Manitowoc Ice QM30AE Owner’s Manual
UnderCounter Ice Machines
QM30 Models
Installation, Operation and Maintenance Manual
This manual is updated as new information and models are released. Visit our website for the latest manual.
Part Number: 040001359 5/10
Section 1
General Information
Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Section 2
Installation Instructions
Location of Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Ice Machine Heat of Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Leveling the Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Water Service/Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table of Contents
Bin Caster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Arctic Pure Water Filter System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Manitowoc Cleaner and Sanitizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Fuse/Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Cord Strain Relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Terminal Block Wire Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Water Supply and Drain Line Sizing/Connections . . . . . . . . . . . . . . . . . . . . . . . 7
Section 3
Operation
Section 4
Maintenance
Section 5
Customer Support
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Initial Start-Up or Start-Up After Automatic Shut-Off . . . . . . . . . . . . . . . . . . . . . 8
Ice Thickness Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Interior Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cleaning and Sanitizing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Exterior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Ice Machine Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cleaning the Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Removal from Service/Winterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Commercial Ice Machine Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Residential Ice Machine Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2 Part Number 00000xxxx 05/10
Section 1
!
Warning
General Information
Model Numbers
This manual covers the following models:
Self-Contained
Air-Cooled
QM30A
PERSONAL INJURY POTENTIAL
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.
Accessories
Contact your Manitowoc distributor for these optional
accessories:
BIN CASTER
Replaces standard legs.
ARCTIC PURE WATER FILTER SYSTEM
Engineered specifically for Manitowoc ice machines,
Arctic Pure water filters are an efficient, dependable, and
affordable method of inhibiting scale formation, filtering
sediment, and removing chlorine taste and odor.
MANITOWOC CLEANER AND SANITIZER
Manitowoc Ice Machine Cleaner and Sanitizer are
available in convenient 16 oz. (473 ml) and 1 g al (3.7 8 l)
bottles. These are the only cleaner and sanitizer
approved for use with Manitowoc products.
Cleaner Part Number Sanitizer Part number
16oz 94-0456-3 16oz 94-0565-3
1 Gallon 94-0580-3 1 Gallon 94-0581-3
NOTE: The Manitowoc Automatic Cleaning System
(AUCS®) accessory cannot be used with QM30 ice
machines.
QM30 ice machines do not have a water curtain
covering the evaporator. The ice damper performs the
functions of the water curtain see Section 3 for details.
Part Number 00000xxxx 05/10 3
Section 2
!
Caution
Installation Instructions
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 40°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 ic e
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
requirements.
Ice Machine Heat of Rejection
Series
Ice Machine
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 self-contained aircooled ice machines are installed.
Air Conditioning** Peak
Heat of Rejection*
Leveling the Ice Machine
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.
2. If the ice machine is not level, adjust the leveling
glides on each corner of the base of the ice machine
as necessary.
Self-Contained Air-Cooled
Top/Sides 5" (127 mm)*
Back 5" (127 mm)*
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.
The ice machine must be protected if it will be
subjected to temperatures below 32°F (0°C).
Failure caused by exposure to freezing
temperatures is not covered by the warranty. See
“Removal from Service/Winterization” Section 4.
Leveling Glide
3. Check the level of the ice machine after each
adjustment of the leveling glides.
4. Repeat steps 2 and 3 until the ice machine is level
from front to back and from side to side.
4 Part Number 00000xxxx 05/10
Section 2 Installation Instructions
!
Warning
! Warning
!
Warning
Electrical Service
All wiring must conform to local, state and national
codes.
Voltage Phase Electrical Rating
230/50/1 0.6kW
230/60/1 0.6kW
115/60/1 0.6kW
VOLTAGE
The maximum allowable voltage variation is ± 10% of
the rated voltage on the ice machine model/serial
number plate at start-up (when the electrical load is
highest).
The ice machine must be grounded in accordance
with national and local electrical codes.
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 disconnect means 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.
Part Number 00000xxxx 05/10 5
Installation Instructions Section 2
RETAINING NUT
(BEHIND THE
PANEL)
CORD
HOLDER
ELECTRICAL
CORD
COMPRESSION
NUT
! Warning
TERMINAL
BLOCK
L1
N
GND
ELECTRICAL
CORD
ELECTRICAL CORD STRAIN RELIEF
To prevent strain at the electrical connection inside the
ice machine, an electrical cord strain relief device must
be installed on the rear panel of the ice machine.
1. Disassemble the strain relief device into its three
components.
2. Install the cord ho l de r th ro ugh th e op e nin g in th e
lower right corner of the rear panel of the ice
machine.
TERMINAL BLOCK WIRE CONNECTION
Always disconnect power to the ice machine before
working on electrical circuitry.
