en - Installation notes
5
An isolation device is a switch which ensures a contact opening of
more than 3mm. These include circuit breakers, fuses and contact-
ors (IEC/EN60947).
If the mains supply cannot be permanently disconnected, the isola-
tion device (including plug and socket) must be safeguarded against
being switched on either unintentionally or without authorisation.
Tip: We recommend connecting the tumble dryer to the power supply
via a plug and socket so that it is easier to conduct electrical safety
checks (e.g. during maintenance or repair work).
The tumble dryer must not be connected to devices such as timers
which would switch it off automatically.
If local regulations require that a residual current device (RCD) is in-
stalled, a typeB residual current device (sensitive to universal cur-
rent) must be used.
If local and national installation specifications require equipotential
bonding, good galvanic contact must be guaranteed. Equipotential
bonding must have an earth current rating >10mA.
Hot water connection
An on-site circulation system with feed and return lines is required to
supply the tumble dryer with hot water as an energy source.
For sufficient protection against corrosion, the tumble dryer must
only be operated with heating water in compliance with VDI2035.
A detailed pipework calculation and hydraulic alignment of the overall
system are recommended to ensure adequate heat supply at the ap-
pliance. This applies in particular when connecting multiple appli-
ances to the same heating circuit.
An external circulation pump needs to be installed in the heating cir-
cuit on site to ensure sufficient supply of hot water. The circulation
pump must be selected based on the technical specifications of the
tumble dryer and those of the on-site pipework.
Flexible hose connections that are resistant to pressure and temper-
ature are recommended for the connection of the hot water supply.
The cross-section of the free internal diameter of the connection
hoses must be at least 18mm so that the flow rate throughout the
heating circuit can be maintained at a sufficient level. If it is not, the
programme running time of the drying process is likely to be affected.
A suitable control valve must be fitted in the feed line to control the
incoming flow of hot water. This valve is controlled directly via the
tumble dryer controls. The control valve must be fitted in the direct vi-
cinity of the appliance connection.