SMA Solar Technology AG
Installation Guide
SB50US-80US-IUS094030
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• The Sunny Boy emits a slight vibrating noise when operating. This vibration is normal and has
no effect on performance, but it can be objectionable if the inverter is mounted on a wall in a
living area, on the outside of a wall that is near a living area, or on certain types of materials,
such as thin wood panelling or sheet metal.
4.1.2 Ambient Conditions
• Do not install the Sunny Boy in direct sunlight. External heating from exposure to the sun may
cause excessive internal heating. This can result in reduced output power to protect the internal
components from damage.
• Install the Sunny Boy in a location that maintains an ambient air temperature that is less than
113 °F (45°C). To maintain a safe internal component temperature, the Sunny Boy may power
reduce if the ambient air temperature exceeds 113 °F (45°C). (The cooler the air temperature,
the longer the life expectancy of any power electronics device.)
• The Sunny Boy is constructed in a rugged powder coated aluminum enclosure designed for
outdoor installations. However, care should always be taken to minimize exposure to the
elements. It is best to minimize exposure to rain, snow and ice, etc. Do not install the Sunny Boy
in a location exposed to sources of direct water spray such as sprinklers or downspouts.
4.1.3 Position
• Vertical installation or tilted backward by max. 45°.
• Never install the inverter with a forward tilt.
• Do not install horizontally.
• Install at eye level to allow operating modes to be read at all times.
