Porter-Cable CH250 instruction manual Application Guide

Page 16

WATTAGE CALCULATIONS

STARTING WATTAGE REQUIREMENTS

1.Some appliances and tools will list on the motor name plate the starting and running voltage and amperage requirements. Use the following formula to convert voltage and amperage to wattage:

Volts X Amp = Watts

120 volts x 10 amps = 1200 watts

2.To determine the approximate starting wattage requirement for most appliances and tools with inductive type motors, multiply the wattage that was calculated by 2 to 4 times to assure adequate generator capacity. If the nameplate information is not available use the values on the following chart as a guide.

3.Remember that the starting and running wattage for resistive loads are the same. (Example: a 100 watt light bulb requires only 100 watts to start.) Most resistive loads will be listed in wattage.

Application Guide

To select the right generator for your needs, total the wattage of the items to be run at the same time.

 

100

250

Wattage

2000

2500

3000

Run

4500

5000

Start

6500

7000

7500

Electric Appliance

500

1000

1500

3500

4000

5500

6000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3/8" Hand Drill

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contractor

Jigsaw

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Demolition Hammer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/3 HP Airless Sprayer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6" Bench Grinder

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Belt Sander

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7 1/4" Circular Saw

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Light Bulb

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Home Security

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Relief

Television

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Microwave

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Emergency

Toaster Oven

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clothes Washer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Portable Heater (5,000 BTU)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Furnace Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refrigerator/Freezer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sump Pump

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water Heater

 

Air Conditioner (20,000 BTU)

Recreational

12V DC Battery Charger

Radio

Slow Cooker

Electric Blanket

Electric Skillet

Coffee Maker

Small Refrigerator

 

The wattage ratings shown are averages. Wattage requirements may vary with different brands of appliances.

16 — ENG

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Contents Instruction Manual Generator Specification ModelWarranty Important Safety Instructions Safety Guidelines DefinitionsRisk of Electrocution and Fire Risk of Electrocution and Fire cont’d Risk of Fire AreaRisk of Breathing Inhalation Hazard Risk of Unsafe Operation GeneratorRisk of Moving Parts Risk of HOT SurfacesRisk from Lifting Assembly Remove Generator from CartonGrounding the Generator Obtaining Electricity from the GeneratorOperation Before Start UPKnow Your Generator Generator CapacityConnecting Electrical Loads Stopping EngineMaintenance Engine MaintenanceGenerator Maintenance General RecommendationsStorage Engine PreparationWattage Calculations Determining Wattage RequirementsApplication Guide Household Wattage Calculator Appliance or Load Device Typical Device Wattage TotalTroubleshooting Guide Problem Cause CorrectionENG Generator Quick Facts