Connection Of The Drain Hose; Connection Of Piping -Outdoor - LG LA121CNM Installation Manual

Installation
Connecting the Piping

Connection Of The Drain Hose

• The drain hose can be connected at two different
positions. Use the most convenient position and, if
necessary, exchange the position of the drain pan,
rubber cap and the drain hose.
Drain pan
Rubber cap
Drain hose
Exchange if necessary
• Remove the drain hose.
• Securely insert both the rubber plug and drain
hose into the drain outlets.
Be sure the rubber the cap is securely fastened so
that there is no leakage.

Connection Of Piping -Outdoor

Connecting the Piping
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
Ø6.35
Ø9.52
Ø12.7
Ø15.88
Ø19.05
22 Room Air Conditioner
Torque
inch
1/4 1.8
3/8 4.2
1/2 5.5
5/8 6.6
3/4 6.6
2
Outdoor unit
Suction Line piping
(Bigger diameter)
Torque wrench
4
1
Evaporator Line
piping
(Smaller
diameter)
3