Marine
Q 800
Ice Machine
Installation and
Owner/Operator
Use and Care Manual
Thank you for selecting a Manitowoc Ice Machine, the dependability leader in ice making equipment and
related products. With proper installation, care and maintenance, your new Manitowoc Ice Machine will
provide you with many years of reliable and economical performance.
Part Number 80-1207-3
Rev. C 7/00
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Table of Contents
Table of Contents
Model/Serial Number Location ......................................................................................................................1-2
Owner Warranty Registration Card..............................................................................................................1-3
Warranty Coverage .........................................................................................................................................1-3
General..............................................................................................................................................................2-1
Ice Machine Dimensions..................................................................................................................................2-1
Ice Storage Bin Dimensions ............................................................................................................................2-3
Location of Ice Machine..................................................................................................................................2-5
Leveling the Ice Storage Bin ...........................................................................................................................2-6
Electrical Service..............................................................................................................................................2-6
Water Service/Drains.......................................................................................................................................2-10
Installation Checklist.......................................................................................................................................2-19
Before Starting the Ice Machine.....................................................................................................................2-20
Component Identification ...............................................................................................................................3-1
Ice Making Sequence of Operation ................................................................................................................3-2
Operational Checks .........................................................................................................................................3-4
General..............................................................................................................................................................4-1
Ice Machine Inspection....................................................................................................................................4-1
Exterior Cleaning.............................................................................................................................................4-1
Cleaning the Condenser ..................................................................................................................................4-1
Interior Cleaning and Sanitizing....................................................................................................................4-3
Removal of Parts for Cleaning/Sanitizing .....................................................................................................4-6
Water Treatment/Filtration............................................................................................................................4-11
Checklist............................................................................................................................................................5-1
Safety Limit Feature........................................................................................................................................5-2
i
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Table of Contents
Page Intentionally Left Blank
ii
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Section 1
General Information
Section 1
General Information
Owner Warranty Registration Card
GENERAL
EXCLUSIONS
Warranty coverage begins the day your new ice
machine is installed.
The following items are not included in the ice
machine’s warranty coverage:
1. Normal maintenance, adjustments and cleaning as
outlined in this manual.
Important
Complete and mail the OWNER WARRANTY
REGISTRATION CARD as soon as possible to
validate the installation date.
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.
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.
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.
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.
Important
This product is intended exclusively for
commercial application. No warranty is extended
for personal, family, or household purposes.
7. This product is intended exclusively for
commercial application. No warranty is extended
for personal, family, or household purposes.
PARTS
1. 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.
2. The evaporator and compressor are covered by an
additional two (2) year (five years total) warranty
beginning on the date of the original installation.
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.
Normal maintenance, adjustments and cleaning as
outlined in this manual are not covered by the
warranty.
LABOR
1. Labor required to repair or replace defective
components is covered for three (3) years from
the date of original installation.
2. The evaporator is covered by an additional two
(2) year (five years total) labor warranty beginning
on the date of the original installation..
1-1
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General Information
Section 1
Page Intentionally Left Blank
1-2
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Section 2
Installation Instruction
Section 2
Installation Instructions
General
These instructions are provided to assist the
qualified installer. Check your local Yellow Pages
for the name of the nearest Manitowoc distributor,
or call Manitowoc Ice, Inc. for information
regarding start-up services.
Important
Failure to follow these installation guidelines may
affect warranty coverage.
Ice Machine Dimensions
Q800 ICE MACHINE
WATER COOLED
24.50”
(62.23 cm)
30.00”
(76.20 cm)
2.50”
(6.35 cm)
3.38”
H
(8.59 cm)
1.88”
(4.78 cm)
2.38”
(6.05 cm)
5.00”
(12.70 cm)
4.38”
(11.12 cm)
7.88”
(20.02 cm)
10.38”
(26.37 cm)
5.75”
(14.61 cm)
SV1612
3.13”
(7.95 cm)
0.75”
(1.91 cm)
2-1
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Installation Instructions
Section 2
Location of Ice Machine
Leveling the Ice Storage Bin
1. Screw the leveling legs onto the bottom of the
bin.
The location selected for the ice machine must meet
the following criteria. If any of these criteria are not
met, select another location.
2. Screw the foot of each leg in as far as possible.
• The location must be free of airborne and other
contaminants.
• The air temperature must be at least 35°F (1.6°C),
but must not exceed 110°F (43.4°C).
