UG Series Ice Machine
Installation, Operation and Maintenance Manual
This manual is updated as new information and models are released. Visit our website for the latest manual.
Original Document
Part Number: 040003628 Rev. 01 01/14/18
Caution
,
Read this instruction before operating this equipment.
Safety Notices
!
!
Read These Before Proceeding:
As you work on Manitowoc equipment, be sure to pay
close attention to the safety notices in this manual.
Disregarding the notices may lead to serious injury and/
or damage to the equipment.
Throughout this manual, you will see the following types
of safety notices:
Warning
Text in a Warning box alerts you to a potential
personal injury situation. Be sure to read the Warning
statement before proceeding, and work carefully.
Caution
Text in a Caution box alerts you to a situation in
which you could damage the equipment. Be sure to
read the Caution statement before proceeding, and
work carefully.
Procedural Notices
As you work on Manitowoc equipment, be sure to read
the procedural notices in this manual. These notices
supply helpful information which may assist you as you
work.
Throughout this manual, you will see the following types
of procedural notices:
Caution
Proper installation, care and maintenance are
essential for maximum performance and trouble-free
operation of your Manitowoc equipment. Read and
understand this manual. It contains valuable care and
maintenance information. If you encounter problems
not covered by this manual, do not proceed, contact
Manitowoc Foodservice Group. We will be happy to
provide assistance.
Important
Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.
Warning
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
Warning
These products are hermetically sealed and contain
fluorinated greenhouse gas R404A.
Important
Text in an Important box provides you with
information that may help you perform a procedure
more efficiently. Disregarding this information will not
cause damage or injury, but it may slow you down as
you work.
NOTE: Text set off as a Note provides you with simple,
but useful, extra information about the procedure you
are performing.
Warning
These products are hermetically sealed and contain
fluorinated greenhouse gas R134A.
NOTE: SAVE THESE INSTRUCTIONS.
Section 1
General Information
General ....................................................................................................................1-1
Model Numbers ......................................................................................................1-1
Model Number Identification: ................................................................................1-1
Model/Serial Number Location .............................................................................1-2
Owner Warranty Registration Card ......................................................................1-3
Section 2
Installation Instructions
General ....................................................................................................................2-1
Ice Machine Dimensions .......................................................................................2-1
Location of Ice Machine ........................................................................................2-2
Leveling the Ice Machine .......................................................................................2-2
Electrical Service ...................................................................................................2-3
Water Service/Drains .............................................................................................2-4
Installation Checklist .............................................................................................2-6
Before Starting the Ice Machine ...........................................................................2-6
Table of Contents
General ............................................................................................................1-3
Commercial Warranty Coverage .....................................................................1-3
Voltage .............................................................................................................2-3
Fuse/Circuit Breaker ........................................................................................2-3
Total Circuit Ampacity ......................................................................................2-3
Water Supply ...................................................................................................2-4
Water Inlet Lines ..............................................................................................2-4
Drain Connections ...........................................................................................2-4
Water Supply and Drain Line Sizing/Connections ...........................................2-4
i Part Number: 040003628 Rev. 01 01/14/18
Section 3
Operation
Component Identification ......................................................................................3-1
Component Removal .............................................................................................3-2
Ice Making Sequence of Operation ......................................................................3-5
Operational Checks ..............................................................................................3-6
Section 4
Maintenance
General ....................................................................................................................4-1
Cleaning the Condenser ........................................................................................4-2
Interior Cleaning and Sanitizing ...........................................................................4-3
Exterior Cleaning ...................................................................................................4-4
Removal from Service/Winterization ....................................................................4-4
Section 5
Before Calling for Service
Table of Contents (continued)
Top Cover .......................................................................................................3-2
Bin Door ...........................................................................................................3-2
Water Curtain ...................................................................................................3-3
Ice Chute .........................................................................................................3-3
Spray Bar .........................................................................................................3-4
Sump Drain Overflow Tube .............................................................................3-4
Initial Start-Up ..................................................................................................3-5
General ............................................................................................................3-6
Ice Cube Thickness Check ..............................................................................3-6
Cube Shape .....................................................................................................3-6
Air-cooled Condenser .....................................................................................4-2
Water-cooled Condenser and Water Regulating Valve ...................................4-2
General ............................................................................................................4-3
Cleaning & Sanitizing Procedure .....................................................................4-3
General ............................................................................................................4-4
Air-cooled Ice Machines ..................................................................................4-4
Water-cooled Ice Machines .............................................................................4-4
Checklist .................................................................................................................5-1
ii Part Number: 040003628 Rev. 01 01/14/18
General
UG 040 A C - 2 5 1 F
Section 1
General Information
It is recommended that this ice machine be inspected
and installed by a qualified service technician.
