FTKF35XV16MAA has the highest ISEER in the current catalogue at 6.60, at 1.0 Ton. Within the 1.5 Ton range specifically, FTKF50XV16MAA leads at 6.30 ISEER.
📐 Calculated estimate
Based on real BEE-certified data — see the exact numbers below.
ISEER isn't constant across tonnages within the same efficiency tier — the highest-ISEER model overall is a smaller-capacity unit, since achieving very high efficiency is somewhat easier at lower cooling loads. If you specifically need 1.5 Ton, FTKF50 is the real efficiency leader at that size, not the catalogue-wide highest.
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✅ Daikin/BEE published spec
📐 Calculated from verified data