If the link is open (infinite resistance)

allowing you to manage twice the amount of circuit paths compared to a standard DPDT model within a single housing

ÇÖs specific K-factor (3200 for the SSS-1004) multiplied by the square root of the differential pressure measured across the ports

this SPDT NO/NC relay is a standard component for many Intertherm and Miller furnaces

This orifice is factory-drilled to 1

Lochinvar & A.O. Smith 100233489 Ventilation Fan 30067439-890 If the link is openThe Lochinvar & A. O. Smith 100233489 Ventilation Fan is a critical OEM replacement component designed for high efficiency boiler and water heater combustion systems. This axial fan assembly, also identified by part numbers FAN2027 and FAN2027K, operates on 115VAC power at 50 60Hz. As a veteran grade ventilation fan replacement, it facilitates the precise movement of air into the combustion chamber while ensuring the safe extraction of flue gases.