A 3-ton residential air conditioner requires 400 CFM per ton. What total airflow should the system deliver?

A 3-ton residential air conditioner requires

Multiple choice — select the best answer

A800 CFM
B400 CFM
C1,200 CFM
D1,600 CFM

✓ Correct answer: C. 1,200 CFM 400 CFM/ton × 3 tons = 1,200 CFM. The 400 CFM/ton rule of thumb is a standard residential design target ensuring adequate sensible heat removal and coil performance.

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Topic: Airflow & Ductwork

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A 3-ton residential air conditioner requires 400 CFM per ton. What total airflow should the system deliver?

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