Johnson Controls T-4002-204 Reverse Acting Vertical Thermostat
The Johnson Controls T-4002-204 Reverse Acting Vertical Thermostat is a temperature control device designed for HVAC systems. It senses ambient temperature and modulates heating or cooling equipment in a reverse acting sequence, increasing output as temperature rises. Commonly used with fan coil units, air handlers, and commercial HVAC equipment, it helps maintain precise environmental control.