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Installation and Operating Instructions - MEGA
Installation
EN
4.4 General instructions for electrical installation
Observe the following regulations when installing sauna heaters:
DIN VDE 0100 Part 703:
This most recent version of the standard, applicable since February
2006, 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 differential current no greater than 30 mA, with the exception of
sauna heaters.”
EN 60335-1 DIN (VDE 0700 Part 1): 2012-10:
This standard states in section 13.2:
“At operating temperature, the leakage current may not exceed the fol-
lowing values:
- for stationary class I heating appliances: 0.75 mA or 0.75 mA per kW
rated power input of the heating unit, whichever is higher, up to a
maximum of 5 mA.”
If a residual current device (RCD) is installed, ensure that no other electrical
consumers are fused via this RCD.
By current technological standards, it is not advisable to use vapour-proof
tubular heating elements for sauna heaters. It is possible that the magne-
sium oxide filling in the heaters can draw some moisture from the ambient
air through the vapour diffusion silicone stopper, which, in some cases, can
lead to tripping of the RCD. 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 has not been used for a longer 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 heaters; thus, the
manufacturer does not assume liability.
