Sub-Zero PRO 48 Use & Care Manual page 11

PRO 48 Use & Care
Water Filtration System
WATER FILTER CARTRIDGE REPLACEMENT
1) Lift the top grille assembly to access the water filter
cartridge. To lift the grille, pull out on the bottom edge
of the grille and tilt the grille frame forward. Refer to the
illustration below.
2) Slowly rotate the water filter cartridge one-quarter turn
counterclockwise to disengage. Gently twist until the
cartridge is free from the base. DO NOT pull. There will
be water in the filter cartridge, so it is normal for a
small amount of water to spill out. Refer to the illustra-
tion below.
3) Remove the cap from the replacement water filter
cartridge.
4) Line up the cartridge so that the locking tabs can be
inserted into the filter head.
5) Rotate the filter cartridge into the base approximately
one-quarter turn clockwise until it stops. DO NOT
overtighten.
6) After the new filter cartridge is installed, the first full
bucket of ice produced should be discarded. This will
help clean the water system and clear air from the line.
Allow 24 hours before discarding the first bucket of ice.
Lift grille assembly.
WATER FILTER
Water filter removal.
WATER FILTER BYPASS MODE
If you choose not to use the water filtration system, the
system can be placed in water filter bypass mode by
removing the water filter cartridge. In this mode, the water
supplied to the ice maker will not be filtered and the water
filter monitor will be deactivated.
The water filtration system automatically goes into bypass
mode when the filter cartridge is removed. Once a filter
cartridge is reinstalled, the water filtration system will be
activated and the water filter monitor function will resume.
IMPORTANT NOTE: If a reverse osmosis system is used,
the water filter cartridge must be removed to put the water
filtration system into bypass mode.
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