En-3
CAUTION
If the outdoor unit must be installed in an area within easy reach of the general public,
install as necessary a protective fence or the like to prevent their access.
Install the outdoor unit in a location that would not inconvenience your neighbors, as
they could be affected by the airflow coming out from the outlet, noise, or vibration. If it
must be installed in proximity to your neighbors, be sure to obtain their approval.
If the outdoor unit is installed in a cold region that is affected by snow accumulation,
snow fall, or freezing, take appropriate measures to protect it from those elements. To
ensure a stable operation, install inlet and outlet ducts.
Install the outdoor unit in a location that is away from exhaust or the vent ports that
discharge vapor, soot, dust, or debris.
Install the indoor unit, outdoor unit, power supply cable, connection cable, and remote
controller cable at least 1 m away from a television or radio receivers. The purpose of
this is to prevent TV reception interference or radio noise. (Even if they are installed
more than 1 m apart, you could still receive noise under some signal conditions.)
Branch switch and
circuit breaker
1 m or more
1 m or more
Branch switch and
circuit breaker
If children under 10 years old may approach the unit, take preventive measures so that
they cannot reach the unit.
Keep the length of the piping of the indoor and outdoor units within the allowable range.
For maintenance purposes, do not bury the piping.
3.2. Drain installation
CAUTION
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
and drain cap. If the drain pipe and drain cap are used, the drain water in the pipe may
freeze in extremely cold weather. (Reverse cycle model only)
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. (Reverse cycle model only)
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.
(Reverse cycle model only)
(Unit : mm)
Drain cap mounting hole
AIR
Drain pipe mounting hole
302 265
188
51
439
623
Base
Drain pipe
Drain pipe mounting hole
3.3. Installation dimensions
CAUTION
The installation space shown in the following examples is based on an ambient
temperature under cooling operation of 35 °C (DB) at the air intake of the outdoor unit.
Provide more space around the air intake than shown in the examples if the ambient
temperature exceeds 35 °C (DB) or if the thermal load of all of the outdoor units
exceeds the capacity.
Consider the transportation route, installation space, maintenance space, and access,
and install the unit in a location with sufficient space for the refrigerant piping.
Observe the installation space specifications that are shown in the figures.
Keep the same space at rear air intake.
Provide the same space for the air intake at the rear of the outdoor unit.
If the installation is not performed according to the specifications, it could cause a short
circuit and result in a lack of operating performance. As a result, the outdoor unit might
easily be stopped by high-pressure protection.
Air intake
Rear view
Installation methods not shown in the following examples are not recommended.
Performance may drop significantly.
3.3.1. Single outdoor unit installation
When the upward area is open
(Unit : mm)
(1) Obstacles at rear only
(2) Obstacles at rear and sides only
(3) Obstacles at front only
(4) Obstacles at front and rear only
1000 or more
200
300
200
1000 or more
150
150
When an obstruction is present also in the upward area
(Unit : mm)
(1) Obstacles at rear and above only
(2) Obstacles at rear, sides, and above
only
300
Max. 500
1000
1500
250
250
500
Max. 500
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