If your furnace blower runs continuously while the burners stay off

000 BTU/hr (CSA rated) and features a standard 75 PSI pressure relief setting with a 210°F maximum temperature threshold

Ensure the piping is properly supported to handle the weight of the tank when at full acceptance volume

Field-proven for reliability

Engineered for precision and thermal management

Weil McLain 510-811-502 Control Module Refrigerant If your furnace blower runsIntegrating a genuine Weil McLain 510 811 502 Control Module is the standard protocol for maintaining the combustion integrity of HE, HE II, and VHE series boilers. This ignition sensing control module operates on a 24 volt circuit and is engineered to manage the pilot ignition sequence with precision. As a Weil McLain replacement part, it features a critical safety lockout mechanism that triggers after three unsuccessful ignition trials, preventing