XC21 Lennox AC Unit

XC21 Air Conditioning Unit


The Lennox XC21 Air Conditioner and the XP21 Heat Pump are part of the Dave Lennox Signature Collection, meaning they are the most efficient and quietest systems in their class.
The XC21 is a 2-Stage system, meaning that it can operate as two different "sizes". On those more mild days of our Northern California summers, this unit can turn on at about 60% of its overall capacity, or as a small air conditioner, however when the temperatures climb to the more extreme levels, the XC21 is able to ramp up to 100% of its capacity.
When Enviornmentall Heating and Air Solutions designs your new comfort system, we do so based on the hottest days of the year to keep you cool and comfortable. When the temperatures are not that hot, a single stage air conditioner will be "over-sized", which can cause inefficient operation as well as magnifies uneven temperature control form room to room in your home.
With the Lennox XC21 2-Stage air conditioner, the system will operate more in-line with what you need, based on the outdoor temperature and the indoor thermostat set point. This provides higher efficiency and better temperature control.
The Lennox Signature Series XC21 and XP25 will also provide:
  • Ultra Quiet Operation
  • Enhanced Dehumidification 
  • Wi-FI Enabled Control with on-board diagnostic system
  • Enhanced air filtration, due to longer run cycles and a lower level
  • And many other operational enhancements.
2-Stage operation is a minimum requirement for systems that have or will ever have zoning added in the future. 

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