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Part Number: 000015430 Rev 02 5/20 97
Ice Machine has a Long Freeze Cycle
Ice Formation is Thick
or
Thin on Inlet or Outlet of Evaporator
or
Low Production
How to Use the Freeze Cycle Refrigeration System
Operational Analysis Table
GENERAL
These tables must be used with charts, checklists and
other references to eliminate refrigeration components
not listed on the tables and external items and problems
which can cause good refrigeration components to appear
defective.
The tables list five different defects that may affect the ice
machine’s operation.
NOTE: A low-on-charge ice machine and a starving
expansion valve have very similar characteristics and are
listed under the same column.
NOTE: Before starting, see “Before Beginning Service” for
a few questions to ask when talking to the ice machine
owner.
PROCEDURE
Step 1 Complete the “Operation Analysis” column.
Read down the left “Operational Analysis” column.
Perform all procedures and check all information listed.
Each item in this column has supporting reference material
to help analyze each step.
While analyzing each item separately, you may find an
“external problem” causing a good refrigerant component
to appear bad. Correct problems as they are found. If
the operational problem is found, it is not necessary to
complete the remaining procedures.
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