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Section 4, Wiring and connecting the sunny boy, Section 4: wiring and connecting the sunny boy – SMA SB 700U User Manual

Page 25

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SB700U-11:SE3207

SMA America

4-1

Section 4:

Wiring and Connecting the Sunny

Boy

This section provides step-by-step procedures and other information required for
wiring the Sunny Boy 700U to the PV array, the household circuits, and the utility
grid. To accomplish the installation in the safest and most efficient manner, complete
the steps in the order that they appear.

WARNING: Before connecting or operating the
Sunny Boy, read all of the instructions, cautions,
and warnings on the Sunny Boy, the PV array, and
in this Installation Guide
.

WARNING: You must connect the wires that carry
the AC voltage from the Sunny Boy to the utility grid
and the wires that carry the DC voltage from the PC
array to the Sunny Boy in the order described in the
procedures in this section. Deviating from these pro-
cedures could expose you to lethal voltage that can
cause serious injury.

WARNING: Always turn OFF all breakers and
switches in the PV system before connecting any
wires to the Sunny Boy or disconnecting any wires
from the Sunny Boy.

For inverters provided with a fixed AC output:

Note: The AC input and AC output circuits are isolated from the
enclosure and system grounding, if required by section 250 of the
National Electric Code, ANSI/NFPA 70, is the responsibility of the
installer.

Note: The Photovoltaic System Grounding shall be installed per the
requirements of sections 690.41 through 690.47 of the National
Electric Code, ANSI/NFPA 70, and is the responsibility of the
installer.