EFCB – Fan Coil Unit Controller

Control Features

• Configurable inputs:
  • 4 analog inputs (0-10Vdc or 10K Ohms )
  • 3 dedicated sensor inputs
  • 3 configurable digital inputs
• Configuable outputs:
  • 4 analog outputs
  • 4 TRIAC outputs
  • 3 fan outputs
  • Up to 4 digital outputs
• Configurable PI (Proportional-Integral) function
• Selectable proportional control band and dead band per ramp
• 3-speed or ECM (analog) fan control
• Selectable internal or external temperature sensor (10KΩ)
• Change over by contact or external temperature sensor
• Freeze protection
• Optional humidifcation and dehumidifcation sequences

Operational Features

• Controller available in 24Vac, 120Vac & 240Vac
• Manual night set back or no occupancy override
• Multi level lockable access menu
• Lockable setpoint
• Removable, raising clamp, non-strip terminals
• 24Vac thermal fuse for overheat protection

Network Communication

• BACnet MS/TP or Modbus RTU communication (selectable via menu)
• Select MAC address via DIP switch or via network

BACnet MS/TP

• MS/TP @9600, 19200, 38400 or 76800 bps
• BACnet scheduler (up to 6 events)
• Firmware upgradeable via network
• COV (change of value)
• Copy and broadcast configuration to other EFCB modules via menu or network
• Automatic baud rate detection
• Automatic device instance configuration

Modbus RTU

• Modbus RTU @9600, 19200, 38400 or 57600 bps
• RTU Slave, 8 bits (configurable parity and stop bits)
• Connects to any Modbus RTU master