2 Safety instructions
EN
6
Rittal Liquid Cooling Package
2
Safety instructions
The Liquid Cooling Packages produced by Rittal
GmbH & Co. KG are developed and produced with
due regard to all safety precautions. Nevertheless, the
unit still causes a number of unavoidable dangers and
risks. The safety instructions provide you with an over-
view of these dangers and the necessary safety pre-
cautions.
In the interest of your safety and the safety of others,
please read these safety instructions carefully before
assembly and commissioning of the Liquid Cooling
Package.
Follow the user information found in these instructions
and on the unit carefully.
2.1
Important safety instructions:
As a general requirement, please observe the follow-
ing five safety rules to DIN VDE 0105 when working in
and on the Liquid Cooling Package, in order to avoid
accidents:
1. Switch off!
Switch off the Liquid Cooling Package at the mas-
ter switch.
2. Prevent reactivation!
3. Ensure that all poles are de-energised!
4. Earth and short-circuit!
5. Cover or shield adjacent, live parts!
Danger! Electric shock!
Contact with live electrical parts may be
lethal.
Before switching on, ensure that it is not
possible to come into contact with live
electrical parts.
The unit has a high discharge current. For
this reason, it is essential to make a
10 mm2 earth connection before connect-
ing to the supply circuit (see section 16.4
"Circuit diagram").
Danger! Injury caused by fan impellors!
Keep persons and objects away from the
fan impellors! Do not remove covers until
the power supply is disconnected and im-
pellors are not moving! Always use me-
chanical protection when working! Shut
down the respective fan during mainte-
nance work, if possible! Tie long hair
back! Do not wear loose clothing!
Fans start up automatically following
power disruptions!
Danger! Cut wounds, especially through
sharp edges of the fan and heat exchang-
er modules!
Put on protective gloves before beginning
assembly or cleaning work!
Danger! Injury due to falling loads!
Do not stand under suspended loads
when transporting the unit with a hoist
trolley, a forklift, or a crane.
Caution! Risk of malfunction or damage!
Do not modify the unit! Use only original
spare parts!
Caution! Risk of malfunction or damage!
Proper and flawless unit operation can
only be ensured when it is operated under
the intended ambient conditions. As far
as possible, be sure that the ambient con-
ditions for which the unit is designed are
complied with, e.g. temperature, humidity,
air purity.
Caution! Risk of malfunction or damage!
All media necessary for the control sys-
tem, e.g. cooling water, must be available
during the entire operating time.
Caution! Risk of malfunction or damage!
It is vital that the manufacturer's consent
is obtained before adding anti-freeze!
Caution! Risk of malfunction or damage!
During storage and transportation below
freezing point, the water cycle should be
drained completely using compressed
air!
Caution! Risk of malfunction or damage!
Only set the temperature control setpoint
as low as is strictly necessary, since the
danger of condensation through under-
cutting the dew point increases with a fall-
ing water inlet temperature!
Ensure that the enclosure is sealed on all
sides, particularly at the cable entry (con-
densation)!
