Generac Power Systems Automatic Standby Generators, 8kW, 10kW, 12kW, 14kW Owner's Manual
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DANGER
C
Owner’s Manual
8, 10, 12, 14, 16, 17 & 20kW Air-cooled,
Automatic Standby Generators
U
S
LISTE
D
DO NOT LIFT UNIT BY ROOF!
Not intended for use as Primary Power in place of utility
DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!
or in life-support applications.
INTRODUCTION
Thank you for purchasing this compact, high performance, air-cooled, engine-driven generator. It is
designed to automatically supply electrical power to
operate critical loads during a utility power failure.
This unit is factory installed in an all-weather, metal
enclosure that is intended exclusively for outdoor
installation. This generator will operate using either
vapor withdrawn liquid propane (LP) or natural gas
(NG).
NOTE:
This generator is suitable for supplying typical
residential loads such as Induction Motors (sump
pumps, refrigerators, air conditioners, furnaces,
etc.), Electronic Components (computer, monitor,
TV, etc.), Lighting Loads and Microwaves.
READ THIS MANUAL THOROUGHLY
If any portion of this manual is not understood,
contact the nearest Authorized Dealer for starting,
operating and servicing procedures.
Throughout this publication, and on tags and decals
affixed to the generator, DANGER, WARNING,
CAUTION and NOTE blocks are used to alert personnel to special instructions about a particular operation that may be hazardous if performed incorrectly
or carelessly. Observe them carefully. Their definitions are as follows:
DANGER
After this heading, read instructions that, if not
strictly complied with, will result in serious personal injury, including death, in addition to property
damage.
After this heading, read instructions that, if not
strictly complied with, may result in serious personal injury or property damage.
After this heading, read instructions that, if not
strictly complied with, could result in damage to
equipment and/or property.
NOTE:
After this heading, read explanatory statements
that require special emphasis.
These safety warnings cannot eliminate the hazards that they indicate. Common sense and strict
compliance with the special instructions while
performing the service are essential to preventing
accidents.
Four commonly used safety symbols accompany the
DANGER, WARNING and CAUTION blocks. The type
of information each indicates follows:
This symbol points out potential explosion haz-
ard.
This symbol points out potential fire hazard.
This symbol points out potential electrical shock
hazard.
The operator is responsible for proper and safe use
of the equipment. The manufacturer strongly recommends that the operator read this Owner's Manual
and thoroughly understand all instructions before
using this equipment. The manufacturer also strongly recommends instructing other users to properly
start and operate the unit. This prepares them if they
need to operate the equipment in an emergency.
CONTENTS
This manual contains pertinent owner’s information
for these models:
7 kW NG, 8 kW LP, single-cylinder GH-410 Engine•
9 kW NG, 10 kW LP, V-twin GT-530 Engine•
12 kW NG, 12 kW LP, V-twin GT-990 Engine•
13 kW NG, 14 kW LP, V-twin GT-990 Engine•
16 kW NG, 16 kW LP, V-twin GT-990 Engine•
16 kW NG, 17 kW LP, V-twin GT-990 Engine•
18 kW NG, 20 kW LP, V-twin GT-999 Engine•
OPERATION AND MAINTENANCE
It is the operator's responsibility to perform all safety
checks, to make sure that all maintenance for safe
operation is performed promptly, and to have the
equipment checked periodically by an Authorized
Dealer. Normal maintenance service and replacement
of parts are the responsibility of the owner/operator
and, as such, are not considered defects in materials
or workmanship within the terms of the warranty.
Individual operating habits and usage contribute to
the need for maintenance service.
Proper maintenance and care of the generator ensures
a minimum number of problems and keep operating
expenses at a minimum. See an Authorized Dealer
for service aids and accessories.
HOW TO OBTAIN SERVICE
When the generator requires servicing or repairs,
contact an Authorized Dealer for assistance. Service
technicians are factory-trained and are capable of
handling all service needs.
When contacting an Authorized Dealer about parts
and service, always supply the complete model number and serial number of the unit as given on its data
decal, which is located on the generator. See section
"The Generator" for decal location.
Model No. ____________ Serial No. ______________
This symbol points out important safety infor-
mation that, if not followed, could endanger
personal safety and/or property of others.
