6 EnglishCAUTION• Install the indoor and outdoor units, power cord and connecting wires at least 1 meter away from televisionsor radios to prevent picture interference and noise.(Depending on the incoming signal strength, a distance of 1 meter may not be sufficient to eliminate noise.)• Install the indoor unit as far as possible from fluorescent lamps.If a wireless kit is installed in a room where the electronic lighting type (inverter or rapid start types) fluo-rescent lamps exist, the transmitting distance of a remote controller may be shorter.• The sound pressure level is less than 70 dBA.(2) Investigate whether the installation location can bear the weight of the unit and, if necessary, rein-force the location with such as boards and beams before installation. To avoid vibration andabnormal noise, reinforce the location before installation.(3) The indoor unit may not be directly installed on the wall. Use the attached installation plate (1)before installing the unit.4. PREPARATION BEFORE INSTALLATION(1) Remove the installation plate (1) from the unit, and then attach it to the wall.(The installation plate is temporarily attached to the indoor unit with a screw (for class 100 only).)(Refer to Fig. 3)(a) Check the place for a hole for securing the installation plate (1).• Choose a place so that there is a gap (50 mm or more) between the ceiling and the main unit.(b) Temporarily attach the installation plate (1) at the temporary-securing position using the hole, and usea level to make sure the plate is either level or its drain hose side is tilted slightly downward.(c) Secure the installation plate (1) to the wall using the attachment screws for the installation plate (2) orbolts.• If using bolts, attach the plate with a M8 or M10 bolt on both sides (for a total of 2 bolts).• If dealing with concrete, use commercially available foundation bolts (M8 or M10).(2) Open the through-hole for the piping.• The refrigerant pipe and drain pipe can be passed out in one of 6 directions: left, bottom-left, back-left,right, bottom-right, or back-right. (Refer to Fig. 4)• Referring to the punch mark on the installation plate (1), choose where to pass the piping out and opena through-hole (φ80mm) in the wall.Open the hole so that there is a downward slope for the drain piping.(Refer to “7. DRAIN PIPING WORK”.)(3) If using the left, bottom-left, right, or bottom-right positions for piping, cut out the through-hole forthe piping in the front grill using such as a box cutter. (Refer to Fig. 5)Right pipeLeft pipeBack-left pipeBack-right pipeBottom-left pipeBottom-right pipeFront grilleFig. 3Fig. 4 Fig. 5Installation plate (1) (accessory) Temporary-securing screw(For the 71 class, the installationplate (1) is not temporarily attached tothe unit.)Cut out alongthe groove.Cut away