North Star M165938N User manual

M165938N
Owner’s Manual
Instructions for Installation/Set-up, Operation, Servicing, & Storage
Portable, Outdoor Use-Only, Triple Fuel Generator
6,600 Watt Continuous (8,000 Watt Surge) Capacity
Can be used to power individual appliances plugged directly into the generator’s outlets, or as a back-up connection to a
building’s power supply (via a professionally installed UL-approved transfer switch.
WARNING
READ and UNDERSTAND this manual completely before using the generator! Failure to properly set up,
operate, and maintain this generator could result in serious injury or death from carbon monoxide poisoning,
electric shock, fire/explosion, or burns. In particular, be aware of the following hazards:
CO Poisoning
Generators give off carbon monoxide, a poisonous gas that can kill you. You CANNOT smell it, see it, or taste it.
• ONLY run generator OUTDOORS and AWAY from building air intakes. NEVER run generator inside any enclosed or
semi-enclosed spaces, including homes, basements, garages, sheds, boxes, RVs, boats or pick-up truck beds. These
spaces can trap poisonous gases, EVEN if you run a fan or open windows.
• Carbon monoxide is given off whether you are using gasoline, natural gas, or propane to power the generator.
• Install carbon monoxide alarms inside nearby structures/buildings (battery-operated, or plug-in with battery backup).
Electric shock / Electrocution
• High voltage electricity from generator can kill. DO NOT operate in wet locations. Be sure generator is properly
grounded. Use only UL-listed, outdoor-rated grounded extension cords of proper size.
• NEVER plug the generator directly into a wall outlet. ANY connection to a building’s electrical system MUST
ISOLATE THE GENERATOR FROM UTILITY POWER via a UL-approved transfer switch installed by a licensed
electrician. Otherwise, back feed from the generator into the power grid could kill utility workers.
Fire / Explosion
• DO NOT overload generator (per rated capacity), and OPERATE ONLY in an area with adequate cooling ventilation so
engine does not overheat. Exhaust can be extremely hot. Keep muffler at least 7’ from all combustible objects.
• All fuels are flammable. Never fuel a running or hot engine. Never pump fuel directly into generator at gas station – use
approved container to transfer fuel. Ensure there are no fuel leaks, and keep sources of sparks and flames away.
• LPG/NG hook-ups must be completed by a certified gas technician and comply with all federal and local requirements.
• ALWAYS keep a fire extinguisher rated “ABC” nearby.
STOP!
CHOOSE THE RIGHT GENERATOR FOR YOUR NEEDS. See the “Power load Planning & Management” section
of this manual to determine your power load requirements and then compare to the generator’s rated capacity.
INSPECT COMPONENTS: Closely inspect to make sure no components are missing or damaged. See the “Unpacking
& Delivery Inspection” section for instructions on whom to contact to report missing or damaged parts.
ARRANGE FOR PROFESSIONAL INSTALLATION of transfer switch and/or NG/LPG hook-ups, if they will be used.
See the “Installation/Initial Set-Up” section for more information about these requirements.
Any Questions, Comments, Problems, or Parts Orders
Call NorthStar Product Support 1-800-270-0810
ITEM NUMBER: 165938
SERIAL NUMBER: _____________
TM

Hazard Signal Word Definitions
2

Table of Contents
3
Hazard Signal Word Definitions ................................................................................................. 2
About Your Generator ................................................................................................................. 4
Specifications ................................................................................................................................. 6
Safety Label Locations.................................................................................................................. 7
Machine Component Identification............................................................................................. 8
Power Load Planning & Management........................................................................................11
Installation / Initial Set-Up:
1. Unpacking & Delivery Inspection..........................................................................................13
2. Planning the Power Load........................................................................................................13
3. Gas Hook-up Installation for Natural Gas or Propane (LPG) – if using................................14
4. Set-up as a PORTABLE or BUILDING BACK-UP Power Source ......................................16
5. Selecting a Suitable Site.........................................................................................................19
6. Grounding the Generator........................................................................................................21
7. Battery Installation .................................................................................................................22
Operation:
1. General Safety Rules for Operation .......................................................................................23
2. Preparing for Operation..........................................................................................................26
3. Starting the Engine.................................................................................................................30
4. Checking Generator Output....................................................................................................32
5. Connecting Loads...................................................................................................................33
6. Switching Fuels (during operation)........................................................................................34
7. Stopping the Engine ...............................................................................................................34
8. Storage & Exercise.................................................................................................................35
Maintenance & Repair..................................................................................................................37
Troubleshooting.............................................................................................................................39
Summary of Important Safety Information for Operation.......................................................40
Generator Exploded View............................................................................................................45
Wiring Diagram.............................................................................................................................47
Generator Head Exploded View..................................................................................................48

