Before You Begin; Ducting; External Venting Requirements - Sirius Range Hoods SUT900 Installation Instructions Manual

The manufacturer declines all responsi-
bility in the event of failure to observe the
instructions given here for installation,
maintenance and suitable operation of
the product. The manufacturer further
declines all responsibility for injury due
to negligence and the warranty of the
unit automatically expires due to impro-
per maintenance and/or installation.
(Not applicable if the range hood is used
in re-circulating mode).
WARNING: Do not vent this appliance
into any other ductwork, spaces between
walls, ceilings, attics, garages or any
other confined space.

External Venting Requirements.

When planning new ductwork, always
look for the most direct route to the ou-
tside. Venting can be done through the
roof or directly through the back outside
wall. (See Figure 1 and 2) Only use ri-
gid type metal ducting (plastic ducting is
generally not permitted by code). Flexi-
ble ducting could restrict airflow by up
to 50%.
fig. 1
4
B E FOR E Y OU BEG I N
D UC TI NG
BEFORE YOU BEGIN: It is advisable to test
run the range hood before installation.
BEFORE STARTING – please read this en-
tire document and ensure you are fully
conversant with the require-ments and
limitations. These units weigh approxi-
mately 125lbs and therefore require a
minimum of two people to install.
Always fasten connections with sheet metal
screws and tape all joints with certified Sil-
ver Tape or Duct Tape. Do not use screws
to fasten ductwork to the hood, only use
tape as the screws will stop the dampers
from opening and your hood will not work.
This hood re-quires a 6"
cook top 8" is recommended
outlet. You can increase the duct size of
the duct run but never decrease it. Use
the shortest and most direct route possi-
ble. Always, wherever possible, reduce the
number of transitions and turns with as
few sharp angles as possible. Two stagge-
red 45 degree angles are better than one
90 degree. Make these turns as far away
from the motor exhaust as possible, with
as much space between each bend.
18" from the hood to the first elbow.
fig. 2
if it's gas or gas
round duct
Need