Installation instructions

10
Choosing the correct blower
Blower motors
All blower models are sold separately. It is recommended
to use only Thermador blowers with Thermador Pro
ventilation hoods. See the “Ventilation Planning Guide”
for recommended blowers. Contact Customer Service for
additional options (see the back page for contact
information).
Integral, in-line and remote blowers are available through
your authorized Thermador
®
dealer. For local dealer
information, visit the Find a Dealer section of our website
at www.thermador.com.
The blower performance options will vary in cubic feet per
minute (CFM) and is dictated by the cooking surface, the
volume of air that needs to be moved and the length of
the duct run. For long duct runs with multiple turns and
bends, consider using a more powerful blower. For the
most efficient air- ow exhaust, use a straight run or as few
elbows as possible (refer to “Ductwork Preparation”).
Blower options
25 ft. remote and in-line blower extension cable
The 25 ft. remote and in-line blower extension cable
(EXTNCB25W) is available to connect the hood to the in-
line and remote blowers for distances up to 25 ft. The
accessory cable must be purchased separately. DO NOT
use more than one extension cable per installation.
Attaching the hood transition
Discharge Direction
The hood can only be mounted with a vertical discharge.
The exhaust air should be discharged through ducting and
directed to the outside of the building.
Attaching the hood transition
Hoods are supplied with a 10" (254 mm) round transition.
A locally supplied transition is required for other sizes.
1. Align the mounting holes at base of transition over the
mounting holes of the 1/2'' (13 mm) flange located at
the top of the hood.
2. Fasten transition to hood using four (4) 1/4'' (6 mm)
sheet metal screws included with hood.
Note: Screws must not hinder damper operation.
3. Seal connection between transition and hood with
aluminum tape. DO NOT use duct tape. Ensure that
the connection is completely sealed.
4. Remove tape holding damper closed.
Description SKU
Remote blower (mounted to roof or external
wall)
VTR1FZ
VTR2FZ
In-line blower (mounted between kitchen
and external wall)
VTI1FZ
VTI2FZ
Integrated blower (mounted inside the
hood)
VTN1DZ
VTN2FZ
8
(212)
8
(212)
8
(212)
3/3/3/
88
""
inches (mm)