Lochinvar & A.O. Smith 100275508 Board 30067439-890 provided the valve body is

provided the valve body is configured for the clip-on coil attachment system

technicians must verify the 1" pipe size and the absence of an internal regulator to maintain correct manifold pressure

or Payne rooftop unit or air handler

the B1370772SP is the direct OEM replacement for the B1370772 and is built to the same form and function standards

so the system does not need to be drained for actuator-only repairs

Lochinvar & A.O. Smith 100275508 Board 30067439-890 provided the valve body isWhen you're out in the field and a boiler stops firing due to a communication error, you need the reliable Lochinvar & A. O. Smith 100275508 NKC150 Main Board to restore full system logic. This OEM Lochinvar replacement part is the primary HVAC control module designed to manage the high efficiency performance of NKC150N and NKC150P heating systems. By integrating advanced SMART SYSTEM boiler control circuitry, this board processes inputs from sensors