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The HH18HA120 is typically an automatic reset switch that resets once the ambient temperature falls back within the 30F differential range
this SPST (Single Pole Single Throw) switch ensures the inducer motor is generating the exact negative pressure required to vent flue gases safely before the ignition sequence begins
eliminating the need for hub adjustments or pitch modifications during field repairs
ensuring the internal components remain protected from humidity and debris in demanding outdoor environments
Trane SWT2686 Limit Switch THPU32HP7Y The HH18HA120 is typically anWhen you are looking for a reliable Trane SWT2686 Limit Switch replacement, ensuring the correct thermal calibration is critical for system safety and furnace uptime. This OEM Trane heating part is a 125 155F AUTO limit switch, specifically engineered to act as a primary safety control by monitoring discharge air or internal plenum temperatures. It features a precise 125 degree opening temperature and resets automatically at 155 degrees, preventing
US$ 99.99
US$ 477.50