This specific model is calibrated for R-22

Contractors often utilize this Fenwal replacement wire harness for field repairs or new installations where precise routing and secure terminal seating are non-negotiable

The McDonnell & Miller 314100 Valve Gasket is a critical sealing component engineered for high-performance boiler water feeders and low water cut-off systems

While the actuator itself can be removed by loosening the set screw

Optimized Pitch: The 29-degree blade angle maximizes heat dissipation without overloading the fan motor

Weil McLain 510-811-655 Valve Kit R-410A This specific model is calibratedThe Weil McLain 510 811 655 Valve Kit is a field proven combination gas control valve engineered for step opening ignition sequences in high efficiency hydronic systems. This 1 2" x 1 2" NPT natural gas valve provides precise pressure regulation, operating from a 0. 9" W. C. low fire setting up to a 3. 5" W. C. high fire output. Designed for compatibility with various Weil McLain boiler parts, this replacement gas valve ensures stable manifold