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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

Safety Notices

When using or servicing a Q Model Ice Machine, be sure to pay close attention to the safety notices in this manual. Disregarding the notices may lead to serious injury and/or damage to the ice machine.

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

WARNING

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

CAUTION

Text in a Caution box alerts you to a situation in which you could damage the ice machine. Be sure to read the Caution statement, and then proceed carefully.

Procedural Notices

When using or servicing a Q Model Ice Machine, be sure to read the procedural notices in this manual. These notices supply helpful and important information.

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

Important

Important boxes serve two functions.

They call the operator’s attention to important information.

They also provide the service technician with information that may help perform a procedure more efficiently. Disregarding this information may slow down the work.

NOTE: Text set off as a Note provides you with simple, but useful, extra information.

CAUTION

Proper installation, care and maintenance are essential for maximum ice production and troublefree operation of your Manitowoc Ice Machine.

Read and understand this manual. It contains valuable care and maintenance information. If you encounter problems not covered by this manual, feel free to contact Manitowoc Ice, Inc. We will be happy to provide assistance.

Important

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

 

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

Table of Contents

Page Intentionally Left Blank

ii

Section 1

General Information

Section 1

General Information

Owner Warranty Registration Card

GENERAL

Warranty coverage begins the day your new ice machine is installed.

Important

Complete and mail the OWNER WARRANTY REGISTRATION CARD as soon as possible to validate the installation date.

If you do not return your OWNER WARRANTY REGISTRATION CARD, Manitowoc will use the date of sale to the Manitowoc Distributor as the first day of warranty coverage for your new ice machine.

Warranty Coverage

GENERAL

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

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

Important

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.

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..

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.

7.This product is intended exclusively for commercial application. No warranty is extended for personal, family, or household purposes.

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.

1-1

General Information

Section 1

Page Intentionally Left Blank

1-2

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-upservices.

Important

Failure to follow these installation guidelines may affect warranty coverage.

Ice Machine Dimensions

Q800 ICE MACHINE

WATER COOLED

24.50” 30.00” (62.23 cm)

(76.20 cm)

2.50”

 

 

(6.35 cm)

3.38”

H

 

1.88”

(8.59 cm)

(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

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 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).

The location must not be near heat-generatingequipment or in direct sunlight.

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

5” (127 mm)*

Back

5” (127 mm)*

*There is no minimum clearance required. This value is recommended for efficient operation and servicing only.

Leveling the Ice Storage Bin

1.Screw the leveling legs onto the bottom of the bin.

2.Screw the foot of each leg in as far as possible.

CAUTION

The legs must be screwed in tightly to prevent them from bending.

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.)

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

Section 2

Installation Instructions

Electrical Service

GENERAL

WARNING

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

VOLTAGE

The maximum allowable voltage variation is ± 10% of the rated voltage at ice machinestart-up(when the electrical load is highest).

WARNING

The ice machine must be grounded in accordance with national and local 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).

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.)

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.

Q800 ICE MACHINE

 

Voltage

Water Cooled

Ice

Phase

Maximum

Minimum

Machine

Cycle

Fuse

Circuit

 

 

Circuit

Amps

 

 

Breaker

 

Q800

208-230/1/60

20

11.4

208-230/3/60

15

8.2

 

230/1/50

20

10.6

Electrical Wiring Connections

WARNING

These diagrams are not intended to show proper wire routing, wire sizing, disconnects, etc., only the correct wire connections.

All electrical work, including wire routing and grounding, must conform to local, state and national electrical codes.

Though wire nuts are shown in the drawings, the ice machine field wiring connections may use either wire nuts or screw terminals.

Water Cooled Ice Machine 208-230/1/60

L1

L1

N = 115V

OR

L2 = 208-230V

GROUND

GROUND

ICE MACHINE

TO SEPARATE

CONNECTIONS

FUSE/ BREAKER

SV1258

2-3

Installation Instructions

Section 2

Water Service/Drains

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 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.

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.

