Aprilaire 50 Relay R-448A this externally equalized thermal expansion

this externally equalized thermal expansion valve (TXV) effectively compensates for pressure drops across the evaporator

making it suitable for high-pressure industrial burners

OEM Compatibility: Seamlessly replaces Nordyne part numbers 632372 and 632424 without requiring field modifications

By utilizing this genuine Lochinvar replacement part

Key Benefits Dual-Media Versatility: Specifically designed to handle both low-pressure steam and high-temperature hot water with a single valve configuration

Aprilaire 50 Relay R-448A this externally equalized thermal expansionOptimize your home climate control system with the Aprilaire 50 Relay, a high performance current sensing relay designed specifically for 24V HVAC applications. This essential component ensures your whole house humidifier operates only when the furnace blower is active, preventing wasted water and protecting sensitive electronics from electrical feedback. By detecting the furnace blower motor current, the Aprilaire 50 automates the humidification