Rittal Liquid Cooling Package
19
6 Installation
EN
Fig. 22:
Cooling distribution with hydraulic balancing
However, if the individual connection lines for the LCP
systems are laid according to the "Tichelmann" connec-
tion principle, hydraulic balancing is not necessary. With
this connection variant, all individual connection lines
have the same pressure loss.
Fig. 23:
Cooling distribution with Tichelmann principle
Notes on water quality
For safe operation, it is vital that the requirements of Di-
rective VDI 2035-2 are observed.
Detailed diagrams and tables showing cooling output
and pressure loss can be found in section 13.2 "Charac-
teristic curves and tables".
6.2
Bleeding the air from the heat exchanger
Two vent valves are installed at the uppermost point of
the heat exchanger package in the Liquid Cooling
Package. The unit is delivered with these valves fully
closed, but they must be opened prior to commission-
ing.
Proceed as follows to bleed the device:
Swing the LCP Hybrid away from the server enclosure.
Remove the three assembly components from the in-
ner maintenance door of the LCP Hybrid and open the
maintenance door.
Remove the vent hose included with the supply from
the inside of the maintenance door.
Fig. 24:
Vent hose on the LCP Hybrid
Key
1
Vent hose
2
Maintenance door
Connect the vent hose to the collective vent of the
heat exchanger from below.
Fig. 25:
Vent valves on the LCP Hybrid
Key
1
Vent valve 1
2
Vent valve 2
3
Collective vent
4
Vent hose
Note:
The maximum permissible working pressure
(PS1) of the LCP Hybrid is 6 bar. Membrane
expansion tanks and safety valves must be
used to ensure that this pressure is not ex-
ceeded.
Note:
Before commencing operation with water, all
supply lines must be adequately flushed.
Warning! Danger of cut wounds, espe-
cially from the sharp edges of the heat
exchanger module!
Put on protective gloves before begin-
ning assembly or cleaning work!
1
2
2
1
4
3