2.2.1.1 Mark the spots on the ceiling where you want to install the indoor unit.2.2.1.2 Drill holes at the marking spots and then insert bolt anchors. Use existing ceiling supports or construct a suitable support.NOTEUse a hole-in-anchor, sunken insert for existing ceilings.2.2.1.3 Install the suspension bolts (use W3/8 or M10 suspension bolts, 4 pieces) depending on the ceiling type.2.2.1 Install the suspension bolts7GB-72.2.2.2 Hang the indoor unit to the suspension bolts between two nuts.2.2.2.3 Screw the nuts to suspend the unit2.2.2.4 Adjust level of the unit by using level vial for all four sides.2.2.2 Hanging the indoor unit2.2.2.1 Screw double nuts to each suspension bolts making space for hanging the indoor unit.Screw nutWasherHangingscrew boltOverhang partShockproof cushionConcreteSuspension bolt(3/8” or M10)-field supplyHole in anchorHole in plugInsertEnsure that the ceiling is strong enough to bear the weight of the unit. Before hanging the unit, test thestrength of each attached suspension bolt. It might be necessary to reinforce the ceiling frame toprevent shaking. Consult an architect or carpenter for detailsCAUTION2. INDOOR UNIT INSTALLATION2.2 CEILING INSTALLATIONIt is recommended to install the Y joint before installing the indoor unitWhen moving the unit during or after unpacking, make sure to lift by holding its hooks.Do not exert any pressure on other parts, especially the refrigerant piping and drain piping.CAUTION