La Marche A31 - Making the AC Output;Ac Bypass Line Connections; 3 Operation; A31 Start-Up; Checking the Installation

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2.3 Making the AC Output/AC Bypass Line Connections
A terminal strip is provided for the AC load, as well as for the AC bypass line if applicable. Before beginning any
work inside the inverter, ensure that all incoming AC/DC power is de-energized and/or isolated. Verify that no
voltage is present inside the inverter by using a voltmeter at all input and output terminals.
First, select wire size using the Table 4. Connect an adequate earth ground lead (use table on previous page for
sizing) to the terminal marked ground and to the LINE SYNC INPUT (GND) terminal.
For the AC load, connect the AC load phase (hot) to the LOAD (Ø) terminal and the AC load neutral to the LOAD
(N) terminal.
For the AC bypass line, connect the AC bypass line phase (hot) to the LINE SYNC INPUT (Ø) terminal and the AC
bypass line neutral to the LINE SYNC INPUT (N) terminal.
NOTE: For inverters with the static switch option (22P, 22S, 164, or 165), also connect the AC bypass line phase
(hot) to the LINE (Ø) terminal and the AC bypass line neutral to the LINE (N) terminal.
Figure 5 – One-Line Diagram for Typical A31 Inverter Application
3.0 Operation
3.1 A31 Start-Up
All equipment is shipped from the factory fully inspected and adjusted to manufacturer defined default values
based on the model number. Do not make any adjustments unless the equipment has been energized and the
settings have been determined to be incorrect.
3.2 Checking the Installation
Before attempting to start up the A31, check and verify that all connections are correct. Check that all terminations
and contacts are tightened securely. Check for any loose connections or unsecured components in the inverter.
Verify that the AC bypass line and battery/load voltage match the voltages on the nameplate of the inverter.
3.3 Start-Up Sequence
Before starting the A31 inverter, determine whether the inverter does or does not have the static switch option
(22P, 22S, 164, or 165) by referring to the front page of the manual, then follow the appropriate instructions
below: