American Standard Thermostat Asystat 606 Wiring Diagrams. Take control of the comfort levels in your home with an American Standard thermostat control. The orange wire only applies to homeowners with an air-source heat pump.
It is a red wire and comes from the transformer usually located in the air handler for split systems but you may find the transformer in the condensing unit. Its usually black but in some cases its the thermostat blue wire. The orange thermostat wire links to your heat pump if you have one.
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How about a fully-automated control. Thermostat American Standard ASYSTAT 340 Owners Manual. Converting from an American Standard thermostat ASYstat 606to Hunter model 44905. Take control of the comfort levels in your home with an American Standard thermostat control.