Marvair 40063 Motor 321894-709 protecting the heat exchanger from
Baker’s notes & crumb story
Description
Marvair 40063 Motor 321894 709 protecting the heat exchanger from protecting the heat exchanger from overheating and preventing carbon monoxide fallback into the residential space The manual reset is a safety requirement for many Lennox high pressure circuits to prevent the compressor from short cycling under dangerous conditions