Electricalsystem; Don't Overloadthe Generator; Wattagereferenceguide; Operation - Generac GP Series Manual Del Proprietário

2.4.2 CONNECT/NG THEGENERATOR TO A BU/LD/NG'$
ELECTR/CAL SYSTEM
Connectionsfor standby power to a building's electrical system
must be made by a qualified electrician and in strict compliance
with all national and local electrical codes and laws. The
connection must isolatethe generatorpower from utility power or
other alternativepowersources.
NOTE:
Because the generatorequipment ground is bonded to the AC
neutral wires in the generator(see Figure 8), either a 3-pole
transfer switch or a 2 pole transfer switch with a switching
neutral kit is requiredto connectthis generatorto a building
load. in this application the generator becomes a separately
derived system (see NEC 250.20 (D)), and must be grounded
in accordance with the national or local electrical code
requirements.
Grounding theGenerator ina BuildingStandby A pplication
_ he National Electrical Code requires that the
frame and external electrically conductive parts
of this generator be properly connected to an
approved earth ground.
Local electrical codes may also require proper grounding of the
unit (Figure 10). For that purpose, connecting a No. 10 AWG
(AmericanWire Gauge)strandedcopper wire to the groundinglug
and to an earth=drivencopper or brass grounding rod (electrode)
provides adequate protection against electrical shock. However,
local codes may vary widely. Consultwith a local electrician for
grounding requirements in the area.
Proper groundingof the generator will help preventelectrical
shockin the event of a groundfault condition in the generatoror in
connectedelectricaldevices. Propergroundingalso helps dissipate
static electricity,which often builds up in ungroundeddevices.
Figure 10 - Grounding the Generator
2.5 DON'T OVEBLOAD THEGENEBATOB
Overloadinga generator in excess of its rated wattage capacity
can result in damageto the generatorand to connectedelectrical
devices. Observethe following to preventoverloadingthe unit:
* Add up the total wattageof all electricaldevicesto be connected
at one time. This total should NOT be greater than the
generator'swattage 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 affixedto the device.
* If the appliance,toot or motor does not give wattage, multiply
volts times ampererating to determinewatts (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 sureto allowfor high startingwattagewhen
selectingelectrical devicesto connect to the generator:
1. Figurethe watts neededto start the largest motor.
2. Add to that figure the running watts of all other connected
loads.
The WattageReferenceGuide is providedto assist in determining
how many items the generatorcan operateat one time.
NOTE:
All figures are approximate.See data label on appliance for
wattage requirements.
2.6 WATTAGE B EFEBENCEGUIDE
Device ................................... Running Watts
*Air Conditioner (12,000 Btu).......................... 1700
*Air Conditioner (24,000 Btu).......................... 3800
*Air Conditioner (40,000 Btu).......................... 6000
Battery Charger(20 Amp) .............................. 500
Belt Sander (3") .................................... 1000
Chain Saw ........................................ 1200
Circular Saw (6-1/2") ........................... 800 to 1000
*Clothes Dryer (Electric) ............................. 5750
*Clothes Dryer (Gas) ................................. 700
*Clothes Washer ................................... 1150
Coffee Maker ...................................... 1750
*Compressor (1 HP)................................. 2000
*Compressor (3/4 HP) ............................... 1800
*Compressor (1/2 HP) ............................... 1400
CurlingIron......................................... 700
*Dehumidifier ....................................... 650
Disc Sander (9") .................................... 1200
EdgeTrimmer....................................... 500
Electric Blanket...................................... 400
Electric Nail Gun.................................... 1200
Electric Range(per element)........................... 1500
ElectricSkillet...................................... 1250
*Freezer............................................ 700
*Furnace Fan (3/5 HP) ................................ 875
*Garage Door Opener............................ 500 to 750
Hair Dryer......................................... 1200
Hand Drill .................................... 250 to 1100