Carrier AGATWNPME01B Installation Instructions Manual page 4

AGATWNPME01B: Installation Instructions
NOTE: Upflow - Single Return
Return duct cannot obstruct access to either furnace
Return Air can enter through any combination of:
a. Left side only
a. Right side only
b. Bottom only
c. Back of platform when height of platform equals
Dimension "A" as shown
Common Return Air
Plenum
A
Common
Supply Air
Plenum
NOTE: Downflow Application
Do not connect return air to any side of the furnace
Connect return air plenum as shown
NOTE: Refer to the Installation, Start-Up, and Operating Instructions supplied with each furnace for information on venting, clearances, start-up,
maintenance, and other information not covered in this publication.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig. 4 – Upflow Ductwork Connections
(Condensing model shown - comparable to Non-Condensing model)
A
A
Fig. 5 – Downflow/Horizontal Ductwork Connections
(Condensing model shown - comparable to Non-Condensing model)
NOTE: Upflow - Two Returns
When furnaces are installed back-to-back (not shown), return duct
MUST connect to the common return plenum and side inlet of BOTH
surfaces.
Return duct cannot obstruct access to either furnace.
Top View
Common
Supply Air
Plenum
NOTE: Horizontal Application
Do not connect return air to any side of the furnace.
Do not stack condensing furnaces on top of each other.
Horizontal stacking only permitted with mid-efficiency furnaces.
Back-to-back installations, platform or suspended is approved for all
models.
For back-to-back installations, Dimension "A" is measured across the
front of one furnace, similar to upflow/downflow installations.
4
L11F093 / L11F094
Common Return Air
Plenum
L11F095A