Nordyne 632547R Pressure Switch -0.90" WC SPST

The Nordyne 632547R Pressure Switch for accurate monitoring and control of airflow in HVAC systems. An SPST pressure switch that opens or closes electrical circuits based on its setting is what it is. It is designed to trigger at -0.90" WC hence fulfilling the needs of precisely controlled air draft applications. This pressure switch serves as the main component for any furnace or cooling or heating system not forgetting static pressure measurements within duct work, which ensuring proper flow rates. Whenever the pressure varies beyond the set points either way, the switch regulates other sections of the system to maintain operational efficiency.