Generac Portable Products Power Transfer System
GENERAL SAFETY
INFORMATION
1.A licensed electrician or qualified professional (referred to herein as “installer”) must install the power transfer system per local code.
2.During installation, the installer is required to remove the cover from the building power distribution panel (referred to herein as a ‘load center’.) To reduce the risk of electrical shock, the Main circuit breaker must be turned OFF while the load center cover is removed.
3.DO NOT OVERLOAD THE GENERATOR. Overloading a generator in excess of its rated wattage capacity will trip generator circuit breakers.
4.Always plug the connecting cord set into the connection box and generator BEFORE starting the generator. Always shut the generator down before detaching the cord set.
5.Portable generators attached to this Power Transfer System must be operated outside, in accordance with warnings and instructions found in the generator’s Owner’s Manual.
PLAN THE INSTALLATION
The installer and the homeowner decide which circuits are to be powered by the generator during a utility power outage:
•The plan should ensure that no single circuit load exceeds 15 Amps.
•The plan should also identify circuits that exceed the 15 Amp maximum.
•During generator operation, the homeowner should use only necessary household items and to alternate use of larger loads, such as water pump or electric skillet. The installer will instruct the homeowner in appropriate load management techniques.
Three methods of determining loads are given here:
Measure Actual Loads
The installer uses a
Sum Loads from Data Plates
The installer inspects each desired device, notes current consumption found on labels on each appliance, then adds all loads on each circuit:
•The rated current of appliances and motors can usually be found on a data plate or decal affixed to the device.
•The rated wattage of lights can be taken from light bulbs.
•Some electric motors, such as induction types, require about three times more power for starting than for running. This surge of power lasts for only a few seconds when starting such motors. Be sure to allow for this high starting load.
Estimate Loads
The third method estimates total circuit loads based on information given in Figure 1.
Figure 1 — Load Reference Guide
APPLIANCE ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~LOAD DRAW
Air Conditioner (12,000 BTU) ~ ~ ~ ~ ~(1700W) 7A@240V Coffee Maker ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(1000W) 8.4A@120V
*Electric Range (one element) ~ ~ ~(1500W) 6.3A@240V | |
Electric Blanket | ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(1500W) 12.5A@120V |
Electric Skillet | ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(1250W) 10.5A@120V |
*Freezer ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(500W) 4.2A@120V
*Furnace Fan (1/3 HP) | ~ ~ ~ ~ ~ ~ ~(1200W) 10A@120V | ||
*Jet Pump | ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(800W) 3.4A@240V | ||
Light Bulb | ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(100W) 0.9A@120V | ||
Microwave Oven ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(700W) 5.9A@120V | |||
Oil Burner on Furnace | ~ ~ ~ ~ ~ ~ ~ ~(300W) 2.5A@120V | ||
Oil Fired Heater (30,000 BTU) | ~ ~ ~ ~(150W) 1.3A@120V | ||
Oil Fired Heater (85,000 BTU) | ~ ~ ~ ~(225W) 1.9A@120V | ||
Oil Fired Heater (140,000 BTU) | ~ ~ ~(400W) 3.4A@120V | ||
Radio ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(50 to 200W) 0.5 to 1.7A@120V *Refrigerator ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(600W) 5A@120V *Submersible Well Pump (1 HP) ~ ~(2000W) 8.4A@240V Sump Pump ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~(600W) 5A@120V Television ~ ~ ~ ~ ~ ~ ~ ~(200 to 500W) 1.7 to 4.2A@120V
*Allow 3 times the listed watts for starting these devices. WATTS = AMPS x VOLTS
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