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Manitowoc Remote Ice Cube Machine Every Six Months Maintenance

The Remote Ice Cube Machine Preventive Maintenance form has a list for inspection and a set of general rules or maintenance. It also has a detailed list for exterior cleaning and products we are not to use during cleaning.

MaintainX

04/26/2021

Manitowoc Remote Ice Cube Machine Every Six Months Maintenance

Descaling and Sanitizing

General

You are responsible for maintaining the ice machine in accordance with the instructions in this manual. Maintenance procedures are not covered by the warranty.

Descale and sanitize the ice machine every six months for efficient operation.

If the ice machine requires more frequent descaling and sanitizing, consult a qualified service company to test the water quality and recommend appropriate water treatment.

An extremely dirty ice machine must be taken apart for descaling and sanitizing.

Manitowoc Ice Machine Cleaner/Descaler and Sanitizer are the only products approved for use in Manitowoc ice machines.

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.

Exterior Cleaning

Clean the area around the ice machine as often as necessary to maintain cleanliness and efficient operation.

Wipe surfaces with a damp cloth rinsed in water to remove dust and dirt from the outside of the ice machine.

If a greasy residue persists, use a damp cloth rinsed in a mild dish soap and water solution. Wipe dry with a clean, soft cloth.

The exterior panels have a clear coating that is stain resistant and easy to clean.

Products containing abrasives will damage the coating and scratch the panels.

Never use steel wool or abrasive pads for cleaning.

Never use chlorinated, citrus based or abrasive cleaners on exterior panels and plastic trim pieces.

Remedial Cleaning Procedure

This procedure descales all components in the water flow path, and is used between the bi-yearly detailed descaling and sanitizing procedure.

Detailed Descaling/Sanitizing Procedure

This procedure must be performed a minimum of once every six months.

The ice machine and bin must be disassembled descaled and sanitized.

All ice produced during the descaling and sanitizing procedures must be discarded.

Caution: Use only Manitowoc approved Ice Machine Cleaner/De-scaler and Sanitizer for this application (Manitowoc Cleaner/De-scaler part number 9405463 and Manitowoc Sanitizer part number 9405653). It is a violation of Federal law to use these solutions in

Detailed Descaling and Sanitizing Procedure

Ice machine cleaner/de-scaler is used to remove lime scale and mineral deposits.

Ice machine sanitizer disinfects and removes algae and slime.

NOTE: Although not required and dependent on your installation, removing the ice machine top cover may allow easier access.

Step 1 Open the front door to access the evaporator compartment. Ice must not be on the evaporator during the descaling/ sanitize cycle.

Follow one of the methods below:

Press the power switch at the end of a harvest cycle after ice falls from the evaporator(s).

Press the power switch and allow the ice to melt.

Notice: Never use anything to force ice from the evaporator. Damage may result.

Step 2 Remove all ice from the bin/ dispenser.

Step 3 Press the Clean button and select “Turn off when complete”. Water will flow through the water dump valve and down the drain. Wait approximately 1 minute until the water trough refills and the display indicates Add Chemical.

Add the proper amount of ice machine cleaner/descaler to the water trough by pouring between the water curtain and evaporator, then confirm the chemical was added.

Caution: Do not mix Cleaner/Descaler 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/Descaler or Sanitizer.

Step 4 Wait until the cycle is complete (approximately 24 minutes). Then disconnect power to the ice machine (and dispenser when used).

Warning :Disconnect the electric power to the ice machine at the electric service switch box.

Step 5 Remove parts for descaling. Refer to parts removal page 46. Continue with Step 6 when the parts have been removed.

Step 6 Mix a solution of cleaner/descaler and lukewarm water. Depending upon 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 descale all parts.

Step 7 Use half of the cleaner/descaler & water mixture to descale all components. The solution will foam when it contacts lime scale and mineral deposits; once the foaming stops, use a soft-bristle nylon brush, sponge or cloth (NOT a wire brush) to caref

Soak parts for 5 minutes (15 - 20 minutes for heavily scaled parts). Rinse all components with clean water.

Step 8 While components are soaking, use half of the solution to descale all food zone surfaces of the ice machine and bin (or dispenser).

Use a nylon brush or cloth to thoroughly descale the following ice machine areas:

Side walls

Base (area above water trough)

Evaporator plastic parts - including top, bottom and sides

Bin or dispenser

Rinse all areas thoroughly with clean water.

SANITIZING PROCEDURE

Step 9 Mix a solution of sanitizer and lukewarm water.

Step 10 Use half of the sanitizer/ water solution to sanitize all removed components. Use a spray bottle 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 aft

Step 11 Use half of the sanitizer/water solution to sanitize all food zone surfaces of the ice machine and bin (or dispenser). Use a spray bottle to liberally apply the solution.

When sanitizing, pay particular attention to the following areas:

Side walls

Base (area above water trough)

Evaporator plastic parts - including top, bottom and sides

Bin or dispenser

Do not rinse the sanitized areas.

