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 insula-
tion material (obtainable at a store) around it.
2-1. FIXING OF INSTALLATION PLATE
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in other holes.
• When the knockout is removed, apply vinyl tape to the knockout edges to prevent damag-
ing the wires.
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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).
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.
3) Pass indoor/outdoor unit connecting wire (A) from the back of the indoor unit and process
the end of the wire.
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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
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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.
2. INDOOR UNIT INSTALLATION
Rear, right, or downward piping
1) Put the refrigerant piping and the drain hose together, then
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2) Insert the piping and the drain hose into the wall hole sleeve
(C), and hook the upper part of the indoor unit on the instal-
lation plate (1).
3) Check if the indoor unit is hooked securely on the installation plate (1) by moving the
unit to left and right.
4) Thrust the lower part of the indoor unit into the installation plate (1).
Drain Piping
• If the extension drain hose has to pass through a room, be sure to wrap it with commer-
cially sold insulation.
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• If the drain hose provided with the indoor unit is too short, connect it with drain hose (I)
that should be provided at your site. (Fig. 2)
• When connecting the drain hose to the hard vinyl chloride pipe, be sure to insert it securely
into the pipe. (Fig. 3)
Do not make drain piping as shown below.
Do not raise
Accumulated
drain water
Air
Waving
Water
leakage
Water
leakage
Water
leakage
Tip of drain
hose dipped
in water
Ditch
At least
50 mm
gap
Downward
slope
Drain
hose
Soft hose
I.D. 15 mm
Drain hose
Hard vinyl chloride
pipe I.D. 30 mm
Insert
securely
Different
diameter joint
70 cm
or more
Fig. 1
Fig. 2
Fig. 3
• 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
the wires.
• Be sure to attach each screw to its corre-
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 genera-
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Wall
Outdoor
side
ø65 mm
5-7 mm
Installation plate (1)
Center of
ø65 mm hole
111
mm
or more
101
mm
or more
60
mm or more/
150
mm or more for left/left rear
piping (using spacer)
Ceiling
Wall
Wall
Fixing
screw (2)
100 mm
Level
* Same for left hole.
Lead wire
15 mm
35 mm
Fixing screw
VA clamp
Indoor/outdoor unit
connecting wire (A)
Indoor terminal block
Indoor/outdoor
unit connecting
wire (A)
Outdoor terminal block
Earth wire
(green/yellow)
S1 S2 S3
S1 S2 S3
Felt tape (4)
Piping tape (G)
Cut off in case of
left piping.
Drain cap
Drain cap
Drain hose
Drain cap
Drain hose
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
1) Put the refrigerant piping and the drain hose together,
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Felt tape (4) overlap width should be 1/3 the tape width.
Use a bandage stopper at the end of felt tape (4).
2) Pull out the drain cap at the rear right of the indoor unit.
(Fig. 1)
• Hold the convex section at the end and pull the drain
cap.
3) Pull out the drain hose at the rear left of the indoor unit.
(Fig. 2)
• Hold the claw marked by the arrows and pull out the
drain hose forward.
4) Put the drain cap into the section to which the drain hose
is to be attached at the rear of the indoor unit. (Fig. 3)
• Insert not sharp-edged tools such as screwdrivers into
the hole at the end of the cap and insert the cap fully
into the drain pan.
5) Insert the drain hose fully into the drain pan at the rear
right of the indoor unit. (Fig. 4)
• Check if the hose is hooked securely to the projection
of its inserting part at the drain pan.
6) Insert the drain hose into wall hole sleeve (C), and hook
the upper part of indoor unit on installation plate (1).
Then, move the indoor unit completely to the left in order
to make placing the piping in the back space of the unit
easier.
7) Cut out a piece of cardboard from the shipping box, roll
it up, hook it onto the back rib, and use it as a spacer to
lift the indoor unit. (Fig. 5)
8) Connect the refrigerant piping with the extension pipe
(B).
9) Thrust the lower part of the indoor unit into the installation
plate (1).
Left or left-rear piping
Note:
Be sure to reattach the drain hose
and the drain cap in case of left or
left-rear piping.
Otherwise, it could cause drops of
water to drip down from the drain
hose.
Liquid pipe
Gas pipe
Felt tape (4)
Indoor/outdoor unit
connecting wire (A)
Piping tape (G)
Insert the
scale. *
Align the
scale with
the line. *
