GSLC175-PV1-120/240 Installation

Installation

38 900-0123-01-00 Rev C

Bypass Assembly

Bypass switching can be used when the inverter is shut down for maintenance. This topic is discussed

more beginning on page 42. The GSLC can be equipped with the GS-IOB-120/240VAC bypass

assembly. The instructions on this page are for making external connections to the bypass assembly

after installation. (The installation wiring for the GS-IOB-120/240VAC is described on page 41.)

If no bypass assembly is used, connections should be made directly to each TBB from the circuit

breakers for the inverter, AC sources, and loads. These connections are designated in Figure 33.

Wiring diagrams for an assembled 120/240 Vac system are shown beginning on page 45.

Figure 34 Inverter AC Connections (split-phase)

To make the connections to the Radian inverter:

1. Designate the top AC circuit breaker as the

inverter AC output disconnect. Install a wire from

the black AC output TBB (as shown in Figure 33. to

the disconnect marked by

2. Install a wire from the red AC output TBB to the

disconnect marked by

3. Install wires on the left side of the disconnect as

marked by

3 and 4. Connect these wires to the

appropriate L1 and L2 output terminals on

the Radian inverter.

4. Designate the third AC circuit breaker from the

top as the disconnect for one AC source (GRID or

GEN). Install a wire from the black source circuit

TBB (as shown in Figure 33) to the disconnect

marked by 5.

5. Install a wire from the red source circuit TBB to

the disconnect marked by

6. Install wires on the right side of the disconnect

as marked by

7 and 8. Connect these wires to the

appropriate L1 and L2 input terminals on the

Radian inverter (the terminals labeled either GRID

or GEN).

7. If a second AC source is present, repeat steps 4

through 6 using the bottom circuit breaker.

8. Install a wire on the inverter’s NEU terminal and

connect it to the GSLC’s neutral TBB (as shown in

Figure 33). Only one neutral connection is required.

GRID

and

GEN

inputs

AC Output

Disconnects