About Your Generator
4
Thank you for purchasing your NorthStar portable generator!
About Your Generator
This engine-driven, portable generator is designed to provide up to 8,000 Watts of
electrical power (6,600 watts continuous, 8,000 watts surge).
It can supply power:
1. As a portable power source. You can plug appliances directly into the generator’s
electrical outlets.
2. As a back-up, standby power source for a building. A licensed electrician can connect
the generator to your building’s electrical system via the installation of an UL-approved
transfer switch. (See the “Installation & Initial Set-up” section of this manual to learn
more about specific requirements and precautions relating to wiring the generator to your
building’s electrical system.)
You must select a generator adequately sized for your power needs. You need to
determine the power needs of all the appliances/tools you wish to power at the same time and
choose a generator rated to provide at least that power level. See the “Power Load Planning &
Management” section of this manual to determine your specific power load requirements and
then compare them to this generator’s rated capacity. You must not overload the generator.
Overloading will cause damage to the generator and attached electrical devices, and may also
result in fire.
You can power this generator with gasoline, natural gas (NG), or propane (LP) gas. The
generator is designed so that it is easy to switch between fuel sources. However, there are
special initial hook-up requirements for natural gas and propane. See the “Specifications”
section of this manual with regard to specific gas flow and pressure requirements. In addition,
note the following:
♦ Natural gas. The standard delivery pressure provided to your building by your utility
company may not match the requirements of your generator.
a) If your standard delivery pressure is higher than allowable for this generator, you
may need to have a pressure-reducing regulator installed. (Note: The regulator
supplied with this generator is NOT a pressure-reducing regulator).
b) If your standard delivery pressure is lower than allowable for this generator, you
will need changes to your natural gas service to elevate the delivery pressure.
ALL natural gas hook-ups must be completed by trained personnel from your natural gas
utility company and inspected as required by your local building code.
♦ Propane (LP). You will need a minimum 100 lb. LPG gas tank to run this generator – the
vaporization rate is insufficient with smaller tank sizes. A qualified propane gas
technician must set up the valve and hose connection between the propane tank and
generator in accordance with all local regulations and electric code.
See the “Installation / Initial Set-Up: Step 3” section of this manual for more detailed
information.
Be sure to read about site selection and grounding requirements for running this
generator. More detailed information can be found in the “Installation & Initial Set-up, Steps
5 & 6” of this manual.

About Your Generator (cont’d)
5
This generator is too heavy for one person to lift without mechanical assistance. An
optional wheel kit is available from NorthStar and is recommended if you will be moving the
generator unassisted. Other optional accessories available from NorthStar include a vinyl
cover for storage, UL-approved transfer switches, and extension cords.
Contact NorthStar Product Support at 1-800-270-0810
with questions about optional accessories or to order.
Read this Manual
WARNING
Improper use or maintenance of this generator can result in serious injury or death from
carbon monoxide poisoning, electric shock/electrocution, fire/explosion, or burns.
Read this manual completely before using the generator and follow all instructions and
safety rules.
You must follow all instructions and safety precautions presented throughout this manual. A
summary of important safety information can be found at the end of the manual. Keep this
manual for reference and review.
Proper preparation, operation, and maintenance will result in operator safety, as well as best
performance and long life of the generator. For detailed engine operation and maintenance
information, always refer to the engine Owner’s Manual furnished with the generator.
NorthStar is constantly improving its products. The specifications outlined herein are subject
to change without prior notice or obligation. The purchaser and/or user shall assume liability
for any modification and/or alterations of this equipment from original design and
manufacture.
Before using, the user shall determine the suitability of this product for its intended use and
assumes liability therein.
Contact NorthStar Product Support at 1-800-270-0810
for any questions about the appropriate use of this generator.
Warranty Registration
Please fill out and submit the warranty registration card so that we have your contact
information for any future product literature or replacement parts you may need.
ATTENTION:
All Rental Companies and Private Owners who loan this
equipment to others!
All persons to whom you rent/loan this generator must have access to and read this manual.
Keep this owner’s manual with the generator at all times and advise all persons who will
operate the machine to read it. You must also provide personal instruction on how to safely
operate the generator and remain available to answer any questions a renter/borrower might
have.

