Rooftop HVAC Unit Inspection Logger
RTU walkdown — filters, coils, belts, economizers, condensate, curbs, gas/electrical and roof-interface items; unit-tagged offline log.
New rooftop unit inspection
Quarterly PM rounds typical (monthly filters in dusty service); heating-season gas checks before first firing.
Field guide: Rooftop HVAC Unit Inspection Logger
Rooftop units die young for the dumbest reasons: filters loaded until coils become the filter, condenser fins matted with cottonwood, belts run to threads, and economizers — the highest-ROI component on the roof — stuck in whatever position they failed in years ago. Field studies put economizer failure above 60% of units checked, silently costing both energy (stuck closed wastes free cooling) and coils (stuck open freezes them). This logger walks the unit in failure-frequency order, with the roof interface included because RTUs are also the roof's most common leak suspects.
Safety-class findings are the gas-and-electrical shortlist: gas odor at the unit, damaged disconnects and chafed whips, cracked heat-exchanger suspicion before heating season, and the condensate overflow that's already finding the ceiling below. 'Panels missing or loose' is flagged because an opened cabinet in wind becomes both a projectile and a rain scoop for the electronics inside.
Field tips
- Stroke the economizer manually each visit — command it open and closed and watch; sensors lie, linkages tell the truth.
- Hold a light behind condenser coils: if it doesn't pass, neither does air, whatever the gauges say.
- Walk the membrane around each unit for screws and panel parts after any service visit — your roof log and RTU log meet right there.
Records are stored only in this browser (localStorage) — export regularly. This tool aids field documentation; it does not replace your agency's official inspection procedures or engineering judgment.
Rooftop HVAC Unit Inspection Logger — RTU walkdown — filters, coils, belts, economizers, condensate, curbs, gas/electrical and roof-interface items; unit-tagged offline log. Free, offline-first and GPS-aware: open it on any phone, log in seconds, and hand your GIS team clean GeoJSON.
About Rooftop HVAC Unit Inspection Logger
Rooftop units die young for the dumbest reasons: filters loaded until coils become the filter, condenser fins matted with cottonwood, belts run to threads, and economizers — the highest-ROI component on the roof — stuck in whatever position they failed in years ago. Field studies put economizer failure above 60% of units checked, silently costing both energy (stuck closed wastes free cooling) and coils (stuck open freezes them). This logger walks the unit in failure-frequency order, with the roof interface included because RTUs are also the roof's most common leak suspects.
How to use Rooftop HVAC Unit Inspection Logger
- 1Enter the unit tag and tap 📍 GPS to pin the rooftop unit's exact location (or type coordinates).
- 2Work through the rooftop unit checklist — every field matches what a real inspection program records.
- 3Pick a condition on the Running well / PM items / Repair needed / Failure/safety ⚠ scale; actionable findings are tallied automatically.
- 4Add notes and log the inspection — it saves instantly to your device, even with zero signal.
- 5Export the round as CSV for your asset system, GeoJSON for the GIS, or print a clean report.
Why use Rooftop HVAC Unit Inspection Logger?
- ✓100% free, no sign-up — built for crews, not per-seat licences
- ✓Offline-first: records save to your device instantly and survive dead zones
- ✓One-tap GPS tagging with accuracy capture on every record
- ✓Exports CSV for asset systems, GeoJSON for GIS, and print-ready reports
- ✓Checklist and guidance aligned with ASHRAE/ACCA Standard 180
Frequently asked questions
Why do economizers fail so often and silently?+
They're mechanical dampers with linkages, sensors and actuators living in outdoor air, controlled by logic nobody watches. Failure makes no noise: the unit still heats and cools, just expensively (stuck closed) or destructively (stuck open in winter). Periodic manual stroking — logged here — is the only honest test most units ever get.
How serious is a clogged condensate drain?+
On a roof, the pan overflows into the unit and onto the membrane — corroding the pan, shorting components, and ponding at the curb; over occupied space, it's the ceiling stain. Overflow float switches (and verifying they're actually wired to shut the unit) plus seasonal trap checks are the cheap insurance this log tracks.
When must heat exchangers be inspected?+
Before each heating season is the standard practice on gas RTUs of age — cracked exchangers can pass CO into supply air. Field signs that move inspection up: flame disturbance when the blower starts, soot, repeated rollout trips. 'HX inspection due' in this log is the scheduling hook; the inspection itself is a combustion-qualified task.
What's the right filter change frequency?+
Whatever loading says, not the calendar: a quarter-season in dusty service, longer with good MERV-8s in clean ones. The log's 'filters loaded' findings per unit teach you each unit's real interval. Gaps and wrong sizes matter as much as dirt — bypassed air fouls coils with the dirt the filter never saw.
Embed Rooftop HVAC Unit Inspection Logger on your website
Want Rooftop HVAC Unit Inspection Loggeron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/rooftop-hvac-inspection-logger" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Rooftop HVAC Unit Inspection Logger — ToolJolt" loading="lazy"></iframe>Related GIS tools
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