SMA SUNNY CENTRAL 900CP XT - Function Test; Checking the Fans; Checking the Heating Elements and Hygrostat

4 Commissioning
SMA Solar Technology AG
User Manual 33SCCPXT-E7-BA-en-58
4.5 Function Test
4.5.1 Checking the Fans
DANGER
Danger to life due to electric shock or electric arc if live components are touched
• Switch off the inverter and wait at least 15minutes before opening it to allow the capacitors to discharge
completely.
• Disconnect the inverter (see Section5, page50).
Procedure:
1. Switch the inverter to Stop.
2. Connect the supply voltage (see Section5.3.1, page52).
☑ The fans start to run for a few moments.
✖ The fans do not start up?
• Contact SMAServiceLine.
4.5.2 Checking the Heating Elements and Hygrostat
Figure 11: Position of the heating element and the hygrostat
Position Designation
A Hygrostat
B Heating element
DANGER
Danger to life due to electric shock or electric arc if live components are touched
• Switch off the inverter and wait at least 15minutes before opening it to allow the capacitors to discharge
completely.
• Disconnect the inverter (see Section5, page50).