Heat Controller R68DD0014 Pressure Switch 322838-753 Always verify the lead end

Always verify the lead end or shaft end rotation of your motor before installation to prevent reversed airflow

The use of RTV or other sealants can interfere with the compression seal and potentially contaminate the refrigerant circuit

this component is essential for technicians performing seasonal maintenance or emergency repairs on compatible Carrier

leak-free connection for industrial and commercial combustion systems

Heat Controller R68DD0014 Pressure Switch 322838-753 Always verify the lead endThe Heat Controller R68DD0014 Pressure Switch is a critical safety and operational component designed for negative pressure monitoring in residential and light commercial HVAC systems. Calibrated to a precise . 2" WC (Water Column) set point, this diaphragm actuated switch ensures the draft inducer is venting combustion gases effectively before allowing the ignition sequence to proceed. Engineered for compatibility with Comfort Aire, Century, and