Prior To Installation - Bosch DKE9306AUC Installation Instructions Manual

Prior to installation
Exhaust-air mode Fig, 2
The exhaust air is discharged upwards
through a ventilation duct or directly
through the outside wall into the open.
;:_ Exhaust 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.
Sufficient air is needed for proper combu-
stion and exhausting of gases through the
flue (chimney) of fuel burning equipment to
prevent backdrafting. Follow the heating
equipment manufacturers guideline and
safety standards such as those published
by the National Fire Protection Association
(NFPA), the American Society for Heating,
Refrigeration and Air Conditioning
Engineers (ASHRAE), and the local code
authorities.
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.
All legal requirements concerning the
discharge of exhaust air must be observed.
CI Due to size and weight of this unit two
installers are recommended.
CI When cutting or drilling into wall or
ceiling, do not damage electrical wiring
and other hidden utilities.
CI To properly exhaust air, be sure to duct
air outside - do not vent exhaust air into
spaces within walls, ceilings, attics,
crawl spaces, or garages.
[3 WARNING-TO REDUCE THE RISK
OF FIRE, USE ONLY METAL DUCT
WORK.
CI Install this hood in accordance with all
requirements specified.
z_The two lightly sprung flaps must be
able to move upwards (Fig, 3),
If the exhaust air is going to be
discharged into the open, a telescopic
wall box should be fitted into the outside
wall.
For optimum hood efficiency:
Cl Short, smooth air exhaust duct,
CI As few bends in the duct run as
possible.
CI Diameter of duct to be as large as
possible and no tight bends in duct run.
CI Round pipes:
We recommend
Internal diameter: 6".
CI Flat ducts must have an internal cross-
section that equates to that of round
pipes.
There should be no sharp bends.
minimum 3V4"x 10" recommended.
CI If pipes have different diameters:
Insert appropriate transition pieces.
CI Always ensure that there is an adequa-
te supply of fresh air.