Lennox 15M20 Pressure Switch Els PW 17895 This brass pressure tap connector

This brass pressure tap connector functions as a high-performance hose fitting with a built-in captured sealing mechanism

Standardized Form Factor: Features a 3" probe insert depth for standard Lennox mounting brackets

a cracked pressure switch hose

What causes a spill switch to trip on a Weil McLain boiler

the fan motor failing to start without manual assistance

Lennox 15M20 Pressure Switch Els PW 17895 This brass pressure tap connectorThe Lennox 15M20 Pressure Switch is a critical safety component designed for precise draft proving in residential and commercial furnaces and rooftop units. This OEM Lennox 15M20 switch is a single pole, single throw (SPST) normally open configuration that closes when it detects a pressure fall of . 10"wc. Built with a 1 4" barb connection for easy hose attachment, this air proving switch ensures the combustion air inducer is pulling sufficient vacuum