BOGE Operating instructions for C 16 N...C 30 N, C 16 F N...C 30 F N series screw compressors
Page 27
Installation
3.2
Compressor room
Ventilation openings (free-standing installation)
–
Arrange supply air openings close to the floor.
–
Arrange exhaust air openings in the ceiling or at the top of the wall.
–
The required cross sections for the supply openings (as well as for the
flaps and weather protection grids) are indicated in the table.
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.
Cooling air requirement
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.
* For the cooling air requirements the basis is a 39°F temperature difference between room and outside tempera-
ture.
Tab. 3.1: cooling air requirement, necessary cross sections for openings and
ducts
Type
Drive rating
* Cooling air
requirement
for free
standing unit
Necessary
inlet opening
for free
standing unit
* Cooling air
requirement
for instal-
lation with
ducting
Necessary
free duct
cross
section
[Hp]
[cfm]
[sq. ft.]
[cfm]
[sq. ft.]
C 16 N
C 20 N
C 25 N
C 30 N
C 16 F N
C 20 F N
C 25 F N
C 30 F N
15.0
20.0
25.0
30.0
15.0
20.0
25.0
30.0
2178
2886
3534
4123
2178
2886
3534
4123
5.4
7.2
8.3
9.9
5.4
7.2
8.3
9.9
1001
1473
1826
2032
1001
1473
1826
2032
1.2
1.8
2.3
2.6
1.2
1.8
2.3
2.6