CAUTION
The legs must be screwed in tightly to prevent
them from bending.
• The location must not be near heat-generating
equipment or in direct sunlight.
3. Move the bin into its final position.
4. Level the bin to assure that the bin door closes
and seals properly. Use a level on top of the bin.
Turn each foot as necessary to level the bin.
5. Inspect bin gasket prior to ice machine
installation. (Manitowoc bins come with a closed
cell foam gasket installed along the top surface of
the bin.)
• The location must not obstruct air flow through or
around the ice machine. Refer to the chart below
for clearance requirements.
Water-Cooled
Top/Sides
Ba c k
5” (127 mm)*
5” (127 mm)*
*There is no minimum clearance required. This value
is recommended for efficient operation and servicing
only.
6. Install ice machine on bin.
NOTE: An optional caster assembly is available for
use in place of the legs. Installation instructions are
supplied with the casters.
THREAD
LEVELING LEG
INTO BASE OF
CABINET
THREAD “FOOT”
IN AS FAR AS
POSSIBLE
SV1606
Leveling Leg and Foot
2-2
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Section 2
Installation Instructions
Q800 ICE MACHINE
Electrical Service
Voltage
Phase
Cycle
Water Cooled
Maximum Minimum
GENERAL
Ice
Machine
Fuse
Circuit
Breaker
20
Circuit
Amps
WARNING
All wiring must conform to local, state and
national codes.
208-230/1/60
11.4
8.2
Q800 208-230/3/60
15
230/1/50
20
10.6
VOLTAGE
The maximum allowable voltage variation is ± 10%
of the rated voltage at ice machine start-up (when the
electrical load is highest).
Electrical Wiring Connections
WARNING
WARNING
These diagrams are not intended to show proper
wire routing, wire sizing, disconnects, etc., only
the correct wire connections.
The ice machine must be grounded in accordance
with national and local electrical codes.
All electrical work, including wire routing and
grounding, must conform to local, state and
national electrical codes.
FUSE/CIRCUIT BREAKER
A separate fuse/circuit breaker must be provided for
each ice machine. Circuit breakers must be H.A.C.R.
rated (does not apply in Canada).
Though wire nuts are shown in the drawings, the
ice machine field wiring connections may use
either wire nuts or screw terminals.
MINIMUM CIRCUIT AMPACITY
The minimum circuit ampacity is used to help select
the wire size of the electrical supply. (Minimum
circuit ampacity is not the ice machine’s running amp
load.)
Water Cooled Ice Machine
208-230/1/60
The wire size (or gauge) is also dependent upon
location, materials used, length of run, etc., so it must
be determined by a qualified electrician.
L1
L1
N = 115V
OR
L2 = 208-230V
GROUND
GROUND
ICE MACHINE
CONNECTIONS
TO SEPARATE
FUSE/ BREAKER
SV1258
2-3
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Installation Instructions
Section 2
Water Service/Drains
Drain Connections
Water Inlet Lines
Follow these guidelines when installing drain lines to
prevent drain water from flowing back into the ice
machine and storage bin:
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.)
• If water pressure exceeds the maximum
recommended pressure, obtain a water pressure
regulator from your Manitowoc distributor.
• Install a water shut-off valve for both the ice
making and condenser water lines.
• Drain lines must have a 1.5 inch drop per 5 feet
of run (2.5 cm per meter), and must not create
traps.
• The floor drain must be large enough to
accommodate drainage from all drains.
• Run separate bin and ice machine drain lines.
Insulate them to prevent condensation.
• Vent the bin and ice machine drain to the
atmosphere. Do not vent the condenser drain on
water-cooled models.
• Insulate water inlet lines to prevent condensation.
• Use teflon tape to seal threaded fittings.
Important
Install sump trough drain plug before starting the
ice machine.
CAUTION
Plumbing must conform to applicable
codes.
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS
Water
Water
Ice Machine
Fitting
Tubing Size Up to Ice
Machine Fitting
3/8” (9.5 mm)
minimum inside
dia meter
Location
Temperature
Pressure
Ice Making 33°F (0.6°C ) Min. 20 psi (137.9 kPA) Min.
3/8” Fema le
Pipe Threa d
Water Inlet
90°F (32.2°C )
80 psi (551.5 kPA) Ma x.
Ma x.
