Installation

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.

WARNING

Before connecting any AC wiring, ensure that there is no DC energy accessible by the inverter by opening the DC disconnect switch(es).

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: 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.

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975-0059-01-01 Rev A