Briggs & Stratton 20000, 18000 manual Generator AC Connection System, Grounding the Generator

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, as shown schematically and as wiring diagram below. A complete schematic and wiring diagram can be found in the separate illustrated parts list 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 inside the control panel door under the circuit breaker cover.

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 optional 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.

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 oil temperature, over speed, and other conditions. Refer to Fault Detection System in the Operator’s Manual 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. 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 18 AWG wire, connect the remote LED to the generator control board. Use wire nuts to attach wire to LED leads.

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

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