The pleated charcoal media provides a high surface-area-to-volume ratio

Built with a 42Y Nema frame size

Simplified Wiring: Features a single pole

Does this pilot require a bleed port

technicians should replace these components at the start of every heating season

Lennox 24W49 Pressure Switch 318973-401 The pleated charcoal media providesThe 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,