Installation

Insert the connecting cable into the indoor unit.

Don't connect the cable to the indoor unit.

Make a small loop with the cable for easy con- nection later.

Tape the drain hose and the connecting cable.

• Connecting cable

Tape

Connecting pipe

Drain hose

Connecting cable

Indoor unit installation

Hook the indoor unit onto the upper portion of the installation plate.(Engage the three hooks of the rear top and rear lower of the indoor unit with the upper edge and lower edge of the installation plate.) Ensure that the hooks are properly seated on the installation plate by moving it left and right.

Connecting cable

Drain hose

Connecting the pipings to the indoor unit and the 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.

 

 

Spanner (fixed)

 

 

Flare nut

Torque wrench

 

Connection pipe

 

 

Indoor unit tubing

 

 

Outside diameter

Torque

mm

inch

kgf.cm

Ø6.35

1/4

180~250

Ø9.52

3/8

340~420

Ø12.7

1/2

550~660

Ø15.88

5/8

630~820

Ø19.05

3/4

980~1210

Mount the clamp on the boss with a type "B" screw.(SE-H/P: 9k, 12k C/O: 12k)

Type "B" screw

Drain hose

Clamp

 

Boss

 

When extending the drain hose at the indoor unit, install the drain pipe.

Drain hose

Indoor unit drain hose

Adhesive Vinyl tape (narrow)

Wrap the insulation material around the connecting portion.

Overlap the connection pipe heat insulation and the indoor unit pipe heat 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.

Service Manual 21

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LG Electronics LAN121CNM, LAU121CNM, LA121HPMI Insert the connecting cable into the indoor unit, Indoor unit installation

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