51Installing the Suspension ScrewWooden StructureOrig Inal Concrete Slad Steel Reinforcement StructureNew Concrete LabUse M8 or M10 suspension screws (4, prepared in the field) (When the suspension screw height exceeds 0.9m,M10 size is theonly choice). These screws shall be installed as follows with space adapting to air conditioner overalldimensions according tothe original building structures.A square wood shall be supported by thebeams and then set the suspension screws.To set with embedded parts,foundation bolts etc.Use hole hinge, hole plunger or hole bolt Use steel angle or new support steel angle directlyHanging of the indoor unitPipe MaterialAllowable Pipe Length and DropSupplementary Refrigerant• Fasten the nut on the suspens on screw and then hang the suspension screw in the T slot of the suspension partof the unit.• Aided with a level meter, adjust level of the unit within 5mmCAUTION• In installation,if there is refrigerant gas leakage, pleasetake ventilation measures immediately.The refrigerant gaswill generate poisonous gas upon contacting fire.• After installation, please verify that there is no refrigerant leakage. The leaked refrigerant gas will producepoisonous gas when meeting fire source such as heater and furnace etc.Model Gas Side Liquid SideAD25S2SS1FA AD35S2SS1FAAD25S2SS2FA AD35S2SS2FA φ9.52 φ6.35AD50S2SS1FA AD50S2SS2FA φ12.7 φ6.35AD71S2SS1FA AD71S2SS2FA φ15.88 φ9.52Phosphorus deoxidized copper seamless pipe (TP2M) for air conditioner.These parameters differ according to the outdoor unit. See the instruction manual attached with the outdoor unitfor details.The refrigerant supplementation shall be as specified in the installation instructions attached with the outdoor unit.The adding procedure shall be aided with a measuring meter for a specified amount of supplemented refrigerant.