Lochinvar & A.O. Smith 100187874 Gas Valve//Venturi Assembly 321702-401 this suction service valve is

this suction service valve is designed to handle the high-pressure requirements of modern R-410A refrigerants

this 3/4" inverted flare assembly is specifically engineered for retrofit applications

Common Questions Is the MARS 92340 a direct replacement for the Honeywell R8222 series

0 µA for most York boards—the sensor likely requires cleaning or replacement

This 120 Vac spring return actuator utilizes a reliable SPST control signal

Lochinvar & A.O. Smith 100187874 Gas Valve//Venturi Assembly 321702-401 this suction service valve isThe Lochinvar & A. O. Smith 100187874 Gas Valve Venturi Assembly is a critical OEM component designed for high efficiency natural gas condensing boilers and water heaters. As a veteran technician knows, maintaining the correct air gas stoichiometric ratio is essential for peak combustion performance. This assembly integrates a precision SIT gas control valve with a specifically calibrated venturi to ensure stable gas pressure regulation across varying