Lochinvar & A.O. Smith 100288430 Switch 320074-702 specifically protecting the jacket assembly

specifically protecting the jacket assembly and internal components from overheating

making it suitable for chilled water

Precision Refrigerant Shifting: Ensures smooth transition between modes by accurately directing high-pressure gas to either the indoor or outdoor coil

High Compatibility: Designed for use with R-410A

Lochinvar & A.O. Smith 100288430 Switch 320074-702 specifically protecting the jacket assemblyThe Lochinvar & A. O. Smith 100288430 Low Air Pressure Switch is a critical safety component designed for high efficiency condensing boilers and water heaters. As a veteran technician knows, this normally open switch is calibrated to a precise 0. 75" water column (W. C.) set point. It serves as the primary "proof of airflow" for the inducer motor, ensuring that the combustion blower is creating sufficient negative pressure to safely evacuate flue