*1. Concentrated winding motors are installed in the 10, 12, 18 and 20HP outdoor units.
*2. Energy efficiency ratio (EER): an indicator of performance calculated by dividing rated cooling capacity (kW) by electricity consumption (kW). The higher the EER value, the higher is the level of energy-saving efficiency.
*3. Coefficient of performance (COP): the ratio of a system's useful energy output versus the system's energy input. Similar to EER, in the case of heating, COP value is calculated by dividing heating capacity (kW) by electricity consumption (kW). The higher a system's COP, the higher is its energy-saving efficiency.