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Section 7 Refrigeration System
Part Number 80-1559-3 7-27
FILTER-DRIERS
The filter-driers used on Manitowoc ice machines are
manufactured to Manitowoc specifications.
The difference between Manitowoc driers and off-the-
shelf driers is in filtration. Manitowoc driers have dirt-
retaining filtration, with fiberglass filters on both the inlet
and outlet ends. This is very important because ice
machines have a back-flushing action which takes place
during every harvest cycle.
These filter-driers have a very high moisture removal
capability and a good acid removal capability.
The size of the filter-drier is important. The refrigerant
charge is critical. Using an improperly sized filter-drier
will cause the ice machine to be improperly charged with
refrigerant.
Listed below are the recommended O.E.M. field
replacement driers:
TOTAL SYSTEM REFRIGERANT CHARGES
NOTE: All ice machines on this list are charged using
R-404A refrigerant.
Additional Refrigerant Charges
For line sets between 50’ - 100’.
Model
Drier
Size
End
Connection
Size
Part
Number
Self-Contained
Water Cooled
UK-032S 1/4" 89-3025-9
Suction Filter
UK-165S 5/8" 89-3028-3
Suction Filter used when cleaning up severely contaminated systems
Important
Driers are covered as a warranty part. The drier
must be replaced any time the system is opened for
repairs.
Important
This information is for reference only. Refer to the
ice machine serial number tag to verify the system
charge. Serial plate information overrides
information listed on this page.
Series Version Charge
S1000M
Water-Cooled 38 oz.
Series
Nameplate
Charge
Refrigerant
to be added
for 50’ - 100’
line sets
Maximum
System Charge
Never Exceed
S1000M
8.5 lb.
(136 oz.)
2 lb.
(32 oz.)
10.5 lb.
(168 oz.)