Sunny Boy Opening and Closing
SMA Solar Technology AG
30
SB3300TLHC-IEN094121
Installation Guide
7.2 Closing the Sunny Boy
1. Reconnect the protective earth (PE) to the housing cover.
2. Now secure the lid to the Sunny Boy by tightening the four screws evenly. The screws must be
tightened with approximately 4 Nm torque in order to guarantee the sealing of the housing.
3. Connect the PV generator. Ensure the assignment of the strings is correct.
4. Check the Electronic Solar Switch for wear, as
described in section 8.2 ”Check the Electronic
Solar Switch for wear” (page 31).
5. Reinsert the Electronic Solar Switch in the socket on
the underside of the Sunny Boy.
6. Switch the line circuit breaker to the "On" position.
7. Now check whether the LED display on the Sunny
Boy indicates that the device is functioning
correctly.
NOTICE!
Manipulating the connector in the handle can damage the Electronic Solar
Switch!
The connector within the handle must remain movable in order to ensure proper contact.
Tightening the screw voids all warranty claims and creates a fire risk.
• Do
not
tighten the connector screw in the Electronic Solar Switch handle.
NOTICE!
The Electronic Solar Switch can be damaged if it is inserted incorrectly!
The Electronic Solar Switch can be damaged by high voltage if it has not been attached
properly.
• Press the handle firmly into place on the socket of the Electronic Solar Switch until it
audibly locks into place.
• Check that the handle is securely in place.
Operation
(green)
Ground fault
(red)
Disturbance
(yellow)
