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HW4000 Portable Generator Owner’s Manual www.honeywellgenerators.com 11
Using Generator for Backup Power
Using Generator for Backup Power
If you will be using generator for backup power, generator
must be connected to building’s electrical system through
a transfer switch installed by a licensed electrician.
Before connecting to building’s electrical system, consult
your local utility company or a qualified electrician.
Improper connections to a building's electrical system can
be deadly.
Electrical current from generator to feedback into util-
ity lines. Such feedback may electrocute utility com-
pany workers or others who contact utility lines
during a power outage.
Electrical current can feedback into generator. When
utility power is restored, generator may explode,
burn, or cause fires in building's electrical system.
What is a transfer switch?
A transfer switch is a device that allows switching
from utility power to emergency generator power.
Transfer switch is either a manual switch, an auto-
matic switch or a combination of manual and auto-
matic. During a power outage, transfer switch
isolates emergency circuits from utility line, allowing
for efficient operation of generator without back-
feeding onto utility.