Description
The Johnson Controls T-4506-204 is a dual-temperature pneumatic thermostat used in controlling the temperature of commercial and industrial buildings. Unlike electronic thermostats, it employs compressed air pressure to indicate heating and cooling equipment. This particular model is a direct-acting (DA) type, where an increase in the pressure of the air makes the room temperature higher, and a decrease lowers it. It stands upright and has a 55°F to 85°F, ideally suitable for the conditions of various areas. Also, it has a high volume output to guarantee adequate air pressure to operate even the most complicated HVAC systems.
