The minimum efficiency standards for air conditioning systems are the efficiency level that the manufacturer must achieve when producing the most efficient model of the unit. These standards are designed to ensure that the least efficient models are the most expensive models, so that the least efficient models are not sold to consumers. The efficiency standards for air conditioning systems are based on the type of cooling system installed in the home. The three types of cooling systems are: air-to-air, air-to-water, and air-to-earth.
Air-to-air systems use the outdoor air to cool indoor air. The efficiency standards for air-to-air systems are 2.5 Btu per cubic foot per hour for cooling and 2.5 Btu per British thermal unit for heating. The cooling efficiency standard is equivalent to 13.5 watts per square foot. The heating efficiency standard is equivalent to 13.5 watts per square foot.
Air-to-water systems use the outdoor air to cool water. The efficiency standards for air-to-water systems are 2.5 Btu per cubic foot per hour for cooling and 3.5 Btu per gallon for heating. The cooling efficiency standard is equivalent to 13.5 watts per square foot. The heating efficiency standard is equivalent to 18 watts per square foot.
Air-to-earth systems use the outdoor air to cool earth. The efficiency standards for air-to-earth systems are 2.5 Btu per cubic foot per hour for cooling and 3.5 Btu per gallon for heating. The cooling efficiency standard is equivalent to 13.5 watts per square foot. The heating efficiency standard is equivalent to 18 watts per square foot.
The minimum efficiency standards for air conditioning systems are the efficiency level that the manufacturer must achieve when producing the most efficient model of the unit. These standards are designed to ensure that the least efficient models are the most expensive models, so that the least efficient models are not sold to consumers. The minimum efficiency standards for air conditioning systems are 2.5 Btu per cubic foot per hour for cooling and 2.5 Btu per British thermal unit for heating.The maximum efficiency standards for air conditioning systems are the efficiency level that the manufacturer can achieve for each type of air conditioning unit. The maximum efficiency standards for air conditioning systems are 3.5 Btu per gallon for heating and 13.5 watts per square foot for cooling.