electrical

generator Capacity

Make sure the generator can supply enough continuous (run- ning) and surge (starting) watts for the items you will power at the same time. Follow these simple steps.

1. Select the items you will power at the same time.

2. Totalthe continuous (running) watts of these items. This is the amount of power the generator must produce to keep the items running. See the wattage reference chart at right.

3. Estimate how many surge (starting) watts you will need. Surge wattage is the short burst of power needed to start electric motor-driven tools or appliances such as a circular saw or refrigerator. Because not all motors start at the same time, total surge watts can be estimated by adding only the item(s) with the highest additional surge watts to the total rated watts from step 2.

Example:

 

 

 

 

 

 

Tool or Appliance

 

Continuous

 

Surge

 

 

 

(Running) Watts

(Starting) Watts

 

 

 

 

 

 

 

 

 

Window AC,

 

1200

 

1800

 

10,000 BTU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refrigerator

 

700

 

2200

 

 

 

 

 

 

 

 

1/3 HP Well Pump

 

1000

 

2000

 

 

 

 

 

 

 

 

27 in. Television

 

500

 

0

 

 

 

 

 

 

 

 

Light (75 Watts)

 

75

 

0

 

 

 

 

 

 

 

 

 

3475 Total

2200 Highest

 

 

Running Watts

Surge Watts

Total Continuous (Running) Watts

3475

 

Plus Highest Additional Surge Watts

+ 2200

 

 

 

 

 

Equals Total Generator Output Required

5675

 

POWER MANAGEMENT

To prolong the life of the generator and attached devices, it is important to take care when adding electrical loads to the generator. There should be nothing connected to the generator outlets before starting its engine. The correct and safe way to manage generator power is to sequentially add loads as follows:

1.With nothing connected to the generator, start the engine as described later in this manual.

2.Plug in and turn on the first load, preferably the largest load you have.

3.Permit the generator output to stabilize (engine runs smoothly and attached device operates properly).

4.Plug in and turn on the next load.

5.Again, permit the generator to stabilize.

6.Repeat steps 4 and 5 for each additional load.

Never add more loads than the generator capacity. Take special care to consider surge loads in generator capacity as previously described.

CAUTION:

Do not overload the generator’s capacity. Exceeding the generator’s wattage/amperage capacity can damage the generator and/or electrical devices connected to it.

 

Typical

Typical

Tool or Appliance

Continuous*

Surge*

­(Running)

­(Starting)

 

 

Watts

Watts

 

 

 

 

Essentials

 

 

 

 

 

 

 

Light Bulb − 75 Watt

75

75

 

 

 

Refrigerator/Freezer

700

2200

 

 

 

Sump Pump − 1/2 HP

1050

2200

 

 

 

Water Well Pump − 1/3 HP

1000

1500

 

 

 

 

Electric Water Heater

4000

0

 

 

 

 

Heating/Cooling

 

 

 

 

 

 

Furnace Fan − 1/2 HP

800

2350

 

 

 

Window AC − 10,000 BTU

1200

1800

 

 

 

 

Space Heater

1800

0

 

 

 

 

Kitchen

 

 

 

 

 

 

 

Microwave Oven − 1000 Watt

1000

0

 

 

 

 

Coffee Maker

1000

0

 

 

 

 

Electric Stove − Single Element

2100

0

 

 

 

 

Toaster Oven

1200

0

 

 

 

 

Family Room

 

 

 

 

 

 

 

VCR

100

0

 

 

 

 

CD/DVD Player

100

0

 

 

 

 

Stereo Receiver

450

0

 

 

 

 

Color Television − 27 in.

500

0

 

 

 

 

Other

 

 

 

 

 

 

 

Security System

500

0

 

 

 

 

Curling Iron

1500

0

 

 

 

Garage Door Opener − 1/2 HP

875

2350

 

 

 

 

Hair Dryer − 1/2 HP

1250

0

 

 

 

 

DIY/Job Site

 

 

 

 

 

 

 

Quartz Halogen Work Light

1000

0

 

 

 

Airless Sprayer − 1/3 HP

600

1200

 

 

 

 

Reciprocating Saw

960

0

 

 

 

Electric Drill − 1/2 HP

600

900

 

 

 

Circular Saw − 7-1/4 in.

1400

2300

 

 

 

Miter Saw − 10 in.

1800

1800

 

 

 

Planer/Jointer − 6 in.

1800

1800

 

 

 

Table Saw/Radial Arm Saw − 10 in.

2000

2000

 

 

 

Air Compressor − 1 HP

1600

4500

 

 

 

 

*Wattages listed are approximate. Check tool or appliance for actual wattage.

Page 9 — English

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Homelite HGCA3000 manuel dutilisation Generator Capacity, Power Management, Example, English