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This control serves as the direct replacement for 239-45613-02
including popular series like the P125
Can I use an aftermarket L220F switch instead of the 49K71
By integrating advanced variable speed motor control
Resideo HPSR104 Switching Relay 322838-754 This control serves as theThe Resideo HPSR104 is a robust four zone switching relay designed for professional hydronic applications. This 120V pump zoning panel provides precise control for up to four circulator pumps, integrating a dedicated priority zone for domestic hot water (DHW) calls. Engineered for versatility, it is fully compatible with most thermostats, including power stealing, electromechanical, and modern smart thermostats like the T6 Pro. Each thermostat