INSTALLATION, START-UP & MAINTENANCE MANUAL
MODEL NO.: SD-820 / SD-1710
REV 1 – AUGUST 03,.2001
Page 23
SECTION 4
4.1 REPLACEMENT OF THE DESICCANT
In order to ensure trouble-free operation, we recommend replacing the
desiccant every 8000 Hours, or every 2 years on latest.
•
Close dryer inlet/outlet isolation valves.
•
Depressurize and switch off the adsorption dryer.
•
Remove the drain plug and empty the old desiccant into a container.
•
Screw the plug back in and fill new desiccant from above into the vessels.
•
Pressurize the adsorption dryer and restore power to the dryer.
4.2 DISPOSAL OF THE DESICCANT
Danger!
The desiccant can be disposed of at a suitable
disposal site in accordance with local or official
regulations.
Don't forget: the desiccant may contain pollutants!
4.3 CHANGING OF THE REGENERATION ORIFICE
•
Depressurize and remove power from the dryer.
•
The regeneration orifice (Quantity = 2) are integrated into orifice unions that are
threaded directly into the top purge manifold.
•
The orifice union valves can be disassembled using standard hex. Pipe
wrenches. The orifice disks are wedged between the two union parts.
•
Remove regeneration orifice and re-install new orifice as required.
•
Verify all previously disassembled piping joints are properly secured.
NOTE: Consult
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for recommendations and or replacement of the purge
regeneration orifice. Modification of the regeneration orifice can lead to
performance deterioration of the dryer.
* Advice
Should the need for spare parts arise during work on the
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adsorption
dryer of the SD-820 – SD-1710 series, then the dryer type and the construction
of the adsorption dryer must always be indicated. This information is given on
the nameplate mounted on the electric cabinet.
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