12 Decommissioning, Storage and Transport
12.1 De-commissioning
De-commissioning is necessary, for example, under the following circumstances:
■ The machine is (temporarily) not needed.
■ The machine is to be moved to another location.
■ The machine is to be scrapped.
➤ The following tasks must be carried out only by authorised personnel.
12.1.1 Temporary de-commissioning
Precondition The machine can be started at regular intervals.
➤ Run the machine once a week for at least 30 minutes under LOAD to ensure sufficient protec‐
tion against corrosion.
12.1.2 Long-term de-commissioning
Precondition Immediately prior to de-commissioning, run the machine in LOAD operation for at least 30 minutes.
12.1.2.1 Draining condensate
If the machine is equipped with a condensate drain, then drain the condensate from the conden‐
sate drain.
Precondition The machine is switched off.
1. Drain condensate from the condensate drain and dispose of according to applicable environ‐
mental protection regulations.
2. Remove the user-supplied condensate lines.
12.1.2.2 Isolating the machine from supply lines
Precondition The power supply isolating device is switched off,
it has been locked off against unintentional reactivation and
the absence of voltage has been verified.
The machine is fully vented (depressurised).
The user's shut-off valve to the compressed air network is closed or the compressed air network
has been fully vented.
1. Allow the machine to completely cool down.
2. Detach the power supply and connecting line to the compressed air network at the user side.
3. Option W2/W3:
Detach the user connecting lines and use compressed air (<2 bar) to blow out the heat recov‐
ery system until liquid no longer escapes.
4. Properly close all open connecting ports.
12 Decommissioning, Storage and Transport
12.1 De-commissioning
88
Operating Manual Screw Compressor
ASK 901824 12 E
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