QM30 Series
Ice Machines
Installation,
Use and Care, Manual
Thank you for selecting a Manitowoc Ice Machine, the dependability leader in ice making equipment and
related products. With proper care and maintenance, your new Manitowoc Ice Machine will provide you with
many years of reliable and economical performance.
We reserve the right to make product improvements at any time.
Specifications and design are subject to change without notice.
Part Number000001772
10/06
Safety Notices
Procedural Notices
When using or servicing these Ice Machines, 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 ice machine.
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, and then proceed carefully.
CAUTION
Text in a Caution box alerts you to a situation in
which you could damage the ice machine. Be sure
to read the Caution statement, and then proceed
carefully.
CAUTION
Proper care and maintenance are essential for
maximum ice production and trouble-free operation
of your Manitowoc Ice Machine.
Read and understand this manual. It contains
valuable care and maintenance information. If you
encounter problems not covered by this manual,
feel free to contact Manitowoc Ice, Inc. We will be
happy to provide assistance.
When using or servicing these Ice Machines, be sure
to read the procedural notices in this manual. These
notices supply helpful and important information.
Throughout this manual, you will see the following
types of procedural notices:
Important
Important boxes serve two functions.
They call the operator’s attention to important
information.
They also provide the service technician with
information that may help perform a procedure
more efficiently. Disregarding this information may
slow down the work.
NOTE: Text set off as a Note provides you with
simple, but useful, extra information.
This manual covers the following model numbers:
Self-Contained Air-Cooled:
QM30A
QM30AE
Warning
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been,
misused, abused, neglected, damaged, or
altered/modified from that of original
manufactured specifications.
Table of Contents
Table of Contents
Section 1 - General Information
Model/Serial Number Location......................................................................................................................1-1
Owner Warranty Registration Card..............................................................................................................1-2
Warranty Coverage.........................................................................................................................................1-2
Section 2 - Installation Instructions
Dimensions........................................................................................................................................................2-1
Location of Ice Machine..................................................................................................................................2-2
Leveling the Ice Machine.................................................................................................................................2-2
Electrical Service..............................................................................................................................................2-3
Water Service/Drains.......................................................................................................................................2-5
Section 3 - Ice Machine Operation
Sequence of Operation.....................................................................................................................................3-1
Ice Thickness Adjustment...............................................................................................................................3-2
Section 4 - Maintenance
General..............................................................................................................................................................4-1
Cleaning and Sanitizing Procedure................................................................................................................4-1
Cleaning the Condenser ..................................................................................................................................4-2
Removal from Service/Winterization.............................................................................................................4-8
Section 5 - Before Calling for Service
Checklist............................................................................................................................................................5-1
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Table of Contents
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ii
Section 1 General Information
Section 1
General Information
Model/Serial Number Location
Record the model and serial number of your ice
machine in the space provided below. These numbers
are required when requesting information from your
Manitowoc distributor, service representative, or the
factory.
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.
MODEL AND
SERIAL NUMBER
MODEL AND
SERIAL NUMBER
sv1702
Model/Serial Number Location
MODEL NUMBER: ________________________ SERIAL NUMBER: _________________________
1-1
General Information Section 1
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.
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 three (3) years from the date of
original installation.
LABOR
Labor required to repair or replace defective
components is covered for three (3) years 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 the Owner/Operator Use and Care
Guide.
2. Repairs due to unauthorized modifications to the
ice machine or the use of non-standard parts
without prior written approval 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 the ice machine 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 the Installation Manual and the
Owner/Operator Use and Care Guide.
AUTHORIZED WARRANTY SERVICE
To comply with the provisions of the warranty, a
refrigeration service company, qualified and
authorized by a Manitowoc distributor, or a
Contracted Service Representative must perform the
warranty repair.
NOTE: If the dealer the ice machine was purchased
from is not authorized to perform warranty service,
contact the Manitowoc distributor or Manitowoc
Ice, Inc. for the name of the nearest authorized
service representative.
