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Integrated 120V Control: Standard 120Vac operation facilitates seamless integration into existing control logic
ensuring durability in harsh environments like cooling towers
Standard industry practice dictates replacing the internal oil filter during any major HVAC system diagnostic or when oil analysis indicates high acid or metal counts
provided the body casting remains in good condition
Key Technical Benefits Universal Compatibility: Engineered as a precise HS4GF15A24 replacement for rapid field service
Lochinvar & A.O. Smith 100227399 Pressure Switch 320720-756 Integrated 120V Control: Standard 120VacThe 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
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