6
2.
TYPICAL INSTALLATIONS
(CONT’D)
This unit can be used for a retrofit application. Connect the existing ducts to the corresponding
unit ports. If the previous stale air to outside duct and fresh air from outside duct are 5’’
diameter, install the 5’’ diameter adapters (included) over each of the corresponding unit
ports. Also, if using the installation kit no. 1527
3
or no. EA201
3
0 (not available in the
U.S.A.), install these 5’’ diameter adapters. Use 4 screws (included) per adapter to attach
them to the unit. See figure below.
The joists opening needed to install the Tandem transition must be 9¾’’ (248 mm)
minimum. Also, the maximum heigh of the tandem transition is 8¾’’ (222 mm). See
Tandem transition end view below.
NOTE:
The Tandem transition is included in the installation kit no. 1527
3
(not
available in U.S.A.).
2.3 M
OUNTING
C
ONSIDERATIONS
VJ0030
VD011
8
A
8
¾”
222 mm
9¾”
24
8
mm
