Demand Flow

Why Demand Flow?

Experience the next level of energy efficiency and energy conservation with Demand Flow technology for chilled water systems. Siemens Demand Flow optimizes chilled water systems to reduce operational costs, maintain precise temperature control, and extend equipment life. Its patented Variable Pressure Curve Logic (VPCL) provides maximum energy efficiency without sacrificing building comfort, delivering immediate results through built-in analytics. Maximize comfort across a range of industries including K-12, higher education, healthcare, commercial real estate, and government.

The Demand Flow technology family includes:

Demand Flow
Demand Flow Refresh
Demand Flow Smart Services
Demand Flow Ready

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Key benefits

Improve occupant comfort and operational efficiency

Deliver colder water to improve dehumidification and maintain precise temperature control, supporting employee wellbeing and productivity. Reduce chiller starts and stops to enhance equipment life and system reliability.

Make progress toward sustainability goals

Improve energy efficiency with Demand Flow installations. Your central plant is a significant contributor to your building’s carbon footprint, so efficiency improvements make a large impact on decarbonization objectives.

Achieve healthy financial returns and long-term value

Avoid unexpected, catastrophic system failure and capital outlay. Increase deliverable tonnage to improve redundancy without adding chilled water system equipment.

Featured capabilities

HVAC operations infrastructure on outside of building

Built for BACnet-compatible buildings

Demand Flow optimizes your chilled water system without sacrificing savings or building comfort. Implement it on any BACnet-compatible building automation system without shutting down your HVAC operations or disrupting business.

Engineer surrounded by large orange pipes

Patented, proven Demand Flow technology

Siemens has more than 650 global Demand Flow for chilled water system installations that reveal a typical reduction in energy use between 20 and 50%, with measured total chilled water system performance as low as 0.33 kW/ton.

Birds-eye view of the inside of a building

High performance chilling for a changing climate

Heat waves are increasing across the globe, placing unprecedented stress on cooling systems. Unlock the full potential of your chiller to deal with this new reality, delaying or avoiding the need for expensive capital upgrades.