SMA SC 100 Indoor Installation - Manual (Page 21)

SMA Solar Technology AG Installation Requirements
Installation Guide SC-100-IEN093231 21
5.1.4 Ventilation
Ambient Temperature / Air Quality / Humidity
To cool the inverter, the ventilation system must be free of any obstructions in order to ensure the
required inlet ventilation and heat dissipation.
The specified minimum clearances in Appendix C must be maintained for this purpose.
For safe operation, and maximum feed-in performance, the permissible ambient temperature is
between -20 and +50 °C. The rated values can be ensured at ambient temperatures of up to +40 °C.
The air required for the SC 100 Outdoor is drawn through the ventilation system on the roof of the
inverter. Therefore, the corresponding device openings must be kept free and clean according to the
maintenance intervals specified in the user manual. The air required for the SC 100 Indoor can either
be drawn through the ventilation system on the roof of the inverter or fed directly to the inverter
through an air duct that is provided by the customer.
The exhaust air (waste heat) is blown out through the front plinth panels. The exhaust air of the SC
100 Indoor is blown out through an air duct in the roof of the inverter.
If the SC 100 Outdoor is exposed to direct sunlight, the internal temperature in the inverter can
increase and thus lead to a reduction in the output power. In this case, we recommend using a sun
shading system or installing the device in a shaded area or under a module table. In case of existing
buildings, the shaded area at the north side of the building should be used.
Figure 5.4: View of the ventilation concept of the SC 100 Outdoor