A common misconception in the residential HVAC space is the larger the system, the better the result. Unfortunately, oversized systems can result in “short cycling,” which can lead to humidity problems particularly in warmer climates. Short cycling also burns through the life cycle of critical components including the compressor and contactor. Conducting a thorough load calculation by a licensed professional ensures systems are properly matched to the needs required. All else equal, a system should run for longer cycles rather than shorter cycles.
Craig Sopo 