Rittal Liquid Cooling Package
35
6 Installation
EN
which the condensate is pressurelessly routed out of
the Liquid Cooling Package.
The hose included with the supply (
Ø
int
=9.5 mm,
Ø
ext
=15.5 mm) must be connected to the condensate
discharge. This hose, in turn, must be routed to a drain
with odour seal by the customer, so that any conden-
sate can be discharged from the device.
If a leak occurs in the water circuit, upon reaching a
defined level in the collecting tray, a message is trig-
gered by the leak sensor (fig. 46, item 2). The status
of the control valve may be set depending on this "leak
message" (see section 8.2.4 "LCP configuration"). If
the option
Emergency Mode
is selected, the valve will
close completely, whereas if the option
Only Alarm
Message
is selected, only an alarm message is out-
put.
6.1.4
Bleeding the air from the heat exchanger
A vent valve is installed at the uppermost point of the
heat exchanger package in the Liquid Cooling
Package. The unit is delivered with the valve fully
closed. However, the valve must be opened during
commissioning. Proceed as follows:
Open the rear LCP door.
Connect the discharge hose included with the ac-
cessories to the top of the vent valve on the connec-
tor (fig. 47, item 2).
Route the other end of the hose into a container.
Open the ball valve (fig. 47, item 1).
Close the ball valve again when no further air bub-
bles are visible in the collecting container.
The heat exchanger has now been vented.
Fig. 47:
Bleeding the air from the heat exchanger
Key
1
Ball valve
2
Connector for discharge hose
Then close the LCP door at the rear.
6.2
Cooling operation and control
characteristics
When the Liquid Cooling Package is supplied with
power, the control valve controls the cooling water
flow according to the setpoint temperature. For more
detailed explanations, please refer to section 3.1
"General functional description".
Detailed diagrams on cooling output and pressure
loss may be found in section 16.2 "Characteristic
curves".
Note:
In order to ensure safe condensate dis-
charge, the following points should be ob-
served:
– Lay the drainage hose so that it always
runs downhill and without any kinks.
– Do not constrict the hose cross section.
Note:
In order to avoid increased condensation
and to reduce energy use, the cooling water
temperature should be adapted to match the
required cooling output.
Note:
The system is usually bled during the course
of commissioning. After bleeding, the ball
valve should be closed again.
2
1
