User manual LG DK6946PT

[. . . ] Turn off the main power supply switch or breaker before attempting any electrical work. Failure to do so may cause electric shock. If the connecting cable is connected in a wrong way, electric parts may be damaged. When moving the air conditioner for the installation into another place, be very careful not to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle. [. . . ] After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas might generate. Electrical work must be performed by a qualified electrician in accordance with the Installation Manual. Make sure the air conditioner uses an exclusive power supply. An insufficient power supply capacity or inappropriate installation may cause fire. Use the specified cables for wiring connect the terminals securely fix. To prevent external forces applied to the terminals from affecting the terminals. Conform to the regulations of the local electric company when wiring the power supply. Inappropriate grounding may cause electric shock. Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas. If a combustible gas leaks, and stays around the unit, a fire may occur. CAUTION New Refrigerant Air conditioner Installation · THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER. Check them when opening the carton box. Part Installation manual Quantity 5 1 Gas side Branch pipe Liquid side 1 1 Shape This booklet Use For installation works Ø25. 4 mm ­ Ø15. 9 mm, Ø15. 9 mm Ø25. 4 mm ­ Ø28. 6 mm (Inner diameter) Ø12. 7 mm ­ Ø9. 5 mm, Ø9. 5 mm EN 5 Branch Kit 1:2 3 REFRIGERANT PIPING Tolerance of pipe length and Height difference Indoor unit A Indoor unit B Outdoor unit Branch piping b Branch piping a H L Main piping Model (RAV-) Full length (L + a or L + b) Pipe Length (One Direction) Branch piping (a, b) SM224, SM280 Below 70 m (actual length) Below 20 m (actual length) Below 10 m Below 30 m Below 30 m Below 0. 5 m Less than 10 bends EN * Difference of branch piping length (b ­ a, or a ­ b) Outdoor Unit Installed Outdoor Unit Above Indoor Unit Indoor Unit Height Outdoor Unit Installed (H) Difference Below Indoor Unit Between Indoor Units (h) Remarks Ensure that the shortest pipe length complies with the following: L + b 7. 5 m ab CAUTION When planning a layout for Units A and B, comply with the following: 1. The lengths after branching ("a" and "b") should be equal if feasible. Install Units A and B so that the difference of the branching lengths becomes less than 10 m if the lengths cannot be equal due to the branch pipe position. Install Units A and B on the same level. If Units A and B cannot be installed on the same level, the difference in level should be limited to 0. 5 m or less. Be certain to install Units A and B in the same room. Units A and B cannot be operated independently each other. 6 EN Branch Kit 1:2 Piping materials and sizes Use general copper pipes with a wall thickness of 0. 8 mm for Ø6. 4 mm, Ø9. 5 mm, and Ø12. 7 mm, with a wall thickness of 1. 0 mm for Ø15. 9 mm, with a wall thickness of 1. 2 mm for Ø19. 1 mm, and with a wall thickness of 1. 0 mm for Ø28. 6 mm (half hard). Do not use any copper pipes with a wall thickness less than these thicknesses. In parentheses ( ) are wall thickness Model (RAV-) Gas side Pipe side Liquid side Main piping Branch piping Main piping Branch piping SM224, SM280 Ø28. 6 (half hard 1. 0) Ø15. 9 (1. 0) Ø12. 7 (0. 8) Ø9. 5 (0. 8) Branch pipe Now the refrigerant pipe is installed using branch pipes supplied as accessories. · Bend and adjust the refrigerant piping so that the branch pipes and pipe after branching become horizontal. · Fix the branch pipes onto a wall in a ceiling or onto a column. · Provide a straight pipe longer than 500 mm in length as the main piping of the branches. [. . . ] (Wires (1), (2), (3) and ground wire. ) 2. Install wires (1), (2) and ground wire only when installing connection wires from the header unit to the follower unit. Remote Controller wiring 1. Installing connection shield wires (MVVS 0. 5 to 2. 0 mm2) from the header unit to the follower unit to conform to EMC standard. Install shield wires between the header unit and follower unit. [. . . ]