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 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-cooledmodels.

CAUTION

Plumbing must conform to applicable codes.

WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS

Location

Water

Water

Ice Machine

Tubing Size Up to Ice

Temperature

Pressure

Fitting

Machine Fitting

 

Ice Making

33°F (0.6°C) Min.

20 psi (137.9 kPA) Min.

3/8” Female

3/8” (9.5 mm)

minimum inside

Water Inlet

90°F (32.2°C)

80 psi (551.5 kPA) Max.

Pipe Thread

diameter

 

Max.

 

 

 

 

 

 

Ice Making

---

---

1/2” Female

1/2” (12.7 mm)

minimum inside

Water Drain

Pipe Thread

 

 

diameter

 

 

 

 

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)

3/8” Female Pipe Thread

 

Max.

Max.

 

 

Condenser

---

---

1/2” Female

1/2” (12.7 mm)

minimum inside

Water Drain

Pipe Thread

 

 

diameter

 

 

 

 

Bin Drain

---

---

3/4” Female

3/4” (19.1 mm)

minimum inside

Pipe Thread

 

 

 

diameter

 

 

 

 

2-4

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

18.00” VENT

INLET TUBING

1/2” MIN. I.D. (1.27 cm)

(45.70 cm)

ICE MAKING WATER

(SEE BELOW)

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

18.00”

VENT

 

 

 

 

(45.70 cm)

 

BIN DRAIN FITTING

 

 

 

3/4” F.P.T (1.91 cm)

 

 

 

BIN DRAIN TUBING

 

OPEN, TRAPPED OR

 

3/4” MIN. I.D. (1.91 cm)

 

VENTED DRAIN

 

SV1626

Typical Water Supply Drain Installation

2-5

Installation Instructions

Section 2

Installation Checklist

Is the ice machine level?

Has all of the internal packing been removed?

Have all of the electrical and water connections been made?

Has the sump trough drain plug been installed?

Has the supply voltage been tested and checked against the rating on the nameplate?

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)?

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-cooledcondenser?

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?

Before Starting the Ice Machine

All Manitowoc ice machines are factory-operatedand adjusted before shipment. Normally, new installations do not require any adjustment.

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.

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

WARNING

PERSONNEL INJURY POTENTIAL

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

2-6

Section 3

Ice Machine Operation

Section 3

Ice Machine Operation

Component Identification

HOT GAS

VALVE

WATER DUMP

VALVE

DRAIN HOSE

WATER INLET

VALVE

DISTRIBUTION

TUBE

WATER CURTAIN

 

CONDENSER

 

WATER

 

REGULATING VALVE

COMPRESSOR

WATER

CONDENSER

 

 

SV1604

ICE THICKNESS

EVAPORATOR

PROBE

ICE/OFF/CLEAN

SWITCH

FLOW CLAMP

USED ON

REGULAR SIZE

CUBE ONLY

WATER FLOAT

VALVE

WATER PUMP

WATER TROUGH

SV1605

3-1

Ice Machine Operation

Section 3

Ice Making Sequence of Operation

Initial Start-UpOrStart-UpAfter AutomaticShut-Off

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-makingcycle starts with fresh water.

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.

2. Refrigeration System Start-Up

The compressor starts after the 45-secondwater purge, and remains on throughout the entire Freeze and Harvest Sequences. The hot gas valve remains on for 5 seconds during initial compressorstart-upand then shuts off.

At the same time the compressor starts, the condenser fan motor (air-cooledmodels) 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.)

FREEZE SEQUENCE 3. Prechill

The compressor is on for 30 seconds prior to water flow to prechill the evaporator.

4. Freeze

The water pump restarts after the 30-secondprechill. 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-minutefreeze lock has been surpassed.

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.

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 also opens at the beginning of the water purge to divert hot refrigerant gas into the evaporator.

6. Harvest

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.

The momentary opening and re-closingof the bin switch terminates the harvest sequence and returns the ice machine to the Freeze Sequence (steps 3 - 4).

