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3.3.5 Forming the drain hose and pipe
CAUTION
Insert drain hose and drain cap securely. Drain should slope down to avoid water leak-
age.
When inserting the drain hose, no other material than water should be applied. Applica-
tion of other material than water will cause deterioration of the hose, and may cause
water leakage.
After you remove a drain hose, be sure to attach the drain cap.
When you secure the piping and drain hose with tape, arrange the drain hose so that it
is at the bottom of the piping.
For drain hose piping in low temperature environment, you need to apply freeze protec-
tion to prevent a frozen drain hose.
After cooling operation is performed in low temperature environment, (when outdoor
temperature under 32°F (0°C),) water in the drain hose could be frozen. Frozen drain
water will block the water flow in the hose, and may cause water leakage at the indoor
unit.
[For (A) Rear piping, (B) Right piping and (C) Bottom piping]
(1) Install the indoor unit piping in
the direction of the wall hole
and bind the drain hose and
pipe together with vinyl tape.
(2) Install the piping so that the
drain hose is at the bottom.
(3) Wrap the pipe of the indoor unit
that visible from the outside
with decorative tape.
(4) For right or bottom outlet
piping, cut off the piping outlet
cutting groove with a hacksaw.
Bind with vinyl tape
Bottom piping
Pipe (top)
Rear piping
Indoor unit drain hose
(bottom)
[For (D) Left bottom piping, (E) Left piping and (F) Center piping, (G) Left rear
piping]
CAUTION
Insert the drain hose and drain cap into the drain port, making sure that it comes in con-
tact with the back of the drain port, and then mount it. If the drain hose is not connected
properly, leaking will occur.
(1) Interchange the drain cap and the drain hose.
• For left outlet piping, cut off
the piping outlet cutting groove
with a hacksaw.
• Remove the drain cap by pull-
ing at the projection at the end
of the cap with pliers, etc.
Left side
Right side
Drain cap
Drain hose
Drain hose removal and installation method of the 4/7/9 model
Removal
Installation
Screw
Drain hose
Drain fixture
Drain cock
Screw hole
Drain hose
Screw
Drain fixture
Remove the screw at the left
of drain hose and pull out
drain hose.
Vertically insert the drain hose toward the inside, so
that the drain fixture can accurately align with the screw
hole around the drain cock. After inserting and before
replacing, reinstall and fix the removed screws.
Installing the drain cap
Drain cap
Drain cock
No gap
Hexagonal
wrench
Use a hexagonal wrench 3/16 in (4 mm) at op-
posite side to insert the drain cap, till the drain cap
contacts the tip of drain cock.
(2) Align the marks on the wall hook bracket and shape the connection pipe.
For left piping and left rear piping, align the marks on the wall hook bracket and
shape the connection pipe.
Alignment marks
Wall hook
bracket
Connection
piping
Connection pipe
(Liquid pipe)
Connection pipe (Gas pipe)
4/7/9 model
Wall hook bracket
Tapping screw
(accessory, 5 pcs)
30/36 model
Wall hook bracket
Tapping screw
(accessory, 8 pcs)
3.3.3 Cutting the hole in the wall for the connecting piping
(1) Cut a hole in the wall at the position shown in the following.
(2) Cut the hole so that the outside end is lower (3/16 to 3/8 in (5 to 10 mm)) than the
inside end.
(3) Always align the center of the wall hole. If misaligned, water leakage will occur.
(4) Cut the wall pipe to match the wall thickness, stick it into the wall cap, fasten the cap
with vinyl tape, and stick the pipe through the hole.
(5) For left piping and right piping, cut the hole a little lower so that drain water will flow
freely.
4/7/9 model
Center mark
Center mark
2-9/16 (65) dia. hole
2-9/16 (65) dia. hole
Wall hook bracket
Unit: in (mm)
30/36 model
Center mark
Unit: in (mm)
Wall hook bracket
3-1/8 (80) dia. hole
3-1/8 (80) dia. hole
3/8 (10)
or more
3/8 (10)
or more
Lower
Lower
Attach the wall pipe
Fasten with vinyl
tape
Wall cap*
Wall pipe*
(Inside)
Wall
(Outside)
* Locally
purchased
3/16 to
3/8 in
(5 to 10
mm) low
WARNING
If the wall pipe is not used, the
cable interconnecting the indoor
and outdoor units may touch
metal and cause electric leakage.
3.3.4 Attach the drain hose insulation (30/36 model only)
• Wrap the insulation around the
drain hose, making sure that
there are no gaps.
• Attach the Insulation (Drain
hose) to the drain hose.
Drain hose
Insulation (Drain hose)
(Accessories)
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2017/12/20 9:48:59
2017/12/20 9:48:59
