it functions as the central boiler controller

The solid-state timer allows for granular control over discharge intervals and open valve orifice duration

Using a Lennox replacement pilot orifice restores the factory-specified flow rate that cleaning often cannot achieve

Precise OEM Fitment: Serves as an exact replacement for HC98ZZ480 and 72502DP26

Browning B173 Belt 321894-706 it functions as the centralThe Browning B173 Belt is a heavy duty, classical B section power transmission belt engineered for high demand HVACR and industrial drive systems. Featuring a 176 inch outside diameter (173 inch inside length), this Super Gripbelt utilizes a wrapped construction that provides superior resistance to dirt, oil, and heat, ensuring stable performance in mechanical rooms and rooftop units. Its single fabric design increases flexibility, allowing the belt