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9.5
Connection to the cooling-water network
Danger!
Compressed air and unqualified personnel!
All works must only be carried out by qualified skilled personnel.
Never work on compressed-air systems which are under pressure.
The user must ensure that the dryer is never operated with a pressure exceeding the nominal values.
Possible overpressure can be dangerous for the operator but also for the device.
The temperature and the amount of cooling water need to correspond to the limit values indicated on the name plate.
The cross-section of the connecting lines, which should preferably be flexible, must be free from dust, iron rust, shards
and other contaminations. We recommend employing connecting lines (flexible hoses, vibration-inhibiting fittings etc.)
which protect the dryer against possible vibrations in the pipework.
Note!
Contaminated intake water!
In the event that the intake water is strongly contaminated we recommend the additional installation of a
prefilter (500 micron), to avoid clogging of the heat exchanger.
9.6
Minimum cooling-water requirements:
Temperature
Pressure
Delivery pressure
Total hardness
PH
Conductivity
Residual solids
Saturation mark SI
HCO
3
2-
SO
4
Note:
(1) – Other temperatures upon request – check the data on the name plate.
(2) – Other pressures upon request – check the data on the name plate.
(3) – Pressure difference at the water connection of the dryer at maximum water flow.
Other delivery pressures upon request.
CAUTION!
During the piping of the dryer, the inlet and outlet connections need to be supported as is shown in the
illustration.
Non-observance will cause damage.
DRYPOINT® RA 1300-4400 eco
15 ... 30°C (1)
3...10 bar(g) (2)
> 3 bar (2) (3)
6.0...15 dH°
7.5...9.0
10...500 μS/cm
<30 mg/l or ppm
-0.2 < 0 < 0.2
70...300 mg/l or ppm
<70 mg/l or ppm
HCO
/ SO
>1.0 mg/l or ppm
3
4
NH
<2 mg/l or ppm
3
-
Cl
50 mg/l or ppm
Cl
0.5 mg/l or ppm
2
H
S
<0.05 mg/l or ppm
2
CO
<5 mg/l or ppm
2
NO
<100 mg/l or ppm
3
Fe
<0.2 mg/l or ppm
Al
<0.2 mg/l or ppm
Mn
<0.1 mg/l or ppm
Installation
35
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