# HVAC Design Sample Workflow — Commercial HVAC Engineering

> Commercial HVAC Engineering (iPhone/iPad app by Yuhsiu Lai.)

- Source: https://appshunter.io/ios/app/hvac-design-sample-workflow/id6768654080 (this page in markdown: same URL + `.md`)
- Developer: [Yuhsiu Lai](https://appshunter.io/developer/433114647)
- Category: Education, Reference
- Price: $9.99
- Age rating: 4+
- Requires: iOS 17.0 · 34 MB
- Languages: American English
- Released: 2026-05-21
- Data updated: 2026-06-04
- User reviews in markdown: https://appshunter.io/ios/app/hvac-design-sample-workflow/id6768654080/reviews.md

## What is HVAC Design Sample Workflow?

HVAC Workflow is a complete engineering training platform for mechanical and HVAC engineers, engineering students, and technicians. The app walks you through all 17 phases of a real commercial HVAC project from project initiation through commissioning and closeout, using the Skyline Tower Complex as a structured case study.
THE SKYLINE TOWER CASE STUDY
Follow a 45-story, 2.5-million-square-foot mixed-use high-rise through every stage of HVAC engineering. Each phase presents what was done, why decisions were made, how calculations were performed, and what deliverables were produced. This is not abstract theory. It is a project-based walkthrough of how commercial HVAC engineering actually works.
17 ENGINEERING PHASES
Phase 1: Project Initiation and Basis of Design
Phase 2: Cooling and Heating Load Calculations
Phase 3: Central Chiller and Boiler Plant Design
Phase 4: Airside Systems and VAV Design
Phase 5: Ductwork Design and Static Pressure Analysis
Phase 6: Hydronic Piping and Pump Sizing
Phase 7: Outdoor Air, Ventilation, and Energy Recovery
Phase 8: Smoke Control and Fire-Life Safety HVAC
Phase 9: Building Automation System Design
Phase 10: Data Center Precision Cooling
Phase 11: Parking Garage Ventilation
Phase 12: Tenant and Retail HVAC
Phase 13: Energy Modeling and ASHRAE 90.1 Compliance
Phase 14: Controls and Sequences of Operations
Phase 15: Electrical Integration and VFD Specifications
Phase 16: Commissioning, TAB, and Functional Testing
Phase 17: As-Builts, O and M Manuals, and Project Closeout
ENGINEERING DRAWINGS GALLERY
Study 30 professional HVAC engineering drawings including chilled water system schematics, VAV duct layouts, riser diagrams, BAS architecture diagrams, smoke control cause-and-effect matrices, data center cooling plans, and commissioning test plans. Pinch to zoom, export any drawing as PDF.
DELIVERABLES LIBRARY
Every phase produces real engineering documents. Read full content for over 50 deliverables including load calculation reports, equipment schedules, sequences of operations, commissioning plans, TAB procedures, and O and M manuals.
STANDARDS COVERAGE
Content references ASHRAE 90.1, ASHRAE 62.1, ASHRAE 55, ASHRAE 135, NFPA 92, NFPA 90A, SMACNA Duct Construction Standards, IMC, AABC, and NEBB throughout each phase, showing how code requirements drive real engineering decisions.
TRACK YOUR PROGRESS
Mark steps and phases as reviewed. Visual progress indicators across the dashboard, workflow, and gallery show exactly how far through the engineering lifecycle you have studied.
PDF EXPORT
Every deliverable and engineering drawing can be exported as a formatted PDF directly from the app. Share via AirDrop, email, or any connected service.
FOR EDUCATIONAL USE
This app is a learning and training reference. All content is for educational purposes. It does not constitute professional engineering services and does not replace the work of a licensed Professional Engineer.


## Version history (last 1 release)

### 1.0 — 2026-05-21

No release notes.

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All apps by Yuhsiu Lai: https://appshunter.io/developer/433114647

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*