Warning
If you do not understand the procedures or the safety
precautions that must be followed, call your local
service representative to perform the necessary
installation procedures for you.
Model Numbers
This manual covers the following models:
Self-Contained Air-Cooled Self-Contained Water-Cooled
UG018A N/A
UG020A N/A
UG030A UG030W
UG040A N/A
UG050A UG050W
UG065A N/A
UG080A N/A
Follow all recommendations and instructions for proper
installation and safe operation of this ice machine.
Warning
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
Model Number Identification:
Ice Machine Model
018 = Model 18
020 = Model 20
030 = Model 30
040 = Model 40
050 = Model 50
065 = Model 65
080 = Model 80
A = Air-Cooled
W = Water-Cooled
Blank: Non-market specific
S: Saudi Arabic
K: Korea
C: China
G: GS approved
E: WRAS approved
B: Brazil
1 = 115V
2 = 230V
5 = 50Hz
6 = 60Hz
I = Oblique Flat Blades with Ground
B = 115V Grounded Power Cord
1 = 1 Phase
F = Schuko
G = Blade
Z = No Plug/Bare Lead
Part Number: 040003628 Rev. 01 01/14/18 1-1
General Information Section 1
Model/Serial Number Location
Record the model and serial number of your ice
machine and bin or dispenser in the space provided
below. These numbers are required when requesting
information from your local Manitowoc distributor, or
Manitowoc Ice, Inc.
The model and serial number are listed on the OWNER
WARRANTY REGISTRATION CARD. They are also
listed on the MODEL/SERIAL NUMBER DECAL affixed
to the ice machine, remote condenser and storage bin.
Model/Serial Number
Location
Model:______________________ Serial Number:______________________
1-2 Part Number: 040003628 Rev. 01 01/14/18
Model/Serial Number Location
Section 1 General Information
Owner Warranty Registration Card
GENERAL
The packet containing this manual also includes
warranty information. Warranty coverage begins the day
your new ice machine is installed.
Important
Complete and mail the OWNER WARRANTY
REGISTRATION CARD as soon as possible to
validate the installation date.
If you do not return your OWNER WARRANTY
REGISTRATION CARD, Manitowoc will use the date
of sale to the Manitowoc Distributor as the first day of
warranty coverage for your new ice machine.
COMMERCIAL WARRANTY COVERAGE
General
The following Warranty outline is provided for your
convenience. For a detailed explanation, read the
warranty bond shipped with each product.
Contact your local Manitowoc representative or
Manitowoc Ice, Inc. if you need further warranty
information.
Parts
Manitowoc warrants the ice machine against defects
in materials and workmanship, under normal use
and service for two (2) years from the date of original
installation.
Labor
Labor required to repair or replace defective
components is covered for one (1) year from the date of
original installation.
Exclusions
The following items are not included in the ice
machine’s warranty coverage:
1. Normal maintenance, adjustments and cleaning as
outlined in this manual.
2. Repairs due to unauthorized modifications to the ice
machine or use of non-standard parts without prior
written approval from Manitowoc Ice, Inc.
3. Damage caused by improper installation of the
ice machine, electrical supply, water supply or
drainage, or damage caused by floods, storms, or
other acts of God.
4. Premium labor rates due to holidays, overtime, etc.;
travel time; flat rate service call charges; mileage
and miscellaneous tools and material charges
not listed on the payment schedule. Additional
labor charges resulting from the inaccessibility of
equipment are also excluded.
5. Parts or assemblies subjected to misuse, abuse,
neglect or accidents.
6. Damage or problems caused by installation,
cleaning and/or maintenance procedures
inconsistent with the technical instructions provided
in this manual.
Authorized Warranty Service
To comply with the provisions of the warranty, a
refrigeration service company, qualified and authorized
by your Manitowoc distributor, or a Contracted Service
Representative must perform the warranty repair.
NOTE: If the dealer you purchased the ice machine
from is not authorized to perform warranty service,
contact your Manitowoc distributor or Manitowoc Ice,
Inc. for the name of the nearest authorized service
representative.
Part Number: 040003628 Rev. 01 01/14/18 1-3
Service Calls
Normal maintenance, adjustments and cleaning as
outlined in this manual are not covered by the warranty.