1/2” (12.7 mm)
minimum inside
dia meter
Ice Making
Water Drain
1/2” Fema le
Pipe Threa d
---
---
Condenser 33°F (0.6°C ) Min. 20 psi (137.9 kPA) Min.
Water Inlet
90°F (32.2°C )
150 psi (1034.2 kPA)
Ma x.
3/8” Fema le Pipe Threa d
Ma x.
1/2” (12.7 mm)
minimum inside
dia meter
3/4” (19.1 mm)
minimum inside
dia meter
Condenser
Water Drain
1/2” Fema le
Pipe Threa d
---
---
---
3/4” Fema le
Pipe Threa d
---
Bin Drain
2-4
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Section 2
Installation Instructions
WATER SUPPLY AND DRAIN LINE SIZING ILLUSTRATION
CONDENSER WATER
INLET FITTING
1/2” F.P.T. (1.27 cm)
CONDENSER WATER
DRAIN FITTING
1/2” F.P.T. (1.27 cm)
CONDENSER WATER
INLET TUBING
1/2” MIN. I.D. (1.27 cm)
18.00” VENT
(45.70 cm)
(SEE BELOW)
ICE MAKING WATER
INLET FITTING
3/8” F.P.T. (0.95 cm)
ICE MAKING WATER
INLET TUBING
3/8” MIN. I.D. (0.95 cm)
CONDENSER WATER
DRAIN TUBING
1/2” MIN. I.D. (1.27 cm)
WATER SHUT
OFF VALVE
ICE MAKING WATER
DRAIN FITTING
1/2” F.P.T. (1.27 cm)
SLOPE
ICE MAKING WATER
DRAIN TUBING
1/2” MIN. I.D. (1.27 cm)
VENT
VENT
18.00”
(45.70 cm)
BIN DRAIN FITTING
3/4” F.P.T (1.91 cm)
OPEN, TRAPPED OR
VENTED DRAIN
BIN DRAIN TUBING
3/4” MIN. I.D. (1.91 cm)
SV1626
Typical Water Supply Drain Installation
2-5
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Installation Instructions
Section 2
Installation Checklist
Before Starting the Ice Machine
Is the ice machine level?
All Manitowoc ice machines are factory-operated and
adjusted before shipment. Normally, new
installations do not require any adjustment.
Has all of the internal packing been removed?
Have all of the electrical and water connections
been made?
To ensure proper operation, follow the Operational
Checks in this manual. Starting the ice machine and
completing the Operational Checks are the
responsibilities of the owner/operator.
Has the sump trough drain plug been installed?
Has the supply voltage been tested and checked
against the rating on the nameplate?
Adjustments and maintenance procedures outlined in
this manual are not covered by the warranty.
Is their proper clearance around the ice machine
for air circulation?
Has the ice machine been installed where
ambient temperatures will remain in the range
of 35° - 110°F (1.7° - 43.3°C)?
WARNING
PERSONNEL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
Has the ice machine been installed where the
incoming water temperature will remain in the
range of 33° - 90°F (0.6° - 32.2°C)?
Is there a separate drain for the water-cooled
condenser?
Are the ice machine and bin drains vented?
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?
2-6
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Section 3
Ice Machine Operation
Section 3
Ice Machine Operation
Component Identification
HOT GAS
VALVE
WATER DUMP
VALVE
CONDENSER
WATER
REGULATING VALVE
DRAIN HOSE
WATER
CONDENSER
COMPRESSOR
ICE THICKNESS
WATER INLET
VALVE
SV1604
DISTRIBUTION
TUBE
EVAPORATOR
PROBE
ICE/OFF/CLEAN
SWITCH
FLOW CLAMP
USED ON
REGULAR SIZE
CUBE ONLY
WATER FLOAT
VALVE
WATER CURTAIN
WATER PUMP
WATER TROUGH
SV1605
3-1
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Ice Machine Operation
Section 3
Ice Making Sequence of Operation
Initial Start-Up Or Start-Up After Automatic
Shut-Off
HARVEST SEQUENCE
5. Water Purge
The water pump continues to run, and the water
dump valve energizes for 45 seconds to purge the
water in the sump trough.
1. Water Purge
Before the compressor starts, the water pump and
water dump solenoid are energized for 45 seconds to
purge the ice machine of old water. This ensures that
the ice-making cycle starts with fresh water.
After the 45 second water purge, the water pump and
dump valve de-energize. (Refer to “Water Purge
Adjustment” for details.)
