ENVI® Boiler Control System

ENVI® Boiler Control System

Designed to maximize efficiency, our ENVI® outdoor boiler control system monitors and modulates the combustion and ignition of the boiler to maintain the desired outlet temperature.

This flexible boiler control system can run a single boiler or a master/member network of up to 16 boilers. The lead/lag setup and boiler start rotation ensure run times are equally distributed across each unit in the system, extending the life of the boilers.

The ENVI® boiler control is an on-board control system, eliminating the need for external control panels and reducing ancillary component costs. Control both condensing and non-condensing boilers in a hybrid system for maximum efficiency at minimum cost.

General Documents

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  • Combination combustion and temperature control
  • 9 comfort heat modes
  • Text-based display
  • 3 domestic hot water modes
  • MODBUS® RS-485 communication protocol
  • Cascade sequence up to 16 boilers
  • 0-10VDC analog input


  • Standard integrated control on outdoor boilers
  • Fault descriptions in plain English include boiler status at the time the alarm occurred
  • User friendly text-based display makes programming easy
  • Individually annunciated limit switches make troubleshooting quicker and easier
  • Automatic set point adjustment based on user defined outdoor air reset curve
  • Built-in cascade function allows sequencing of up to 16 boilers
  • Use the same boiler or network of boilers to deliver domestic hot water as a priority over space heating
  • Communicate with building management systems using MODBUS RS-485 protocol or 0-10 VDC analog input
  • Automatic set point adjustment for night setback
  • *MODBUS® is a registered trademark owned by Schneider Automation Inc.

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