NORDAC ON / ON+ (SK 3xxP) – Manual with installation instructions
16 BU 0800 en-4521
Due to its operation, the device produces noises within the audible frequency range. These noises
may cause long-term stress, discomfort and fatigue, with negative effects on concentration. The
frequency range or the noise can be shifted to a less disturbing or almost inaudible range by
adjustment of the pulse frequency. However, this may possibly result in derating (lower power) of the
device.
Maintenance, repair and decommissioning
Installation, maintenance and repair work must not be carried out unless the device has been
disconnected from the voltage and at least 5 minutes have elapsed since the mains was switched off!
(Due to charged capacitors, hazardous voltages may be present on the device for up to 5 minutes
after being switched off from the mains). Before starting the work, it is essential to check by
measurement that all contacts of the power plug connectors or the connection terminals are voltage-
free.
Disposal
The product and its parts and accessories must not be disposed of as domestic waste. At the end of
its life, the product must be properly disposed of according to the local regulations for industrial waste.
In particular, this product contains integrated semiconductor circuits (PCBs and various electronic
components, including high power electrolytic capacitors). In case of incorrect disposal there is a risk
of formation of toxic gases, which may cause contamination of the environment and direct or indirect
injuries (e.g. chemical burns). In the case of high power electrolytic capacitors, there is also a risk of
explosion, with the associated risk of injury.
5. Potentially explosive environment (ATEX)
The device is not approved for operation or maintenance work in potentially explosive environments
(ATEX).
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