Pay in 4 interest-free payments of $14.52 Learn more
Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
Direct Modular Replacement: Specifically tailored for 25 Series Main Valves
013 orifice (part number 660922) pre-installed
The Emerson Alco 049638
protecting sensitive pneumatic thermostats and valves
Reliable Communication: Utilizes standard 18-20 AWG thermostat wiring for the ABCD bus
Lennox 14A53 Pressure Switch L99H008 Direct Modular Replacement: Specifically tailoredThe Lennox 14A53 Pressure Switch is a critical safety component designed for two stage gas furnaces, specifically engineered to monitor dual pressure thresholds of . 40" WC and . 70" WC. As a vital furnace draft inducer switch, it ensures the combustion blower is moving sufficient air to clear flue gases before ignition occurs. This dual stage pressure switch prevents hazardous operation by opening the electrical circuit if the static pressure falls
