporator Inlet/Outlet
Temperatures ............................121
Discharge Line Temperature Analysis......122
Refrigeration Component Diagnostics ....124
Refrigeration Analysis Chart ..............126

12 Part Number 000014797 Rev02 05/18
Troubleshooting UDE065 ....................130
Diagnosing an ice machine that will not run...
..........................................130
Refrigeration Diagnostics Overview UDE065 ..
..........................................131
Ice Production Check .....................134
Installation/Visual Inspection Checklist....136
Water System Checklist ...................137
UDE065 Refrigeration Diagnostics...........138
Flooding Expansion Valve Symptoms .....139
Starving Expansion Valve/Low Refrigerant
Charge Symptoms: .......................139
Overcharged System Symptoms ..........139
Analyzing Ice Formation Pattern ..........140
Analyzing Discharge Line Temperature ...142
Analyzing Suction Line Temperature ......144
Comparing Evaporator Inlet/Outlet
Temperatures ............................147
Discharge Line Temperature Analysis......148
Harvest Valve.............................150
Troubleshooting UDE080 ....................154
Diagnosing An Ice Machine That Will Not Run
..........................................154
Safety Limit Feature ......................155
Diagnosing Ice Thickness Control Circuitry 160
Ice Production Check .....................162
Installation/Visual Inspection Checklist....164
Water System Checklist ...................165
Flooding Expansion Valve Symptoms .....167
Starving Expansion Valve/Low Refrigerant
Charge Symptoms: .......................167
Overcharged System Symptoms ..........167
Analyzing Ice Formation Pattern ..........168
Analyzing Discharge Line Temperature ...170
Analyzing Suction Line Temperature ......172
Comparing Evaporator Inlet/Outlet
Temperatures ............................175
Discharge Line Temperature Analysis......176
Harvest Valve.............................178

Part Number 000014797 Rev02 05/18 13
Component Check Procedures
Main Fuse ................................183
Bin Switch
UDE080/U0140/UF0140/U0190/UF0190/U240/
UF240/U310/UF310 ......................184
Touch Pad
U0140/UF0140/U0190/UF0190/U240/UF240/
U310/UF310 .............................186
Float Switch
U0140/UF0140/U0190/UF0190/U240/UF240/
U310/UF310 .............................188
Water Trough Thermistor
U0140/UF0140/U0190/UF0190/U240/UF240/
U310/UF310 .............................190
Bin Thermostat
UDE065 ..................................192
Liquid Line Thermistor
UDE065 ..................................193
ON/OFF/WASH Toggle Switch
UDE065/UDE080 .........................195
Compressor Electrical Diagnostics ........196
Fan Cycle Control
UDE080/U0140/UF0140/U0190/UF0190/U240/
UF240/U310/UF310 ......................198
High Pressure Cutout (HPCO) Control
UDE080 U0140/UF0140/U0190/UF0190/U240/
UF240/U310/UF310 ......................199

14 Part Number 000014797 Rev02 05/18
Filter-Driers ..................................200
Refrigerant Recovery/Evacuation............201
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Refrigerant Re-use Policy .................202
Recovery and Recharging Procedures
U0140/UF0140/U0190/UF0190/U240/UF240/
U310/UF310 .............................204
Recovery and Recharging Procedures
UDE065/UDE080 .........................207
System Contamination Cleanup .............210
Determining Severity of Contamination...210
Mild System Contamination Cleanup
Procedure................................212
Severe System Contamination Cleanup
Procedure................................213
Replacing Pressure Controls without
Removing Refrigerant Charge.............214
Total System Refrigerant Charge.............216

