Additional Information.10-12 - Generac Power Systems NP-50G Series Owner's Manual

Place the lever in the "Winter" position (25 - 30°F), so the hole
in the plastic tube is covered and the aluminum tube is opened.
As mentioned previously, the end of the aluminum tube is
positioned very close to the exhaust manifold. As the engine
is running and the exhaust system heats up, heated air is drawn
through the aluminum tube, which helps to prevent ice from
forming on the carburetor.
■ DO NOT OVERLOAD THE GENERATOR
You can read the rated wattage/amperage capacity of your gen¬
erator on the generator data decal (see "Identification Record"
on Page 3).
Applying electrical loads in excess of the unit's rated capac¬
ity will cause the engine-generator to automatically shutdown.
To avoid overloading, add up the wattage of all connected elec¬
trical lighting, appliance, tool and motor loads. This total should
not be greater than the generator's rated wattage capacity.
• Most lighting, appliance,, tool and motor loads indicate their
required watts on their nameplate or data plate. For light
bulbs, simply note the wattage rating of the bulb.
• If a load does not show its rated wattage, multiply that load's
rated VOLTS times AMPS to obtain WATTS.
• Induction type motors (such as those that run the vehicle's
furnace fan, refrigerator, air conditioner, etc.) need about 2-
1/2 time more watts of power for starting than for running
(for a few seconds during motor starting). Be sure to allow
for this when connecting electrical loads to the generator.
First, figure the watts needed to start electric motors in the
system. To that figure, add the running wattages of other
items that will be operated by the generator.
• Do not apply heavy electrical loads for the first two or three
hours of operation.
ADDITIONAL INFORMATION
This section discusses some the the engine protective devices,
overload protection and breaking in a new generator.
■ AUTOMATIC LOW OIL PRESSURE
SHUTDOWN_
The engine is equipped with a normally-closed (N.C.) oil pres¬
sure switch (Figure 5). Engine oil pressure holds the switch
open during cranking and operation. Should oil pressure drop
below a pre-set level, the switch contacts close and the engine
automatically shuts down.
WATTAGE REFERENCE GUIDE
RUNNING
WATTS
'Air Conditioner (12,000 Btu).1700
Battery Charger (20 amp).500
Belt Sander (3").1000
Chain Saw.1200
Circular Saw (6-12")...800 to 1000
Coffee Maker.1000
'Compressor (1HP).2000
'Deep Freeze.500
Disc Sander (9").1200
Electric Range (one element) .1500
Electric Skillet.1250
'Furnace Fan (1/3 HP).1200
Hair Dryer.1200
Hand Drill (1").'.1100
Hedge Trimmer.450
Impact Wrench.500
RUNNING
WATTS
Lawn Mower.1200
Light Bulb. 100
Microwave Oven.700
'Milk Cooler. 1100
Oil Burner on Furnace.300
Oil Fired Space Heater (140,000 Btu). 400
'Paint Sprayer, Airless (1/3 HP).600
Radio.50 to 200
'Refrigerator.600
Slow Cooker.200
'Submersible Pump (1-1/2 HP).2800
'Submersible
Pump (1 HP)
.2000
'Table Saw (10").1750 to 2000
Television.1750 to 2000
* Allow 2-1/2 times the listed watts for starting these devices.
Recreational Vehicle Generator