NEFF D91T7N0GB User manual

Installation instructions and
how to use and look after your
built-in cooker hoods
D91T7
NEFF (UK) Ltd

2
Abb. 1
ELECTRO
Fig. 1
GAZ

3
Appliance description
Operating Instructions
Operating modes
Operating modes
Exhaust-air mode:
❑The extractor-hood fan extracts the kit-
chen vapours and conveys them through
the grease filter into the atmosphere.
❑The grease filter absorbs the solid
particles in the kitchen vapours.
❑The kitchen is kept almost free of grease
and odours.
DWhen the extractor hood is operated
in exhaust-air mode simultaneously with
a different burner which also makes use
of the same chimney (such as gas, oil or
coal-fired heaters, continuous-flow heaters,
hot-water boilers) care must be taken to
ensure that there is an adequate supply
of fresh air which will be needed by the
burner for combustion.
Safe operation is possible provided that the
underpressure in the room where the
burner is installed does not exceed 4 Pa
(0.04 mbar).
This can be achieved if combustion air can
flow through non-lockable openings, e.g. in
doors, windows and via the air-
intake/exhaust-air wall box or by other
technical measures, such as reciprocal
interlocking, etc.
If the air intake is inadequate, there is a
risk of poisoning from combustion gases
which are drawn back into the room.
An air-intake/exhaust-air wall box by itself is
no guarantee that the limiting value will not
be exceeded.
Note: When assessing the overall
requirement, the combined ventilation
system for the entire household must be
taken into consideration. This rule does not
apply to the use of cooking appliances,
such as hobs and ovens.
Unrestricted operation is possible if the
extractor hood is used in recirculating mode
– with activated carbon filter.
Circulating-air mode:
❑An activated carbon filter must be fitted
for this operating mode (see Filters and
maintenance).
The complete installation set and
replacement filters can be obtained from
specialist outlets.
The corresponding accessory numbers
can be found at the end of these
operating instructions.
❑The extractor-hood fan extracts the
kitchen vapours which are purified in the
grease filter and activated carbon filter
and then conveyed back into the
kitchen.
❑The grease filter absorbs the grease
particles in the kitchen vapours.
❑The activated carbon filter binds the
odorous substances.
If no activated carbon filter is installed,
it is not possible to bind the odorous
substances in the cooking vapours.
Lighting
Light / fan
switches
Filter grille
Chimney
panelling

4
Before using for the first time
Important notes:
❑The Instructions for Use apply to several
versions of this appliance. Accordingly,
you may find descriptions of individual
features that do not apply to your
specific appliance.
❑This extractor hood complies with all
relevant safety regulations.
Repairs should be carried out by
qualified technicians only.
Improper repairs may put the user at
considerable risk.
Do not flambé food directly under the
extractor hood.
Risk of grease filter catching fire due
!to flames.
The hotplates must always be covered
with a utensil.
Restrictions apply to the use of the
extractor hood over a solid-fuel burner
(coal, wood, etc.). (See Installation
instructions).
Gas hobs / Gas cookers
Do not use all the gas hotplates
simultaneously for a prolonged period
(max. 15 minutes) at maximum thermal
load, otherwise there is a risk of burns if the
housing surfaces are touched or a risk of
damage to the extractor hood. If the
extractor hood is situated over a gas hob,
operate the hood at maximum setting if
three or more gas hotplates are operated
simultaneously.
❑Before using your appliance for the first
time, please read these Instructions for
Use carefully. They contain important
information concerning your personal
safety as well as on use and care of the
appliance.
❑Please retain the operating and
installation instructions for a subsequent
owner.
Do not use the appliance if damaged.
The appliance is not intended for use
by young children or infirmed persons
without supervision.
Young children should be supervised to
ensure they do not play with the appliance.
If the connecting cable for this
appliance is damaged, the cable must be
replaced by the manufacturer or his
customer service or a similarly qualified
person in order to prevent serious injury to
the user.
The appliance may be connected to
the mains by a qualified technician only.
Dispose of packaging materials
properly (see Installation instructions).
This extractor hood is designed for
domestic use only.
Light bulbs must always be fitted when
the extractor hood is in use.
Defective bulbs should be replaced
immediately to prevent the remaining bulbs
from overloading.
Never operate the extractor hood
without a grease filter.
Overheated fat or oil can easily catch
fire.
If you are cooking with fat or oil, e.g. chips,
etc., never leave the cooker unattended.

