Resideo HPZC105 Controller 322838-753 When replacing a Knight boiler

When replacing a Knight boiler fan assembly

This Shaded Pole motor is built for continuous duty

Simplified Scaling: Allows for the addition of up to nine modules per communication link to meet complex site requirements

With an outside diameter (OD) of 5

the 4501 series typically features a removable ring

Resideo HPZC105 Controller 322838-753 When replacing a Knight boilerThe Resideo HPZC105 Five Zone Valve Controller is an industry standard hydronic zoning panel designed for precise multi zone hydronic heating management. As a direct Honeywell HPZC105 replacement, this 120V hydronic control manages up to five independent zones using 24V zone valves and a central boiler. Its specialized Priority Zone Control ensures that critical domestic hot water (DHW) calls are met before standard heating loops, optimizing recovery