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When an obstruction in the upper space (Unit : mm)
(1) Obstacles at rear and above
• 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.
Max. 300
250 or more
1,500 or more
■ Outdoor units installation multi-row
(1) Single parallel unit arrangement
(2) Multiple parallel unit arrangement
250 or more
1,000 or more
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 efficiency.
3.2. Mounting the unit
• 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 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 20 mm. (Refer to the figure.)
• If overturning prevention is required, purchase the necessary commercially available
items.
En-6
1,500 or more
250 or more
200 or more
(Unit : mm)
100 or more
1,000 or more
200 or more
500 or more
200 or more
2,000 or more
400 or more
1,000 or more
200 or more
200 or more
(Unit : mm)
A
Dimensions
A
09~22 model
580
24 model
600
• 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.
• When the outdoor temperature is 0 °C or less, do not use the accessory drain pipe.
If the drain pipe is used, the drain water in the pipe may freeze in extremely cold
climate.
• 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
50 mm
fencing is recommended when blowing and
or more
Base
drifting snow is common to the region.
3.3. Removing and replacing part
■ Switch cover removal
(1) Remove the tapping screws.
(2 places / 09~14 model, 3 places /
18~24 model)
(2) Slide the switch cover downwards to
release.
■ Installing the switch
cover
(1) After inserting the hooks (2 places) on
the switch cover into the hole on the
outdoor unit, slide the switch cover
upwards.
(2) Replace the tapping screws.
(2 places / 09~14 model, 3 places /
18~24 model)
3.4. Drain installation
• Perform drain work in accordance with this Manual, and ensure that the drain water
is properly drained. If the drain work is not carried out correctly, water may drip down
from the unit, wetting the furniture.
• When the outdoor temperature is 0 °C or less, do not use the accessory drain pipe.
If the drain pipe is used, the drain water in the pipe may freeze in extremely cold
weather.
• If you are installing the drain pipe, please
provide a working space under the base of
the outdoor unit.
• As the drain water flows out of the outdoor
unit during heating operation, install the
drain pipe and connect it to a commercial
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.
Bolt
20
CAUTION
Hooks
Holes
CAUTION
Drain pipe mounting hole
Base of the outdoor unit
Drain pipe
Nut
Washer
Screws
(09~14 model
is unnecessary)
Switch cover
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