Lennox 24W49 Pressure Switch 326010-701 when connecting double-wall pipe directly

when connecting double-wall pipe directly to the drafthood outlet

and 157 series models

the DFS-221-199 features SPDT (Single-Pole Double-Throw) snap-acting contacts rated for 15 Amps at 277 VAC

Serviceability: The replaceable cartridge design allows for easy orifice resizing or cleaning without removing the valve body from the line

this switch is rated for 24V applications as well as line voltage up to 240V

Lennox 24W49 Pressure Switch 326010-701 when connecting double-wall pipe directlyThe Lennox 24W49 Pressure Switch is a critical safety component designed for specific Lennox furnace models to monitor the induced draft blower operation. This OEM Lennox replacement part, identified by part number 101021 04, is factory calibrated with a set point of 0. 70" WC PF 1. 05" WC. It ensures the combustion process is vented correctly before allowing the gas valve to energize. Built with a durable diaphragm and precise electrical contacts,