A single commercial HVAC closeout package can run hundreds of pages across a dozen document types. TAB reports, refrigerant logs, ATC sequences, commissioning records, each with different sources and different requirements. Here's how to collect it all.
Every document required in a Division 23 HVAC closeout package, including who provides it and when it applies.
| Document | Applies |
|---|---|
| Test, Adjust & Balance (TAB) Report | Always |
| ATC/BAS Sequences of Operation (As-Built) | Always |
| AHU / RTU / FCU O&M Manuals | Always |
| Chiller / Boiler O&M Manuals | If applicable |
| Refrigerant Tracking Log (EPA Section 608) | Always |
| Equipment Start-Up Reports (Factory Authorized) | Always |
| Commissioning Report | If applicable |
| BAS Point-to-Point Checkout Documentation | Always |
HVAC is the trade most likely to delay closeout. The reason is structural: HVAC documentation comes from more separate parties than any other MEP trade. The TAB report comes from the independent balancing contractor. The ATC sequences of operation come from the controls contractor. The equipment O&M manuals come from multiple manufacturers. The commissioning report comes from the commissioning authority. The refrigerant tracking log, required by EPA, is often maintained by the mechanical contractor and rarely ends up in the closeout package.
As a GC PM, your job is to know all these sources and chase them simultaneously. The balancing contractor won't be back on site for any other reason; if you don't collect the TAB report at completion, you may spend weeks tracking it down. The controls contractor's sequences of operation may only exist in their project management system and may be archived when the project closes.
Start collecting HVAC closeout documents at substantial completion of mechanical rough-in, not at the end of the project. Most of this documentation takes weeks to finalize, and it's all on the critical path.
What each document is, why it's required, and what to watch for. Written for the GC PM collecting documents from multiple subs and engineers.
The TAB report is the most commonly requested and most commonly missing HVAC document in commercial closeout. A certified TAB report from a NEBB- or AABC-certified agency documents measured airflow at every diffuser, grille, and terminal unit; water flow at every coil and pump; and temperature differentials across major equipment. The report must be certified by the TAB agency and stamped by the responsible engineer.
The TAB report must cover every terminal unit in the building: every diffuser, every VAV box, every exhaust fan. A report missing even one space or one terminal is incomplete. Verify coverage against the HVAC design drawings before accepting the report.
The approved sequences of operation describe how the building automation system controls each piece of HVAC equipment. The as-built version must reflect the sequences as actually programmed and commissioned, not the design documents, which may have been revised during construction or controls startup. The as-built sequences are critical for the owner's FM team to troubleshoot and maintain the system.
Ask specifically for the as-built sequences, not the design sequences. The controls contractor should be able to provide a PDF of the sequences as programmed in the controller; if they can't, the sequences may not be updated.
Full operations and maintenance documentation for all air handling units, rooftop units, fan coil units, energy recovery ventilators, and other air-side equipment. Must reference the specific units installed, including manufacturer, model number, and serial number, not generic product line documentation.
Generic O&M binders pulled from the manufacturer's website are not acceptable if they don't match the installed units. Require model-specific documentation.
Complete operations and maintenance documentation for any central plant equipment including water-cooled or air-cooled chillers, boilers, cooling towers, and heat exchangers. Chiller and boiler O&M documentation is particularly important for owner FM teams because of the regulatory requirements for refrigerant management and annual boiler inspections.
Federal law under the Clean Air Act (EPA Section 608) requires documentation of the type and quantity of refrigerant charged into each system. This is not just a closeout formality; it is an ongoing federal compliance requirement. The closeout log documents the initial refrigerant charge for each piece of equipment, which the owner must maintain throughout the equipment's life.
This is one of the most consistently missing documents in HVAC closeout packages. Ask your mechanical sub specifically: 'Do you have the EPA 608 refrigerant tracking log with the refrigerant type and initial charge amount for every piece of equipment that contains refrigerant?'
Factory-authorized start-up reports confirm that major HVAC equipment was started up by a qualified technician and that warranty coverage is active. Manufacturers of chillers, boilers, large AHUs, and VRF systems typically require factory-authorized start-up as a condition of warranty. The start-up report documents operational parameters at startup.
Factory-authorized start-up is typically not the same as your own technician starting the equipment. Manufacturers like Carrier, Trane, Daikin, and others maintain their own factory-trained start-up networks. Confirm whether your equipment requires factory start-up before occupancy.
Documentation confirming that every monitored and controlled point in the BAS was individually verified, with the physical signal checked end-to-end from the field device to the BAS display. Point-to-point checkout is the most thorough commissioning step and its documentation is required by most commercial specs.
On projects with a commissioning authority, the final commissioning report documents all functional performance tests (FPTs), the issues log with resolution status, deferred testing items (if any), and the CxA's final recommendation. The issues log must show all items either resolved or formally deferred with owner acceptance.
A commissioning report with open issues is not a complete commissioning report. Confirm with the CxA that all issues are either resolved or formally accepted as deferred by the owner before including the report in the closeout package.
