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Is this the correct replacement for a normally open valve
a configuration with EPDM or Viton seals may be required to withstand thermal stress
This access door is essential for regular furnace maintenance
using a universal alternative can lead to improper component spacing and increased noise levels
Lennox 80K80 Pressure Switch 326010-701 Is this the correct replacementThe Lennox 80K80 pressure switch is a critical safety component designed for specific Lennox furnace models to ensure proper inducer motor performance and venting integrity. This SPST furnace pressure switch features a . 65" WC set point, calibrated to monitor the negative pressure generated by the combustion blower. Engineered with a 1 4" barb connection, it provides a secure fit for standard vacuum tubing, preventing air leaks that can lead to