TCX2 series controllers are communicating universal multiple loop PI-controllers for cabinet mounting. OPA2 is the remote operation terminal for the TCX2 type of products.
Quad loop universal controller (X2 OS) cabinet mounted
Dual loop controller (X2 OS) ideal for zoning and general applications. 230VAC and 24V versions available
Dual loop controller (X2 OS) ideal for VAV zone control
Single loop controller (X2 OS) for BACnet or MODBUS communication