LG LAN121CNM Service Manual - Page 20
For right rear piping
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Connecting the pipings to the indoor unit and drain hose to drain pipe. • Put a couple drops of refrigerant oil on the face of the flare before assembling taking care not to add any contaminants. • Align the center of the pipings and sufficiently tighten the flare nut by hand. Wrap the insulation material around the connecting portion. • Overlap the connection pipe insulation material and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there is no gap. Plastic bands Insulation material Indoor unit tubing Flare nut Pipings • Tighten the flare nut with a wrench. Indoor unit tubing Connection pipe Flare nut Torque wrench Spanner (fixed) Outside diameter mm inch Ø6.35 1/4 Ø9.52 3/8 Ø12.7 1/2 Ø15.88 5/8 Torque 1.8 4.2 5.5 6.6 • Mount the clamp on the boss with a type "B" screw.(SE-H/P: 9k, 12k C/O: 12k) Type "B" screw Clamp Boss Drain hose • Wrap the area which accommodates the rear piping housing section with vinyl tape. Connection pipe Vinyl tape (wide) Indoor unit pipe Wrap with vinyl tape Connecting cable Pipe Vinyl tape(narrow) • Bundle the piping and drain hose together by wrapping them with vinyl tape over the range within which they fit into the rear piping housing section. Wrap with vinyl tape Pipe • When extending the drain hose at the indoor unit, install the drain pipe. Drain pipe Indoor unit drain hose Adhesive Vinyl tape(narrow) Drain hose Vinyl tape(wide) For right rear piping Route the indoor tubing and the drain hose to the required piping hole position. Drain hose 20 Room Air Conditioner
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