En-5
CAUTION
• Do not install the outdoor unit in two-stage where the drain water could freeze.
Otherwise the drainage from the upper unit may form ice and cause a malfunction of
the lower unit.
• In the area with heavy snowfall, if the intake and outlet of outdoor unit is blocked with
snow, it might become dif
fi
cult to get warm and it is likely to cause of the breakdown.
Please construct a canopy or baf
fl
e board (local con
fi
gured).
2 in (50 mm)
or more
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
snow is common to the region.
3.4. Drain installation *
* : Excluding the cold region model.
CAUTION
When the outdoor temperature is 32°F (0°C) or less, do not use the accessory drain
pipe. If the drain pipe are used, the drain water in the pipe may freeze in extreme cold
weather. (Reverse cycle model only)
Since the drain water
fl
ows out of the
outdoor unit during heating operation,
install the drain pipe and connect it to a
commercial 5/8 in (16 mm) hose.
When installing the drain pipe, plug all the
holes other than the drain pipe mounting
hole in the bottom of the outdoor unit with
putty so there is no water leakage.
Base of the outdoor unit
Drain pipe
Drain pipe mounting hole
[ Unit: in (mm) ]
AIR
Drain cap × 5
(accessories)
Drain pipe
(accessories)
9-15/16 (252)
15-11/16 (399)
3.2.3. Outdoor units installation multi-row
[ Unit: in (mm) ]
(1) Single parallel unit arrangement
4 (100) or more
8 (200) or more
20 (500) or more
40 (1,000) or more
(2) Multiple parallel unit arrangement
8 (200) or more
16 (400) or more
40 (1,000) or more
10 (250) or more
80 (2,000) or more
10 (250) or more
40 (1,000) or more
8 (200) or more
8 (200) or more
10 (250) or more
CAUTION
Do not install the outdoor unit in two-stage where the drain water could freeze.
Otherwise the drainage from the upper unit may form ice and cause a malfunction of
the lower unit.
NOTES:
• If the space is larger than stated above, the condition will be the same as when there is
no obstacle.
• When installing the outdoor unit, be sure to open the front and left side to obtain better
operation ef
fi
ciency.
3.3. Mounting the unit
• Install 4 anchor bolts at the locations indicated with arrows in the
fi
gure.
• 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 2 in (50 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
connection pipes.
• Secure the unit to a solid block using foundation bolts. (Use 4 sets of commercially
available M10 bolts, nuts, and washers.)
• The bolts should protrude 1 in (20 mm). (Refer to the
fi
gure.)
• If overturning prevention is required, purchase the necessary commercially available
items.
[ Unit: in (mm) ]
22-13/16 (580)
13 (330)
Bolt
Nut
Washer
1 (20)
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11/19/2019 9:02:48 AM
