User manual LG GR-T282GEAPBQMHE

[. . . ] However, with the recent increase in the number of high density buildings and use of multi air conditioner systems to ensure effective use of floor space, energy conservation and individual control, installers should ensure it is not possible to exceed density limits in the event of a refrigerant leak. In particular, where a single unit of the multi conditioner system is to be installed into a small room, select a suitable model and installation procedure so that if refrigerant leaks out, density limits are not exceeded. In a room where there is a risk of the density limit being exceeded, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device. The density can be calculated as shown below; Total amount of refrigerant (kg) Min. [. . . ] 50m NOTE : The wiring lengths from the outdoor unit to the indoor units pull box (isolator) when connected in parallel(Below figure) are stated in the above table. This assumes a voltage drop of no more than 2%. If the length exceeds 50m select wire specification in accordance with indoor wiring standards. · Group Operation using a Remote Controller Switch Group operation of multiple indoor units (8 units) using a single remote controller Indoor unit No. 1 AB No. 2 AB No. 3 AB No. 4 AB No. 7 AB No. 8 AB Remote controller (A. B) Indoor power source single phase 220­240V, 50Hz 220V, 60Hz Earth leakage breaker Switch Pull box Indoor unit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CAUTION (1) Keep the refrigerant piping system and the indoor-indoor/indoor-outdoor control wiring systems together. (2) When running power supplies and control wires parallel to each other, run them through separate conduits, or maintain a suitable distance between them. (Current capacity of power wires: 10A or less for 300mm, 50A or less for 500mm) 100 System wiring diagram Power source at outdoor side 3-phase 380­415V, 50Hz 380V, 60Hz Earth leakage breaker Switch Control Communication line Pull box Switch Earth leakage breaker Power source at indoor side Single phase 220­240V, 50Hz 220V, 60Hz (1) (2) (3) (4) (5) (6) (7) (8) Remote control (9) (10) (11) (12) (13) (14) (15) (16) Remote controller Connection summary for indoor unit/outdoor unit Power source at outdoor side 3-phase 380-415V, 50Hz 380V, 60Hz L1 L2 L3 N Power source at outdoor side 3-phase 380-415V, 50Hz 380V, 60Hz L1 L2 L3 N Power source at outdoor side 3-phase 380-415V, 50Hz 380V, 60Hz L1 L2 L3 N Power source at outdoor side 3-phase 380-415V, 50Hz 380V, 60Hz L1 L2 L3 N Earth U1 U2 U5 U6 Earth U1 U2 U5 U6 Earth U1 U2 U5 U6 Earth U1 U2 U5 U6 Pull box Power source at indoor side Single phase 220-240V, 50Hz 220V, 60Hz Control transmission line Connection of shield wire to close end Earth Earth U1 U2 LN LN U1 U2 LN U1 U2 Earth AB Earth AB Earth AB Indoor unit Indoor unit Indoor unit Remote controller Remote controller Remote controller 101 Connection of Power Supply Cable with Control Wire Insert power supply cable and control wire after removing knockout of the piping/wiring panel at the front side of the outdoor unit. Knockout for power supply cable Knockout for control wire Piping/wiring panel When inserting power supply cable and control wire, protect from the edge where the knockout has been removed. Power supply cable 1. Connect the power supply cables and earthing wire to the power supply terminal block. Ensure the cabling passes through the notched section on the side of the electrical parts box and is secured with a clamp. Control wire 1. Connect the control wiring between the indoor and outdoor units (U1, U2, U5, U6). On the outdoor unit ensure wiring is passed through opening at the side of the electrical parts box and secured with a clamp. Use a 2 core shielded wire for control wiring (1. 25mm² or more) in order to prevent noise issues. (Non-polarity) NOTE : 1) Separate the power supply cables and each control cable. Insulate the pipe and the connector on the indoor unit as well. 3) Ensure that all pipe connections are attached securely. (When using polyvinyl chloride pipe, do not forget to apply the adhesive for hard polyvinyl chloride. ) 10-2. Connections to a horizontal main pipe should be dropped in from above. Furthermore, use pipe with a nominal diameter of at least VP20 (VP30) for the collective drain pipe. Limit as much as possible the number of VP25 (Outer dia. : Ø32mm) units that drain into a collective pipe in order to keep the length of the horizontal main pipe to a minimum. Do not connect models with a built-in Extended drain pump and models that use gravity bent stack drains to the same horizontal pipe. Use as long a pipe as possible (10cm) VP30 (Outer dia. : Ø38mm) Downward slope of at least 1/100 10-3. Selecting the Diameter for the Collective Pipe Calculate the amount of drain water based on the number of indoor units that will be connected to the collective drain pipe, then select the pipe diameter accordingly. Assume 2 liters/hour per horsepower for the amount of drain water produced by an indoor unit. [. . . ] · Short plug position (CN112, CN111, CN110 from the left) · Selection can be made by the changing of the short plugs. Short plug position Set data Short Open External static pressure CN112 CN111 CN110 0000 CN112 CN111 CN110 10 Pa (At shipment) 0001 CN112 CN111 CN110 20 Pa 0003 CN112 CN111 CN110 35 Pa 0006 50Pa 195 Appendix High Wall Type (2 series) Installation space Ensure that there is sufficient space for the installation and service work. Keep a minimum of 100mm for clearance between the top plate of the indoor unit and the ceiling surface. Installation diagram of Indoor and outdoor units 100 mm or more Before installing the wireless remote controller · With the remote controller cover removed install the batteries supplied correctly, observeing their polarity. 2 Wireless remote controller Cover 170 or mmm ore For the rear left and left piping Hook Wall 1 Installation plate Hook 170 or mmm ore Insert the cushion between the indoor unit and wall, and tilt the indoor unit for better operation. 3 Batteries Shield pipe Do not allow the drain hose to slacken Air filte r Cut the piping hole sloped slightly (Att ach to t he 6 fron Pan head wood screw t pa nel) Make sure to run the drain hose sloped downwards. 2 Wireless remote controller 4 Remote control holder The auxiliary piping can be connected at the left, rear left, rear right, right, bottom right or bottom left. · Wired remote controller RBC-AMT21E RBC-AMT31E Right · Simple wired remote controller RBC-AS21E RBC-AS21E2 Rear right Rear left Bottom right Left Bottom left · Weekly timer application RBC-AMT31E and RBC-EXW21E2 When installing the Flow Selector Unit (FS Unit), Maintain a minimum space of 300mm for wiring work. Installation position · · · · A position which provides the sufficient space around the indoor unit as shown in the above diagram. A position where there is no obstacle near the air inlet and outlet. [. . . ]