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3. Fixing the indoor unit
3.1 Floor Installation
1. Drill holes on wall.
2. Push plug into the holes.
(As shown below)
(As shown below)
Wall
Plug
Cabinet
Screw
3
(4.1x32)
Screw
3
(4.1x32)
32mm
Wall
Fixing the base of indoor unit
Fix the base of indoor unit on the floor with 4.1
32mm screws. (Right and left)
×
Be sure to attach screw
the indoor unit from overturn.
Screw
Screw
Case
3
Screw (4.1x32)
Screw (4.1x32)
3
(The plug can be secured diagonally with a screw as shown above.)
3.2 Wall Installation
Direct Mounting On The Wall
Please remove 3 screws and clip
Please remove the screws which fix
which fix the stand and cabinet.
the cabinet and hanger.
(As shown in the figure below)
Please use hidden beams in the wall
to hold the hanger.
20mm
Procedures of Installation and Precautions
Procedures to fix the hanger and indoor unit.
1.Drill holes on wall.
2.Push plug into the holes.
(As shown below)
(As shown below)
Wall
Hanger
Plug
3
Screw
(4.1x32)
9
Screw
(4.0x34)
Wall
32mm
3
Screw
(4.1x32)
3-3 Built-in Installation
If outlet is covered with the lattice door, room temperature may not be controlled
1
properly. Therefore, air outlet must be open as much as possible.
If air deflector of air outlet is adjusted too much upward, room temperature may
2
not be controlled properly due to the heat inside the lattice door. Therefore, the
deflector must be adjusted to nearly horizontal angle.
If signal receiver is covered with the lattice door, signal receiving distance or
3
range (angle) becomes smaller. Therefore, signal receiver must not be covered
with the lattice door.
Only the vertical lattice door may be used. Be sure to use a lattice door with an
4
open area ratio of 75% or more. If another lattice door or one with an open area
ratio of less than 75% is used, maximum performance may not be obtained.
With a built-in installation, it may take more time to reach the set temperature
5
after the unit is switched on.
4. Installation of refrigerating pipes and air removal
4.1
Preparation of pipe
Use a pipe cutter to cut the copper pipe.
CAUTION
Jagged edge will cause leakage.
Point the side to be trimmed downwards during trimming to
prevent copper chips from entering the pipe.
fore flaring, please put on the flare nut.
Please use exclusive tool.
Die
Die
A
Copper pipe
4.2
Pipe connection
Please be careful when bending the copper pipe.
Screw in manually while adjusting the center. After that,
use a torque wrench to tighten the connection.
Gas leakage inspection
Please use gas leakage detector to check
if leakage occurs at connection of flare nut
Small diameter side
as shown on the right.
If gas leakage
Large diameter side
occurs, fur ther
tighten
the
connection to stop
Valve head
cap
leakage.
< S904 :
A
>
Fixing on the wall
Fixing on the hanger
440
3
Screw
(4.1x32)
When fixing the indoor unit above
WARNING
the ground, be sure to fix an L-angle
to prevent
at the bottom to support it.
3
1. Drill holes on floor.
2. Push plug into the holes.
Screw (4.1x32)
3
Floor
Indoor unit
Plug (Procure locally)
CAUTION
The draining of the water container
inside the Indoor unit can be done
from the left. Therefore the hanger
must be fixed horizontally or slightly
tilted towards the side of drain hose.
Otherwise, condensed water may
overflow the water container.
External dimension of
indoor unit
20mm
Hanger
Line
55mm
Drain Hose
Weight
750mm
Screw for Hanger
Please use more
than 6 screws
3. Fix the hanger on wall with 4.1 X
4. Fix the indoor unit on the
32 and 4.0 X 34 screw.
wall with 4.1x32 screw.
(As shown in figure below)
3
Screw
(4.1x32)
9
Screw
(4.0x34)
Horizontal air deflector (Air intake)
Above 150mm
Above
100mm
Horizontal air deflector (Air outlet)
Lattice door
30mm
Air conditioner
Trimming tool
Copper
A (mm) Rigid Flaring Tool
Outer Diameter (ø)
For R410A,R32 tool
6.35 (1/4")
0 – 0.5
9.52 (3/8")
0 – 0.5
12.7 (1/2")
0 – 0.5
Flare nut
Wrench
Torque wrench
Outer diameter
of pipe (ø)
6.35 (1/4")
13.7 – 18.6 (140 – 190)
9.52 (3/8")
34.3 – 44.1 (350 – 450)
12.7 (1/2")
44.1 – 53.9 (450 – 550)
Small diameter side
6.35 (1/4")
19.6 – 24.5 (200 – 250)
9.52 (3/8")
19.6 – 24.5 (200 – 250)
Large diameter side
12.7 (1/2")
29.4 – 34.3 (300 – 350)
V
l a
e v
o c
e r
c
p a
2 1
3 .
–
5. Connection of the connecting cord
(1) Remove the cover of the electric box.
(2) Connect the connecting cords.
(3) Assemble the cover of electric box.
155
ø9 rear fixing
35mm
hole for
anchor bolt or
Connecting cord
10mm
screw of
accessory.
