Install Manual

Control Panel
Installation Guidelines for Air-Cooled Generators 37
7.3.2— Interconnect System Self Test Feature
Upon power up, the controller will go through a system self test which will check 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 will display a warning message, indicating a mis-wire,
and lock out the generator, preventing damage to the controller. Power to the controller must be removed 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.
NOTE: The generator is to be run with all appropriate panels in place, including during troubleshooting by a
technician.
7.3.3— Before Starting
Complete the following:
1. Ensure that the generator is OFF.
2. Set the generator’s main circuit breaker to the OFF (or OPEN) position.
3. Turn off all breakers that will be powered by the generator.
4. Check the engine crankcase oil level and, if necessary, fill to the dipstick FULL mark with the recommended oil.
Do not fill above the FULL mark.
5. Check the fuel supply. Gaseous fuel lines must have been properly purged and leak tested in accordance with
applicable fuel-gas codes. All fuel shutoff valves in the fuel supply lines must be open.
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 by pushing the
OFF button and ENTER key, and restart up to two more times if necessary. If unit fails to start, contact a local dealer for
assistance.
7.4 — Check Manual Transfer Switch Operation
Refer to the “Manual Transfer Operation” section of the owner’s manual for procedures.
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 volt-
age supplies will result in extremely hazardous and possibly fatal electrical shock.
7.5 — Electrical Checks
Complete electrical checks as follows:
1. Ensure that the generator is OFF.
2. Set the generator’s main circuit breaker to the OFF (or OPEN) position.
3. Turn OFF all circuit breakers/electrical loads that will be supplied by the generator.
4. Turn on the utility power supply to the transfer switch using the means provided (such as a utility main line circuit
breaker).
The transfer switch is now electrically “hot.” Contact with “hot” parts will result in
extremely hazardous and possibly fatal electrical shock. Proceed with caution.
5. Use an accurate AC voltmeter to check utility power source voltage across transfer switch terminals N1 and N2.
Nominal line-to-line voltage should be 240 volts AC. If it’s not, verify AC output and wiring from utility source to
N1 and N2 lugs at transfer switch.
6. Check utility power source voltage across terminals N1 and the transfer switch neutral lug; then across terminal
N2 and neutral. Nominal line-to-neutral voltage should be 120 volts AC. If it’s not, verify AC output and wiring
from utility source to N1 and N2 lugs at transfer switch.

