Lochinvar & A.O. Smith 100170490 Gas Valve 321702-401 The module selection logic is

The module selection logic is determined by the internal diaphragm orientation and port connections

this regulator is rated for a 25 Psig maximum supply

and 125 MBH configurations

this 1 HP compressor delivers a nominal cooling capacity of 6680 BTU/hr when utilized with R404A refrigerant

Observe the discharge

Lochinvar & A.O. Smith 100170490 Gas Valve 321702-401 The module selection logic isThe Lochinvar & A. O. Smith 100170490 Gas Valve is a critical OEM replacement part designed for high efficiency hydronic systems. As an essential component for natural gas combustion control, this valve regulates fuel delivery to the burner assembly with high precision, ensuring the manifold pressure remains within manufacturer specified tolerances. Built for the rigorous demands of commercial and residential boilers, the 100170490 is engineered to