Dave Lennox Signature Collection XC21
This is a two-stage cooling system featuring a SEER of 21, ENERGY STAR certification, and SilentComfort technology 30, 31.
SilentComfort technology 38, Humiditrol compatibility 39, iComfort smart thermostat compatibility 39.
Efficiency: 21 SEER 40. Compressor: Two-stage 40. Sound: 69 dB 40. Certification: ENERGY STAR 40.

