Contents hide

1 GP18000EFI, GP15500EFI Portable Generator

2 Product Information: GP15500EFI and GP18000EFI Electric Start Portable Generators

2.2 Specifications:

2.3 Product Usage Instructions:

2.4 Generator Size Recommendations:

2.5 Documents / Resources

GP18000EFI, GP15500EFI Portable Generator

Product Information: GP15500EFI and GP18000EFI Electric Start
Portable Generators

The GP15500EFI and GP18000EFI electric start portable generators
are the most powerful generators on the market at an exceptional
value. These generators are powerful enough to start multiple 5-ton
air conditioning units and can provide power for up to 16 circuits.
The generators are assembled in the USA using domestic and foreign
parts.

Features:

14.2-gallon steel fuel tank with incorporated fuel gauge
Hardened 1 1/4 steel tube cradle for added strength and
durability
Stops, alerts, saves from hazardous carbon monoxide
True Power Technology with less than 5% THD to safely power
sensitive electronics and tools
Generac 816cc EFI engine for maximum performance and
efficiency
12 never-flat wheels for easy movement over uneven terrain
Electric start for reliable, hassle-free start-up
Hour meter to keep track of run time and maintenance
intervals
(1) 120/240V AC 50A receptacle (NEMA 14-50R)
(1) 120V AC, 30A locking receptacle (NEMA L5-30R)
(1) 120/240V AC, 30A locking receptacle (NEMA L14-30R)

Specifications:

Model Number: GP15500EFI and GP18000EFI
Running Watts: 15,500 and 18,000
Starting Watts: 19,300 and 22,500
Rated AC Voltage: 120/240 VAC
Rated AC Frequency: 60 Hz
Rated VAC Frequency: 64.5/129
Engine Displacement: 816cc
Engine Type: OHVI
Engine RPM: 3600
Recommended Oil: 10W-30/SAE30
Oil Capacity Qt (L) w/ Filter Change: 2.2 (2.1) w/o Filter
Change: 2.0 (1.95)
Lubrication Method: Automatic Voltage Regulation (AVR)
Starting Method: Electric
Low Oil Shutdown Method: Electric Low Pressure
Battery Included: Yes
Battery Type: Group U1

Product Usage Instructions:

Step 1:

Choose which devices you want to power at the same time.

Step 2:

Record and add the running watts listed for each device that you
need to power.

Step 3:

Record the starting watts listed for each device.

Step 4:

Select the one device with the highest starting watts. Add that
number to the total running watts to determine the total wattage
requirement.

Note:

Watts listed are approximate. Check your appliance for actual
requirements. Total wattage requirements assume intermittent
starting of devices.

Generator Size Recommendations:

Recreation: Minimum starting watts for your needs – 9500
Starting watts
Household: 6600+2150+2900=11650 Starting watts
Jobsite:
1600+1000+600+1200+1400+1800+600+400+1800+1000+960+2000+400+350+900+800+1000+700+1050+500+1000+3800+875+4700+1800+3250=32285
Starting watts

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G P

18000EFI

G P

15500EFI

ELECTRIC START PORTABLE GENERATORS

*Assembled in the USA using domestic and foreign parts

G P

15500EFI

G P

18000EFI

15,500 RUNNING WATTS | 19,300 STARTING WATTS

18,000 RUNNING WATTS | 22,500 STARTING WATTS

The most powerful portable generators on the market at an exceptional value. Powerful enough to start

HOME LINK Hmiuglhtipoluetp5u-ttopnoartirabcolenpdoitwioenrinwgituhntithseaenfdficcieanncpyrovf iEdleecptorowneicr fFoureulp to 16 circuits.

Injection. Powerful enough to start multiple 5-ton air conditioning

units and can provide power for up to 16 circuits.

MANUAL TRANSFER SWITCH COMPATIBL E

14.2 GAL STEEL FUEL TANK
With incorporated fuel gauge provides durability and long run times

HARDENED 1 1/4″ STEEL TUBE CRADLE
For added strength and durability

COSENSE® TECHNOLOGY
Stops, Alerts, Saves. Powerful protection from hazardous carbon monoxide

TRUE POWERTM TECHNOLOGY
With less than 5% THD to safely power sensitive electronics and tools

GENERAC 816CC EFI ENGINE
Delivers the right amount of power to get the best performance and efficiency out of your engine

12″ NEVER-FLAT WHEELS
Large wheels make the generator easy to move over uneven terrain

ELECTRIC START
Provides reliable, hassle-free start-up

HOUR METER
Keeps track of run time and maintenance intervals

(1) 120/240V AC
50A Receptacle (NEMA 14-50R)

(1) 120V AC, 30A
Locking Receptacle (NEMA L5-30R)

(1) 120/240V AC, 30A
Locking Receptacle (NEMA L14-30R)

HOW MUCH POWER DO YOU NEED?
Sizing a portable generator is easy. Check out this sample:

1 Choose which devices you want to power at the same time.

Record and add the running watts listed for each device that you need to power.

