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Product Features: 24V Low Water Cut-Off operation optimized for residential gas-fired and oil-fired systems
and Nordyne gas furnaces and electric air handlers
it requires a minimum pressure differential of 5 PSI to open and function correctly
For peak HVAC performance
Engineered to open at a fixed temperature of 260F
Lochinvar & A.O. Smith 100208393 Pressure Switch 326058-758 Product Features: 24V Low WaterWhen you are troubleshooting a no heat call on a Lochinvar or A. O. Smith high efficiency unit, the Lochinvar & A. O. Smith 100208393 Pressure Switch is often the gatekeeper for the combustion sequence. This OEM air pressure switch is calibrated to a specific set point of 6. 20" WC, ensuring that the induced draft blower is moving enough air to support safe combustion before the gas valve is energized. As an HVAC air pressure switch replacement, this