The system shown here is of an ICP 3 ton 13 seer gas package unit. The system we removed is a Carrier 5 ton 10 seer gas package unit. This latter system is and was far too large for this house… By installing a unit that is properly sized for the living space, versus one that is oversized, the operational life of the equipment is prolonged, the utility bills are reduced significantly, and the air is more comfortable.

When a unit is oversized, it starts and stops considerably more than a properly sized unit. This is undesirable because startup is the time when most wear takes place on the electrical components. It also has the negative effect of consuming more energy, because at startup a unit works harder than it does during regular run time. Furthermore, an oversized unit removes much less humidity from the air, due to insufficient run time. An oversized unit cools down the air, but, unfortunately, leaves it damp. This is due to the fact that more time is required to dry the air than to cool the air.

An undersized unit can be worse than an oversized one, and for obvious reasons. An undersized unit never brings the living space down to a cool, comfortable level during the summer, and may have trouble heating up the conditioned space in the winter months. An undersized unit continuously runs, but fails to keep the people inside the house comfortable.