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EN | User Manual
Operating the dryer for the fi rst time (or after a change of drying agent) separately
Depending on the transportation and storage conditions, the drying agent in the chambers
can already be loaded with humidity from the environment. At each fi rst start-up it makes
sense therefore to operate the dryer from some time separately from the compressed air
system. This causes the drying agent in each chamber to be regenerated repeatedly and thus
to be prepared optimally for the take-up of humidity.
Note:
Depending on the pressure dew point to be achieved, we recommend to oper-
ate the dryer at fi rst start-up:
◊ for pressure dew point of –25 to –40 °C: without compressed air consump-
tion for at least 4 hours;
◊ for pressure dew point of –70 °C: without compressed air consumption for
1 day and then at a reduced nominal fl ow of 50% during the next 6 to7 days
without regard for the dew point.
If you wish to take the dryer into operation in accordance with our recommendation, proceed
as follows:
Ensure that the compressed air outlet valve installed by the owner is closed.
Keep the compressed air outlet valve closed for the time period recommended above.
Then the dryer can be taken into service in the compressed air system as described in the
following section:
Operate dryer immediately in the compressed air system
Ensure that the compressed air system downstream of the dryer is pressurised or that a
start-up device (option, see page 18) was installed into the compressed air system directly
downstream of the dryer.
The importance of this increases with the size of the compressed air system downstream of
the dryer. Smaller compressed air systems can be pressurised also by means of compressed
air fed through the dryer.
Slowly open compressed air outlet valve!
Avoid a sudden drop in pressure in any circumstance! If pressure drops too
fast, this may cause damage to the dryer. Therefore, the compressed air outlet
valve must always be opened quite slowly!
Slowly open the compressed air outlet valve installed by the owner. The pressure should
not drop below the operating pressure (if poss.). If necessary, keep the compressed air outlet
valve in a slightly open position until the compressed air system downstream of the dryer has
fi lled up completely; only then should the valve be opened fully.
The dryer has then be taken into operation within the compressed air system.
In the event of a fault
In the event of an emergency or if a safety-relevant disruption occurs (e.g. escaping com-
pressed air, defective component), immediately close the compressed air supply line and set
the ON/OFF switch of the dryer to 0 in order to disconnect it from the power supply. After-
wards depressurise the dryer (see also chapter , page 33).
Then proceed as follows:
Remedy fault:
Look up possible cause of the fault, and how to remedy the same, in the table on page
42.
Remedy fault.
Repeat the start-up procedure.
30
Start-up
KE-MT 120-600
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