Besides a unit's EER or SEER, there are additional energy saving features to look for when selecting an air conditioner for your home. Look for high efficiency fan or blower motors and scroll compressors. Both over and under sizing lead to poor operating efficiency. The size of the unit is a function of the compressor, the main energy-consuming component. The larger the compressor the more energy will be required to operate the system.
Frequent cycling prevents the air conditioner from adequately dehumidifying the air.
Both dehumidification and cooling are necessary for an air conditioner to provide comfortable indoor conditions during hot, humid weather. An undersized unit will operate longer and may not have the capacity to adequately cool the house to the desired temperature and may not dehumidify the house properly. Many utilities provide customers with guidelines and recommendations for proper sizing of heating and cooling equipment. Installation and Maintenance Guidelines General maintenance of your air conditioning equipment is simple and will keep the unit working at optimal performance. The following are some guidelines that should be followed.