Manitowoc Ice Q170 Installation Manual
Q130/Q170/Q210/Q270
Manitowoc
UnderCounter Model
Ice Machine
Installation, Use & Care Manual
This manual is updated as new information and models are released.
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This manual contains English and French text
America’s #1 Selling Ice Machine
Part Number 040001358 05/10
Section 1
General Information
Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Section 2
Installation Instructions
Location of Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Ice Machine Heat of Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Leveling the Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Water Service/Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Water Supply and Drain Line Sizing/Connections . . . . . . . . . . . . . . . . . . . . . . . . 8
Before Starting the Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table of Contents
Bin Caster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Arctic Pure Water Filter System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Manitowoc Cleaner and Sanitizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Fuse/Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Total Circuit Ampacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ground Fault Circuit Interrupter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Q130/Q170/Q210/Q270 Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Water Inlet Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cooling Tower Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Section 3
Operation
Ice Making Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Initial Start-up Or Start-up After Automatic Shut-off . . . . . . . . . . . . . . . . . . . . . . 10
Freeze Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Harvest Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Automatic Shut-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Energized Parts Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Operational Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Siphon System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Water Float Valve Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Water Level Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Ice Bridge Thickness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2 Part Number 040001358 05/10
Section 4
Maintenance
Section 5
Customer Support
Table of Contents (continued)
Interior Cleaning and Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cleaning and Sanitizing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Ice Machine Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Exterior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Cleaning the Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Removal from Service/Winterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Safety Limit Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Commercial Ice Machine Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Residential Ice Machine Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Part Number 040001358 05/10 3
Section 1
!
Warning
General Information
Model Numbers
This manual covers the following models:
Self-Contained
Air-Cooled
QR0130A QR0131W
QD0132A QD0133W
QY0134A QY0135W
QD0172A -QY0174A -QR0210A QR0211W
QD0212A QD0213W
QY0214A QY0215W
QR0270A QR0271W
QD0272A QD0273W
QY0274A QY0275W
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.
Self-Contained
Water-Cooled
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 gal (3.78 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 models Q130,
Q170, Q210 or Q270 ice machines.
Q130, Q170, Q210 and Q270 model ice machines do
not have a water curtain covering the evaporator. The
ice damper performs the functions of the water curtain
see Section 4 for details.
4 Part Number 040001358 05/10
Section 2
!
Caution
!
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 40F (4C), but
must not exceed 110F (43C).
• The location must not be near heat-generating
equipment or in direct sunlight.
• The location must be capable of supporting the
weight of the ice machine and a full bin of ice.
• The location must allow enough clearance for water,
drain and electrical connections in the rear of the ice
machine.
• The location must not obstruct airflow through or
around the ice machine (condenser airflow is in and
out the front). Refer to the chart below for clearance
requirements.
Ice Machine Heat of Rejection
Series
Ice Machine
Q130 2400 2900
Q170
Q210 2400 3400
Q270 3800 6000
* 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 -c on tained air cooled ice machines are installed.
Air Conditioning** Peak
Heat of Rejection*
Leveling the Ice Machine
1. Screw the leveling legs onto the bottom of the ice
machine.
2. Screw the foot of each leg in as far as possible.
Self-Contained
Air-Cooled
Top/Sides 5" (127 mm)* 5" (127 mm)*
Back 5" (127 mm)* 5" (127 mm)*
NOTE: The ice machine may be built into a cabin et .
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 32F (0C).
Failure caused by exposure to freezing
temperatures is not covered by the warranty. See
“Removal from Service/Winterization” Section 4.
Self-Contained
Water-Cooled
The legs must be screwed in tightly to prevent
them from bending.
3. Move the ice machine into its final position.
4. Level the ice machine to assure that the siphon
system functions correctly. Use a level on top of the
ice machine. Turn each foot as necessary to level
the ice machine from front to back and side to side.
NOTE: An optional 2 ½" caster assembly is available for
use in place of the legs on the Q130, Q170, Q210 and
Q270. Installation instructions are supplied with the
casters.
Part Number 040001358 05/10 5
Installation Instructions Section 2
!
Warning
!
Warning
!
Warning
Electrical Service
GENERAL
All wiring must conform to local, state and national
codes.
