Installation manual

8
2. In case that pipes jut out from bottom surface of the indoor unit. (Fig. 2)
Process figure
(Fig. 2)
48°
R50 (R2"
) - R60
80
38°
R30 - R40 (R1.5")
80
Refrigerant pipe
Refrigerant pipe
Flare nut
Refrigerant pipe (gas)
OD ø12.7 (A18)
OD ø15.88 (A24)
Flare nut
Refrigerant pipe (liquid)
OD ø6.35
Wall hole sealing and fixing pipe to wall
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
b Knockout
c PVC adhesive tape
d Adhesive
8 Drain pipe cover
D Drain pipe (VP-20)
c
8
D
b
a
d
b
a
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 Ta pe
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
b Supporting metal fixture
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
c
a
0.75 m - 1.5 m
i
g
h
f
e
d
8
7
a
G
50 mm
8
a
G
b
7
D
c
c
Indoor unit
Wall hole cover I
Seal the wall hole
gap with putty I.
Fix the pipe to wall with
pipe fixing band E.
Cut off the
extra length. Pipe fixing
band E
Fixing screw F