Fail-Safe Logic: The 9-13 PSI spring return ensures the valve defaults to the normally open position upon loss of control air

Is this cover compatible with the S7800A1140

When diagnosing Lennox furnace pressure switch problems

ensuring proper static pressure and venting

What causes a reversing valve to get stuck in one mode

Lennox 44W52 Collector Box 326058-756 Fail-Safe Logic: The 9-13 PSIThe Lennox 44W52 Collector Box (also identified by part number 102107 01) is an essential OEM component for high efficiency gas furnaces. Located at the secondary heat exchanger outlet, this collector box is engineered to manage the disposal of acidic furnace condensate and combustion byproducts. By facilitating proper condensate drainage, the 44W52 protects the internal furnace heat exchanger from moisture induced corrosion and premature failure.