1-2
Service Calls
If you have followed the procedures listed in
Section 5 of this manual, and the ice machine still
does not perform properly, call your authorized
service company.
Section 1 General Information
Residential Warranty Coverage
WHAT DOES THIS LIMITED WARRANTY COVER
Subject to the exclusions and limitations below, Manitowoc
Ice, Inc. (“Manitowoc”) warrants to the original consumer that
any new ice machine manufactured by Manitowoc (the
“Product”) shall be free of defects in material or workmanship
for the warranty period outlined below under normal use and
maintenance, and upon proper installation and start-up in
accordance with the instruction manual supplied with the
Product.
HOW LONG DOES THIS LIMITED WARRANTY
LAST?
Ice Machine - Twelve (12) months from the sale date
WHO IS COVERED BY THIS LIMITED WARRANTY
This limited warranty only applies to the original consumer of
the Product and is not transferable.
WHAT ARE MANITOWOC ICE’S OBLIGATIONS
UNDER THIS LIMITED WARRANTY?
If a defect arises and Manitowoc receives a valid warranty
claim prior to the expiration of the warranty period,
Manitowoc shall, at its option: (1) repair the Product at
Manitowoc’s cost, including standard straight time labor
charges, (2) replace the Product with one that is new or at least
as functionally equivalent as the original, or (3) refund the
purchase price for the Product. Replacement parts are
warranted for 90 days or the balance of the original warranty
period, whichever is longer. The foregoing constitutes
Manitowoc’s sole obligation and the consumer’s exclusive
remedy for any breach of this limited warranty. Manitowoc’s
liability under this limited warranty is limited to the purchase
price of Product. Additional expenses including, without
limitation, service travel time, overtime or premium labor
charges, accessing or removing the Product, or shipping are
the responsibility of the consumer.
HOW TO OBTAIN WARRANTY SERVICE
To obtain warranty service or information regarding your
Product, please contact us at:
MANITOWOC ICE, INC.
2110 So. 26
P.O. Box 1720,
Manitowoc, WI 54221-1720
Telephone: 920-682-0161 Fax: 920-683-7585
www.manitowocice.com
th
St.,
?
?
WHAT IS NOT COVERED
This limited warranty does not cover, and you are solely
responsible for the costs of: (1) periodic or routine
maintenance, (2) repair or replacement of the Product or parts
due to normal wear and tear, (3) defects or damage to the
Product or parts resulting from misuse, abuse, neglect, or
accidents, (4) defects or damage to the Product or parts
resulting from improper or unauthorized alterations,
modifications, or changes; and (5) defects or damage to any
Product that has not been installed and/or maintained in
accordance with the instruction manual or technical
instructions provided by Manitowoc. To the extent that
warranty exclusions are not permitted under some state laws,
these exclusions may not apply to you.
EXCEPT AS STATED IN THE FOLLOWING SENTENCE,
THIS LIMITED WARRANTY IS THE SOLE AND
EXCLUSIVE WARRANTY OF MANITOWOC WITH
REGARD TO THE PRODUCT. ALL IMPLIED
WARRANTIES ARE STRICTLY LIMITED TO THE
DURATION OF THE LIMITED WARRANTY
APPLICABLE TO THE PRODUCTS AS STATED ABOVE,
INCLUDING BUT NOT LIMITED TO, ANY WARRANTY
OF MERCHANTABILITY OR OF FITNESS FOR A
PARTICULAR PURPOSE. Some states do not allow
limitations on how long an implied warranty lasts, so the
above limitation may not apply to you.
