Trace each protected space into the section’s system sequence, then compare the detection, abort and manual release stations, HVAC shutdown and damper closure, door closers, room integrity, and cylinder location with the drawings. Read the section’s exclusions article closely: power to the releasing panel, interlock wiring, ventilation and overpressure relief, and the structural check for cylinders may be assigned to other trades and must appear on their drawings.
Assemble the review package
Gather the suppression plans and isometrics, the fire alarm plans with the releasing control unit, detectors, abort and manual release stations, the architectural plans and wall types for the protected room, the mechanical plans showing ducts, dampers, and HVAC controls, the electrical plans for the panel circuit and any equipment shutdown, the structural framing under the cylinders, and the issued Section 21 22 00. Review one protected space completely before assuming another is drawn the same way.
WBDG publishes UFGS 21 22 00: Clean Agent Fire Extinguishing Systems as a public guide-specification reference (accessed October 17, 2026). Use your project’s issued specification and amendments for the actual comparison; the guide specification does not automatically govern your project. The checklist below is an original suggested review workflow, not a reproduction of the UFGS requirements.
Eight checks to run against the issued set
Use one record per location or system. The CSV contains the same eight prompts plus fields for source revisions, observed evidence, the review owner, the decision, and closure references.
| Check | Sources to compare | Question to resolve |
|---|---|---|
| Protected space limits | Scope article + suppression plans + architectural plans | Does each protected space match between the suppression and architectural drawings, including raised floor and ceiling spaces where specified? |
| System sequence | System Sequence article + fire alarm sequence or matrix | Do the detection stages, pre-discharge, time delay, and release in the specification match the fire alarm sequence drawn for the room? |
| Abort and manual release stations | Manual Release Stations and Abort Stations articles + plans | Are abort and manual release stations drawn at the exits of each protected space? |
| HVAC shutdown and dampers | System Sequence article + mechanical plans + damper schedule | Are the HVAC units and the smoke or fire/smoke dampers that the sequence shuts down shown and controlled on the mechanical drawings? |
| Room integrity and pressure relief | Room Pressurization Test article + wall types + door hardware + Exclusions article | Do the wall types, penetrations, door closers, and any overpressure relief vent the exclusions assign to others appear on the architectural and mechanical drawings? |
| Cylinders and support | High-Pressure Containers article + equipment plan + structural drawings | Is a cylinder location drawn with access, and has the structural check the exclusions assign to others been shown? |
| Power and interlock wiring | Exclusions article + electrical plans + panel schedules | Are the releasing panel circuit and the interlock wiring the section assigns to others shown on the electrical drawings? |
| Warning signs | Warning Signs article + door elevations or signage plans | Are the protected-space, manual release, and system control signs the section requires located on the drawings or signage schedule? |
Worked example: an overpressure vent nobody drew
Illustrative example: Section 21 22 00 is edited so mechanical ventilation and overpressure relief are provided by others. The suppression drawings protect a communications room, but the mechanical plans show no relief vent for that room and the wall types show an unsealed ceiling plenum above it.
Ask the fire protection and mechanical designers who provides the relief vent and how the room boundary is sealed, then show both on the mechanical and architectural drawings. Recheck the door hardware for closers on the same room before closing the item.
Avoid a false conflict
Exclusions in a specification move work, they do not remove it. When an article says another trade provides something, check that trade’s drawings rather than assuming it is covered.
When requirements disagree, follow the project’s document-control and clarification process. Do not assume that drawings always override specifications, or the reverse. Identify the exact sources and request an authorized decision.
Close the issue across the affected documents
Record the location or tag, drawing and specification references, issue dates, observed difference, and the decision needed. Assign an owner and keep the item open until the response identifies the governing requirement. Check the revised drawings and specification references together; a response email alone may leave the issued package inconsistent.
For the overall process, use the guide to drawing and specification conflicts. Mark an inapplicable checklist row with a reason, and distinguish a verified correction from a question that still needs design information.
Where Groundbook fits
Groundbook’s drawing and specification review helps investigate potential disagreements in the documents you supply. Include the relevant specification sections and drawing references, then verify the cited evidence with the responsible reviewers before acting on a finding.