Thermador An American Icon HPWB30 Manual Del Usuario página 6

Typical installation
The height from the countertop to the bottom of the hood is 30" to 36".
These hoods are not recommended to be used over indoor grills.
. Choose vent options
The hood is designed to be used for vertical discharge as shown below.
Note: see also Fig. 1-2-3 for Cabinet preparation.
Install a 1/2" conduit from the service panel long enough to reach the hood
once it is installed. Power supply must be rated for 120 VAC, 60Hz. 15 or 20A.
Examples of possible ducting
Ceiling
Transition
*Deflector
Blower
*Charcoal filters
Hood .
Filter
30" to 36"
RECIRCULATING
* Optional accessory - Ductless recirculation kit
* Only for 30" model
Round duct
Ceiling Transition
Blower
Hood .
Filter
* Charcoal filters
30" to 36"
VERTICAL DISCHARGE