A deadband is a control strategy used for equipment that has the ability to heat and cool. It has three configurable setpoints as follows:
- Desired setpoint (black line)
- High temperature setpoint (red line)
- Low temperature setpoint (blue line)
The deadband control strategy can be used only in a SMARTheating Zone that has a Time vs On/Off Schedule.
Like Time vs Temperature SMARTheating Zones, a deadband-controlled SMARTheating Zone aims to monitor the reference temperature - when the desired setpoint is reached it will turn off.
A deadband-controlled Zone also has heating and cooling setpoints. If the reference temperature is above the high temperature setpoint the Zone will be enabled (the rooms in the Zone will turn blue) and the relay output is enabled and will stay enabled until the desired setpoint is reached. If the reference temperature is below the low temperature setpoint the Zone will be enabled (the rooms in the Zone will turn red) and the relay output is enabled until the desired setpoint is reached.
The term 'deadband' is used to describe the temperature setpoint range between the high and low temperature setpoints. When the temperature is between these two setpoints or 'bands' the Zone is disabled or 'dead'.