KGL Operating Manual – UA 412 S
2019-01-14
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2.3 Intended Use
This controller is exclusively provided for the intended use: The UA 412 S / UA 413 S controller is intended for
use as case controller in commercial and industrial refrigeration systems with the scope of functions and in
accordance with the environmental conditions described in this operating manual.
Note the safety instructions and the instructions for installation and putting into service, operation and
maintenance. Start the commissioning and/or the operation of the machine / system AFTERWARDS.
The safety and the function of the machine / system are only fulfilled with this intended use.
Therefore, never use the machine / system, its components, control components or parts for any other
purpose.
The system must not be put into operation until conformity with the applicable EC Directives has been
established for the entire installation.
2.4 Five safety rules according to BGV A3
The following rules
.
must be strictly observed
1. Disconnect: The entire system to be worked on must be disconnected from the power supply at all poles.
Warning about dangerous electrical voltage! Pay attention to possible external power supply!
connecting and disconnecting it must be checked that
at the
BEFORE
no voltage is present
controller! All device connections / connectors may only be plugged in, unplugged and/or wired when
no voltage is present.
2. Secure against restarting: Attach information signs to the disconnected operating equipment stating:
What has been disconnected.
Reason for the disconnection.
Name of the person who made the disconnection.
Restarting must be prevented using a suitable lock (e.g. padlock).
3. Establish absence of voltage (only by authorised specialist personnel):
Check voltmeter just before use.
Establish absence of voltage on all poles at the disconnection point.
Establish absence of voltage on all poles at the place of work.
4. Ground and short-circuit: All electrical parts at the place of work must be grounded and then short-circuited.
5. Cover or shield neighbouring live parts: If there is neighbouring live equipment in the work area, this must be
covered using appropriate materials (e.g. insulation blankets / insulating plates).
2.5 Electrostatic sensitive components and control components (ESD)
Electronic components and control components (e.g. circuit boards) are sensitive to electrostatic
charges. Therefore, the guidelines for handling electrostatic sensitive components and control components
must be strictly observed, see chapter
ESD - guidelines for handling, page 12
.
All electrostatic sensitive components and control components (referred to as "ESD" below) are labelled with
the warning sign shown. Electrostatic charges arise from friction of insulating materials (e.g. floor covering,
items of clothing made of synthetic fibres etc.). Even small charges can result in damage to or destruction of
components. Damage cannot always be established directly, but partially does not result in failure until after a
certain operating time.