The hot gas valve is also energized during the water
purge, although it stays on for an additional 5
seconds (50 second total on time) during the initial
refrigeration system start-up.
The hot gas valve also opens at the beginning of the
water purge to divert hot refrigerant gas into the
evaporator.
2. Refrigeration System Start-Up
6. Harvest
The compressor starts after the 45-second water
purge, and remains on throughout the entire Freeze
and Harvest Sequences. The hot gas valve remains on
for 5 seconds during initial compressor start-up and
then shuts off.
The hot gas valve remains open and the refrigerant
gas warms the evaporator causing the cubes to slide,
as a sheet, off the evaporator and into the storage bin.
The sliding sheet of cubes swings the water curtain
out, opening the bin switch.
At the same time the compressor starts, the condenser
fan motor (air-cooled models) is supplied with power
throughout the entire Freeze and Harvest Sequences.
The fan motor is wired through a fan cycle pressure
control, therefore it may cycle on and off. (The
compressor and condenser fan motor are wired
through the contactor. As a result, any time the
contactor coil is energized, the compressor and fan
motor are supplied with power.)
The momentary opening and re-closing of the bin
switch terminates the harvest sequence and returns
the ice machine to the Freeze Sequence (steps 3 - 4).
AUTOMATIC SHUT-OFF
7. Automatic Shut-Off
When the storage bin is full at the end of a harvest
sequence, the sheet of cubes fails to clear the water
curtain and will hold it open. After the water curtain
is held open for 7 seconds, the ice machine shuts off.
The ice machine remains off for 3 minutes before it
can automatically restart.
FREEZE SEQUENCE
3. Prechill
The compressor is on for 30 seconds prior to water
flow to prechill the evaporator.
The ice machine remains off until enough ice has
been removed from the storage bin to allow the ice to
fall clear of the water curtain. As the water curtain
swings back to the operating position, the bin switch
re-closes and the ice machine restarts (steps 1 - 2),
provided the 3-minute delay period is complete.
4. Freeze
The water pump restarts after the 30-second prechill.
An even flow of water is directed across the
evaporator and into each cube cell, where it freezes.
The water fill valve will cycle on, then off one more
time to refill the water trough.
When sufficient ice has formed, the water flow (not
the ice) contacts the ice thickness probe. After
approximately 7 seconds of continual water contact,
the harvest sequence is initiated. The ice machine
cannot initiate a harvest sequence until a 6-minute
freeze lock has been surpassed.
3-2
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Section 3
Ice Machine Operation
Operational Checks
GENERAL
Your Manitowoc ice machine was factory-operated
and adjusted before shipment. Normally, a newly
installed ice machine does not require any
adjustment.
B. Raise or lower the float valve assembly as
necessary, then tighten the screws.
C. If further adjustment is required, carefully
bend the float arm to achieve the correct
water level.
ICE THICKNESS CHECK
After a harvest cycle, inspect the ice cubes in the ice
storage bin. The ice thickness probe is factory-set to
maintain an ice bridge of 1/8 inch (3.2mm). If an
adjustment is needed, follow the steps below.
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
1. Turn the ice thickness probe adjustment screw
clockwise for a thicker ice bridge, or
Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.
counterclockwise for a thinner ice bridge.
IMPORTANT
It is normal for cubes to have a slight dimple. This
WATER LEVEL CHECK
is
a
normal characteristic associated with
1. Check the water level while the ice machine is in
the freeze mode and the water pump is running.
The correct water level is 1/8”-1/2” (3-12.5 mm)
above the water pump impeller housing.
Manitowoc’s unique shape.
ADJUSTING
SCREW
WATER
PUMP
PUMP
OUTLET
1/8” ICE
THICKNESS
SV1208
WATER PUMP
IMPELLER
HOUSING
Ice Thickness Adjustment
WATER LEVEL
1/8”-1/2” ABOVE
HOUSING
2. Make sure the ice thickness probe wire and
bracket do not restrict movement of the probe.
SV1331
Water Level Check
2. The float valve is factory-set for the proper water
level. If adjustments are necessary:
A. Loosen the two screws on the float valve
bracket.
3-3
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Ice Machine Operation
Section 3
HARVEST SEQUENCE WATER PURGE
The harvest sequence water purge adjustment may be
used when the ice machine is hooked up to special
water systems, such as a de-ionized water treatment
system.
