While some legacy documentation mentions

making it ideal for HVACR ignition systems

The kit includes the necessary oil pump gasket and specialized adapter rings required for proper seating against the compressor bearing housing

OEM Precision: Guaranteed fit for Lochinvar and A

it delivers a nominal liquid capacity of 17 tons for R-22 and 12

Lennox 25W25 Expansion Valve 320720-756 While some legacy documentation mentionsThe Lennox 25W25 Expansion Valve (OEM part 100679 04) is a high precision thermostatic expansion valve (TXV) engineered for R22 refrigerant systems with a cooling capacity of up to 3 tons. As a critical metering device, it manages the transition of refrigerant from the high pressure liquid line into the evaporator coil by precisely adjusting flow based on heat load. This HVAC expansion valve ensures the evaporator operates at peak efficiency,