24 = AC / Product Series
V = VS AC / Product Family
N = Infinity Series / A = Puron
0 = 20 SEER / SEER
A = Standard / Variations
3 = 208/230-1 / VoltageCarrier’s 24VNA0 with Greenspeed™ Intelligence is a variable speed cooling product providing up to 20.5 SEER cooling efficiency. Lower speed operation, when needed in cooling, for enhanced comfort and dehumidification.
This product has been designed and manufactured to meet Energy Star® criteria for energy efficiency when matched with appropriate coil components. Refer to the combination ratings in the Product Data for system combinations that meet Energy Star® guidelines.NOTE: Ratings are subject to change at any time. Always refer to the AHRI directory ( for the most up-to-date ratings information.


Energy Efficiency

  • Up to 20.5 SEER / 15.5 EER
  • Microtube Technologyt refrigeration system
  • Indoor air quality accessories available


  • Sound level as low as 58 dBA in low speed


  • Variable speed scroll compressor with capacity range from 40-100%
  • Air cooled Inverter variable speed drive – System requires Infinity® wall control (SYSTXCCITC01-A, SYSTXCCITC01-B or newer)
  • Energy Tracking capability with the Infinity wall control w/software version 13 or later (Energy Tracking has the ability to monitor and estimate the energy consumption of your Infinity system.)


  • Non-ozone depleting Puronr refrigerant
  • Front-seating service valves
  • Infinity Intelligence monitors critical system parameters
  • High pressure switch
  • Suction pressure transducer
  • TXV for cooling
  • Filter drier (field installed)
  • Internal crankcase heater standard

Flexibility and installation:

  • 2 control wires to outdoor unit
  • Minimum and maximum airflow adjustments

WeatherArmor Ultra™ protection package:

  • Solid, Durable sheet metal construction
  • Steel louver coil guard
  • Baked-on, complete outer coverage, powder paint


  • Long-line – up to 250 feet (76.2 m) total equivalent length, up to 200 feet (60.96 m) condenser above evaporator, or up to 80 ft. (24.38 m) evaporator above condenser.

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