Fireye NXF4000 Combustion Efficiency Control

The Fireye NXF4000 control is an advanced combustion efficiency control system for all types of combustion systems, with an integrated flame safeguard. Best-in-class support for four fuel profiles allows these controls to accommodate a large variety of applications. Up to ten servos can be connected in total, with three sizes available: 4Nm (3 ft.-lb.), 20Nm (15 ft.-lb.) and 50Nm (37 ft.lb.).

• Four available fuel profiles with up to four connected servos per profile
• Ten servos can be connected in total with non-monotonic operation
• Three servo choices: 4Nm (3 ft.-lb.), 20Nm (15 ft.-lb.) and 50Nm (37 ft.lb.)
• Built-in 24VDC power supply for servos, user interfaces and accessories
• Internal flame safeguard functionality w/ IR or UV amplifiers for use with standard flame scanners
• Available with direct-coupled amplifier for use with integrated flame scanners
• Intelligent valve proving for two- or three-valve systems
• Input option for airflow switch test
• Input option for fuel valve proof of closure
• Five 4-20mA analog inputs are available
• 15 programmable line-voltage digital inputs available
• One user-defined 4-20mA analog output is available
• 3 user-defined line-voltage digital outputs available
• Optional VFD interface card adds allows up to two VFDs to be connected, with 4-20mA or encoder
  feedback and up to two user-defined 4-20mA analog output.
• Two optional O2 trim probes available (standard and high temperature) for monitor and control
• Boiler efficiency calculation available with optional O2 trim
• Thermal shock algorithm is available for cold starts
• Up to six boilers can be connected for peer-to-peer sequencing
• Internal PID load control is available for precise steam or hot water setpoint control
• External 4-20mA signal can be connected for direct control by building automation or PLC
• Hot standby function can be used to maintain a hot water setpoint so
  boiler is always ready to make steam quickly
• SD card slot for backup and restore parameters (standard SD included in carton)
• Modbus RTU via RS-485 for connection to building automation or PLC
• BACnet/IP, BACnet MS/TP and Ethernet/IP available via MB485ETH-CG gateway
• Standard 4.3” touchscreen user interface with virtual four-line display and function buttons
• Optional 7” or 12” touchscreen user interface with Modbus TCP server, remote VNC viewer and additional
  features can be used with or in place of 4.3” user interface
• Small footprint with no wiring base (integrated terminal blocks)
• Expert support from the Adaptive HVAC Supply team