KAESER SK 22, Operating Manual

Page: 20 / 132

Heat recovery
The additional volume corresponds to the oil volume of the heat exchanger and the connecting
lines:
SK 22 SK 25 —
Additional charge vol‐
ume [l]*
* Enter the volume required by your heat recovery system.
Tab. 18 Cooling oil charge (Option W1)
2.11 Motors and power
2.11.1 Compressor drive motor
SK 22 SK 25 —
Rated power [kW] 11.0 15.0 —
Enclosure protection IP 55 IP 55 —
Tab. 19 Compressor drive motor
Rated speed [min
−1
] (Mains frequency: 50 Hz):
Max. working pres‐
sure [bar]
SK 22 SK 25 —
8.0 2960 2960 —
11.0 2960 2960 —
15.0 2960 2960 —
Tab. 20 Compressor drive motor: Rated speed for 50 Hz
Rated speed [min −1 ] (Mains frequency: 60 Hz):
Max. working pres‐
sure [bar]
SK 22 SK 25 —
8.5 3565 3565 —
11.0 3565 3565 —
15.0 3565 3565 —
Tab. 21 Compressor drive motor: Rated speed for 60 Hz
2.12 Noise emission [dB(A)]
Mains frequency SK 22 SK 25 —
50 Hz 66 67 —
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)
2 Technical Specifications
2.11 Motors and power
10
Operating Manual Rotary screw compressor
SK
901848 21 E
Option W1