Specifications – Item #165938N
6
SPECIFICATIONS
Item Number #165938
Maximum Output 8000 Watts (W)
Continuous Output: Gasoline
Liquid Petroleum Gas (LPG)
Natural Gas (NG)
6600 Watts (W)
6200 Watts (W)
5200 Watts (W)
Voltage 120 / 240 Volt (V)
Phase Single phase (4-wire)
Frequency Regulation 56.5 - 63.3 Hertz (Hz)
Voltage Regulation 110-129V
Power Factor 1.0 p.f.
Engine 13 HP Honda
Engine Speed 3390 - 3798 RPM
Fuel Type Unleaded gasoline/LPG/NG
Pressure Range (LPG, NG) (7-11 in H2O, 4-6 oz.)
Min. Flow Range (LPG, NG) (5.7 lb/hr-LPG, 2.0 CFM-NG)
Fuel Capacity 6.5 gallons (24.6 L)
Oil Capacity 1.16 US quarts (1.1 L)
Starting Method Electric/Recoil
120V Receptacle 15 Amp (A) duplex (NEMA 5-15R)
20 Amp (A) duplex (NEMA 5-20R)
120/240V Receptacle 30 Amp (A) locking device
(NEMA L14-30R)
Circuit Breaker (1) 15 Amp (A) thermal, push to reset
(2) 20 Amp (A) thermal, push to reset
(2) 30 Amp (A) thermal, push to reset
Grounding Post Receives 10 Ga. wire or fork terminal
Battery (not included) 12 Volt, 18 Amp-Hour minimum,
Group size U1
Dimensions
Length 31.75” (80.6 cm)
Width 23.63” (60.0 cm)
Height 22.25” (56.5 cm)
Dry Weight 225 lb. (102 kg)
Gross Weight 250 lb. (114 kg)

Safety Label Locations – Item #165938N
7
Always make sure safety labels are in place and in good condition. If a safety label is
missing or not legible, order new labels or unsafe operation could result.
To order replacement safety labels, call NorthStar Product Support at 1-800-270-0810.
On-Product Warning Labels
Part numbers Description
39260 Burn Warning
779396 Battery Warning
779422 NorthStar
779424 Warning
PN 39260
BURN HAZARD
Do not touch
hot muffler.
©2005 NT+E 1-800-270-0810
WARNING
• Commercial-grade electric start engine
• Extend run 6.5 gallon fuel tank
• Maintenance-free brushless alternator design
• Smooth running focus mount isolation system
Switching Fuels on the Fly
LP/NG to Gasoline:
1. Change fuel selector switch to Gasoline
Gasoline to LP/NG:
1. Change fuel selector switch to None
2. Wait for engine to start sputtering
3. Change fuel selector switch to LP/NG
See Owner's manual for more details
BATTERIES:
1) contain caustic acid, 2) emit explosive gases, 3) can cause electric shock
ALWAYS use eye protection. Caustic acid and explosive gases can cause blindness or severe burns.
NO smoking, sparks, or flames.
NEVER touch both battery terminals at the same time with your hand or any non-insulated tools.
FLUSH immediately with water if battery acid contacts eyes, skin, or clothing.
CONNECT cables in correct sequence: FIRST RED to POSITIVE terminal, then BLACK to NEGATIVE
terminal. When disconnecting, DISCONNECT BLACK cable first, then RED.
NEVER charge a visiblydamaged or frozen battery. ALWAYS read and follow charger instructions.
WARNING - BATTERY HAZARDS
ATTENTION
IF GENERATOR IS TO BE STORED LONGER THAN 2 MONTHS,
charge battery with a trickle charger that is rated for 3 amps maximum.
A charged battery ensures reliable engine starting.
PN 779396
©2007 NT+E 1-800-270-0810
1. Connect regulator hose to LP/NG inlet
2. Set fuel selector switch to LP/NG
3. Start engine
Starting Instructions - LP/NG
1. Set fuel selector switch to Gasoline
2. Start engine
Starting Instructions - Gasoline

Machine Component Identification - Item #165938N
8
Figure 1 (Ref. 1-12)
Ref. Description Ref. Description
1 Gas Cap with Gauge 11 Super Silent Muffler
2 6.5 Gallon Gas Tank 12 Air Cleaner
3 Battery Box 13 Engine Key Switch
4 Circuit Breakers 14 Fuel Valve
5 120V 15A Duplex Receptacle 15 Choke Lever
6 Fuel Selector Switch 16 Recoil
7 120V 20A Duplex Receptacle 17 LPG / NG - 3/4” NPT Inlet
8 120/240V 30A Locking Receptacle 18 Demand Regulator
9 Vibration Isolation Mounts 19 Generator Head
10 Oil Drain Plug
Figure 2 (Ref. 13-19)

