1. The power supply must only be connected by authorised installation personnel or an author‐
ised electrician.
2. Carry out safety measures as stipulated in relevant regulations (IEC 364, for example or
DIN VDE 0100) and in national accident prevention regulations (BGV A3 in Germany). In addi‐
tion, observe the regulations of the local electricity supplier.
3. Test the overcurrent protection cut-out to ensure that the time it takes to disconnect in re‐
sponse to a fault is within the permitted limit.
4. Select supply cable conductor diameters and fusing in accordance with local regulations.
5. The user must provide the machine with a lockable power supply disconnecting device.
This could be, for example, a load disconnect switch with fused input. If a circuit breaker is
used it must be suitable for the motor starting characteristics.
6. Check that the tappings on the control voltage transformer are connected according to the sup‐
ply voltage.
If not, change the tappings to suit the power supply voltage.
7. DANGER!
Danger of fatal injury from electric shock!
➤ Switch off and lock out the power supply disconnecting device and verify the absence of
voltage.
8. Connect the machine to the power supply.
9. Ensure that the cabinet again complies with the requirements of degree of protection IP54.
Further information The electrical diagram in chapter 13.4 contains further details of the power supply connection.
6.4.1 Option T2
Refrigeration dryer: Connecting the transformer according to the mains sup‐
ply.
The refrigeration dryer transformer has tappings for various mains voltages.
1. Check that the correct connections are made for the supply voltage provided for the machine.
2. If necessary, re-connect the transformer to match the mains supply voltage.
Further information The electrical diagram in chapter 13.4 contains further details of the power supply connection.
6.5 Connecting the Condensate Drain
A threaded hose connection is provided to connect a condensate drain hose to the condensate
drain outlet.
Condensate must be able to drain freely.
The illustration shows typical installations.
Condensate flows downward in the collecting line. This prevents condensate flowing back to the
compressor.
6
Installation
6.5
Connecting the Condensate Drain
42
Service Manual Screw Compressor
ASK T SIGMA CONTROL BASIC
9_5717 20 E
Содержание ASK 27
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