Load & DesignQuestion 9 of 110
Oversizing a residential air conditioner most commonly leads to which problem?
a.Higher heating capacity
b.Short cycling and poor humidity control
c.Lower refrigerant pressures
d.Reduced supply air temperature
Explanation
An oversized unit cools the air quickly and satisfies the thermostat before it runs long enough to remove moisture, causing short cycling. The result is a cool but clammy space and increased wear from frequent starts. Correct sizing from Manual J and S avoids this.
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