Rittal Liquid Cooling Package
37
7 Commissioning checklist
EN
If the water quality of the primary cold water supply is
inadequate, was a separate water circuit with a water/
water heat exchanger installed?
If the cold water supply is strongly contaminated, it
may make sense to install a second, high quality
cold water circuit which is connected to the primary
circuit via a water/water heat exchanger. Even in this
case, the water circuit on the Liquid Cooling
Package side must be carefully cleaned before con-
necting the device. Our recommendations regard-
ing water quality in section 16.1 "Hydrological infor-
mation" apply in this case as well.
Was the water prepared/treated with the appropriate
additives?
In addition to our recommendations regarding water
quality, we recommend that the water be enriched
with corrosion inhibitor and/or antifreeze. Also, a
treatment to prevent algae and biofilms may be ex-
pedient in some cases.
Are unused height units in the bayed server enclo-
sures sealed with vertical blanking plates, and are the
side vertical foam strips installed?
In order to prevent undesired air short circuits and
circulation patterns inside the server enclosure, all
unused height units of the 482.6 mm (19") level
should be closed off with blanking plates. Thus, the
air will only enter the rear of the server enclosure
through the server itself, where it is drawn off by the
Liquid Cooling Package. The blanking plates are
available in various heights, e.g. Model No.
1931.200 for one height unit. The vertical foam seal-
ing strips installed on each side of the server enclo-
sure ensure that the cooled air cannot flow past the
482.6 mm (19") level at the sides. Sealing strips are
available for 2 applications and 2 enclosure widths.
The respective model numbers are found in section
15 "Accessories".
Are all electrical, water, and power connections cor-
rectly made?
Before water is admitted, and, ideally before the ball
valves are opened, be sure to check that all connec-
tions are properly made. Take particular care to en-
sure that all quick release fasteners are fully
snapped into place.
Is the TS server enclosure equipped with suitable
doors?
The LCP Rack operates with closed air circuits.
Thus, the cooled server enclosure must largely be
hermetically sealed and equipped with unperforat-
ed sheet steel or glass doors on the front and rear.
Exception when using the LCP Inline or the
LCP Inline flush:
In this case, both the front / front door and the rear /
rear door of the server enclosure must have unre-
stricted air permeability.
After admitting cold water:
Are all parts and connections water tight?
Please check to be sure that all parts and connec-
tions which carry water are water tight. The Liquid
Cooling Package is subject to an individual, com-
prehensive factory test, which also includes check-
ing for leaks. This additional check serves to locate
problems, such as possible transport damage, and
to prevent greater damage.
Venting of the Liquid Cooling Package
In order to ensure even water circulation through the
circuit and effective heat transfer, the Liquid Cooling
Package must be vented during commissioning.
After the installation:
We recommend that the following selected parame-
ters be gathered and documented within a short time
after installation.
– Inlet temperature
– Return temperature
– Volumetric flow with opened 2-way control valve
Photo Clariant
Note:
Documenting these parameters helps with
error analysis in case malfunctions occur
during operation.
