The Goodman Furnace Integration Kit supports systems with either a furnace, indoor coil, and outdoor air conditioner/heat pump, or a modular blower, indoor coil, and outdoor unit. If you are replacing the indoor coil or outdoor unit, both must be upgraded to R-32 models. The existing furnace or modular blower can remain. This kit uses the controls of the existing furnace or blower to handle the necessary adjustments for R-32 refrigerant systems. Package includes: IO Manual PCB case containing the dragonfly pcb Connector Pin 1 Connector Pin 2 Connector Pin 3 Mounting hardware (screws) Mounting hardware (wall anchors) Canada Wide Free Shipping!