The following surrounding environment is common to all models.

Surrounding air temperature: No problem. The inverters can be used in -10 to 50°C.
Above sea level: It is designed and manufactured to be used at altitudes less than 1000 m. When using the inverter at altitudes more than 1000 m, reduce the load because the heat dissipation is decreased. The withstand voltage is also decreased.
Humidity: No problem. The humidity should be less than 90% (non-condensing).