2-3
5. Operating Environment - Air
Install the Inverter avoiding any place that has dust, corrosive gas, explosive gas, combustible gas,
mist of coolant and sea damage.
6. Mounting Position
Mount the Inverter in a vertical position using screws or bolts. The surface you mount onto should also
be free from vibration and can easily hold the weight of the Inverter.
7. Ventilation within an Enclosure
If you are installing one or more Inverters in an enclosure a ventilation fan should be installed. Below is
a guide to the positioning of the fan to take the airflow into consideration. The positioning of Inverter,
cooling fans and air intake is very important. If these positions are wrong, airflow around the Inverter
decreases and the temperature surrounding the Inverter will rise. So please make sure that the
temperature around is within the limit of the allowable range.
8.External cooling of Inverter
It is possible to install the inverter so that the heatsink is out of the back of the enclosure. This method
has two advantages, cooling of the inverter is greatly increased and the size of the enclosure will be
smaller.
To install it with the heatsink out of the enclosure, a metal fitting option is required to ensure heat
transfer.
Do not install in a place where water, oil mist, flour and dust etc can come in contact with the inverter as
there are cooling fans fitted to the heatsink.
9. Approximate loss for each capacity
Inverter capacity (kW)
11
15
18.5
22
30
37
45
55
75
90
110
132
70% of rated output (W)
435
575
698
820
1100
1345
1625
1975
2675
3375
3900
4670
100% of rated output (W)
600
800
975
1150
1550
1900
2300
2800
3800
4800
5550
6650
100% of rated efficiency(%)
94.8
94.9
95
95
95
95.1
95.1
95.1
95.2
95.2
95.2
95.2
Chapter 2 Installation and Wiring
(Good example)
(Bad example)
Ventilation fan
Inverter
Ventilation fan
Inverter