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10.1.5 Human Activity Sensor Printed Circuit Board
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11. Installation
Instruction
11.1 Select the Best Location
11.1.1 Indoor
Unit
Do not install the unit in excessive oil fume area
such as kitchen, workshop and etc.
There should not be any heat source or steam
near the unit.
There should not be any obstacles blocking the air
circulation.
A place where air circulation in the room is good.
A place where drainage can be easily done.
A place where noise prevention is taken into
consideration.
Do not install the unit near the door way.
Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
Recommended installation height for indoor unit
shall be at least 2.5 m.
11.1.2 Outdoor
Unit
If an awning is built over the unit to prevent direct
sunlight or rain, be careful that heat radiation from
the condenser is not obstructed.
the condenser is not obstructed.
There should not be any animal or plant which
could be affected by hot air discharged.
Keep the spaces indicated by arrows from wall,
ceiling, fence or other obstacles.
Do not place any obstacles which may cause a
short circuit of the discharged air.
If piping length is over the [piping length for
additional gas], additional refrigerant should be
added as shown in the table.
added as shown in the table.
Piping size
Model
Horse
Power
(HP) Gas Liquid
Std.
Length
(m)
Max
Eleva-
tion (m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Addi-
tional
tional
Refri-
gerant
(g/m)
Piping
Length
for add.
gas (m)
gas (m)
W7*** 3/4HP
5
3
10
20
7.5
W9*** 1.0HP
9.52
mm
(3/8”)
5 3
10
20
7.5
W12*** 1.5HP
7.5
5 3
15
20
7.5
W18*** 2.0HP
12.7
mm
(1/2”)
20 3 25
20
7.5
W24*** 2.5HP
15.88
mm
(5/8”)
6.35
mm
(1/4”)
5
20 3 25
30
7.5
Example: For W7***
If the unit is installed at 10 m distance, the quantity of
additional refrigerant should be 50 g .... (10-7.5) m x
20 g/m = 50 g
If the unit is installed at 10 m distance, the quantity of
additional refrigerant should be 50 g .... (10-7.5) m x
20 g/m = 50 g
11.1.3 Indoor/Outdoor Unit Installation
Diagram
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11.2 Indoor Unit
11.2.1 How to Fix Installation Plate
The mounting wall shall be strong and solid enough to prevent it from the vibration.
Dimension
Model
1 2 3 4 5 6
W7***, W9***, W12***
485 mm
82 mm
165 mm
158 mm
43 mm
95 mm
W18***, W24***
585 mm
82 mm
165 mm
158 mm
169 mm
219 mm
The center of installation plate should be at more than 1 at right and left of the wall.
The distance from installation plate edge to ceiling should more than 2.
From installation plate left edge to unit’s left side is 3.
From installation plate right edge to unit’s right is 4.
B
: For left side piping, piping connection for liquid should be about 5 from this line.
: For left side piping, piping connection for gas should be about 6 from this line.
1 Mount the installation plate on the wall with 5 screws or more (at least 5 screws).
(If mounting the unit on the concrete wall, consider using anchor bolts.)
o Always mount the installation plate horizontally by aligning the marking-off line with the thread and using
a level gauge.
2 Drill the piping plate hole with ø70 mm hole-core drill.
o
Putting measuring tape at position as shown in the diagram above.
The hole center is obtained by measuring the distance namely 128 mm for left and right hole
respectively. Another method is intersection point of arrow mark extension.
The meeting point of the extension arrow mark is the hole center position.
The hole center is obtained by measuring the distance namely 128 mm for left and right hole
respectively. Another method is intersection point of arrow mark extension.
The meeting point of the extension arrow mark is the hole center position.
o
Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor
side. (refer to step 3)
side. (refer to step 3)
11.2.2 To Drill a Hole in the Wall and
Install a Sleeve of Piping
1 Insert the piping sleeve to the hole.
2 Fix the bushing to the sleeve.
3 Cut the sleeve until it extrudes about 15 mm
2 Fix the bushing to the sleeve.
3 Cut the sleeve until it extrudes about 15 mm
from the wall.
CAUTION
When the wall is hollow, please be sure to use
the sleeve for tube assembly to prevent dangers
the sleeve for tube assembly to prevent dangers
caused by mice biting the connection cable.
4 Finish by sealing the sleeve with putty or
caulking compound at the final stage.
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11.2.3 Indoor Unit Installation
11.2.3.1 For the Right Rear Piping
11.2.3.2 For the Right and Right Bottom
Piping
11.2.3.3 For the Embedded Piping
(This can be used for left rear piping and bottom
piping also.)
piping also.)
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