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Built with a Single-Pole Single-Throw (SPST) configuration
this assembly is critical for maintaining efficient combustion and preventing nuisance flame failures
ensuring a functional neutralizer kit is vital for protecting the client's infrastructure
failure-prone clear pans found in many 33-inch high-efficiency furnaces
Reznor 122990 Limit 318518-761 Built with a Single-Pole Single-ThrowFor service technicians and commercial contractors, the Reznor 122990 Manual Reset Limit Switch is a critical OEM safety component designed for heavy duty gas fired unit heaters. Engineered to open at 180F, this high limit control acts as a fail safe against heat exchanger overheating. Unlike automatic switches, the manual reset design requires a physical inspection of the system before resuming operation, ensuring that common failure pointssuch as
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