Product Comparison: Geothermal Heat Pumps

  Preferred™ Series Geothermal GT
Preferred™ Series Geothermal GT
GT-PG Geothermal 50YE
Preferred™ Series Geothermal GP
Legacy™ Series Geothermal  GB
Legacy™ Series Geothermal GB
Preferred™ Series Indoor Split Geothermal GS
Preferred™ Series Indoor Split Geothermal GS
Preferred™ Series Hydronic-use Geothermal GW
Preferred™ Series Hydronic-use Geothermal GW
Comfort Features
Summer dehumidification Compressor enhanced Compressor enhanced Check Compressor enhanced N/A
Cold weather performance Best Best Check Check Check
Efficiency
Cooling EER (Closed Loop) 18.5 to 32.0 15.5 to 24.5 18.5 to 21.7 15.4-26.4 14.6-22.1
Heating COP (Closed Loop) 3.8 to 4.7 3.5 to 4.0 3.7 to 4.3 3.4-4.5 3.0-3.2
Cooling EER (Open Loop) 23.1-37.0 19.6-30.0 21.4-28.1 19.2-30.5 18.8-25.7
Heating COP (Open Loop) 4.2-5.2 4.0-4.6 4.3-5.2 3.9-5.1 3.4-3.8
ENERGY STAR® qualified All sizes qualify All sizes qualify All sizes qualify Select sizes qualify1 All sizes qualify
Hybrid Heat® system compatible N/A N/A N/A Check N/A
Sound
Blower motor speed Variable Variable Multi-speed Fan Coil or Furnace dependent N/A
Double isolation compressor mounting Check Check Check Check Check
Insulated cabinet Check Check Check Check Check
Design Features
Compressor type 2-stage scroll 2-stage scroll Single-stage scroll 2-stage scroll 2-stage scroll
Stainless steel drain pan Check Check Check N/A N/A
Corrosion-resistant air coil Check Check Check N/A N/A
Included replaceable air filter 2" MERV 13 2" MERV 8 1" MERV 8 N/A N/A
Sizes
Available capacities 2 thru 6 tons 2 thru 6 tons 1.5 thru 5 tons 2 thru 6 tons 2, 3, 4, 5, 10 tons
Peace of Mind
Parts limited warranty 10-year2 10-year2 10-year3 10-year2 10-year2

1 The 6-ton size of this heat pump model must be matched with a furnace/evaporator coil combination to be ENERGY STAR® qualified and eligible for a Federal tax credit. All other sizes can be paired with either a furnace/evaporator coil combination or a fan coil. Ask your dealer for details.

2 To the original owner, when installed in a residence, a 10-year parts and labor limited warranty upon timely registration of equipment. Warranty period is 10 years on parts and 5 years on labor if not registered within 90 days of installation. Original owners residing in jurisdictions that prohibit warranty benefits conditioned on registration will automatically receive a 10-year parts and labor limited warranty. See warranty certificate for details.

3 To the original owner, when installed in a residence, a 10-year parts and 5-year labor limited warranty upon timely registration of equipment. Warranty period is 5 years on parts and labor if not registered within 90 days of installation. Original owners residing in jurisdictions that prohibit warranty benefits conditioned on registration will automatically receive a 10-year parts/5-year labor limited warranty. See warranty certificate for details.

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