2202MYJE-MY-C8-N_2018.02.
Chapter 5 Maintenance and Inspection
Compound 2-stage Screw Compressor 3225**C 5.2 Maintenance and Inspection List
5-6
5.2.3 Guidelines for the Timing of Compressor Overhaul
While the overhaul interval for the compressor depends heavily on the conditions of use, type and
condition of the refrigerant and oil, the package unit, and other factors, the table below shows the
recommended interval of overhaul, as a guideline.
Table 5-4 Guidelines for the Timing of Overhaul Based on the Conditions of Use
(standard package)
Category of Operating Condition
Guideline for the overhaul
timing
Relatively stable operating condition
Cold storage and
refrigeration
Every 5 years or 40,000
operating hours
Relatively variable operating condition
Every 4 years or 30,000
operating hours
Frequently started/stopped, and
relatively changing operating conditions
Every 3 years or 20,000
operating hours
Note 1: The above guideline is applicable only when the package unit is used under the standard
operating conditions separately defined. (Refer to Chapter 2, Section 2.3.2 "Operation Limits"
in this manual.)
Note 2: The above guideline is applicable only when the routine and regular inspection services that
are separately defined are performed. (Refer to Section 5.2.1 "Daily Maintenance" of this
chapter.)
Note 3: Inspect the compressor at the intervals of specified period or operating hours, whichever
comes first.
Note 4: The above guideline is for reference only, and not a warranty period.
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