AUTOMATIC SHUT-OFF7. AutomaticShut-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.

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-closesand the ice machine restarts (steps 1 - 2), provided the3-minutedelay period is complete.

3-2

Section 3

Ice Machine Operation

Operational Checks

GENERAL

Your Manitowoc ice machine was factory-operatedand adjusted before shipment. Normally, a newly installed 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.

WATER LEVEL CHECK

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”(3-12.5mm) above the water pump impeller housing.

WATER

PUMP

PUMP

OUTLET

WATER LEVEL

WATER PUMP

IMPELLER

1/8”-1/2”ABOVE

HOUSING

HOUSING

 

SV1331

Water Level Check

2.The float valve is factory-setfor the proper water level. If adjustments are necessary:

A.Loosen the two screws on the float valve bracket.

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-setto maintain an ice bridge of 1/8 inch (3.2mm). If an adjustment is needed, follow the steps below.

1.Turn the ice thickness probe adjustment screw clockwise for a thicker ice bridge, or counterclockwise for a thinner ice bridge.

IMPORTANT

It is normal for cubes to have a slight dimple. This is a normal characteristic associated with Manitowoc’s unique shape.

ADJUSTING

SCREW

1/8” ICE

SV1208

THICKNESS

Ice Thickness Adjustment

2.Make sure the ice thickness probe wire and bracket do not restrict movement of the probe.

3-3

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-ionizedwater treatment system.

Important

The harvest sequence water purge is factory-setat 45 seconds. A shorter purge setting is not recommended. This can increase water system cleaning and sanitizing requirements.

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-energizesby 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.

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.

CONTROL

WATER PURGE

BOARD

ADJUSTMENT

30 45

15

SV1617

Water Purge Adjustment

3-4

Section 4

Maintenance

Section 4

Maintenance

WATER-COOLEDCONDENSER AND WATER REGULATING VALVE

The water-cooledcondenser andwater-regulatingvalve may require cleaning due to scalebuild-up.

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.

MANITOWOC’S PATENTED CLEANING OR SANITIZING TECHNOLOGY

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.

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

Maintenance

Section 4

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 or installation of the AuCS® accessory (Automatic Cleaning System). If required, an extremely dirty ice machine may 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.

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.

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.

CAUTION

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.

Step 4 Add the proper amount of Manitowoc Ice Machine Cleaner to the water trough.

Model

Amount of Cleaner

Q800

5 ounces (150 ml)

Step 5 The ice machine will automatically time out aten-minutecleaning 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.

NOTE: Periodic cleaning must be performed on adjacent surface areas not contacted by the water distribution system.

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.

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

Section 4

Maintenance

Sanitizing Procedure

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 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 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 ounces (90 ml)

Step 5 The ice machine will automatically time out aten-minutesanitizing 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.

Step 6 When the sanitizing process stops, move the toggle switch to the ICE position to start making ice again.

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.

C.When the sanitizing cycle is completed, the clean light will turn off and a ice making sequence will start automatically.

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.

4-3

Maintenance

Section 4

REMOVAL OF PARTS FOR
CLEANING OR SANITIZING

1.Turn off the water supply to the ice machine at the water service valve.

WARNING

Disconnect electric power to the ice machine at the electric switch box before proceeding.

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.

WARNING

Wear rubber gloves and safety goggles (and/or face shield) when handling Ice Machine Cleaner or Sanitizer.

1.Soak the removed part(s) in a properly mixed solution.

Solution Type

Water

Mixed With

Cleaner

1 gal. (4 l)

16 oz (500 ml) cleaner

Sanitizer

4 gal. (15 l)

1 oz (30 ml) sanitizer

4.Use a soft-bristlebrush or sponge (NOT a wire brush) to carefully clean the parts.

CAUTION

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.

CAUTION

Do not immerse the water pump motor in the cleaning or sanitizing solution.

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.

6.Thoroughly rinse all of the parts and surfaces with clean water.

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.

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