Step 12 Replace all removed components and wait 20 minutes.

Step 13 Press the Clean button and select “Make ice when complete”. Water will flow through the water dump valve and down the drain. Wait approximately 1 minute until the water trough refills and the display indicates Add Chemical.

Add the proper amount of ice machine sanitizer to the water trough by pouring between the water curtain and evaporator, then confirm the chemical was added.

Step 14 Close and secure the front door. The ice machine will automatically start ice making after the sanitize cycle is complete (approximately 24 minutes).

Parts Removal for Detailed Descaling and Sanitizing

Single evaporator is shown; Each evaporator will have a distribution tube and water curtain/damper.

A. Remove the water curtain(s)

Gently flex the curtain in the center and remove it from the right side.

Slide the left pin out.

B. Remove the ice thickness probe

Compress the hinge pin on the top of the ice thickness probe.

Pivot the ice thickness probe to disengage one pin then the other. The ice thickness probe can be descaled and sanitized at this point without complete removal.

If complete removal is desired, disconnect the ice thickness control wiring from the control board.

C. Remove the water trough

Depress tabs on right and left side of the water trough.

Allow front of water trough to drop as you pull forward to disengage the rear pins.

D. Remove the water level probe

Pull the water level probe straight down to disengage.

Lower the water level probe until the wiring connector is visible.

Disconnect the wire lead from the water level probe

Remove the water level probe from the ice machine.

E. Remove the water distribution tube(s)

NOTE: Thumbscrews for the distribution tube are retained to prevent loss. Loosen thumbscrews, but do not pull thumbscrews out of distribution tube.

Loosen the two outer screws (do not remove screws completely because they are retained to prevent loss) and pull forward on the distribution tube to release from slip joint.

Disassemble distribution tube by loosening the two (2) middle thumbscrews and dividing the distribution tube into two pieces.

Remedial Cleaning Procedure

This procedure descales all components in the water flow path, and is used to descale the ice machine between the bi-yearly detailed descaling and sanitizing procedure.

Ice machine cleaner/descaler is used to remove lime scale and mineral deposits. Ice machine sanitizer disinfects and removes algae and slime.

NOTE: Although not required and dependent on your installation, removing the ice machine top cover may allow easier access.

Step 1 Ice must not be on the evaporator during the clean/sanitize cycle.

Follow one of the methods below:

Press the power switch at the end of a harvest cycle after ice falls from the evaporator(s).

Press the power switch and allow the ice to melt.

Notice: Never use anything to force ice from the evaporator. Damage may result.

Step 2 Open the front door to access the evaporator.

Step 3 Press the Clean button and select “Make ice when complete”. Water will flow through the water dump valve and down the drain. Wait approximately 1 minute until the water trough refills and the display indicates Add Chemical.

Add the proper amount of ice machine descaler to the water trough by pouring between the water curtain and evaporator, then confirm the chemical was added.

Step 4 Close and secure the front door. The ice machine will automatically start ice-making after the clean cycle is complete (approximately 24 minutes).

Cleaning the Air Filter and Condenser

The washable filter on self-contained ice machines is designed to catch dust, dirt, lint and grease.

Clean the filter once a month with mild soap and water.

A dirty condenser restricts airflow, resulting in excessively high operating temperatures. This reduces ice production and shortens component life.

Warning: Disconnect electric power to the ice machine at the electric service switch before cleaning the air filter or the condenser. The condenser fins are sharp; Use care when removing or installing the air filter.

Clean the condenser at least every six months.

Shine a flashlight through the condenser to check for dirt between the fins.

Blow compressed air or rinse with water from the inside out (opposite direction of airflow).

If dirt still remains, call a service agent to clean the condenser.

Removal from Service/Winterization

All Models

Descale and sanitize the ice machine.

Turn off the water supply, disconnect and drain the incoming ice-making water line at the rear of the ice machine and drain the water trough.

Energize the ice machine, wait one minute for the water inlet valve to open and blow compressed air in both the incoming water and the drain openings in the rear of the ice machine to remove all water.

WATER-COOLED MODELS ONLY

Disconnect the incoming water and drain lines from the water-cooled condenser.

Insert a large screwdriver between the bottom spring coils of the water regulating valve and pry open the Water Regulating Valve.

Hold the valve open and blow compressed air through the condenser until no water remains.

All Models

Press the power switch and disconnect electrical power at the main disconnect/circuit breaker

Fill spray bottle with sanitizer and spray all interior food zone surfaces. Do not rinse and allow to air dry.

Replace all panels.

Source: Manitowoc (www.manitowocice.com)

Please note that any procedure, checklist, or other document available in the MaintainX Procedure Hub is provided for general education and information only and does not constitute legal, medical, or financial advice. MaintainX makes the materials available AS IS and AS PROVIDED, without warranties of any kind. By downloading or using any such materials, you assume the risk that they may not be appropriate for your specific situation and agree that you are solely responsible for any such use, including compliance with applicable law and with meeting any conditions of product warranties.

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