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The SOURCE 1 Air Pressure Switch S1-02439706000, from the YORK brand, monitors air pressure within HVAC systems. It activates when the pressure drops to 0.10 inches of water column (IWC) utilizing a single pole normally open (SPNO) configuration.
This air pressure switch is essential for maintaining system safety, activating circuits based on air pressure levels.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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