Generator AC Connection System

A single-phase, three-wire AC connection system is used in the home generator. The stator assembly consists of a pair of stationary windings with two leads brought out of each winding. The junction of leads 22 and 33 forms the neutral lead. Keep field wiring to a minimum. A complete schematic and wiring diagram can be found later in this manual.

NOTE: Neutral is not bonded to ground at generator.

Grounding the Generator

Ground the home generator per applicable codes, standards, and regulations. The generator GND lug is located in the control panel box.

Utility Circuit Connection

“240V Utility” leads must be routed in conduit. The

“240V Utility” leads deliver power to the generator’s circuit board, optional battery warmer and oil warmer. This power also charges the battery. When power on these leads is lost, the generator will start.

Using provided 2 pole connector plug and installer-supplied minimum 300V, 14 AWG copper wire, connect each control circuit terminal in the generator to the two-amp fuse terminals in the automatic transfer switch.

Transfer Switch Communication

Using #18 AWG twisted pair conductors, no greater than 200 ft in length, connect Tx Rx and Tx Rx Ground from the generator control panel to the GND and T/R on the transfer switch control board.

Generator

Transfer

Switch

Fault Detection System

The generator may have to run for long periods of time with no operator present. For that reason, the system is equipped with sensors that automatically shut down the generator

in the event of potentially damaging conditions, such as low oil pressure, high temperature, over speed, and other conditions. Refer to Fault Detection System in Maintenance for more detailed information.

The owner will use the remote LED indicator to observe the status of the home generator system. Consult with the owner for a convenient location. Locate the electrical box in an area visible by the home owner such as near a garage door opener or security control panel.

To install the remote LED indicator:

1.Push the LED through the mounting plate from the front until it snaps in place.

IMPORTANT: The LED is polarity sensitive.

2.Using provided 10 pole connector and installer-supplied minimum 18AWG wire, connect the remote LED to the generator control board +LED and GND connection. Use wire nuts to attach wire to LED leads.

3.Attach mounting plate to installer-supplied electrical box.

16	BRIGGSandSTRATTON.COM