LG MU3M21.UE0R0 User Manual download pdf (Page 17)

Flaring Work and Connection of Piping

Installation Manual 17

ENGLISH

3. 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)

CAUTION: Installation Information (For right piping)

For right piping, follow the instruction below.

Good case

• Press on the upper side of clamp and unfold

the tubing to downward slowly.

Bad case

• Following bending type from left to right could

cause problem of pipe damage.

Align the center of the piping and sufficiently

tighten the flare nut by hand.

Connecting pipe order

1) A~E-UNIT gas side pipe

2) A~E-UNIT liquid side pipe

Finally, tighten the flare nut with torque wrench

until the wrench clicks.

• When tightening the flare nut with torque

wrench ensure the direction for tightening

follows the arrow on the wrench.

Main gas

side valve

Main liquid

side valve

Gas side piping

Liquid

side piping

A-UNIT

B-UNIT

C-UNIT

D-UNIT

E-UNIT

Outdoor unit

Connection of piping - Outdoor

Outside diameter Torque

mm inch kgf

Ø6.35 1/4 1.8~2.5

Ø9.52 3/8 3.4~4.2

Ø12.7 1/2 5.5~6.6

Ø15.88 5/8 6.3~8.2

Ø19.05 3/4 9.9~12.1

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LG MU3M21.UE0R0 User Manual Page 17

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