Large Load (Not Overload); Automatic Voltage Regulator (Avr) Cooling Fans; The Generator - Generac Power Systems 15 kW EcoGen Owner's Manual

General Information
2.1.6— Large Load (Not Overload)
The engine always runs at a speed appropriate for the attached load. Typical loads up to 10 kW or 2 hp can be wired
directly. The engine speed remains at 3600 RPM for a programmable time (20 minutes default) and then ramps down
to the speed appropriate for the attached load. The programmable time can be changed by the dealer to prevent
annoying ramps up and down in engine speed if large loads turn on and off frequently.
NOTE: If natural gas is the selected fuel type, then all loads up to 9 kW can be wired directly.
2.1.7— Automatic Voltage Regulator (AVR) Cooling Fans
The system is equipped with two fans to cool the AVR electronics. The primary fan is powered by AC during operation.
The secondary fan is powered by 12V DC through the controller. The fans are monitored during operation and if a fail-
ure occurs, an alarm is displayed.
The secondary fan continues to operate for up to one hour after the generator is shut down. Proper cooling must occur
before removing battery connections for maintenance or other service activity.
*
The secondary 12V DC fan continues to operate for up to one hour after the generator is shut down
(even if the 7.5 amp ATO fuse is removed). To avoid hand injury, always exercise caution when working
near the AVR fan housing.
NOTE: The AVR cooling air inlet includes a filter. Verify the filter is installed and properly seated at time the
unit is installed. Check the filter at regular maintenance intervals to verify proper airflow.
2.2 — The Generator
Automatic Voltage
Regulator (AVR)
Exhaust
Enclosure
Composite Base
6
Engine
Air Filter
Oil Dipstick
Oil Tank
Figure 2-1. Component Locations
AVR
Data Label
Air Filter
Battery
Oil Filter
Compartment
EcoGen Automatic Standby Generator Owner's Manual
Control
Pad
Circuit
Breakers
Fuel
Inlet
(Back)
Fuel
Regulator