Atlas Copco CD65 Libro De Instrucciones página 16

CD65 – CD80 – CD100 – CD140 – CD170 – CD230 – CD280 – CD390 – CD520
!
Close the external inlet valve in case the compressor needs
to be restarted. The air speed in the start-up phase of the
compressor may damage the desiccant.
During operation
At regular intervals, check the PDP temperature. If the PDP
temperature is too high let the dryer regenerate (by closing the outlet
valve).
Stopping
To stop the dryer proceed as follows:
1. If installed and if necessary, open the bypass valves of the dryer
so that the application will still receive compressed air.
2. Close the external inlet valve between the compressor and the
dryer and the external outlet valve between the dryer and the dry
air consumer.
3. Let the dryer run for a period without consumption, to
depressurize the vessels.
4. Switch the dryer off .
!
If the dryer is stopped for a longer period, close the inlet and
outlet valve to avoid moisture from entering the dryer.
14
MAINTENANCE
General recommendations and precautions
The dryer does not need any specific maintenance. Nevertheless,
before carrying out any maintenance or corrective activity, read the
following recommendations
accordingly:
– Check that the dryer is switched off.
– Disconnect pressure sources and vent the internal pressure of
the system before dismantling any pressurized component.
– Use original Atlas Copco spare parts only.
– Check the correct operating after maintenance.
!
Filters and valves installed between the compressor, the
dryer and the air consumer may need other maintenance
activities than those mentioned below (e.g. draining the
filters and replacing the filter elements). Refer to the
appropriate manual for more information.
Maintenance activities
Daily
– Check PDP temperature.
Service plan A, at least once a year
– Replace the silencers.
– Replace the filter elements DD/PD.
– Exchange the dewpoint sensor: certificate is only one year valid.
For updating, contact Atlas Copco customer center.
Twice a year
– Check for damaged wiring or loose connections.
– Check for air leaks.
Service plan B
– Replace the desiccant. In normal working conditions, the lifetime
of the desiccant is approximately 5 years. It is recommended to
have the desiccant replaced by an Atlas Copco service
technician.
– Replace the silencers.
– Replace the filter elements DD/PD.
– Exchange the dewpoint sensor: certificate is only one year valid.
For updating, contact Atlas Copco customer center.
and safety precautions and
2904 0177 04
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