How should the LG LWG07-Series air conditioner be installed in terms of positioning and tilt?

The unit must be installed with a slight outward tilt of approximately 3 degrees (about 10 to 15 mm, or a quarter-bubble on a level) to allow condensation water to drain properly. There must be at least 50 cm (20 inches) of clear space behind the unit to ensure adequate airflow, and the unit should be kept out of direct sunlight. (Page 15)