(7) Reverse side view.
Description
The compressor must only be moved or lifted as described in the section Initial start-up.
1. Install the compressor on a level floor suitable for taking its weight. The recommended minimum
distance between the top of the body and the ceiling is 1200 mm (47 in).
2. Remove the plastic plug (if provided) from the compressor air outlet pipe and install an air outlet
valve. Close the valve and connect it to the air net.
3. The maximum total length of the air delivery pipe can be calculated as follows:
For SI Units:
L
max
= (dp x d
5
x p) / (450 x Qc
1.85
)
Symbol Explanation
d Inner diameter of the outlet pipe in mm
dp Pressure drop (recommended maximum = 0.1 bar)
L Length of outlet pipe in m
p Absolute pressure at the compressor outlet in bar(a)
Qc Free air delivery of the compressor in l/s
For British/American Units:
L
max
= (1470 x d
5
x p x dp) / Qc
1.85
Symbol Explanation
d Inner diameter of the outlet pipe in inch
dp Pressure drop (recommended maximum = 1.45 psi)
L Length of outlet pipe in ft
p Absolute pressure at the compressor outlet in psi(g)
Qc Free air delivery of the compressor in cfm
It is strongly recommended to make the connection of the compressor air outlet pipe on top of the
main air net pipe in order to minimize carry-over of possible condensate residue.
As a rule of thumb, the following formula can be used to calculate the recommended volume of the
air net:
V = (30 x C x p x Q) / dp
Symbol Explanation
C Correction factor
dp Pressure difference between unloading and loading pressures in bar (recommended
minimum = 0.6)
p Compressor inlet pressure in bar absolute
Q Free air delivery of compressor in l/s
V Recommended air net volume in l
Instruction book
204 2920 1815 04
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