Bosch DRC97AQ50B User Manual And Installation Instructions page 19

Ceiling-mounted ventilation system
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¡ When discharging the exhaust air, the official and
legal regulations, such as the regional building
code., must be observed.
¡ In order to freely access the appliance for servicing,
select an easy-to-reach installation site.
¡ The surfaces of the appliance are sensitive. Avoid
damaging them during installation.
16.6 Instructions for the electrical
connection
In order to safely connect the appliance to the elec-
trical system, follow these instructions.
WARNING ‒ Risk of electric shock!
It must always be possible to disconnect the appliance
from the electricity supply. The appliance must only be
connected to a protective contact socket that has been
correctly installed.
The mains plug for the mains power cable must be
easily accessible after the appliance is installed.
If this is not possible, an all-pole isolating switch
must be integrated into the permanent electrical in-
stallation according to the conditions of overvoltage
category III and according to the installation regula-
tions.
The permanent electrical installation must only be
wired by a professional electrician. We recommend
installing a residual-current circuit breaker (RCCB)
in the appliance's power supply circuit.
Sharp-edged components inside the appliance may
damage the connecting cable.
Do not kink or trap the connecting cable.
¡ The connection data can be found on the rating
plate. → Page 15
¡ The connecting cable is approx. 1.30 m long.
¡ This appliance complies with the EC interference
suppression regulations.
¡ The appliance corresponds to protection class 1.
You should therefore only use the appliance with a
protective earth connection.
¡ Do not connect the appliance to the power supply
during installation.
¡ Only a licensed professional may connect appli-
ances without plugs. They are subject to the require-
ments of the local electricity provider.
16.7 Information on the installation situation
¡ Install this appliance on the kitchen ceiling or a
stable suspended ceiling.
¡ To install additional special accessory parts, ob-
serve the enclosed installation instructions.
¡ The appliance finds it more difficult to draw in the
cooking vapours the further away they are from the
hotplate. For optimum performance, a maximum dis-
tance of 1500 mm is recommended.
¡ The width of the extractor hood must correspond at
least with the width of the hob.
¡ To optimally detect the cooking vapours, install the
appliance in the middle of the hob.
16.8 Instructions for the exhaust air pipe
The appliance manufacturer does not provide any war-
ranty for faults attributable to the pipeline.
¡ Use a short, straight exhaust air pipe with as large a
pipe diameter as possible.
¡ Long, rough exhaust air pipes, many pipe bends or
small pipe diameters reduce the suction power and
increase the fan noise.
¡ Use an exhaust pipe that is made of non-combust-
ible material.
¡ To prevent condensate from returning, fit the ex-
haust pipe with a 1° gradient from the appliance.
Flat ducts
Use flat ducts with an inner cross-section that corres-
ponds to the diameter of the round pipes:
¡ Diameter of 150 mm corresponds to ap-
prox. 177 cm².
¡ Diameter of 120 mm corresponds to ap-
prox. 113 cm².
¡ Use sealing strips for different pipe diameters.
¡ Do not use any flat ducts with sharp bends.
Round pipes
Use round pipes with an inner diameter of 150 mm (re-
commended) or at least 120 mm.
16.9 Installation
Preparing the ceiling
Ensure that the stability of the ceiling is guaranteed
1.
after the cut-outs have been made.
Cover the hob to prevent damage.
2.
Saw a cut-out into the ceiling.
3.
Remove any shavings.
4.
Preparing the appliance
WARNING ‒ Risk of injury!
Components inside the appliance may have sharp
edges.
Wear protective gloves.
Installation instructions en
19

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