Service manual

Section 4 Maintenance
4-9
Water Treatment/Filtration
GENERAL
Local water conditions may require the installation
of a water treatment system to inhibit scale
formation, filter out sediment, remove chlorine, and
improve taste and clarity. Consult your local
distributor for information on Manitowoc’s full line
of NSF

-certified Tri-Liminator

filtration systems.
FILTER REPLACEMENT PROCEDURE
Tri-Liminator

systems include a pre-filter and a
primary filter. For maximum filtration efficiency,
replace the primary filter cartridge every six
months. If the filter gauge reading drops below 20
psig prior to six months usage, replace the pre-filter
first.
1. Turn off the water supply at the inlet shutoff
valve.
Typical Tri-Liminator



Water Filtration System
2. Depress the pressure release button to relieve
the pressure.
3. Unscrew the housing from the cap.
4. Remove the used filter cartridge from the
housing and discard it.
5. Remove the O-ring from the housing groove.
Wipe the housing groove and the O-ring clean.
6. Lubricate the O-ring with petroleum jelly.
7. Press the O-ring into the housing groove.
8. Insert a new filter cartridge into the housing.
Make sure it slips down over the housing
standpipe.
9. Screw the housing on to the cap and carefully
hand-tighten it.
CAUTION
Hand-tighten only. Do not overtighten. Do not use
a spanner wrench.
10. Repeat steps 3-9 for each filter housing.
11. Turn on the water supply to allow the housing
and filter to slowly fill with water.
12. Depress the pressure release button to release
trapped air from the housing.
13. Check for leaks.
SEAL
O-RING
CARTRIDGE
CAP
SHUT OFF
VALVE
PRESSURE
RELEASE
BUTTON
INLET
SIDE
OUTLET
SIDE
SEAL
HOUSING
PRE-FILTER
PRIMARY
FILTER