Xantrex Technology XW POWER SYSTEM XW4024-120/240-60 - Manual (Page 56)

Inverter/Charger Installation
2–32 975-0239-01-01
AC Wiring for a Dual-Inverter System
1. Disconnect the AC wires (from the utility grid or generator and to the sub-panel) and
remove the factory-installed distribution bars connected to top and bottom terminals
on the AC breakers.
2. Remove bypass interlock bracket.
3. Disconnect INV1 AC LOAD (INV1 L1-LOAD, INV1 L2-LOAD) wires from top
terminals on right-hand side breaker.
4. Add three additional dual-pole AC breakers (supplied in 865-1020) next to the
existing three dual-pole AC breakers.
5. Attach the four distribution bars (supplied in 865-1020) to top and bottom of AC
breakers as shown in dual-inverter system wiring diagrams.
6. Connect grid wiring and loads/subpanel wiring to the new distribution bars as shown
in Figure 2-26.
7. Connect INV1 LOAD (INV1 L1-LOAD, INV1 L2-LOAD), INV2 LOAD (INV2
L1-LOAD, INV2 L2-LOAD), and INV2 GRID (INV2 L1-GRID, INV2 L2-GRID)
wires to AC breakers as shown in Figure 2-26.
8. Connect neutral (INV2 N-LOAD (SPLIT-PHASE)) and ground (INV2 GROUND)
wiring as shown in dual-inverter system wiring diagrams.
9. Connect wiring at the inverter/chargers as shown in Figure 2-26.
10. Remove the knockouts on upper wire cover for additional breakers to fit through.
11. Re-install upper wire cover. Relabel the AC breakers with the appropriate labels
provided with the XW Power Distribution Panel.
12. Install bypass interlock plate with provided screws and nylon shoulder washers
(supplied in 865-1020).
Figure 2-25 Dual Inverter AC Breaker Arrangement and Wiring Enlargement with Multiple AC Input Sources
GRID
BYPASS
INV 1 OUT
(AC LOADS)
INV 2 IN
(GRID)
GRID
BYPASS
INV 1 OUT
(AC LOADS)
INV 1 IN
(GRID)
INV 1 IN
(GEN)
INV 2 IN
(GEN)
T
O
A
C
1
O
N
IN
V
1
TO
A
C
1
O
N
IN
V
2
TO INVERTER AC
DISTRIBUTION PANEL
FROM MAIN AC
DISTRIBUTION PANEL
FROM GENERATOR
DISCONNECT
T
O
A
C
2
O
N
IN
V
1
T
O
A
C
2
ON
IN
V
2
Power Distribution bars in the XW
Power Distribution Panel accept up to
a #2/0 AWG cable (maximum).
See Figure 2-9 on page 2–11 for
torque requirements.