Electrical System
38 Installation Guidelines for Spark-Ignited Stationary Emergency Generators
6.12 — Operational Checks
NOTE: The following procedures require special tools and skills. Contact a Generac Dealer or an authorized service
provider to perform these tasks.
6.12.1— Self Test
Upon power up, the controller goes through a system self test which checks for the presence of utility voltage on the
DC circuits. This is done to prevent damage if the installer mistakenly connects AC utility power sense wires into the
DC terminal block. If utility voltage is detected, the controller displays a warning message and locks out the generator,
thereby preventing damage to the controller. Remove power to the controller to clear this warning.
Utility voltage must be turned on and present at the N1 and N2 terminals inside the generator control panel for this test
to be performed and pass.
Before starting, complete the following:
1. Verify that the generator is OFF. A red LED above OFF on the control panel keypad illuminates to confirm that
the system is in the OFF mode.
2. Verify that the Main Circuit Breaker switch on the generator control panel is in the OFF (Open) position.
3. Turn off all circuit breakers/electrical loads that will be powered by the generator.
4. Check the engine crankcase oil level, coolant level, and fuel level, if necessary.
During initial start up only, the generator may exceed the normal number of start attempts and experience an “over
crank” fault. This is due to accumulated air in the fuel system during installation. Reset the control board and restart up
to two more times, if necessary. If unit fails to start, contact the local dealer for assistance.
6.12.2— Check Manual Transfer Switch Operation
Refer to the “Manual Transfer Operation” section of the owner’s manual for procedures.
NOTE: Also use the appropriate transfer switch owner’s manual for manual and automatic system test.
Do not attempt manual transfer switch operation until all power voltage supplies to the transfer switch
have been positively turned off. Failure to turn off all power voltage supplies will result in extremely
hazardous and possibly fatal electrical shock.
Display Reads:
Use UP ARROW or DOWN ARROW to
select either Yes or No.
Press ENTER.
Select YES to perform exercise at low speed. Select
NO to perform exercise at normal operating speed.
Display Reads:
Set Exercise Time.
Use UP ARROW or DOWN ARROW to
increment or decrement the hour. Press
ENTER.
Use UP ARROW or DOWN ARROW to
increment or decrement the minute.
Press ENTER.
Use UP ARROW or DOWN ARROW to
scroll to the day of the week. Press
ENTER.
In the AUTO mode, the engine starts and runs once
each week at the time and day specified. During the
exercise cycle, the unit runs approximately 12 minutes
and then shuts down. Transfer of loads to the generator
does not occur unless utility power fails.
To Next Page
Loading...
Need help?
General