If you have followed the procedures listed in this
manual, and the ice machine still does not perform
properly, call your authorized service company.
General Information Section 1
THIS PAGE INTENTIONALLY LEFT BLANK
1-4 Part Number: 040003628 Rev. 01 01/14/18
Section 2
/
+
:
Installation Instructions
General
These instructions are provided to assist the qualified installer.
Ice Machine Dimensions
Model L W H
UG018 mm 343 450 635
UG020 mm 450 475 650
UG030 mm 450 475 650
UG040 mm 550 550 800
UG050 mm 550 550 800
UG065 mm 700 600 902
UG080 mm 700 600 902
Part Number: 040003628 Rev. 01 01/14/18 2-1
Installation Instructions Section 2
!
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.
• The location must be free of airborne and other
contaminants.
• The air temperature must be at least 10°C (50°F),
but must not exceed 43°C (110°F).
• The location must not be near heat-generating
equipment or in direct sunlight.
• The location must be capable of supporting the
weight of the ice machine and a full bin of ice.
• The location must allow enough clearance for water,
drain and electrical connections in the rear of the ice
machine.
• The location must not obstruct airflow through or
around the ice machine (condenser airflow is in and
out the front). Refer to the chart below for clearance
recommendations:
Self-Contained
Air-Cooled
Top/Sides 203 mm (8")* 127 mm (5")*
Back 127 mm (5") 127 mm (5")
Self-Contained
Water-Cooled
Leveling the Ice Machine
Levelers are included with all ice machine. Legs are an
available option.
1. Screw the legs or levelers into the bottom of the ice
machine.
2. Screw the foot of each leg or leveler in as far
as possible. Move the ice machine into its final
position.
3. Level the ice machine correctly. Use a level on top
of the ice machine. Turn each foot as necessary to
level the ice machine from front to back and side to
side.
NOTE: The ice machine may be built into a cabinet.
*There is no minimum clearance requirement for the
top or left and right sides of the ice machine. The listed
values are recommended for efficient operation and
servicing only.
Caution
The ice machine must be protected if it will be
subjected to temperatures below 0°C (32°F). Failure
caused by exposure to freezing temperatures is not
covered by the warranty.
2-2 Part Number: 040003628 Rev. 01 01/14/18
Section 2 Installation Instructions
Electrical Service
Warning
All wiring must conform to local, state and national
codes. The ice machine must be grounded in
accordance with national and local electrical codes.
VOLTAGE
The maximum allowable voltage variation is ±6% of the
rated voltage on the ice machine model/serial number
plate at start-up (when the electrical load is highest).
All ice machines are factory pre-wired with a 2 meter (6
ft) power cord. No plug is supplied.
FUSE/CIRCUIT BREAKER
A separate fuse/circuit breaker must be provided for
each ice machine. An electrical disconnect switch must
be provided if the ice machine is hard-wired (wired
without a plug).
TOTAL CIRCUIT AMPACITY
The total circuit ampacity is used to help select the wire
size of the electrical supply.
The wire size (or gauge) is also dependent upon
location, materials used, length of run, etc., This must
be determined by a qualified electrician.
Warning
RISK OF ELECTRICAL SHOCK
FOR HARD-WIRED (WIRED WITHOUT A
PLUG) MACHINE, IT MUST BE PROPERLY
GROUNDED AND CONNECTED TO THE FIELD
WIRING TERMINAL IN ACCORDANCE WITH ALL
APPLICABLE NATIONAL AND LOCAL ELECTRICAL
CODES BY A QUALIFIED ELECTRICIAN. BEFORE
CONNECTING WIRES, DISCONNECT POWER
AT THE ELECTRICAL DISCONNECT AND LOCK
OUT TO PREVENT ACCIDENTALLY ENERGIZING.
CONNECT ALL ELECTRICAL WIRING BEFORE
USE - DO NOT ENERGIZE ICE MACHINE UNTIL
INSTALLATION IS COMPLETE.
1. Connect the three supply lead wires (Blue, Brown,
and Yellow/Green) to the field wiring terminal, “L”,
“N”, and “G”. The Yellow/Green wire must connect
to the “G” (ground).
2. After connecting the wiring to the terminal strip, the
supply lead must be secured to the cabinet with a
strain relief near the terminal strip.
