Description
The Johnson Controls C-2220-12 Select Slave Module is an integral part of building automation systems that employ Select Series Controllers. This small module functions as a slave device which implies that this device is controlled by a master controller. It is particularly designed for low-volume input and, thus suitable for low-pressure thermostats and control signals. It can receive a 0-10 VDC or a 4-20 mA control signal from the master controller as input. When this electrical signal is received, it is converted to low-voltage control signals to command pneumatic devices in HVAC systems including the dampers and valves. When connected with a master controller, this slave module allows for precise regulation of the pressure of air inside HVAC zones.
