En-4
5.3. Cutting a hole in the wall for connection pipes
(1) Cut a 3-1/8 in. (80 mm) diameter hole in the wall at the position shown in the fi gure.
(2) When cutting the wall hole at the inside of the wall hook bracket, cut the hole to a point
of intersection of center marks.
When cutting the wall hole at the outside of the wall hook bracket, cut the hole at a
point of 3/8 in. (10 mm) below.
(3) Cut the hole so that the outside end is lower [3/16 to 3/8 in. (5 to 10 mm)] than the in-
side end.
(4) Always align the center of the wall hole. If misaligned, water leakage will occur.
(5) 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.
(6) For left piping and right piping, cut the hole a little lower so that drain water will fl ow
freely.
3/8 in. (10 mm) or
more lower
3/8 in. (10 mm) or
more lower
3-1/8 in. (80 mm)
dia. hole
Wall hook bracket
Center mark
Fasten with
vinyl tape
Wall cap*
Wall pipe*
(Inside)
Wall
(Outside)
*Locally purchased
3/16 to 3/8 in. (5 to 10 mm)
WARNING
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
discharge.
5.4. Installing the wall hook bracket
(1) Install the wall hook bracket so that it is correctly positioned horizontally and vertically.
If the wall hook bracket is tiled, water will drip to the fl oor.
(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 6 or more screws through the holes near
the outer edge of the bracket.
• Check that there is no rattle at the wall hook bracket.
Wall hook bracket
Tapping screw (large)
(Quantity: 8)
CAUTION
Install the wall-hook bracket both horizontally and vertically aligned. Misaligned installa-
tion may cause water leakage.
5.5. Forming the drain hose and pipe
[Rear piping, Right piping, Bottom piping]
• Install the indoor unit piping in the direction of the wall hole and bind the drain hose
and pipe together with vinyl tape.
• Install the piping so that the drain hose is at the bottom.
• Wrap the pipes of the indoor unit that are visible from the outside with decorative tape.
[For Left rear piping, Left piping]
Interchange the drain cap and the drain hose.
CAUTION
•
Insert drain hose and drain cap securely. Drain should slope down to avoid water
leakage.
• When inserting, be sure not to attach any material besides water. If any other
material is attached, it will cause deterioration and water leakage.
• After removing the drain hose, be sure not to forget mounting the drain cap.
• Be sure to fi x the drain hose with tape to the bottom of piping.
• Prevent drain water freezing under low temperature environment.
When installing indoor unit’s drain hose outdoors, necessary measure for frost
protection should be taken to prevent drain water freezing.
Under low temperature environment (when outdoor temperature under 32 °F
(0 °C)), after cooling operation is executed, water in the drain hose could be frozen.
Once drain water is frozen, the drain hose will be blocked and water leakage may
result at the indoor unit.
Installation method of Drain cap
Right piping
Bind with vinyl tape
Indoor unit drain hose
(bottom)
Pipe (top)
Rear piping
Bottom
piping
Drain cap
Indoor unit
drain hose
Remove the drain cap by
pulling at the projection at
the end of the cap with pli-
ers, etc.
For left outlet piping, cut
off the piping outlet cutting
groove with a hacksaw.
CAUTION
Insert the drain hose and drain cap into the drain port, making sure that it comes
in contact with the back of the drain port, and then mount it. If the drain hose is not
connected properly, leaking will occur.
• Attach the Drain hose insulation to the drain hose.
Drain hose insulation
Drain hose
• For left piping and left rear piping, align the marks on the wall hook bracket and shape
the connection pipe.
• Bend the connection piping at a bend radius of 3-15/16 in. (100 mm) or more and install
no more than 1-3/8 in. (35 mm) from the wall.
• After passing the indoor piping and drain hose through the wall hole, hang the indoor unit
on the hooks at the top and bottom of the wall hook bracket.
[Installing the indoor unit]
• Hang the indoor unit from the hooks at the top of the wall hook bracket.
• Insert the spacer, etc. between the indoor unit and the wall hook bracket and separate
the bottom of the indoor unit from the wall.
Indoor unit
Wall hook bracket
(Spacer)
Wall hook
bracket
Alignment marks
Connection pipes
Large pipe
Top hooks
Indoor
unit
(Fitting) Bottom hooks
Wall hook
bracket
Small pipe
After hooking the indoor unit to the top hook, hook the fi ttings of the indoor unit to the 2
bottom hooks while lowering the unit and pushing it against the wall.
9318739237_IM.indb 49318739237_IM.indb 4 11/30/2016 9:59:20 AM11/30/2016 9:59:20 AM
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