IN NO EVENT SHALL MANITOWOC OR ANY OF ITS
AFFILIATES BE LIABLE TO THE CONSUMER OR ANY
OTHER PERSON FOR ANY INCIDENTAL,
CONSEQUENTIAL OR SPECIAL DAMAGES OF ANY
KIND (INCLUDING, WITHOUT LIMITATION, LOSS OF
PROFITS, REVENUE OR BUSINESS) ARISING FROM OR
IN ANY MANNER CONNECTED WITH THE PRODUCT,
ANY BREACH OF THIS LIMITED WARRANTY, OR ANY
OTHER CAUSE WHATSOEVER, WHETHER BASED ON
CONTRACT, TORT OR ANY OTHER THEORY OF
LIABILITY. Some states do not allow the exclusion or
limitation of incidental or consequential damages, so the
above limitation or exclusion may not apply to you.
HOW STATE LAW APPLIES
This limited warranty gives you specific legal rights, and you
may also have rights that vary from state to state or from one
jurisdiction to another.
REGISTRATION CARD
To secure prompt and continuing warranty service, this
warranty registration card must be completed and sent to
Manitowoc within thirty (30) days from the sale date.
Complete the following registration card and send it to
Manitowoc at the address shown.
?
1-3
General Information Section 1
INTENTIONALLY LEFT BLANK
1-4
Section 2 Installation Instructions
(
)
(
)
Section 2
Installation Instructions
Legs
15.24 cm
(6.00”)
sv1679b
Levelers
International
ONLY
7.32 cm
(2.88”)
15.73 cm
6.19”
3.33 cm
(1.31”)
20.80 cm
(8.19”)
15.09 cm
(5.94”)
7.24 cm
(2.85”)
9.53 cm
(3.75”)
8.51 cm
sv1678b
3.35”
56.74 cm
(22.34”)
Ice Making
Water/Bin Drain
Ice Making
Water Inlet
Electrical Inlet
sv1678c
76.20 cm
(30.00”)
50.00 cm
(19.69”)
2-1
Installation Instructions Section 2
Location of Ice Machine
Leveling the 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 45°C (113°F).
• The location must not be near heat-generating
equipment or in direct sunlight.
• The counter top (or other resting surface) must be
able to support 425 kg per square meter (0.6 lb.
per square inch).
• The location must allow enough clearance for
water, drain, and electrical connections in the
rear of the ice machine.
• The location must not obstruct air flow to any
portion of the front of the ice machine.
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. See
“Removal from Service/Winterization” on page 4-
8.
Self-Contained Air-Cooled
Top/Sides 203 mm (5”)*
Back 127 mm (5”)*
NOTE: The ice machine may be built into a cabinet.
There is no minimum clearance requirement for the
top or the left and right sides of the ice machine
Ice Machine Heat of Rejection
Series Heat of Rejection*
Ice Machine Air Conditioning** Peak
QM30 1600 2350
* B.T.U./Hour
** Because the heat of rejection varies during the ice making cycle, the
figure shown is an average.
Ice machines, like other refrigeration equipment,
reject heat through the condenser. It is helpful to
know the amount of heat rejected by the ice machine
when sizing air conditioning equipment where selfcontained air-cooled ice machines are installed.
After moving the ice machine into the installation
location, it must be leveled for proper operation.
Follow these steps to level the ice machine:
1. Check the level of the ice machine from front to
back and from side to side.
sv1704
Checking for Level
2. If the ice machine is not level, adjust the leveling
glides or legs on each corner of the base of the ice
machine as necessary.
3. Check the level of the ice machine after each
adjustment.
4. Repeat steps 2 and 3 until the ice machine is level
from front to back and from side to side.
Levelers
International
ONLY
sv1705
Legs
sv1679b
2-2
Section 2 Installation Instructions
Electrical Service
WARNING
All wiring must conform to local, state and national
codes.
Ice Machine Voltage Phase Air-Cooled
Model Cycle Electrical Rating
QM30 230/50/1 .6 KW / 2.6 Amps
QM30 115/60/1 .6 KW/ 5.3 Amps
VOLTAGE
The maximum allowable voltage variation is ± 10%
of the rated voltage at ice machine start-up (when the
electrical load is highest).
WARNING
The ice machine must be grounded in accordance
with national and local electrical codes.
