This panel is designed to work with Weil-McLain ECO boilers. The primary piping matches up to the ECO boiler system supply and return.
The panel has three or four Grundfos UPS15-58 pumps. There is a primary pump, a DHW pump and one heating pump. The primary and DHW pumps are controlled by the boiler. The heating pump is controlled by a thermostat (supplied separately) wired to the boiler. The water temperature is controlled by the boiler.
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