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 115/1/60 ice machines are factory pre-wired with a
8’ power cord, and NEMA 5-15P-plug configuration.
The 208-230/1/60 and 230/50/1 ice machines are
factory pre-wired with a 8’ power cord only, no plug is
supplied.
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).
The ice machine must be grounded in accordance
with national and local electrical codes.
TOTAL CIRCUIT AMPACITY
The total circuit ampacity is used to help select the wire
size of the electrical supply.
The wire size (or gauge) is also dependent upon
location, materials used, length of run, etc., so it must be
determined by a qualified electrician.
GROUND FAULT CIRCUIT INTERRUPTER
Ground Fault Circuit Interrupter (GFCI/GFI) protection is
a system that shuts down the electric circuit (opens it)
when it senses an unexpected loss of power,
presumably to ground. Manitowoc Ice, Inc. does not
recommend the use of a GFCI/GFI circuit protection with
our equipment. If code requires the us e of a GF CI /G FI
then you must follow the local code. The circuit must be
dedicated, sized properly and there must be a panel
GFCI/GFI breaker. We do not recommend GFCI/GFI
outlets as they are known for more intermittent n uisance
trips than panel breakers.
PERSONAL INJURY POTENTIAL
If the supply cord is damaged, do not operate the
equipment until the cord is replaced by a service
agent or similarly qualified person.
Q130/Q170/Q210/Q270 ICE MACHINE
Ice Machine Voltage
Phase
Cycle
Q130 1 15/1/60 15 7.0 15 6.3
208-230/1/60 15 3.1 15 2.6
230/1/50 15 3.0 15 2.5
Q170 1 15/1/60 15 7.0 -- --
Q210 1 15/1/60 15 6.5 15 6.1
208-230/1/60 15 3.6 15 3.1
230/1/50 15 3.6 15 3.1
Q270
Danfoss
Compressor
Q270
Tecumseh
Compressor
1 15/1/60 15 10.7 15 9.9
208-230/1/60 15 5.2 15 4.7
230/1/50 15 5.2 15 4.7
1 15/1/60 15 8.5 15 7.7
208-230/1/60 15 4.5 15 4.0
230/1/50 15 4.5 15 4.0
Air-Cooled Water Cooled
Maximum Fuse/
Circuit Breaker
Total Amps Maximum Fuse/
Circuit Breaker
Total Amps
6
Part Number 040001358 05/10
Section 2 Installation Instructions
!
Warning
Important
Important
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.
PERSONAL INJURY POTENTIAL
For ice making, connect to a potable water supply
only .
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.
WATER INLET LINES
Follow these guidelines to install water inlet lines:
• Do not connect the ice machine to a hot water
supply. Be sure all hot water restrictors installed for
other equipment are working. (Check valves on sink
faucets, dishwashers, etc.)
• If water pressure exceeds the maximum
(80 psig-551.5 kPA) recommended pressure, obtain
a water pressure regulator from your Manitowoc
distributor.
• Install a water shut-off valve and union for both the
ice making and condenser water lines.
• Insulate water inlet 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 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 water-cooled condenser dra in
lines. Insulate them to prevent condensation.
• Vent the bin drai n to the atmosphere. Do not vent the
condenser drain on water-cooled models.
COOLING TOWER APPLICATIONS
(Water-Cooled Models)
A water cooling tower installation does not require
modification of the ice machine. The water regulator
valve for the condenser continues to control the
refrigeration discharge pressure.
It is necessary to know the amount of heat rejection and
the pressure drop through the condenser and water
valves (inlet and outlet) when using a cooling tower on
an ice machine.
• Water entering the condenser must not exceed 90F
(32C).
• Water flow through the con denser must not exceed 5
gallons (19 liters) per minute.
• Allow for a pressure drop of 7 psi (48 kPA) between
the condenser water inlet and the outlet of the ice
machine.
• Water exiting the condenser must not exceed 110F
(43C).
The Commonwealth of Massachusetts requires
that all water-cooled models must be connected
only to a closed loop, cooling tower system.
Part Number 040001358 05/10 7
Installation Instructions Section 2
!