Machine Component Identification - Item #165938N
9
REFERENCE GUIDE
Reference 1 – Gas Cap with
Gauge The gas cap is extra large, creating a large hole for
refilling and a comfortable grip. You can always
monitor the fuel level without removing the cap by
using the fuel level indicator built into the gas cap.
Reference 2 – 6.5 Gallon Gas
Tank Large tank allows for extended run capabilities.
Always allow room for gasoline expansion by not
filling the gas tank completely full.
Reference 3 – Battery Box The battery box provides protection for the battery and
will accept a standard lawn tractor size battery (Group
U1-7). The engine requires a 12 volts d.c. battery, with
a minimum rating of 18Ah (Amp-Hour). See battery
section for sizing.
Reference 4 – Circuit Breakers This portable single phase generator has 1-15 amp
(A), 2-20 amp (A), and 2-30 amp (A) push to reset
circuit breakers to protect against electrical overloads.
Reference 5 – 120V 15A Duplex
Receptacle The generator has a control panel with two duplex (two
receptacles in a common housing) receptacles. This
duplex is a 120 volt (V) 15 amp (A) straight blade
receptacle, National Electrical Manufacturer’s
Association (NEMA) number 5-15R. This receptacle
accepts NEMA plug number 5-15P. The duplex is
capable of drawing 15A out of either receptacle or a
combination of both.
Reference 6 – Fuel Selector
Switch Switching from LP or NG to gasoline:
1. Disconnect all loads to generator.
2. Turn the gas line valve to ON position.
3. Flip the fuel selection switch to the GASOLINE
position.
Switching from gasoline to LP or NG:
1. Disconnect all loads to generator.
2. Make sure LP or NG fuel is being supplied.
3. Flip the fuel selection switch to the NONE position.
4. Wait for the engine to begin sputtering, this
indicates the engine is being starved of
gasoline. Do not choke the engine when
switching to LP/NG fuel.
5. Flip the fuel selection switch to the LP/NG
position.
6. Momentary sputtering is common. If engine
stops running, turn the ignition key to restart
the engine.
7. Turn gasoline line valve to OFF position.
Reference 7 – 120V 20A Duplex
Receptacle The second duplex is a 120V 20A straight blade
receptacle, National Electrical Manufacturer’s
Association (NEMA) number 5-20R. This receptacle
accepts NEMA plug numbers 5-15P and 5-20P. Each
receptacle on this duplex is capable of drawing 20A.
Reference 8 – 120/240V 30A
Locking Receptacle The locking device is a 120/240V 30A NEMA L14-30R
receptacle. This receptacle accepts a NEMA plug
number L14-30P.

Machine Component Identification - Item #165938N
10
Reference 9 – Vibration
Isolation Mounts The engine and generator are mounted on rubber
cylinders that absorb most of the engine vibration.
This feature eliminates the tendency of the machine to
“walk” which is common in engine powered equipment.
Reference 10 – Oil Drain Plug Refer to your Honda engine manual for oil change
recommendations.
Reference 11 – Super Silent
Muffler Noise level is 8 dB less than Honda’s standard muffler.
Reference 12 – Air Cleaner Refer to your Honda engine manual for air cleaner
care.
Reference 13 – Engine Key
Switch The engine key is located on the engine. Always
locate this switch and be familiar with its location
before operating the generator. Consult the Honda
engine owner’s manual for further instructions.
Reference 14 – Fuel Valve The engine has an ON-OFF valve mounted on the
front of the engine. Always keep this valve closed
when the generator is not in use.
Reference 15 – Choke Lever Used during cold starts. The choke is only used with
gasoline fuel. Refer to Honda engine manual for
usage.
Reference 16 – Recoil Grasp firmly when starting engine.
Reference 17 – LPG / NG – ¾”
NPT Inlet Before you start engine, smell next to floor for gas, if
you do smell gas:
• DO NOT start engine.
• DO NOT light a match.
• DO NOT flip on an electrical switch.
• Exit area immediately and call gas supplier or
fire department.
Minimum flow range required: NG - 2.0 CFM,
LPG - 5.7 lb/hr.
Pressure Range: 4-6 ounces, OR 7-11 inches of water
column. NEVER over pressurize.
Reference 18 – Demand
Regulator Supplies the engine LP or NG fuel only if the engine is
running.
Reference 19 – Generator Head The electricity producing part of the generator.

