6 English4. PREPARATIONS BEFORE INSTALLATION(2) Open the eyebolt holes or the holes for passing the piping and wiring out of the unit.• Set the locations for the above holes, open them up and then lay the piping (refrigerant) and wiring(including both power supply and transmission wiring) up to the piping and wiring connections in the unit.(See “6.REFRIGERANT PIPING WORK” and “7. ELECTRIC WIRING WORK” for details.)• It might be necessary to reinforce the ceiling frame to maintain the levelness and to prevent vibration.Consult an architect or carpenter for details.(3) Install the hanging bolts. (Use M8 hanging bolts.)• If it is pre-set, use hole-in anchors. Otherwise, use embedded inserts or embedded foundation bolts tomake sure that the weight of the unit can be supported. Adjust the distance to the ceiling beforehand.255(Suspension bolt pitch)(Suspension bolt pitch)Fig. 3When hanging the unit from the ceiling(1) Check the relative locations of ceiling hole, unit, and hanging bolts.(length: mm)Ceiling slabLong nut orturnbuckleSuspension boltBEV unit properNote: All the above parts are field supplied.AnchorFig. 437 182287Fig. 5When installing the unit on a wall(1) Check the relative locations of ceiling hole, unit, and hanging bolts.(length: mm)