1. Select an ideal wall location for the indoor unit, ensuring good airflow and easy access to electrical and drainage connections. Securely install a mounting bracket for support. 2. Place the outdoor unit in a well-ventilated area with sufficient clearance, mount it on a stable platform or bracket, and keep it away from direct sunlight and obstructions. 3. Connect the refrigerant piping between the indoor and outdoor units, ensuring a tight seal to prevent leaks. Install the electrical wiring and connect the control cables. 4. Check all connections for leaks and proper drainage, and ensure electrical integrity. Power on the unit, test its cooling and heating functions, and adjust the settings for optimal comfort.