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PDR 908 EL en-US
11 278 890/06 13
Installation and planning notes
Installation requirements
The tumble dryer should only be connected to a power supply
provided in accordance with all appropriate local and national
legislation and regulations.
In addition, all regulations issued by the appropriate utilities as well as
standards relating to occupational safety and all applicable valid
regulations and technical standards must be observed.
General operating conditions
Ambient temperature in installation room: +35°F to +95 (+2°C to
+35°C).
Electrical connection
This tumble dryer is supplied with a power cord and plug ready for
connection.
The machine may only be connected to an electrical system that
conforms to national and local codes and regulations. This connection
must be made by a qualified electrician.
The data tag indicates the nominal power consumption and the
appropriate fuse rating. Compare the specifications on the data tag
with those of the electrical power supply.
The tumble dryer can either be hard-wired or connected using a plug-
and-socket connection in accordance with IEC 60309-1. Miele always
recommends connecting the machine via a plug and socket so that
electrical safety checks can be carried out easily (during repair or
service work, for example).
If the machine is hard-wired, a dual circuit breaker must be provided
on site. When switched off, there must be an all-pole contact gap of at
least 3 mm in the isolator switch (including circuit breakers, breakers,
and relays according to IEC/EN 60947).
The plug connector or isolator switch should be easily accessible at all
times. If the tumble dryer is disconnected from the electricity supply,
the isolator must be lockable or the point of disconnection must be
monitored at all times.
New connections, modifications to the system, or servicing of the
ground conductor, including determining the correct fuse rating, must
be carried out by a qualified electrician, as they are familiar with the
pertinent regulations and the specific requirements of the electric
utility company.
If converting the tumble dryer to an alternative voltage, observe the
instructions in the wiring diagram. Conversion must be performed
by Miele Technical Service or by an authorized Miele dealer. The
heater rating must also be adapted.
The tumble dryer must not be connected to devices such as timers
which would switch it off automatically.
References to cable cross-sections in the technical data refer only to
the required power cord. Please consult relevant local and national
regulations when calculating any other wire gauges.
Vent connection
Hot moist exhaust air should be vented to atmosphere along the
shortest possible route or connected to a suitable vent system.
Depending on the duct path, the moist exhaust air can condense on
the duct walls to a greater or lesser extent. For this reason it is
recommended to lay ducting with a downwards slope to the air exit.
If ducting slopes upwards, a condensate trap either with a drip tray or
a connection to a suitable on-site floor drain must be installed in the
system at the lowest point.
Condensate must not flow back into the machine.
It is permissible to vent exhaust air via an external wall. In this case,
measures must be taken to minimize the risk and annoyance to
neighboring buildings.
The end of exhaust air ducting leading into the open should be
protected against the elements, e.g., using a suitable hood or grille or
with a 90° bend.
The cross-sectional area of the ducting must not be reduced or
obstructed by built-in parts. Filters and louvers must not be installed in
the ducting.
Congestion in the line may lead to a drop in machine performance or
to machines being switched off to guarantee safety.
Proper functioning of the tumble dryer cannot be guaranteed if the
max. permissible pressure loss is exceeded in the on-site vent
ducting system.
When connecting several tumble dryers to a common duct, the cross-
sectional area of the duct must be increased accordingly.
Additionally, in such a case every tumble dryer must have its own
non-return valve to prevent dryers affecting others in the system. This
requires the provision of on-site additional parts.
In the event that exhaust air ducts from several tumble dryers are
merged into a common duct, a non-return device should be
installed in each separate line to prevent backflow.
With complex ducting with many bends and additional components, or
with the connection of several different machines to a common duct, it
is recommended that a detailed calculation is carried out by a suitable
specialist.
Air intake
The air supply for the tumble dryer is taken directly from the
installation site.
During operation, adequate ventilation of the installation site should be
guaranteed. Depending on the machine version, it is necessary to
ensure an intake of fresh air to compensate for the volume of exhaust
air extracted in order to avoid the creation of a vacuum.
It should not be possible to close or otherwise obstruct air intake
grilles or alternative measures should be implemented to ensure that
an adequate supply of fresh air is available at all times during tumble
dryer operation.
Equipotential bonding and grounding
If necessary, an equipotential bond with good contact connection must
be provided in accordance with all appropriate national and local
regulations.
Connection material for equipotential bonding and grounding must be
provided on site or using a kit available from Miele Technical Service.
Peak load/Energy management
The machine can be connected to a peak-load or energy-
management system using an optional kit.
When the peak-load function is activated, the heating is deactivated.
A message appears in the display to inform you of this.
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