Lochinvar & A.O. Smith 100277755 Pressure Switch 321142-301 eliminating the need for complex

eliminating the need for complex field balancing or alignment

For 750mV thermopile systems

hydrofluoric acid

Using it with R-410A will result in incorrect metering due to different pressure-temperature relationships

Optimized Airflow: Precision 12x9 blower wheel design maximizes CFM output for consistent climate control

Lochinvar & A.O. Smith 100277755 Pressure Switch 321142-301 eliminating the need for complexThe Lochinvar & A. O. Smith 100277755 Pressure Switch is a mission critical component engineered for precise atmospheric monitoring in high efficiency boilers and water heaters. Calibrated to a . 95" WC (Water Column) set point, this OEM replacement pressure switch ensures the inducer fan is generating the correct static pressure before allowing the ignition sequence to proceed. As a veteran grade HVAC induction switch, it is designed to prevent