Power Load Planning & Management
11
WARNING
NEVER exceed the rated wattage capacity of your generator.
OVERLOADING may cause SERIOUS DAMAGE to the generator and
attached electrical devices, and may result in fire.
Your generator MUST BE SIZED PROPERLY to provide both the running and starting (surge)
wattage of the devices you will be powering. Before using your generator, determine the running
and starting wattage requirements of all the electrical devices you will be powering simultaneously.
The sum of the running and starting wattages of the devices being powered must not exceed the
continuous output rating of your generator. (The continuous output rating of your generator is listed
in the “Specifications” section of this manual.) Note that:
• Devices without electric motors such as light bulbs, radios, and televisions have the same
running and starting wattage.
• Devices with electric motors such as refrigerators, compressors, and hand tools typically
require a starting wattage that is 3 to 5 times greater than the running wattage.
The running and starting wattage requirements are often listed on a device’s nameplate. If wattage
is not given on the device’s nameplate, the wattage may be calculated by multiplying the nameplate
voltage by nameplate amperage, Watts = Volts X Amps.
Example conversion to watts:
120 Volts X 5 Amps = 600 Watts
If only the running voltage is given on the nameplate for a device with an electric motor, the starting
wattage can be approximated to be three to five times the running wattage.
Estimates for the running wattage requirements for common devices are listed in Table 1 below.
Guidance for starting wattages is provided in the table’s footnotes.
Table 1
Device Running Watts Device Running Watts
Air conditioner (12.000 BTU) 1700 (a,b) Jet pump 800 (a)
Battery charger (20 Amp) 500 Lawn mower 1200
Belt sander (3”) 1000 Light bulb (100 Watt) 100
Chain saw 1200 Microwave oven 700
Circular saw (6½”) 2000 (a,b) Milk cooler 1100 (a)
Coffee maker 1800 (a,b) Oil burner on furnace 300
Compressor (1 HP) 1400 (a,b) Oil-fired space heater (140,000 Btu) 400
Compressor (3/4 HP) 1800 (a) Oil-fired space heater (85,000 Btu) 225
Compressor (1/2 HP) 1400 (a) Oil-fired space heater (30,000 Btu) 150
Curling iron 700 Oven 4500
Dishwasher 1200 Paint sprayer, Airless (1/3 HP) 600 (a)
Edge trimmer 500 Paint sprayer, Airless (handheld) 150
Electric nail gun 1200 Radio 200
Electric range (1 element) 1500 Refrigerator 600 (b)
Electric skillet 1250 Slow cooker 200
Furnace fan (1/3 HP) 1200 (a) Submersible pump (1-1/2 HP) 2800 (a)

Power Load Planning & Management (cont’d)
12
Device Running Watts Device Running Watts
Freezer 800 (b) Submersible pump (1 HP) 2000 (a)
Hair dryer 1200 Submersible pump (1/2 HP) 1500 (a)
Hand drill (1”) 1100 Sump pump 600 (a)
Hand drill (1/2”) 875 Table saw 2000 (a)
Hand drill (3/8”) 500 Television 500
Hand drill (1/4”) 250 Toaster 1000
Hedge trimmer 450 Vacuum cleaner 250
Home computer 150 VCR 70
Impact wrench 500 Water Heater 3000
Weed trimmer 500
(a) Hard-starting motors require 3-5 times the rated running watts
(b) For extremely hard to start loads such as air conditioners and air compressors, consult the equipment
dealer to determine maximum wattage
To calculate the running and starting wattage requirements for the devices you will be
powering, follow these steps:
1. Make a list of all electrical devices you will be powering at the same time with the generator.
2. List the greater of the running or starting wattage next to each device as obtained from the
devices’ nameplate or Table 1. If only the running wattage for a device with an electric
motor is known, the starting wattage can be estimated to be at least 3 times the running
wattage.
3. Add the wattages for all devices on your list. This total must be lower than the continuous
output rating of your generator.
Example:
Device to be Powered Greater of Starting/Running Wattage
Light Bulb 75 W
Refrigerator – 18 Cu. Ft. 1600 W
Microwave 700 W
Window AC 1800 W
Sump pump (1/3 hp) 2100 W
Total 6275W
In this example, the generator must have a continuous output of at least 6275 W in order to power all
of the devices simultaneously.
You can increase the number of devices your generator can power by staggering the load on the
generator. For example, you could alternately power your refrigerator and air conditioner for
limited periods of time -- powering only one of the devices at a time and never powering both at the
same time.
STAGGERING LOADS

