Building System Status
Status for building systems:
*Seasonal changes - There is a heating season and a cooling season:
- Heating season generally begins in the fall, when day time temperatures are expected to drop below 75 degrees for at least 3 consecutive days, continuing through the winter season.
- Cooling season generally begins in the spring, when the day time temperatures are expected to rise above 75 degrees for at least 3 consecutive days.
- Idle - During the transition between seasons, there may be times where the system is idle, neither heating or cooling.
Last updated: 05/07/2026
Information about building HVAC systems, including residential unit controls:
Heating and Cooling Information