SMA SUNNY CENTRAL Maintenance manual - Manual (Page 27)

SMA Solar Technology AG Maintaining the Sunny Central
Maintenance Manual SCWAR-WEN094020 27
3.11 Maintaining the heat exchanger
The Sunny Central with the ventilation option "chemically active" is equipped with a heat exchanger.
Clean the fans and ventilation grids of the heat exchanger during maintenance.
Depending on the Sunny Central type, different heat exchangers are installed. As an example, the
disassembling procedure is shown for Sunny Central 250 and Sunny Central 630.
3.11.1 Disassembling the heat exchanger for
Sunny Central 200 / 250
1. Open the doors of the DC/inverter cabinet. The heat exchangers (A) are on the inside of the
door of the switch cabinets.
DANGER!
Death resulting from electric shock and burning upon touching the medium-
voltage grid's live components.
• Only work on the device when it is switched off and voltage-free.