Choose Grundfos Quality for Flow Control

Grundfos Control HVAC can help you achieve significant energy savings without sacrificing building comfort. Designed exclusively for delivering the highest level of efficiency to chilled water systems, you can count on it to deliver unmatched reliability and energy efficiency no matter the building size.

Guaranteed to fit in your building, no matter the size

• Measures up to 26 building zones differential pressure sensor values, comparing them to individual setpoints
• Calculates main control loop setpoint  from the largest deviation between actual and setpoint values.
• Can control system bypass valve to ensure operating chillers minimum flow requirements are met

Maximize building comfort and efficiency

• Easy configuration of cut-in/cut-out speeds for individual pumps using application-optimized software
• Automatic cascade control ensures the highest possible system energy efficiency
• Regulates the variable-speed pumps and controls the bypass valve based on building demand.

Easy commissioning and reliable operation

• Self-configuration option using Autotune — calculates the optimal control loop settings and reliably run the chilled-water system
• Protects chillers from freezing in low demand situations by adjusting bypass valve to ensuring consistent operation

Flexible remote access and monitoring

• Optional: BMS integration and monitoring  via standard protocols (e.g., BACnet IP and Modbus TCP)
• Optional: Grundfos Remote Management system (GRM) integration

Four standard variants offer up to:

• Four Grundfos E-pumps or CUE frequency converter / Four chiller signals
• Four ext. variable frequency drives (0–10 V control / 4–20 mA power feedback) / Four chiller signals
• Eight Grundfos E-pumps or CUE frequency converter / Eight chiller signals
• Eight ext. variable frequency drives (0–10 V control / 4–20 mA power feedback) / Eight chiller signals
• Optional: bypass valve control included in all