SMA SC 500HE-US Maintenance Manual - Manual (Page 42)

4 Maintenance SMA America, LLC
42 SC500HEUS-eng-WH-IUS120411 Maintenance Manual
5. Pull out the terminal plug for the heating control.
☑ A contactor audibly switches off the inverter. After about 2 minutes, another contactor
audibly switches off the control voltage.
✖ What if the switching of the contactors is not audible?
• Contact the SMA Service Line.
6. Check whether the heating elements radiate heat after a delay time of 5 minutes.
If the heating element does not radiate heat, contact the SMA Service Line.
7. Insert the terminal plug for the heating control.
☑ A contactor audibly switches on the control
voltage. After about 2 minutes, another
contactor audibly switches on the inverter.
✖ What if the switching of the contactors is not
audible?
• Contact the SMA Service Line.
8. Mount the protective covers.
9. Close the doors of the connection cabinet.
10. Close the doors of the inverter cabinet.