always verify local code compliance for safety shutoff requirements

as well as standard round shafts up to 11/16"

Replacing a failing control module with this genuine HVAC control board restores the furnace sequence of operation

reducing nuisance service calls related to pilot outages or "no hot water" complaints

The THT2540 is an automatic reset switch

Lennox 10W85 Orifice Kit 322055-301 always verify local code complianceThe Lennox 10W85 is a critical RFC . 072 orifice kit engineered for precise refrigerant flow control in residential and light commercial DX systems. As a fixed metering device, this Lennox replacement part is essential for maintaining the specific pressure drop required to transition high pressure liquid refrigerant into a saturated vapor within the evaporator coil. Unlike adjustable expansion valves, the . 072 orifice size must be matched exactly to