Previous Year Question

Correct Answer

A — BEE 3 star

Concept and Reasoning

For an ECBC Building, the code table for unitary/split/packaged air conditioners requires an air-cooled split/window unit up to about 10.5 kWr cooling capacity to meet at least BEE 3-Star efficiency. Therefore the ≤10 kWr unit in the question corresponds to option A.

Calculation / Key Relation

ECBC Building, split AC ≤10.5 kWr: minimum BEE 3 Star

Exam Takeaway

Distinguish ECBC from ECBC+ (higher star) and SuperECBC (still higher).

Common Mistake

Do not apply ECBC+ or SuperECBC star requirements to a question that says only “ECBC building.”