In Place Descaling/Sanitizing Procedure - Manitowoc SM Serie Manual De Instalación, Operación Y Mantenimiento

Maintenance

In Place Descaling/Sanitizing Procedure

This procedure allows monthly in place descaling of all
surfaces that come in contact with the water system. The
ice machine requires disassembly and descaling/sanitizing
a minimum of once every 12 months. The quality of your
potable water supply may require more frequent descaling
intervals.
Use ice machine descaler to remove lime scale or other
mineral deposits. Ice machine sanitizer disinfects and
removes algae and slime.
NOTE: All ice must be removed from the bin.
Step 1 Prepare 4 oz (1/2 cup) of undiluted Manitowoc
Ice Machine Descaler (part number 000000084 only) in a
container that will fit easily under the lifted water shutters.
Refer to "Component Identification" on page 17 to identify
the water shutters.
Model
SM50
Step 2 Press the clean switch. The ice machine will initiate
a 2 minute harvest to remove any remaining ice from the
evaporator.
Step 3 Remove all ice from the bin.
Step 4 Wait 3 minutes until the Clean light flashes, then
add the prepared Manitowoc Descaler by lifting the water
shutters and pouring directly into the spray area.
Step 5 The ice machine will automatically time out a ten
minute descaling cycle, followed by eight rinse cycles, and
stop. The Clean light will turn off to indicate the cycle is
complete. This entire cycle lasts approximately 30 minutes.
Step 6 Prepare 1/2 oz (1 tablespoon) of undiluted
Manitowoc Ice Machine Sanitizer (part number 9405653
only) in a container that will fit into the same area.
Model
SM50
22
Amount of Descaler
4 ounces (120 ml)
Amount of Sanitizer
1/2 Ounce (15ml)
Step 7 Press the Clean switch. Wait 3 minutes until the
Clean light flashes, then add the prepared Manitowoc
Sanitizer by lifting the water shutters and pouring directly
into the spray area. The ice machine will automatically time
out a ten minute sanitizing cycle, followed by eight rinse
cycles, and stop. The Clean light will turn off to indicate
the sanitizing cycle is complete. This entire cycle lasts
approximately 30 minutes.
NOTE: The ice machine will automatically continue from the
previous point before the cycle was initiated.
A. If the ice machine was in the ice making cycle, the
control board will start ice making again.
B. If the ice machine was in the off cycle, the control
board will turn off.
Step 8 Step 8 Mix a solution of 1/4 oz. (7.4 ml) of sanitizer
and 1/2 gallon (1.9 L) of water. Use a spray bottle, sponge or
cloth to sanitize the bin. Rinsing is not required
Part Number 000001590 Rev05 07/22
Section 4