Part Number 000014797 Rev02 05/18 15
Charts
Cycle Times, 24 Hr. Ice Production and
Refrigerant Pressure Charts..................217
UDE065 Operating Temperatures .........218
UDE080 Self-contained Air-cooled ........220
UDE080 Operating Temperatures .........221
U0140/UF0140 Self-contained Air-cooled . 222
U0140 Self-contained Water-cooled.......223
U0190/UF0190 Self-contained Air-cooled . 224
U0240/UF0240 Self-contained Air-cooled . 225
U0240/UF0240 Self-contained Water-cooled ..
..........................................226
U0310/UF0310 Self-contained Air-cooled . 227
U0310/UF0310 Self-contained Water-cooled ..
..........................................228

16 Part Number 000014797 Rev02 05/18
Diagrams
Wiring Diagrams .............................229
UDE065 Wiring Diagram ..................230
UDE080 Wiring Diagram ..................232
UF0140/UF0240 Wiring Diagram 1PH Air/
Water ....................................234
U0140/U0190/U0240 Wiring Diagram
With J4 Thermistor Terminal - 1Ph Air/Water ...
..........................................236
U0140/U0190/U0240 Wiring Diagram
Prior to Thermistor Terminal - 1PH Air/Water...
..........................................238
UF0310 Wiring Diagram 1PH Air/Water ...240
U0310 Wiring Diagram
With J4 Thermistor Terminal - 1Ph Air/Water ..
..........................................242
U0310 Wiring Diagram
Prior To Thermistor Terminal - 1PH Air/Water ..
..........................................244
Electronic Control Boards....................246
Electronic Control Board UF Models ......246
Electronic Control Board U Models with J4
Thermistor Terminal ......................248
Electronic Control Board U Models Prior to
Thermistor Terminal ......................250
Electronic Control Board UDE065 .........252
Electronic Control Board UDE080 .........254
Tubing Schematics...........................256
Tubing Schematic - UDE065 ..............256
Tubing Schematic - UDE080/U0140/UF0140...
..........................................257
Tubing Schematic - U0190/UF0190/U0240/
UF0240/U0310/UF0310...................257

Part Number 000014797 Rev02 05/18 17
Model Numbers
This manual covers the following models:
Self-contained
Air-cooled
Self-contained
Water-cooled
UDE065A
UDE080A
UDF0140A
UYF0140A
URF0140A
UDP0140A
UYP0140A
UDF0240A UDF0240W
UYF0240A UYF0240W
UDF0310A UDF0310W
UYF0310A UYF0310W
URF0310A URF0310W
UDP0310A
UYP0310A
General Information

18 Part Number 000014797 Rev02 05/18
Self-contained
Air-cooled
Self-contained
Water-cooled
UD0140A UD0140W
UD0140AE UD0140WE
UY0140A UY0140W
UY0140AE UY0140WE
UR0140A –
UR0140AE –
UD0190A –
UD0190AE –
UY0190A –
UY0190AE –
UR0190A –
UR0190AE –
UD0240A UD0240W
UD0240AE UD0240WE
UY0240A UY0240W
UY0240AE UY0240WE
UR0240A –
UR0240AE –
UD0310A UD0310W
UD0310AE UD0310WE
UY0310A UY0310W
UY0310AE UY0310WE
UR0310A –
UR0310AE –

Part Number 000014797 Rev02 05/18 19
How to Read a Model Number

Cube Size
Series
Capacity
Condenser
Type
E - WRAS 50Hz
A - Air-cooled
W - Water-cooled
R - Regular
D - Dice
Y - Half-dice
nWarning
An ice machine contains high voltage electricity and
refrigerant charge. Repairs are to be performed by
properly trained refrigeration technicians aware of the
dangers of dealing with high voltage electricity and
refrigerant under pressure.
Ice Machine Warranty Information
For warranty information visit:
http://www.manitowocice.com/Service/Warranty
• Warranty Verification
• Warranty Registration
• View and download a copy of the warranty Owner
Warranty Registration Card
Warranty coverage begins the day the ice machine is
installed.
Refrigerant
E - R134A
F - R404a
P - R290
Blank - Not
Indicated

20 Part Number 000014797 Rev02 05/18
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