AAON S40201 Fill-In, Return Air, Economizer

An AAON S40201 Fill-In directs return airflow through the economizer path, maintaining proper mixing and ventilation across the heating and cooling setup.

• Using real OEM thermostats and high limits maintains consistent response and stable cycling, reducing nuisance trips and keeping your HVAC system reliably on schedule
• Product Type: Fill-In
• Application: Return Air
• Compatible Equipment Type: Economizer