3. Verify wiring is contained in the electrical wiring box.
Ice Machine
UG018 220/1/50 10 2.0 N/A N/A
UG020
UG030
UG040
UG050
UG065
UG080
Voltage/Phase/
Cycle
220/1/50 10 2.3 N/A N/A
220/1/60 10 2.3 N/A N/A
220/1/50 15 2.8 15 2.5
220/1/60 15 2.8 N/A N/A
115/1/60 15 5.5 N/A N/A
220/1/50 15 3.0 N/A N/A
220/1/60 15 3.0 N/A N/A
220/1/50 15 4.0 15 2.8
220/1/60 15 4.0 N/A N/A
115/1/60 15 6.8 N/A N/A
220/1/50 15 4.5 N/A N/A
220/1/60 15 4.5 N/A N/A
220/1/50 15 5.5 N/A N/A
220/1/60 15 5.5 N/A N/A
Maximum Fuse/
Circuit Breaker
Air-Cooled Water-Cooled
Total Amps
Maximum Fuse/
Circuit Breaker
Total Amps
Part Number: 040003628 Rev. 01 01/14/18 2-3
Installation Instructions Section 2
Water Service/Drains
WATER SUPPLY
Local water conditions may require treatment of the
water to inhibit scale formation, filter sediment, remove
chlorine, and improve taste and clarity.
Important
If you are installing a water filter system, make
sure that you use a separate line for water-cooled
condenser. Filter life will be greatly reduced if filtered
water is used for a water-cooled condenser.
WATER INLET LINES
Follow these guidelines to install water inlet lines:
• Do not connect the ice machine to a hot water
supply. Be sure all hot water restrictors installed for
other equipment are working. (Check valves on sink
faucets, dishwashers, etc.)
• Water pressure to the machine should be between
1.4 and 5.5 bar (20 and 80 psi).
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS
• If water pressure exceeds the maximum 5 bar
recommended pressure, obtain a water pressure
regulator from your Manitowoc distributor. Adjust
pressure to 2.5 bar (37 psi).
• Install a water shut-off valve.
• Connect to a potable water supply only.
DRAIN CONNECTIONS
Follow these guidelines when installing drain lines
to prevent drain water from flowing back into the ice
machine and storage bin:
• Drain lines must have a 3.8 cm drop of run for each
meter (1.5 inch for 3 feet), and must not create traps.
• The floor drain must be large enough to
accommodate drainage from all drains.
• Run separate bin and water-cooled condenser drain
lines. Insulate them to prevent condensation by
temperature.
Water Temperature Water Pressure Ice Machine Fitting
*Ice Making Water Inlet 10°C (50°F) Min.
32.2°C (90°F) Max.
**Drain Connection
Outlet
Condenser Water Inlet 0.6°C (33°F) Min.
32.2°C (90°F) Max.
Condenser Water
Outlet
— — 7/8" Fitting Barbed 18 mm (3/4") Minimum
— — 1/2" Female Pipe
1.4 bar (20 psi) Min.
5.5 bar (80 psi) Max.
1.4 bar (20 psi) Min.
10.3 bar (150 psi) Max.
3/4" Male Pipe Thread 15 mm (1/2") Inside
3/8" Female Pipe
Thread
Thread
* Water inlet hose supplied with machine. 3/4" Female pipe thread/2 meters long.
** Drain hose supplied with machine. 7/8" (22.2 mm) Hose/2 meters long.
Tubing Size Up to Ice
Machine Fitting
Diameter Minimum
Inside Diameter
15 mm (1/2") Inside
Diameter Minimum
15 mm (1/2") Minimum
Inside Diameter
2-4 Part Number: 040003628 Rev. 01 01/14/18
Section 2 Installation Instructions
Ice Making
Water Inlet
Water-Cooled
Condenser Inlet
Water-Cooled
Condenser Outlet
Electrical
Drain
Self-Contained
Water-Cooled
Electrical
Drain
Ice Making
Water Inlet
Self-Contained
Air-Cooled
WATER SUPPLY AND DRAIN LINE CONNECTIONS
Part Number: 040003628 Rev. 01 01/14/18 2-5
Installation Instructions Section 2
Installation Checklist
Is the ice machine level?
Have all of the internal packing been
removed?
Have all of the electrical and water
connections been made?
Has the supply voltage been tested and
checked against the rating on the nameplate?
Are all components installed?
Has the ice machine been installed where
ambient temperatures will remain in the range
of 10 - 43°C (50 - 110°F)?
Has the ice machine been installed where the
incoming water temperature will remain in the
range of 10 - 32.2°C (50 - 90°F)?
