Honeywell HW4000 User Manual

HW4000 Portable Generator Owner’s Manual

11

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.

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.