This is a Goodman 4 load heat pump in best running condition. This unit uses R-22 freon and prepares to be installed. I gave a client a trade in discount on this device. it was skillfully uninstalled. I can likewise install it for an extra fee. i have been in the HVAC field for 12 years. , if interested happy call Jerry.. THANK YOU ... severe queries just. Please leave a message if no response.