Broan HRV90HT Guia De Instalacion página 14

3. INSTALLATION (
3.8 I T
NSTALLING THE ANDEM
3.8.1 C
ONNECTION TO TANDEM
1. For each duct, pull back the insulation to expose the interior flexible duct.
2. Connect the interior flexible duct to the smaller part of the Tandem Transition (5" oval) using a tie wrap.
3. Pull the insulation over the joint. Pull the vapor barrier over the insulation.
4. Apply duct tape gently to the joint in order to make an airtight seal. See figures below.
E
1
DUCT ON TOP
VJ0025
3
VJ0023
3.8.2 A D
SSEMBLING UAL
Exterior dual hood is coming in separate parts. Using 2 no. 8 x 3/4" screws, assemble the
top metal screen and the plastic grille to the dual exterior hood. Then, slide the bottom metal
screen to the dual exterior hood. See illustration at right.
*Patented.
3.8.3 L D
OCATING THE
The dual exterior hood must be installed at a minimum distance of 18 inches (457 mm) from the ground.
See illustration at right.
Make sure this hood is at least 6 feet (1.8 m) away (or more, as per applicable building codes or
standards) from sources of contamination such as:
• High efficiency furnace vent
• Any exhaust from a combustion source
• Gas meter exhaust, gas barbecue-grill
• Garbage bin
3.8.4 C T
ONNECTING ANDEM
1. Using a jig saw, cut a 6" diameter hole in the exterior wall and insert the Tandem
transition through this hole.
The Tandem Transition must be inserted in such a way that the Exhaust air to outside duct will be located on the top.
' )
CONT D
T K ( ' )
RANSITION IT CONT D
T
RANSITION
XHAUST AIR TO OUTSIDE
E H *
XTERIOR OOD
E H
UAL XTERIOR OOD
!
T D
RANSITION TO THE UAL
2
VJ0022
4
VJ0024
WARNING
E H
XTERIOR OOD
CAUTION
14
VO0024
VD0083A
VD0084
1) E
XHAUST AIR TO OUTSIDE DUCT
18"
(457 mm)
1