WARNING
Never use an extension cord. If an outlet is not
within reach of the ice machine’s power cord, have
a proper amperage outlet wired closer to the ice
machine.
FUSE/CIRCUIT BREAKER
A separate fuse/circuit breaker must be provided for
each ice machine.
NOTE: A means of disconnect must be provided for
field wiring.
ELECTRICAL RATING
The electrical rating is used to help select the wire
size of the electrical supply. The wire size (or gauge)
also depends on location, materials used, length of
run, etc., so it must be determined by a qualified
electrician.
FOR UNITED KINGDOM ONLY
As the colours of the wires in the mains lead of the
appliance may not correspond with the coloured markings
identifying the terminals in your plug, proceed as follows:
• The wire which is coloured green and yellow
connected to the terminal in the plug which is marked
with the letter E or by the earth symbol , or
coloured green or green and yellow.
• The wire coloured blue
terminal which is marked with the letter N or coloured
black.
• The wire which is coloured brown
to the terminal which is marked with the letter L or
coloured red.
must be connected to the
must be connected
must be
2-3
Installation Instructions Section 2
THIS PAGE INTENTIONALLY LEFT BLANK
2-4
Section 2 Installation Instructions
Water Service/Drains
WATER SUPPLY
Local water conditions may require treatment of the
water to inhibit scale formation, filter sediment, and
remove chlorine odor and taste.
Important
If you are installing a Manitowoc water filter
system, refer to the Installation Instructions
supplied with the filter system for ice making water
inlet connections.
Follow these guidelines to install water inlet lines:
• Connect to potable water supply only.
• 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.)
• If water pressure exceeds the maximum
recommended pressure, obtain a water pressure
regulator from your Manitowoc distributor.
• Install a water shut-off valve for the ice making
water lines.
• Insulate water lines to prevent condensation.
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 2.5 cm (1 inch) drop per
1 meter (40 inches) of run, and must not create
traps.
• The floor drain must be large enough to
accommodate drainage from all drains.
• Insulate the bin drain line to prevent
condensation.
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS
CAUTION
Plumbing must conform to state and local codes.
Water
Temperature
Ice Making
Water Inlet
Ice Making/Bin
Water Drain
1
Min. = Minimum
2
Max. = Maximum
3
A 3/4” by 11-1/2 threads per inch to 14 threads per inch adapter is factory installed. Remove this adapter if 11-1/2 threads per inch
connection is desired.
10°C (50°F) Min.1
30°C (86°F) Max.
--- ---
2.4 bar (35 psi) Min.
2
6.2 bar (90 psi) Max.
Water
Pressure
Ice Machine
Connection
1
2
3/4” male hose
connection3
1.59 cm (5/8”)
inside diameter
flexible hose
Tubing Size Up to Ice
Machine Fitting
0.95 cm (3/8”)
minimum inside
diameter
1.59 cm (5/8”)
minimum inside
diameter
2-5
Installation Instructions Section 2
Typical Water Supply and Drain Line Sizing and Connections
OVERFLOW
TUBE
DRAIN
HOLE
sv1680b
ICE MAKING/BIN WATER DRAIN TUBING
1.59 cm (5/8”) MINIMUM INSIDE DIAMETER
Important
Over flow tube must be securely
installed during initial set up.
ICE MAKING WATER INLET TUBING
0.95 cm (3/8”) MINIMUM INSIDE DIAMETER
WATER SHUT OFF VALVES
2-6
Section 3 Ice Machine Operation
Section 3
Ice Machine Operation
Sequence of Operation
Control Board Relays
Ice Making
Sequence of
Operation
Start-Up1
1. Water Purge
2. Refrigeration
System Start-Up
3. Freeze Cycle On Off On
4. Harvest Cycle On On Off
5. Auto Shut-Off Off Off Off
1
Initial Start-Up or Start-Up After Automatic Shut-Off
1
Compressor
Off On Off
On On Off 5 Seconds
Hot Gas Valve
Water Fill Valve
2
3
Water Pump
Fan Motor
Length of
“ON” Time
2.9 Minutes
(175 Seconds)
Automatically
determined
Automatically
determined
Until bin thermostat
re-closes
INITIAL START-UP OR START-UP AFTER
AUTOMATIC SHUT-OFF
1. Water Purge
The water fill valve and the hot gas valve are
energized for 2.9 minutes (175 seconds). This
ensures that the ice making cycle starts with fresh
water, and that the refrigerant pressures are
equalized prior to refrigeration system start-up.
