Before you begin installation, read these instructions completely and carefully.
Observe all governing codes and ordinances as they may apply.
Leave these instructions with the owner.
IMPORTANT SAFETY NOTICE
!
is to be installed only by a licensed and trained industry professional. The manufacturer will not
assume liability for unqualified installers or failure to follow these instructions.
Warning
For personal safety, disconnect system power before installing this accessory.
!
During installation, if ground wires, screws, straps, clips, or other means of attaching grounding
components are removed, they must be returned to their original positions and fastened securely.
Model: UAPT0912A
UAPT1824A
Plenum Model Number
UAPT0912A
UAPT1824A
The supply plenum can be installed before or after indoor unit installation.
1. Align the plenum so that it slides over the duct flange and fits tightly on the flange.
2. Secure the plenum with sheet metal screws or rivets.
3. Seal the connection with tape or duct sealant.
4. Connect round duct to supply outlets and secure with Panduit or tape.
5. Balance air flow using the dampers built into the round outlets.
1
To avoid personal injury or property damage, this accessory
Indoor Unit Model
USYM09U / USMY12U
USYM18U / USMY24U
Installation Instructions
Supply Plenum
31-5000556 Rev. 0 09-20 GEA