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12. OUTDOOR INSTALLATION
12-1. Requirement on installation site
12. OUTDOOR INSTALLATION
12-1-1. General caution
A. Avoid locations exposed to direct sunlight or other sources of heat.
B. Select a location from which noise emitted by the unit will not inconvenience the neighbors.
C. Select a location permitting easy wiring and pipe access to the power source and indoor unit.
D. Avoid locations where combustible gases may leak, be produced, flow, or accumulate.
E. Note that water may drain from the unit during operation.
F. Select a level location that can bear the weight and vibration of the unit.
G. Avoid locations where the unit can be covered by snow. In areas where heavy snow fall is anticipated, special precautions
such as raising the installation location or installing a hood on the air intake must be taken to prevent the snow from
blocking the air intake or blowing directly against it. This can reduce the airflow and a malfunction may result.
H. Avoid locations exposed to oil, steam, or sulfuric gas.
I. Use the transportation handles of the outdoor unit to transport the unit. If the unit is carried from the bottom, hands or
fingers may be pinched.
12-1-2. Installation at windy location.
When installing the outdoor unit on a rooftop or other location
unprotected from the wind, situate the air outlet of the unit so
that it is not directly exposed to strong winds.Strong wind
entering the air outlet may impede the normal airflow and a
malfunction may result.
The following shows two examples of precautions against
strong winds.
Install an optional air guide if the unit is installed in a
location where strong winds from a typhoon, etc. may
directly enter the air outlet. (Fig. 12-1-2a)
Front wind baffle
Position the unit so that the air outlet blows perpendicularly
to the seasonal wind direction, if possible. (Fig. 12-1-2b)
Wind direction
12-1-3. Foundation
A. Be sure to install the unit in a sturdy, level surface to prevent rattling noises during operation. (see Fig. 12-1-3)
B. Foundation specifications are as follows.
Thickness of concrete
Weight-bearing capacity
120 [4-23/32"]
320 kg [705lbs]
C. Make sure that the length of the foundation bolt is within 30 mm [1-3/16"] of the bottom surface of the base.
D. Secure the base of the unit firmly with four-M10 [3/8"] foundation bolts in sturdy locations.
Warning:
A. The foundation base should be strong enough to support the outdoor unit, otherwise, it may fall down and cause
damage or injures.
B. The unit must be installed according to the instructions in order to minimize the risk of damage from earthquakes,
typhoons, or strong winds.
M-P0891A
mm
Foundation bolt Bolt length
M10 [3/8"]
70 [2-3/4"]
A
D
C
B
M10 (3/8") bolt
A
Base
B
As long as possible
C
Vent
D
Set deep in the ground
E
Fig. 12-1-3
Fig. 12-1-2a
[in.]
Min. 18-11/16
23-5/8
E
Min. 1
Fig. 12-1-2b
(inch)
23-5/8
8-7/8
8-7/8
41-11/32
S-Series
58
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