Generac Power Systems G0074000, Руководство пользователя

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Operation (RXUW Models Only)
Automatic Transfer Switch Owner’s Manual 19
5. Set the generator main circuit breaker to ON or
CLOSED. The generator now powers all LOAD
circuits. Check generator operation under load as
follows:
• Turn on electrical loads to the full rated
wattage/amperage capacity of the generator.
DO NOT OVERLOAD.
• With maximum rated load applied, check
voltage and frequency across transfer switch
terminals E1 and E2. Voltage should be
greater than 230 VAC (240 VAC system);
frequency should be greater than 59 Hz.
• Verify the gas pressure remains within
acceptable parameters (see the generator
Installation manual).
• Let the generator run under rated load for at
least 30 minutes. With unit running, watch for
unusual noises, vibration, or overheating that
might indicate a problem.
6. When checkout under load is complete, set main
circuit breaker of the generator to OFF or OPEN.
7. Let the generator run at no-load for several minutes.
Then, shut down by selecting OFF.
8. Move the main switch contacts back to the utility
position.
NOTE: See Manual Operation . Handle and operating
lever of transfer switch should be in down position.
9. Set the utility service disconnect circuit breaker of
the transfer switch to ON or CLOSED.
10. The system is now set for fully automatic operation.
Checking Automatic Operation
To check the system for proper automatic operation,
proceed as follows:
1. Verify generator is OFF.
2. Set the utility service disconnect circuit breaker of
the transfer switch to OFF or OPEN.
3. Verify switch is de-energized.
4. Install front cover of the transfer switch.
5. Set the utility service disconnect circuit breaker of
the transfer switch to ON or CLOSED.
6. Set the generator main circuit breaker to ON.
7. On the generator panel, select AUTO. The system
is now ready for automatic operation.
8. Set the utility service disconnect circuit breaker of
the transfer switch to OFF or OPEN.
With the generator ready for automatic operation, the
engine should crank and start when the utility source
power is turned OFF after a five second delay (factory
default setting). After starting, the transfer switch should
connect load circuits to the standby side after a five (5)
second warm-up delay. Let the system operate through
its entire automatic sequence of operation.
NOTE: Timer durations may differ between generators
and settings.
With the generator running and loads powered by
generator AC output, set the utility service disconnect
circuit breaker of the transfer switch to ON or CLOSED.
The following should occur:
• After approximately 15 seconds, the switch should
transfer loads back to the utility power source.
• Approximately one minute after re-transfer, the
generator should shut down.
With the generator in the AUTOMATIC mode, the system
is now set for fully automatic operation.
Installation Summary
1. Verify the installation has been properly performed
as outlined by the manufacturer and that it meets
all applicable laws and codes.
2. Verify proper operation of the system as outlined in
the appropriate installation and owner’s manuals.
3. Educate the end-user on the proper operation,
maintenance and service call procedures.
NOTE: The Utility Power Circuit Breaker in the transfer
switch must be turned OFF to simulate a utility outage.
Shutting off the main disconnect in a subpanel connected
to the transfer switch will NOT simulate an outage.
Shutting Generator Down While
Under Load or During a Utility Outage
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 disconnect) to
OFF (OPEN).
3. Allow generator to run for cool-down for approxi-
mately 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.
(000191)
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.