Gardner Denver EnviroAire 15, Оригинальное руководство по эксплуатации

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7. Preparations for commissioning
24
7 Preparations for c omm issioning
7.1 Cooling air volume/minimum cross
Fig. 6
1 Cooling air intake
2 Cooling air outlet
Fig. 7
1 Additional cooling air intake of control cabinet
The cooling air volume required by these screw
compressors is as follows:
EnviroAire (VS) 15 approx. 3125 cfm
EnviroAire (VS) 22 approx. 3125 cfm
If conditions are not favorable, we recommend the
installation of venting ducts. However, the velocity of
the cooling air should not exceed 17ft/sec. We
recommend a minimum duct cross-section of approx.
6 ft
2
.
NOTICE
The stated minimum cross-section refers to a
maximum duct length of 16.4 ft and a maximum
of one bend. In the event of differing values
(over 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 35.6 °F to 104 °F.
In the case of temperatures other than the
above limiting values, please consult your
technical adviser.
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:
Fig. 8