Armstrong Fluid Technology 880202-677K Seal Kit 340155-7024 since the relay board manages

since the relay board manages the electrical path to the fan motor

This is critical for systems with multiple accessories or high-current contactor coils

While primarily designed for piston extraction and installation

5-ton thermostatic expansion valve designed specifically for R22 systems requiring precise refrigerant metering

Armstrong Fluid Technology 880202-677K Seal Kit 340155-7024 since the relay board managesThe Armstrong Fluid Technology 880202 677K Seal Kit is a precision engineered mechanical seal replacement designed specifically for the E2 Series circulator pumps. This comprehensive kit ensures a leak free environment by utilizing high grade EPDM gaskets and a durable rotating seal assembly. As an essential HVAC pump repair kit, it addresses common points of failure in hydronic heating and cooling systems, restoring hydraulic integrity and preventing