I just finished installing a state-of-the-art Lennox heat pump system for a homeowner. I carefully sized the 4-ton outdoor condenser unit and paired it with a high-efficiency air handler to provide both heating and cooling for the home. I integrated the new equipment with the existing ductwork and made all necessary electrical and refrigerant line connections. After a comprehensive startup and testing procedure, I programmed the Wi-Fi enabled thermostat and ensured the system is operating at peak performance. The homeowner now has a versatile, energy-efficient HVAC solution for year-round comfort.