Step 2: Preparing The Ceiling - Thermador HMIB40HS Installation Instructions Manual

PRIOR TO INSTALLATION
Circulating-air mode
With activated carbon filter if exhaust-air
mode is not possible.
For optimum hood efficiency:
K Short, smooth duct pipe.
K As few bends in the ducting as possible.
K Diameter of ducting to be as large as
possible and no tight bends in ducting.
If long, rough exhaust-air ducting,
many ducting 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.
IMPORTANT: The manufacturer of the
hood accepts no liability for
complaints which can be attributed to
the design and layout of the duct-
work.
K Round pipes:
We recommend
Internal diameter: 6".
K Flat ducts must have an internal cross-
section that equates to that of round
pipes.
There should be no sharp bends.
l 6" approx. 50.3 inches
K If pipes have different diameters:
Insert sealing strip.
K For exhaust-air mode, ensure that
there is an adequate supply of fresh air.
CONNECTING A l 6" EXHAUST-AIR
DUCT:
K Mount the duct directly onto the air out-
let on the hood.

Step 2: PREPARING THE CEILING

K The ceiling must be flat and horizontal.
K Make sure that the ceiling can bear the
applied loads.
K The provided screws and wall plugs are
suitable for solid masonry. On all other
wall types (e. g. plasterboard, porous
concrete, Poroton bricks) use the appro-
priate fasteners.
K Ensure that the ceiling is capable of pro-
viding a firm hold for mounting screws
and plugs.
Weight: ca. 49 kg / 108 lb
We reserve the right to construction
changes within the context of technical
development.
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