Rittal Liquid Cooling Package
65
10 Troubleshooting
EN
In order to prevent malfunctions caused by the cold
water system, the following remedies should be imple-
mented.
Liquid
Cooling
Package
The unit is
not providing
the required
cooling out-
put
Increased pressure loss
on the piping network side,
e.g. through a clogged fil-
ter or incorrectly 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
back of the enclosure.
Unused height units in the
482.6 mm (19") level as well
as side slots and openings
must be sealed using
blanking plates or foam
strips. Both are available as
accessories.
Malfunction
location
Malfunction
Cause of malfunction
Effect
Remedy
Malfunction
location
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
water leads to a weakening
of the material and to im-
proper function. The func-
tion of components such as
the 2-way control valve and
the flow meter is strongly
impaired through contami-
nants.
During initial installation,
the pipe network and the
system parts should be
flushed out before the in-
stallation of the Liquid
Cooling Package.
Improper treatment of the
water with corrosion pro-
tection additives.
Rittal GmbH & Co. KG rec-
ommends the installation of
filters and the treatment of
the water with appropriate
corrosion and, if needed,
antifreeze additives. The
recommended notes re-
garding water quality are
found in section 16.1 "Hy-
drological information".
Older systems with exist-
ing contaminants
Upon integration in existing
cold water networks, the
use of a water/water heat
exchanger is recommend-
ed. This forms a second
water circuit.
