Operation
Automatic Transfer Switch Owner’s Manual
11
NOTE:
Do NOT proceed until generator AC output voltage
and frequency are correct and within stated limits. If the no-load
voltage is correct but no-load frequency is incorrect, the engine
governed speed may require adjustment. If no-load frequency
is correct but voltage is not, the voltage regulator may require
adjustment.
Generator Tests Under Load
1.
Turn OFF the utility power supply to the transfer switch
with whatever means provided (such as the utility main
line circuit breaker).
2.
Set the generator main circuit breaker to OFF or
OPEN.
3.
Manually actuate the transfer switch main contacts
to the emergency (Standby) position. See
. To start the generator, select the
MANUAL mode of operation. When engine starts,
let it stabilize for a few minutes.
4.
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. Frequency 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, overheating, etc., that might indi-
cate 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 main switch contacts back to UTILITY.
NOTE:
. 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.
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 in OFF mode.
2.
Install front cover of the transfer switch.
3.
Turn the utility power supply to the transfer switch
ON, using the utility main line circuit breaker.
4.
Set the generator main circuit breaker to ON.
5.
On the generator panel, select AUTO. The system
is now ready for automatic operation.
6.
Turn utility power supply to the transfer switch OFF.
With the generator ready for automatic operation, the
engine should crank and start when the utility source
power is turned OFF after a ten second delay (factory
default setting). After starting, the transfer 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.
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.
Shutting Generator Down While Under Load
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 the main utility disconnect OFF.
2.
Turn the main line circuit breaker (MLCB) on the
generator to OFF (OPEN).
3.
Let the generator run at no-load several minutes.
4.
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.
Set the MLCB on the generator to ON.
The system will now be operating in its automatic mode.
The main utility disconnect can be turned ON (CLOSED).
NOTE:
To shut the unit off, this complete process must
be repeated.
