Calculators
Engineering-grade CRAC calculators.
Two free tools that follow the same ASHRAE TC 9.9 methodology our engineers use on commissioned design work. Use them to size a budget, validate a vendor quote, or pre-qualify your specification before a site visit.
Pre-spec
Heat Load Calculator
Enter your room dimensions, IT racks, occupants and envelope class. We compute total sensible kW, density per m², and recommended CRAC capacity with redundancy.
Open calculator →Architecture
Topology Selector
Decision tool that recommends DX, CDW, CHW, in-row or RDHx based on your load, density, plant infrastructure and uptime target. Includes alternates and site flags.
Open calculator →Engineer review
Need a validated specification?
These calculators give you a budgeting-grade answer. For a real specification we run a CFD model, validate against your envelope U-value, and ground the design in AS/NZS 5149 and ASHRAE TC 9.9 compliance.