WVM_BASIS_EN_03—07/2016
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Note:
It is not necessary to set the main switch to position "0". The display
remains on.
Depressurising and shutting down the dryer
You must depressurise the dryer and shut it down for:
maintenance
disassembly
►
Stop dryer (see the operating manual for the controller).
Depending on the installed controller, the following stop situations can occur:
The dryer completes the current regeneration cycle and pressure build-up
before the programme stops.
The dryer stops immediately (or after one minute during the heating phase).
►
Close the pressure inlet valve and the pressure outlet value (both provided
by customer).
►
Close any existing inlet and outlet valves for supply media (e.g. cooling water
and steam).
The dryer is separated from the compressed air network and can be shut off
now.
►
Set the master switch to “0
”
.
Note:
Do not let any compressed air flow through the dryer after it has been
shut down! The desiccant in one of the vessels will otherwise
continue to be loaded with moisture without the other vessel being
regenerated at the same time.
►
Depressurise the adsorbing vessel (e.g. by opening the manual drain valve
on the downstream filter).
►
Wait until the pressure on the vessel pressure gauge of the adsorbing
vessel has dropped to 0 bar.
►
Using the vessel pressure gauge, check whether both vessels have been
depressurised.
►
For maintenance work: wait until the dryer has cooled down.
Risk of injury from hot surfaces!
Certain surfaces at the dryer remain hot even after the unit has been shut
down. Do not touch hot surfaces! Allow surfaces to cool before you carry
out any work at the dryer.
