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2. In case that pipes jut out from bottom surface of the indoor unit. (Fig. 2)
Refrigerant pipe
Refrigerant pipe
(Fig. 2)
Wall hole sealing and fixing pipe to wall
Indoor unit
4-7
DRAIN PIPE CONNECTION
• Use hard PVC (ø26 mm O.D.) for drain pipe D.
• Use drain pipe cover 8 which is provided in accessories, wind it around drain pipe D in the indoor unit side.
• Use vinyl chloride adhesive for joints prevent leakage.
• When the drain pipe D has to go through an indoor space, be sure to cover the drain pipe D with insulation
readily available in the market.
• For drain pipe connection, use care so as no extra force applies to unit side piping.
1. In case of connecting drain pipe D to drain-joint bush directly.
• Be sure to connect drain pipe D to drain-joint bush securely as shown in the right.
• Be sure to pass drain pipe D with drain pipe cover through knockout hole on bottom surface so as to
keep an inclination.
a Drain-joint bush
a
b Knockout
c PVC adhesive tape
d Adhesive
8 Drain pipe cover
D Drain pipe (VP-20)
b
Process figure
Flare nut
Refrigerant pipe (gas)
OD ø12.7 (A18)
OD ø15.88 (A24)
Flare nut
Refrigerant pipe (liquid)
OD ø6.35
Wall hole cover I
Cut off the
Seal the wall hole
extra length.
gap with putty I.
Fix the pipe to wall with
pipe fixing band E.
Fixing screw F
a
c
8
D
d
30
2. In case of connecting drain pipe D to drain-joint bush through drain hose.
• Drain hose 7 which is contained in accessories is flexible, so use it when drain pipe D should be
alternated direction.
• Be sure to wind pipe cover which is provided in accessories around drain hose with vinyl tape.
• Cut VP-20 in dimension as shown at the right, and connect drain-joint bush with drain hose with adhe-
sive.
a Drain-joint bush
b Tape
c Adhesive
7 Drain hose
8 Drain pipe cover
D Drain pipe (VP-20)
G Drain-joint pipe (VP-20)
3. • Be sure that drain pipe D tilts downward (1/100 or more) on outdoor side (drain side), and no traps or
heaving exist.
• When the drain pipe D is relatively long, provide support metal fixtures midway to eliminate waving.
• Odor trap at the end of drain pipe D is not required.
a Insulation
Pipe fixing
b Supporting metal fixture
band E
c Downward inclination of 1/100 or more
d Air bleeder
e Do not raise
f Odor trap
g The end of drain hose is immersed in water
h Gap from the ground level is 50 mm or less
i Sewage ditch
b
8
a
c
G
a
7
50 mm
7
8
a
d
G
b
8
D
c
0.75 m - 1.5 m
b
c
e
g
f
h
i
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