Caution
VENT TUBING 8"
(20CM) LONG
BIN DRAIN
CONDENSER
WATER INLET
TUBING
WATER
SHUTOFF
VALVE
ICE MAKING WA TER
INLET TUBING 3/8"
MIN. ID (9.5 MM)
CONDENSER
WATER DRAIN
TUBING 1/2" MIN. ID
(12.7 MM)
Water Supply and Drain Line Sizing/Connections
Plumbing must conform to state and local codes.
Location Water
Ice Making
Water Inlet
40F (4C) Min.
90F (32C) Max.
Condenser W ater
Inlet
40F (4C) Min.
90F (32C) Max.
Condenser W ater
Drain
Bin Drain
Temperature
Water
Pressure
20 psi (137.9 kPA) Min.
Ice Machine
3/8" Female Pipe
80 psi (551.5 kPA) Max.
3/8" Female Pipe
20 psi (137.9 kPA) Min.
150 psi (1034.2 kPA) Max.
Q270 Only
1/2" Female Pipe
--- --- 1/2" Female Pipe
--- --- 1/2" Female Pipe
Fitting
Thread
Thread
Thread
Thread
Thread
Tubing Size Up to Ice
Machine Fitting
3/8" (9.5 mm) minimum
inside diameter
3/8" (9.5 mm) minimum
inside diameter
Q270 Only
1/2" (12.7 mm)
minimum inside diameter
1/2" (12.7 mm) minimum
inside diameter
1/2"” (12.7 mm) minimum
inside diameter
Typical Water Supply Drain Installation
8
Part Number 040001358 05/10
Section 2 Installation Instructions
!
Warning
Before Starting the Ice Machine
All Manitowoc ice machines are factory-operated and adjusted before shipment. Normally, new installations do not
require any adjustment.
To ensure proper operation, follow the Operational Checks in Section 3 of this manual. Starting the ice machine and
completing the Operational Checks are the responsibilities of the owner/operator.
Adjustments and maintenance procedures outlined in this manual are not covered by the warranty.
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
Installation Checklist
Is there a separate drain for the bin?
Is the ice machine level?
Are the ice machine and bin drains vented?
Has all of the internal packing been removed?
Have all of the electrical and water connection s
been made?
Has the supply voltage been tested and
checked against the rating on the nameplate?
Is there proper clearance around the ice
machine for air circulation?
Is the ice machine grounded and polarity
correct?
Has the ice machine been installed where
ambient temperatures will remain in the range
of 40° – 110°F (4° – 43°C)?
Has the ice machine been installed where the
incoming water temperature will remain in the
range of 40° – 90°F (4° – 32°C)?
Is there a separate drain for the water-cooled
condenser?
Are all electrical leads free from contact with
refrigeration lines and moving equipment?
Has the owner/operator been instructed
regarding maintenance and the us e of
Manitowoc Cleaner and Sanitizer?
Has the owner/operator completed the warranty
registration card?
Has the ice machine and bin been sanitized?
Is the toggle switch set to ice? (The toggle
switch is located directly behind the front panel).
Is the ice thickness control set correctly? (Refer
to Operational Checks to check/set the correct
ice bridge thickness).
Is the float valve in the OPEN position?
Part Number 040001358 05/10 9
Section 3
Operation
Ice Making Sequence of Operation
INITIAL START-UP OR START-UP AFTER
AUTOMATIC SHUT-OFF
1. Pressure Equalization
Before the compressor starts the hot gas valve is
energized for 15 seconds to equalize pressures during
the initial refrigeration system start-up.
2. Refrigeration System Start-Up
The compressor starts after the 15-second pressure
equalization, and remains on throughout the entire
Freeze and Harvest Sequences. The hot gas valve
remains on for 5 seconds during initial compressor startup and then shuts off.
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 relay . As a result, any time the relay coil is energized,
the compressor and fan motor are supplied with power.)
FREEZE SEQUENCE
3. Prechill
The compressor is on for 30 seconds prior to water flow
to Prechill the evaporator.
4. Freeze
The water pump starts after the 30-second Prechill. An
even flow of water is directed across the evaporator and
into each cube cell, where it freezes.
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 time
has been surpassed.
HARVEST SEQUENCE
5. Harvest
The water pump de-energizes stopping flow over the
evaporator. The rising level of water in the sump trough
diverts water out of the overflow tube, purging excess
minerals from the sump trough. The hot gas valv e also
opens to divert hot refrigerant gas into the evaporator.
