FAST-STAT Model 7000 HVAC Wire Extender (Air Conditioner to Heat Pump Conversions)
The Model 7000 extends the wiring between a heat pump, indoor unit, and thermostat. A three part kit that operates a single or two-stage heat pump over a 2-wire condenser cable and 4-wire thermostat cable. Has a built-in optional fossil fuel/supplemental heat controller.