Manitowoc Ice UNDERCOUNTER QM30 User Manual

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QM30

UnderCounter Model

Ice Machines

Installation, Use & Care Manual

This manual is updated as new information and models are released. Visit our website for the latest manual. www.manitowocfsg.com

America’s #1 Selling Ice Machine

Part Number 000001772 07/08

Safety Notices

As you work on Manitowoc equipment, be sure to pay close attention to the safety notices in this manual. Disregarding the notices may lead to serious injury and/ or damage to the equipment.

Throughout this manual, you will see the following types of safety notices:

! Warning

Text in a Warning box alerts you to a potential personal injury situation. Be sure to read the Warning statement before proceeding, and work carefully.

! Caution

Text in a Caution box alerts you to a situation in which you could damage the equipment. Be sure to read the Caution statement before proceeding, and work carefully.

Procedural Notices

As you work on Manitowoc equipment, be sure to read the procedural notices in this manual. These notices supply helpful information which may assist you as you work.

Throughout this manual, you will see the following types of procedural notices:

Important

Text in an Important box provides you with information that may help you perform a procedure more efficiently. Disregarding this information will not cause damage or injury, but it may slow you down as you work.

NOTE: Text set off as a Note provides you with simple, but useful, extra information about the procedure you are performing.

Read These Before Proceeding:

! Caution

Proper installation, care and maintenance are essential for maximum performance and troublefree operation of your Manitowoc equipment. Read and understand this manual. It contains valuable care and maintenance information. If you encounter problems not covered by this manual, do not proceed, contact Manitowoc Foodservice Group. We will be happy to provide assistance.

Important

Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty.

! Warning

PERSONAL INJURY POTENTIAL

Do not operate equipment that has been misused, abused, neglected, damaged, or altered/modified from that of original manufactured specifications.

NOTE: SAVE THESE INSTRUCTIONS.

We reserve the right to make product improvements at any time. Specifications and design are subject to change without notice.

Table of Contents

Section 1

General Information

Model/Serial Number Location...................................................................

1-1

Owner Warranty Registration Card ..........................................................

1-2

Section 2

Installation Instructions

General.................................................................................................................

2-1

Dimensions ........................................................................................................

2-1

Location of Ice Machine................................................................................

2-2

Ice Machine Heat of Rejection....................................................................

2-2

Leveling the Ice Machine..............................................................................

2-2

Electrical Service.............................................................................................

2-3

VOLTAGE …………………………………………………………………………

2-3

FUSE/CIRCUIT BREAKER ……………………………………………………

2-3

ELECTRICAL RATING …………………………………………………………

2-3

ELECTRICAL CORD STRAIN RELIEF ………………………………………

2-4

TERMINAL BLOCK WIRE CONNECTION……………………………………

2-4

Water Service/Drains......................................................................................

2-5

WATER SUPPLY…………………………………………………………………

2-5

DRAIN CONNECTIONS …………………………………………………………

2-5

WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS ……………

2-5

Section 3

Operation

Sequence of Operation ...................................................................

3-1

INITIAL START-UPORSTART-UPAFTER AUTOMATICSHUT-OFF……

3-1

Ice Thickness Adjustment ...........................................................................

3-2

Part Number 000001772 07/08

i

Table of Contents (continued)

Section 4

Maintenance

Interior Cleaning and Sanitizing................................................................

4-1

GENERAL ………………………………………………………………………

4-1

CLEANING AND SANITIZING PROCEDURE………………………………

4-1

Exterior Cleaning.............................................................................

4-3

Ice Machine Inspection ...................................................................

4-3

Cleaning The Condenser ................................................................

4-4

Removal from Service/Winterization.......................................................

4-4

Section 5

Before Calling for Service

Checklist .............................................................................................................

5-1

ii

Part Number 000001772 07/08

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

Model/Serial Number Location

Model Number:_____________________

Serial Number:______________________

Part Number 000001772 07/08

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.

COMMERCIAL WARRANTY COVERAGE General

The following Warranty outline is provided for your convenience. For a detailed explanation, read the warranty bond shipped with each product.

Contact your local Manitowoc representative or Manitowoc Ice, Inc. if you need further warranty information.

Parts

Manitowoc warrants the ice machine against defects in materials and workmanship, under normal use and service for there (3) years from the date of original installation.

Labor

Labor required to repair or replace defective components is covered for there (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 this manual.

2.Repairs due to unauthorized modifications to the ice machine or use of non-standardparts without prior written approval from Manitowoc Ice, Inc.

3.Damage caused by improper installation of the ice machine, electrical supply, water supply or drainage, or damage caused by floods, storms, or other acts of God.

4.Premium labor rates due to holidays, overtime, etc.; travel time; flat rate service call charges; mileage and miscellaneous tools and material charges not listed on the payment schedule. Additional labor charges resulting from the inaccessibility of equipment are also excluded.

5.Parts or assemblies subjected to misuse, abuse, neglect or accidents.

