Control mode states include Heat, Cool, Fan Only, Off, or Auto. Unlike Construction mode, Control mode does not override any conditions, which would normally shut down the system. If any of these conditions occur, the system is shut down regardless of the Control mode setting. In addition, if set by Control mode, the Cool and Heat modes operate in the same manner in occupied and unoccupied modes.
The following are descriptions of Control mode states:
- In a Cool state, the RTU responds to votes of Cool, Urgent Cool, or Satisfied only, and ignores Heat and Urgent Heat.
- In a Heat state, the RTU responds to votes of Heat, Urgent Heat, or Satisfied only, and ignores Cool and Urgent Cool.
- In a Fan Only state, the supply fan runs, and heating and cooling is off.
- In an Off state, the system shuts down heating and cooling and turns off the supply fan. The Off state is not an instant shutdown, so all minimum times are observed.
- In an Auto state, the system operates normally based on the zone votes.