Lochinvar & A.O. Smith 100227399 Pressure Switch 320720-756 Direct Interchangeability: Serves as the

Direct Interchangeability: Serves as the official 20197314 replacement for the legacy HAPS27 model

provided the body casting remains in good condition

ensuring durability in harsh environments like cooling towers

The terminal designations (1

Key Technical Benefits Universal Compatibility: Engineered as a precise HS4GF15A24 replacement for rapid field service

Lochinvar & A.O. Smith 100227399 Pressure Switch 320720-756 Direct Interchangeability: Serves as theThe Lochinvar & A. O. Smith 100227399 Pressure Switch is a critical safety component engineered for precise combustion air pressure sensing in high efficiency boilers and water heaters. As a normally closed (N. C.) pressure switch factory set to 2. 12" WC (Water Column), this OEM replacement part ensures the inducer motor is moving sufficient air for safe ignition and sustained burner operation. When troubleshooting a pressure switch stuck closed or