Evaporative Cooler Verification Checklist PDF

Full QC Checklist+

Verify inputs/sizing method, humidity suitability screening, airflow and pad sizing, and installation/operation.

✓22 Inspection Points

✓4 Verification Categories

✓Inputs & Sizing Method+

Room/zone area accurately measured, not guessed
Ceiling height entered accurately, not left at the 8 ft default for a taller space
Air Exchange Rate selection matches actual local climate conditions, not left at Standard by default
Climate Humidity Level selected based on actual local weather data, not an optimistic guess
Cooling Pad Type matches the actual media being purchased, not just a default

✓Humidity Suitability Screening+

Suitability screening result reviewed and understood as a preliminary, humidity-tier-based flag, not a definitive design determination
If flagged: a refrigerated AC/heat pump alternative seriously considered, after checking the location's actual design wet-bulb temperature, not just this RH tier
If flagged Reduced Effectiveness: expectations set appropriately for a smaller comfort improvement than the CFM figure alone suggests
Local design wet-bulb temperature checked against a weather-data source for a more precise assessment beyond this simplified RH-tier screening, for a borderline or high-stakes installation

✓Airflow & Pad Sizing+

Required CFM checked against the actual unit's rated CFM specification before purchasing, not assumed to match exactly
Once a specific unit is selected, its rated CFM re-entered into the Actual Unit CFM field so pad area, relief vent, and water usage reflect the real unit, not just the bare calculated minimum
Pad Area checked against the specific unit's actual pad dimensions, not assumed to match this calculator's figure exactly
Multiple smaller units (or ducted distribution) considered for a large or oddly-shaped space instead of one oversized single unit
Water Usage range (not a single fixed number) used when sizing a reservoir, water line, or float valve
Elevation/altitude correction consulted separately (manufacturer spec or a qualified installer) for an installation above roughly 2,000-3,000 ft

✓Installation & Operation+

Relief/exhaust path confirmed available and sized at or above the Relief Vent Area result before operating the unit
Water supply line, float valve, and drain/bleed-off sized and connected per the unit manufacturer's installation instructions
Pad wetness and water distribution checked evenly across the full pad face after startup
Pad replacement/cleaning scheduled per the manufacturer's recommended interval, not left until performance visibly drops
Unit drained and winterized before freezing weather, in any climate where it applies
Structural support for a roof-mounted unit confirmed adequate by a qualified installer before installation
Licensed HVAC/cooling contractor sign-off obtained before relying on this as a final design

Inspection Notes+

Use the latest approved drawings, specifications, and site measurements.

Complete all critical checks before proceeding to the next work stage.

Record deviations and confirm rectification where required.

Inspection Notes

Use the latest approved drawings, specifications, and site measurements.

Complete all critical checks before proceeding to the next work stage.

Record deviations and confirm rectification where required.

Use it after collecting the project inputs and again before approving or closing the relevant work stage.

No. It supports verification but does not replace approved drawings, specifications, codes, manufacturer requirements, or professional inspection.