2. Refrigeration System Start-Up
The compressor starts 2.9 minutes (175 seconds)
after the water fill valve and hot gas valve are
energized. (The water fill valve and hot gas valve
remain energized for 5 seconds during compressor
start-up, and then shut off.) The compressor remains
on throughout the entire freeze and harvest cycles.
3. Freeze Cycle
The condenser fan motor and water pump are
energized and remain on throughout the entire
freeze cycle. An even flow of water is directed
across the evaporator and into each cube cell, where
it freezes.
The control system automatically determines the
length of the freeze cycle by monitoring the
temperature of the refrigeration system liquid line.
4. Harvest Cycle
The condenser fan motor and water pump deenergize. The water fill valve energizes to purge the
water in the water trough. The hot gas valve also
energizes at the beginning of the harvest cycle to
divert hot refrigerant gas into the evaporator. The
hot refrigerant gas warms the evaporator, causing
the cubes to slide, as a sheet, off the evaporator and
into the ice storage bin.
The control system automatically determines the
length of the harvest cycle, based on the
temperature of the refrigeration system liquid line at
the end of the freeze cycle. At the end of the harvest
cycle, the ice machine returns to another freeze
cycle (step 3, above).
5. Automatic Shut-Off
The level of ice in the ice storage bin controls the
ice machine shut-off. When the bin is full, ice cubes
contact the bin thermostat bulb holder, which cools
down and opens to stop the ice machine. The ice
machine remains off until enough ice has been
removed from the bin. This causes the thermostat
bulb holder to warm and close, restarting the ice
machine. When the ice machine restarts, it returns
to the start-up sequence (steps 1 and 2, above).
3-1
Ice Machine Operation Section 3
Ice Thickness Adjustment
QM-30 dice ice cube formation is slightly different
from our previous models. Manitowoc ice
machines have a unique cube shape. It is normal to
have a dimple in the ice cube (a concave indentation
in the cube). Ice cubes from the QM-30 may appear
to have a slightly larger dimple than other
Manitowoc dice cube machines. Therefore, cube
size for the QM-30 is determined by measuring the
slab weight (the combined weight of all cubes from
one harvest cycle). To determine proper slab
weight follow the instructions listed below.
ICE BRIDGE SHOULD BE 1.5 MM
TO 3.2 MM THICKNESS
A DIMPLE IN EACH
CUBE CELL IS
NORMAL
sv1709
Correct Ice Bridge Thickness
1. Ensure the air filter, front, and back panels are
installed properly and close the bin door.
4. Remove the air filter.
5. Remove the two screws holding the front panel
in place and remove the front cover.
6. Locate the ice thickness control dial on the
control board (see below). Turn the dial
clockwise for a thicker cube or counter
clockwise for a thinner cube.
ICE THICKNESS
ADJUSTMENT DIAL
DIAL IS FACTORY
SET TO ZERO
2. During the third harvest cycle open the bin door
and catch the entire slab of ice.
3. Weigh the ice slab. The combined weight of all
cubes from one harvest should weigh between
200 - 270g (7 - 9-oz). If the slab weight is
within this range, the ice machine is working
properly and no further action is needed. If the
slab weight is not within this range or you desire
a slightly thicker or thinner cube, continue to
step four.
WARNING
Do not touch electrical wires. Disconnect power to
the ice machine before making any ice thickness
adjustments.
sv1710
Ice Thickness Adjustment Dial
7. Assure all of the panels and air filter are
reinstalled properly and the bin door is closed.