5
Intensive setting:
Maximum power is obtained at the
intensive setting. It is only required for short
intervals.
❑Keep pressing the +button until a ç
appears in the display.
❑If the intensive setting is not cancelled by
hand, the fan will automatically switch
back to step }after 10 minutes.
Fan follow-on:
❑Press the button.
The fan runs for 10 minutes at the
selected setting and !is displayed.
Then the fan automatically switches off.
Lighting:
❑Briefly press the abutton to switch the
light on and off.
❑The light can be switched on at any
time, even though the fan is switched off.
❑Adjusting the brightness:
Hold down the abutton until the
desired brightness is obtained.
Switching on the light automatically, e.g.
via a timer:
❑Fan and light must be switched off.
Switching on:
Simultaneously press the – and !
buttons.
❑After approx. 3 seconds the light
switches on to acknowledge the setting.
Switching off:
Repeat the process with the light switched
on.
❑After approx. 3 seconds the light
switches off to acknowledge the setting.
Operating procedure
Acoustic signal:
❑When a button is pressed, this is verified
by an acoustic signal.
Switching off the acoustic signal:
❑Simultaneously press buttons 0and +
until a signal is emitted after approx. 3
seconds.
Switching on the acoustic signal:
❑Repeat the process.
Switching the fan ON
❑Press the + button.
Setting the required fan speed:
❑Press the + button.
The fan speed is increased by one step.
❑Press the – button.
The fan speed is reduced by one step.
Switching the fan OFF:
❑Press the 0button.
The displayed {goes out shortly
afterwards.
Or:
❑Keep pressing the –button until the fan
switches off.
The displayed {goes out shortly
afterwards.
The most effective method of removing
vapours produced during cooking is to:
❑Switch the ventilator ON
as soon as you begin cooking.
❑Switch the ventilator OFF
a few minutes after you have finished
cooking.
Light
Fan OFF Reduce fan
speed
Fan ON and
increase speed
Display for fan setting
Fan follow-on
Saturation indicator

6
Grease filters:
Metal filters are used to trap the greasy
element of the vapours that develop
during cooking.
The filter mats are made from non-
combustible metal.
Caution:
As the filter becomes more and more
saturated with grease, not only does the
risk of it catching fire increase but the
efficiency of the extractor hood can also be
adversely affected.
Important:
By cleaning the metal grease filters at
appropriate intervals, the possibility of them
catching fire as a result of a build-up of heat
such as occurs when deep-fat frying or
roasting is taking place, is reduced.
Saturation indicator: U
When the grease filters reach saturation
point, an acoustic signal is sounded for
6 seconds after the fan has switched off,
and an Jappears in the display. The
grease filters should be cleaned straight
away.
Cleaning the metal grease filters:
❑In normal operation (1 to 2 hours daily),
the metal grease filter must be cleaned
1 x a month.
❑The filters can be cleaned in a dish-
washer. It is however possible that they
will become slightly discoloured.
❑The filter must be placed loosely, and
NOT wedged, in the dishwasher.
Important:
Metal filters that are saturated with
grease should not be washed together
with other dishes etc.
❑When cleaning the filters by hand, soak
them in hot soapy water first of all.
Do not use aggressive, acidic or caustic
cleaners.
Then brush the filters clean, rinse them
thoroughly and leave the water to drain off.
Removing and inserting the metal grease
filters:
Warning: The halogen bulbs must be
switched off and cool.
1. Pull down the catch on the grease filters
in the direction of the arrow and fold
down the grease filters.
Filters and maintenance
2. Detach the grease filters.
3. Clean the grease filter.
4. Insert the clean filters back into the
hood.
5. Cancel the Jin the display.
❑Press the Jbutton.

