LG LAN121CNM Service Manual - Page 20

For right rear piping

Page 20 highlights

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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20
Room Air Conditioner
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.
Route the indoor tubing and the drain
hose to the required piping hole position.
Plastic bands
Insulation material
Connection pipe
Flare nut
Indoor unit tubing
Torque wrench
Spanner (fixed)
Vinyl tape(narrow)
Adhesive
Drain pipe
Indoor unit drain hose
When extending the drain hose at the indoor
unit, install the drain pipe.
Tighten the flare nut with a wrench.
For right rear piping
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.
Indoor unit tubing
Flare nut
Pipings
Drain hose
Ø
6.35
1/4
1.8
Ø
9.52
3/8
4.2
Ø
12.7
1/2
5.5
Ø
15.88
5/8
6.6
Outside diameter
mm
inch
Torque
Vinyl tape(narrow)
Connection
pipe
Connecting cable
Vinyl tape
(wide)
Wrap with vinyl tape
Indoor
unit pipe
Pipe
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
Drain hose
Pipe
Vinyl tape(wide)
Wrap the area which accommodates the rear piping
housing section with vinyl tape.
Mount the clamp on the boss with a type "B"
screw.(SE-H/P: 9k, 12k
C/O: 12k)
Drain hose
Clamp
Boss
Type "B" screw