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3-5. How to Install the Indoor Unit
For tubing, choose either the left side or right side
direction.
(1) When routing the tubing and wiring from the left or
right side of the indoor unit, cut out the knock-out
hole from the chassis as necessary. (Fig. 20)
• Cut out knock-out hole 1 when routing the wiring
only.
• Cut out knock-out hole 1 and knock-out hole 2
when routing both the wiring and tubing.
(2) Take out the tubing from body case, wrap the tub-
ing, electric wire and water pipe (if local codes
allow) with tape and push them through the tubing
hole. (Fig. 21)
(3) Hang the mounting slots of the indoor unit on the
upper tabs of the rear panel and check that it is
securely seated on the rear panel. (Fig. 22)
(4) Carefully bend the tubing (if necessary) to run
along the wall in the direction of the outdoor unit
and then tape as far as the fittings.
(See Caution on page 12). The drain hose should
come straight down the wall to a point where water
run-off won't stain the wall.
(5) Connect the refrigerant tubing to the outdoor unit.
(After performing a leak test on the connecting
part, insulate it with tubing insulation. (Fig. 21)
Also, refer to page 12, (connecting tubing between
indoor and outdoor units).
NOTE
For stable operation of the air conditioner, do not
install wall-mounted type indoor units less than 1.5 m
from the floor level. (Fig. 23)
WARNING
Risk of Electric Shock
Do not supply power to
the system or operate it
until all tubing and
wiring to the outside
unit are completed.
Wide tube
Wide tube
insulation
Finally wrap
it with tape
Right
Right rear
Attachment hook
Rear
panel
9
Knock-out hole 2
Knock-out hole 1
Fig. 20
External connection
electric wire
Narrow tube
Narrow tube
insulation
Water drainage
pipe
Left
Left rear
Fig. 21
Rear panel
Fig. 22
Wall
Indoor unit
Minimum height
from floor level
1.5 m
Floor level
Fig. 23
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