ISEER is certified against a standard 1,600-hour annual test cycle (8 hours/day × 25 days/month × 8 months/year) across a defined set of outdoor temperature bins from 24°C to 43°C, weighted by how many hours each temperature typically occurs in an Indian cooling season. It measures total cooling delivered divided by total electrical energy consumed across that whole cycle — not a single fixed-condition test.
📐 Calculated estimate
Based on real BEE-certified data — see the exact numbers below.
This is why ISEER is considered more realistic than a simple single-point efficiency rating — a compressor rarely runs at one constant outdoor temperature all season, so ISEER's bin-weighted approach better reflects real seasonal performance. See our BEE methodology page for the full temperature-bin breakdown used in this certification standard.
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✅ Daikin/BEE published spec
📐 Calculated from verified data