The HSX19 air conditioner has an efficiency rating of up to 19.2 SEER. Within the air conditioning unit is a two-stage scroll compressor. The Lennox System Operation Monitor, an onboard diagnostics ...
The PowerSaver® HS21 air conditioner and HP21 heat pump have two-speed operation. Part of the new Dave Lennox Signature™ collection, the HS21 offers SEERs ranging from 11.40 to 15.75, while the HP21 ...
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