Table of Contents
Air-cooled Generators
Introduction ........................Inside Front Cover
Read This Manual Thoroughly ........................ IFC
Contents .......................................................... IFC
Operation and Maintenance ............................ IFC
How to Obtain Service ..................................... IFC
Table of Contents ...............................................1
Safety Rules .........................................................2
Standards Index .................................................. 3
Section 1 – General Information ...................4
1.1 Unpacking/Inspection .................................... 4
1.2 Protection Systems ........................................4
1.3 NEC Requirement for Arc Fault Circuit
Interruption Breaker for Bedrooms ............... 4
1.4 Emission Information....................................5
1.5 The Generator ...............................................6
1.6 Specifications ................................................ 7
1.7 System Set LED ............................................8
1.8 Fuel Requirements and Recommendations .... 8
1.9 Fuel Consumption ......................................... 8
1.10 Reconfiguring the Fuel System ....................... 9
1.11 Location ...................................................... 10
1.12 Battery Requirements .................................. 11
1.13 Battery Installation ...................................... 11
1.14 The Battery.................................................. 12
1.15 Battery Charger ........................................... 12
Section 3 – Operation .....................................16
3.1 Control Panel Interface ................................16
3.2 Automatic Transfer Operation ..................... 17
3.3 Sequence of Automatic Operation ................ 18
3.4 Manual Transfer Operation ......................... 19
3.5 Side Compartment (V-twin Only) ................. 20
3.6 Protection Systems ...................................... 20
Section 4 – Maintenance .............................. 22
4.1 Fuse ............................................................. 22
4.2 Checking the Engine Oil Level ..................... 22
4.3 Changing the Engine Oil .............................. 23
4.4 Changing the Engine Air Cleaner ................. 23
4.5 Spark Plug(s) ..............................................24
4.6 Battery Maintenance .................................... 25
4.7 Adjusting GH-410/GT-530/990/999
Valve Clearance ............................................25
4.8 Cooling System ............................................26
4.9 Attention After Submersion .........................26
4.10 Corrosion Protection ................................... 27
4.11 Out of Service Procedure ............................. 27
4.12 Service Schedule ......................................... 28
Section 5 – Troubleshooting ........................ 29
5.1 Troubleshooting Guide ................................29
Section 6 – Appendix ..................................... 30
6.1 Menu System Navigation .............................30
Section 2 – Post Installation Start-up
and Adjustments ........................13
2.1 Before Initial Startup ................................... 13
2.2 Check Transfer Switch Operation................13
2.3 Electrical Checks .........................................13
2.4 Generator Tests Under Load .......................14
2.5 Checking Automatic Operation ....................14
2.6 Engine Governor Adjustment ...................... 15
2.7 Voltage Regulator Adjustment ...................... 15
Section 7 – Notes ............................................ 32
Section 8 – Installation Diagrams .............. 33
Section 9 – Warranty ...................................... 36
1
IMPORTANT SAFETY INSTRUCTIONS
Air-cooled Generators
SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe operation
be copied and posted near the unit’s installation site. Safety should be stressed to all opera-
tors and potential operators of this equipment.
The engine exhaust from this product•
contains chemicals known to the state
defects or other reproductive harm.
This product contains or emits chemicals•
known to the state of California to cause
cancer, birth defects or other reproductive harm.
Study these SAFETY RULES carefully before installing, operating or servicing this equipment. Become
familiar with this Owner’s Manual and with the
unit. The generator can operate safely, efficiently and
reliably only if it is properly installed, operated and
maintained. Many accidents are caused by failing to
follow simple and fundamental rules or precautions.
The manufacturer cannot anticipate every possible
circumstance that might involve a hazard. The warnings in this manual, and on tags and decals affixed
to the unit are, therefore, not all-inclusive. If using
a procedure, work method or operating technique
the manufacturer does not specifically recommend,
ensure that it is safe for others. Also make sure the
procedure, work method or operating technique utilized does not render the generator unsafe.
WARNING:•
of California to cause cancer, birth
WARNING:•
DANGER
Despite the safe design of this generator,
operating this equipment imprudently, neglecting
its maintenance or being careless can cause
possible injury or death. Permit only responsible
and capable persons to operate or maintain this
equipment.
Potentially lethal voltages are generated by
these machines. Ensure all steps are taken to
render the machine safe before attempting to
work on the generator.
Parts of the generator are rotating and/or hot
during operation. Exercise care near running
generators.