1
2
3
55
10mm
Green + Yellow
70mm
Detail of cutting the connecting cord
THIS APPLIANCE MUST BE
WARNING
EARTHED.
6. Checking of drawing drain hose
(1) Connect the separate drain hose to the drain hose that is attached to the indoor unit.
(2) For keeping the smooth flowing of condensed water the drain hose should be inclined as shown in figure below.
Bad
Bad
Bending
Condensed
upwards
water pond
Please ensure the smooth flow of condensed water of the Indoor unit during installation.
CAUTION
(Carelessness may result in water leakage.)
7. Installation of remote controller
The remote controller can be placed in its holder which is
fixed on wall or beam.
To operate the remote controller at its holder, please ensure
that the unit can receive signal transmitted from the controller
at the place where the holder is to be fixed. The unit will beep
when signal is received from the remote controller. The signal
transmission is weaken by the fluorescent light. Therefore,
during the installation of the remote control holder, please
switch on the light, even during day time, to determine the
Level
mounting location of the holder.
8. Final stage of installation
8.1
Insulation and maintenance of pipe connection
The connected terminals should be completed sealed with heat insulator and then tied
up with rubber strap.
Mark
Please tie the pipe and power line together with vinyl tape as shown in the figure showing
Hole for pipe
the installation of Indoor and Outdoor units. Then fix their position with holders.
To enhance the heat insulation and to prevent water condensation, please cover the
outdoor part of the drain hose and pipe with insulation pipe.
Completely seal any gap with putty.
8.2
Operation test
Please ensure that the air conditioner is in normal operating condition during the operation test.
Explain to your customer the proper operation procedures as described in the user's manual.
If the indoor unit does not operate, check to see that the connections are correct.
CAUTION
Trial run should be conducted on one unit at a time to check for incorrect wiring of connecting cord.
Screw
3
(4.1x32)
Using the claws at the top of front cover to remove and install front cover to the cabinet. Too much force on the
CAUTION
claws may cause breakage when removing or installing the front cover. Please follow the below procedures for
removal and installation of front cover.
1. Remove the front cover
Above 200mm
Latch
Latch
Signal receiver
Screw
Front Panel
1
Push the latch at both sides to open the front panel. Pull out the filter and remove 3 screws.
Upper Louver
Horizontal
Screw
Air Deflector
Screw Cap
3
Take off 2 screw caps at the lower part of
the horizontal air deflector and remove 2
screws. Then leave the upper louver in
open position.
2. Install the front cover
Front Cover Fixing Claws (4 places)
For R22 tool
1.0
1.0
1.0
Upper Louver
1
Set the upper louver in open position.
Torque N·m
(kgf·cm)
How to connect the optional parts
For cable connection to control P.W.B., you need to remove front cover and electrical box cover.
Each connecting location is as below.
Dry contact: CN6
1
H-LINK RAC Adapter: CN7
2
Wired Remote Controller: CN20
3
5 1
7 .
1 (
5 2
–
6 1
) 0
Gas Sensor:
CN33
4
Please check and confirm manuals attached to each optional parts for more connection details.
You can refer to this installation manual how to remove and re-attach the front cover.
Please be careful not to damage lead wires by edge of plate when connecting the optional parts.
3
2
1
Cord band
Earth
Connecting cord
Connection of the connecting cord
(ground)
Securely screw in the connecting cord so that it will not get loose or
disconnect.
Tightening torque reference value: 1.2 to 1.6 N·m (12 to 16 kgf·cm)
Excessive tightening may damage the interior of the cord requiring
replacement.
Bad
Bad
Be sure that the hose is not loosely
Condensed
connected or bent.
water pond
Ditch
The remote controller
must be slide in the remote
controller holder, in the
direction as shown in the
figure, until it hooks at the
lower end of the remote
controller holder.
Removal and installation of front cover
Front Cover
Cabinet
Hold both sides of the lower part of front
4
cover and pull down towards an oblique
direction.
Front Cover
Claw
Cabinet
Front Cover
Fixing Claws
(4 places)
2
Insert the front cover fixing claws
(4 places) to the insertion groove of the
cabinet and put the upper louver through
to the front cover frame.
(H-LINK RAC Adapter, Dry contact, Wired Remote Controller)
WARNING
Leave some space in the connecting cord for
maintenance purpose and be sure to secure it
with the cord band.
Secure the connecting cord
along the coated part of the
wire using the cord band. Do
not exert pressure on the wire
as this may cause overheating
or fire.
Connecting cord
WARNING
Remote Controller
Remote Controller
Holder
Screw (2 pieces)
OUTSIDE
INSIDE
Sleeve of
protection pipe
Putty
Putty
Front Panel
Screw
2
Lift up the front panel and latch the claws
firmly at the lower part of rear of the front
panel.
Then remove 3 screws.
Cabinet
Horizontal
Air Deflector
Lower Flame
3
Put the horizontal air deflector to the
lower part of front cover frame and insert
to the cabinet.
After fixed the front cover, fix back all the
screws in order.
CN20
CN7
CN33
CN6
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