Installation / Initial Set-Up
13
There are a number of important steps required to set up your generator for initial use. These
steps are:
Steps for Installation / Initial Set-Up
1. Unpacking & delivery inspection.
2. Planning the power load to stay within the generator’s rated
capacity.
3. Getting gas hook-ups installed if natural gas or LP gas will be used as
a fuel source.
4. Setting up generator for the type of power generation you need:
a. portable power source, or
b. connected to a building as a back-up power source.
5. Selecting a site for using the generator.
6. Grounding.
7. Battery installation (electric start models only).
Each of these steps is discussed in detail below:
1. Unpacking & Delivery Inspection
You should inspect the generator immediately after you receive delivery.
See the “Machine Component Identification” section of this manual for a
diagram of the generator and its components.
• If you have missing components, contact Product Support at 1-800-270-0810.
• If you have damaged components, contact the freight company that delivered the unit and file a
claim.
2. Planning the Power Load
Plan your power load so that you do not exceed the generator’s rated capacity.
See the “Power Load Planning & Management” section of this manual to review how to plan and
manage power loads for the generator.

Installation / Initial Set-Up
14
3. Gas Hook-up Installation for Natural Gas or LPG (if needed)
You can power this generator with gasoline, natural gas (NG), or propane (LP) gas. The generator
is designed so that it is easy to switch between fuel sources. However, there are special initial
hook-up requirements for natural gas and propane:
WARNING:
If you choose to operate the generator on NG or LPG, you must have the fuel line system
installed by a certified gas technician.
Specific requirements for each type of hook-up are given below:
Natural Gas (NG)
Hook-up Contact your gas utility company for installation of a natural gas hook- up for the generator.
WARNING:
Natural gas is a highly explosive gas. All natural gas hook-ups must
be completed by trained personnel from your natural gas utility
company and inspected as required by your local building code.
♦ This product is designed to operate on NG at a gas pressure range of 4 to
6 ounces per square inch (7”-11” of water column) and requires a
minimum NG flow rate of 3.25 CFM.
♦ The standard gas pressure normally delivered to your building by your
utility company may be higher or lower than the required 4-6 ounces per
square inch (7”-11” of water column):
o If your standard delivery pressure exceeds 4-6 ounces per square
inch (7”-11” water column), you will need a pressure-reducing
regulator installed. Excessive gas pressure will permanently
damage this product and void the warranty if the generator is not
installed correctly with a pressure-reducing regulator as needed.
Note: The regulator supplied with this product is NOT a
pressure-reducing regulator, but one can be supplied
and installed by your gas utility technician at the time
of fuel system hook-up.
o If your standard delivery pressure is lower than 4-6 ounces per
square inch (7”-11” water column), you will need changes to your
natural gas service to provide elevated delivery pressure. In
addition you will need to have a pressure-reducing devices installed
for your other natural gas appliances.
Propane (LPG)
Hook-up Contact your local propane supplier to install a propane fuel system for the generator.
WARNING:
LPG is a highly explosive gas. A qualified propane technician must
make the valve and hose connection between the propane tank and
generator in accordance with all local regulations and electrical codes.
All LPG hook-ups should be completed by trained personnel from
propane supplier and inspected as required by your local building
code.

Installation / Initial Set-Up
15
♦ This product is designed to operate at an LPG gas pressure range of 7” to
11” of water column and requires a minimum LPG gas flow rate of 9.33
lb/hr, 2.2 Gal/hr, or 201,718 BTU/hr.
Note: All gas cylinders produce gas pressure in excess of 11” water
column. Introduction of gas pressure into the generator in
excess of 11” water column will permanently damage this
product and void the warranty. You will need a pressure-
reducing regulator installed as part of your LP gas fuel system.
♦ You will need a minimum 100 lb. LPG gas tank to operate the
generator.
This generator will not work with 20-lb gas cylinders used in gas grills
and recreational equipment, or 40-lb gas cylinders used in forklifts and
tractors. These smaller gas tanks do not have a sufficient vaporization
rate to run the generator.
Some installations may require tanks even larger than 100-lb as a result
of low surrounding air temperature and other appliances drawing fuel
from the same tank.