GENERAL HAZARDS
For safety reasons, the manufacturer recommends •
that the installation, initial start-up and maintenance of this equipment is carried out by an
Authorized Dealer.
The engine exhaust fumes contain carbon monox-•
ide, which can be DEADLY. This dangerous gas, if
breathed in sufficient concentrations, can cause
unconsciousness or even death. Do NOT alter or
add to the exhaust system or do anything that
might render the system unsafe or in noncompliance with applicable codes and standards.
Keep hands, feet, clothing, etc., away from drive •
belts, fans, and other moving or hot parts. Never
remove any drive belt or fan guard while the unit
is operating.
Adequate, unobstructed flow of cooling and venti-•
lating air is critical to correct generator operation.
Do not alter the installation or permit even partial
blockage of ventilation provisions, as this can seriously affect safe operation of the generator. The
generator MUST be installed outdoors.
When working on this equipment, remain alert •
at all times. Never work on the equipment when
physically or mentally fatigued.
Inspect the generator regularly, and contact the •
nearest Authorized Dealer for parts needing repair
or replacement.
Before performing any maintenance on the gen-•
erator, disconnect its battery cables to prevent
accidental start up. Disconnect the cable from the
battery post indicated by a NEGATIVE, NEG or
(–) first, then remove the POSITIVE, POS or (+)
cable. When reconnecting the cables, connect the
POSITIVE cable first, the NEGATIVE cable last.
Never use the generator or any of its parts as a •
step. Stepping on the unit can stress and break
parts, and may result in dangerous operating conditions from leaking exhaust gases, fuel leakage,
oil leakage, etc.
2
IMPORTANT SAFETY INSTRUCTIONS
Air-cooled Generators
ELECTRICAL HAZARDS
All generators covered by this manual produce •
dangerous electrical voltages and can cause fatal
electrical shock. Utility power delivers extremely
high and dangerous voltages to the transfer switch
as does the standby generator when it is in operation. Avoid contact with bare wires, terminals,
connections, etc., while the unit is running. Ensure
all appropriate covers, guards and barriers are in
place, secured and/or locked before operating the
generator. If work must be done around an operating unit, stand on an insulated, dry surface to
reduce shock hazard.
Do not handle any kind of electrical device while •
standing in water, while barefoot, or while hands or
feet are wet. DANGEROUS ELECTRICAL SHOCK
MAY RESULT.
The National Electrical Code (NEC) requires the •
frame and external electrically conductive parts of
the generator to be connected to an approved earth
ground. Local electrical codes also may require
proper grounding of the generator electrical system.
After installing this home standby electrical sys-•
tem, the generator may crank and start at any
time without warning. When this occurs, load circuits are transferred to the STANDBY (generator)
power source. To prevent possible injury if such a
start and transfer occur, always set the generator’s
AUTO/OFF/MANUAL switch to its OFF position
before working on equipment and remove the 15A
fuse from the generator control panel.
In case of accident caused by electric shock, imme-•
diately shut down the source of electrical power. If
this is not possible, attempt to free the victim from
the live conductor. AVOID DIRECT CONTACT WITH
THE VICTIM. Use a nonconducting implement,
such as a dry rope or board, to free the victim from
the live conductor. If the victim is unconscious,
apply first aid and get immediate medical help.
Never wear jewelry when working on this equip-•
ment. Jewelry can conduct electricity resulting in
electric shock, or may get caught in moving components causing injury.
FIRE HAZARDS
For fire safety, the generator must be installed and •
maintained properly. Installation must always
comply with applicable codes, standards, laws
and regulations. Adhere strictly to local, state
and national electrical and building codes. Comply
with regulations the Occupational Safety and
Health Administration (OSHA) has established.
Also, ensure that the generator is installed in
accordance with the manufacturer’s instructions
and recommendations. Following proper installation, do nothing that might alter a safe installation
and render the unit in noncompliance with the
aforementioned codes, standards, laws and regulations.
Keep a fire extinguisher near the generator at all •
times. Extinguishers rated “ABC” by the National
Fire Protection Association are appropriate for
use on the standby electric system. Keep the extinguisher properly charged and be familiar with its
use. Consult the local fire department with any
questions pertaining to fire extinguishers.
EXPLOSION HAZARDS
Do not smoke around the generator. Wipe up any •
fuel or oil spills immediately. Ensure that no combustible materials are left in the generator compartment, or on or near the generator, as FIRE or
EXPLOSION may result. Keep the area surrounding the generator clean and free from debris.
