PRO AIR TPK 21 LT, Functional Description And Operating Instructions

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2 General dangers and precautions
2.1 Safety instructions for electrical connection
2
Please read the following warnings prior to initial start-up! The symbols used in the
operating instructions are intended to call your attention to the safety risks. It is not
enough to simply observe the symbol. It is important to read the full text provided in
the safety instructions!
This symbol indicates a potential risk to humans, equipment or the environment. The
information provided must be strictly observed in order to prevent risks.
This symbol indicates important instructions for use and tips that are important in
order to successfully complete tasks, and which must be strictly observed to ensure
good results.
The device must only be supplied with extra-low voltage. The device's other
electrical connections must also only be connected with electronic components
that are operated via an extra-low voltage supply.
Contact with live parts may result in death. Installation of the controller and
maintenance work must therefore only be carried out by trained personnel. The
power supply must be turned off for installation and servicing.
Also avoid touching the plug or any other electronic components when the
power is switched off. Electrostatic phenomena may damage electronic
components.
The product is not intended to control systems with safety-related functions. Even
during normal operation there is a risk of unexpected malfunction, for example
due to a surge or the failure of a component. The user must make sure that no
damage can occur as a result of a malfunction or undefined device status. This
can be achieved, for instance, through the use of redundant components or
safety circuits.
Incorrect screw tightening torques at the connecting terminals or the use of
unsuitable tools can damage the terminal, resulting in damage to insulation or
the contacts. Poorly connected cables can come loose during operation, posing
a considerable risk to safety. Contact resistance at clamp connections results in
increased heat production that can cause a fire to start. Incorrectly wired
connections can destroy electrical components and result in other damage.