Cooling Air Requirement - Boge C 15 Operating Instructions Manual

Installation

Cooling air requirement

BOGE Operating instructions for C 15 series screw compressors
3.2
Supply and exhaust air ducts
– Ensure that the flow rates in the ducts do not exceed 157 inches/s.
– Never position cooling air ducts directly on the compressor. Always use a
compensator to avoid distortion and the transfer of vibrations.
Ventilators
Ensure that the heated exhaust air is not taken in again.
If necessary, the heated air must be extracted by ventilators.
To ensure perfect cooling even at higher temperatures in the summer, the
ventilators must be designed as follows:
– The ventilator capacity must be rated approx. 10...15% higher than the sum
of the cooling air quantity required for all machines operated in the room.
– For free-standing installation, the cooling air requirement specified in the
table corresponds to the required ventilator capacity.
Supply air filter
– The compressor is fitted with supply air filter mats.
Please refer to the following table for the cooling air requirement and size of
the supply air openings for your compressor. Ensure that flaps and weather
protection grids have the necessary free cross section. We generally recom-
mend contacting a specialist company for performing the duct construction
work and planning.
Type Drive
rating
[Hp]
C 15 / C 15 F 15.0
* For the cooling air requirements the basis is a 39°F temperature difference between room and outside temperature.
Tab. 3.1: cooling air requirement, necessary cross sections for openings and
ducts
Compressor room
* Cooling air Necessary
requirement inlet
for free opening
standing unit for free
standing unit
[cfm] [sq. ft.]
2180 5.4
* Cooling air Necessary
requirement free duct
for instal- cross section
lation with
ducting
[cfm] [sq. ft.]
1002 1.2
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