This system is meant to be installed by a HVAC technician. The newly designed 3rd generation Advantage Series, with improved efficiency ratings up to 19 SEER, delivers high performance comfort from the moment it's activated. The condenser incorporates a high performance compressor with eco-friendly, chlorine-free R-410A refrigerant. The MRCOOL Advantage now includes the new SmartHVAC WiFi control module that features an easier setup process, improved functionality, and works with Amazon Alexa and Google Assistant.