Confirm the configuration the specification’s system description keeps (single module, parallel, redundant, or scalable), then compare it with the one-line, the maintenance bypass arrangement, the battery and its disconnect, and the room plan. After that, trace the battery room ventilation and hydrogen monitoring, the remote emergency power off switch, the remote monitoring panel, and any generator interface to the sheets that show them.
Assemble the review package
Gather the electrical one-line and riser, the UPS and battery room plan and elevations, the panel schedules for the UPS input, bypass, and output, the mechanical drawings for the room’s cooling and battery exhaust, the generator and transfer switch drawings if the UPS is backed by a generator, the structural or seismic details for battery racks, and the issued Section 26 33 53 with its edits. Review one UPS from its input source to its critical load before assuming a second system matches.
WBDG publishes UFGS 26 33 53: Static Uninterruptible Power Supply (UPS) as a public guide-specification reference (accessed October 18, 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 |
|---|---|---|
| System configuration | System Description article + one-line diagram + UPS schedule | Does the configuration the specification keeps (non-redundant, redundant, or scalable) match the number of modules, the system cabinet, and the output arrangement drawn on the one-line? |
| Input and bypass sources | System Description article + one-line + panel schedules | Where the specification connects an alternate source to the bypass or maintenance bypass, do the one-line and panel schedules show a separate bypass feeder? |
| Maintenance bypass arrangement | Maintenance Bypass Circuit article + one-line + room plan | Is the maintenance bypass drawn in the enclosure type the section selects (adjacent cabinet, wall-mounted, or free-standing), with the interlocked switches it describes? |
| Load bank connection | Load Bank Protection Device article + one-line + room plan | If the load bank protection device is retained, is it shown on the one-line with a place to connect a portable load bank? |
| Battery, disconnect, and anchorage | Battery System, Battery Disconnect, and Seismic Requirements articles + room plan + structural details | Do the drawings show the battery type, rack or cabinet, and disconnect the section calls for, with the restraint the retained seismic requirements expect? |
| Cooling, ventilation, and hydrogen monitoring | Temperature Control and Hydrogen Gas Monitoring System articles + mechanical plans | Is the battery area ventilation drawn, and is the hydrogen sensor shown where the section says, with an exhaust fan it can start? |
| REPO and remote monitoring | Remote Emergency Power Off (REPO) Switch and Remote Monitoring Panel articles + electrical plans | Are the remote emergency power off switch and the remote monitoring panel located on the plans, separate from the UPS and near the critical load where indicated? |
| Generator interface | Emergency Control Contacts and Generator Operation articles + transfer switch drawings | Where a generator backs the UPS, do the drawings show the contacts to the automatic transfer switch, and does the test plan include operation on generator power? |
Worked example: a redundant specification with a single-module one-line
Illustrative example: the issued Section 26 33 53 keeps the parallel redundant configuration and the system cabinet. The one-line shows one UPS module feeding a maintenance bypass cabinet directly, and the room plan has floor space for a single module and one battery cabinet.
Ask the electrical engineer which configuration is intended, then align the one-line, room plan, UPS schedule, and specification. If redundancy is intended, recheck the battery quantity, the bypass feeder, and the room cooling against the added module before closing the item.
Avoid a false conflict
Section 26 33 53 carries many bracketed choices and drafting notes. A choice left in the issued section is a requirement, so read the edited project section rather than the guide.
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.