Installed a new air conditioning system for a customer. Removed the old system, replaced the air handler deck and added support, installed the air handler, float switch, heater, and thermostat, tied the air handler to the existing ductwork, installed hurricane pad, installed a new heat pump condenser, and installed a surge protector with high/low voltage protection. Purged the lines with nitrogen, pressure tested them, opened the isolation valves, started the system, and checked its operation, working according to manufactures specs. Replaced the breaker for the condenser unit. I delivered the paperwork.