Description
The Johnson Controls T-4002-5017 is a dial that is used in changing the temperature of the thermostats that are in buildings. The 2.75″ dial is usually made from hard plastic or metal and features a clear temperature scale printed directly on the surface of the dial which goes from 30°F to 90°F. It is easy to adjust the comfort level by turning the dial and it will translate those settings to the thermostat controls. This later stabilizes the desired temperature and therefore controls the heating or cooling of the environment by the HVAC system. When a dial is no longer operational, or when it is lost, users regain control of the temperature of a room and help the HVAC system work better through the T-4002-5017.
