Design Builder HVAC

This tool functions as an HVAC design builder for commercial buildings. It accepts building geometry, zones, occupancy schedules, climate data, envelope properties, and design criteria; it then computes zone-by-zone heating and cooling loads, suggests equipment sizing, and estimates duct and piping requirements. It enforces recognized standards (ASHRAE 90.1, ASHRAE 62.1, IECC) and provides sensible defaults for common building types. The design-centric workflow supports rapid comparison of layouts, ventilation strategies, humidity controls, and energy performance across scenarios. It outputs equipment lists, duct sizes, pressure drops, and energy estimates that can be reviewed in reports or BIM pipelines. Users benefit from a single source of consistent design data, versioned results, and traceable assumptions suitable for approvals and cost estimation. The tool is valuable for architects, mechanical engineers, energy analysts, MEP consultants, and contractors who need code-aligned guidance during early schematic and later design phases. Unique value lies in integrating load calculation, equipment sizing, duct routing, energy analysis, and exportable data with BIM-compatible formats. It supports parametric optimization, scenario comparisons (different ventilation rates, economizers, humidity strategies, or plant configurations), and batch runs to evaluate multiple design choices quickly. Typical use cases include new office towers, retail complexes, hospitals, data centers, and retrofit projects where accurate sizing, energy performance, and documentation are critical. It also provides dashboards for critical KPIs like peak load, energy intensity (EUI), and seasonal COP, and exports BOMs and reports that feed into procurement and commissioning workflows.