Indoor Unit Installation - Mitsubishi Electric MSZ-GE06NA Installation Manual

2. INDOOR UNIT INSTALLATION

2-1. ATTACHING THE INSTALLATION PLATE
• Find a stud in the wall to attach installation plate (1) horizontally on the wall with screws (2).
• To prevent installation plate (1) from vibrating, be sure to install the attachment screws in
the holes indicated in the illustration. For added support, additional screws may also be
installed in other holes.
• When the indoor unit is to be attached to a concrete wall using recessed bolts, secure
installation plate (1) using 7/16 in. x 13/16 in. · 7/16 in. x 1 in. (11 mm × 20 mm · 11 mm
× 26 mm) oval hole (17-3/4 in. [450 mm] pitch).
• If the recessed bolt is too long, change it for a shorter one (field-supplied).
2-2. DRILLING
1) Determine where the holes will be located on the wall.
2) Drill a ø 3 in. (75 mm) hole. The outdoor side should be 6/32 to 9/32 in. (5 to 7 mm)
lower than the indoor side.
3) Insert wall hole sleeve (C).
2-3. CONNECTING WIRES FOR INDOOR UNIT
Note:
When the indoor unit is powered from the outdoor unit, depending on local code, a discon-
nect switch needs to be installed to a power supply circuit.
1) Remove the panel assembly. (Refer to 5-1.)
2) Place the upper part of the indoor unit on the installation plate.
3) Remove corner box and electrical cover.
4) Remove display panel, conduit cover and conduit plate.
5) Attach conduit pipe (for rear piping) / elbow joint (for right, left, or downward piping) to
conduit plate with lock nut. The thread of the installed conduit pipe / elbow joint appear-
ing inside should be less than 3/8 in. (10 mm). (Fig. 1) Elbow joint should appear less
than 1-3/16 in. (30 mm) outside. (Fig. 2)
6) Process the end of ground wire (Fig. 3). Connect it to the ground terminal of electrical
parts box.
7) Process the end of indoor/outdoor unit connecting wire (A) (Fig. 3). Attach it to the
terminal block. Be careful not to make mis-wiring. Attach the wire to the terminal block
securely so that its core cannot be seen, and no external force affects the connecting
section of the terminal block.
8) Firmly tighten the terminal screws. After tightening, verify that the wires are tightly fas-
tened.
9) Reinstall conduit plate, conduit cover and display panel.
10) According to the piping direction, remove the shaded part of the left side of box (Fig. 4)
or corner box (Fig. 5). Reinstall electrical cover, corner box and front panel.
Remark:
* A disconnect switch is
required.
Check the local code.
** Use a ring tongue termi-
nal in order to connect a
ground wire to terminal.
Power supply
208/230 V AC,
1phase 2wires.
60 Hz
Ground
INDOOR UNIT
Grouding
Terminal block
terminal**
Disconnect
switch*
208/230 V AC
1phase, 60 Hz
OUTDOOR UNIT
Grouding terminal**
1-3/8 in.
(35 mm)
Lead
wire
• Make ground wire a little longer than
others. (More than 1-9/16 in. [40 mm])
Bind the line to the center hole.
Installation plate (1)
3-7/8 in.
(100 mm)
or more
Wall
Attachment screw (2)
Electrical cover
Fixing
screw
Display panel
• Connect wires to the appropriate terminals
• For future servicing, leave some slack in the connecting wires.
Conduit plate
19/32 in.
(15 mm)
Remove panel for
piping on left side of
unit
Fig. 3
Ceiling
2-1/8 in. (54 mm) or more
5-1/8 in. (130 mm) or more for left
and left back piping (using spacer)
Level
5-1/8 in.(130 mm)
Insert
Align the plumb
the
line with the
scale. *
mark .
Plumb
Wall
Ø 3 in.
6/32-9/32 in.
(75 mm)
(5-7 mm)
Outdoor side
Grounding
Electrical box
terminal
Conduit cover
Lock nut
Conduit plate
or
Elbow joint
(for right, left, or downward piping)
Less than 3/8 in.
(10 mm)
Lock nut
Conduit pipe or Conduit plate
elbow joint
(for right, left, or downward piping)
Fig. 1
Remove panel for
piping on bottom side
of unit
Box
Remove panel for
piping on bottom left
side of unit
3-3/8 in.
(85 mm)
Fig. 4
4-3/8 in.
(110 mm)
or more
Wall
Align the
Center of
scale with
ø 3 in.
the line. *
(75 mm) hole
* Same for left hole.
Indoor terminal
block
Conduit pipe
(for rear piping)
Less than 1-3/16 in.
(30 mm)
Elbow joint
Fig. 2
Remove panel for piping
on right side of unit
Corner box
2-3/8 in.
(60 mm)
Fig. 5