SMA SUNNY CENTRAL 900CP XT - Inverter with Low-Temperature Option: Checking the Heating Elements

6 Maintenance
SMA Solar Technology AG
Maintenance ManualSCCPXT-E7-WA-en-3748
6.4.1.4 Inverter with Low-Temperature Option: Checking the Heating Elements
Figure 13: Position of the heating elements and the temperature control
Position Designation
A Heating element with low-temperature range option
B Connection plug of the temperature control
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4, page26).
CAUTION
Risk of burns due to hot components
Some components of the product can get very hot during operation. Touching these components can cause burns.
• Observe the warnings on all components.
• During operation, do not touch any components marked with such warnings.
• After switching off the product, wait until any hot components have cooled down sufficiently.
• Wear suitable personal protective equipment for all work on the product.
Procedure:
1. Switch the inverter to Stop.
2. Disassemble the protective covers (see Section7.1.2, page63).
3. Connect the supply voltage (see Section4.3.1, page28).