Gaseous fluids such as natural gas and liquid pro-•
pane (LP) gas are extremely EXPLOSIVE. Install
the fuel supply system according to applicable
fuel-gas codes. Before placing the home standby
electric system into service, fuel system lines must
be properly purged and leak tested according to
applicable code. After installation, inspect the fuel
system periodically for leaks. No leakage is permitted.
STANDARDS INDEX
In the absence of pertinent standards, codes, regulations and laws, the published information listed
below may be used as installation guide for this
equipment.
1. NFPA No. 37, STATIONARY COMBUSTION
ENGINES AND GAS TURBINES, available from
the National Fire Protection Association, 470
Atlantic Avenue, Boston, MA 02210.
2. NFPA No. 76A, ESSENTIAL ELECTRICAL
SYSTEMS FOR HEALTH CARE FACILITIES,
available same as Item 1.
3. NFPA No. 54, NATIONAL FUEL GAS CODE,
available same as Item 1.
4. NFPA No. 58, AMERICAN NATIONAL STANDARD
FOR STORAGE AND HANDLING OF LIQUEFIED
PETROLEUM GAS, available same as Item 1.
5. NFPA No. 70, NFPA HANDBOOK OF NATIONAL
ELECTRIC CODE, available same as Item 1.
6. Article X, NATIONAL BUILDING CODE, available
from the American Insurance Association, 85
John Street, New York, N.Y. 10038.
7. AGRICULTURAL WIRING HANDBOOK, available from the Food and Energy Council, 909
University Avenue, Columbia, MO 65201.
8. ASAE EP-3634, INSTALLATION AND
MAINTENANCE OF FARM STANDBY ELECTRICAL
SYSTEMS, available from the American Society
of Agricultural Engineers, 2950 Niles Road, St.
Joseph, MI 49085.
9. NFPA No. 30, FLAMMABLE AND COMBUSTIBLE
LIQUIDS CODE, available same as Item 1.
3
DANGER
Section 1 — General Information
Air-cooled Generators
1.2 PROTECTION SYSTEMS
Unlike an automobile engine, the generator may have
Only qualified electricians or contractors should
attempt such installations, which must comply
strictly with applicable codes, standards and regulations.
1.1 UNPACKING/INSPECTION
After unpacking, carefully inspect the contents for
damage.
This standby generator set is ready for installa-•
tion with a factory supplied and pre-mounted base
pad and has a weather protective enclosure that is
intended for outdoor installation only.
This UL listed standby generator set may be pack-•
aged with an automatic transfer switch with built
in load center. The combination transfer switch
and load center is pre-wired with a two foot and
30 foot conduit. Circuit breakers for emergency
circuit connections are included (if equipped).
This UL listed, 2-pole switch is rated at 100 • or 200
AC amperes at 250 volts maximum. The 100 Amp
transfer switch is for indoor use only. The 200
Amp transfer switch is for indoor/outdoor use
(if equipped).
If this generator is used to power electrical load
circuits normally powered by a utility power
source, it is required by code to install a transfer
switch. The transfer switch must effectively isolate
the electrical system from the utility distribution
system when the generator is operating (NEC 700,
701 & 702). Failure to isolate an electrical system
by such means will result in damage to the generator and also may result in injury or death to
utility power workers due to backfeed of electrical
energy.
If any loss or damage is noted at time of delivery, have
the person(s) making the delivery note all damage on
the freight bill or affix their signature under the consignor's memo of loss or damage.
If a loss or damage is noted after delivery, separate
the damaged materials and contact the carrier for
claim procedures.
“Concealed damage” is understood to mean damage
to the contents of a package that is not in evidence at
the time of delivery, but is discovered later.
To properly open the roof, press down on the center top lip and release the latch. If pressure is not
applied from the top, the roof may appear stuck.
Always verify that the side lock is unlocked before
attempting to lift the roof.
to run for long periods of time with no operator present to monitor engine conditions. For that reason,
the engine is equipped with the following systems
that protect it against potentially damaging conditions:
1. Low Oil Pressure Sensor
2. High Temperature Sensor
3. Overcrank
4. Overspeed
5. RPM Sensor
6. Low Battery
There are readouts on the control panel to notify
personnel that one of these failures has occurred.
