caution - Tekno Point

♦ ADDITIONAL REFRIGERANT CHARGEFig. 6-11- Refrigerant cannot be charged until field wiring has been completed.- Refrigerant may only be charged after performing the leak test and the vacuum pumping.- When charging a system, care shall be taken that its maximum permissible charge is neverexceeded, in view of the danger of liquid hammer.! CAUTION- Charging with an unsuitable substance may cause explosions and accidents, so always ensure thatthe appropriate refrigerant is charged.- Refrigerant containers shall be opened slowly.- Always use protective gloves and protect your eyes when charging refrigerant.■ The outdoor unit is factory charged with refrigerant R410A. If the connecting pipe is longer than 5m, it is required toadd refrigerant. In the below table, the amounts of refrigerant to be added for the models are listed for each additionalmeter of pipe length.Refrigeration pipe lengthNo added refrigerant when the lengthL(m) is less than 5mAdded refrigerant when the pipe lengthL(m) is over than 5mAdditional refrigerantto be charged-----------30g/mMax. height difference between indoorunit and outdoor unit (m)Max. Pipe Length (m)15 20IV. 7 WIRING DIAGRAMS! CAUTIONBefore installing the electrical equipment, please pay attention to the following matters which have been speciallypointed out by our designers:(1) Check to see if the power supply used conforms to the rated power supply specified on the nameplate.(2) The capacity of the power supply must be large enough.(3) The lines must be installed by professional personnel.(4) An electricity leakage protection switch and an air switch with gap between electrode heads larger than 3mm shallbe installed in the fixed line.(5) During the wiring, the wiring terminal or the single-core wire must be used; the direct wiring between the multi-corewire and wiring board would cause fire.(6) Connect the ground wires correctly to the metal box.(7) All line connections must conform to the schematic diagram of lines (see annex of wiring diagrams). Wrongconnection may cause abnormal operation or damage of the air-conditioning unit.(8) Do not let any cable contact the refrigerant pipe, the compressor and moving parts such as fan.♦ POWER CABLE CONNECTION- Air-conditioning unit with single-phase power supply(1) Remove the front-side panel of the outdoor unit.(2) Pass the cable though rubber ring.(3) Connect the power supply cable to the “N(1), (2), (3)” terminals and the grounding screw on the metal electric box.(4) Use cable fastener to bundle and fix the cable.58