Electrical – Homelite UT903611 User Manual

Page 13

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Page 9 — English

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. Total the 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

(Running) Watts

Surge

(Starting) Watts

Window AC,
10,000 BTU

1200

1800

Refrigerator

700

2200

1/3 HP Well Pump

1000

2000

27 in. Television

500

0

Light (75 Watts)

75

0

3475 Total

Running Watts

2200 Highest

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.

Application/Equipment

Estimated

Run Watts

Estimated

Starting

Watts

Emergency / Home Standby
Clock Radio

50

50

Lights (qty. 4 x 75 W)

300

300

Refrigerator

700

2200

Furnace Fan

800

2350

Water Well Pump

1000

1500

Microwave

1000

1000

Sump Pump

1050

2200

Electric Range (per element)

2100

2100

Job Site
Electric Drill − 1/2 HP

600

900

Airless Sprayer − 1/3 HP

600

1200

Quartz Halogen Work Light

1000

1000

Reciprocating Saw

960

1920

Air Compressor − 1 HP

1600

4500

Circular Saw − 7-1/4 in.

1400

2300

Planer/Jointer − 6 in

1800

1800

Miter Saw − 10 in.

1800

1800

Table Saw/Radial Arm Saw − 10 in.

2000

2000

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

ELECTRICAL

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