1. Market “Assessment and Field M&V Study for Comprehensive Packaged A/C Systems Program”;ADM,2009
2. Assessment of HVAC Installations in New Homes in APS Service Territory;Blasnik,1996
3. Common faults and their impacts for rooftop air conditioner;Breuker;HVAC&R Res.,1998
4. An experimental study on the performance of inverter heat pump with a variation of frequency and refrigerant charging rate;Cho;Korea J. Refrigeration,2005
5. The effect of improper refrigerant charge on the performance of a heat pump with an electronic expansion valve and capillary tube;Choi;Energy,2001