7
Saturation indicator: Ub
When the activated carbon filter reaches
saturation point, an acoustic signal is
sounded for 6 seconds after the fan has
switched off, and a J b appears in the
display. The activated carbon filter should
be replaced straight away.
Removing the filter:
Warning: The halogen bulbs must be
switched off and cool.
1. Remove the metal filters.
2. Press the catches at both sides of the
filter inwards and lift the carbon filter
down and out.
Filters and maintenance
3. Engage the catches at both sides.
4. Insert the metal grease filters (see
"Removing and inserting the metal
grease filters").
5. Cancel the Jin the display.
❑Press the Jbutton.
3. Insert the metal grease filters.
Replacing the activated carbon filter:
❑During normal operation (1 to 2 hours
per day) the activated carbon filters
should be replaced approximately 1 x
year.
❑A replacement filter can be obtained
from any authorized dealer (see optional
accessories).
❑Use original filters only.
By doing so you will obtain maximum
performance from your extractor hood.
Disposing of the old activated carbon
filter:
❑There are no pollutants in the activated
carbon filters. They can therefore be
disposed of as part of your normal
domestic refuse.
Activated carbon filter:
For neutralizing odours in recirculating
mode.
Caution:
As the filter becomes more and more
saturated with grease, there is an increased
risk of fire and the function of the extractor
hood may be impaired.
Important:
Change the activated carbon filter promptly
to prevent the risk of fire from the
accumulation of heat when deep-fat frying
or roasting.
Inserting the filter:
Warning: The halogen bulbs must be
switched off and cool.
1. Remove the metal-mesh filters
(see "Removing and inserting the metal-
mesh grease filters").
2. Insert the activated carbon filter.

8
Cleaning and care
Isolate the extractor hood by pulling out
the mains plug or switching off the fuse.
❑When cleaning the grease filters, remove
grease deposits from accessible parts of
the housing. This prevents the risk of fire
and ensures that the extractor hood
continues operating at maximum
efficiency.
❑Clean the extractor hood with a hot soap
solution or a mild window cleaner.
❑Do not scrape off dried-on dirt but wipe
off with a damp cloth.
❑Do not use scouring agents or abrasive
sponges.
❑Note: Do not use alcohol (spirit) on
plastic surfaces, as dull marks may
appear.
Caution: Ensure that the kitchen is ade-
quately ventilated. Avoid naked flames!
Clean the operating buttons with a mild
soapy solution and a soft, damp cloth only.
Do not use stainless-steel cleaner to clean
the operating buttons.
Stainless steel surfaces:
❑Use a mild non-abrasive stainless steel
cleaner.
❑Clean the surface in the same direction
as it has been ground and polished.
Do not use any of the following to clean
stainless steel surfaces: abrasive sponges,
cleaning agents containing sand, soda, acid
or chloride!
Aluminium and plastic surfaces:
❑Use a soft, non-linting window cloth or
micro-fibre cloth.
❑Do not use dry cloths.
❑Use a mild window cleaning agent.
❑Do not use aggressive, acidic or caustic
cleaners.
❑Do not use abrasive agents.
4. Re-insert the bulb ring.
5. Restore the power by inserting the mains
plug or switching on the fuse.
Note: If the light does not function, check
that the bulbs have been inserted correctly.
Replacing the light bulbs
1. Switch off the extractor hood and pull
out the mains plug or switch off the
electricity supply at the fuse box.
When switched on, the halogen bulbs
become very hot. Even for some time after
the bulbs have been switched off there is
still a risk of burns.
2. Remove the bulb ring with a screwdriver
or similar tool.
3. Replace the halogen light bulb
(conventional halogen bulb, 12 Volt,
max. 20 Watt, G4 bulbholder).
Caution: Plug-in bulbholder.
Take hold of the bulb with a clean cloth.

9
If you encounter a problem
If an Jor ãappears in the display:
❑See "Filters and maintenance" Section.
If is not possible to operate the extractor
hood:
❑Disconnect the extractor hood from the
mains electricity supply by pulling out the
plug or switching it off at the main fuse
box.
Wait for approx. 1 minute and then
switch it on again.
If you have any questions or if a fault
occurs, please call Customer Service.
(See list of Customer Service
representatives).
When you call, please quote the following:
Setting the saturation indicator
If it becomes necessary to change the
operating mode (exhaust-air/recirculating
mode), the saturation indicator for the filters
must also be altered (see Installation
Instructions).
E-Nr. FD
Enter the relevant numbers into the box
above. The E-Nr. (product no.) and FD
(production date) are shown on the
nameplate which can be seen inside the
extractor hood after the filter frame has
been detached.

