Lochinvar & A.O. Smith 100093721 Valve 323080-701 When diagnosing a system that

When diagnosing a system that hums but fails to engage the compressor

including GRA

this switching relay allows a standard 2-wire thermostat to drive heavy-duty components like circulator pumps

and WeatherKing air conditioners and heat pumps

The HC charge is specifically calibrated for R22 refrigerant

Lochinvar & A.O. Smith 100093721 Valve 323080-701 When diagnosing a system thatThe Lochinvar & A. O. Smith 100093721 Valve is a 3. 5" natural gas control valve engineered for precision fuel regulation in high efficiency commercial boilers and water heaters. Designed to meet the demands of condensing heating systems, this direct replacement gas valve ensures accurate manifold pressure and consistent ignition cycles. As a critical OEM HVACR component, it works in tandem with the blower assembly to maintain the correct air to fuel