Lochinvar & A.O. Smith 100170643 Board 318973-401 Key Benefits True Differential Pressure

Key Benefits True Differential Pressure Measurement: Single-diaphragm design eliminates calculations and potential errors associated with line pressure fluctuations

As a direct successor to legacy part numbers HH79NZ016 and HH79NZ014

For technicians performing a direct replacement

The Robertshaw 710-511 is rated for 70

Durable Construction: Features an iron body and stainless steel spring for long-term performance in hydronic environments

Lochinvar & A.O. Smith 100170643 Board 318973-401 Key Benefits True Differential PressureThe Lochinvar & A. O. Smith 100170643 Thermostat Control Board is a critical OEM replacement part engineered for high efficiency CB 045 260 hydronic boilers. As a dual stage integrated boiler control, this module manages complex heating cycles by monitoring real time system activity and adjusting firing rates to meet precise demand. It features a broad max setpoint range of 150F to 200F and a reliable min setpoint range of 110F to 140F, ensuring