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Thermostat wiring I am installing a bryant 604 heat pump and am not sure how to hook up thermostat. Thermostat literature shows jumper across y and w. If so, what do you do with wht wire out of unit?

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W is normally for heating and Y is normally for cooling. You must be misreading the literature. If Y and W are jumpered you would have heat and cool at the same time. R terminal is normally the power to the thermostat, Y is to the cooling at the heat pump A/C terminal board. G is for the indoor fan operation at the air handler or furnace. W is for heating and with a heat pump you may have a w2 terminal. W1 would be for the first stage or primary heat. W2 would be for the secondary or backup heat be it furnace or electric.

Posted on Jun 17, 2008

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