Lochinvar & A.O. Smith 100166697 Venter Assembly 318172-701 ensuring the HVAC expansion device

ensuring the HVAC expansion device performs under high-demand commercial HVAC maintenance cycles without hunting or premature failure

The "20CI" refers to a 20 PSI Cut-In (close)

verifying the 42 frame diameter (5 inches) is essential to avoid fitment issues common with larger 48-frame alternatives

What are the signs of a failing solenoid valve

offering the mechanical advantage needed for precise smoke damper positioning without the heat-related failure risks of non-metallic alternatives

Lochinvar & A.O. Smith 100166697 Venter Assembly 318172-701 ensuring the HVAC expansion deviceThe Lochinvar & A. O. Smith 100166697 Venter Assembly is a critical OEM replacement part designed for high efficiency commercial and residential water heaters and boilers. As a universal venter assembly, this unit directly replaces legacy part numbers including PVT1012, ensuring seamless integration with existing exhaust systems. It features a high performance draft inducer motor designed to handle the precise venting requirements of forced draft