The answer to 'how to clean installation' is to regularly clean and maintain your HVAC system to ensure it runs efficiently and safely. This includes cleaning the air filters, coils, and blower components to remove dust, debris, and contaminants that can build up over time.
For the air filters, you should check and replace them every 1-3 months, depending on usage and indoor air quality. The coils and blower should be cleaned annually by a professional HVAC technician. They have the right tools and expertise to thoroughly clean the system without causing any damage.