Refrigerant Recovery/Evacuation/Charging Procedures; Liquid Line Filter-Driers; Total System Refrigerant Charge - Manitowoc I0320 Technician's Handbook

REFRIGERANT RECOVERY/EVACUATION/
CHARGING PROCEDURES
Requirements and procedures vary by location. Follow
your local laws governing the recovery, evacuation
and charging of equipment that contains propane
refrigerant.

LIQUID LINE FILTER-DRIERS

The filter-driers used on Manitowoc ice machines are
manufactured to Manitowoc specifications.
The difference between a Manitowoc drier and an off-
the-shelf drier is in filtration. A Manitowoc drier has
dirt-retaining filtration, with filters on both the inlet and
outlet ends. This is very important because ice
machines have a back-flushing action that takes place
during every Harvest cycle.
A Manitowoc filter-drier has high moisture and 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.
Driers are covered as a warranty part. The drier
must be replaced any time the system is opened for
repairs.

TOTAL SYSTEM REFRIGERANT CHARGE

NOTE: All machines listed use R-290 refrigerant - 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 these pages.
Model
166
Important
I0320
I0500
Air Cooled
Data Not Available At This Time
140 grams
Part Number STH038 5/12