WARNING
Disconnect the electrical power to the ice machine
at the electrical disconnect before proceeding.
For your safety, and to eliminate errors, we
recommend that a qualified service technician make
the harvest water purge adjustment.
Important
The harvest sequence water purge is factory-set at
45 seconds. A shorter purge setting is not
recommended. This can increase water system
cleaning and sanitizing requirements.
CONTROL
BOARD
WATER PURGE
ADJUSTMENT
• The harvest sequence water purge may be set to
15, 30, or 45 seconds.
• During the harvest sequence water purge, the
water fill valve energizes and de-energizes by
time. The water purge must be at the factory
setting of 45 seconds for the water fill valve to
energize during the last 15 seconds of the water
purge. If it is set to less than 45 seconds, the
water fill valve will not energize during the water
purge.
45
30
15
SV1617
Water Purge Adjustment
3-4
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Section 4
Maintenance
Section 4
Maintenance
WATER-COOLED CONDENSER
MANITOWOC’S PATENTED CLEANING OR
SANITIZING TECHNOLOGY
AND WATER REGULATING VALVE
The water-cooled condenser and water-regulating
valve may require cleaning due to scale build-up.
Manitowoc ice machines include technology that
allows the initiation and completion of a cleaning or
sanitizing cycle at the flip of a switch. This cycle will
permit cleaning or sanitizing of all surfaces that come
in contact with the water distribution system.
Periodic maintenance must be performed that
includes sanitizing the bin (or dispenser) and adjacent
surface areas, which can not be contacted by the
water distribution system.
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, they must be
performed by qualified maintenance or service
personnel. Follow the manufacturer instructions for
the specific product used.
This technology will also allow initiation and
completion of a clean or sanitize cycle after which
the ice machine automatically starts ice making
again.
Refer to the cleaning or sanitizing procedure for
complete details.
4-1
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Maintenance
Section 4
Interior Cleaning and Sanitizing
GENERAL
CAUTION
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 or
installation of the AuCS® accessory (Automatic
Cleaning System). If required, an extremely dirty ice
machine may be taken apart for cleaning and
sanitizing.
Never use anything to force ice from the
evaporator. Damage may result.
Step 2 To start a cleaning cycle, move the toggle
switch to the CLEAN position. The water will flow
through the water dump valve and down the drain.
The Clean light will turn on to indicate the ice
machine is in the Clean mode.
Step 3 Wait about one minute or until water starts to
flow over the evaporator.
CAUTION
Step 4 Add the proper amount of Manitowoc Ice
Machine Cleaner to the water trough.
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.
Model
Q800
Amount of Cleaner
5 ounc es (150 ml)
Step 5 The ice machine will automatically time out a
ten-minute cleaning cycle, followed by six rinse
cycles, and then stop. The Clean light will turn off to
indicate the clean mode is completed. This entire
cycle lasts approximately 25 minutes.
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.
NOTE: Periodic cleaning must be performed on
adjacent surface areas not contacted by the water
distribution system.
WARNING
Wear rubber gloves and safety goggles (and/or face
shield) when handling Ice Machine Cleaner or
Sanitizer.
Step 6 When the cleaning process stops, move the
toggle switch to the OFF position. Refer to
“Sanitizing Procedure” on the next page.
Step 7
A. The ice machine may be set to start and finish
a cleaning procedure, and then automatically
start ice making again.
B. Wait about one minute into the cleaning cycle
(until water starts to flow over the
evaporator), then move the switch from
CLEAN to ICE position.
C. When the cleaning cycle is completed, the
clean light will turn off and a ice making
sequence will start automatically.
CLEANING PROCEDURE
Ice machine cleaner is used to remove lime scale or
other mineral deposits. It is not used to remove algae
or slime. Refer to “Sanitizing Procedure” on the next
page for removal of algae and slime. To initiate a
cleaning cycle using Manitowoc’s Patented Cleaning
Technology use the following procedure.
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.
NOTE: After the toggle switch is moved to the ICE
position, opening the curtain switch will interrupt the
cleaning sequence. The sequence will resume from
the point of interruption when the curtain switch
closes.
4-2
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Section 4
Maintenance
Sanitizing Procedure
Step 6 When the sanitizing process stops, move the
toggle switch to the ICE position to start making ice
again.
