Instruction book

1Install the compressor on a level floor, in a cool but frost-free room which is well-ventilated. The air should be clean.

2Position of compressed air outlet valve.

3The maximum total pipe length can be calculated as follows:

L

=

(dP x d5 x P) / (450 x Qc1.85)

L

=

pipe length in m

dP

=

maximum allowable pressure drop (recommended 0.1 bar)

d

=

inner diameter of pipe in mm

P

=

compressor outlet pressure in bar absolute

Qc

=

free air delivery of compressor in l/s

4/13 Ventilation: the inlet grids and fan for compressor room ventilation should be installed in such a way that any recirculation of cooling air to the compressor or dryer is avoided. The air velocity to the grids must be limited to 5 m/s. The maximum allowable pressure drop over the cooling air ducts is 50 Pa. If this pressure drop is exceeded, a fan is needed at the outlet of the cooling air ducts. The maximum air temperature at the compressor intake opening is 40 °C.

For alternatives 1 and 3, the required ventilation capacity to limit the compressor room temperature can be calculated as follows:

Qv = 0.92 N/dT

Qv = required ventilation capacity in m³/s N = shaft input of compressor in kW

dT= temperature increase in compressor room in °C

For alternatives 2 and 4, the fan capacity should match the compressor fan capacity at a pressure head equal to the pressure drop caused by the outlet cooling air ducts.

5Position of control cubicle with monitoring panel.

6Position of main cable entry. See section 7.1 for the recommended electric cables. See section 2.3 for connecting the power supply.

7Optional filters can be installed in the pressure line downstream of the air outlet valve, e.g.: A DD filter for general-purpose filtration. The filter traps solid particles down to 1 micron. A PD filter for filtration down to 0.01 micron. A PD filter must be installed downstream of a DD filter. If odours are undesirable, a filter of the QD type should be installed downstream of the PD filter. It is recommended to install by-pass pipes to isolate the filters during servicing.

8Safety valve.

9Position of the drain flexibles. The flexibles towards the drain collector must not dip into the water of the drain collector.

10Cooling air outlet, compressor elements.

11Bodywork ventilation outlet.

12Cooling air outlet, air cooler and dryer.

14 Data plate

2920 1521 00

23

Page 23
Image 23
Atlas Air Compressor manual Instruction book