Operation With Dsm 400 Control Module; Connection To A Window Contact Switch; Potential Free Connection - Miele DA 270-4 Operating And Installation Instructions

Operation with DSM 400 control module

The Miele DSM 400 control module can
be used to combine the cooker hood
with other components.
It enables the following:
Connection to a window contact
switch
If adequate ventilation to the room can
only be ensured by having a window
open when the cooker hood is in use at
the same time as a heating appliance
which depends on the air from the
same room, then the control module
can be used to connect a window
contact switch (not supplied) to the
appliance.
Once connnected, the cooker hood can
only be operated when the window is
sufficiently open (see also "Warning
and Safety instructions").
When the window is closed, the cooker
hood fan cannot be switched on. The
indicator lamp for the On/Off touch
control on the cooker hood will flash.
The same applies to operation with an
external motor (depending on model).
The cooker hood lighting is not affected
by this.
...EXT models can also be connected to
a window contact switch.
Take care when ventilating the room
through an open window that ventilation
is not impaired by a closed blind or
curtain.
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If the control module is
disconnected in order to operate the
cooker hood without the window
contact switch (e.g. after moving
house) the cooker hood electronics
must be reset by a Miele service
technician.

Potential free connection

This enables a further appliance to be
controlled by the switch setting on the
cooker hood fan.
– For instance it can be used to ensure
a sufficient supply of fresh air when
the cooker hood and a heating
appliance which also depends on
the air in the room are being used
together, by switching on an air
intake fan, or opening a motorised
inlet flap as soon as the cooker hood
fan is switched on.
It is important to ensure that the fan
power is sufficient and that the air
intake has a suitable cross-sectional
diameter.
– If a sufficient air intake cannot be
guaranteed, then the potential free
contact will enable a heating
appliance, which depends on air in
the same room as a cooker hood, to
be switched off when the cooker
hood is in operation.
See also "Warning and Safety"
instructions.