4 heads inside total and 2 outdoor units. All line set covers included. upon arriving on the first day, went meet and greet with customer go over work for the day start setting up getting tools, drop cloths mini split heads inside rooms where they’re going to start. Corn hole drilling through concrete walls for each mini split head run line hide from starter cap to condenser. Everything is sealed insulated Pressure test mini split line set 400 psi vacuum down to 500 µm start up check and cool and heat modes. Everything is draining and cooling to factory specs job is complete pictures taken of all work completed. Customer is happy. Customer said electrician will be coming back. He will need to change existing breaker from existing AC to a 20 amp and put conduit on high-voltage outside at three and four unit condenser job is complete.