Use sanitizer to remove algae or slime. Do not use it
to remove lime scale or other mineral deposits. To
initiate a sanitizing cycle using Manitowoc’s
Patented Cleaning/Sanitizing Technology use the
following procedure.
Step 7
A. The ice machine may be set to start and finish
a sanitizing procedure, and then automatically
start ice making again.
B. Wait about one minute into the sanitizing
cycle (until water starts to flow over the
evaporator), then move the switch from
WASH to ICE position.
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
C. When the sanitizing cycle is completed, the
clean light will turn off and a ice making
sequence will start automatically.
Never use anything to force ice from the
evaporator. Damage may result.
NOTE: After the toggle switch is moved to the ICE
position, opening the curtain switch will interrupt the
sanitizing sequence. The sequence will resume from
the point of interruption when the curtain switch
closes.
Step 2 To start a sanitizing cycle, move the toggle
switch to the CLEAN position. The water will flow
through the water dump valve and down the drain.
The Clean light will turn on to indicate the ice
machine is in the Cleaning mode.
Step 3 Wait about one minute or until water starts to
flow over the evaporator.
Step 4 Add the proper amount of Manitowoc Ice
Machine Sanitizer to the water trough.
Model
Amount of Sanitizer
Q800
3 ounc es (90 ml)
Step 5 The ice machine will automatically time out a
ten-minute sanitizing cycle, followed by six rinse
cycles, and then stop. The Clean light will turn off to
indicate the sanitizing mode is completed. This
entire cycle lasts approximately 25 minutes.
Note: Periodic cleaning must be performed on
adjacent surface areas not contacted by the water
distribution system. If the bin requires sanitizing,
remove all of the ice and sanitize it with a solution of
1 ounce (30 ml) of sanitizer with up to 4 gallons
(15/l) of water.
4-3
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Maintenance
REMOVAL OF PARTS FOR
CLEANING OR SANITIZING
1. Turn off the water supply to the ice machine at
the water service valve.
Section 4
4. Use a soft-bristle brush or sponge (NOT a wire
brush) to carefully clean the parts.
WARNING
CAUTION
Disconnect electric power to the ice machine at the
electric switch box before proceeding.
Do not mix Cleaner and Sanitizer solutions
together. It is a violation of Federal law to use these
solutions in a manner inconsistent with their
labeling.
2. Remove the parts of the water curtain and the
components you want to clean or sanitize. See the
following pages for removal procedures for these
parts.
CAUTION
Do not immerse the water pump motor in the
cleaning or sanitizing solution.
WARNING
Wear rubber gloves and safety goggles (and/or face
shield) when handling Ice Machine Cleaner or
Sanitizer.
5. Use the solution and a brush to clean the top,
sides, and bottom evaporator extrusions; the
inside of the ice machine panels; and the entire
inside of the bin.
1. Soak the removed part(s) in a properly mixed
solution.
Solution Type
C lea ner
Water
1 ga l. (4 l)
4 ga l. (15 l)
Mixed With
16 oz (500 ml) c lea ner
1 oz (30 ml) sa nitizer
6. Thoroughly rinse all of the parts and surfaces
with clean water.
Sa nitizer
7. Install the removed parts.
NOTE: Incomplete rinsing of the ice thickness probe
or water level probe may leave a residue. This could
cause the ice machine to malfunction. For best
results, brush or wipe the probes off while rinsing it.
Thoroughly dry the probes before installing them.
8. Turn on the water and electrical supply.
4-4
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Section 4
Water Dump Valve
Maintenance
The water dump valve normally does not require
removal for cleaning. To determine if removal is
necessary:
1. Locate the water dump valve.
2. Set the toggle switch to ICE.
3. While the ice machine is in the freeze mode,
check the dump valve’s clear plastic outlet drain
hose for leakage.
3.
RETAI
NING
DRAIN
HOSE
COIL
A. If the dump valve is leaking, remove,
disassemble and clean it.
WATER
DUMP
VALVE
DO NOT
DISCONNECT
B. If the dump valve is not leaking, do not
remove it. Instead, follow the “Cleaning
Procedure” on page 4-3.
WIRES AT COIL
VALVE
SHIELD
Follow the procedure below to remove the dump
valve.
Dump Valve Removal
Important
The plunger and the inside of the enclosing tube
must be completely dry before assembly.
WARNING
Disconnect the electric power to the ice machine at
the electric service switch box and turn off the
water supply before proceeding.
