Sirius Range Hoods SUF1 - Manual (Page 4)

D U C T I N G
(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.
B E F O R E Y O U B E G I N
The manufacturer declines all
responsibility 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 improper maintenance and/or
installation.
BEFORE YOU BEGIN:
It is advisable to test run the
range hood before installation.
Please read this entire manual and
ensure that you are fully conversant
with the requirements and limitations
direct route possible. Always,
wherever reduce the number of
transitions and turns with as few
sharp angles as possible.
1
Figure 1
Two staggered 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.
External Venting Requirements
When planning new ductwork, always
look for the most direct route to the
outside. Venting can be done through
the roof or directly through the back
outside wall. (See Figure 1 )
Only use rigid type metal ducting
(plastic ducting is generally not permit-
ted by code). Flexible ducting could
restrict airflow by up to 50%. Always
fasten connections with sheet metal
screws and tape all joints with certified
Silver 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 requires a 6” round duct outlet.
You can increase the duct size of the
duct run but never decrease it. Use
the shortest and most