Watts 0559105 Valve 319847-401 This genuine OEM water heater

This genuine OEM water heater part features a robust metal body construction and an internal microprocessor designed for fast response times and accurate temperature regulation

This genuine Trane replacement part provides the precise tolerances required for R410A and R22 cycles

The integrated 1/4" SAE Schrader access port simplifies diagnostics and charging

This 120V HSI replacement is a critical component for maintaining consistent ignition cycles

Pin configurations and terminal layouts are identical

Watts 0559105 Valve 319847-401 This genuine OEM water heaterThe Watts 0559105 (Model LF1170 M2 US) is a high performance 1 inch thermostatic mixing valve engineered for precision temperature regulation in domestic hot water systems and radiant heating applications. Featuring a lead free cast copper silicon alloy body, this valve utilizes a solid wax hydraulic principle thermostat to maintain consistent discharge temperatures despite fluctuations in supply pressure or temperature. The double throttling design