Generator Tests Under Load; Checking Automatic Operation; Testing Overload Prevention Control Board (Opcb); Installation Summary - Generac RTSR400A3 El Manual Del Propietario

6. Set the generator's main circuit breaker (CB1) to its OFF or
OPEN position.
7. On the generator panel, select the OFF mode to shut down the
generator.
Do NOT proceed until generator AC output voltage and frequen-
cy are correct and within stated limits. If the no-load voltage is
correct but no-load frequency is incorrect, the engine governed
speed probably requires adjustment. If no-load frequency is
correct but voltage is not, the voltage regulator may require
adjustment.

3.4 GENERATOR TESTS UNDER LOAD

1. Set the generator's main circuit breaker to its OFF or OPEN
position.
2. Manually actuate the transfer switch main contacts to their
emergency (Standby) position. Refer to "Manual Operation".
3. To start the generator, select the MANUAL mode op operation.
When engine starts, let it stabilize for a few minutes.
4. Turn the generator's main circuit breaker to the ON or CLOSED
position. 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 fre-
quency across transfer switch terminals E1 and E2. Voltage
should be greater than 230 volts (240VAC system); fre-
quency should be greater than 59 Hz.
• Let the generator run under rated load for at least 30 minutes.
With unit running, listen for unusual noises, vibration, over-
heating, etc., that might indicate a problem.
5. When checkout under load is complete, set main circuit
breaker of the generator to the OFF or OPEN position.
6. Let the generator run at no-load for several minutes. Then,
shut down by selecting the OFF mode.
7. Move the switch's main contacts back to the UTILITY position.
For example, load connected to utility power supply. Refer to
"Manual Operation". Handle and operating lever of transfer
switch should be in down position.
8. Turn on the utility power supply to transfer switch, using
whatever means provided (such as a utility main line circuit
breaker). The utility power source now powers the loads.
9. Select the generator's OFF mode to shut down the generator.
The system is now set for fully automatic operation.

3.5 CHECKING AUTOMATIC OPERATION

To check the system for proper automatic operation, proceed as
follows:
1. Ensure that the generator is in it's OFF mode.
2. Install front cover of the transfer switch.
3. Turn ON the utility power supply to the transfer switch, using
the means provided (such as a utility main line circuit break-
er).
Transfer Switch will transfer back to utility position.
NOTE:
NOTE:
4. Set the generator's main circuit breaker to its ON (or CLOSED)
position.
5. On the generator panel, select the AUTO mode. The system is
now ready for automatic operation.
6. Turn OFF the utility power supply to the transfer switch.
With the generator ready for automatic operation, the engine should
crank and start when the utility source power is turned OFF after a
10 second delay (factory default setting). After starting, the trans-
fer switch should connect load circuits to the standby side after
a five (5) second delay. Let the system operate through its entire
automatic sequence of operation.
3.6 TESTING OVERLOAD PREVENTION
CONTROL BOARD (OPCB)
A Test pushbutton is provided on the bottom of the OPCB to test
the operation of the load shed functions. The Test button will work
when the ATS is in the Utility or the Generator position.
1. Turn the Utility supply on to the ATS.
2. Press the TEST pushbutton on the OPCB.
3. Verify that all of the connected loads to be "shed" become
disabled. The method of verification will depend on the type of
load.
4. After five (5) minutes verify AC 1 and Load 1 are energized
Status LED AC 1 and Load 1 is ON.
5. After another 15 seconds, verify AC 2 and Load 2 are ener-
gized Status LED AC 2 and Load 2 are ON.
6. After another 15 seconds, verify Load 3 is energized Status
Load 3 is ON.
7. After another 15 seconds, verify Load 4 is energized Status
Load 4 is ON.

3.7 INSTALLATION SUMMARY

1. Ensure that the installation has been properly performed as
outlined by the manufacturer and that it meets all applicable
laws and codes.
2. Test and confirm 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.
Important! To turn the generator off during utility outages to
perform maintenance, or conserve fuel, follow these important
steps:
To turn the generator OFF (while running in AUTO and online):
1. Turn OFF (or OPEN) the main Utility disconnect.
2. Turn OFF (or OPEN) the Main Line Circuit Breaker (MLCB) on
the generator.
3. Turn the generator OFF.
To turn the generator back ON:
1. Put the generator back into AUTO and allow to start and
warm-up for a few minutes.
2. Turn ON (or CLOSE) the MLCB on the generator.
The system will now be operating in its automatic mode. The main
utility disconnect can be turned ON (or CLOSED), but to shut the
unit off, this complete process must be repeated.
Operation
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