What phenomenon occurs if an HVAC system is oversized?

An oversized HVAC system can lead to short cycling, which means that the system turns on and off frequently rather than running for an extended period to reach a comfortable temperature. This happens because the system has more capacity than needed for the space it is intended to cool or heat.

When short cycling occurs, the HVAC unit does not run long enough to dehumidify the air effectively or maintain a consistent temperature. This can result in inefficiencies, as the system uses energy each time it starts up, which can lead to higher energy costs. Additionally, frequent cycling can increase wear and tear on the system, leading to potential maintenance issues and reduced lifespan.

In contrast, an adequately sized HVAC system would operate more consistently, providing better temperature control and humidity management, contributing to overall efficiency and potentially lower energy costs.