51-5. Additional Materials Required for Installation1. Refrigeration (armored) tape2. Insulated staples or clamps for connecting wire(See local codes.)3. Putty4. Refrigeration lubricant5. Clamps or saddles to secure refrigerant tubing2. Installation Site Selection2-1. Indoor UnitAVOID: direct sunlight. nearby heat sources that may affect performance of theunit. areas where leakage of flammable gas may be expected. placing or allowing any obstructions near the air conditionerinlet or outlet. installing in rooms that contain instant-on (rapid-start)fluorescent lamps. (These may prevent the air conditionerfrom receiving signals.) places where large amounts of oil mist exist. installing in locations where there are devices thatgenerate high-frequency emissions.DO: select an appropriate position from which every corner ofthe room can be uniformly cooled. select a location that will hold the weight of the unit. select a location where tubing and drain hose have theshortest run to the outside. allow room for operation and maintenance as well asunrestricted air flow around the unit. (Fig. 1) install the unit within the maximum elevation difference(H1, H2, H3, H4) above or below the outdoor unit andZLWKLQDWRWDOWXELQJOHQJWK ///////from the outdoor unit as detailed in Table 3 and Fig. 2.3.3 ft.(1m) (1m)(1m)3.3 ft.(1m)3.3 ft. 3.3 ft.3.3 ft.(1m)Fig. 1INDOORUNIT (1)INDOORUNIT (4)INDOORUNIT (3)INDOORUNIT (2)Tubing length (L1)L2L3L4H2H3H4OUTDOORUNITElevationdifference (H1)Fig. 2WARNING To prevent abnormal heat generationand the possibility of fire, do notplace obstacles, enclosures andgrilles in front of or surrounding theair conditioner in a way that mayblock air flow.CAUTIONAir delivery will be degraded if the distancefrom the floor to the ceiling is greater than10 ft. (3 m).