Battery Installation; Operational Testing - Generac Power Systems ECO GEN Series Installation Manuallines

10. Connect the green equipment ground wire to the ground bus
bar and torque to 35 inch lbs. The torque values are:
• 10-14 AWG = 35 in/lbs
• 8 AWG = 40 in/lbs
• 4-6 AWG = 45 in/lbs
11. Connect the white neutral wire to the neutral bus bar and
torque to 35 inch lbs. The torque values are:
• 10-14 AWG = 35 in/lbs
• 8 AWG = 40 in/lbs
• 4-6 AWG = 45 in/lbs
12. Connect the control wires to the correct terminals. The
terminals are clearly marked 178, 183 and T1. Connect
battery charger neutral (120 VAC) to neutral Bus.
In order to maintain separation of circuits, the
DC control wires must be separated from the AC
control wires. A piece of fiberglass sleeving has
been provided in the manual kit to achieve this.
Slide the sleeving over the AC wires OR the DC
wires, but not both, from the wire landing area
to the outside of the generator. Use the cable tie
locations to hold the sleeving in place.
12. An improperly connected control wire can damage the
generator control board.
It is highly recommended that an additional switch be installed
in-line of the generator output (HOT) wire at/before the inverter/
energy management system. The installer must comply to local
codes and regulations regarding correct rating. This will provide a
safety disconnect at the inverter.
8
NOTE:

BATTERY INSTALLATION

1. Before purchasing a battery for the generator, refer to the
Owner's Manual for the recommended battery.
• Group 26R, 12 Volt, 525cca minimum
2. Follow all of the procedures and safety precautions in the
generator Owner's Manual when installing the battery.
Verify the switch is in the off position. When preparing for
operational testing, DO NOT connect the battery until all
electrical connections are complete.

OPERATIONAL TESTING

Verify that all wiring connections at the Alternative Power
Management System are correct. Refer to the system
manufacturer's installation manuals for specific instructions. The
system manufacturer's instructions should always be followed
when testing the operation of the off-grid system.
1. Verify power is being supplied to the generator battery
charger. Verify that 120 VAC from T1 terminal to the neutral
bar in the generator customer connect.
2. Turn OFF or open the main Circuit Breaker and select the
OFF position of the AUTO/OFF/MANUAL switch on the Nexus
controller.
The next test is to verify that the generator operates properly under
no load.
3. Turn the main Circuit Breaker to the OFF or Open position.
4. Set the AUTO/OFF/MANUAL switch to the MANUAL position.
The engine should crank and start. Allow the engine to warm
up for about 5 minutes
5. Once the engine is warm, verify that you have 60 Hz and
between 120 to 125 VAC at the generator's main Circuit
Breaker.
6. Set the AUTO/OFF/MANUAL switch into the Off position to
shut the generator down.