There is also a System Set LED (single cylinder) or a
Status message on the display (V-twins) that displays
when all of the conditions described in the "System
Set LED" section are true.
1.3 NEC REQUIREMENT FOR ARC
FAULT CIRCUIT INTERRUPTION
BREAKER FOR BEDROOMS
In 2001, the National Electric Code (NEC) introduced a requirement for new construction. This new
requirement indicates the need for Arc Fault Circuit
Interrupters to be used to protect the complete
branch circuit that feeds a dwelling bedroom. The
actual NEC requirement is indicated below.
1.3.1 SECTION 210.12 ARC FAULT CIRCUIT
INTERRUPTER PROTECTION
1. Definition: An arc fault circuit interrupter is a
device intended to provide protection from the
effects of arc faults by recognizing characteristics
unique to arcing and by functioning to de-energize the circuit when an arc fault is detected.
2. Dwelling Unit Bedrooms: All branch circuits that
supply 125 volt, single-phase, 15 and 20 ampere
outlets installed in dwelling unit bedrooms shall
be protected by an arc fault circuit interrupter
listed to provide protection of the entire branch
circuit.
Section 210.12 requires that AFCI protection be
provided on branch circuits that supply outlets
(receptacle, lighting, etc.) in dwelling bedrooms. The
requirement is limited to 15 and 20 ampere, 125
volt circuits. There is no prohibition against providing AFCI protection on other circuits or in locations
other than bedrooms. Because circuits are often
shared between a bedroom and other areas such as
closets and hallways, providing AFCI protection on
the complete circuit would comply with 210.12.
4
Section 1 — General Information
Air-cooled Generators
If during the installation of the home standby system
the decision is made to provide back up power to a
bedroom branch circuit, then the circuit breaker in
the transfer switch should be replaced with an Arc
Fault Circuit Interrupter.
It is most important that breakers only be switched
like for like. For instance, if replacing a 15A breaker,
it MUST be replaced with a 15A AFCI breaker.
Likewise, a 20A breaker MUST be replaced with a
20A AFCI.
These AFCI breakers are available at the nearest
hardware store.
Siemens Item # Description
Q115AF 15A Single Pole AFCI
Q120AF 20A Single Pole AFCI
1.4 EMISSION INFORMATION
The Environmental Protection Agency requires that
this generator complies with exhaust emission standards. This generator is certified to meet the applicable EPA emission levels. Additional information
regarding the requirements set by the EPA is as follows:
The generator is certified for use as a stationary
engine for standby power generation. Any other use
may be a violation of federal and/or local laws. It is
important that to follow the maintenance specifications in the "Maintenance" section to ensure that the
engine complies with the applicable emission standards for the duration of the engine’s life. This engine
is certified to operate on Liquid Propane fuel and
pipeline Natural Gas. The emission control system
on the generator consists of the following:
Fuel Metering System•
Carburetor/mixer assembly•
Fuel regulator•
Air Induction System•
Intake pipe/manifold•
Air cleaner•
Ignition System•
Spark plug•
Ignition module•
The Emissions Compliance Period referred to on the
Emissions Compliance Label indicates the number of
operating hours for which the engine has been shown
to meet Federal emission requirements. See the table
below to determine the compliance period for the
generator. The displacement of the generator is listed
on the Emissions Compliance Label.