The refrigerant gas warms the evaporator causing the
cubes to slide, as a sheet, off the evaporator an d into the
storage bin. The sliding sheet of cubes contacts the ice
damper, opening the bin switch.
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
6. Automatic Shut-Off
When the storage bin is full at the end of a Harvest
Sequence, the sheet of cubes fails to clear the ice
damper and will hold it down. After the ice damper is
held open for 7 seconds, the ice machine shuts off. The
ice machine remains off for 3 minutes before it can
automatically restart.
The ice machine remains off until enough ice has been
removed from the storage bin to allow the ice to fall clear
of the damper. As the ice damper 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.
10 Part Number 040001358 05/10
Section 3 Operation
Energized Parts Chart
CONTROL BOARD RELAYS RELAY
INITIAL START-UP/
START UP AFTER
AUTO SHUT-OFF:
1. Pressure
Equalization
2. Refrigeration
System Start-up
FREEZE
SEQUENCE:
3. Pre-Chill
4. Freeze
HARVEST
SEQUENCE:
5. Harvest
1 2 3 3A 3B
WATER
PUMP
OFF ON OFF OFF OFF
OFF ON ON ON ON
OFF OFF ON ON ON
ON OFF ON ON ON
OFF ON ON ON ON
HOT GAS
VALVE
RELAY
COIL
COMPRESSOR CONDENSER
FAN MOTOR
LENGTH
of “ON”
TIME
15
Seconds
5
Seconds
30
Seconds
Until 7 sec.
water contact
with ice
thickness
probe
Bin switch
activation
AUTOMATIC SHUT-
OFF:
6. Auto Shut-Off
* Condenser Fan Motor: The fan motor is wired through a fan cycle pressure control, therefore, it may cycle on and off.
OFF OFF OFF OFF OFF
Until
bin switch
re-closes
Part Number 040001358 05/10 11
Operation Section 3
WATER
LEVEL
SIPHON
CAP
STANDPIPE
DRAIN
PRESS TO
OPEN
PRESS TO
CLOSE
Operational Checks
GENERAL
Your Manitowoc ice machine was factory-operated and
adjusted before shipment. Normally , a newly inst alled ice
machine does not require any adjustment.
To ensure proper operation, always follow these
Operational Checks when starting the ice machine:
• for the first time
• after a prolonged out of service period
• after cleaning and sanitizing
Routine adjustments and maintenance procedures
outlined in this manual are not covered by the warranty.
SIPHON SYSTEM
To reduce mineral build-up and cleaning frequency, the
water in the sump trough must be purged during each
harvest cycle.
When the water pump de-energizes the level in the
water trough rises above the standpipe st artin g a siphon
action. The siphon action stops when the water level in
the sump trough drops. When the siphon action stops,
the float valve refills the water trough to the correct level.
Siphon System Check
Follow steps 1 through 6 under water level check.
WATER FLOAT VALVE CHECK
Before water will flow into the water trough the float
valve shut-off must be in the OPEN position.
Water Level
12
Part Number 040001358 05/10
Section 3 Operation
SIPHON CAP
SET THE WA TER LEVEL
TO THE LINE IN THE
WATER TROUGH
ADJUSTING SCREW
1/8" ICE BRIDGE THICKNESS
WATER LEVEL CHECK
Check the water level while the ice machine is in the ice
mode and the water pump is running. The correct water
level is 1/4" (6.3mm) to 3/8" (9.5mm) below the top of
the standpipe a line in the water trough indicates the
correct level.
Water Level
The float valve is factory-set for the proper water level. If
adjustments are necessary:
1. Verify the ice machine is level (see page 2-4).
2. Remove the siphon cap from the standpipe.
ICE BRIDGE THICKNESS CHECK
The ice thickness probe is factory-set to maintain th e ice
bridge thickness at 1/8" (3.2 mm).
1. Inspect the bridge connecting the cubes. It should
be about 1/8" (3.2 mm) thick.
2. If adjustment is necessary, turn the ice thickness
probe adjustment screw clockwise to increase
bridge thickness, or counterclockwise to decrease
bridge thickness.
