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2. SELECTING THE INSTALLATION SITE
2-1. Outdoor Unit
AVOID:
● heat sources, exhaust fans, etc.
Hot air
Outdoor unit
● damp, humid or uneven locations
● indoors (no-ventilation location)
DO:
● choose a place as cool as possible.
● choose a place that is well ventilated and outside air
temperature does not exceed maximum 46°C constantly.
● allow enough room around the unit for air intake/
exhaust and possible maintenance. For the details, see the
following installation examples (1) to (10).
● provide a solid base (concrete block, 100 × 450 mm beams
or equal), a minimum of 150 mm above ground level to
reduce humidity and protect the unit against possible water
damage and decreased service life.
Air intake
Air discharge
Anchor bolts
(4 pieces)
● use lug bolts or equal to bolt down unit, reducing vibration
and noise.
Installation space for outdoor unit
Install the outdoor unit at a place where there is enough space
for ventilation. Otherwise the unit may not operate properly.
Required space for installation shows in the descriptions (1)
to (10). For other installation examples, refer to the Technical
Data.
It is possible to reduce the space between the air discharge
outlet and an obstacle by installing the field supplied air-
discharge chamber for top discharge. See the note in the figure.
When installing the air-discharge chamber for top discharge,
keep the unit above free from obstruction.
(1) Obstructions on the rear side (Front side, left side, right
side and above the unit are opened).
Exhaust fan
Heat source
Air intake
Min. 150 mm
(2) Obstructions on the left side, right side and rear side (Front
side and above the unit are opened).
150 mm
or more
(3) Obstructions on the front side (Rear side, left side, right
side and above the unit are opened).
(4) Obstructions on the front side and rear side (Left side, right
side and above the unit are opened).
* When using the air-discharge chamber : 500 mm or more
(5) Obstructions on the rear side and above the unit (Left side,
right side and front side are opened).
The air-discharge chamber can not be used.
18
250 mm
or more
150 mm
or more
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