Sunny Boy 2500U Installation and Operator’s Manual
SB2500U-11:NE - 8 - SMA Regelsysteme GmbH
2.2 Placement of the Sunny Boy
The Sunny Boy is a sophisticated electronic device and is therefore sensitive to hu-
midity within the case.
NOTE: If the Sunny Boy is placed outside, the humidity during the installa-
tion should be as low as possible - pay special attention that it does not
rain. If moisture is enclosed in the case it will eventually condense within
the device which could damage the electronics.
A suitable position must be found for the inverter while the PV-plant is designed. In
the following you will find a summary of the most important criteria.
Criteria for device mounting:
• Due to the high protection class (NEMA 4X) of the enclosure the installation is
possible indoors as well as outdoors.
• If possible, do not expose the inverter to rain despite NEMA 4X.
• Keep the DC-cabling from the solar panel to the inverter as short as possible.
• Avoid installation in the living area because a slight noise emission is possible.
• Avoid mounting on resonant parts (e. g. thin wooden panels, plaster panels,
etc.). The Sunny Boy tends to slightly vibrate when under load.
• Provide accessibility for installation and later service.
• Installation in eye-height allows to easily read the operating LEDs or the Sunny
Display.
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