The Model 7000 extends the wiring between a heat pump, indoor unit, and thermostat when upgrading from an air conditioner. Provides R, C, G, Y1, Y2, W, and O/B over the 4-wire thermostat cable, and Y1, Y2, O/B, and W over the 2-wire condenser cable. If the thermostat cable does not require more wires, a Model 9000 can be used to extend only the wiring from the indoor unit to heat pump.
