Resideo RA889A1001 Switching Relay 323269-701 Universal Compatibility: Serves as a

Universal Compatibility: Serves as a drop-in replacement for part number S1-8865-3611

Do I need to drain the system to install this part

Its rotary mechanical movement is optimized for SmartX VBB/VBS valve bodies

Operating as a standalone unit or within TekmarNet 2 (tN2) and tN2/tN4 communication bus systems

Rotation is easily reversed by following the color-coded jumper instructions on the motor label

Resideo RA889A1001 Switching Relay 323269-701 Universal Compatibility: Serves as aThe Resideo RA889A1001 Switching Relay is a heavy duty solution for intermediate switching of line and low voltage devices in hydronic heating systems. Engineered for 120Vac primary voltage, this relay features a Single Pole Double Throw (SPDT) configuration paired with a PowerPile rated low voltage SPST relay, making it ideal for converting millivolt systems to modern 24V control. The integrated transformer secondary rating of 24Vac provides 9 VA for