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Section 4 Maintenance
Part Number 80-1620-3 4-3
Guardianf
Slime is a leading cause of ice machine breakdowns and
biological growth is a health concern. The Guardianf
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 Guardianf 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.
The Guardianf sachet holder is included with the sachet
packets. Refer to installation/replacement procedure to
install/change sachet holder/ packet.
Guardianf Location
GUARDIANf 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.
Guardianf sachet packets are available through your
local Manitowoc ice machine dealer.
SACHET INSTALLATION/REPLACEMENT
PROCEDURE
1. Loosen the left screw and open the left front door.
The right front panel does not need to be removed.
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 thumbscrews through the holes in the
sachet holder and tighten 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.
6. Discard the used sachet packet in the trash.
CLEAN UP PROCEDURE FOR DAMAGED SACHET
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.
Ice Machine Sachet Use
S300/S320/S420/S450/S500/S600 1
S850/S1000/S1200/S1400/S1600/S1800 1 or 2*
*Although one sachet is recommended, extreme conditions may
necessitate using two sachet packets.
Guardian
Inside Left
Front Door
Loosen
Screw