10
Important information
Installation Instructions:
Additional information concerning gas
cookers:
When installing gas hotplates, comply
with the relevant national statutory
regulations (e.g. in Germany: Technische
Regeln Gasinstallation TRGI).
Always comply with the currently valid
regulations and installation instructions
supplied by the gas appliance
manufacturer.
Only one side of the extractor hood
may be installed next to a high-sided unit
or high wall. Gap at least 50 mm.
Minimum distance on gas hotplates
between the upper edge of the trivet
and lower edge of the extractor
hood: 650 mm, Fig. 1.
Old appliances are not worthless
rubbish. Valuable raw materials can be
reclaimed by recycling old appliances.
Before disposing of your old appliance,
render it unusable.
You received your new appliance in a
protective shipping carton. All packaging
materials are environmentally friendly and
recyclable. Please contribute to a better
environment by disposing of packaging
materials in an environmentally-friendly
manner.
Please ask your dealer or inquire at your
local authority about current means of
disposal.
The extractor hood can be used in
exhaust air or circulating air mode.
Always mount the extractor hood over
the centre of the hob.
Minimum distance between electric
hob and bottom edge of extractor hood:
550 mm, Fig. 1.
The extractor hood must not be
installed over a solid fuel cooker – a
potential fire hazard (e.g. flying sparks) –
unless the cooker features a closed,
non-removable cover and all national
regulations are observed.
The smaller the gap between the
extractor hood and hotplates, the greater
the likelihood that droplets will form on the
underside of the extractor hood.

11
Prior to installation
The exhaust air is discharged upwards
through a ventilation shaft or directly
through the outside wall into the open.
DExhaust air should neither be directed
into a smoke or exhaust flue that is
currently used for other purposes, nor into
a shaft that is used for ventilating rooms in
which stoves or fireplaces are also located.
Exhaust air may be discharged in
accordance with official and statutory
regulations only (e.g. national building
regulations).
Local authority regulations must be
observed when discharging air into smoke
or exhaust flues that are not otherwise in
use.
DWhen the extractor hood is operated
in exhaust-air mode simultaneously with
a different burner which also makes use
of the same chimney (such as gas, oil or
coal-fired heaters, continuous-flow heaters,
hot-water boilers) care must be taken to
ensure that there is an adequate supply
of fresh air which will be needed by the
burner for combustion.
Safe operation is possible provided that the
underpressure in the room where the
burner is installed does not exceed 4 Pa
(0.04 mbar).
This can be achieved if combustion air can
flow through non-lockable openings, e.g. in
doors, windows and via the air-
intake/exhaust-air wall box or by
other technical measures, such
as reciprocal interlocking, etc.
If the air intake is inadequate, there is a
risk of poisoning from combustion gases
which are drawn back into the room.
An air-intake/exhaust-air wall box by itself
is no guarantee that the limiting value will
not be exceeded.
Note: When assessing the overall
requirement, the combined ventilation
system for the entire household must be
taken into consideration. This rule does not
apply to the use of cooking appliances,
such as hobs and ovens.
Unrestricted operation is possible if the
extractor hood is used in recirculating
mode – with activated carbon filter.
If the exhaust air is going to be
discharged into the open, a telescopic
wall box should be fitted into the outside
wall.
Exhaust-air mode

12
Prior to installation
For optimum extractor hood efficiency:
❑Short, smooth air exhaust pipe.
❑As few bends in the pipe as possible.
❑Diameter of pipe to be as large as
possible and no tight bends in pipe.
If long, rough exhaust-air pipes,
many pipe bends or smaller pipe
diameters are used, the air extraction
rate will no longer be at an optimum
level and there will be an increase in
noise.
❑Round pipes:
We recommend
Internal diameter: 150 mm (at least
120 mm).
❑Flat ducts must have an internal cross-
section that equates to that of round
pipes.
There should be no sharp bends.
l120 mm approx. 113 cm2
l150 mm approx. 177 cm2
❑If pipes have different diameters:
Insert sealing strip.
❑For exhaust-air mode, ensure that
there is an adequate supply of fresh air.
Circulating-air mode
❑With activated carbon filter if exhaust-air
mode is not possible.
❑Attach the exhaust-air pipe to the
reducing connector.
The complete
installation set can
be obtained from
specialist outlets.
The corresponding
accessory numbers
can be found at the
end of these opera-
ting instructions.
Connecting a l150 mm exhaust-air
pipe:
❑Mount the pipe directly onto the air
outlet on the hood.
Connecting a l120 mm exhaust-air
pipe:
❑Attach the reducing connector directly
to the air pipe.