Displacement Category Compliance Period
A 300 Hours
< 66 cc
66 cc -
< 225 cc
225 cc
B 125 Hours
C 50 Hours
A 500 Hours
B 250 Hours
C 125 Hours
A 1000 Hours
B 500 Hours
C 250 Hours
5
Section 1 — General Information
Air-cooled Generators
1.5 THE GENERATOR
Figure 1.1 – 8kW, Single Cylinder, GH-410 Engine
(door removed)
Roof Latch
Circuit
Breaker
Air Filter
Fuel Inlet
(back)
Fuel
Regulator
Exhaust
Enclosure
Oil
Dipstick
Composite Base Oil Filter Battery Compartment
Data Label
(see sample)
Control
Panel
Figure 1.2 – 10kW, V-twin, GT-530 Engine
(door removed)
Roof Latch
Oil
Dipstick
Exhaust
Enclosure
Composite Base Oil Filter Battery Compartment
Data Label
(see sample)
Control
Panel
Circuit
Breaker
Air
Filter
Fuel Inlet
(back)
Fuel
Regulator
Exhaust
Enclosure
Figure 1.3 – 12, 14, 16, 17 and 20kW, V-twin,
GT-990/GT-999 Engine (door removed)
Roof Latch
Data Label
Oil
Dipstick
Composite Base Oil Filter Battery Compartment
(see sample)
Air Filter
Control
Panel
Circuit Breakers
GFCI Outlet
(All 17 & 20kW)
Fuel Inlet
(back)
Fuel
Regulator
Data Label Sample
6
Section 1 — General Information
Air-cooled Generators
1.6 SPECIFICATIONS
1.6.1 GENERATOR
Model 8kW 10kW 12kW 14kW 16kW 17kW 20kW
Rated Maximum
Power Capacity (Watts*)
Rated Voltage 120/240
Rated Maximum
Load Current (Amps)
120 Volts** (NG/LP) 58.3/66.6 75.0/83.3 100.0/100.0 108.3/116.6 133.3/133.3 133.3/141.6 150.0/166.6
240 Volts (NG/LP) 29.2/33.3 37.5/41.6 50.0/50.0 54.2/58.3 66.6/66.6 66.6/70.8 75.0/83.3
Main Circuit Breaker 35 Amp 45 Amp 50 Amp 60 Amp 65 Amp 65 Amp 100 Amp
Circuits*** 50A, 240V - - - 1 1 1 -
40A, 240V - - 1 1 1 1 -
30A, 240V 1 1 1 - - - -
20A, 240V - 1 - 1 1 1 -
20A, 120V 1 3 3 4 5 5 -
15A, 120V 5 3 5 4 5 5 -
Phase 1
Number of Rotor Poles 2
Rated AC Frequency 60 Hz
Battery Requirement
Weight (unit only in lbs.) 340 387 439 439 439 455/421 450
Enclosure Steel Steel Steel Steel Steel Steel/Aluminum Aluminum
Normal Operating Range -20° F (-28.8° C) to 77° F (25° C)
* Maximum wattage and current are subject to and limited by such factors as fuel Btu content, ambient temperature, altitude, engine power and condition,
etc. Maximum power decreases about 3.5 percent for each 1,000 feet above sea level; and also will decrease about 1 percent for each 6 C (10 F) above 16 C
(60 F) ambient temperature.
** Load current values shown for 120 volts are maximum TOTAL values for two separate circuits. The maximum current in each circuit must not exceed the
value stated for the 240 volts.
*** Circuits to be moved must be protected by same size breaker. For example, a 15 amp circuit in the main panel must be a 15 amp circuit in the transfer
switch.
7,000 NG
8,000 LP
Group 26R, 12
Volts and 350
CCA Minimum
9,000 NG
10,000 LP
12,000 NG
12,000 LP
13,000 NG
14,000 LP
Group 26R, 12 Volts and 525 CCA Minimum
16,000 NG
16,000 LP
16,000 NG
17,000 LP
18,000 NG
20,000 LP
1.6.2 ENGINE
Model 8 kW 10 kW 12/14/16/17 kW 20 kW
Type of Engine GH-410 GT-530 GT-990 GT-999
Number of Cylinders 1 2 2 2
Rated Horsepower @ 3,600 rpm 14.8 18 32 36
Displacement 410cc 530cc 992cc 999cc
Cylinder Block Aluminum w/Cast Iron Sleeve
Valve Arrangement Overhead Valves
Ignition System Solid-state w/Magneto
Recommended Spark Plug RC14YC BPR6HS RC14YC RC12YC
Spark Plug Gap 0.76 mm (0.030 inch) 0.76 mm (0.030 inch) 1.02 mm (0.040 inch) 0.76 mm (0.030 inch)
Compression Ratio 8.6:1 9.5:1 9.5:1 9.5:1
Starter 12 VDC
Oil Capacity Including Filter Approx. 1.5 Qts Approx. 1.7 Qts Approx. 1.7 Qts Approx. 1.7 Qts
Recommended Oil Filter Part # 070185F
Recommended Air Filter Part # 0G3332 Part # 0E9581 Part # 0C8127 Part # 0G5894
Operating RPM 3,600
7
Section 1 — General Information
Air-cooled Generators
1.7 SYSTEM SET LED
The “System Set” LED (single cylinder) or "Ready to
Run" on the display (v-twin) is ready when all of the
following conditions are true:
1. The AUTO/OFF/MANUAL switch is set to the
AUTO position.
