SMA Sunny Breeze Cooling Fan

For the 1800 & 2500 Inverters

Sunny Boy Inverters are meant to be installed in the shade, outdoors, along a wall or on a pole where natural airflow across the heatsink is present. If the inverter is installed in the sun, indoors, or in an area where natural airflow is restricted, a fan is needed to provide forced airflow. When the temperature of the heatsink approaches 70°C (158°F) the inverter will go into a derating mode which lowers the power output of the inverter to the grid. Sunny Breeze is specially designed to provide forced airflow, when natural airflow is restricted or absent, to the Sunny Boy line of inverters and help keep the heatsink temperature below 70°C (158°F).

Detailed Description:

The Sunny Breeze is powered by a small "wall wart" transformer, but is energized only when the heatsink temperature approaches a level when derating may begin. By utilizing a thermal switch the Sunny Breeze is automatically switched on when the heatsink temperature reaches 50°C (122°F), and turns off when the heatsink temperature reaches 35°C (95°F).

The Sunny Breeze will provide forced airflow where natural airflow across the heatsink is restricted or high ambient temperature may cause the inverter to enter into derating mode. The Sunny Breeze is not designed to allow the connection of more than the recommended maximum input power. Running the Inverter with more than the recommended maximum PV source power for extended periods of time will shorten the life of the inverter, is a violation of the UL listing, and may void the warranty.