CompAir D110H RS, Руководство по эксплуатации и обслуживанию

Страница: 45 / 64

9. Service and maintenance
43
Perform the water filter change as follows:
•
Switch the screw compressor unit off and ensure
that it is depressurized, electrically isolate and
locked off.
•
Let cooling water drain off via the extraction site
(-2- Fig. 21) and drain screw on the water filter
housing (-1- Fig. 21).
•
Open filter housing and remove filter elements.
•
Clean the filter head and insert a new housing seal.
•
Insert a new filter element and close filter housing
again.
•
Re-close drain valve and screw.
Changing times for the water filter
The operating conditions (e.g. cooling medium
temperatures), the operating modes and the quality of
the suctioned air (e.g. dust content, content of gaseous
foreign matter such as SO
2,
solvents, etc.) has a strong
influence on the filter service life.
In these operational cases, shorter change intervals are
possible.
9.6 Replace prefilter RO unit
Fig. 22
1 RO membrane cartridge
2 Prefilter RO unit
3 Permeate pump
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!
Note
Before the prefilter element can be installed, the
element should be rinsed out with clean water so that
all coaldust has been removed.
Perform the prefilter change as follows:
•
Switch the screw compressor unit off and ensure
that it is depressurized, electrically isolate and
locked off.
•
Close the main water supply connection and valve
on the storage tank.
•
Screw off the filter housing (-2- Fig. 22) and remove
the filter element.
•
Insert a new filter element and hand tighten the filter
housing.
•
Re-open the main water supply and the storage tank
valve.
Changing times for prefilter RO unit
You will find the changing intervals listed in the
maintenance schedule.
The quality of the main water supply has a strong
influence on the filter service life.
In the event of unfavourable conditions, shorter
changing intervals are possible.
In order to determine the water quality, a water sample
can be extracted as needed (see- Fig. 21).
9.7 Change the RO membrane cartridge
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!
Change the RO membrane cartridge as follows:
•
Switch the screw compressor unit off and ensure
that it is depressurized, electrically isolate and
locked off.
•
Close the main water supply connection and valve
on the storage tank.
•
Remove the lines to the membrane (-1- Fig. 22).
•
Remove the old membrane cartridge and replace
with a new one.
•
Refit lines to the RO membrane cartridge.
•
Re-open the main water supply and the storage tank
valve.