7 Commissioning checklist
EN
22
Rittal Liquid Cooling Package
7
Commissioning checklist
Rittal GmbH & Co. KG hopes that this checklist will help
its customers and cooperation partners install and oper-
ate the products of the Liquid Cooling Package family
successfully.
Before the installation:
Are shut-off valves installed in the flow and return?
These valves make it easier to replace or repair the
Liquid Cooling Package without the need to shut off
the entire cold water supply.
Is there a taco-setter installed in the return of each Liquid
Cooling Package?
The taco-setter ensures a constant volumetric flow
and helps to maintain the hydraulic balance of the sys-
tem, especially when operating with other types of
units, such as convectors.
Is the water supply properly insulated?
Proper insulation protects against condensate forma-
tion, especially on the cooling water inlet components.
Are the permissible bending radii of the hoses adhered
to?
The hoses must not be kinked too tightly, otherwise
the flow volume may be impaired and the materials
may fatigue prematurely.
Is there a good water supply available which meets the
quality requirements?
Water quality determines the lasting reliability of the
system. It ensures that no undesirable corrosion or
harmful deposits will occur. The exact manufacturer's
recommendations regarding water quality can be
found in section 13.1 "Hydrological information" of the
assembly and operating instructions of your Liquid
Cooling Package. It is important to ensure that the
recommended water quality is maintained even after
installation.
Was the pipework sufficiently flushed before the Liquid
Cooling Package was connected?
It is important to clean or flush the water circuits ap-
propriately, especially for new installations. Experience
has shown that there are often remnants of sealants,
lubricants, and even metal chips in new systems,
which may lead to a premature failure of the Liquid
Cooling Package. Cleaning the cold water system
carefully before connecting the Liquid Cooling
Package ensures reliable operation later.
If the water quality of the primary cold water supply is in-
adequate, was a separate water circuit with a water/wa-
ter 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 connecting the de-
vice. Our recommendations regarding water quality in
section 13.1 "Hydrological information" of the assem-
bly and operating instructions of your Liquid Cooling
Package apply to this procedure as well.
Note:
If the pipework for the Liquid Cooling
Package is laid according to the Tichelmann
principle, a taco-setter is not necessary.
Photo: Amacell
Photo: Honeywell
