Hysopt Calculator: HVAC Component Selection & Commissioning Software
For technical HVAC designers and engineers:
Hysopt Calculator helps you select, configure, and validate HVAC components faster and more accurately. From pipe sizing and pressure drops to BOM exports and commissioning documentation, streamline every step from detailed design to system handover.
From Component Selection to Commissioning
Hysopt Calculator focuses on the technical HVAC design and commissioning phase, helping engineers and designers streamline system configuration from concept to installation. Easily select and integrate HVAC components—generic or brand-specific—while automating key processes like pipe sizing, pressure drop calculations, partial load analysis, and Bill of Materials (BOM) export.
With full support for air handling units and ventilation systems, the tool enables precise configuration of thermal systems and ensures commissioning-ready output that matches on-site requirements.
Main features of the Hysopt Calculator
Intuitive P&ID Modelling
- Drag & drop interface
- Unique ‘’Base Circuit Methodology’
- Combine different canvasses
- Easy modification of system parameters
Hydraulic Validation
- Automatic detection of redundant or missing components
- CAPEX reduction as a result
- Instant feedback during the entire design process
Power, Flow & Temperature Propagation
- Automated mass and energy equation calculation to determine correct flow rates
- Visualisation of design mass and energy flows
- Easy access to design parameters
Pipe Sizing
- Broad selection of pipe types
- Automatic size calculation based on max flow speed or pressure drop
- CIBSE, WTCB, ISSO or custom pressure profiles available
- Supported diversity calculations for DHW and central heating
Proven Concepts Library
- 100+ validated energy centre concepts
- Integrated control strategy
- Customisable templates
- Filter on types to find preferred concept
- Simple implementation and connection to your own P&ID
Generic/brand specific
- Calculate requisite hydraulic configuration of generic components
- Specific types and manufacturers
- Automatic selection of the optimal option
- Data sheets with specifications for each component
Partial Load Analysis
- Static case studies of different scenarios
- Visualise the effect of valve position and pump head on the entire system
- Avoid comfort problems and guarantee a balanced system
- Easy modification of system parameters
Commissioning & BOM Export
- Automatic computation of required pump size, pressure drops, and presets
- Full component list in one click, including pipe diameters, pump heads, etc
- Identifiers to connect with Hysopt model
- Manufacturer information included (if specified in model)
Explore our resources
Adressing the Pressing Challenges in Today's HVAC Industry
Less Risk, More Profit - Webinar 1
Flamco products in the Hysopt software
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