SMA SC 500U Installation - Manual (Page 59)

SMA Solar Technology AG
Installation Guide SC500U-IUS093411 59
Check the ventilation air flow using a sheet of paper.
1. Hold the piece of paper in front of the air shafts.
2. Check to see whether the sheet is blown away from or sucked toward the inverter.
3. Compare the air circulation with what is described in this section.
Result 1
The Sunny Central sucks in air and blows it out as described in this section. Commissioning has
been successfully completed.
Result 2
The Sunny Central does not suck air in, nor does it blow it out as described in this section.
– Shut down the Sunny Central.
– Contact SMA America (see Section 14 "Contact" (page 72)).
Result 3
The Sunny Central does not suck air in nor does it blow it out, at all.
– Check to see whether the Sunny Central is in operation.
– If the Sunny Central is in operation, shut it down.
– Contact SMA America (see section 14 "Contact" (page 72)).