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3.3. Pipe installation
3.3.1. Indoor unit piping direction
The piping can be connected in the 6 directions indicated by (1), (2), (3), (4), (5) and (6) in
the figure. When the piping is connected in direction (2) or (5), cut along the piping groove
in the side of the base with a hacksaw.
When connecting the piping in direction (3), (6) cut a notch in the thin wall at the front
bottom of the base.
(2) Right outlet
(3) Right bottom
outlet
3.3.2. Cutting the hole in the wall for connecting the pipes
(1) Cut a 65 mm diameter hole in the wall at the position shown in the following.
(2) Cut the hole so that the outside end is lower (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 the left piping and the right piping, cut the hole a little lower so that drain water will
flow freely.
■ For right rear or left rear piping
(The following figure is a front view of the indoor unit installation location.)
59
For left rear
piping
■ For right or left piping
For left
piping
54
■ For right bottom or left bottom piping
For left bot-
tom piping
182
29
Fasten with vinyl tape *
Wall cap *
Wall pipe *
(Inside)
En-6
(Rear)
(5) Left outlet
(4) Left rear
(1) Right rear
(6) Left bottom
outlet
outlet
outlet
59
For right rear
piping
Unit: mm
For right
piping
54
64
29
5~10 mm
Wall
(Outside)
* Locally purchased
Always use the wall pipe. If the wall pipe is not used, the cable that is connected between
the indoor unit and the outdoor unit may touch metal, and cause an electric leakage.
3.3.3. Indoor unit installation
• Use the included and fasten the indoor unit at 4 locations (→) each at top and the
middle of the unit.
• When the unit is set to the wall, use the wall hook bracket and hook the top of the
indoor unit on the indoor unit wall hook bracket.
• Fix the indoor unit with 4 screws surely. If improperly installed, might cause to injury
due to the toppling or falling.
• Install the indoor unit at the place that has adequate strength. Install the indoor unit
so that the installed unit can withstand the weight of adult body weight.
If improperly installed, might cause accidental injury due to the toppling or falling.
3.3.4. Installing the wall hook bracket
Unit: mm
(1) Install the wall hook bracket so that it is correctly positioned horizontally and vertically.
If the wall hook bracket is tilted, water will drip to the floor.
(2) Install the wall hook bracket so that it is strong enough to support the weight of the
unit.
• Fasten the wall hook bracket to the wall with 5 or more screws through the holes near
the outer edge of the bracket.
• Check that there is no rattle at the wall hook bracket.
Weight
Install the wall hook bracket level, both horizontally and vertically.
3.3.5. Forming the drain hose and pipe
• Insert drain hose and drain cap securely. Drain should slope down to avoid water
leakage.
Unit: mm
• When inserting the drain hose, no other material than water should be applied.
Application of other material than water will cause deterioration of the hose, and may
For right bot-
cause water leakage.
tom piping
• 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
protection to prevent a frozen drain hose.
After cooling operation is performed in low temperature environment (when outdoor
temperature under 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.
(1) Pass the refrigerant pipe through the piping hole to indoor side.
(2) Arrange the pipes according to the direction of piping.
WARNING
703
WARNING
Hook the indoor unit to the wall
hook bracket (2 positions)
Leveling
method
Tapping screws
(large, accessories)
CAUTION
CAUTION
Unit: mm
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