Installation and Wiring
Seite 19 / 180
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)
1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55
70% of rated output (W)
102 127 179 242 312 435 575 698 820 1100 1345
1625
1975
100% of rated output (W)
125 160 235 325 425 600 800 975 1150 1550
1900
2300
2800
100% of rated efficiency(%)
92.3 93.2 94.0 94.4 94.5 94.5 94.6 94.7 94.8 94.8 94.9 94.9 94.9
(Good
(Bad example)
Ventilation fan
Inverter
Ventilation fan
Inverter
