Operating instructions

Dayton Operating Instructions and Parts Manual
11
Models 5U933A, 5U934A, and 5U935A
Version B - For Reduction G016.J
®
105966
Installation (Continued)
(*) Always use starting watts (maximum VA), not running watts, when figuring correct electrical load.
(†) Motors of higher horsepower are not generally used.
Please check with appliance manufacturer for maximum wattage required.
Approximate Approximate Approximate Approximate
Starting Watts* Starting Watts* Starting Watts* Starting Watts*
Motor Approximate (Max. VA) (Max. VA) (Max. VA) (Max. VA)
HP Running Universal Motors Repulsion Capacitor Split Phase
Rating Watts (small appliance) Induction Motors Motors Motors
1/8 275 400 600 850 1200
1/4 400 500 850 1050 1700
1/3 450 600 975 1350 1950
1/2 600 750 1300 1800 2600
3/4 850 1000 1900 2600 †
1 1000 1250 2300 3000 †
1
1
/2 1600 1750 3200 4200 †
2 2000 2350 3900 5100 †
3 3000 † 5200 6800 †
CHART 1
4. Add watts and starting watts (maximum
VA) of all items. This total must not be
larger than the rated wattage of your
NOTE: The nameplate may not list
wattage. It may only list volts and amps.
The formula for finding wattage is: Volts x
Amps = Watts. For example: An appliance
nameplate states 3 amps at 120 volts. 3
amps x 120 volts = 360 watts.
3. Electric motors present a special
problem. They require up to 3-times
their rated wattage to start. Chart 1
below, shows starting watts (maximum
volt-amperes [VA]) for different size
motors. For example: an electric motor
nameplate states 5 amps at 120 volts. 5
amps x 120 volts = 600 watts running.
Multiply this figure by 3. This will show
the starting watts (maximum VA)
needed. 600 watts x 3 = 1800 watts
(VA) to start. When figuring the
generator load for motors, you must use
the starting watts (maximum VA) figure.
Do not use the running watts figure.
NOTE: Some motors require nearly the
same wattage to run as to start. These
items include saws, drills, hair dryers, and
food mixers. See Chart 2 for typical
appliance wattage examples.
TYPICAL ELECTRIC APPLIANCE WATTAGES
CHART 2
Starting
Running Watts
Equipment Watts (Max.VA)
Light bulb (100W) 100 100
Radio 150 150
Fan 200 600
Television 400 400
1/3 HP Furnace fan with blower 600 1800
Vacuum cleaner 600 750
1/3 HP Sump pump 700 2100
Refrigerator/freezer 800 2400
6" Circular saw 800 1000
Floodlight 1000 1000
1/2" Drill 1000 1250
Toaster/coffeemaker 1200 1200
Skillet 1200 1200
14" Chain saw 1200 1500
1/2 HP Water well pump 1000 3000
Hot plate/range (per burner) 1500 1500
10" Table saw 2000 6000
Water heater (storage-type) 5000 5000