Before Starting the Ice Machine
All ice machines are factory-operated and adjusted
before shipment. Normally, new installations do not
require any adjustment.
To ensure proper operation, follow the Operational
Checks in Section 3 of this manual. Starting the ice
machine and completing the Operational Checks are
the responsibilities of the owner/operator.
Adjustments and maintenance procedures outlined
in this manual are not covered by the warranty.
Warning
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
Is there a separate drain line for the water-
cooled condenser?
Are all electrical leads free from contact with
refrigeration lines and moving equipment?
Has the owner/operator been instructed
regarding maintenance and the use of
Manitowoc Cleaner and Sanitizer?
Has the owner/operator completed the
warranty registration card?
Has the ice machine and bin been sanitized?
Has this manual been given to the owner/
operator?
Is the ON - OFF - WASH switch set to the ON
position?
2-6 Part Number: 040003628 Rev. 01 01/14/18
Component Identification
Section 3
Operation
Water
Curtain
Water Sump
Trough
Control Board
ON/OFF/WASH
Toggle Switch
Air-Cooled
Condenser
Evaporator
Ice Chute
Spray
Nozzles
Spray Bar
Part Number: 040003628 Rev. 01 01/14/18 3-1
Toggle Switch
Operation Section 3
Component Removal
TOP COVER
For easiest access to the evaporator compartment, the
top cover can be removed.
1. Remove two screws on the rear of the ice machine.
2. Slide top cover back to disengage the three pins
from the front panel.
Remove two screws – slide
cover back to remove.
BIN DOOR
Allows access to the storage bin.
1. Remove top cover.
2. Slide door up until rear pins align with slot in door
tracks.
3. Lift rear door pins out and slide door up until front
door pins align with slot.
4. Lift door out of door track.
Align door pins with track slots,
then lift door out of track.
3-2 Part Number: 040003628 Rev. 01 01/14/18
Section 3 Operation
WATER CURTAIN
The water curtain is designed to keep the spraying
water from escaping the evaporator compartment.
Removal of the bin door is not required, but enhances
access.
1. Grasp the ice curtain and lift up.
2. To re-install into ice machine, pivot the water curtain
and pull down into position. Make sure tabs are
secure in grooves.
Water Curtain
ICE CHUTE
The ice chute is positioned over the spray nozzles and
allows the ice to easily fall into the bin. It must be firmly
positioned over the spray bar assembly, with the front
edge inside the water trough or the spray nozzles will
not be aligned with the spray holes, and spray water will
fall into bin.
1. Grab protruding spray holes on one end and lift up.
2. Pivot ice chute and remove.
3. To re-install ice chute, grasp protruding spray holes
and position over spray bar assembly. Make sure
rear supports are over spray bar assembly, and
front edge is inside of water trough.
Ice Chute
Part Number: 040003628 Rev. 01 01/14/18 3-3
Operation Section 3
SPRAY BAR
The spray bar supplies water to the individual icemaking cups. Water from the water pump sprays
through the nozzles, located on the upper portion of the
tubes.
1. Grasp one end of the spray bar, lift up and remove
from seat formed in water trough.
2. Remove both plastic clips on water inlet tubing by
grasping both ears on clip and separating.
3. Apply food grade lubricant to ease re-assembly of
spray bar components when necessary.
4. To re-install spray bar, position water inlet tubing on
inlet ports, and squeeze clips until tight.
5. Reposition assembly on water trough seat.
Nozzles and inserts can be removed for cleaning by
unscrewing nozzles. Inserts are located inside the spray
bar ports. The spray bar also disassembles for easy
cleaning.
SUMP DRAIN OVERFLOW TUBE
The sump drain overflow tube is located in the
evaporator water sump.
1. Remove shutters and ice chute.
2. Lift spray bar or disconnect and remove for easiest
access.
3. Pull up on overflow tube to remove.
4. To replace plug, insert in hole and push with force to
make a tight seal.
Overflow Tube
3-4 Part Number: 040003628 Rev. 01 01/14/18
Section 3 Operation
Ice Making Sequence of Operation
INITIAL START-UP
1. Water Inlet and Pressure Equalization
Turn the toggle switch to “ON” position. The water fill
valve and harvest valve are energized. 300 seconds
later, the water fill valve is de-energized. 20 seconds
after the harvest valve solenoid is energized, the
compressor is energized. 300 seconds after the
compressor is energized, the harvest valve solenoid is
de-energized, the water pump and the fan motor are
energized, and the machine goes into freeze cycle.
