HDT has developed the next generation family of energy efficient ECUs (EEECUs) covering the range of 9,000 BTU/hr to 120,000 BTU/hr (2.6kW – 35.2kW). These ECUs deliver their rated capacity at 130°F (51.6°C) using the environmentally acceptable refrigerant R-410A. The EEECUs deliver Energy Efficiency Ratings (EERs) 20% higher than the current ECUs available in the market (as measured in BTU/W). Equipped with remote control, 50ft (15.2 m) remote cable and comprehensive on- board diagnostics. Accommodates co-axial return duct interface. Two-speed evaporator provides more comfortable heat mode operation.