After the electrical cord is installed in the strain relief
device, the cord must be connected to the terminal block
to supply power to the ice machine.
1. Remove two Phillips head screws to remove the
lower panel from the front of the ice machine.
2. Carefully reach into the ice machine and pull the
electrical cord forward to the terminal block.
3. Strip away enough insulation from the electrical cord
to allow for good electrical connections at the
terminal block.
3. Hand-t igh te n th e re taining nut on to th e co rd holder
4. Slide the compression nut over the electrical cord.
5. Feed about 1.5 m (5 ft.) of electrical cord through the
6. Hand-tighten the compression nut onto the cord
6
Strain Relief Installation
from inside the ice machine rear panel.
cord holder. (The extra cord will allow the rear panel
to be removed for future service.)
holder.
Terminal Block Connections
4. Open the screw terminals on the terminal block.
5. Connect each wire in the electrical cord to the
appropriate screw terminal.
6. Carefully tighten the screws over the wire.
7. Tug lightly on each wire to be sure the connections
are secure.
Part Number 00000xxxx 05/10
Section 2 Installation Instructions
Important
Important
!
Caution
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.
• Install a water shut-off valve for both the ice making
and condenser water lines (if applicable).
• Insulate water lines to prevent condensation.
If you are installing a Manitowoc Tri-Liminator
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
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 drop per 1 meter of
faucets, dishwashers, etc.)
• If water pressure exceeds the maximum
• The floor drain must be large enough to
recommended pressure, obtain a water pressure
regulator from your Manitowoc distributor.
• Insulate the bin drain line to prevent condensation.
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS
Plumbing must conform to state and local codes.
The water inlet line is connected to the water
valve. This valve is located just behind the front
panel of the ice machine.
run (1.5 inch per 5 feet), and must not create traps.
accommodate drainage from all drains.
Water Temperature Water Pressure Ice Machine Fitting
1
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.
Part Number 00000xxxx 05/10 7
10°C (50°F) Min.
30°C (86°F) Max.
—— ——
240 kPA (34.8 psi) Min.
2
620 kPA (89.9 psi) Max.
1
2
3/4" male hose
connection
1.59 cm (5/8") inside
diameter flexible hose
3
Tubing Size Up to Ice
Machine Fitting
0.95 cm (3/8") minimum
inside diameter
1.59 cm (5/8") minimum
inside diameter
Section 3
Operation
Sequence of Operation
Control Board Relays
Ice Making Sequence
of Operation
Start-Up*
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
*Initial Start-Up or Start-Up After Automatic Shut-Off
1
Compressor
Water Fill Valve
OFF ON ON
ON ON OFF 5 Seconds
2
Hot Gas Valve
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 ener gized
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 de-energize.
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.
5. Automatic Shut-off
The ice machine shut-off is controlled by the level of ice
in the ice storage bin. 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 an d
close, restarting the ice machine. When the ice machine
restarts, it returns to the start-up sequence.
8 Part Number 00000xxxx 05/10
Section 3 Operation
! Warning
ICE BRIDGE SHOULD BE 1.5 MM
TO 3.2 MM THICKNESS
A DIMPLE IN
EACH CUBE
CELL IS
NORMAL
ICE THICKNESS
ADJUSTMENT
DIAL
DIAL IS FACTOR Y
SET TO ZERO
Ice Thickness Adjustment
QM30 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 QM30 may appear to have a slightly larger
dimple than other Manitowoc dice cube machines.
Therefore, cube size for the QM30 is determined by
measuring the slab weight (the combined weight of all
cubes from one harvest cycle). To dete rmine proper slab
weight follow the instructions listed below.
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.
Correct Ice Bridge Thickness
1. Ensure the air filter, front, and back panels are
installed properly and close the bin door.
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.
Do not touch electrical wires. Disconnect power to
the ice machine before making any ice thickness
adjustments.
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.
Part Number 00000xxxx 05/10 9
Section 4
!
Caution
!
Caution
! Warning
!
Caution
!
Warning
DRAIN
HOLE
OVERFLOW
TUBE
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.
The ice machine must be taken apart for cleaning and
sanitizing.
Use only Manitowoc approved Ice Machine Cleaner
(part number 94-0546-3) and Sanitizer (part
number 94-0565-3). 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
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.
Step 3 T o st art a cleaning cycle, move the toggle switch
to the WASH position.
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
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.
Disconnect electric power to the ice machine at the
electric switch box before proceeding.
Step 6 Remove parts for cleaning.
A. 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.
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.
Never use anything to force ice from the evaporator.
Damage may result.
Step 2 Remove all ice from the bin.
Removing the Overflow Tube
10 Part Number 00000xxxx 05/10
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