SMA SB 5000-US - Manual (Page 84)

Maintenance SMA America, LLC
84 SB50US-80US-IA-en-37 Installation Manual
10.4 Fan Test
You can check the operation of the fans in 2 ways:
• Set the parameter "Fan Test" in installer mode to "1". To do this, use the Sunny Data, Sunny Data
Control, Sunny Boy Control, or the Sunny WebBox.
or
• Set the jumper on the sequential control system board. The jumper for checking the fans is
included in the scope of supply of the Sunny Boy.
Setting the Parameter
1. Ask for the installer password from SMA Service Line. See "Contact" on page 103.
2. Set the "Fan Test" parameter to "1" in installer mode.
3. Check the air flow of the fans.
– The Sunny Boy draws in cold air through the fans and lets it out again through the handle
covers.
– Pay attention to unusual sounds.
4. After checking the fans, set the parameter "Fan Test" back to "0".
In the event of frost, the fan cannot be inspected
The fans are not activated under 32 °F (0 °C).