You must follow the flow arrow on the label to ensure the spring-loaded desiccant bed and filtration media function correctly

ensuring the system safely shuts down if it detects a flue blockage or backdraft

Common Questions Is the HS3GN15A24 compatible with older S3 series valve bodies

Perform a continuity test across the terminals when the unit is cool

Lennox 13W87 Run Capacitor You must follow the flowThe Lennox 13W87 Run Capacitor is a high spec 50 7. 5 MFD 440V dual rated component engineered for demanding condenser applications. As a veteran preferred Lennox OEM replacement part, this round dual run capacitor provides the critical phase shift required to stabilize compressor start up and maintain efficient condenser fan motor RPMs. Rated for 440VAC, it is backward compatible with 370V systems, offering superior dielectric strength and thermal