Professionals utilizing this Lennox 69W42 replacement part benefit from a 15A at 120VAC electrical rating and a high-durability SPDT contact configuration

Rugged Construction: Designed for an ambient temperature range of -22°F to 122°F

The Lennox 71L20 Wiring Harness is a critical OEM replacement component designed specifically for direct-connection between the HVAC furnace control board and the gas valve assembly

ensuring it can withstand a pressure range up to 350 PSI and a temperature range of -20°F to 130°F

Heil Quaker ICP Z06G001 Switch 322027-701 Professionals utilizing this Lennox 69W42The Heil Quaker ICP Z06G001 Block Vent Switch is a critical safety component engineered for oil fired heating appliances and high efficiency furnace systems. Designed as a Blocked Vent Shutoff Switch (BVSO), this genuine OEM part monitors the exhaust flue for restricted airflow or backdraft conditions. If the venting system becomes obstructed by debris, ice, or seasonal nests, the Z06G001 switch detects the resulting pressure or temperature change to