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TRANSFER TO GENERATOR POWER SOURCE WHEN
UTILITY POWER FAILS
1. Set the generator’s 50 amp circuit breaker to its OFF
(or open) position.
2. Turn OFF the utility power supply to the transfer
switch using the means provided (such as a utility
main line circuit breaker or supplementary 70 amp
circuit breaker installed in main panel.
Do not attempt to activate the transfer switch manually
until all power voltage supplies to the switch have been
positively turned off. Failure to turn off all power voltage
supplies may result in extremely hazardous and
possibly fatal electrical shock.
3. Remove 4 hex bolts holding on transfer switch cover.
Remove cover.
4. Use the manual transfer handle inside the transfer
switch (attached to sidewall with wingnut) to move the
main contacts to their “Standby” position, i.e., loads
connected to the standby power source
(Figure 1)
.
Replace handle on side of box. Re-install transfer
switch cover.
5. Insert the NEMA 14-50 plug (from the power cord that
you have installed) into the mating receptacle on the
generator control panel.
6. Start the generator.
7. Let the engine stabilize and warm up for a few minutes.
8. Set the generator’s 50 amp circuit breaker to its’ ON
(or closed) position.
Figure 1 - Manual Transfer Switch Operation
9. Turn ON the utility power supply to the transfer switch
using the means provided (such as utility main line
circuit breaker) or supplementary 70 amp circuit
breaker you have installed in the main panel.
TRANSFER BACK TO UTILITY POWER SOURCE
When utility power has been restored, you will want to
transfer back to that source and shut down the generator.
This can be accomplished as follows:
1. Set the generator’s 50 amp circuit breaker to its OFF
(or open) position.
2. Let the engine run for a minute or two at no-load to
stabilize the internal temperatures.
3. Turn off the generator.
4. Turn OFF the utility power supply to the transfer
switch using the means provided (such as a utility
main line circuit breaker or the supplementary 70 amp
circuit breaker that was installed in the main panel).
Do not attempt to activate the transfer switch manually
until all power voltage supplies to the switch have
positively turned off. Failure to turn off all power voltage
supplies may result in extremely hazardous and
possibly fatal electrical shock.
5. Remove transfer switch cover.
6. Use manual transfer handle to move the main
contacts to their “utility” position, i.e., load connected
to the utility power source
(Figure 1).
Replace handle
on inside of transfer switch box. Replace transfer
switch cover.
7. Turn ON the utility power supply to the transfer switch
using the means provided (such as the utility main line
circuit breaker or the supplementary 70 amp circuit
breaker installed in the main panel.
8. Remove the NEMA 14-50 plug from the mating
receptacle on the generator control panel.
After utilizing the 5 ft. electrical power cord for operation with
the GUARDIAN
®
ULTRA SOURCE portable generator you
must remove it. Open the external connection box. Remove
the fasteners holding the Black, Red, White, and Green wires
in place. Remove wires from threaded lugs and from under
ground screw. Replace fasteners and ground screw. Loosen
the cable clamp and slide the power cord out of the external
connection box. Store the power cord with your GUARDIAN
®
ULTRA SOURCE portable generator.
7
Choose a lamp or light fixture located in a frequently
occupied area of the house as a signal light to tell
you when utility power has returned. This light
should be on a utility powered circuit only so it
operates independent of the generator.
MANUAL TRANSFER OPERATION USING GUARDIAN
®
PORTABLE GENERATOR