Broan ERV90HCT installation instructions 457 mm

3.INSTALLATION (CONT’D)

3.8INSTALLING THE TANDEM® TRANSITION KIT (CONT’D)

3.8.1CONNECTION TO TANDEM® TRANSITION

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.

1	EXHAUST AIR TO OUTSIDE
	DUCT ON TOP
VJ0025
3

2

VJ0022

4

VJ0023

VJ0024

3.8.2ASSEMBLING DUAL EXTERIOR HOOD*

Exterior dual hood is coming in separate parts. Using 2 #8 x 3¼4” 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 beside.

*Patent pending

VO0024

3.8.3 LOCATING THE DUAL EXTERIOR HOOD
The dual exterior hood must be installed at a minimum distance of 18 inches (457 mm) from the
ground. See illustration beside.
	!	WARNING	18''
			(457 mm)
Make sure this hood is at least 3 feet (0.9 m) away from any of the following:
• High efficiency furnace vent.	• Any exhaust from a combustion source.
• Gas meter exhaust, gas barbecue-grill. • Garbage bin and any other source of contamination.			VD0083
3.8.4 CONNECTING TANDEM® TRANSITION TO THE DUAL EXTERIOR HOOD			1

1.Using a jig saw, cut a 6’’ diameter hole in the exterior wall and insert the Tandem® transition through this hole.

VD0084

1) Exhaust air to outside duct

CAUTION

The Tandem® transition must be inserted in such a way that the Exhaust air to outside duct will be located on the top.

- 14 -