5 InstallationInstallation manual5FBA35~140A2VEBSplit system air conditioners4P456962-1C – 2017.045 Installation5.1 Mounting the indoor unit5.1.1 Precautions when mounting the indoorunitINFORMATIONAlso read the precautions and requirements in thefollowing chapters:▪ General safety precautions▪ Preparation5.1.2 Guidelines when installing the indoor unitINFORMATIONOptional equipment. When installing optional equipment,also read the installation manual of the optional equipment.Depending on the field conditions, it might be easier toinstall the optional equipment first.▪ In case of installation with duct, but no duct service opening.Modify the position of the air filters.12431 Remove the air filter(s) from the outside of the unit.2 Remove the interchangeable plate.3 Install the air filter(s) on the inside of the unit.4 Reinstall the interchangeable plate.▪ When installing an air inlet duct, select fixing screws that stick out5 mm on the inside of the flange to protect the air filter fromdamage during maintenance of the filter.a bc5 mma Air inlet ductb Inside of the flangec Fixing screw▪ Ceiling strength. Check whether the ceiling is strong enough tosupport the weight of the unit. If there is a risk, reinforce the ceilingbefore installing the unit.▪ Installation options:a c eb125460160(160~300)375a cb460 ddff125≥300ABModel f (mm)35~50 76060~71 1060100~140 1460A Mounting the air inlet with a canvas connectionB Mounting the air inlet panel directlya Ceiling surfaceb Ceiling openingc Air inlet panel (optional accessory)d Indoor unit (back side)e Canvas connection for air inlet panel (optional accessory)NOTICEThe unit can be used with bottom suction by replacing theinterchangeable plate by the air filter holding plate.aaba Air filter holding plate with air filter(s)b Interchangeable plate▪ Suspension bolts. Use M10 suspension bolts for installation.Attach the hanger bracket to the suspension bolt. Fix it securelyusing a nut and washer from the upper and lower sides of thehanger bracket.▪ Ceiling opening size. Make sure the ceiling opening is within thefollowing limits: