A Johnson Controls thermostat is a device used to set the room temperature to a constant setting by connecting with the user's HVAC system. Johnson Controls thermostats are compatible with heat pumps, cabinet unit heaters, staged equipment, zoning systems, and perimeter heating and cooling units.
The Johnson Controls thermostat works with the HVAC to either raise or lower the temperature of the room based on the user's preference. If the room temperature is 55 degrees Fahrenheit and the thermostat is set to 65 degrees, the heat will turn on until the correct temperature is reached.
The Johnson Controls thermostat can also be used to cool a room by working with the HVAC unit. A room temperature of 80 degrees could be cooled by setting the thermostat to 65 degrees.