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3.3.1 Single outdoor unit installation
When the upward area is open
Unit: mm
(1) Obstacles at rear only
150
(3) Obstacles at front only
1000 or more
When an obstruction is present also in the upward area
(1) Obstacles at rear and above only
1000
150
Max. 500
3.3.2 Multiple outdoor unit installation
• Provide at least 100 mm of space between the outdoor units if multiple units are
installed.
• When routing the piping from the side of an outdoor unit, provide space for the piping.
When the upward area is open
Unit: mm
(1) Obstacles at rear only
300
(3) Obstacles at front and rear only
When an obstruction is present also in the upward area
(1) Obstacles at rear and above only
• Up to 3 units can be installed side by side.
• When 4 units or more are arranged in a line, provide the space as shown below.
1500
(2) Obstacles at rear and sides only
200
300
200
(4) Obstacles at front and rear only
150
1000 or more
Unit: mm
(2) Obstacles at rear, sides, and above only
1000
150
150
Max. 500
150
(2) Obstacles at front only
1500 or more
500
1500 or more
Unit: mm
1500
500
Max. 300
3.3.3 Outdoor units installation in multi row
* The following settings are not recommended in case of cooling by a low outside tem-
perature. Unit: mm
(1) Single parallel unit arrangement
150
2000 or
more
600
1000
3.4. Transporting the unit
Do not touch the fins. Otherwise, personal injury could result.
CAUTION
When carrying the unit, hold the
handles on the right and left sides and
be careful.
If the outdoor unit is carried from
the bottom, hands or fingers may be
pinched.
Be sure to hold the handles on the sides
of the unit. Otherwise, holding the suc-
tion grille on the sides of the unit may
cause deformation.
3.5. Installing the unit
• Please install the outdoor unit without slant. (within 0.3 degrees)
• Install 4 anchor bolts at the locations indicated with arrows in the figure.
• To reduce vibration, do not install the unit directly on the ground. Install it on a secure
base (such as concrete blocks).
• The foundation shall support the legs of the unit and have a width of 80 mm or more.
• Depending on the installation conditions, the outdoor unit may spread its vibration during
operation, which may cause noise and vibration. Therefore, attach damping materials
(such as damping pads) to the outdoor unit during installation.
• Install the foundation, making sure that there is enough space for installing the connec-
tion pipes.
• Secure the unit to a solid block using foundation bolts. (Use 4 sets of commercially avail-
able M10 to M12 bolts, nuts, and washers.)
• The bolts should protrude 20 mm. (Refer to the figure.)
• If overturning prevention is required, purchase the necessary commercially available
items.
166
650
50
AIR
• Do not install directly on the ground, this may result in equipment failure.
• The drain water is discharged from the bottom of the equipment. Construct a drain ditch
around the base and discharge the drain water properly.
• Provide ample space for ice buildup from condensate between the bottom of the unit and
the flat surface on which it is mounted. Otherwise, there is risk that the drainage water
will freeze between the device and the surface, disabling drainage.
If the unit is installed in a region that is exposed to
high winds, freezing conditions, freezing rain, snow
fall or heavy snow accumulation, take appropriate
measures to protect it from those elements.
To ensure stable operation, the outdoor unit must be
installed on a raised stand or rack, at or above the
anticipated snow depth for the region.
The installation of snow hoods and drift prevention
fencing is recommended when blowing and drifting
Base
snow is common to the region.
(2) Multiple parallel unit arrangement
3000 or
more
600
1500
WARNING
Handle
Handle
Suction grille
154
50
Bolt
Nut
CAUTION
500
Unit: mm
Base
En-4
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