Bryant GZ Geothermal Heat Pump.

A Preferred Match with Your High Efficiency Furnace or Fan Coil

The Bryant® GZ model offers high-efficiency geothermal cooling performance and is designed to be coupled with a gas/propane furnace or fan coil. It features a quiet, two-stage scroll compressor and, in the right combination, can allow you to enjoy the benefits of Hybrid Heat® technology to gain efficient geothermal heating before switching over to gas in colder weather.

  • EER Efficiency Range: 15.4 to 28.8 EER (closed loop); 19.2 to 30.5 EER (open loop)
  • COP Efficiency Range: 3.4 to 4.6 COP (closed loop); 3.9 to 5.1 COP (open loop)
  • Compressor Type: Two-Stage Scroll


  • Manage your utility costs with high-efficiency comfort (efficiency is unit size dependent):   Closed loop cooling EER – Up to 28.8;  Closed loop heating COP – Up to 4.6
  • Two-stage scroll compressor operation allows longer, more consistent cycles in lower stage for savings and comfort 
  • Optimal dehumidification capability with the Evolution Connex™ control
  • Insulated cabinet and compressor blanket for quiet operation
  • Wide operating temperature range with exceptional cold weather performance
  • Compatible with a wide range of furnaces and fan coils

Optional Features

  • Supplemental, domestic hot water generation


Efficiency Management 

  • Cooling Efficiency 15.4 to 28.8 EER (closed loop); 19.2 to 30.5 EER (open loop)
  • Heating Efficiency 3.4 to 4.6 COP (closed loop); 3.9 to 5.1 COP (open loop)
  • Heating and Cooling Stages Two-stage operation for efficiency and comfort
  • Hybrid Heat® System Capable Allows gas furnace/heat pump system combination use for heating season
  • ENERGY STAR® ENERGY STAR® qualified in all sizess (6-ton size only qualifies when paired with a properly sized evaporator coil)


  • Quiet Levels Quiet operation enhanced by full cabinet insulation; double-isolation compressor mounting and compressor sound blanket


  • Maintenance Reminders With Evolution Connex control


  • Blower Motor Dependent on furnace or fan coil paired with
  • Compressor Two-stage scroll
  • Control Board Microprocessor with compressor diagnostic capability
  • Refrigerant Puron® refrigerant
  • Refrigerant Management Thermostatic expansion valve


  • Placement Indoor


  • Capacity 2-6 tons
  • Construction Galvanized steel
  • Paint Baked-on urethane base coat and polyester top coat