GSHP 2-TONVERTTopVertLtRetCuprDesupR454BGCA Geothermal 2.0 Tons Vertical 31.5 EER 6.2 COP 208/200-1-60 Single PhaseEvolution™ Variable-speed Geothermal Heat PumpHigh-Efficiency Models for Exceptional Comfort and Energy SavingsFor the ultimate in quiet operation and comfort, consider the versatile and feature-rich Evolution Series GCA models with two-stage compressor operation and variable-speed blower. Our top-of-the-line Evolution geothermal products deliver the highest efficiencies we offer. When installed with the Evolution™ Connex™ Control you'll receive optimal summer dehumidification and even temperatures. SPECIFICATIONS NAME VALUE Refrigerant R454B Compressor Stage 2 Max Water Working Pressure (PSIG/kPa) 400 Compressor Type Scroll Hot Water true Water Loop Heat Pump BTU 28500 Water Loop Heat Pump COP 5.6 Water Loop Heat Pump EER 16.5 Maximum COP 6.2 Minimum COP 4 Maximum EER 31.5 Minimum EER 16.5 BTU Output 18000 Nominal EER 18.5 Efficiency (MERV) 8 Maximum Circuit Breaker 25 Maximum Voltage 230 Minimum Voltage 208 Compressor RLA 10.3 Frequency 60 LRA 62 MCA 17.2 Phase Single Blower Motor Nominal RPM 1400 Blower Motor Fan Speeds Variable - Speed Blower Motor HP 0.33333333333333331 Blower Motor Type Variable-Speed, Constant Airflow ECM Blower Wheel Diameter 10 Blower Wheel Width 8 Indoor Fan Motor FLA 4.4 Configuration Vertical Metering Device Cooling TXV Filter Height 27 Filter Length 19 Filter Width 2 Tonnage 2 Sound Blanket true