Description
The Johnson Controls S-2300-3 Selector Switch is used to control and vary the pressure in the pneumatic control system commonly used in HVAC equipment. This device made from metal or plastic for sturdiness, has five jacks and a rotary control. It also serves as a multi-position valve. One of the five ports can be pressurized with air by turning the knob according to the users’ desire. The other ports are closed to prevent air from entering the room. This allows the manual supply of compressed air to different pneumatic actuators that regulate dampers, valves, and other air-operated components of the HVAC system. For example, increasing comfort with a possible decrease in energy consumption.