Prior to installation
Preparing the ceiling
❑The ceiling must be flat and horizontal.
❑Ensure that the ceiling is capable of pro-
viding a firm hold for mounting screws
and plugs. The enclosed plugs are sui-
table for concrete and stonework. If the
ceiling is made of any other material,
use appropriate mounting components.
Electrical connection
WARNING: THIS APPLIANCE MUST BE
EARTHED
IMPORTANT: Fitting a Different Plug:
The wires in the mains lead are coloured in
accordance with the following code:
Green and Yellow – Earth
Blue – Neutral
Brown – Live
If you fit your own plug, the colours of
these wires may not correspond with the
identifying marks on the plug terminals.
This is what you have to do:
1. Connect the green and yellow (Earth)
wire to the terminal in the plug marked
‘E’ or with the symbol ( ), or
coloured green or green and yellow.
2. Connect the blue (Neutral) wire to the
terminal in the plug marked ‘N’ or
coloured black.
3. Connect the brown (Live) wire to the
terminal marked ‘L’, or coloured red.
The extractor hood should only be
connected to an earthed socket that has
been installed according to relevant
regulations.
If possible, site the earthed socket directly
above the chimney panelling in the ceiling.
Electrical data:
Are to be found on the name plate inside
the appliance after removal of the filter
frame.
Before undertaking any repairs,
always disconnect the extractor hood from
the electricity supply.
Length of the connecting cable: 1.30 m.
If it is necessary to wire the extractor
hood directly into the mains:
The extractor hood should only be
connected to the electricity supply by a
properly qualified electrician.
A separator must be installed in the house-
hold circuit. A suitable separator is a switch
that has a contact gap of more than 3 mm
and interrupts all poles. Such devices
include circuit breakers and contactors.
If the connecting cable for this applian-
ce is damaged, the cable must be replaced
by the manufacturer or his customer
service or a similarly qualified person in
order to prevent serious injury to the user.
This extractor hood corresponds to EC
regulations concerning RF interference
suppression.
Changing over from exhaust-
air to recirculating mode
Changing the electronic control system
to recirculating mode:
❑The standard factory setting is for
operation in exhaust-air mode.
❑To change the mode, the extractor hood
must have been connected up and
should be switched off.
1. Press and hold the 0button.
2. While {is displayed, press the
button until ãis displayed. When this
has taken place, release the buttons.
❑ãgoes out shortly afterwards.
The electronic control system will then
have been set to recirculating mode.
❑By repeating steps 1and 2, you can
change the electronic control system
back to exhaust-air mode (#in display).
Weight in kg:
Exhaust air Recirculating air
38,6 39,3
We reserve the right to construction changes within the
context of technical development.
13

14
Installation
The extractor hood is designed to be
fitted to the kitchen ceiling or a rigid
suspended ceiling.
Ensure that the minimum distance
between hotplate and extractor hood is
550 mm for electric hotplates and 650 mm
for gas hotplates.
1. Mark the centre point of the extractor
hood on the ceiling.
2. Using the template, mark screw
positions on the ceiling.
3. Drill 4x 8 mm holes and insert wall plugs
flush with the ceiling.
4. Determine the overall height of the
support frame.
–This is the height of the ceiling, the
height of the base and the distance
between the hob and extractor hood.
Exhaust air
430 - 710
Circulating air
430 - 750
min. 550 electric
650 gas

15
Installation
08. Insert the extractor hood over the
installation aids on the support frame.
5. Screw together the upper and lower
sections of the support frame at the
specified overall height with 8 screws.
10. Align the extractor hood. To do this,
loosen the ceiling screws in the support
frame.
09. Screw the extractor hood to the support
frame and screw back the panel.
6. Screw the support frame to the ceiling
with 4 screws.
7. Remove the panel.
Exhaust air
430 – 710
Circulating air
430 – 750

16
Installation
11. Connect the pipes.
12. Connect the power.
13. Carefully remove the protective foil.
15. Push up the upper flue section and
screw into position.
16. Insert the two sections of the lower flue
and clip together.
Protect the extractor hood from
damage.
14. Place the two sections of the upper flue
on the extractor hood and clip together.
Protect the extractor hood from
damage.

17
Notes

18
Notes

19
351210
Z5120X5

9000 032 337
Printed in Germany 0905 Es.
NEFF (UK) Ltd.
Grand Union House,
Old Wolverton Road,
Old Wolverton
Milton Keynes, MK12 5PT
Tel: [phone]
Fax: [phone]