• Make earth wire a little longer
than others. (More than 60 mm)
• For future servicing, give extra
length to the connecting wires.
3. OUTDOOR UNIT INSTALLATION
3-1. CONNECTING WIRES FOR OUTDOOR UNIT
1) Open the service panel.
2) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (A) from the
indoor unit correctly on 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 ex-
ternal force is conveyed to the connecting section of the terminal block.
3) Firmly tighten the terminal screws to prevent them from loosening. After tightening,
pull the wires lightly to confirm that they do not move.
4) Connect power supply cord (K).
5) Fix indoor/outdoor unit connecting wire (A) and power supply cord (K) with the cord
clamp.
6) Close the service panel securely.
3-2. FLARING WORK
1) Cut the copper pipe correctly with pipe cutter.
(Fig. 1, 2)
2) Completely remove all burrs from the cut cross sec-
tion of pipe. (Fig. 3)
• Put the end of the copper pipe to downward direc-
tion as you remove burrs in order to avoid to let
burrs drop in the piping.
3) Remove flare nuts attached to indoor and outdoor
units, then put them on pipe having completed burr
removal. (Not possible to put them on after flaring
work.)
4) Flaring work (Fig. 4, 5). Firmly hold copper pipe in
the dimension shown in the table. Select
A mm from the table according to the tool you use.
Copper
pipe
Good
Tilted Uneven Burred
No good
Fig. 1
Fig. 2
Lead wire
Terminal block
Cord clamp
Power supply
cord (K)
Indoor/outdoor unit
connecting wire (A)
Power supply cord (K)
35 mm
15 mm
Burr
Copper pipe
Spare reamer
Pipe cutter
Clutch type
Flaring tool
Fig. 4
Fig. 3
Wing nut type
Pipe diameter
(mm)
Nut
(mm)
A (mm)
Tightening torque
Clutch type
tool
for R410A
Clutch type
tool
for R22
Wing nut
type tool
for R22
N•m
kgf•cm
ø 6.35 (1/4”)
17
0 to 0.5
1.0 to 1.5
1.5 to 2.0
13.7 to 17.7 140 to 180
ø 9.52 (3/8”)
22
34.3 to 41.2 350 to 420
ø12.7 (1/2”)
26
2.0 to 2.5
49.0 to 56.4 500 to 575
ø15.88 (5/8”)
29
73.5 to 78.4 750 to 800
Smooth all
around
Even length
all around
Inside is shin-
ing without any
scratches.
Flare nut
Die
Fig. 5
Fig. 6
Copper pipe
Do not make drain piping as shown below.
Accumulated
drain water
Air
Waving
Water
leakage
Do not raise
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
2-8. DRAIN PIPING
• If the extension drain hose has to pass through a room, be sure to wrap it with com-
mercially sold insulation.
• The drain hose should point downward for easy drain flow. (Fig. 1)
• 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)
200
50
Fig. 4
Fig. 5
The catch should be
located on the under-
side of the hose.
Projection
* This projection is located on the
underside of the hose fitting.
Make sure to hook the catch.
Drain hose
Pull the hose to
confirm it is con-
nected securely.
2-9. FRONT PANEL INSTALLATION
1) Open the horizontal vane for the upper air outlet.
2) Fit the front panel onto the indoor unit from the front, and then push the upper and
lower areas that are marked with arrows.
3) Push the areas below the upper air outlet and the areas above and below the lower air
outlet that are marked with arrows.
4) After installing the front panel, install the 2 screws below the upper air outlet.
5) Check
• Compare the flared work with Fig. 6.
• If flare is noted to be defective, cut off the flared section and do flaring work again.
The Drain hose is removed at installation.
• When routing the drain piping, make sure that the drain hose (1) is routed as shown.
(Fig. 4)
• Insert the drain hose all the way to the base of the drain pan (end connection). (Fig. 5)
Make sure that the catch of the drain hose is securely hooked onto the projection
on the hose fitting of the drain pan.
• After connecting the drain hose, be sure to pull the hose to confirm that it is con-
nected securely.
JG79A145H05
