INSTALLATION, START-UP & MAINTENANCE MANUAL
MODEL NO.: SD-220 TO SD-600- DDS OPTION
REV 0 – May 24,,.2001
35
SECTION 7
7.5 SHUT-DOWN IN CASE OF A FAULT OR FOR MAINTENANCE
DANGER!
Before any kind of maintenance or repair work is done, the
adsorption dryer must be depressurized and disconnected from
the power source.
Apply the general safety regulations!
* Advices
The following sequence is to be heeded when switching off the
adsorption dryer:
1. Wait until dryer is in repress
2. Then switch off
3. Close all the shut off valves up and downstream of the adsorption
dryer
4. Depressurize the dryer by using the hand valve mounted at the
bottom of the after-filter.
7.6 RE-STARTING
1. Close the hand valve mounted at the bottom of the after-filter.
2. Slowly open the inlet isolation valve and pressurize the adsorption dryer up
to the regular operating pressure by keeping the shut off valve mounted
behind the after-filter closed
3. Switch on the unit once again
4. If the adsorption dryer is re-started after a long standstill, proceed as in 3.1.
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