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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
Ø6.35 1/4 180~250
Ø9.52 3/8 340~420
Ø12.7 1/2 550~660
Ø15.88 5/8 630~820
Ø19.05 3/4 980~1210
Outside diameter
mm inch
Torque
kgf
.
cm
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
Installation