26 Part Number 000015432 4/18
Manitowoc’s Cleaning Technology
Manitowoc CNF201 - CNF202 Ice Machines allow the
initiation and completion of a cleaning cycle at the flip
of a switch. This cycle will permit cleaning of all surfaces
that come in contact with the water distribution system.
Periodic maintenance must be performed that includes
sanitizing the bin and adjacent surface areas, which are not
contacted by the water distribution system.
Depending on local water conditions Manitowoc
recommends initiating preventative maintenance
cleaning procedures between the 6-month cleanings. This
preventive maintenance removes mineral build-up from
the evaporator, which results in peak efficiency and lower
operating costs.
This technology allows initiation and completion of a clean
cycle, after which the ice machine automatically starts ice
making again.
There are three separate cleaning procedures.
Heavily Scaled Cleaning Procedure
Perform this procedure if you have some or all of these
symptoms.
• Grinding, popping or squealing noises from the
evaporator.
• Grinding noise from gearbox.
• Ice machine trips speed sensor.
A Cleaning/Sanitizing Procedure must be performed after
this procedure.
Cleaning/Sanitizing Procedure
This procedure must be performed a minimum of once
every six months:
• All ice must be removed from the bin/dispenser.
• The ice machine and bin/dispenser must be
disassembled, cleaned and sanitized.
• The ice machine produces ice with the cleaner and
sanitizer solutions.
• All ice produced during the cleaning and sanitizing
procedure must be discarded.
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