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THE INDOOR UNIT INSTALLATION
18
Check
1
Compare the flared work with the figure
by.
2
If a flared section is defective, cut it off
and do flaring work again.
Smooth all round
Inside is shiny without scratches
Inclined
Even length
all round
Connecting the installation pipe
and drain hose to the indoor unit.
1
Align the center of the pipes and suffi-
ciently tighten the flare nut by hand
Indoor unit tubing
2
Tighten the flare nut with a 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
Wrench
Indoor unit tubing
= Improper flaring =
Surface
Cracked Uneven
damaged
thickness
Flare nut Pipes
Torque
kgf . m
1.8~2.5
3.4~4.2
5.5~6.5
6.3~8.2
9.9~12.1
Open-end wrench
(fixed)
Flare nut
Connection
pipe
CAUTION
!
• When mechanical connectors are
reused indoors, sealing parts shall be
renewed.
• When flared joints are reused indoors,
the flare part shall be re-fabricated.
3
When needed to extend the drain hose of
indoor unit, assembly the drain pipe as
shown on the drawing
Drain pipe
Vinyl tape(narrow)
Adhesive
Wrap the insulation material
around the connecting portion.
1
Overlap the connection pipe insulation ma-
terial and the indoor unit pipe insulation
material. Bind them together with vinyl
tape so that there may be no gap.
Indoor unit drain hose
Insulation material
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