Checking Automatic Operation; Installation Summary; Shutting Generator Down While Under Load Or During A Utility Outage - Generac Power Systems 10 kW Owner's Manual

9. Verify fuel pressure while running. Record
running fuel pressure:________
10. Set generator MLCB (generator discon-
nect) to ON (CLOSED). Loads are now
powered by standby generator.
11. Turn on circuit breakers/electrical loads to
be supplied by generator one by one.
12. Connect a calibrated AC voltmeter and a
frequency meter across terminal lugs E1
and E2. Voltage should be approximately
240 volts and frequency should be approx-
imately 60 Hz. If voltage and frequency
are rapidly dropping as loads are applied,
generator may be overloading, or there
may be a fuel issue. Verify output current
measurement of loads and/or fuel pres-
sure.
13. Allow generator to run at full rated load for
20–30 minutes. Listen for unusual noises,
vibration, or other indications of abnormal
operation. Inspect for oil leaks, evidence
of overheating, etc.
14. Verify fuel pressure while under full load.
Record loaded
______________.
15. Turn off circuit breakers/electrical loads
when testing under load is complete.
16. Set generator MLCB (generator discon-
nect) to OFF (OPEN).
17. Allow engine to run at no-load for 2–5 min-
utes.
18. Press generator OFF button. Engine will
shut down.
NOTE: If fuel pressure under full load is below
minimum operating fuel pressure guideline,
generator may not function correctly. The fuel
pressure gauge needle should also remain
steady while testing. A fluctuating fuel pres-
sure gauge needle indicates gas piping may
be undersized or restricted. It may also indi-
cate a step-down gas regulator is too small, or
too close to unit.

Checking Automatic Operation

Proceed as follows to check system for cor-
rect automatic operation:
1. Verify generator is OFF.
2. Install front cover of transfer switch.
3. Turn on utility power supply to transfer
switch using the means provided (such as
a utility MLCB).
NOTE: Transfer switch will transfer to utility
position.
4. Set generator MLCB (generator discon-
nect) to ON (CLOSED).
5. Press generator AUTO button. The system
is now ready for automatic operation.
Installation Guidelines for 60 Hz Air-Cooled Generators
fuel pressure:
Control Panel Startup / Testing
6. Turn off utility power supply to transfer
switch.
The generator is ready for automatic opera-
tion. The engine will crank and start when
utility source power is turned off after a five
second delay (factory default setting). After
starting, transfer switch will connect load cir-
cuits to the standby side after a 5 or 30 sec-
ond delay (dealer programmable). See
Smart Start. Allow system to operate through
entire automatic sequence of operation.
With generator running and loads powered
by generator AC output, turn on utility power
supply to transfer switch. The following will
occur:
• After approximately 15 seconds (dealer
programmable), the transfer switch will
transfer loads to the utility power source.
• Approximately one minute after transfer,
engine will shut down.

Installation Summary

1. Verify installation has been performed
correctly as outlined by the manufacturer
and that it meets all applicable laws and
codes.
2. Test and verify correct operation of the
system as outlined in the appropriate
installation and owner's manuals.
3. Educate end-user on correct operation,
maintenance, and service call procedures.
Shutting Generator Down While
Under Load or During a Utility
Outage
DANGER
Automatic start-up. Disconnect utility power and
render unit inoperable before working on unit.
Failure to do so will result in death or serious injury.
IMPORTANT NOTE: To avoid equipment
damage, follow these steps, in order,
during utility outages. Shutdowns may be
required during utility outages to perform
routine maintenance or to conserve fuel.
To turn generator OFF:
1. Set utility MLCB to OFF (OPEN).
2. Set generator MLCB (generator discon-
nect) to OFF (OPEN).
3. Allow generator to run for cool-down for
approximately one minute.
4. Set generator to OFF at the controller.
5. Remove 7.5A fuse from controller.
To turn generator back ON:
1. Install 7.5A fuse in controller.
Cold
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