Xantrex Technology power Inverter Stacking - Manual (Page 24)

Installation
2–6 975-0059-01-01 Rev A
AC Wiring - General
Be sure to use the recommended wire and disconnect size as recommended in the
Owner’s Manual for the Sine Wave Plus Inverter.
Inverter AC Distribution Panel (Sub-Panel) Wiring (if used)
An Inverter AC Distribution Panel (referred to here as the inverter panel) and AC
conduit must be installed before AC output wiring is connected to the dual
inverters. The inverter panel is a sub-panel to the main utility panel.
Install the Inverter AC Distribution Panel and conduit as follows:
1. Determine the location for the Inverter AC Distribution Panel (i.e., the
sub-panel) and install it according to the manufacturer’s directions.
2. Install an AC conduit to the inverter panel and the inverter.
3. Determine which circuits the inverter will power and install the appropriate
circuit breakers into the inverter panel.
4. For On-Grid systems, remove wires for circuits to be backed up from the main
utility panel and install then in the new inverter (sub) panel.
5. Install a double pole 60-amp maximum (disconnect) main circuit breaker in
the inverter panel: one for each leg of the circuit for L1 and L2.
6. Verify that under no circumstances can utility power or generator power
energize the inverter panel directly while the inverter also energizes the
inverter panel.
WARNING
Before connecting any AC wiring, ensure that there is no DC energy accessible by the
inverter by opening the DC disconnect switch(es).
WARNING: Shock Hazard
Verify that only one neutral/ground bond exists in the system. Having more than one
neutral to ground bond in a system may create a shock hazard and cause some sensitive
equipment to malfunction.
On-Grid systems always have a ground-to-neutral bond provided by the utility meter or
service entrance, therefore do not need a ground-to-neutral bond made in the inverter
panel. Remove it if present in the sub-panel.