Manual Novy 6820 (page 12 of 24) (English, German, Dutch, French)

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−

Condensation may arise as a result of temperature

differences if the extraction duct passes through cool

rooms. Ensure that the extraction duct is insulated.

−

In case of an exhaust pipe through the outside wall

passing a cavity wall, make sure that the exhaust duct

fully bridges the cavity and slightly declines to the

outside.

−

In case of an exhaust pipe through the wall, use a

wall vent.

−

In case of an exhaust pipe through the roof, use a double-

walled roof passage with adequate outlet capacity.

−

When connecting to a short extraction duct, it may

be desirable to install a non-return valve in the duct

in order to prevent backdraught from wind.

− Make sur

e that sufﬁcient air is supplied. Fresh air can

be supplied by slightly opening a window or an outside

door or by installing an inlet grate.

−

The appliance may not be connected to a ﬂue or chim-

ney that is currently in use, or that serves as ventilation

for rooms with hearths.



Air supply

However large the kitchen or the room with open kitchen

is, only so much air can be extracted from the room as

is supplied. Too little air supply could result in a yield

loss of 50% and more.

If the extraction is used at the same time as a combus-

tion system (for example heaters ﬁred by gas, oil, wood

or coal, hot water boilers using gas, gas hobs and gas

ovens), combustion gases may be sucked back in and

lead to poisoning.

A combustion system uses air from the room as com-

bustion air. Combustion gases arise as a result, which

are removed to the outside by an extraction system.

The appliance sucks in air from the kitchen and adjacent

rooms. Negative pressure occurs if the air supply is in-

adequate. The toxic gases are then sucked back from

the chimney or extraction duct into the room.

With simultaneous use of the appliance and combustion

appliances in the same room, the negative pressure may

not exceed 4 Pa (=0.04 mBar). Negative pressure can be

prevented by allowing sufﬁcient air into the room through

openings that cannot be closed (for example through

windows or doors, in combination with a ventilation

cabinet in the wall).

Have an expert assess the overall ventilation system in

your home for a proposal on suitable measures in the

area of air supply.

When using the appliance with an internal or external

motor (unit) with air extraction to the outside, there must

be adequate air supply in the room where the appliance

has been installed / is positioned, so that fresh air can

ﬂow in. Fresh air can be provided by tilting a window,

opening a door or installing an inlet grille.

With an appliance with recirculation, there must be a

minimum of ventilation in the room where the appliance

has been installed / is positioned. Ventilation can be

provided by the overall ventilation in the home or by

tilting a window or opening a door.

Certain appliances are ﬁtted with a connection for a

window contact switch (see the technical speciﬁcations

for your appliance). If the appliance is to operate at the

same time as a heating appliance that needs air from

the room, and if the required supply can only take place

through a single open window, there is the option of

connecting the appliance to a window contact switch

(not included). This ensures that the appliance operates

only when the window is open. If the window is closed,

the fan cannot be switched on.

Contact your technician for the correct accessories for

your appliance.



Installation instructions for the outlet

−

The appliance may only be connected with the power

plug to a socket with an earth (230 V – 50 Hz).

−

Safety is only assured when the appliance is connected

to an earth cable in accordance with the instructions

laid down.

− The appliance must be able to be disconnected from

the power at any desired point.

− Position the socket in such a way that the power plug

of the appliance can be inserted easily.

− Do not use an extension cable for the connection to

the electrical mains.

−

Electric shock: never switch on a faulty appliance, this

could cause an electric shock. Take the power plug out

of the socket, or switch off at the distribution cabinet.

Contact the Novy service department.

− Repairs and replacing faulty or damaged wiring must

only be carried out by technicians who have undergone

instruction by Novy.

−

Moisture that has got into the appliance may cause an

electric shock. Do not use a high pressure or steam

cleaner.

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Novy 6820 Manual

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