Professional installation is strongly recommended for all types of air conditioners, and for split-type units, it is effectively required because the process involves handling refrigerants, drilling through walls, mounting heavy components, and making electrical connections that must comply with safety standards. In the Philippines, most air conditioner warranties are voided if the unit is not installed by an accredited technician from the manufacturer or an authorized service center, meaning that improper DIY installation could leave you without warranty coverage if a problem arises. Hiring a licensed and experienced installer ensures that the unit is set up correctly, operates efficiently, and does not pose safety risks to your household.