Cleaver-Brooks | Products & Solutions | Controls | Integrated Boiler Controls | Hydronic System Control

Hydronic System Control


  • Integrated hydronic control to efficiently meet building heating needs
  • For condensing, non-condensing, and hybrid boiler applications
  • Boiler sequencing and modulation – operates boilers at their peak efficiencies
  • Integrates pumps, valves, dampers and Domestic Hot Water (DHW) controls
  • Minimizes cycling thereby saving fuel on new and retrofit boiler applications
  • 6” color touch screen System Administrator with networked boiler, pump & damper interfaces

The Hydronic System Control is a PLC based boiler sequencing and modulation control for hydronic heating applications.  It works with condensing, non-condensing, and hybrid applications to deliver required building heat while saving on fuel.  By controlling the condensing and non-condensing boilers using independent PID loop control, the HSC can optimize boiler operation based on the unique characteristics of each boiler type resulting in maximum system efficiency.

The core design allows for control of multiple hot water boilers in any combination of size and type, and extends to control and optimize the use of condensing, non-condensing, and hybrid boiler systems. This allows management of a heating load as the control calculates independent PID loop for the condensing and non-condensing boilers, respectively. The control uses the monitored system variables to select and operate the appropriate boiler or boilers from operating groups or banks of boilers.  This approach avoids the detrimental effects on boiler and boiler system efficiency and equipment life often due to unnoticed short-cycling of boilers.  The system incorporates thermal shock routines to protect the non-condensing boilers by pre-heating incoming water to keep the inlet to the non-condensing above the required minimum temperature.


  • Hybrid boiler applications
  • Different-sized boiler applications
  • System pump, boiler pump and 3-way valve modulation control
  • Domestic hot water control
  • Damper/draft boiler start interlock
  • Data logging
  • Load sharing
  • Modbus communications to energy management system
  • Outdoor reset capability


  • Lower Fuel Cost
  • Lower Emissions
  • Hot Water Solution
  • Building Heat
  • Education
  • Hospital and Healthcare
  • Commercial and Office Units

Featured Product


The ClearFire-C fully condensing hydronic boiler is a vertical down-fired design offering high efficiency and low NOx technology.      

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