Miele DA 270-4 EXT Alu Operating And Installation Instructions - Page 7

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In order to ensure safe operation, and

to prevent gases given off by the

heating appliances from being drawn

back into the room when the cooker

hood and the heater are in operation

simultaneously, an underpressure in the

room of 0.04 mbar (4 pa) is the

maximum permissible.

Ventilation can be maintained by air

inlets which cannot be blocked, in

windows, doors and outside wall vents,

or by other technical measures, such

as ensuring that the cooker hood can

only be switched on when the heating

appliance is switched off or vice versa.

A ventilation brick alone is not generally

sufficient to ensure safe ventilation.

The overall ventilation condition

of the dwelling must be taken into

account. If in any doubt, the advice

of a competent builder or, for gas, a

"Corgi" installer, must be sought.

Warning and Safety instructions

One of the following technical

measures may be necessary to ensure

safe operation.

– If the only way of ensuring adequate

ventilation is via an open window, a

window contact switch should be

fitted to ensure that the cooker hood

can only operate when the window is

opened sufficiently. A window

contact switch kit is available from

good builders' merchants.

Take care when ventilating the room

through an open window that

ventilation is not impaired by a

closed blind or curtain.

– The cooker hood can be set up to

automatically switch on an air intake

fan or open a motorised inlet flap

when it is switched on.

– The cooker hood can be set up to

automatically switch off a heating

appliance which also depends on

the air from the room when it is

switched on.

The Miele DSM 400 control module

offers the possibility of combining other

components with the cooker hood (see

"Operation with Control module DSM

400").

It is available to purchase as an

optional extra.

If in any doubt, the advice of a

competent builder or, for gas, a

"Corgi" installer, must be sought.

If the hood is being operated in

recirculation mode, the above

restrictions do not apply.