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Section 4 Maintenance
Part Number 000006520 Rev 03 12/19 23
Detailed Descaling and Sanitizing Procedure
Ice machines that are heavily scaled or have not been cleaned on a regular basis will need to run this procedure.
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.
CLEANING PROCEDURE
Ice machine cleaner/descaler 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.
Step 2 Remove top cover. This will allow easiest
access for adding descaling and sanitizing solutions.
Step 3 Remove all ice from the bin.
Step 4 Place the toggle switch in the CLEAN position.
The water will flow through the water dump valve and
down the drain. Wait until the water trough refills and
water flows over the evaporator, then add the proper
amount of ice machine cleaner.
Step 5 Wait until the clean cycle is complete
(approximately *35 minutes). Then place the toggle
switch in the OFF position and disconnect power to the
ice machine (and dispenser when used).
NOTE: *S3300/ST3000 Only - 80 minutes.
Step 6 Remove parts for cleaning.
Please refer to the proper parts removal for your ice
machine.
Single Evaporator Ice Machines - Page 26
Multiple Evaporator Ice Machines - Page 27
!
Caution
Use only Manitowoc approved Ice Machine Cleaner/
Descaler and Sanitizer for this application
(Manitowoc Cleaner part number 94-0546-3 and
Manitowoc 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
!
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 or
Sanitizer.
!
Caution
Never use anything to force ice from the evaporator.
Damage may result.
Model
Amount of
Cleaner/Descaler
S300/S320/S420 3 ounces (90 ml)
S450/S500/S600/S850/
S1000/S1200
5 ounces (150 ml)
S1400/S1600/S1800 9 ounces (265 ml)
S3300/ST3000 16 ounces (475 ml)
!
Warning
Disconnect the electric power to the ice machine at
the electric service switch box.
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