2. Freeze Cycle
The pump sprays water into the inverted cups. The
water freezes layer by layer, until an ice cube forms in
each cup.
When the “water temperature” is equal to or less than
2°C for more than 5 seconds, the control will read the
“liquid line temperature” and dip switch setting, and give
the “freeze postpone time” and “fan shut-off time”. The
board will shut off the fan before the end of the freeze
cycle to assist harvest. When the freeze postpone time
has elapsed, the harvest cycle is initiated.
3. Harvest Cycle
The compressor continues to operate and the water
pump is de-energized. The hot gas valve energizes,
allowing hot gas to enter and warm the evaporator. The
water valve is also energized, aiding with harvest, as
well as filling up the sump with fresh water for a new
freeze cycle.
At the point of 2 minutes to freeze end, the board will
read the “liquid line temperature” again and calculate
the “harvest time”.
The ice falls from the cups and is directed into the bin
by the ice chute. The harvest cycle continues until the
harvest time has elapsed, then machine goes into a
new freeze cycle.
4. Automatic Shut-Off
When the storage bin is full, the ice will come in contact
with the bin thermostat which is located inside the bin.
The machine will stop after approximately 45 seconds of
continuous ice contact with the bin thermostat probe.
The ice machine remains off until a 3-minute delay
has elapsed and enough ice has been removed from
the storage bin to allow the ice to fall clear of the bin
thermostat probe. As the ice clears the probe, the bin
thermostat warms up and the machine starts another
freeze cycle.
Part Number: 040003628 Rev. 01 01/14/18 3-5
Operation Section 3
Operational Checks
GENERAL
DIP Switch
Your ice machine was factory-operated and adjusted
before shipment. Normally, a newly installed ice
machine does not require any adjustment.
To ensure proper operation, always follow these
Operational Checks when starting the ice machine:
• for the first time
• after a prolonged out-of-service period
• after cleaning and sanitizing
Routine adjustments and maintenance procedures
outlined in this manual are not covered by the warranty.
Important
It is recommended that adjustments made to this ice
machine be made by a qualified technician. Improper
adjustment may seriously affect the life of this ice
machine.
ICE CUBE THICKNESS CHECK
The ice cube thickness is factory-set to maintain the ice
cube thickness at the proper size and weight.
1. Allow the ice machine to operate for three complete
cycles. The cubes should have a small dimple in the
center.
2. Cycle times vary, according to surrounding air and
water inlet temperatures.
3. If cubes are not full (large dimple), raise the
DIP switch level to increase cube size. Allow ice
machine to complete three cycles, then check cube.
4. If cubes are too full (no dimple), lower the DIP
switch level to decrease cube size. Allow ice
machine to operate three complete cycles.
5. The DIP switch can be adjusted to five levels:
-2/-1/0/+1/+2. Ensure that only one level switch is
pressed.
Decrease
Cube Size
Factory
Default
Setting
Increase
Cube Size
CUBE SHAPE
The standard cube has an average weight of 19 grams.
Notice the normal dimple in the center of the cube.
Dimple
33
34
Standard Cube 19g
3-6 Part Number: 040003628 Rev. 01 01/14/18
General
!
Section 4
Maintenance
The end user is responsible for maintaining the ice
machine in accordance with the instructions in this
manual. Maintenance procedures are not covered by
the warranty.
Basic cleaning and maintenance of your ice machine
will increase its reliability, increase performance,
and help save on water and power consumption. Ice
production will be maintained within the manufacturer’s
guidelines, and unwanted repairs due to maintenance
Caution
If you do not understand the procedures or the safety
precautions that must be followed, call your local
service representative to perform the necessary
maintenance procedures for you.
issues will be minimized.
The chart below is an overview of the maintenance that
the end user and service technician should perform, and
the frequency. These figures are the minimum required.
If the ice machine is supplied with hard water, more
frequent evaporator cleaning should be performed. If
the condenser air filter is totally blocked after one week,
more frequent cleaning is recommended.
Maintenance Weekly Monthly Semi Annual Annual After prolonged
shutdown
Clean Cabinet
Exterior
Sanitize Ice Bin X X X
Clean
Evaporator
Sanitize
Evaporator
Clean
Condenser Coil
Check Ice
Quality
X X X
X S S
X S S S
X S S
X S S S
At start-up
X=End User
S=Service Company
Part Number: 040003628 Rev. 01 01/14/18 4-1
Maintenance Section 4
Cleaning the Condenser
Warning
Disconnect electric power to the ice machine
at the electric service switch before performing
maintenance on equipment.
