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When performing a boiler pressure relief valve replacement
making it essential for maintaining correct refrigerant or air pressure levels within the system
and pet dander down to 0
as this switch is engineered to precise manufacturer tolerances for blocked inlet detection
Lennox 18H01 Limit Switch 321894-709 When performing a boiler pressureThe Lennox 18H01 Limit Switch is a high precision OEM replacement part engineered for critical thermal protection in heating and air conditioning systems. This specific L140 40F limit control is designed to monitor internal temperatures with an auto reset function, automatically breaking the electrical circuit if temperatures exceed the 140F threshold and restoring operation once conditions drop to 100F. Built with a rugged housing to withstand the