Atlas Copco ZR 200, Инструкция, Страница: 54 / 110

(3) Rear side view.
(4) Ventilation proposal (without option separate air intake).
(5) Ventilation proposal (with option separate air intake).
(6) Common ducting for multiple units is not allowed.
(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 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
Air consumption divided by compressor free air
delivery Correction factor C
0.9 0.10
0.8 0.15
0.7 0.20
Instruction book
52 AIF999999