2-1
Chapter 2 MOUNTING AND WIRING OF THE INVERTER
2.1 Operating
Environment
Install the inverter in an environment that satisfies the requirements listed in Table 2.1.
Table 2.1 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
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
Vibration
1 m/s
2
55 to less than 200 Hz
Table 2.2 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 2.2.
2.2 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
2.1 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 e
panel with poor ventilation.
Figure 2.1 Mounting Direction and
Required Clearances