Installation / Initial Set-Up
16
4. Set-up either as a BUILDING BACK-UP or PORTABLE Power Source
This generator is designed to provide up to 8,000W of electrical power. It can supply electricity in
two ways:
1. As a back-up, standby power source for a building. For this application, you must arrange
for a licensed electrician to connect the generator to your building’s electrical system via the
installation of an UL-approved transfer switch. The transfer switch must be installed in
accordance with building electrical code and guidelines supplied by your power company.
2. As a portable power source. You can plug appliances or tools directly into the generator’s
electrical outlets.
Specific requirements for each are given below.
Note: Regardless of whether you use your generator as a back-up power source connected to a
building or as a portable power source, you must not overload the generator. Overloading
may cause serious damage to the generator and attached electrical devices.
Using as a
Back-up Power
Source for a
Building
Contact a licensed electrician to install a UL-approved transfer switch if
you want to use your generator as a back-up power source for a building.
What does a transfer switch do? It:
a) Safely connects the generator to your building’s electrical system by
isolating your generator from your utility company’s power lines,
AND
b) Connects your generator to a critical subset of your building’s circuits
that are needed for emergency power needs.
If your generator will be connected to your building’s electrical system, it
MUST ALWAYS be isolated from the utility power grid with a UL-approved
transfer switch installed by a licensed electrician in compliance with all
applicable building and electrical codes, and in accordance with guidelines
supplied by your power company.
DANGER:
A transfer switch must be installed in order to isolate your
generator from the utility power grid. If your generator is
NOT properly isolated from the utility system, serious
hazards will arise:
♦ When your generator is running, it’s output will back feed
into the utility power line and transformer that are
normally used to provide you with power. The
transformer will step up the current to the normal line
voltage. An unsuspecting utility line worker working on
what he thinks is a deactivated line could be electrocuted.
♦ If your generator is connected (running or not) when
utility power is restored, your generator will be destroyed.
It could also explode or cause fire.

Installation / Initial Set-Up
17
In addition to isolating your generator from the utility system, the transfer
switch connects your generator to a limited set of circuits in your building
that have been chosen as critical to operate during a power outage.
The generator cannot power your entire home -- you must work with the
installing electrician to determine which devices/appliances you wish to
power during an outage. The electrician can help you determine which
circuits and devices can be powered simultaneously without overloading the
generator.
(See the previous section of this manual entitled “Power Load Planning &
Management” for more information on load application and selection.)
Using as a
Portable Power
Source
When using the generator as a portable power source, you can plug
electric devices and appliances directly into the generator’s electrical
outlets.
There are three different kinds of electrical outlets on the generator:
1. One 120/240 Volt, 30 Amp locking receptacle (NEMA L14-30R
locking receptacle compatible with L14-30P mating plug).
2. One 120 Volt, 20 Amp duplex straight-blade receptacle (NEMA 5-
20R duplex receptacle compatible with NEMA 5-20P or 5-15P
mating plugs).
3. One 120 Volt, 15 Amp duplex straight-blade receptacle (NEMA 5-
15R receptacle compatible with NEMA 5-15P mating plug)/
(See more technical detail about these receptacles and their associated
circuit breakers in the “Machine Component Identification” section of this
manual.)
♦ Make sure you plug each electrical device/appliance into the correct
generator outlet based on the device’s plug configuration and
voltage/amperage rating. Never exceed the amperage rating of an outlet.
N
EMA
L14-30R
NEMA
5-20
R
NEMA
5-15
R
FIG02683

Installation / Initial Set-Up
18
♦ Extension cords may be used to power devices that are located at a
distance from the generator. However, use only UL-listed, outdoor-rated,
grounded extension cords of the proper size. Use Table 2 below to choose
an adequately sized extension cord according to the amperage of the
device being used and the length of the cord.
Table 2
WARNING:
Use of under sized extension cords can cause electric shock,
fire, or damage to connected devices.
♦ All extension and appliance cords must be in good condition and not worn,
bare, frayed, or otherwise damaged.
WARNING:
Use of damaged electric cords can cause electric shock or fire.
Note: If an extension cord becomes hot to the touch, it is overloaded or
damaged and must be replaced.
Northern Tool is NOT responsible for damage or injury resulting from
customer use of inadequate extension cords.
Current/Power Maximum Extension Cord Length
Amps at Load #10 Ga. #12 Ga. #14 Ga. #16 Ga.
240V (watts) Cord Cord Cord Cord
10 2400 250' 150' 100' 75'
20 4800 125' 75' 50' 25'
30 7200 60' 35' 25' 10'
40 9600 30' 15' 10' *
50 12000 15' * * *

