Lennox 24W51 Pressure Switch Freon Always verify that system expansion

Always verify that system expansion valves and seals are compatible with the lubricant before installation

Streamlined Installation: Comprehensive kit contents allow for complete internal overhauls without replacing the entire valve body

Zerol 200TD is preferred by Copeland for field service due to its specialized additive package

supporting both clockwise and counter-clockwise requirements

Lennox 24W51 Pressure Switch Freon Always verify that system expansionThe Lennox 24W51 Pressure Switch is a critical safety component designed for two stage high efficiency gas furnaces. This dual stage pressure switch is calibrated to monitor combustion air blower performance, ensuring the system operates within specific Inches Water Column (WC) parameters. Featuring set points of . 65" WC and 1. 15" WC, this assembly prevents unsafe ignition by verifying that the inducer motor is moving sufficient air to clear flue