2. The utility voltage being supplied to the unit is
being sensed by the PCB. If the utility sense voltage is not connected to the unit or if it is below
approximately 150-160 volts AC, then the system
set light will flash rapidly (8kW). This indicates
that if the AUTO/OFF/MANUAL switch is placed
in the Auto position, the generator will start.
3. No alarms are present, for example, low oil pressure, high temperature, etc.
1.8 FUEL REQUIREMENTS
AND RECOMMENDATIONS
With LP gas, use only the vapor withdrawal system. This type of system uses the vapors formed
above the liquid fuel in the storage tank.
The engine has been fitted with a fuel carburetion
system that meets the specifications of the 1997
California Air Resources Board for tamper-proof dual
fuel systems. The unit will run on natural gas or LP
gas, but it has been factory set to run on natural gas.
Should the primary fuel need to be changed to LP
gas, the fuel system needs to be reconfigured. See the
reconfiguring the Fuel System section for instructions
on reconfiguration of the fuel system.
Recommended fuels should have a Btu content of at
least 1,000 Btus per cubic foot for natural gas; or at
least 2,520 Btus per cubic foot for LP gas. Ask the
fuel supplier for the Btu content of the fuel.
Required fuel pressure for natural gas is five (5)
inches to seven (7) inches water column (0.18 to
0.25 psi); and for liquid propane, 10 inches to 12
inches of water column (0.36 to 0.43 psi). The
primary regulator for the propane supply is NOT
INCLUDED with the generator.
NOTE:
All pipe sizing, construction and layout must comply with NFPA 54 for natural gas applications and
NFPA 58 for liquid propane applications. Once the
generator is installed, verify that the fuel pressure
NEVER drops below four (4) inches water column
for natural gas or 10 inches water column for liquid propane.
Prior to installation of the generator, the installer
should consult local fuel suppliers or the fire marshal to check codes and regulations for proper installation. Local codes will mandate correct routing of
gaseous fuel line piping around gardens, shrubs and
other landscaping to prevent any damage.
8
Special considerations should be given when installing the unit where local conditions include flooding,
tornados, hurricanes, earthquakes and unstable
ground for the flexibility and strength of piping and
their connections.
Use an approved pipe sealant or joint compound on
all threaded fitting.
All installed gaseous fuel piping must be purged and
leak tested prior to initial start-up in accordance with
local codes, standards and regulations.
1.9 FUEL CONSUMPTION
Unit
7/8 kW 77 140 0.94/34 1.68/62
9/10 kW 102 156 1.25/46 1.93/70
12/12 kW 152 215 1.53/56 2.08/76
13/14 kW 156 220 1.56/58 2.30/84
16/16 kW 183 261 1.59/58 2.51/91
16/17 kW 183 261 1.61/59 2.57/94
18/20 kW 206 294 1.89/69 2.90/106
* Natural gas is in cubic feet per hour.
** LP is in gallons per hour/cubic feet per hour.
*** Values given are approximate.
Verify that gas meter is capable of providing enough
fuel flow to include household appliances.
1.9.1 BTU FLOW REQUIREMENTS -
NATURAL GAS
BTU flow required for each unit based on 1000 BTU
per cubic foot.
7kW — 140,000 BTU/Hour•
9kW — 156,000 BTU/Hour•
12kW — 215,000 BTU/Hour•
13kW — 220,000 BTU/Hour•
16kW — 261,000 BTU/Hour•
18kW — 294,000 BTU/Hour•
Gaseous fuels such as natural gas and liquid
propane (LP) gas are highly explosive. Even the
slightest spark can ignite such fuels and cause
an explosion. No leakage of fuel is permitted.
Natural gas, which is lighter than air, tends to
collect in high areas. LP gas is heavier than air
and tends to settle in low areas.
Nat. Gas LP Vapor
1/2 Load Full Load 1/2 Load Full Load
DANGER
Section 1 — General Information
Air-cooled Generators
NOTE:
A minimum of one approved manual shut-off valve
must be installed in the gaseous fuel supply line.
The valve must be easily accessible. Local codes
determine the proper location.
1.10 RECONFIGURING THE
FUEL SYSTEM
1.10.1 8 KW, 410CC ENGINE
To reconfigure the fuel system from NG to LP, follow
these steps (Figure 1.4):
NOTE:
The primary regulator for the propane supply is
NOT INCLUDED with the generator. A fuel pressure of 10 to 12 inches of water column (0.36 to
0.43 psi) to the fuel inlet of the generator MUST
BE SUPPLIED.
