American Standard Heat Pump Wiring Diagram. Ask question asked 4 years, 1 month ago. Do not connect wires to w terminal at thermostat and
Wiring routing must be properly arranged so that control. I don't do residential work but a friend of mine bought a used am std heatpump.he asked me to do the control wiring hookup.there are no wiring diagrams that aren't badly faded and this unit uses wire nuts no terminal strips. Read suction line temperature 3.