AIR-COOLED CONDENSER
A dirty condenser restricts airflow, resulting in
excessively high operating temperatures. This reduces
ice production and shortens component life.
Clean the condenser at least every six months.
1. Remove plastic front grill by removing two Phillips
head screws. Clean grill openings before replacing.
2. Clean the outside of the condenser with a soft brush
or a vacuum with a brush attachment. Clean from
top to bottom, not side to side. Be careful not to
bend the condenser fins.
3. Shine a flashlight through the condenser to check
for dirt between the fins. If dirt remains:
A. Blow compressed air through the condenser
fins. Be careful not to bend the fan blades.
WATER-COOLED CONDENSER AND WATER
REGULATING VALVE
The water-cooled condenser and water-regulating valve
may require cleaning due to scale buildup.
Low ice production, high water consumption and high
operating temperatures and pressures all may be
symptoms of restrictions in the condenser water circuit.
Because the cleaning procedures require special pumps
and cleaning solutions, qualified maintenance or service
personnel must perform them.
B. If dirt or grease remains between fins, consult
your service representative.
Warning
The condenser fins are sharp. Use care when
cleaning them.
4-2 Part Number: 040003628 Rev. 01 01/14/18
Section 4 Maintenance
!
!
Interior Cleaning and Sanitizing
GENERAL
Clean and sanitize the ice machine every six months
for efficient operation. If the ice machine requires
more frequent cleaning 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
cleaning and sanitizing.
Caution
Use only approved Ice Machine Cleaner and
Sanitizer. Read and understand all labels printed on
bottles before use. Do not mix Ice Machine Cleaner
and Sanitizer solutions together.
Warning
Wear rubber gloves and safety goggles (and/or
face shield) when handling Ice Machine Cleaner or
Sanitizer.
CLEANING & SANITIZING PROCEDURE
Ice Machine Cleaner is used to remove lime scale or
other mineral deposits. Sanitizer is used to remove
algae or slime.
Mix 4 liters of water with 500 ml of cleaner in a plastic or
stainless container.
Cleaner Water
500 ml (16 oz) 4 l (1 gal)
Step 1 Set the toggle switch to the OFF position at
the end of a harvest cycle, after ice releases from the
evaporator. Or, set the switch to the OFF position and
allow the ice to melt off the evaporator.
Caution
Never use anything to force ice from the evaporator.
Damage may result.
Step 5 While components are soaking, use nylon
brush to scrub inside of ice bin. Scrub inside of door,
door track, bin, sump trough and evaporator moldings.
With clean water, rinse all of these areas thoroughly.
Step 6 Replace sump overflow tube and pour
remaining 2 liters of mixture into the water sump.
Replace all parts.
Step 7 To start a standard cleaning cycle, press the
toggle switch to WASH position and hold for 5 seconds.
Step 8 Wait until the cleaning cycle is complete
(approximately 13.5 minutes). Remove water curtain,
ice chute and overflow tube from the water sump. Allow
all water to drain from the sump. Replace drain plug.
Press the toggle switch to WASH position and hold for 5
seconds to start a rinsing cycle.
Step 9 Wait until the rinsing cycle is complete
(approximately 12 minutes). Remove water curtain, ice
chute, and water sump overflow tube. Drain water from
sump and replace tube.
Step 10 Mix 60 ml of sanitizer with 12 l of water in a
plastic or stainless steel container.
Sanitizer Water
60 ml (2 oz) 12 l (3 gal)
Step 11 Remove water curtain and ice chute as
described in Section 3, Component Identification &
Component Removal.
Step 12 Take all components to sink and, with 10 liters
sanitizer/water mixture, sanitize all components with a
soft nylon brush or cloth. Do not rinse components.
Step 13 Use brush or cloth to sanitize the inside of ice
bin. Scrub inside of door, door track, bin, water sump,
water distribution assembly and evaporator moldings.
Do not rinse.
Step 14 Replace sump drain overflow tube and transfer
remaining 2 liters of solution to the sump trough.
Replace all components.
Step 2 Remove all ice from the bin.
Step 3 Remove all parts as described in Section 3,
Component Identification & Component Removal.
Step 4 Take all components to sink and, with 2 liters
cleaner/water mixture, clean all components with a soft
nylon brush. Disassemble spray bar, remove nozzles
and inserts and soak for 5 minutes. For heavily scaled
parts, soak in solution for 15-20 minutes. Rinse all
components with clean water.
