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2. Installation location
Refer to the outdoor unit installation manual.
3. Installing the indoor unit
3.1. Check the indoor unit accessories (Fig. 3-1)
The indoor unit should be supplied with the following accessories.
Accessory name
Q’ty
1
Installation template
1
2
Washers (with insulation)
4
Washers (without insulation)
4
3
Pipe cover (for refrigerant piping joint)
Small diameter
1
Large diameter
1
4
Band
8
5
Screw with washer (M5
×
25) for mounting grille
4
6
Drain socket
1
7
Insulation
1
4
3
6
5
7
Fig. 3-1
1
3.2. Ceiling openings and suspension bolt installation
locations (Fig. 3-2)
• Using the installation template (top of the package) and the gauge (supplied as an
accessory with the grille), make an opening in the ceiling so that the main unit can
be installed as shown in the diagram. (The method for using the template and the
gauge are shown.)
* Before using, check the dimensions of template and gauge, because they
change due to fluctuations of temperature and humidity.
* The dimensions of ceiling opening can be regulated within the range shown in
following diagram; so center the main unit against the opening of ceiling, en-
suring that the respective opposite sides on all sides of the clearance between
them becomes identical.
• Use M10 (3/8”) suspension bolts.
* Suspension bolts are to be procured at the field.
• Install securely, ensuring that there is no clearance between the ceiling panel &
grille, and between the main unit & grille.
A
Outer side of main unit
B
Bolt pitch
C
Ceiling opening
D
Outer side of Grille
E
Grille
F
Ceiling
G
Multi function casement (option)
H
Entire periphery
*
Note that the space between ceiling panel of the unit and ceiling slab and etc must be 10 to
15 mm, 25/64-19/32 inch.
(mm, inch)
Models
C
D
A12, A18, A24, A30
241, 9-1/2”
258, 10-3/16”
A36, A42
281, 11-1/16”
298, 11-3/4”
3.3. Refrigerant and drainage piping locations of indoor
unit
The figure marked with * in the drawing represent the dimensions of the main unit
excluding those of the optional multi function casement. (Fig. 3-3)
A
Drain pipe
B
Ceiling
C
Grille
D
Refrigerant pipe (liquid)
E
Refrigerant pipe (gas)
F
Water supply inlet
G
Main unit
• When the optional multi-functional casement is installed, add 135 mm, 5-5/16 inch
to the dimensions marked on the figure.
7-9/16
6-1/4
6-1/4
3-27/32
6-1/4
33-27/32 to 35-13/16
25/32 to 1-25/32
25/32 to 1-25/32
25/32 to 1-25/32
31-7/8
37-3/8
33-1/16
7-3/4
23-13/16
33-1/16
37-3/8
33-27/32 to 35-13/16
A
B
C
D
C
B
D
A
6-1/4
25/32 to 1-25/32
5-5/16
F
G
E
11/16
+3/16
0
11/16
+3/16
0
4-1/8
1-3/16
C
D
Min. 40
Min. 20
F
H
E
1-15/16 to 2-3/4
Fig. 3-2
2
(mm, inch)
Models
A
A12, A18, A24, A30 80, 3-5/32”
A36, A42
84, 3-5/16”
5/8
3-1/2
A
7-9/16
G
A
∗
6-11/16
∗
5-1/2
∗
7-15/32
2-3/8
11-1/4
14-23/32
A
F
D
E
B
C
Fig. 3-3
(inch)
Caution:
Install the indoor unit at least 2.4 m, 8 ft above floor or grade level.
(inch)
BG79U795H01_en.pm6
05.12.1, 9:48 AM
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