Hot and cold spots, allergies, mugginess, and dryness are all common complaints associated with older and less efficient air conditioning systems. A major difference between a standard AC system and higher efficiency system is the ability for the newer system to ensure comfort and air quality in your home.
Oversizing is a huge problem in the HVAC industry. Systems that are oversized end up turning on and off constantly and run for very short periods of time. Not only does this tax the system and use more energy, but the system does not run long enough to dehumidify. As we mentioned earlier, humidity makes your home sticky and increases dust mite reproduction. BERTIE comfort consultants ALWAYS do a load calculation to determine the correct size unit for your home.
More efficient systems, like the Trane XL20I and XL16I, offer multi-stage and multi-compressor outside units. These features allow the systems to run on lower speeds during mild days and higher speeds when necessary. These systems help eliminate hot and cold spots, mugginess, and pass more air through the filter which helps to reduce airborne particles and contaminants.