Part Number: 040003628 Rev. 01 01/14/18 4-3
Step 15 To start a standard sanitizing cycle, press the
toggle switch to WASH position and hold for 5 seconds.
Step 16 Wait until the cleaning cycle is complete
(approximately 13.5 minutes). Remove water curtain
and ice chute. Remove overflow tube from water sump
and allow all water to drain from sump. Replace drain
plug. Press the toggle switch to WASH position and hold
for 5 seconds to start a rinsing cycle.
Maintenance Section 4
!
!
Step 17 Wait until the rinsing cycle (25.5 minutes)
is complete, then place the toggle switch in the OFF
position. Remove water curtain, ice chute, and water
sump overflow tube. Drain water from sump and replace
tube.
Step 18 Replace all parts.
Step 19 Place toggle switch to ON position. Ice
machine will go into ice making cycle.
NOTE: To terminate a standard cleaning cycle, press
the toggle switch to WASH position and hold more than
30 seconds.
Caution
If the cleaner/sanitizer solution has been poured into
the water trough, then the standard cleaning cycle
must be completed. Don’t terminate the cleaning
cycle, or the ice machine will not purge the remaining
cleaner/sanitizer solution from the water trough.
Exterior Cleaning
Clean the area around the ice machine as often
as necessary to maintain cleanliness and efficient
operation.
Sponge any dust and dirt off the outside of the ice
machine with mild soap and water. Wipe dry with a
clean, soft cloth.
A commercial grade stainless steel cleaner and polish
may be used.
AIR-COOLED ICE MACHINES
1. Disconnect the electric power at the circuit breaker
or the electric service switch.
2. Turn off the water supply.
3. Drain the water from the water sump and water
pump by disconnecting the water pump tubing.
4. Disconnect and drain the incoming ice-making
water line and disconnect the tubing from the water
inlet valve outlet. Allow water to drain.
5. Blow compressed air in the drain opening and water
valve outlet hose, then reattach.
6. Make sure water is not trapped in any of the water
or drain lines.
WATER-COOLED ICE MACHINES
1. Perform steps 1-6 under “Air-Cooled Ice Machines.”
2. Disconnect the incoming water and drain lines from
the water-cooled condenser.
3. Insert a large screwdriver between the bottom
spring coils of the water regulating valve. Pry
upward to open the valve.
4. Hold the valve open and blow compressed air
through the condenser until water no longer exits.
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 0°C (32°F)
or below.
Caution
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.
4-4 Part Number: 040003628 Rev. 01 01/14/18
Pry Open the Water Regulating Valve
Section 5
Before Calling for Service
Checklist
If a problem arises during operation of your ice machine, follow the chart below before calling for service. Routine
adjustments and maintenance procedures are not covered by the warranty.
Problem Cause Correction
Ice machine will not run No power – breaker off, fuse blown,
unplugged
Toggle switch is not in ON position Place toggle switch in ON position.
The storage bin is full Remove enough ice from the bin and
Ice machine runs and no ice is produced No water to ice machine Correct water supply.
Water sump overflow tube out of position Reposition/install overflow tube.
Water sump thermistor or liquid line
thermistor faulty
Control board problem Call for service.
Freeze cycle long – low production Dirty condenser Clean condenser.
Water temperature too high Connect to a cold water supply. Verify
Refrigeration problem Call for service.
Shallow, incomplete or white ice cubes Ice machine is dirty Clean and sanitize the ice machine.
Water pressure supply incorrect Verify water pressure is correct.
Air temperature around ice machine is
too high
DIP switch incorrectly adjusted Adjust DIP switch.
Will not initiate a harvest cycle Liquid line thermistor faulty Replace the thermistor.
Control board problem Call for service.
Ice cubes do not release Ice machine is dirty Clean and sanitize the ice machine.
Low ambient around ice machine Move ice machine to warmer area.
DIP switch incorrectly adjusted (cubes
too large)
Restore power.
wait for 3-minute delay to expire.
Replace the thermistor.
check valves in faucets and other
equipment work properly.
Vent area or move ice machine.
Adjust DIP switch.
Part Number: 040003628 Rev. 01 01/14/18 5-1
Before Calling for Service Section 5
THIS PAGE INTENTIONALLY LEFT BLANK
5-2 Part Number: 040003628 Rev. 01 01/14/18
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Part Number: 040003628 Rev. 01 01/14/18
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