North Star 2900 - Manual (Page 8)

7
*Not recommended
CAUTION: Equipment damage can result from the
low voltage caused by using an extension cord with a
small wire size.
Use this chart to estimate the total load on your
generator.
For Determining Generator Load Requirements
Dev ice Running Watts
Air Conditioner (12,000 Btu) 1700 (b)
Battery Charger (20 Amp) 500
Belt Sander (3”) 1000
Chain Saw 1200
Circular Saw (6-1/2”) 900
Coffee Maker 1000
Compressor (1 HP) 2000 (b)
Compressor (3/4 HP) 1800 (b)
Compressor (1/2 HP) 1400 (b)
Curling Iron 700
Freezer 500 (b)
Dishwasher 1200
Edge Trimmer 500
Electric Nail Gun 1200
Electric Range (one element) 1500
Electric Skillet 1250
Furnace Fan (1/3 HP) 1200 (b)
Freezer 800 (c)
Hair Dryer 1200
Hand Drill (1”) 1100
Hand Drill (1/2”) 875
Hand Drill (3/8”) 500
Hand Drill (1/4”) 250
Hedge Trimmer 450
Home Computer 150 (a)
Impact Wrench 500
Jet Pump 800 (b)
Lawn Mower 1200
Light Bulb 100
Microwave Oven 700
Milk Cooler 1100 (b)
Oil Burner on Furnace 300
Oil Fired Space Htr (140,000 Btu) 400
Oil Fired Space Htr (85,000 Btu) 225
Oil Fired Space Htr (30,000 Btu) 150
Oven 4500
Paint Sprayer, Airless (1/3 HP) 600 (b)
Paint Sprayer, Airless (handheld) 150
Radio 200 (a)
Refrigerator 600 (c)
Slow Cooker 200
Submersible Pump (1-1/2 HP) 2800 (b)
Load Requirements Continued
Submersible Pump (1 HP)
2000 (b)
Submersible Pump (1/2 HP) 1500 (b)
Sump Pump 600 (b)
Table Saw (10”) 2000 (b)
Television 500 (a)
Toaster 1000
Vacuum cleaner 250
VCR 70 (a)
Water Heater 3000
Weed Trimmer 500
(a) Always use a voltage surge protector between
the generator and these voltage sensitive loads. To
order a surge protector call customer service at 1-
800-270-0810 and ask for item # 30793.
(b) Hard-starting motors require 3 to 5 times the
rated running watts.
(c) These loads may require up to 15 minutes to
restart due to its normal build up of compressor head
pressure.
NOTE: For extremely hard to start loads such as
air conditioners and air compressors, consult the
equipment dealer to determine the maximum wattage.
PRE-START PREPARATIONS
Your generator has been thoroughly tested prior to
shipment from the factory. A factory test report has
been included with this manual. However, damage
can occur during shipping, so be sure to check for
damaged parts, loose or missing nuts and bolts. If the
aforementioned problems occur, call customer service
at 1-800-270-0810.
GROUNDING - All units must be grounded. Drive
a 3/4” or 1” copper pipe or rod into the ground close to
the generator. The pipe/rod must penetrate moist
earth. Connect an approved ground clamp to the pipe.
Run a no. 12 Ga. wire from the clamp to the generator
ground screw. Do not connect to a water pipe or a
ground used by a radio system.
OPERATING SPEED
The generator must be run at the correct speed in
order to produce the proper electrical voltage and
frequency.
The output voltage should be checked to ensure
the generator is working properly subsequent to
connecting a load to the generator. Failure to do so
could result in damage to equipment plugged into the
unit and possible injury to the individual.
All engines have a tendency to slow down when a
load is applied. When the electrical load is connected
to the generator, the engine is more heavily loaded,
and as a result the speed drops slightly. This slight
decrease in speed, together with the voltage drop
within the generator itself, results in a slightly lower
voltage when the generator is loaded to its full capacity
than when it is running with no load. The slight
variation has no appreciable effect in the operation of
motors, lights and most appliances. Electronic
equipment and clocks will be affected if correct RPM is
not maintained. See Load vs. Output chart
Load Output
Percent of
Generator
Output
Speed
(RPM) Frequency
(Hz)
Generator
voltage at 120V
Receptacle
0 % 3720 62.0 129V
50 % 3600 60.0 120V
100 % 3540 59.0 115V