Generac 004912-0, 004912-1, 004913-0, 004913-1, 004913-2 owner manual Inside Front Cover

Table of Contents

Centurion Liquid-cooled 15 kW and 25 kW Generators

Introduction			Inside Front Cover
Read This Manual Thoroughly				IFC
Operation and Maintenance				IFC
How to Obtain Service				IFC
Authorized Dealer Locator Number				IFC
Safety Rules				2
Section 1 – General Information				4
1.1	Generator			4
1.2	Transfer Switch			4
1.3	Automatic System Operation			4
1.4	Generator AC Connection Systems			4
1.5	Main Circuit Breaker			5
1.6	Generator Fuel System			5
1.7	Engine Protective Devices			5
	1.7.1	Low Oil Pressure Switch		5
	1.7.2	High Coolant Temperature Switch		5
	1.7.3	Low Coolant Level Switch		6
	1.7.4	Overspeed Shutdown		6
	1.7.5	PCB Operation LED’s		6
	1.7.6	Overcrank Shutdown		6
1.8	Unpacking			6
	1.8.1	Unpacking Precautions		6
	1.8.2	Inspection		6
1.9	Lifting the Generator			6
1.10	Specifications			7
	1.10.1	Generator		7
	1.10.2	Engine		7
1.11	Fuel Consumption			7
1.12	Reconfiguring the Fuel System			7
1.13	Torque Specifications			8
1.14	Engine Oil Recommendations			8
1.15	Coolant Recommendations			8
1.16	Before Installation			8
Section 2 — INSTALLATION				8
2.1	Generator Installation			8
	2.1.1	NFPA Standards		9
	2.1.2	Other Published Standards		9
2.2	Generator Location			9
2.3	Generator Mounting and Support			9
2.4	Basic Standby Electric System			9
2.5	Emergency Circuit Isolation Method			10
2.6	Total Circuit Isolation Method			10
2.7	Grounding the Generator			10
2.8	Generator AC Neutral Connections			11
2.9	Transfer Switch Start Signal Connections			11
2.10	Battery Installation			11
	2.10.1	Vented Batteries		11
2.11	Preparation Before Start-Up			12
	2.11.1	Prior to Initial Start-up		12
	2.11.2	Transfer Switch		12
	2.11.3	Fuel System		12
	2.11.4	Generator Set Lubrication		12
	2.11.5	Engine Coolant		12
	2.11.6	Belt Tension		12
	2.11.7	Electrical System		12

Section 3 — OPERATION			13
3.1	Using a Standard “GTS” Transfer Switch		13
3.2	Control Console Components		13
	3.2.1	Hourmeter	13
	3.2.2	Auto/Off/Manual Switch	13
	3.2.3	Fault Indicator Lamp	13
	3.2.4	15 Amp Fuse	13
	3.2.5 7.5 Amp Inline Fuse		14
	3.2.6 Set Exercise Time Switch		14
3.3	Manual Transfer and Start-up		14
3.4	Automatic Operation		14
3.5	Weekly Exercise Cycle		14
3.6	Engine Block Heater		14

Section 4 — MAINTENANCE		15
4.1	Maintenance Performed by	15
	Authorized Service Facilities
4.2	Cooling System	15

4.3Overload Protection for Engine

	DC Electrical System		15
4.4	Checking Fluid Levels		15
	4.4.1	Check Engine Oil	15
	4.4.2	Battery Fluid	16
	4.4.3	Engine Coolant	16
4.5	Maintenance Owner/Operator Can Perform ....		16
	4.5.1	Check Engine Oil Level	16
	4.5.2	Check Battery	16
	4.5.3	Exercise System	16
	4.5.4	Inspect Cooling System	16
	4.5.5	Perform Visual Inspection	16
	4.5.6	Inspect Exhaust System	16
	4.5.7	Check Fan Belt	16
	4.5.8	Inspect Engine Governor	16
	4.5.9	Changing Engine Oil	16
	4.5.10	Changing the Engine Air Cleaner	17
	4.5.11	Spark Plugs	17
	4.5.12	Coolant Change	17
4.6	Miscellaneous Maintenance		17
	4.6.1	Cleaning the Generator	17
	4.6.2	Battery	18
	4.6.3	Battery Maintenance	18
	4.6.4	Battery Replacement	18
	4.6.5	Rodent Protection	18
4.7	Out of Service Procedure		19
	4.7.1	Removal From Service	19
	4.7.2	Return to Service	19
4.8	Fuel Pipe Sizing		19
4.9	Scheduled Maintenance		20

Section 5 — TROUBLESHOOTING		23
5.1 Troubleshooting Points		23
Section 6	— NOTES	24
Section 7	— INSTALLATION DIAGRAM ....	25
Section 8	— ELECTRICAL DATA	26
Section 9	— EXPLODED VIEWS AND

PARTS LISTS	30
Section 10 — WARRANTY	48
Generac® Power Systems, Inc.	1