The codes and standards that define what's required in a Division 23 HVAC closeout package. Reference these when an owner or architect pushes back.
Requires commissioning and TAB documentation for many commercial HVAC systems. Referenced by most commercial energy codes and LEED.
Establishes minimum ventilation rates that the TAB report must confirm are achieved at design conditions.
The authoritative guideline for HVAC commissioning processes, documentation, and reporting.
Referenced by duct leakage testing requirements, relevant to TAB and commissioning scope.
The certification and procedural standard for NEBB-certified TAB contractors. The TAB report should reference NEBB standards.
Alternative certification body for TAB contractors. Either NEBB or AABC certification satisfies most commercial specs.
Federal requirement for documentation of refrigerant type and charge. Violation carries significant fines.
These are the specific issues that cause owner rejection, AHJ refusal, or retainage holds. Each one is documented with the root cause and how to prevent it.
A TAB report that covers the main air handling units but doesn't document airflow at every VAV box, diffuser, and exhaust grille is incomplete. Owners and architects review TAB reports to confirm that every space in the building is receiving its designed airflow. A missing room or a missing terminal is grounds for rejection.
Before accepting the TAB report, compare the terminal unit count in the report to the terminal unit schedule on the HVAC drawings. Every terminal unit must appear in the TAB report.
Your TAB contractor needs access to every room in the building during balancing. Coordinate access with the GC's superintendent; balancing cannot be completed in occupied or restricted spaces without coordination.
The design sequences of operation (from the engineer's specifications or the controls contractor's submittals) describe how the system was intended to be controlled. The as-built sequences describe how it was actually programmed. These are frequently different; controls contractors make programming adjustments during startup that are never reflected in the submitted documents.
Ask the controls contractor to provide a PDF export of the sequences as they exist in the controller today. If they provide you a copy of their shop drawing submittal instead, that is the design document, not the as-built.
The EPA Section 608 refrigerant tracking log is an ongoing federal compliance requirement. The closeout package establishes the baseline: the initial refrigerant type and charge amount for every system. Without this document, the owner has no record of what refrigerant type their systems contain, which is required for any future service work.
Ask your mechanical sub for the refrigerant tracking log by system. It should list: equipment tag, manufacturer, model, refrigerant type (R-410A, R-32, R-134a, etc.), and initial charge weight in pounds.
Equipment manufacturers including Carrier, Trane, Daikin, Mitsubishi, and others require factory-authorized start-up as a condition of their extended warranty. If the mechanical contractor started the equipment themselves without a factory-authorized technician, the extended warranty may be void. The owner will discover this when they file a warranty claim in year 3.
Before submitting closeout, confirm that all major equipment has factory start-up documentation. Call the manufacturer's warranty department if you're unsure.
Factory start-up is typically not optional on large equipment. Schedule factory start-up technicians early; they are often booked weeks out, and equipment cannot be commissioned until they've completed the start-up.
A CxA issues a commissioning report only after all functional performance tests are complete. If the report includes an issues log with unresolved items, the commissioning process is not complete. Some owners accept formally deferred items (e.g., seasonal testing that can't be completed before occupancy), but informal 'we'll get to it' items are not acceptable.
Review the issues log in the commissioning report before submitting closeout. Every item should have a status of 'Resolved' or 'Formally Deferred, accepted by owner in writing.'
The MasterFormat specification sections that govern Division 23 HVAC closeout. Pull these from the project spec to confirm exact requirements for your project.
The primary spec section governing TAB scope, certification requirements, and report format. Review this section for specific TAB contractor certification requirements (NEBB, AABC, or either).
Governs the commissioning scope, documentation requirements, and what must be submitted at closeout.
Controls and BAS requirements, including point-to-point checkout and sequences of operation.
Use this checklist when collecting documents from your subs and engineer. Print or save as PDF for your project files.
The things that don't appear in the spec but that experienced GC PMs know from hard experience. These are the insights worth sharing.
TAB contractors write reports after leaving the site. The longer you wait, the harder it is to get them back if there are discrepancies. Request the draft report immediately after field completion and set a firm deadline for the certified final version.
EPA Section 608 violations carry fines up to $44,539 per day per violation. When a mechanical sub pushes back on providing the refrigerant log, they're not just complicating your closeout; they may be non-compliant with federal law. This framing usually moves things along.
The sequences of operation PDF is useful for the FM team to read. But the BAS project file backup, the actual software file, is what allows a future controls contractor to modify the programming without starting from scratch. Some owners don't know to ask for this; many controls contractors don't volunteer it. It belongs in the closeout package.
Questions GC PMs and subcontractors ask most often about Division 23 HVAC closeout.
Closeout Desk collects, classifies, and organizes all your Division 23 HVAC documentation, plus every other division on the project. We flag what's missing before you submit, so you're not discovering gaps after the owner reviews the package. Fixed-fee pricing. Delivered in 1–10 business days depending on urgency.
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