Nordyne 632477R SPST Pressure Switch -0.70" WC

The Nordyne 632477R Pressure Switch is a critical component of HVAC systems, designed to monitor and control airflow pressure. This is a single pole single throw switch that turns on/off the device when certain pressures are reached. Normally, if the pressure goes below a defined level of -0.70" water column, the switch opens and shows a probable airflow deficit. Also, gas furnaces and boilers make heavy use of 632477R where there must be enough air for it to work optimally and safely. This switch ensures that the HVAC system operates correctly by monitoring the correct levels of pressure thereby providing protection for it.