Preparations For Commissioning - Gardner Denver ESM 30 Original User Manual

6. Preparations for commissioning

6 Pr epar ati on s f or com m iss io nin g
6.1 Cooling air volume/minimum cross
Fig. 9
1 Cooling air intake
2 Cooling air outlet
3 Cooling-air inlet for optional refrigeration dryer
4 Cooling-air outlet for optional refrigeration dryer
The cooling air volume required by these screw
compressors is as follows:
3
ESM 30 65 m
3
ESM 37 78 m
3
ESM 37RS 78 m
3
ESM 45 87 m
3
ESM 50 87 m
3
ESM 45RS 87 m
The required cooling-air flow is increased by 33 m³/min.
if a dryer is installed.
Under unfavourable local conditions, we recommend
the installation of venting ducts. However, the velocity
of the cooling air should not exceed 5 m/s/ 17 ft/sec.
We recommend a minimum duct cross-section of
2 2
approx. 0.55 m /6 ft .
Important
The stated minimum cross-section refers to a
maximum duct length of 5 m/16.4 ft and a maximum
of one bend. In the event of differing values (over
5 m/16.4 ft, more than one bend, filter cartridges,
screens, etc.), please contact your technical
adviser.
Gardner Denver screw compressors are rated for
ambient temperatures and cooling temperatures of
+1°C/ 33.8°F to +45°C/113°F. In the case of
temperatures other than the above limiting values,
please consult your technical adviser.
/min
/min
/min
/min
/min
/min
Note
In order to ensure a good heat dissipation, auxiliary
fans should be rated to process approximately 15 to
20% more air volume than the total cooling air
quantity required by the compressors installed in the
compressed air station.
The figures below show the recommended ventilation
sections arrangement:
Air channel
Ventilator
Fig. 9b
Air
intake
Air
intake
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