The Lennox SL280UHNVK series comprises 80% efficiency gas furnaces designed for upflow or horizontal installations. These units feature heat exchangers constructed from aluminized steel tubes, offering heating capacities from 40,000 to 100,000 Btuh and cooling capabilities up to 5 tons. They are approved for installations at altitudes up to 4500 ft.
Key technological highlights include the Lennox® Communicating SureLight® two-stage variable speed integrated control. The SL280UHNVK models comply with California Nitrogen Oxides (NOx) Standards and California Seasonal Efficiency requirements, and all units utilize a redundant gas valve for enhanced safety, adhering to C.S.A. standards.
Service Literature Overview
This document provides essential service literature for the SL280UHNVK series gas furnaces. It details comprehensive specifications, installation guidelines, operating characteristics, maintenance procedures, and troubleshooting information. Installation and service must be performed by licensed professional HVAC installers or equivalent service agencies.
Please note that all specifications are subject to change. The procedures presented are recommendations and do not override local or state codes.
AHRI
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