User manual

2920 1475 00

Instruction book

2. To stop the compressor in case of emergency, press button

(S2-Fig. 3.8). Alarm LED (7) blinks. After remedying the

fault, unlock the button by pulling it out.

3. Close air outlet valve (3-Fig. 3.5/7-Fig. 3.6).

4. Open condensate drain valves (1 and 2-Fig. 3.7). 2)

5. On GA W, close the water shut-off valves 6).

6. On GA W, if the compressor is installed in a room where

freezing temperatures are expected, drain the cooling

system by opening the drain valves in the water inlet and

outlet pipes (customer's installation).

7. Switch off the voltage.

Example: ambient temperature 20 degrees Celsius, relative humidity 100 % and working pressure 10 bar(e). The minimum

allowable temperature at the outlet of the compressor elements is 68 degrees Celsius. Regulate the cooling water flow to obtain

a temperature between 70 and approx. 75 degrees Celsius at the outlet of the compressor elements.

Fig. 3.9 Minimum allowable air temperature at outlet of compressor elements (for water-cooled compressors)

1 Water outlet

2 Water inlet

3 Combined oil and air coolers

4 Regulating valve, water flow

Fig. 3.10 Water system of GA W (typical example)

50847F