Max. working pres‐
sure [bar]
ASK 28 ASK 34 ASK 40
11.0 3565 3565 3565
15.0 3565 3565 3565
Tab. 22 Compressor drive motor: Rated speed for 60 Hz
2.11.2 Fan motor
Mains frequency: 50 Hz
ASK 28 ASK 34 ASK 40
Rated power [kW] 0.55 0.55 0.55
Rated speed [rpm] 940 940 1440
Protection class IP 55 IP 55 IP 55
h = operating hours
Tab. 23 Fan motor (50Hz)
Mains frequency: 60 Hz
ASK 28 ASK 34 ASK 40
Rated power [kW] 0.55 0.55 0.55
Rated speed [rpm] 1150 1150 1150
Protection class IP 55 IP 55 IP 55
h = operating hours
Tab. 24 Fan motor (60Hz)
2.12 Noise emission [dB(A)]
Mains frequency ASK 28 ASK 34 ASK 40
50 Hz 65 67 69
60 Hz 67 69 71
Noise pressure level in operation at maximum working gauge pressure as per ISO 2151 and the
basic standard ISO 9614-2, uncertainty: ±3 dB(A)
Tab. 25 Noise emission [dB(A)]
2.13 Electrical connection
The machine is designed in accordance with the conditions for an electrical power supply specified
in EN 60204-1 (IEC 60204-1) section 4.3.
If no other conditions are specified by the operator, the thresholds described in this standard must
be adhered to.
It is recommended that the user and the supplier reach an agreement on the basis of EN 60204-1,
Annex B.
2 Technical Specifications
2.12 Noise emission [dB(A)]
901824 12 E
Operating Manual Screw Compressor
ASK
11
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