Chapter 3: Mechanical Installation
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3. MECHANICAL INSTALLATION
3.1 Operating Environment
Install the inverter in an environment that satisfies the requirements listed in Table 3.1.
Table 3.1 Environmental Requirements
Item
Specifications
Site location
Indoors
Ambient
temperature
-10 to +50
°
C
(Note 1)
Relative
humidity
5 to 95% (No condensation)
Atmosphere
The inverter must not be exposed to dust,
direct sunlight, corrosive gases, flammable
gas, oil mist, vapor or water drops.
(Note 2)
The atmosphere must contain only a low
level of salt.
(0.01 mg/cm
2
or less per year)
The inverter must not be subjected to
sudden changes in temperature that will
cause condensation to form.
Altitude
1000 m max.
(Note 3)
Atmospheric
pressure
86 to 106 kPa
Vibration
3 mm (Max. amplitude) 2 to less than 9 Hz
9.8 m/s
2
9 to less than 20 Hz
2 m/s
2
20 to less than 55 Hz
1 m/s
2
55 to less than 200 Hz
3.2 Installing the Inverter
(1) Mounting base
The temperature of the heat sink will rise up to approx. 90°C during
operation of the inverter, so the inverter should be mounted on a base made
of material that can withstand temperatures of this level.
Install the inverter on a base constructed from metal or other non-flammable
material.
A fire may result with other material.
(2) Clearances
Ensure that the minimum clearances indicated in Figure 3.1 are maintained
at all times. When installing the inverter in the panel of your system, take
extra care with ventilation inside the panel as the temperature around the
inverter will tend to increase. Do not install the inverter in a small panel with
poor ventilation.
Prevent lint, paper fibers, sawdust, dust, metallic chips, or other foreign materials from getting into the inverter or from
accumulating on the heat sink.
This may result in a fire or accident.
Figure 3.1 Mounting Direction and
Required Clearances
Table 3.2 Output Current Derating
Factor in Relation to Altitude
Altitude
Output current
derating factor
1000 m or lower
1.00
1000 to 1500 m
0.97
1500 to 2000 m
0.95
2000 to 2500 m
0.91
2500 to 3000 m
0.88
(Note 1) When inverters are mounted side-
by-side without any gap between them (less
than 5.5 kW), the ambient temperature
should be within the range from -10 to
+40
°
C.
(Note 2) Do not install the inverter in an
environment where it may be exposed to
cotton waste or moist dust or dirt which will
clog the heat sink in the inverter. If the
inverter is to be used in such an
environment, install it in the panel of your
system or other dustproof containers.
(Note 3) If you use the inverter in an altitude
above 1000 m, you should apply an output
current derating factor as listed in Table 3.2.