NOTE: Turning the adjustment 1/3 of a turn will change
the ice thickness about 1/16" (1.5 mm).
3. Place the main ON/OFF/WASH toggle switch to the
ON position, and wait until the float valve stops
adding water.
4. Adjust the water level to (1/4" to 3/8" (6.3 to 9.5 mm)
below the standpipe) the line in the water tr ough:
5. Loosen the two screws on the float valve bracket.
6. Raise or lower the float valve assembly as
necessary, then tighten the screws.
7. Move the main ON/OFF/ WASH toggle switch to the
OFF position. The water level in the trough will rise
above the standpipe and run down the drain.
8. Replace the siphon cap on the standpipe, and verify
water level and siphon action by repeating steps 3
through 5.
Ice Thickness Check
Make sure the ice thickness probe wire and the brac ket
do not restrict movement of the probe.
Part Number 040001358 05/10 13
Section 4
!
Caution
!
Caution
!
Warning
!
Caution
!
Warning
DO NOT SOAK
WATER PUMP MOTOR IN
CLEANER OR SANITIZER
SOLUTIONS
When Used - REMOVE
THUMBSCREWS AND
WATER PUMP COVER
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.
Wear rubber gloves and safety goggles ( an d/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 3 T o st art a cleaning cycle, move the toggle switch
to the WASH position.
Step 4 Add the proper amount of Manitowoc Ice
Machine Cleaner to the water trough.
Model Amount of Cleaner
Q130 1 ounce (30 ml)
Q170 2 ounces (60 ml)
Q210 2 ounces (60 ml)
Q270 2 ounces (60 ml)
Step 5 Wait until the clean cycle is complete
(approximately 22 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 T wo Thumbscrews a nd W ater Pump
Cover (When Used).
B. Remove the Vinyl Hose Connecting the
Water Pump and Water Distribution Tube
C. Remove Water Pump
• Disconnect the water pump power cord
• Loosen the screws securing the pumpmounting bracket to the bulkhead
• Lift the pump and bracket assembly off the
mounting screws..
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.
Water Pump Removal
14 Part Number 040001358 05/10
Section 4 Maintenance
ICE THICKNESS
PROBE
COMPRESS SIDES OF ICE
THICKNESS PROBE
!
Caution
1. LIFT UP
2. SLIDE BACK
3. SLIDE TO RIGHT
DISTRIBUTION
TUBE
THUMBSCREW
THUMBSCREW
LOCATING
PIN
3
2
1
INNER TUBE
TAB
KEYWAY
INNER TUBE
D. Remove the Ice Thickness Probe
• Compress the side of the ice thickness probe
near the top hinge pin and remove it from the
bracket.
Ice Thickness Probe Removal
NOTE: At this point, the ice thickness probe can easily
be cleaned. If complete removal is desired follow the ice
thickness probe wire to the bulkhead grommet (exit
point) in the back wall. Pop the bulkhead grommet out of
the back wall by inserting fingernails or a flat object
between the back wall and the grommet and prying
forward. Pull the bulkhead grommet and wire forward
until the connector is accessible, then disconnect the
wire lead from the connector.
Ice Thickness Probe Cleaning
• Mix a solution of Manitowoc ice machine cleaner and
water (2 ounces of cleaner to 16 ounces of water) in
a container.
• Soak the ice thickness probe a minimum of 10
minutes.
Clean all ice thickness probe surfaces and verify the ice
thickness probe cavity is clean. Rinse thoroughly with
clean water , then d ry completely. Incomplete rinsing and
drying of the ice thickness probe can cause prema tur e
harvest.
E. Remove the Water Distribution Tube
Q170/Q210/Q270 Models
Q170/Q210/Q270 Water Distribution Tube Removal
• Loosen the two thumbscrews, which secure the
distribution tube.
• Lift the right side of the distribution tube up off the
locating pin, then slide it back and to the right.
Do not force this removal. Be sure the locating pin is
clear of the hole before sliding the distribution tube
out.
Disassembly
• Twist both of the inner tube ends until the tabs line up
with the keyways.
• Pull the inner tube ends outward.
Part Number 040001358 05/10 15
Q170/Q210/Q270 Water Distribution Tube
Disassembly
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