Checking The Fans - SMA SUNNY BOY 2000HF Installation Manual

Maintenance and Cleaning
9.1.2 Checking the Fans
Checking the Fan
To test the fan you will need a special data logging device (e.g. Sunny WebBox) or a PC
with appropriate software (e.g. Sunny Explorer) in order to change the parameters of the
inverter.
You will also need the installer password to access the installer mode.
1. Request the installer password from the SMA Serviceline (contact: see Page 93).
2. Set the "CoolSys.FanTst" or "Fan test" parameter to "On" in the installer mode.
3. Check the air-flow of the fan.
The inverter sucks air in from underneath and then blows it back out on the upper left side. Listen
for any unusual noise, which could indicate incorrect installation or that the fan is faulty.
4. After checking the fan, set the "CoolSys.FanTst" or "Fan test" parameter back to "Off".
☑ You have finished checking the fan.
66 SB20_25_30HF-IEN102911
SMA Solar Technology AG
Installation Guide