Special Requirements
Safety and Health Administration (OSHA) regulations,
local codes, or ordinances that apply
to the intended use of the generator.
Consult a qualified electrician, electrical
inspector, or the local agency having jurisdiction:
• In some areas, generators are required to
be registered with local utility companies.
• If the generator is used at a construction
site, there may be additional regulations
which must be observed.
Connecting the Generator to a
Building Electrical System
It is recommended to use a manual transfer
switch when connecting directly to a building
electrical system. Connecting a portable generator
to a building electrical system must be
made in strict compliance with all national and
local electrical codes and laws, and be completed
by a qualified electrician.
Figure 3-1. Grounding the Generator
Know Generator Limits
Overloading a generator can result in damage
to the generator and connected electrical
devices. Observe the following to prevent
overload:
• Add up the total wattage of all electrical
devices to be connected at one time. This
total should NOT be greater than the generator's
wattage capacity.
• The rated wattage of lights can be taken
from light bulbs. The rated wattage of tools,
appliances, and motors can be found on a
data label or decal affixed to the device.
• If the appliance, tool, or motor does not
give wattage, multiply volts times ampere
rating to determine watts (volts x amps =
watts).
• Some electric motors, such as induction
types, require about three times more watts
of power for starting than for running. This
surge of power lasts only a few seconds
when starting such motors. Make sure to
allow for high starting wattage when selecting
electrical devices to connect to the generator:
10
1. Figure the watts needed to start the largest
motor.
2. Add to that figure the running watts of all
other connected loads.
The Wattage Reference Guide is provided to
assist in determining how many items the generator
can operate at one time.
NOTE: All figures are approximate. See data
label on appliance for wattage requirements.
Table 4. Wattage Reference Guide
Device
Air Conditioner (12,000 Btu)
Air Conditioner (24,000 Btu)
Air Conditioner (40,000 Btu)
Battery Charger (20 Amp)
Belt Sander (3")
Chain Saw
Circular Saw (6-1/2")
Clothes Dryer (Electric)
Clothes Dryer (Gas)
Clothes Washer
Coffee Maker
Compressor (1 HP)
Compressor (3/4 HP)
Compressor (1/2 HP)
Curling Iron
Dehumidifier
Disc Sander (9")
Edge Trimmer
Electric Blanket
Electric Nail Gun
Electric Range (per element)
Electric Skillet
Freezer
Furnace Fan (3/5 HP)
Owner's Manual for Petrol Generator
Running
Watts
1700
3800
6000
500
1000
1200
800 to 1000
5750
700
1150
1500
2000
1800
1400
700
650
1200
500
400
1200
1500
1250
700
875