Guardian Technologies 004583-0 - Manual (Page 26)

6.2 TRANSFER TO GENERATOR POWER
SOURCE WHEN UTILITY POWER
FAILS
1. Move generator to within approximately 10 feet of the power inlet
box. Connect ground strap to the generator’s grounding lug and
to the grounding rod.
2. Open the door of the Manual Transfer Switch. Slide the
mechanical interlock connecting the 60 Amp and 50 Amp circuit
breakers at the top of the panel to turn “Off” the “Utility” circuit
breaker. Both circuits will be in the “Off” position.
3. Flip the “Standby” circuit breaker handle to the “On” position.
Close the door of the Manual Transfer Switch.
4. Open the power inlet box. Insert and lock the 50 Amp female
receptacle into the male receptacle in the external connection
box. Insert the 50 Amp plug into the 50 Amp NEMA 14-50
receptacle located on the underside of the generator’s control
panel. A retaining clip is supplied on the control panel. Secure the
retaining clip over the end of the plug. The retaining clip ensures
that the plug remains in place during generator operation.
5. Before starting the generator, verify the 50 Amp circuit breaker on
the generator’s control panel is in the “Off” or “Open” position.
6. Start the generator and allow it to warm up for a couple of
minutes. Switch the 50 Amp circuit breaker on the generator
control panel to the “ON” or “Closed” position.
7. The generator is now supplying power to the load center circuits
in the manual transfer switch.
6.3 TRANSFER BACK TO UTILITY POWER
SOURCE
When utility power has been restored, you will want to transfer back
to that power source and shut down the generator. This can be
accomplished as follows:
1. Switch the 50 Amp circuit breaker on the generator control panel
to the “OFF” or “Open” position.
2. Release the retainer clip from the NEMA 14-50 plug and remove
the plug from the outlet on the generator. Twist and remove
the 50 Amp female receptacle from the power inlet box. Close
and lock the box. Coil the power cord and place it with the
generator.
3. After the generator has run for a couple minutes to cool down,
turn off the generator.
4. Open the door of the Manual Transfer Switch and slide the
mechanical interlock to turn “OFF” the “STANDBY” circuit
breaker. Both circuit breakers will be in the “OFF” position.
5. Flip the “UTILITY” circuit breaker handle to the “ON” position.
Close the door of the Manual Transfer Switch.
6. The Utility is now supplying power.
7. Disconnect the ground strap from the grounding rod and the
generator’s grounding lug. Retain the ground strap with the
generator. Return the generator to its storage location.
Choose a lamp or light fixture located in a frequently
occupied area of the building as a signal light to tell
you when utility power has been restored. This light
should be on a utility powered circuit only, so it operates
independent of the generator.
Section 6 — Operation of Generator with Manual Transfer Switch
Portable Generator System
24