SUPPLEMENT
3-26. Mounting
(1) To install the indoor unit, mount the indoor unit onto the 3
tabs on the upper part of the rear plate.
(2) Hold down the air discharge outlet and press the lower part
of the indoor unit until it clicks to securely fasten to the 2
tabs on the lower part of the rear plate. (Fig. 3-92)
N OTE
For tubing, choose either the right or left tubing direction and
follow the steps below. Also, extend the support on the back of
the indoor unit as a stand to make your work easier. (Fig. 3-93)
■ Right-side tubing
(1) Shape the refrigerant tubing so that it can easily go into the
wall hole. (Fig. 3-94)
(2) Push the wiring, refrigerant tubing, and drain hose through
the hole in the wall. Adjust the indoor unit so it is securely
seated on the rear panel. (Fig. 3-95)
(3) 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. The drain hose should come straight down
the wall to a point where water runoff won't stain the wall.
(4) Connect the refrigerant tubing to the outdoor unit. (After
performing a leak test on the connecting part, insulate it
with the tubing insulation. (Fig. 3-96)).
(5) Assemble the refrigerant tubing, drain hose, and conduit
(including inter-unit wiring) as shown in Fig. 3-97.
Refrigerant tubing
Flare
insulation
Fig. 3-96
Conduit
Drain hose
Inter-unit wiring
Fig. 3-97
Push
Fig. 3-92
Rear panel
Fig. 3-93
Rear panel
Cover
Refrigerant
tubing
Inter-unit
wiring
Drain hose
Fig. 3-94
Fig. 3-95
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■ Left-side tubing
(1) Lead the tubing and drain hose through the wall, allowing
sufficient length for connection. Then bend the tubing using
a tube bender to make the attachment. (Fig. 3-98)
(2) Switch the drain hose and drain cap.
Switching drain hose and drain cap
(a) Locate the drain hose and the drain cap. (Fig. 3-99)
(b) Remove the screw fastening the drain hose on the
right side, and pull out the drain hose to remove it.
(Fig. 3-99)
(c) Apply moderate force to pull off the drain cap on the
left side. (If you cannot pull it off by hand, use a long-
nose pliers.)
(d) Reattach the drain hose to the left side and the drain
cap to the right side. (Fig. 3-100)
Drain hose
Slide the drain hose fully onto the drain pan outlet. (It will
be easy to slide when water is added.) Check that the
screw holes in the drain bracket and the drain pan outlet
are aligned and securely in contact, then fasten them with
the screw. (After attaching the drain hose, check that it is
attached securely.) (Fig. 3-101)
Drain cap
Use a Phillips head screwdriver to push the drain cap in
firmly. (If it is difficult to push in, wet the cap with water
first.)
(3) Install the indoor unit on the rear panel.
(4) Connect the tubing and wiring led inside from outdoors.
(5) After completing a leak test, bundle the tubing together
with armoring tape and store it inside the tubing storage
area at the back of the indoor unit and hold it with clamps.
(Figs. 3-100 and 3-102)
Rear panel
Hole in wall
Bent part
Narrow tube
Wide tube
Fig. 3-98
Drain cap
Clamp
Drain hose
Fig. 3-99
Drain hose
Clamp
Drain cap
Fig. 3-100
Drain pan outlet
Drain bracket
Screw hole
Drain hose
Screw
Drain hose
Drain bracket
Screw
Fig. 3-101
Refrigerant tubing
Inter-unit wiring
Conduit
Fig. 3-102
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