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Maintenance Section 4
4-2
Part Number 80-1633-3
Guardian™
Slime is a leading cause of ice machine breakdowns and biological growth is a health concern. The Guardian™
system releases chlorine dioxide on a controlled basis to inhibit the growth of bacteria and fungi that form slime and
cause malodors in the food zone of ice machines. The Guardian™ will not control mineral or other water borne
buildup. Your water quality will determine the length of time before mineral buildup affects ice machine performance.
Mineral buildup must be removed as often as necessary to ensure trouble-free operation of the ice machine.
INSTALLATION
If the Guardian system has been ordered, install the
sachet holder in the inside of the front panel.
1. Remove front panel screws and lift panel off.
Screw Location
2. Inside the front panel there are two thumbscrew
holes covered by stickers, pierce the sticker with a
screwdriver.
3. Attach the sachet holder to the front panel by
inserting the thumbsrews through the holes in the
sachet holder and tightening the thumbscrews
4. Remove the new sachet packet from foil package
and install into holder. Removing the foil package
allows moisture in the air to activate the sachet
contents.
5. Close the left front door and tighten the screw.
Guardian™ Location
SACHET REPLACEMENT FREQUENCY
Sachet packet(s) require replacement every thirty (30)
days or whenever they come in direct contact with water.
Refer to chart below for requirements.
Guardian™ sachet packets are available through your
local Manitowoc ice machine dealer.
SACHET REPLACEMENT PROCEDURE
1. Loosen the left screw and open the left front door.
The right front panel does not need to be removed.
2. Remove and discard spent Guardian sachet
packets.
3. Remove the new sachet packet from foil package
and install into holder. Removing the foil package
allows moisture in the air to activate the sachet
contents.
4. Close the left front door and tighten the screw.
5. Discard the use sachet packet in the trash.
CLEAN UP PROCEDURE FOR DAMAGED PACKET
1. Remove all ice from bin/dispenser and discard.
2. Initiate a cleaning and sanitizing sequence on the
ice machine (see next pages).
3. Clean the bin/dispenser. Flush the drain thoroughly
to prevent future drain blockage.
4. Sanitize the bin/dispenser.
5. Install a replacement sachet packet and reinstall all
panels.
Remove
Screws
Guardian
Inside Left
Front Door
Ice Machine Sachet Use
S1800M 1 or 2*
*Although one sachet is recommended, extreme conditions may
necessitate using two sachet packets.