From inside (document excerpt):
Air-Conditioners PEA-RP·EAQ INSTALLATION MANUAL FOR INSTALLER For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing the air-conditioner unit. English Contents 1. 2. 3. 4. 5. Safety precautions .2 Installation location 3 Installing the indoor unit 3 Installing the refrigerant piping 5 Drainage piping work (Fig. 5-1) . Electrical work .6 Duct work (Fig.