NOTE: During cleaning, do not stretch, damage or
remove the spring from the plunger. If it is removed,
slide the spring’s flared end into the plunger’s slotted
top opening until the spring contacts the plunger
spring stop.
1. If so equipped, remove the water dump valve
shield from its mounting bracket.
2. Lift and slide the coil retainer cap from the top of
the coil.
3. Note the position of the coil assembly on the
valve for assembly later. Leaving the wires
attached, lift the coil assembly off the valve body
and the enclosing tube.
4. Press down on the plastic nut on the enclosing
tube and rotate it 1/4 turn. Remove the enclosing
tube, plunger, and plastic gasket from the valve
body.
5. Remove the valve body.
6. Remove the tubing from the dump valve by
twisting the clamps off.
7. Remove the two screws securing the dump valve
and the mounting bracket.
PLUNGER
SPRING STOP
CAP
NOTE: At this point, the water dump valve can easily
be cleaned. If complete removal is desired, continue
with step 5.
COIL
SPRING
PLUNGER
3.
DIAPH
RAM
ENCLOSING
TUBE
VALVE BODY
Dump Valve Disassembly
4-5
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Maintenance
Water Pump
Section 4
Ice Thickness Probe
1. Compress the side of the ice thickness probe near
the top hinge pin and remove it from the bracket.
WARNING
Disconnect the electric power to the ice machine at
the electric service switch box and turn off the
water supply.
DISCONNECT
WIRE LEAD
COMPRESS
HINGE PIN
TO REMOVE
1. Disconnect the water pump power cord.
POWER
CORD
WATER
PUMP
LOOSEN
SCREWS
ICE
THICKNESS
PROBE
PUMP
OUTLET
SV1619
Ice Thickness Probe Removal
NOTE: At this point, the ice thickness probe can
easily be cleaned. If complete removal is desired,
continue with step 2 below.
SV1618
Water Pump Removal
2. Disconnect the hose from the pump outlet.
3. Loosen the screws securing the pump mounting
bracket to the bulkhead.
4. Lift the pump and bracket assembly off the
screws.
WARNING
Disconnect the electric power to the ice machine at
the electric service switch box.
2. Disconnect the wire lead from the control board
inside the electrical control box.
4-6
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Section 4
Maintenance
Float Valve
1. Turn off the water supply to the ice machine at
the water service valve.
2. Turn the splash shield counterclockwise one or
two turns.
WATER INLET
TUBE
COMPRESSION
FITTING
SPLASH
SHIELD
FILTER SCREEN
AND CAP
SV1217
Float Valve Removal
3. Pull the float valve forward and off the mounting
bracket.
4. Disconnect the water inlet tube from the float
valve at the compression fitting.
5. Remove the filter screen and cap for cleaning.
4-7
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Maintenance
Water Distribution Tube
Section 4
Water Curtain
1. Disconnect the water hose from the distribution
1. Gently flex the curtain in the center and remove it
from the right side.
tube.
2
3
1. LIFT UP
1
2. SLIDE BACK
3. SLIDE TO RIGHT
THUMBSCREW
DISTRIBUTION
TUBE
STEP 1
LOCATING PIN
THUMBSCREW
STEP 2
SV1620
SV1213
Water Distribution Tube Removal
1. Loosen the two thumbscrews, which secure the
distribution tube.
2. Lift the right side of the distribution tube up off
the locating pin, then slide it back and to the
right.
Water Curtain Removal
2. Slide the left pin out.
CAUTION
Do not force this removal. Be sure the locating pin
is clear of the hole before sliding the distribution
tube out.
3. Disassemble for cleaning.
A. Twist both of the inner tube ends until the
tabs line up with the keyways.
B. Pull the inner tube ends outward.
INNER
TUBE
INNER
TUBE
TAB
KEYWAY
SV1211
Water Distribution Tube Disassembly
4-8
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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.
Routine adjustments and maintenance procedures are not covered by the warranty.
Problem
Possible Cause
To Correct
Ic e ma c hine does not opera te. No elec tric a l power to the ic e
Repla c e the fuse/reset the
brea ker/turn on the ma in switc h.
ma c hine.
IC E/OFF/C LEAN toggle switc h set
improperly.
Wa ter c urta in stuc k open.
Move the toggle switc h to the IC E
position.
Wa ter c urta in must be insta lled a nd
swinging freely.