1. Turn off the main gas supply (if connected).
2. Open the roof and remove the door.
3. Remove the battery (if installed).
4. Take the plastic T-handle fuel selector in the poly
bag supplied with the generator.
5. Locate the selector knob on the air box cover,
behind the yellow air filter door and power
bulge. The unit comes from the factory in the NG
(Natural Gas) position. Grasping the T-handle,
insert the pin end into the hole in the selector
knob and pull out to overcome spring pressure
and then twist clockwise 90 degrees and allow
the selector to return in once aligned with the LP
(Liquid Propane) position.
6. Save this tool with the Owner's Manual.
7. Install the battery, door and close the roof.
8. Reverse the procedure to convert back to natural
gas.
Figure 1.4 – Fuel Selector
NOTE:
Use an approved pipe sealant or joint compound
on all threaded fittings to reduce the possibility
of leakage.
1.10.2 10, 12, 14, 16, 17 AND 20KW, V-TWIN
ENGINES
To reconfigure the fuel system from NG to LP, follow
these steps:
NOTE:
The primary regulator for the propane supply is
NOT INCLUDED with the generator. A fuel pressure of 10 to 12 inches of water column (0.36 to
0.43 psi) to the fuel inlet of the generator MUST
BE SUPPLIED.
1. Open the roof.
2. For 10kW units: Loosen clamp and slide back
the air inlet hose.
Slide fuel selector on carburetor out towards the •
back of the enclosure (Figures 1.5 and 1.6).
Return the inlet hose and tighten clamp secure-•
ly.
For 12, 14, 16, 17 and 20kW units: remove the air
cleaner cover.
Slide the selector lever out towards the back of •
the enclosure (Figures 1.7 and 1.8).
Return the air cleaner cover and tighten the two •
thumb screws.
Figure 1.5 - 10kW, GT-530 (Inlet Hose Slid Back)
Fuel Selection
Lever - "In"
Position for
Natural Gas
Fuel
3. Close the roof.
4. Reverse the procedure to convert back to natural
gas.
9
Section 1 — General Information
Air-cooled Generators
Figure 1.6 - 10kW, GT-530 (Inlet Hose Slid Back)
Fuel Selection
Lever - "Out"
Position for
Liquid Propane
(Vapor) Fuel
Figure 1.7 - 12, 14, 16, 17, & 20kW,
GT-990/GT-999 (Airbox Cover Removed)
Fuel Selection Lever - "In" Position for Natural Gas Fuel
Figure 1.8 - 12, 14, 16, 17, & 20kW,
GT-990/GT-999 (Airbox Cover Removed)
Fuel Selection Lever - "Out" Position for Liquid Propane
(Vapor) Fuel
1.11 LOCATION
1.11.1 GENERATOR
Install the generator set, in its protective enclosure,
outdoors, where adequate cooling and ventilating air
is always available (Figure 1.9). Consider these factors:
The installation of the generator • must comply
strictly with NFPA 37, NFPA 54, NFPA 58, and
NFPA 70 standards.
Install the unit where air inlet and outlet open-•
ings will not become obstructed by leaves, grass,
snow, etc.. If prevailing winds will cause blowing
or drifting, consider using a windbreak to protect
the unit.
Install the generator on high ground where water •
levels will not rise and endanger it.
Allow sufficient room on all sides of the generator •
for maintenance and servicing. This unit must be
installed in accordance with current applicable
NFPA 37 and NFPA 70 standards; as well as any
other federal, state and local codes for minimum
distances from other structures. DO NOT install
under wooden decks or structures unless there is
at least four (4) feet of clearance above the generator, three (3) feet of clearance on sides and front,
and 18 inches of clearance at back of unit.
Install the unit where rain gutter down spouts, •
roof run-off, landscape irrigation, water sprinklers
or sump pump discharge does not flood the unit
or spray the enclosure, including any air inlet or
outlet openings.
Install the unit where services will not be affected •
or obstructed, including concealed, underground
or covered services such as electrical, fuel, phone,
air conditioning or irrigation.
Where strong prevailing winds blow from one •
direction, face the generator air inlet openings to
the prevailing winds.
Figure 1.9 – Generator Clearances
10
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