The mechanical design workflow, connected.

Loads, ventilation, equipment and plant sizing, compliance checks, Design Review, and deliverables in one workspace — with an AI that drafts and an engineer who decides and stamps.

Book a Demo

The workspace

Scope on the left. The engineering in the middle. Review on the right.

Wireframe of the workspace layout — not a screenshot, and no computed values are shown. The demo walks through the live product.

Connected workflow

Enter the design basis once.

Every step reads the project state the step before it wrote. Change an upstream input and the affected steps are flagged for re-run, so the loads, the ventilation, and the equipment don't drift apart.

1

Describe the project

A few sentences: building, size, systems, location. Or start from one of six worked sample projects. The co-pilot proposes a scope, zones, and design conditions, and each one waits as a Pending Change until you accept it.

2

Run the engineering

Loads, ventilation, equipment, and plant compute from the same rooms and conditions. Firm design-criteria templates set velocity limits, safety factors, and sizing margins once for the whole project.

3

Review, then issue

Design Review runs deterministic cross-checks. You resolve the findings, apply judgment, and export the report, the Basis of Design, and the calculation package.

What's inside at launch

Methods you can name, results you can check.

Mechanical only at launch on October 15, 2026. Each area below lists the method it uses.

Loads & ventilation

Advisory Ventilation & psychrometrics: Validated
  • RTS per ASHRAE Handbook—Fundamentals 2021 Ch. 18 is the default: clear-sky solar, sol-air conduction, mass-aware radiant time factors. Cooling is swept across the season, so each zone reports its own peak month and hour.
  • CLTD/CLF and Simplified are selectable per project. Every method is altitude-corrected.
  • Room-level loads roll up to zones and equipment. Rooms can be traced over the architect's PDF floor plans.
  • ASHRAE 62.1-2019 Ventilation Rate Procedure: Vbz = Rp·Pz + Ra·Az, Voz = Vbz/Ez, system Ev from the load-calc airflows, and Vot per system. DCV inputs and pressurization / relief-air checks are included.
  • ASHRAE 170 per-zone air-change checks for healthcare spaces (a Reference checklist).
  • Psychrometrics: altitude-corrected state points, mixing, and coil processes.

Equipment & plant sizing

Advisory
  • Air handlers, rooftops, DOAS, fan coils, terminal units, coils, energy recovery, humidifiers, and heat exchangers. Supply airflow comes from the loads, and intake outdoor air comes from 62.1 §6.2.5 per unit.
  • Cooling plant: chillers checked against ASHRAE 90.1-2022 efficiency floors, CHW flow from GPM = Btu/h ÷ (500·ΔT), cooling towers. Heating plant: hot-water or steam boilers.
  • Motor FLA, MCA, and MOCP per NEC 430, for the electrical engineer's coordination.
  • Design-criteria templates for velocity limits, safety factors, and sizing margins. An override can tighten a code limit but never loosen it, and stacked margins are disclosed as a chain rather than folded into one factor.

Design Review / QA

Advisory
  • Deterministic cross-checks over the computed project: supply airflow against zone sensible load, CFM per ton, plant capacity against connected load, and missing inputs.
  • Each finding names the check behind it. The AI can explain a finding, but it never creates one.
  • The same findings appear in the right rail, the Basis of Design, and the calculation package.
  • ASHRAE 90.1-2022 and 62.1-2019 compliance scoreboards, built from your live project data.

Deliverables

Advisory
  • A multi-page PDF engineering report, with a methods, assumptions, and limitations appendix covering the whole project.
  • A Basis of Design narrative compiled from the computed results, including the design criteria and their sources.
  • A calculation-verification report that shows every calculation with its equation and your values substituted.
  • A calculation package with provenance and the maturity register: the trust level of every number, not just a summary.
  • Sequences of operation (parameterized from ASHRAE Guideline 36) and BMS points lists.
  • System, airflow, and plant process-flow diagrams. Tables export to Excel.
  • Cost estimate (Reference) and life-cycle cost with NPV and simple payback (Advisory).
Validated · Advisory · Reference

Every result tells you how far to trust it.

Each module carries a maturity label next to its method and code edition. The label stays with the number through the report and the calculation package, so a reviewer sees it as well.

Validated

Checked against a reference value, with the citation shown. Earned one module at a time and never assumed. At launch: ventilation and psychrometrics. See the reference checks →

Advisory

A real calculation from published methods. A design starting point, with its assumptions and limitations disclosed. Most launch modules carry this label.

Reference

A checklist or scoping tool keyed to your project data, such as the ASHRAE 170 checklist or the cost estimate. Never presented as an engineered result.

ASHRAE 140 Compliant

AIM Works meets the applicable ANSI/ASHRAE Standard 140-2023 acceptance criteria for its tested building-performance simulation capabilities. See validation methodology →

Standards referenced at launch

ASHRAE Handbook—Fundamentals 2021 ASHRAE 62.1-2019 ASHRAE 90.1-2022 ASHRAE 170 (reference checklist) ASHRAE Guideline 36 NEC 430 (motor data) ANSI/ASHRAE Standard 140-2023

The methodology page lists the equations, editions, and known limitations.

Current limitations

What isn't in the launch release.

Planned next

  • Duct and pipe distribution sizing (V2, targeted early 2027). The equal-friction and Darcy-Weisbach engines are built and show in the catalog as Coming Soon.
  • IMC, IFGC, and NFPA 90A / 90B / 96 / 99 scoreboards.
  • Division 23 specifications, equipment / terminal / valve schedules, P&IDs, and coordination sheets for other disciplines.
  • SI unit display. Launch is IP-only.

Not in scope

  • Electrical design and full plumbing design.
  • Code-compliance energy modeling (ASHRAE 90.1 Appendix G, LEED energy credits). An optional annual energy estimate is available as an Advisory design-comparison tool. It is not a submittal model.
  • Construction documents.
  • Replacing the engineer of record. Outputs are advisory and must be reviewed and stamped by a licensed PE.

See the workflow on your project.

A walkthrough with the people who built it, then a 14-day free trial. No credit card.

Book a Demo