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Communicating Outdoor Interface Board for iQ Drive Heat Pump

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The Interface Board controls combine functions needed for establishing a communications and control link from a communicating thermostat to compatible heat pump equipment onto a single printed circuit board assembly. The controls provide three-wire communication links to other elements on a communicating bus, 24VAC input/output terminals, four 24VAC relay outputs, status LED’s, and a Coil Thermistor input.