8 Troubleshooting
EN
24
Rittal Liquid Cooling Package
8
Troubleshooting
In order to prevent malfunctions caused by the cold wa-
ter system, the following remedies should be implement-
ed.
Malfunc-
tion loca-
tion
Malfunction
Cause of malfunction
Effect
Remedy
Liquid Cool-
ing Package
The unit is not
supplying the
required
cooling out-
put
Air in the system
If there is air in the system,
the water cannot circulate
properly in the heat ex-
changer. Thus, it cannot re-
move heat.
Bleed the air from the heat
exchanger.
Increased pressure loss on
the piping network side, e.g.
through a clogged filter or in-
correctly set flow limiter
The external pumps are not
able to pump enough cold
water through the Liquid
Cooling Package.
Clean the filter, set the flow
limiter correctly.
Air routing not correct
The cooled air passes
through unsealed openings
past the equipment to the
front of the enclosure.
Unused height units in the
482.6 mm (19") level as well
as side slots and openings
must be sealed using blank-
ing plates or air baffle plates.
Both are available as acces-
sories.
Malfunc-
tion loca-
tion
Malfunction
Cause of malfunction
Effect
Remedy
Cold water
system
Corrosion
and contami-
nants in the
cold water
system
Insufficient cleaning after a
new installation
Unclean and aggressive wa-
ter leads to a weakening of
the material and to improper
function.
During initial installation, the
pipe network and the system
parts should be flushed out
before installing the Liquid
Cooling Package.
Improper treatment of the
water with corrosion protec-
tion additives
Rittal GmbH & Co. KG rec-
ommends the installation of
filters and the treatment of
the water with appropriate
corrosion and, if needed, an-
tifreeze additives. The rec-
ommended notes regarding
water quality are found in
section 13.1 "Hydrological
information".
Older systems with existing
contaminants
When integrating into exist-
ing cold water networks, the
use of a water/water heat
exchanger is recommended.
This forms a second water
circuit.
