Heat Controller R68DD0014 Pressure Switch 320734-701 preventing the initial "cold blast"

preventing the initial "cold blast" of air

Enhanced Durability: Features a high-grade cast iron ASTM A126 Class B body and bronze interior sets to resist wear in water-glycol solutions up to 50%

Advanced EMI/RFI Shielding: Built-in suppression meets strict noise emission standards to protect nearby electronics and primary controls

and Payne inducer assemblies

Heat Controller R68DD0014 Pressure Switch 320734-701 preventing the initial "cold blast"The 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