LG 3828A30087S Installation Manual page 19

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
connection later.
Tape the drain hose and the connecting cable.
• 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 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.
Indoor unit tubing
• Tighten the flare nut with a wrench.
Tape
Connecting
pipe
Drain hose
Connecting cable
Connecting
cable
Drain hose
Flare nut Pipings
Torque wrench
Indoor unit tubing
Outside diameter
mm inch
Ø6.35 1/4
Ø9.52 3/8
Ø12.7 1/2
Ø15.88 5/8
Ø19.05 3/4
• Mount the clamp on the boss with a type "B"
screw.(SE-H/P: 9k, 12k C/O: 12k)
Type "B" screw
Clamp
Boss
• When extending the drain hose at the indoor unit,
install the drain pipe.
Drain hose
Vinyl tape
Adhesive
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
Installation
Spanner (fixed)
Flare nut
Connection pipe
A
mm inch
1.1~1.3 0.043~0.051
1.5~1.7 0.059~0.066
1.6~1.8 0.063~0.070
1.6~1.8 0.063~0.070
1.9~2.1 0.074~0.082
Drain hose
Indoor unit drain hose
(narrow)
Installation Manual 19