Division 23 Heating, Ventilating, and Air Conditioning (HVAC)

Submittal Package Incompleteness in Division 23 Heating, Ventilating, and Air Conditioning (HVAC) submittals

By Deviation Check Editorial Team. Last reviewed June 1, 2026.

Short answer

A required submittal element (cut sheet, schedule, calculation, sample) is missing, leaving the package unreviewable as submitted. Default grade in Division 23 Heating, Ventilating, and Air Conditioning (HVAC): Fix and Resubmit.

A required submittal element (cut sheet, schedule, calculation, sample) is missing, leaving the package unreviewable as submitted. This guide covers how it shows up specifically in Division 23 Heating, Ventilating, and Air Conditioning (HVAC) submittals.

What to look for in Division 23 Heating, Ventilating, and Air Conditioning (HVAC)

Commonly required items in Div 23 specs:

  • Equipment schedules with all performance data at design conditions
  • AHRI certified ratings certificates
  • Electrical data (MCA, MOP, FLA for each unit)
  • Wiring diagrams and control schematics
  • Dimensional/weight data for structural coordination
  • Sound data at design operating point
  • Refrigerant piping diagrams (for split systems)
  • Duct layout/fabrication drawings (shop drawings)
  • Pipe material and fitting schedule
  • Insulation schedule
  • Seismic anchorage/bracing calculations and details
  • Vibration isolation schedule
  • Balancing device schedule (measuring stations, balancing valves)
  • Controls sequence of operations
  • Controls points list (BAS integration)
  • Warranty terms
  • O&M (Operation and Maintenance) manuals
  • Start-up procedures and checklists

How severe is it?

Default grade: Fix and Resubmit. The sub completes the package and resubmits before the PM can fully review.

Deviation Check assigns a default per category and escalates or de-escalates based on the spec, always showing its reasoning. See the Division 23 severity rules.

What the PM should do

Stamp the submittal Revise and Resubmit. Mark the deviation, return the relevant spec passage as a redline, and have the sub correct and re-send before fabrication or installation.

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Frequently asked questions

Which items are most commonly missing from Division 23 HVAC submittal packages, making the package unreviewable as submitted?

Equipment schedules with all performance data at design conditions and AHRI certified ratings certificates are the most frequently absent. Electrical data - MCA, MOP, and FLA for each unit - is routinely omitted, as are wiring diagrams, control schematics, and the controls sequence of operations. Seismic anchorage and bracing calculations with details and the vibration isolation schedule are also commonly missing and must be present before structural and MEP coordination can proceed.

What documentation does the controls integration and TAB scope require in a Division 23 HVAC submittal package before the PM can complete the review?

The package must include a controls points list for BAS integration alongside the sequence of operations. The balancing device schedule - measuring stations and balancing valves - and dimensional and weight data for structural coordination are also required. O&M manuals, start-up procedures and checklists, and warranty terms including compressor warranty coverage must appear in the package; any of these missing sends the submittal back without a full technical review.

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