Johnson Controls T-4002-5018 Vertical Set Point Dial

The Johnson Controls T-4002-5018 is a replacement dial that is used to change temperature settings. This dial has a temperature scale of 30°F to 90°F. The 2.75" dial is usually made of plastic or metal and can just be swapped out if the current one is damaged or worn out. Consumers may then use their eyes to select the desired comfort temperature from the dial, turned clockwise. This makes the human input adjustments to the thermostat settings which in turn controls the HVAC system heating or cooling. This ensures that the customers enjoy the comfort of maintaining their room temperatures as they also ensure the best operation of the system with the added factor of possibly saving electricity.