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1-4. INSTALLATION DIAGRAM
ACCESSORIES
Check the following parts before installation.
<Indoor unit>
(1) Installation plate
Installation plate fixing screw
(2)
4 × 25 mm
(3) Remote controller holder
Fixing screw for (3) 3.5 × 16 mm
(4)
(Black)
(5) Battery (AAA) for (6)
(6) Wireless remote controller
Felt tape
(7)
(For left or left-rear piping)
(8) Soft dry cloth (VEB type only)
<Outdoor unit>
(9) Drain socket
PARTS TO BE PROVIDED
AT YOUR SITE
(A) Indoor/outdoor unit connecting wire*
(B) Extension pipe
(C) Wall hole sleeve
(D) Wall hole cover
(E) Pipe fixing band
(F) Fixing screw for (E) 4 × 20 mm
(G) Piping tape
(H) Putty
Drain hose
(I)
(or soft PVC hose, 15 mm inner
diameter or hard PVC pipe VP16)
(J) Refrigeration oil
(K) Power supply cord*
* Note:
Place indoor/outdoor unit connecting wire (A)
and power supply cord (K) at least 1 m away
from the TV antenna wire.
Units should be installed by licensed contrac-
tor according to local code requirements.
2. INDOOR UNIT INSTALLATION
Protective film covers the front panel of some indoor units. When installing
those indoor units, leave the film on it to prevent scratching until installation
completes.
2-1. FIXING OF INSTALLATION PLATE
• Find a structural material (such as a stud) in the wall and fix installation plate (1) hori-
zontally by tightening the fixing screws (2) firmly.
• To prevent installation plate (1) from vibrating, be sure to install the fixing screws in
the holes indicated in the illustration. For added support, fixing screws may also be
installed in other holes.
• When the knockout is removed, apply vinyl tape to the knockout edges to prevent
damaging the wires.
• When bolts recessed in the concrete wall are to be utilized, secure installation plate (1)
using 11 × 20 · 11 × 26 oval hole (450 mm pitch).
• If the recessed bolt is too long, change it for a shorter one available in the market.
2-2. WALL HOLE DRILLING
1) Determine the wall hole position.
2) Drill a ø65 mm hole. The outdoor side should be
5 to 7 mm lower than the indoor side.
3) Insert wall hole sleeve (C).
Installation plate (1)
Level
107.5
mm
or more
Wall
Fixing screw (2)
2-3. CONNECTING WIRES FOR INDOOR UNIT
You can connect indoor/outdoor lead wire without removing the front panel.
1) Open the front panel.
2) Remove VA clamp.
1
5
1
2
2
1
1
1
1
1
1
1
1
2 to 5
2 to 5
(EF25, 35, 42/EF50)
100/500 mm or more
1
1
1 or 2
1
1
(EF25, 35, 42/EF50)
200/500 mm or more
Appearance of the outdoor unit may differ from some
models.
CAUTION
Wall
ø65 mm
Ceiling
72
mm or more
128
mm or more for left and left
back piping (using spacer)
117.5
or more
100 mm
Insert
Align the
Center of
the
scale with
ø65 mm hole
scale. *
the line. *
* Same for left hole.
Be sure to use wall hole
sleeve (C) to prevent in-
door/outdoor connecting
wire (A) from contacting
metal parts in the wall and
t o p r e v e n t d a m a g e b y
rodents in case the wall is
hollow.
After the leak test, apply
insulating material tightly
so that there is no gap.
When the piping is to be at-
tached to a wall containing
metals (tin plated) or metal
netting, use a chemically
treated wooden piece 20
mm or thicker between the
wall and the piping or wrap
7 to 8 turns of insulation vi-
nyl tape around the piping.
To use existing piping, per-
form COOL operation for
30 minutes and pump down
before removing the old air
conditioner. Remake flare
according to the dimension
for new refrigerant.
The outdoor unit produces condensate during the heating operation.
Select the installation place to ensure to prevent the outdoor unit and/
or the grounds from being wet by drain water or damaged by frozen
drain water.
IMPORTANT NOTES
To comply with the requirements of Australian standard AS/NZS 3000
electrical installations (wiring rules), the electrical wiring required
between the indoor and outdoor units must be installed by a licenced
electrical contractor.
3) Pass indoor/outdoor unit connecting wire (A) from the back of the indoor unit and proc-
ess the end of the wire.
4) Loosen terminal screw, and connect first the earth wire, then indoor/outdoor unit con-
necting wire (A) to the terminal block. Be careful not to make mis-wiring. Fix the wire
to the terminal block securely so that no part of its core is appeared, and no external
force is conveyed to the connecting section of the terminal block.
5) Firmly tighten the terminal screws to prevent them from loosening. After tightening, pull
the wires lightly to confirm that they do not move.
6) Secure indoor/outdoor unit connecting wire (A) and the earth wire with the VA clamp.
Never fail to hook the left claw of the VA clamp. Attach the VA clamp securely.
Terminal block
15 mm
35 mm
5-7 mm
Outdoor
Lead wire
side
• For future servicing, give extra length to the
connecting wires.
• Make earth wire a little longer than others.
(More than 60 mm)
• Do not fold the excess wire, or cram it into
small space. Take caution not to damage
mm
the wires.
• Be sure to attach each screw to its corre-
Wall
spondent terminal when securing the cord
and/or the wire to the terminal block.
Note: Do not place the wires between the
indoor unit and the installation plate (1).
Damaged wire could cause heat generation
or fire.
2-4. PIPE FORMING AND DRAIN PIPING
Pipe Forming
• Place the drain hose below the refrigerant piping.
• Make sure that the drain hose is not heaved or snaked.
• Do not pull the hose when applying the tape.
• When the drain hose passes the room, be sure to wrap
insulation material (obtainable at a store) around it.
Indoor unit
Wall hole
sleeve (C)
Cut off the
extra length.
Outdoor unit installation
150/175
mm
2/4-10 mm × 21 mm slot
Drain piping for outdoor unit
• Provide drain piping before indoor
and outdoor piping connection.
• Connect drain hose (I) I.D.15 mm as
shown in the illustration.
• Make sure to provide drain piping with
a downhill grade for easy drain flow.
Note:
Install the unit horizontally.
Do not use drain socket (9) in cold re-
gions. Drain may freeze and make the
(9)
(I)
fan stop.
Earth wire
(green/yellow)
Indoor/outdoor unit
connecting wire (A)
Wall hole cover (D)
Seal the wall hole
gap with putty (H).
Fix the pipe to wall
with pipe fixing
band (E).
Pipe fixing band
(E)
Fixing screw
(F)
(EF25, 35, 42/EF50)
800/840 mm
500 mm
Air inlet
Air outlet
40 mm
VA clamp
Fixing screw
Indoor/outdoor unit
connecting wire (A)
Indoor terminal block
Outdoor terminal block
Liquid pipe
Gas pipe
Indoor/outdoor unit
connecting wire (A)
Felt tape (7)
Piping tape (G)
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