Repeat steps one through three.
After completing the procedure above, if you are
unable to obtain a sheet of ice weighing 200 - 270g
(7 - 9-oz) contact the Manitowoc Service
Department for further assistance.
3-2
Section 4 Maintenance
Section 4
Maintenance
Interior Cleaning 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.
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.
The ice machine must be taken apart for cleaning and
sanitizing.
CAUTION
Use only Manitowoc approved Ice Machine Cleaner (part
number 94-0546-3) and Sanitizer (part number 94-05 65-3). 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.
CLEANING AND SANITIZING PROCEDURE
CAUTION
Do not mix Ice Machine Cleaner 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 Cleaner or Sanitizer.
Ice machine cleaner is used to remove lime scale and
mineral deposits. Ice machine sanitizer disinfects and
removes algae and slime.
Step 1 Set the toggle switch to the OFF position after
ice falls from the evaporator at the end of a Harvest
cycle. 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 ma y r esult.
Step 2 Remove all ice from the bin.
Step 3 To start a cleaning cycle, move the toggle
switch to the WASH position.
4-1
Maintenance
Step 4 Wait until water flows over the evaporator
(about three minutes) then add the proper amount of
Manitowoc Ice Machine Cleaner to the water trough.
Model Amount of Cleaner
QM30 45 ml (1.5 ounces)
Step 5 Wait until the clean cycle is complete
(approximately 45 minutes) then place the toggle
switch in the OFF position, disconnect power and
water supplies to the ice machine.
Section 4
Step 6: Remove parts for cleaning.
A. Remove the Bin Door
• Grasp the rear of the bin door and pull bin door
forward approximately 5”.
•
Slide bin door to the rear while applying upward
pressure (The rear door pins will ride up into the
track slot and slide backward to the stop tab).
•
While applying pressure against the bin door pull
down on the rear of each bin door track until the
door pins clear the stop tabs.
WARNING
Disconnect electric power to the ice machine at the electric
switch box before proceeding.
•
Slide the rear door pins off the end and then
below the door track. Slide bin door forward
allowing the back of the door to lower into the
bin. Continue forward with the bin door until the
front pins bottom out in the track.
•
Lift right side of door until the front pins clear the
track, then remove door from bin.
PRESS DOWN
TO RELEASE
DOOR
STOP TAB
TRACK
SLOT
SLIDE
DOOR
FORWARD
4-2
Section 4 Maintenance
Parts Removal Overview
WATER
DISTRIBUTION
TUBE
WATER PUMP AND
BRACKET ASSEMBLY
WATER PUMP
OUTLET HOSE
OVERFLOW
TUBE
EVAPORATOR ASSEMBLY
(REMAINS IN PLACE)
WATER
TROUGH
4-3
Maintenance
B. Remove the Overflow Tube
• To remove the tube, lift it up while using a slight
back and forth motion to loosen it from the drain
hole.
When installing the tube, be sure it is completely
inserted into the drain hole to prevent water leakage
during normal operation.
Section 4
D. Remove the Water Pump
• Disconnect the water pump power cord.
•
Disconnect the water hose from the pump outlet.
•
Loosen the screws that hold the water pump in
place.
•
Lift the water pump and bracket assembly up and
off the screws.
OVERFLOW
TUBE
DRAIN
HOLE
sv1684b
Removing the Overflow Tube
C. Remove the Vinyl Hose
• Disconnect the water pump discharge hose from
the distribution tube and water pump.
POWER CORD
OUTLET
SCREWS
WATER PUMP
sv1713
Removing the Water Pump
E. Remove the Water Trough
• Remove the screws holding the water trough to
the walls of the cabinet.
4-4
Section 4 Maintenance
Step 7 Mix a solution of cleaner and warm water.
Depending on 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
clean all parts.