6.Damage or problems caused by installation, cleaning and/or maintenance procedures inconsistent with the technical instructions provided in this manual.

AUTHORIZED WARRANTY SERVICE

To comply with the provisions of the warranty, a refrigeration service company, qualified and authorized by your Manitowoc distributor, or a Contracted Service Representative must perform the warranty repair.

NOTE: If the dealer you purchased the ice machine from is not authorized to perform warranty service, contact your Manitowoc distributor or Manitowoc Ice, Inc. for the name of the nearest authorized service representative.

SERVICE CALLS

Normal maintenance, adjustments and cleaning as outlined in this manual are not covered by the warranty. If you have followed the procedures listed in this manual, and the ice machine still does not perform properly, call your authorized service company.

1-2

Part Number 000001772 07/08

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-upin 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. 26th St.,

P.O. Box 1720,

Manitowoc, WI 54221-1720

Telephone: 920-682-0161Fax:920-683-7585www.manitowocice.com

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.

Part Number 000001772 07/08

1-3

General Information

Section 1

 

 

THIS PAGE INTENTIONALLY LEFT BLANK

1-4

Part Number 000001772 07/08

Section 2

Installation Instructions

General

These instructions are provided to assist the qualified installer.

Dimensions

50.00cm

79.00cm

57.00cm

Part Number 000001772 07/08

2-1

Installation Instructions

Section 2

 

 

Location of Ice Machine

The location selected for the ice machine must meet the following criteria. If any of these criteria are not met, select another location.

The location must be indoors.

The location must be free of airborne and other contaminants.

The air temperature must be at least 10°C (50°F), but must not exceed 40°C (110°F).

The location must not be near heat-generatingequipment 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.

 

Self-ContainedAir-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.

! Caution

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.

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 self-containedaircooled ice machines are installed.

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.

Checking for Level

2.If the ice machine is not level, adjust the leveling glides on each corner of the base of the ice machine as necessary.

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.

2-2

Part Number 000001772 07/08

Section 2

Installation Instructions

 

 

Electrical Service

! Warning

All wiring must conform to local, state and national codes.

Voltage Phase

Electrical Rating

 

 

230/50/1

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).

! 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 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 000001772 07/08

2-3

Installation Instructions

Section 2

 

 

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 holder through the opening in the lower right corner of the rear panel of the ice machine.

RETAINING NUT (BEHIND THE PANEL)

CORD

HOLDER

ELECTRICAL

CORD

COMPRESSION

NUT

Strain Relief Installation

3.Hand-tightenthe retaining nut onto the cord holder from inside the ice machine rear panel.

4.Slide the compression nut over the electrical cord.

5.Feed about 1.5 m (5 ft.) of electrical cord through the cord holder. (The extra cord will allow the rear panel to be removed for future service.)

6.Hand-tightenthe compression nut onto the cord holder.

TERMINAL BLOCK WIRE CONNECTION

! Warning

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.

TERMINAL

BLOCK

L1

N

GND

ELECTRICAL

CORD

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.

2-4

Part Number 000001772 07/08

Section 2

Installation Instructions

 

 

Water Service/Drains

WATER SUPPLY

Local water conditions may require treatment of the water to inhibit scale formation, filter sediment, remove chlorine, and improve taste and clarity.

Important

If you are installing a Manitowoc Tri-Liminatorwater 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-offvalve for both the ice making and condenser water lines (if applicable).

Insulate water lines to prevent condensation.

Important

The water inlet line is connected to the water valve. This valve is located just behind the front panel of the ice machine.

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

 

Water

 

Ice Machine

Tubing Size Up to Ice

 

Temperature

 

Pressure

 

Fitting

 

Machine Fitting

 

 

 

 

 

Ice Making

10°C (50°F)Min.1

240 kPA (34.8 psi)Min.1

3/4” male hose

0.95 cm (3/8”) minimum

Water Inlet

°

°

2

620 kPA (89.9 psi)Max.

2

connection

3

inside diameter

30 C (86 F)Max.

 

 

 

 

 

Ice Making/

 

——

 

——

 

1.59 cm (5/8”) inside

1.59 cm (5/8”) minimum

Bin Water

 

 

 

diameter flexible

inside diameter

Drain

 

 

 

 

 

 

hose

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1Min. = Minimum

2Max. = Maximum

3A 3/4” by 11-1/2threads per inch to 14 threads per inch adapter is factory installed. Remove this adapter if11-1/2threads per inch connection is desired.

