Lochinvar & A.O. Smith 100275508 Board 30067439-890 or Payne rooftop unit or

or Payne rooftop unit or air handler

Heavy-Duty Construction: Engineered to withstand high-temperature flue environments for long-term service life

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

13% full-scale accuracy

Lochinvar & A.O. Smith 100275508 Board 30067439-890 or Payne rooftop unit orWhen 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