Greenspeed ™Intelligence

INFINITY® 20 HEAT PUMPgreenspeed

The Infinity series heat pump with Greenspeed intelligence is the first of its kind. No other ducted, air source heat pump can beat its 13 HSPF rating for heating efficiency. It’s a winner too when it comes to cooling. But perhaps the biggest story is what it can do for your home comfort.

Greenspeed intelligence is created by pairing adaptable-speed technology with our Infinity control’s intelligence. The unique, variable-speed compressor of this unit, when managed by the Infinity control as part of a complete Infinity system, allows it to literally adapt its output to the needs of the home. With infinite adjustments between 40 and 100% capacity, it gives the home only the amount of cooling or heating necessary. This allows the system to operate longer at steadier, lower capacities, which ensures incredible energy efficiency and quiet operation with tighter temperature control than standard systems.

What is Greenspeed?

Greenspeed intelligence is the latest breakthrough by the Carrier Corporation, designed to provide high-efficiency solutions for your HVAC system. Greenspeed technology is combined with the adaptable speed technology of the company’s Infinity® series of products, providing the system with an innate ability to adjust to the comfort needs of any dwelling with great precision and to do so in a highly efficient manner.

Adaptable speed technology is the key to the Infinity® Series’ exceptional functionality. By combining Greenspeed intelligence with this technology, it unlocks the full potential.

How does Greenspeed intelligence work?

The Infinity® system control uses all of the information it knows to help the system run more efficiently and effectively. And that control knows quite a bit! Information such as the outdoor temperature, the comfort choices of the home’s occupants, the home’s energy use and other factors about the overall system are captured by the Infinity® control. The information collected by the control then allows the adaptable speed Carrier system to adapt to the proper heating or cooling output in tiny increments. When that information is combined with the advanced GreenspeedTM intelligence, the system can continually respond to the Infinity® control’s commands in very subtle ways to precisely meet the comfort needs of the home.

Learn more about our amazing Greenspeed intelligence units in the Innovation section.


  • Up to 20.5 SEER cooling efficiency
  • Up to 13 HSPF heating efficiency
  • Sound: as low as 58 decibels
  • Greenspeed intelligence
  • Optimal humidity and temperature control
  • Variable-speed compressor operation for ultimate comfort and quiet
  • Compressor sound blanket and Silencer System II™ design
  • Filter drier system protection from moisture and contaminants
  • Ideal Defrost heating operation with Infinity control
  • WeatherArmor™ Ultra protection
  • Non-ozone depleting Puron® refrigerant
  • 10-year parts limited warranty


  • Up to 20.5 SEER
  • Up to 16 EER
  • Up to 13 HSPF
  • All sizes achieve ENERGY STAR® Most Efficient 2012 designation


  • Optimal summer dehumidification
  • Load matching performance with speed ranges between 40 and 100%
  • Cold weather performance: exceptional heating capacity at outside temperatures in the teens.
  • Hybrid Heat® system compatible
  • Sound: as low as 58 decibels


  • Greenspeed intelligence
  • Variable-speed compressor
  • System-protecting, high-pressure switch, and low-pressure transducer
  • Sound reduction: compressor sound blanket, Silencer System II™ design and forward-swept fan blades
  • Filter Drier
  • Infinity level advanced diagnostic intelligence
  • Recommended control: Infinity control