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Generac Power Systems 20 User Manual
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ST
ANDBY GENERA
T
OR
O
WNER'S MANU
AL
This manual should remain with the unit.
A ne
w standar
d of reliability
Serial Number
1.6L
20/25/30 kW
Models
N
ot
i
nt
ended f
or us
e i
n c
r
i
t
i
c
al
l
i
f
e s
uppor
t
appl
i
c
at
i
ons
.
ONL
Y QU
ALIFIED ELECTRICIANS OR CONTRA
CT
ORS SHOULD A
TTEMPT INST
ALLA
TION!
DEADL
Y EXHA
UST FUMES.
OUTDOOR INST
ALLA
TION ONL
Y!
—
CAUTION
—
Cover113 Re
v
. B 09/07
Part No.
0G5244
Catalog Number OMASPEA025-2
2
Table of Contents
Serial Number
1
Table of Contents
2
Safety Rules
3
Fire Hazards
4
Explosion Hazards
4
Introduction
5
Read this Manual Thoroughly
5
Operation and Maintenance
5
How to Obtain Service
5
Identification Record
6
Data Label
6
Equipment Description
7
Engine Oil Recommendations
7
Coolant Recommendations
7
Engine Protective Devices
8
High Coolant Temperature Switch
8
Low Coolant Level Sensor
8
Low Oil Pressure Switch
8
Overcrank Shutdown
8
Overspeed Shutdown
8
RPM Sensor Loss Shutdown
8
DC Fuse
8
Fuel Systems
9
Fuel Requirements
9
Natural Gas Fuel System
9
Propane Vapor Withdrawal Fuel System
9
LP Fuel System
9
Specifications
10
Generator
10
Engine
10
Cooling System
10
Fuel System
10
Electrical System
10
Cold Weather Kit
11
Reconfiguring the Fuel System
11
General Information
12
Generator AC Lead Connections
12
Four-Lead, Single-Phase Stator
12
Alternator Power Winding Connections
12
3-Phase Alternators
12
Installation
13
Preparation before Start-Up
13
Transfer Switch
13
Fuel System
13
Generator Set Lubrication
13
Prior to Initial Start-Up
13
Engine Coolant
13
Belt Tension
13
Electrical System
13
Initial Inspection for Genset Startup
13
Start-Up Checklist
14
Preparation for Start-Up
14
Operation
15
Generator Control and Operation
15
Operating Unit with Manual Transfer Switch
15
Engine Start-Up and Transfer
15
Retransfer and Shutdown
15
Operating Unit with Automatic Transfer Switch
15
Maintenance
16
Maintenance Performed by Service Facilities
16
Every Three Months
16
Once Every Six Months
16
Once Annually
16
First 30 Operating Hours
16
First 100 Operating Hours
16
Every 500 Operating Hours
16
Every 800 Operating Hours
16
Cooling System
16
Battery Fluid
17
Engine Coolant
17
Maintenance Owner/Operator Can Perform
17
Check Engine Oil Level
17
Check Battery
17
Exercise System
17
Inspect Cooling System
17
Check Engine Coolant Level
17
Perform Visual Inspection
17
Inspect Exhaust System
17
Changing Engine Oil
18
Changing the Engine Air Cleaner
18
Spark Plugs
18
Coolant Change
18
Miscellaneous Maintenance
19
Cleaning the Generator
19
Battery
19
Battery Maintenance
19
Battery Replacement
19
Repair Parts
19
Service Schedule
20
Troubleshooting
23
Troubleshooting Guide
23
4
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Generac Power Systems 20 Specifications
General
Brand
Generac Power Systems
Model
20
Category
Inverter
Language
English
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