Connection Of Piping-Outdoor - LG LAN091CNP, LAU091CNP, LAN121CNP Service Manual

Connection of Piping -Outdoor
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.
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.
Outside diameter
mm inch
Ø6.35 1/4
Ø9.52 3/8
Ø12.7 1/2
Ø15.88 5/8
Ø19.05 3/4
Torque
kgf.cm
180~250
340~420
550~660
630~820
980~1210
Flaring work and connection of piping
Outdoor unit
Liquid side piping
(Smaller diameter)
Torque wrench
Gas side
piping
(Bigger
diameter)
Service Manual 23