The VCB-X Controller can be used on units with a single Variable Capacity Compressor and with or without additional fixed compressor stages. The VCB-X Controller can be configured for Constant Volume, Make-Up Air, VAV, and Single Zone VAV applications.
The VCB-X Controller is designed with 5 analog inputs, 3 analog outputs, 1 triac output, 4 binary inputs, and 6 relay outputs. It also has an on-board BACnet® port for connection to an MS/TP network. The Controller contains a 2 x 8 LCD character display and 4 buttons that allow for status and alarm display and force modes as well as BACnet configuration.
The VCB-X EM1 Expansion Module provides an additional 6 analog inputs, 3 analog outputs, 3 binary inputs, and 5 configurable relay outputs. The VCB-X EM2 Expansion Module provides an additional 1 analog input, 2 analog outputs, and 3 binary inputs. The VCB-X 12 Relay Expansion Module provides up to 12 additional configurable relay outputs.