10. Service and maintenance
38
10.4
Change of air intake filter
DANGER
Only perform checks and carry out work on
the screw compressor when the unit is out
of operation, depressurized, and secured
from being switched on again!
NOTICE
Never operate the screw compressor system
without an air filter (even briefly removing it can
cause considerable damage to the machine)!
Fig. 16
1 Air intake filter
As a standard, the air filter is provided with a visual in-
take filter monitor, which indicates clogging of the air
filter cartridge.
When the red service field of the intake filter monitor is
visible and remains clicked into position while the screw
compressor is out of operation, replace the air filter
cartridge.
However, the air filter cartridge should be replaced at the
latest as specified in chapter 10.3. Check air filter at least
once a week or, if required, daily for the accumulator of
dust. When carrying out maintenance work, make sure
that no dirt gets to the clean air side of the air filter.
Changing intervals for air filter cartridge
The operating conditions (e.g., coolant temperatures),
the operating modes and the quality of the intake air
(e.g., content of dust, content of gaseous foreign
substances such as SO
2
and solvent vapors, etc.) have
a strong influence on the service life of the filters (air
filters, water filters, fine separators).
Where such conditions exist the filter element may
require changing more frequently.
10.5
Change water filter
WARNING
Air/water under pressure may cause severe
personal injury.
•
Shut down compressor, relieve system
of all pressure, disconnect, lockout and
tagout power supply to the compressor
package before removing valves, caps,
plugs, fittings, bolts and filters.
•
Make sure that system is leak tight!
Fig. 17
1 Water filter
2 Extraction site for water sample
You will find the changing intervals listed in the
maintenance schedule.
Perform the water filter change as follows:
•
Turn off compressor, secure it from being switched
on again, and make sure that it is depressurized
and volt-free.
Summary of Contents for EnviroAire 15
Page 1: ...Original Operating and Service Manual 15 22 kW USA Id no ZS1093133 00 June 2012...
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Page 52: ...12 Annex 50 Fig 29 all dimensions in Inches...
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