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The Weil-Mclain 389-900-200 is a WMR-21 DPSI relay zone control. This unit is designed for use in HVAC systems to manage heating zones efficiently. It is suitable for residential and commercial applications, ensuring optimal temperature control. The relay provides reliable performance and easy installation, making it a vital component for zone control setups.
This relay zone control is essential for effective zone heating, enabling efficient energy use in larger spaces.
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