2200LZJE-HO-C6-N_2013.12.
Chapter 5 Maintenance
Compound 2-stage Screw Compressor 2016**C
5.2 Maintenance List
5-5
5.2.3 Guidelines for Compressor Overhaul Frequency
When servicing or overhauling the compressor, follow the instructions and guidelines described below.
The compressor overhaul frequency is largely affected by the compressor operating conditions, type
and status of refrigerant and oil, and the system/equipment in which the compressor is operated. The
table below lists overhaul frequencies recommended by Mayekawa which are categorized based on
the compressor operating conditions.
Table 5-4 Standard Package Operation Conditions and Overhaul Frequency Guidelines
Category of operating condition
Application
example
Recommended Overhaul
Frequency
Relatively stable operating condition
Cold storage and
refrigeration
Every 5 years or 40,000
operating hours
Relatively changing operating condition
Ice maker/chiller
Every 4 years or 30,000
operating hours
Frequently started/stopped, and relatively
changing operating conditions
Heat pump
Every 3 years or 20,000
operating hours
Note 1: The above guidelines are only applicable when the compressor is operated within the operation
limits specified separately.
(See "2.3.2 Operation Limits" in this manual.)
Note 2: The above guidelines are only applicable when the compressor undergoes daily and periodical
inspections specified separately.
(See "5.2.1 Daily Management" in this manual.)
Note 3: Inspect the compressor at the intervals of specified period or operating hours, whichever comes
first.
Note 4: The above guidelines do not constitute any warranty.