Record the starting watts listed for each device.

Select the one device with the highest starting watts. Add that number to the total running watts to

determine the total wattage requirement.

DEVICE

RUNNING WATTS

ADDITIONAL STARTING WATTS

Air Compressor – 1 HP Circular Saw 15 Amp

1600 1800

2900 2300

Microwave

1000

Refrigerator/Freezer

700

2200

LCD TV

450

SUMP PUMP ½ HP Total

1050
6600 +

2150 2900 =

GENERATOR SIZE
Minimum starting watts for your needs
9500 Starting watts

RECREATION

HOUSEHOLD

JOBSITE

(2) 120V 20A
5-20R Duplex Outlets

DEVICE

RUNNING WATTS

Air Compressor – 1 HP Air Compressor – ½ HP Airless Paint Sprayer – 1/3 HP Belt Sander – 3″ Bench Grinder – 8″ Circular Saw – 7-1/4″ Hand Drill – 1/2″ Hand Drill – 3/8″ Miter Saw – 10″ Quartz Halogen Work Light Reciprocating Saw Table Saw, 10″ Electric Hedge Trimmer Electric Line Trimmer – 9″ Electric Chain Saw – 12″ (1/2HP) Computer with a 17″ Monitor Microwave – 1000 Watts Refrigerator/Freezer Sump Pump 1/2 HP Television – 27″ Well Pump – 1/2 HP Central AC – 24,000 BTU Furnace Fan Blower – 1/2 HP Heat Pump Space Heater Window AC – 12,000 BTU AM/FM Radio CD / DVD Player Cell Phone Battery Charger Inflator Pump RV Air Conditioner (13,500 BTU)

1600 1000 600 1200 1400 1800 600 400 1800 1000 960 2000 400 350 900 800 1000 700 1050 500 1000 3800 875 4700 1800 3250 100 100
25 50 1500

ADDITIONAL STARTING WATTS
2900 2000
1200 2400 1100 2300 900 600 1800
2000 2200 2150 2100
4950
2300 4500
3950
–
150 700

*Watts listed are approximate. Check your appliance for actual requirements. Total wattage requirements assumes intermittent starting of devices.

SERIES

GP15500EFI

GP18000EFI

SPECIFICATIONS

Model Number

7705

Running Watts

15500

Starting Watts

19300

Rated AC Voltage

120 / 240 VAC

Rated AC Frequency

60 Hz

Rated VAC Frequency

64.5 / 129

Engine Displacement

816cc

Engine Type

OHVI

Engine RPM

3600

Recommended Oil

10W-30 / SAE30

Oil Capacity Qt (L)
Lubrication Method
Automatic Voltage Regulation (AVR)
Starting Method
Low Oil Shutdown Method
Battery Included

w/ Filter Change: 2.2 (2.1) w/o Filter Change: 2.0 (1.95)
Oil Pump Yes
Electric Low Pressure
Yes

Battery Type

Group U1

Battery Dimensions

Standard Case Size

Start Switch Type

Off / Run / Start Switch

Fuel Gauge
Fuel Tank Capacity Gal (L)
Run Time @ 50% Load

Built-In Tank 14.2 (54) 11 Hrs

Handle Style

Folding, Locking

Wheel Type

12″ Never-Flat Wheels

Warranty

3 Year Limited (Residential) / 2 Year Limited (Commercial)

DIMENSIONS & WEIGHTS

Length in (mm)

58.5 (1485)

Width in (mm)

30.9 (785.5)

Height in (mm)

36.5 (928.1)

Carton Length in (mm)

40 (1016)

Carton Width in (mm)

27 (685.8)

Carton Height in (mm)

37.7 (958.2)

Unit Weight lbs (kg)

420 (191)

Shipping Weight lbs (kg)

450 (204)

7706 18000 22500 120 / 240 VAC 60 Hz 75 / 150 816cc OHVI 3600 10W-30 / SAE30 w/ Filter Change: 2.2 (2.1) w/o Filter Change: 2.0 (1.95) Oil Pump
Yes Electric Low Pressure
Yes Group U1 Standard Case Size Off / Run / Start Switch Built-In Tank 14.2 (54)
9 Hrs Folding, Locking 12″ Never-Flat Wheels 3 Year Limited (Residential) / 2 Year Limited (Commercial)
58.5 (1485) 30.9 (785.5) 36.5 (928.1)
40 (1016) 27 (685.8) 37.7 (958.2) 439.2 (213) 469.2 (199)

Generac Power Systems, Inc. S45 W29290 Hwy. 59, Waukesha, WI 53189 generac.com | 1-888-GENERAC (1-888-436-3722)