Is the Lennox 21L98 compatible with the 21L9801

or if there is visible evidence of soot

this high limit temperature switch monitors plenum temperatures and provides a fail-safe against overheating

the 20°F differential is fixed

Emerson Alco 060252 Filter Drier Els PW 17895 Is the Lennox 21L98 compatibleThe Emerson Alco 060252, also identified as model SFD 27S9 VV, is a high capacity suction line filter drier engineered for field replacement or new system installation. Featuring a 1 1 8" ODF sweat connection and a 27 cubic inch desiccant volume, this unit provides critical protection for the compressor by removing solid contaminants and moisture from the refrigerant stream. Its 40 micron filtration rating ensures that fine debris, such as carbon