Part Number 000001772 07/08

2-5

Installation Instructions

Section 2

 

 

OVERFLOW

TUBE

DRAIN

HOLE

ICE MAKING/BIN WATER DRAIN TUBING 1.59 cm (5/8”) MINIMUM INSIDE DIAMETER

ICE MAKING WATER INLET TUBING 0.95 cm (3/8”) MINIMUM INSIDE DIAMETER

Typical Water Supply and Drain Line Sizing and Connections

2-6

Part Number 000001772 07/08

Section 3

Operation

Sequence of Operation

 

 

 

Control Board Relays

 

 

Ice Making Sequence

1

 

2

 

3

 

Length of

 

 

 

of Operation

 

Hot Gas Valve

 

Water Pump

 

Compressor

 

 

 

“ON” Time

 

 

Water Fill Valve

 

Fan Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start-Up*

off

 

on

 

on

 

2.9 Minutes

1.Water Purge

 

 

 

(175 Seconds)

 

 

 

 

 

 

2.Refrigeration

 

 

 

 

 

 

 

on

 

on

 

off

 

5 Seconds

System Start-Up

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.Freeze Cycle

on

 

off

 

on

 

Automatically deter-

 

 

 

 

mined

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.Harvest Cycle

on

 

on

 

off

 

Automatically deter-

 

 

 

 

mined

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.Auto Shut-Off

off

 

off

 

off

 

Until bin thermostat

 

 

 

 

re-closes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Initial Start-UporStart-UpAfter AutomaticShut-Off

 

 

 

 

INITIAL START-UPORSTART-UPAFTER AUTOMATICSHUT-OFF

 

 

 

 

1. Water Purge

 

 

4. harvest cycle

 

 

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.

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-offis 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 and close, restarting the ice machine. When the ice machine restarts, it returns to thestart-upsequence.

Part Number 000001772 07/08

3-1

Operation

Section 3

 

 

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 determine proper slab weight follow the instructions listed below.

A DIMPLE IN

EACH CUBE

CELL IS

NORMAL

ICE BRIDGE SHOULD BE 1.5

MM TO 3.2 MM THICKNESS

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.

! Warning

Do not touch electrical wires. Disconnect power to the ice machine before making any ice thickness adjustments.

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

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

Part Number 000001772 07/08

Section 4

Maintenance

Interior Cleaning and Sanitizing

GENERAL

Clean and sanitize the ice machine every six months for efficient operation. If the ice machine requires more frequent cleaning and sanitizing, consult a qualified service company to test the water quality and recommend appropriate water treatment.

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 number94-0565-3).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

! 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 may result.

step 2 Remove all ice from the bin.

step 3 To start 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.

! Warning

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.

DRAIN

OVERFLOW

TUBE

HOLE

 

Removing the Overflow Tube

B. Remove the Vinyl Hose

Part Number 000001772 07/08

4-1

Maintenance

 

 

Section 4

• Disconnect the water pump discharge hose

• Evaporator plastic parts – including top,

from the distribution tube and water pump.

bottom and sides

 

C. Remove the Water Pump

• Bin bottom, sides and top

 

• Disconnect the water pump power cord.

Rinse all areas thoroughly with clean water.

• Loosen the screws that hold the water pump

step 10 Mix a solution of sanitizer and warm water.

in place.

Solution Type

Water

Mixed With

• Lift the water pump and bracket assembly up

 

 

120 ml (4 ounces)

and off the screws.

Sanitizer

23 L. (6 gal )

sanitizer

 

 

 

SCREWS

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

 

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,

WATER

bottom and sides

 

• Bin bottom, sides and top

 

PUMP

 

Removing the Water Pump

D. Remove the Water Trough

Remove the screws holding the water trough to the walls of the cabinet.

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 gall)

500 ml (16 oz)

cleaner

 

 

 

 

 

Do not rinse the sanitized areas.

step 13 Replace all removed components.

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

 

 

step 16 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.

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 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:

! 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.

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Part Number 000001772 07/08

Section 4

Maintenance

 

 

step 18 Mix a solution of sanitizer and warm water.

Solution Type

Water

Mixed With

 

 

 

Sanitizer

23L. (6 gal )

120 ml (4 oz) san-

itizer

 

 

 

 

 

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:

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.

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.

Part Number 000001772 07/08

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Maintenance

Section 4

 

 

Cleaning The Condenser

! Warning

Disconnect electric power to the ice machine at the electric service switch before cleaning the 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-containedice machines is designed to catch dust, dirt, lint and grease. This helps keep the condenser clean. Clean the filter with a mild soap and water solution.

REMOVE THE

FILTER

Removing the Filter

2.Clean the outside of the condenser with a soft brush or a vacuum with a brush attachment. Clean from top to bottom, not side to side. Be careful not to bend the condenser fins.

3.Shine a flashlight through the condenser to check for dirt between the fins. If dirt remains: Blow compressed air through the condenser fins from the inside. Be careful not to bend the fan blades.

4.Use a commercial condenser coil cleaner. Follow the directions and cautions supplied with the cleaner.

5.Straighten any bent condenser fins with a fin comb.

6.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.

! Caution

If you are cleaning the condenser fan blades with water, cover the fan motor to prevent water damage.

Removal from Service/Winterization

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-makingwater 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.

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Part Number 000001772 07/08