Generac Power Systems 8 kW LP - Manual (Page 152)

11. Let the generator run at full rated load for 20-30 minutes.
Listen for unusual noises, vibration or other indications
of abnormal operation. Check for oil leaks, evidence of
overheating, etc.
12. When testing under load is complete, turn off electrical
loads.
13. Set the generator main circuit breaker to its OFF (or
open) position.
14. Let the engine run at no-load for a few minutes.
15. Set the AUTO-OFF-MANUAL switch to OFF. The engine
should shut down.
checkinG automatic operation
To check the system for proper automatic operation,
proceed as follows:
1. Set generator main circuit breaker to its OFF (or open)
position.
2. Check that the AUTO-OFF-MANUAL switch is set to OFF.
3. Turn off the utility power supply to the transfer switch,
using means provided (such as a utility main line circuit
breaker).
4. Manually set the transfer switch to the UTILITY position, i.e.,
load terminals connected to the utility power source side.
5. Turn on the utility power supply to the transfer switch,
using the means provided (such as a utility main line
circuit breaker).
6. Set the AUTO-OFF-MANUAL switch to AUTO. The
system is now ready for automatic operation.
7. Turn off the utility power supply to the transfer switch.
With the AUTO-OFF-MANUAL switch at AUTO, the
engine should crank and start when the utility source
power is turned off. After starting, the transfer switch
should connect load circuits to the standby side. Let
the system go through its entire automatic sequence
of operation.
With the generator running and loads powered by
generator AC output, turn ON the utility power supply
to the transfer switch. The following should occur:
• After about fifteen seconds, the switch should
transfer loads back to the utility power source.
• About one minute after retransfer, the engine should
shut down.
SettinG the eXerciSe timer
This generator is equipped with an exercise timer.
Once it is set, the generator will start and exercise
every seven days, on the day of the week and at the
time of day specified. During this exercise period,
the unit runs for approximately 12 minutes and then
shuts down. Transfer of loads to the generator output
does not occur during the exercise cycle unless utility
power is lost.
PROCEDURE 8 kW UNITS:
A switch on the control panel (see Figure 3.1) permits
selection of the day and time for the system to exercise.
At the chosen time, perform the following sequence to
select the desired day and time of day the system will
exercise. Remember, seasonal time changes affect the
exercise settings.
1. Verify that the AUTO-OFF-MANUAL switch is set to
AUTO.
2. Press and hold the “Set Exercise” switch for several
seconds. All the red LED’s will stop flashing immediately
and the generator will start.
3. The generator will start and run for approximately 12
minutes and then shut down. The exerciser is now set to
run at this time of day each week. Example: If the “Set
Exercise” is pressed on Saturday afternoon at 2:00 p.m.
the generator will start and exercise for approximately
12 minutes every Saturday at 2:00 p.m.
10-20 kW - INSTALLATION ASSISTANT:
Upon first power up of the generator, the display inter-
face will enter an installation assistant. The assistant
will prompt the user to set the minimum settings to
operate. These settings are simply: “Current Date/Time”
and “Exercise Day/Time”. The maintenance intervals
will be initialized when the exercise time is entered.
The exercise settings can be changed at any time
via the “EDIT” menu (see Appendix, “Menu System”).
If the 12 volt battery is disconnected or the fuse
removed, the Installation Assistant will operate upon
power restoration. The only difference being that the
display will only prompt the customer for the current
Time and Date.
ALL UNITS:
note: if the installer tests the generator prior to
installation, press the “enter” key to avoid set-
ting the exercise time. this will ensure that the
customer will still be prompted to enter an exercise
time when the unit is first powered up.
note: the exerciser will only work in the auto
mode and will not work unless this procedure
is performed. the current date/time will need to
be reset every time the 12 volt battery is discon-
nected and then reconnected, and/or when the
fuse is removed.
Part 5
Page 150
OPERATIONAL TESTS
AND ADJUSTMENTS
sEctioN 5.1
sYstEm fuNctioNal tEsts