4
3. Installing the indoor unit
Left and left rear piping (Fig. 3-9)
4. Drain hose replacement → See 5. Drainage piping work.
Be sure to replace the drain hose and the drain cap for the left and rear left
piping. Dripping may occur if you forget to install or fail to replace these parts.
C
Drain cap
1) Be careful that the drain hose is not raised, and that contact is not made with
the indoor unit box body.
2) Securely wrap the felt tape
3
starting from the base. (Overlap the felt tape at
one-half of the tape width.)
3) Fasten the end portion of the felt tape
3
with vinyl tape.
D
Cut off for left piping.
Fig. 3-9
C
D
1)
3)
2)
Fig. 3-10
Fig. 3-11
Fig. 3-12
B
A
C
D
A
C
B
C
A
B
3.5. Mounting the indoor unit
1. Affix the mount board
1
to the wall.
2. Hang the indoor unit on the hook positioned on the upper part of the mount
board.
Lower piping (Fig. 3-10)
3. While inserting the refrigerant piping and drain hose into the wall penetration
hole (penetration sleeve), hang the top of the indoor unit to the mount board
1
.
4. Move the indoor unit to the left and right, and verify that the indoor unit is hung
securely.
5. Fasten by pushing the bottom part of the indoor unit onto the mount board
1
.
(Fig. 3-11)
* Check that the knobs on the bottom of the indoor unit are securely hooked into
the mount board
1
.
6. After installation, be sure to check that the indoor unit is installed level.
A
Mount board
1
B
Indoor unit
C
Hook
D
Square hole
Left and left rear piping (Fig. 3-12)
3. While inserting the drain hose into the wall penetration hole (penetration sleeve),
hang the top of the indoor unit to the mount board
1
.
Cut part of the shipping box and wrap into a cylindrical form as illustrated in the
diagram. Hook this to the rear surface rib as a spacer, and raise the indoor unit.
4. Connect the refrigerant piping with the site-side refrigerant piping.
5. Fasten by pushing the bottom part of the indoor unit onto the mount board
1
.
* Check that the knobs on the bottom of the indoor unit are securely hooked into
the mount board
1
.
6. After installation, be sure to check that the indoor unit is installed level.
A
Indoor unit
B
Shipping box
C
Spacer (Cut out a piece of card board from shipping box.)
N
ote:
• When the indoor unit cannot be hanged and lifted up with the regular hook
(the dimension of 2.1.
K
(the clearance between the ceiling and the unit) is
75 mm or less), hang the unit on the lower hook for left piping. (Fig. 3-13)
• The lower hook is a temporary hook only for installation. When the
installation is done, be sure to hang the indoor unit on the regular hook.
The indoor unit cannot be operated while it is hanged on the lower hook.
(Fig. 3-13)
A
Regular hook
B
Lower hook for left piping
C
Spacer
D
Fixing screw
2
* When using the lower hook, be sure to screw on the base of the lower hook with
a fixing screw
2
, otherwise the indoor unit will fall.
C
A
B
D
Fig. 3-13
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