Installing 2 Exterior Hoods - Broan HRV90H Series Installation Instructions Manual

3. INSTALLATION (
CONT
3.8 I T
NSTALLING THE ANDEM
3.8.4 C T
ONNECTING ANDEM
2. Join the end of the Tandem Transition to the rear of the exterior backplate. Secure
with 2 Xmas tree pins and seal properly with duct tape.
The exterior backplate must be installed with the word "TOP" pointing
upward.
3. Using 4 no. 8 x 1½" screws, mount the the exterior backplate to the exterior wall. Seal the
outline with caulking.
4. Snap the assembled exterior hood on its backplate and secure with 2 provided screws
(no. 8 x 3/4" long).
3.9 I 2 E
NSTALLING XTERIOR
Choose an appropriate location to install the exterior hoods:
• There must be a minimum distance of 6' (1.8 m)
between the hoods to avoid cross-contamination
• There must be a minimum distance of 18" (457 mm)
from the ground
!
WARNING
Make sure the intake hood is at least 6 feet (1.8 m)
away (or more, as per applicable building codes or
standards) from any of the following:
• Dryer exhaust, high efficiency furnace vent, central
vacuum vent
• Gas meter exhaust, gas barbecue-grill
• Any exhaust from a combustion source
• Garbage bin and any other source of contamination
Refer to figure at right for connecting insulated ducts to
the exterior hoods. An "Anti-gust intake hood" should be
installed in regions where a lot of snow is expected to fall.
' )
D
T K ( ' )
RANSITION IT CONT D
T D E
RANSITION TO THE UAL XTERIOR
CAUTION
H
OODS
H ( ' )
OOD CONT D
E
XHAUST HOOD
I
NTAKE HOOD
18"
(457 )
MM
6'
(1.8 )
M
VD0028
15
X
MAS TREE PIN
VD0085
VD0086
VD0087
6" Ø
(152 )
MM
O
PTIONAL DUCT
18"
(457 )
MM
T
APE AND DUCT TIE
S
CREW
LOCATION
6'
(1.8 )
M
18"
(457 )
MM