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3.1. Securing installation and service space
[Fig. 3.1.1] (P.2)
•
Select a blowout direction suited for room shape, installation site and so on.
•
Piping, wiring and maintenance are all done on the bottom and the side. So,
secure the space given above for such work. Also, taking into consideration
serviceability and safety in hanging, secure as large space as possible.
Model name
20 · 25 · 32
A
1060
B
C
D
E
3.2. Split flow duct end connection - fresh
air intake
[Fig. 3.2.1] (P.2)
•
Knockouts are provided at each position as shown in the figure. Use them for
your purposes when installing the unit.
4. Fixing hanging bolts
4.1. Fixing hanging bolts
(Use M10 hanging bolts. The bolts should be procured locally.)
(Give site of suspension strong structure.)
Hanging structure
•
Ceiling: The ceiling structure varies from building to one another. For detailed
information, consult your construction company.
1 Reinforcing the ceiling with additional members (edge beam, etc.) must be
required to keep the ceiling at level and to prevent the ceiling from vibrations.
2 Cut and remove the ceiling members.
3 Reinforce the ceiling members, and add other members for fixing the ceiling
boards.
For wooden construction
•
Use the tie beam (for one story building) or second-floor beam (for two story
building) as strength members.
•
To hang the air-conditioner, use a hard square timber of more than
6 cm if the distance between beams is less than 90 cm and a hard square
timber of more than 9 cm if the distance between beams is less than 180 cm.
[Fig. 4.1.1] (P.2)
A Ceiling board
B Edge beam
C Tie beam
D Square timber for hanging the air conditioner
E Pitch
For reinforced concrete construction
•
As shown in the figure below, fix the hanging bolts, or use square timbers to fix
the hanging bolts.
[Fig. 4.1.2] (P.2)
F Insert: 100 to 150 kg (1 piece) (field supply)
G M10 hanging bolt (field supply)
H Reinforcement
Product Weight (kg)
Model name
20 · 25
32
Body frame
24
25
Panel
7
7
40 · 50
63 · 80
100 · 125
1300
1650
2000
More than 1000
More than 500
Lap: 20
360
40
50
63
80
100 · 125
33.5
35
39
41
8
8
10
10
11.5
A Split flow duct end connection
B Split flow duct end connection (ø200 knockout on both sides)
C Fresh air intake (ø150 knockout)
D Fresh air intake
E To be cut
F 4-ø2.9 mounting hole
G 4-ø2.9 mounting hole
Notes:
•
Affixed on the back surface of each split flow duct end connection is
insulating material. Use a cutter knife to cut the insulating material along
the end connection.
•
To adjust the fresh air intake capacity, cut the two places as shown in the
figure at right, and rotate the intake.
3.3. Combining indoor units with outdoor
units
For combining indoor units with outdoor units, refer to the outdoor unit installation
manual.
4.2. Ceiling hole and hanging bolt positions
•
Use the gage supplied with the panel to fix hanging bolts so that the unit body
and ceiling hole are positioned in place as shown in the figure below. For how
to use the gage, refer to the instruction manual supplied with the panel.
Notes:
•
The gage may expand or shrink with changes in the temperature and
humidity. First be sure to check the product dimensions, and then use
the gage.
•
The ceiling hole is adjustable as shown in the figure below. Align the
centers of both ceiling hole and unit body so that the unit body is not
biased to the ceiling hole and that the gaps between the ceiling hole
edges and the unit body's external dimensions come to be identical.
•
Use M10 hanging bolts (for all bolts). (field supply)
•
Each hanging bolt must extrude Cmm from the ceiling. It is possible to slide the
unit body 15 mm max. within part of the heights of the unit body and decorative
panel in order to make fine installation adjustments to the finished ceiling sur-
face. Sliding the unit body and incorporating a high-performance filter requires
the dimensions given in the figure below. To this, attach nuts which will fix a
hanging bracket as shown in the figure.
[Fig. 4.2.1] (P.2)
A Nut
B Washer (supplied with the unit body)
C Hanging bolt ø10 (M10 screw)
D Ceiling hole dimensions
F Hanging bolt
H Hanging bracket
Model name
A
B
α indicates a range of 0 to 15 mm.
•
Installation
For not sliding unit body
example
Dimension C
Dimension D
56
E Hanging bolt pitch
G Finished ceiling surface
20 · 25 · 32
40 · 50
63 · 80
1020
1260
1610
816
1056
1406
For sliding unit body
338
(353 Max.)
143
100 · 125
1960
1756
338+α
143+α
7
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