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‘Fan’ connects to the condenser fan motor
When replacing older Penn P70 series units
this harness maintains system integrity and performance
5" WC trip points for system safety
Lennox 29W64 Switch 321042-401 ‘Fan’ connects to the condenserThe Lennox 29W64 Pressure Switch is a critical safety component designed for two stage gas furnaces, engineered to monitor pressure differentials within the inducer system. This SPST (Single Pole Single Throw), normally open switch is calibrated to trip at 0. 90 1. 30" WC, ensuring precise venting and combustion safety protocols are met before the ignition sequence proceeds. Built to withstand high cycle operations in residential HVAC environments,
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