How Drawing Review Caught HVAC Mismatches on Salt Lake Restaurants
- The HVAC schedule did not match the airflow on the plans, and the restroom finish schedule disagreed with the elevations. A urinal height note was in the set and was not the rebuild.
- Helonic checked the six Salt Lake restaurant PDF sets for airflow and finish tags.
- The firm confirmed 305 issues and priced $120,000 in restroom and equipment rework they avoided.
Salt Lake City, UT. 305 issues across 6 restaurants.
Issues Detected
305 across 6 stores
Lead Findings
Airflow and finish
Estimated Savings
$120K before build
HVAC Airflow That Did Not Match the Plans
An architecture firm was fitting the same restaurant prototype into six existing shells in Salt Lake City. The accessible restroom was supposed to be identical in every store.
The HVAC schedule listed a supply airflow that did not match the diffuser callout on the plan. The restroom finish schedule called for a tile the interior elevations did not show. The urinal height was off too. Rebalancing the air and opening a finished restroom is the money. The height note is not.
A prototype error like that lands in every store unless someone checks the schedule against the plan.
Helonic Flagged the Airflow and the Restroom Finish
They uploaded the six tenant PDFs. Helonic compared the HVAC schedule with the plan airflow and the finish schedule with the restroom elevations.
The combined list was 305 issues. The ones that repeated into every store were the HVAC airflow mismatch and the restroom finish conflict.
Each finding named the store's sheet, so the prototype could change once and the shell-specific notes could change per site.
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305 Issues, $120,000 in Restroom Rework Avoided
The firm lowered the urinal, matched the airflow number on the schedule to the plan, and picked one restroom finish before the landlords approved the sets.
They priced $120,000 to reopen finished restrooms and rebalance the HVAC after the stores were built.
Landlord reviewers still marked signage. The urinal height, the airflow, and the finish tag were already aligned.
“The HVAC airflow did not match the plan, and the restroom finish schedule disagreed with the elevation. Helonic caught both before we copied the prototype into six stores.”
Frequently asked questions
Where did the 305 issues come from?
A completed Helonic review of six Salt Lake City restaurant sets.
What were the main findings?
An HVAC airflow mismatch between the schedule and the plan, and a restroom finish conflict between the finish schedule and the elevations. Those are the items that get rebuilt. A urinal-height note was also on the list.
Does one prototype review cover every store?
The restroom and the HVAC type are shared. A height or airflow error in the prototype repeats in every shell that copies it.
Were all six stores on one review?
The firm ran the six tenant sets. The airflow mismatch and the restroom finish conflict repeated from the prototype into each store.
Manas Gandhi
Co-founder & CTO, HelonicManas is the co-founder and CTO of Helonic, where he leads engineering and AI research for construction drawing analysis. He works directly with structural, MEP, civil, and fire protection engineers to translate the way they review drawings into AI systems that flag the issues that actually matter in the field. Before Helonic, he built machine learning pipelines for technical document understanding and has spent the last several years interviewing licensed design engineers and discipline leads to ground product decisions in real practice rather than industry assumptions.
- AI for technical document understanding
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- Code compliance automation (IBC, NEC, NFPA, IPC, IMC, ASCE)
- Structural and MEP drawing review systems
How this page was researched: Reviewed against Helonic's 2026 drawing-analysis categories, RFI workflow, and product capabilities.
Last reviewed by Manas Gandhi · September 12, 2026