Installation / Initial Set-Up
19
5. Select a Suitable Site
Before using the generator, you must select a suitable OUTDOOR location for installation and
operation. This location should meet all of the criteria listed below.
WARNING:
You must choose a suitable site for operating your generator to avoid equipment damage
and/or injury and possible death from carbon monoxide poisoning, electric shock, or fire.
Choose a site that meets all of the criteria specified.
Dry, level surface The generator should be positioned on a dry, firm, level surface.
Ensure that the generator sits level and will not slide or shift during operation.
If applicable, block the generator’s wheels to prevent sliding and shifting.
Outdoors only –
dangerous carbon
monoxide exhaust
WARNING: Carbon monoxide poisoning hazard
The exhaust from your generator contains carbon monoxide (CO), a
poisonous gas that can kill. You cannot smell it, see it, or taste it.
Carbon monoxide exhaust is given off whether you are using gasoline,
natural gas, or propane as the fuel source to power the generator.
Follow the directions below for choosing a location to operate your
generator in order to avoid carbon monoxide poisoning.
The location you choose to operate the generator must be OUTDOORS
and away from all air intakes:
• Never run the generator inside any closed or semi-enclosed spaces (even if
outdoors), including homes, garages, basements, sheds, or boxes. These
spaces can trap poisonous gases, even if you run a fan or open windows.
• Place the generator so that the exhaust fumes will not be directed towards
people or building air intakes.
• Ensure that working, battery-operated or battery back-up carbon monoxide
alarms are used in any dwelling/structure that is in close proximity to the
running generator.
• Note that this generator is NOT designed or approved for use in vehicles
or marine applications. Never run the generator inside RVs or other
vehicles, on boats, or on pick-up truck beds.
WARNING:
Never attempt to attach ductwork to the muffler system to allow for
installation inside an enclosure. This could cause hot air deflection,
heat build-up, and increased exhaust back-pressure, resulting in
possible exhaust leakage or damage to the generator.
Adequate cooling
ventilation The generator needs adequate, unobstructed flow of air to allow for proper cooling of engine and generator head.
WARNING:
Heat build-up from inadequate ventilation can result in fire,
posing a serious risk to nearby persons and structures.
• Situate so there is adequate clearance around generator to allow for
cooling airflow so that heat does not build up.

Installation / Initial Set-Up
20
• Never place the generator immediately adjacent to a building or other
structure – allow at least a 7’ clearance.
• Do not run the generator in close proximity to other heat-generating
equipment, such as another generator. The combined heat that is
generated may raise air temperature in the immediate area and there will
not be adequate cooling ventilation.
• Do not allow debris to accumulate and block airflow.
• Do not operate with a tarp, blanket, or cover surrounding the generator.
No wet conditions Choose a location where the generator will NOT be exposed to rain,
snow, or direct sunlight. Exposure to water can cause electric shock.
You may operate the generator under an outdoor, canopy-like structure of
heat-resistant material that is open on all sides. Make sure that all parts of
canopy are at least 7’ from exhaust, and allow for adequate clearance above
generator so that heat does not build up.
Hot exhaust
clearance The exhaust gas from your generator is extremely hot and can cause combustible materials to catch on fire.
• Make sure your generator’s exhaust system is at least 7 feet from all
combustible materials and buildings/structures.
• Equip the engine with a spark arrestor if the generator will be used near
any ignitable forest, brush, or grassy land. (See the “Specifications”
section of this manual to determine if your generator is already equipped.)
Make sure you comply with applicable local, state, and federal codes.
• Keep a fire extinguisher rated “ABC” nearby. Keep it properly charged
and be familiar with its use.
Away from
dust/dirt Do not use the generator in extremely dusty or dirty conditions.
Excessive dust and dirt can cause premature failure of the machine.
Hearing
protection Generators can produce noise levels of up to 95 dB in close proximity, which can be dangerous to human hearing with prolonged exposure.
Hearing protection may be required for persons working within 15-20 feet of
the running generator for an extended period of time.
WARNING:
Never attempt to attach ductwork to the muffler system to lower noise
levels. This could cause hot air deflection, heat build-up, and
increased exhaust back-pressure, resulting in possible exhaust leakage
or damage to the generator.