Solution Type Water Mixed with
Cleaner 4L. (1 gal) 500 ml (16 oz) cleaner
Step 11 Use 1/2 of the sanitizer/water solution to
sanitize all removed components. Use a cloth or
sponge 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 12 Use 1/2 of the sanitizer/water solution to
sanitize all foodzone surfaces of the ice machine and
Step 8 Use ½ of the cleaner/water solution to clean
all components. The cleaner solution will foam when
it contacts lime scale and mineral deposits; once the
foaming stops use a soft bristle brush, sponge or cloth
(not a wire brush) to carefully clean the parts. Soak
the parts for 5 minutes (15 – 20 minutes for heavily
scaled parts). Rinse all components with clean water.
Step 9 While components are soaking, use ½ of the
bin. Use a cloth or sponge to liberally apply the
solution. When sanitizing, pay particular attention to
the following areas:
• Evaporator plastic parts - including top, bottom
and sides
• Bin bottom, sides and top
Do not rinse the sanitized areas.
Step 13 Replace all removed components.
cleaner/water solution to clean all foodzone surfaces
of the ice machine and bin. Use a nylon brush or
cloth to thoroughly clean the following ice machine
areas:
• Evaporator plastic parts – including top, bottom
and sides
•
Bin bottom, sides and top
Step 14 Reapply power and water to the ice machine
and place the toggle switch in the WASH position.
Step 15 Add the proper amount of Manitowoc Ice
Machine Sanitizer to the water trough.
Model Amount of Sanitizer
QM30 45 ml (1.5 oz)
Rinse all areas thoroughly with clean water.
Step 10 Mix a solution of sanitizer and warm water.
Solution Type Water Mixed With
Sanitizer 23L. (6 gal) 120ml (4 oz) s ani t i zer
Step16 Wait until the sanitize cycle is complete
(approximately 45 minutes) then place the toggle
switch in the OFF position, disconnect power and
water supplies to the ice machine.
4-5
Maintenance
WARNING
Disconnect electric power to the ice machine at the electric
switch box before proceeding.
Step 17 Repeat step 6 to remove parts for hand
sanitizing.
Step 18 Mix a solution of sanitizer and warm water.
Solution Type Water Mixed With
Sanitizer 23L. (6 gal) 120 ml (4 oz) sanitizer
Step 19 Use 1/2 of the sanitizer/water solution to
sanitize all removed components. Use a cloth or
sponge 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 20 Use 1/2 of the sanitizer/water solution to
sanitize all foodzone surfaces of the ice machine and
bin. Use a cloth or sponge to liberally apply the
solution. When sanitizing, pay particular attention to
the following areas:
Section 4
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.
Treat all exterior stainless steel surfaces with a
commercial grade stainless steel cleaner/polish.
ICE MACHINE INSPECTION
Check all water fittings and lines for leaks. Also,
make sure the refrigeration tubing is not rubbing or
vibrating against other tubing, panels, etc.
Do not put anything (boxes, etc.) in front of the ice
machine. There must be adequate airflow through
and around the ice machine to maximize ice
production and ensure long component life.
• Evaporator plastic parts - including top, bottom
and sides
•
Bin bottom, sides and top
Do not rinse the sanitized areas.
Step 21 Replace all removed components.
Step 22 Reapply power and water to the ice machine
and place the toggle switch in the ICE position.
4-6
Section 4 Maintenance
CLEANING THE CONDENSER
WARNING
Disconnect electric power to the ice machine at the electric
service switch before cleaning the condenser.
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. Follow
the steps below.
WARNING
The condenser fins are sharp. Use care when cleaning them.
1. The washable aluminum filter on self-contained
ice machines is designed to catch dust, dirt, lint
and grease. This helps keep the condenser clean.
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.
2. Shine a flashlight through the condenser to check
for dirt between the fins. If dirt remains: Blow
compressed air through the condenser fins from
the inside. Be careful not to bend the fan blades.
3. Use a commercial condenser coil cleaner. Follow
the directions and cautions supplied with the
cleaner.
