LG ARUN096BT2 Installation Manual - Page 21

Refrigerant piping installation Connection of High/Low Pressure Common pipe ENGLISH Slave Outdoor Unit Master Outdoor Unit Slave2 Outdoor Unit Slave1 Outdoor Unit Master Outdoor Unit 2 outdoor units 3 outdoor units 1. For the High/Low Pressure Common pipe, connect both Master Outdoor Unit and Slave (1, 2, 3) Outdoor Unit to the pipe (field supply) by using elbows (field supply) 2. For cutting the pipe, connect the High/Low Pressure Common pipe after removing burrs, dusts and foreign materials within the pipe. Otherwise, the product may not operate due to sludge within the pipe. When connecting the pipes from the front of the outdoor unit, remove part . When connecting the pipes from the side of the outdoor unit, remove part (the whole "Knock out" part). Knock out Communication Line Hole Power Cable Hole Pipe Hole (Front) (Side) WARNING After installing the pipe, clog the pipe excavation inlet of the front panel and the side panel (Wire may be damaged due to entry of rats, animals, etc). CAUTION When you use the Hi/Low pressure common pipe to connect 2~3 ODU, please remove the factory supplied rubber cap as shown in the figure. When installing just one ODU, please make sure to remove the factory supplied rubber cap and replace it by brazing the copper cap supplied with manual in Service port cap Cut the pipe with a cutter to suit the length. (Don't cut less than 70mm) ODU. If you do not replace the factory supplied Outdoor unit Liquid rubber cap, there might be refrigerant joint pipe (used for more than 2 valve 70mm leakage. units installation) Cap Gas valve Installation Manual 21