SMA SC 500HE-US Maintenance Manual - Manual (Page 16)

4 Maintenance SMA America, LLC
16 SC500HEUS-eng-WH-IUS120411 Maintenance Manual
4 Maintenance
This section includes all necessary information for performing maintenance work on the
Sunny Central.
4.1 Maintenance Intervals
Observance of maintenance intervals ensures trouble-free operation of the Sunny Central.
Maintenance intervals depend on ambient and operating conditions. Under especially harsh ambient
conditions, certain maintenance tasks must be performed more frequently. These maintenance tasks
are listed in the maintenance report. SMA recommends a monthly optical inspection in order to
determine the need for maintenance. Under normal ambient and operating conditions, the
Sunny Central must be completely serviced at the following intervals:
Maintenance under normal ambient and operating conditions:
Preventative replacement intervals:
Description Interval
Routine maintenance Every 24 months
AC circuit breaker Every 48 months
Surge arrester If tripped
Retighten the power cable connection by using a
cage clamp Every 12 months
Unscheduled maintenance After any short circuit
• Contact the SMA Service Line
Description Interval
GFDI/soft grounding/ABB high-performance
circuit breaker After 100 trippings
• Contact the SMA Service Line
Fan 10 years
• Contact the SMA Service Line
Surge arrester
• DEHNguard
If tripped
• Contact the SMA Service Line