4. Straighten any bent condenser fins with a fin
comb.
5. Carefully wipe off the fan blades and motor with
a soft cloth. Do not bend the fan blades. If the fan
blades are excessively dirty, wash with warm,
soapy water and rinse thoroughly.
Clean the filter with a mild soap and water
solution.
If you are cleaning the condenser fan blades with water, cover
the fan motor to prevent water damage.
CAUTION
REMOVE THE
FILTER
sv1681a
Removing the Filter
4-7
Maintenance Section 4
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.
1. Disconnect the electric power at the circuit
breaker or the electric service switch.
2. Turn off the water supply.
3. Remove the water from the water trough.
4. Disconnect the drain and the incoming ice-
making water line at the rear of the ice machine.
5. Make sure no water is trapped inside the ice
machine incoming water lines, drain lines,
distribution tubes, etc. Blow compressed air
through the line if necessary.
4-8
Section 5 Before Calling for Service
Section 5
Before Calling for Service
Checklist
If a problem arises during operation of your ice machine, follow the checklist below before calling for service.
Problem Possible Cause To Correct
Ice machine does not
operate.
Toggle switch set improperly. Move the toggle switch to the ON
Low air temperature around ice
Ice machine does not release
ice or is slow to harvest.
Ice machine is not level. Level the ice machine.
Low air temperature around ice
Ice quality is poor
(soft or not clear).
Water filtration is poor. Replace the filter.
Ice machine is dirty. Clean and sanitize the ice machine.
Water inlet valve filter screen is dirty. Remove the water inlet valve and
Water softener is working improperly
No electrical power to the ice
machine.
machine.
Ice machine is dirty. Clean and sanitize the ice machine.
machine.
Poor incoming water quality. Contact a qualified service
(if applicable).
Replace the fuse/reset the
breaker/turn on the main switch.
position.
Air temperature must be at least
10°C (50°F).
See pages 4-4.
See page 2-2.
Air temperature must be at least
10°C (50°F).
company to test the quality of the
incoming water and make
appropriate filter recommendations.
See pages 4-4.
clean the filter screen.
See page 4-6.
Repair the water softener.
Continued on next page...
5-1
Before Calling for Service Section 5
Problem Possible Cause To Correct
Ice machine produces
shallow or incomplete cubes,
or the ice fill pattern on the
evaporator is incomplete.
Water inlet valve filter screen is dirty. Remove the water inlet valve and
Water filtration is poor. Replace the filter.
Hot incoming water. Connect the ice machine to a cold
Ice thickness adjustment dial is not set
Incorrect incoming water pressure. Water pressure must be 240-6 20 kPA
Ice machine is not level. Level the ice machine.
Low ice capacity. Water inlet valve filter screen is dirty. Remove the water inlet valve and
Incoming water supply is shut off. Open the water service valve.
The air filter is dirty. Clean the air filter. See page 4-2.
The condenser is dirty. Clean the condenser. See page 4-2.
Inadequate airflow at the front of the
Ice thickness adjustment dial is not set
Water level is low. Be sure the overflow tube is fully
seated to prevent water leakage.
See page 4-5.
clean the filter screen.
See page 4-6.
water supply. See page 2-5.
Adjust the ice thickness adjustment
properly.
ice machine.
properly.
dial. See page 3-2.
(34.8 - 89.9 psi).
See page 2-2.
clean the filter screen.
See page 4-6.
Remove items blocking airflow at
the front of the ice machine.
Adjust the ice thickness adjustment
dial. See page 3-2.
5-2
We reserve the right to make product
improvements at any time.
Specifications and design are subject
to change without notice.
MANITOWOC ICE, INC.
2110 South 26th Street P.O. Box 1720
Manitowoc, WI 54221-1720 USA
Phone: (920) 682-0161
Service Fax: (920) 683-7585
Web Site - www.manitowocice.com
©2006 Manitowoc Ice, Inc.
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