Introduction
ABOUT
THIS
MANUAL
This manual provides installation instructions for the OF
Series generator sets. This includes the following
information:
• Mounting — Recommendations for fastening gener-
ator set to base and space requirements for normal
operation and service.
• Mechanical Connections — Location of connection
points for
fuel,
exhaust, ventilation, and cooling.
• Electrical Connections — Location of electrical
con-
nection points for the control, generator, and starting
system.
. . .
• Prestart — Checklist of items or procedures needed
to prepare generator set for operation.
• Initial Startup — Test complete system lo ensure
proper installation, satisfactory performance, and
safe operation. iRefer to Qperators Manual for
trou-
bleshootingJ;nfor;mation.
This manual DOES NOT provide application informa-
ti o n fo r selecting agenerator set m design ing the com -
plete installation. If it is necessary to design the various
integrated systems (fuel, exhaust, cooling,
etc.),
review
standard installation practices, or specify system mate-
rials,
additionahinformation
isrequired.
For engineerinjg
data specific tothe .generatorset, refer to ihe OF Series
specification and product data sheets. For generator
application information about ^generator set installation,
refer to the following Onan Technical Bulletins.
T-009/T-017 — Selecting Onan Generator Sets
T-030 — Installation Information for
Liq u id -Cooled GenSets
Bulletin T-030 is a particularly useful installation refer-
ence and is shipped with this manual. Bulletin
T-009/T-017 is included in the Onan Power Systems
Manual or may be obtained separately on request from
an authorized Onan distributoj'.
INSTALLATION
OVERVIEW
These installation recommendations apply to typical
generator set installations with standard model genera-
tor sets. Whenever possible, these recommendations
also cover factory designed options or modifications.
However, because of the many variables in any installa-
tion,
it is not possible to provide specific recommenda-
tions for every situation. If there are any ouestions not
answered by this manual, contact an Onan distributor
for assistance.
Application and Installation
A standby power system must be carefully planned and
correctly installed to ensure proper operation. This
involvestwoessentialelements:applicationand installation.
•Application (as it applies to generator set installations)
refers to the design of the complete standby power
system that usually includes power distribution equip-
ment, transfer switches, ventilation equipment, mount-
ing pads, and cooling, exhaust, and fuel systems. Each
component must be correctly designed so the complete
system will function as
intended.
Application and design
is an engineering function generally done by specifying
engineers .or other trained,specialists. Specifying
engi-
neers are responsible for the design of the complete
standby system and for selecting the materials and pro-
•
ducts required.
Installation refers to the actual set-up and assembly of
the standby power system. The installers set-up and
connectthe various components ofthe system as speci-
fied in the system design plan. The complexity of the
standby system normally requires the special skills of
qualified electricians, plumbers, sheetmetal workers,
etc. to complete the various segments of the installation.
This is necessary to ensure all components are
assembled using standard methods and practices.
Fig-
ure 1 shows a typical instailation and Table
1
lists the
equipment installation specifications.
Safety
Considerations
The generator set has beemcarefully designed to pro^
vide safe and efficient service. However, the overall
safety and reliability ofthe complete system is depend-
ent on many factors outside the control of thegenerator
set manufacturer. To avoid possible safety hazards,
make all mechanical and electrical connections to the
generator set exactly as specified in this manual. All
systems external to the generator
(fuel,
exhaust, electri-
cal,
etc.) must comply with all applicable codes. Make
certain all required inspections and tests have been
completed and all code requirements have been satis-
fied before certifying the installation is complete and
ready for service.
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