A complete project walkthrough — project setup, room-by-room load calculations, ASHRAE 170 ventilation, equipment selection, Title 24 compliance, Revit clash detection, and final report. From kickoff to permit submission.
Create the project from the Project Manager module. Pull design conditions for the site (Sacramento, CA — California Climate Zone 12) directly from the 523-location ASHRAE weather database. Title 24 climate-zone overlay confirms CZ 12 with TDV multipliers loaded.
Import the room program from a Revit gbXML export (or build manually in the room manager). 220 rooms classified per ASHRAE 170 Table 7-1: ICUs, ORs, isolation rooms (AII / PE), imaging, exam, lab, pharmacy, sterilization. Each room inherits the correct ACH minimum, OA fraction, and pressure relationship.
Run cooling and heating loads using the ASHRAE Radiant Time Series (RTS) method per Fundamentals Ch. 18. Altitude correction applied. Per-orientation solar with shade-coefficient handling on all curtain wall.
Auto-generate the system schedule from the room loads. Hospital uses a central chilled water plant (3,800-ton peak, 4 chillers staged) feeding floor-by-floor AHUs with separate OR / AII / general-occupancy AHUs.
Equipment selection pulls correction factors from AHRI 550/590 (chillers) at off-design CHW / CW temperatures, AHRI 340/360 (RTUs / heat pumps), and ANSI Z21.13 altitude derating for boilers. Manufacturer catalog data (Trane, Carrier, JCI, Greenheck) populates the schedule.
Run the 8760-hour annual simulation in the JΔS native engine (Path B) and cross-validate against the bundled EnergyPlus 24.x install. Both engines agree within ±3% on annual EUI.
Generate the Title 24 compliance package via the Path A CBECC wrap. The translator emits a valid .cibd25 XML file containing every space, surface, glazing, HVAC system, and schedule. CBECC-Com 2025.2.1 accepts the input on first run; the proposed design beats the standard budget by 14.2%.
Plumbing system designed against CPC 2022 (California Plumbing Code). Fixture units rolled up via Hunter's Curve. Medical gas distribution per NFPA 99 Level 1. DHW recirculation sized with the proper temperature-cycling logic.
Fire protection: NFPA 13 sprinkler system with hospital quick-response heads, NFPA 14 standpipes (Class I in stairs), NFPA 20 fire pump (1,250 GPM at 100 PSI), NFPA 72 mass-notification audio for code blue. Smoke control per NFPA 92 with stair pressurization and atrium exhaust.
Electrical: NEC service sizing (3-section essential / equipment / life-safety branch per NFPA 99 Article 517), IEEE 1584-2018 arc flash study with PPE labels at every panel, generator sizing for full essential load.
Federate the architectural, structural, and MEP Revit models. Run the JΔS Clash Detection add-in across all four discipline pairs (Mech vs Struct, Mech vs Mech, Plumb vs Plumb, Mech vs Plumb). The BVH broad phase + parallel SAT engine clears the full federated model in under 2 minutes.
Real-time monitor enabled during the coordination phase — clashes are detected within 5 seconds of any model edit and flagged on the live Issues panel. The persistent symbol blacklist excludes the 18 known false-positive families (e.g., custom corner couplings).
Once permit is issued and construction begins, switch to the CA Admin tools for the field phase. Generate RFIs from inside the model, route submittals through the review workflow, capture punchlist items in the field via the offline-capable PWA.
The complete step-by-step walkthrough with screenshots, sample input files, and downloadable project shell ships in the documentation bundle.