SMA Solar Technology AG 6 Preparation for Installation
Installation Manual SCCPXT-IA-D7-en-42 21
Dimensions of the Sunny Central for Indoor Installation
Figure6: Dimensions without roof
6.1.3 Minimum Clearances for Outdoor Installation
Observe the following requirements for optimum operation of the Sunny Central:
☐ The exhaust air vents must not be obstructed or closed.
☐ The electrical equipment room must be equipped with suitable exhaust air vents.
☐ In closed rooms, ensure that the exhaust air is ducted out of the room. This will prevent the occurrence of thermal
short circuits.
☐ The exhaust air vents must be accessible for cleaning at all times.
Risk of fire due to overheating of cables if different cable lengths are used
Cables of differing lengths may cause the cables to overheat and catch fire. This can result in death or serious injury.
• All line conductors from the Sunny Central to the MV transformer must be of the same length.
• The cable length between the connection points must not exceed 15 m.
Damage to the inverter and the MV transformer due to intake of exhaust air
The induction air is intended to cool the inverter components. Failure to observe the specified minimum clearances can
result in warm exhaust air from the inverter being drawn in. This increases the risk of a thermal short circuit. Property
damage due to yield loss and damage to the components may result.
• When installing the PV system, ensure that no exhaust air can be drawn in through the air inlets of the inverter.
• When installing the PV system, ensure that it is not possible for exhaust air from the inverter to be drawn into the
air intake of other devices (e.g. the MV transformer).
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