Dry bulb changeover - Johnson Controls - LIT-12011950 - Building automation software - Smart Equipment Controller - 5.0

Smart Equipment Controls Sequence of Operation Technical Bulletin

Brand
Johnson Controls
Product name
Smart Equipment Controller
Document type
Technical Bulletin
Document number
LIT-12011950
Version
5.0
Revision date
2024-06-06
Product status
Active
Language
English

This section applies when the free cooling current mode is dry bulb.

For dry bulb economizer operation, the outside air is suitable for free cooling if the operational outdoor air temperature is 1°F below the economizer OAT enable setpoint and 1°F below the return air temperature.

Free cooling is no longer available if the operational outdoor air temperature rises above either the economizer OAT enable setpoint or the return air temperature.