Ic e ma c hine stops, a nd c a n be Sa fety limit fea ture stopping the ic e
resta rted by moving the toggles ma c hine.
switc h to OFF a nd ba c k to IC E.
Refer to “Sa fety Limit Fea ture” on the
next pa ge.
Ic e ma c hine does not relea se
ic e or is slow to ha rvest.
Ic e ma c hine is dirty.
C lea n a nd sa nitize the ic e ma c hine.
Ic e ma c hine is not level.
Level the ic e ma c hine.
.
Wa ter regula ting va lve lea ks in ha rvest Adjust or Repla c e Wa ter-regula ting
mode (wa ter-c ooled models).
The six-minute freeze time loc k-in ha s
not expired yet.
Ic e thic kness probe is dirty.
Ic e thic kness probe wire is
disc onnec ted.
va lve.
Ic e ma c hine does not c yc le
into ha rvest mode.
Wa it for freeze loc k-in to expire.
C lea n a nd sa nitize the ic e ma c hine.
C onnec t the wire.
Ic e thic kness probe is out of
a djustment.
Adjust the ic e thic kness probe.
Uneven ic e fill (thin a t top of
eva pora tor).
See “Sha llow or Inc omplete C ubes”
on the next pa ge.
Ic e qua lity is poor (soft or not
c lea r).
Poor inc oming wa ter qua lity.
C onta c t a qua lified servic e c ompa ny
to test the qua lity of the inc oming
wa ter a nd ma ke a ppropria te filter
rec ommenda tions.
Wa ter filtra tion is poor.
Ic e ma c hine is dirty.
Wa ter dump va lve is not working.
Repla c e the filter.
C lea n a nd sa nitize the ic e ma c hine.
Disa ssemble a nd c lea n the wa ter
dump va lve.
Continued on next page...
5-1
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Before Calling for Service
Section 5
Problem
Possible Cause
To Correct
Adjust the ic e thic kness probe.
Ic e ma c hine produc es sha llow Ic e thic kness probe is out of
or inc omplete c ubes, or the ic e a djustment.
fill pa ttern on the eva pora tor is Wa ter trough level is to high or too low. Set wa ter level.
inc omplete.
Wa ter floa t va lve filter sc reen is dirty.
Remove the wa ter floa t va lve a nd
c lea n the filter sc reen.
Repla c e the filter.
C onnec t the ic e ma c hine to a c old
wa ter supply
Wa ter filtra tion is poor.
Hot inc oming wa ter.
Wa ter floa t va lve is not working.
Inc orrec t inc oming wa ter pressure.
Ic e ma c hine is not level.
Remove the wa ter floa t va lve a nd
c lea n it.
Wa ter pressure must be 20-80 psi
(137.9 - 551.5 kPA).
Level the ic e ma c hine.
Low ic e c a pa c ity.
Wa ter floa t va lve filter sc reen is dirty.
Remove the wa ter floa t va lve a nd
c lea n the filter sc reen.
Inc oming wa ter supply is shut off.
Wa ter floa t va lve stuc k open or
lea king.
Open the wa ter servic e va lve.
Remove the wa ter floa t va lve a nd
c lea n it.
Safety Limit Feature
1. Move the ICE/OFF/CLEAN switch to OFF and
then back to ICE.
In addition to the standard safety controls, such as
the high pressure cutout, your Manitowoc ice
machine features built-in safety limits which will
stop the ice machine if conditions arise which could
cause a major component failure.
A. If the safety limit feature has stopped the ice
machine, it will restart after a short delay.
Proceed to step 2.
B. If the ice machine does not restart, see “Ice
machine does not operate” on the previous
page.
Before calling for service, re-start the ice machine
using the following procedure:
2. Allow the ice machine to run to determine if the
condition is recurring.
A. If the ice machine stops again, the condition
has recurred. Call for service.
B. If the ice machine continues to run, the
condition has corrected itself. Allow the ice
machine to continue running.
5-2
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MANITOWOC ICE, INC.
2110 South 26th Street P.O. Box 1720
Ma nitowoc , WI 54221-1720
Phone: (920) 682-0161
Fa x: (920) 683-7585
Web Site - www.ma nitowoc ic e.c om
We reserve the right to ma ke produc t
improvements a t a ny time.
©2000 Ma nitowoc Ic e, Inc .
Spec ific a tions a nd design a re subjec t
to c ha nge without notic e.
Litho in U.S.A.
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