When you need comfort control in two adjacent rooms but have only one Friedrich PTAC unit, the PDXDAA Duct Adapter will help transfer air from one room to another. It also allows different airflows for the rooms.
The duct adapter matches the Friedrich PTAC units. The adapter kit is needed in order to get conditioned air into the secondary space you are trying to cool or heat. A duct extension is also available. Up to 3 extensions in total can be used. Please note that the longer your duct run the more your airflow to the secondary space is reduced.
We have put a kit together that includes the duct adapter and an additional extension - PDXDAA-PDXDEA
PTAC Lateral Duct Accessory Kit.