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EN-28 Installation and Operating Instructions - EOS Vision

Electrical installation

4.1 General instructions for electrical installation

Ensure that electrical installation is performed in compliance with the

standards and legal norms valid in your country.

Observe the following regulations when installing sauna heaters: IEC

60364-7-703 and/or DIN VDE 0100 part 703:

This most recent version of the standard under amendment of paragraph

703.412.05, states the following:

“The additional protection must be provided for all of the sauna's electric

circuits by one or more residual current devices (RCDs) with a rated differ-

ential current no greater than 30 mA, with the exception of sauna heaters.”

If a residual current device (RCD) is installed, ensure that there are no other

electrical consumers not belonging to the sauna system which are fused

via this RCD.

If the sauna heater has not been used for an extended period of time, the

heater may draw moisture from the ambient air, which, in rare cases, could

lead to the RCD to be tripped. This is a physical process and not a fault on

the part of the manufacturer.

In this case, the heater must be heated by a technician under supervision

which will bypass the RCD function. Once the moisture has escaped from

the heating elements after approx. 10 minutes, the RCD can be integrated

again in the electric circuit.

If the sauna heater will not be used for an extended period of time, we rec-

ommend that you switch on the heater every 6 weeks so that the heating

elements do not accumulate moisture. If, during commissioning, the RCD is

triggered, the electrical installation must be checked again.

The electrician is responsible for properly connecting the heater; thus, the

manufacturer does not assume liability.

4.2 Inner wiring diagrams

The sauna control unit and the heater must be connected as shown in the

circuit diagrams.

Please observe the installation and operating instructions for the sauna

control unit. See also 2.5 Technical data,  EN-12.

EOS Vision User Manual

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