System Ground; Connecting To A Building's Electrical System; Don't Overload The Generator; Before Starting The Generator - Generac Power Systems GP Series Owner's Manual

Operation

2.4.1 SYSTEM GROUND

The generator has a system ground that connects the generator
frame components to the ground terminals on the AC output
receptacles.
Special Requirements
There may be federal, state, safety or health administration
regulations, local codes, or ordinances that apply to the intended
use of the generator.
Please 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.
2.4.2 CONNECTING TO A BUILDING'S ELECTRICAL
SYSTEM
Connections for standby power to a building's electrical system
must be made by a qualified electrician. The connection must
isolate the generator power from utility power or other alternative
power sources and must comply with all applicable laws and
electrical codes.
Grounding The Generator
Local electrical codes may require proper grounding of the unit
(Figure 8). For that purpose, connecting a 2.59mm stranded
copper wire to the grounding lug and to an earth-driven copper
or brass grounding rod (electrode) provides adequate protection
against electrical shock. However, local codes may vary widely.
Consult with a local electrician for grounding requirements in
the area.
Figure 8 - Grounding the Generator
10
Proper grounding of the generator will help prevent electrical
shock in the event of a ground fault condition in the generator or in
connected electrical devices. Proper grounding also helps dissipate
static electricity, which often builds up in ungrounded devices.

2.5 DON'T OVERLOAD THE GENERATOR

Overloading a generator in excess of its rated wattage capacity
can result in damage to the generator and to connected electrical
devices. Observe the following to prevent overloading the unit:
• 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 usually 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:
1. Figure the watts needed to start the largest motor.
2. Add to that figure the running watts of all other connected
loads.

2.6 BEFORE STARTING THE GENERATOR

Prior to operating the generator, engine oil and gasoline will need
to be added, as follows:

2.6.1 ADDING ENGINE OIL

Use no special additives. Select the oil's viscosity grade according
to the expected operating temperature (also see chart).
• Above 4° C, use SAE 30
• Below 4° C and down to -12° C, use 10W-30
• Below -12° C, use synthetic 5W-30
10W-30 10W -30
Synth etic 5W -30 Sy nthetic 5W-30
SA E 30 SAE 30