Lochinvar & A.O. Smith 100170643 Board 320788-704 The single cover design and

The single cover design and replaceable seats ensure streamlined field maintenance and testing without removing the assembly from the line

While calibrated for a 20 psig main air supply

It is the direct successor to the now-obsolete B1086748 and 60-9366-01 part numbers

the regulator vent must be piped to the atmosphere in accordance with local mechanical codes to ensure safety and proper industrial regulator performance

Key Benefits for Technical Installation Precise 10-11

Lochinvar & A.O. Smith 100170643 Board 320788-704 The single cover design andThe 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