Electrical Data | Generac Power Systems 04758-2, 04759-2, 04760-2

Section 6 — Electrical Data

Section 6 — Electrical Data

Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Wiring Diagram – 12 & 15 kW – Drawing No. 0D8500-B

DIAGRAM KEY

BA - BRUSH ASSEMBLY

BCR - BATTERY CHARGE RELAY

CB1 - MAIN OUTPUT BREAKER

CB2 - CIRCUIT BREAKER, ALTERNATOR EXCITATION

D - DIODE

DSW - PCB MOUNTED DIP SWITCH FS - FUEL SOLENOID

F1 - FUSE 15 AMP

F2 - FUSE 5 AMP

GRD - CONTROL PANEL GROUND HTO - HIGH OIL TEMPERATURE SWITCH IC - INLINE CONNECTOR

ICT - INTERCONNECTION TERMINALS

IM1 - IGNITION MODULE, CYLINDER #1

IM2 - IGNITION MODULE, CYLINDER #2

LOP - LOW OIL PRESSURE SWITCH SC - STARTER CONTACTOR

SCR - STARTER CONTACTOR RELAY SP1, SP2 - SPARK PLUGS

SW1 - AUTO / OFF / MANUAL SWITCH SW2 - SET EXERCISE SWITCH

SM - STARTER MOTOR

TB - INSULATED TERMINAL BLOCK

TX - TRANSFORMER, 16 Vac 56 VA & 16 Vac 1 VA (DUAL SEC.)

ENGINE WIRING

3

2		BATTERY
	1	BATTERY
		CHARGER
14			2
0
0			1
				225B
FS				224B
				224B
		13A		13A
0			0
0				225B
0				224B
				224B
			14
0			0
14
14

		IC
SP1	D
SP1
	IM1
SP2	D	IC
SP2		IC

IC

IM2

85

HTO

0

86

LOP

0

TB

0 6 0

18

14

85 4

86 3

13	13
1	16					13
1	16
C1
	16
SCR
	13
	18
A	B
86				351
				351
56	0							14
56
85
16	56
16
13								86
								86
	1		2		3		4		5
	1		2		3		4		5
					J2
									J1
	CONTROL
PRINTED CIRCUIT BOARD

18

56

1	4
	4
2
3	23
	23
4
5	56
	56
6
7	14
	14
8

13

13

351

18

56 14

86

194

18

66A

BLACK

RED

	DSW
SM	1 - 20 Vac Sense Transformer

9	239
	239
10
11	17
12
13	0
14
15	224

15A

15

225

+

12V

BATTERY

CUSTOMER SUPPLIED

2 - Remote Not Auto

3 - 50 Hz Operation

4 - SPARE

SC

L.E.D - ALARM INDICATORS

16

17

24 Generac® Power Systems, Inc.

Image 26

Generac Power Systems 04758-2, 04759-2, 04760-2 owner manual Electrical Data, Generac Power Systems, Inc, Engine Wiring

Contents

This manual should remain with the unit Models 04758-2 6 kW NG, 7 kW LP 04759-2 12 kW NG, 12 kW LP04760-2 13 kW NG, 15 kW LP Installation and Owner’s Manual ‹ HOW TO OBTAIN SERVICE ‹ CONTENTS‹ OPERATION AND MAINTENANCE INTRODUCTION Introduction Parts of the generator are rotating and/or hot GENERAL HAZARDSDespite the safe design of this generator during operation. Exercise care near running generators EXPLOSION HAZARDS ELECTRICAL HAZARDSFIRE HAZARDS ‹ STANDARDS INDEX 1.3 SYSTEM SET LED 1.1 UNPACKING/INSPECTION1.2 PROTECTION SYSTEMS DANGER Figure 1.2 - 12 kW/15 kW, V-twin GT-990/760 Engine 1.4 THE GENERATORFigure 1.1 - 7 kW, Single Cylinder GH-410 Engine ‹ 1.5.2 ENGINE 1.5 SPECIFICATIONS‹ 1.5.1 GENERATOR 1.7 FUEL CONSUMPTION 1.8 RECONFIGURING THE FUEL SYSTEM1.6 FUEL REQUIREMENTS AND RECOMMENDATIONS DANGER 1.9.1 GENERATOR 1.9 LOCATION1.8.2 12KW AND 15KW, 990CC ENGINES Figure 1.4 - Demand Regulator 1.9.2 TRANSFER SWITCH 1.9.2.1 7 kW, 12 kW and 15 kW Units 1.10 BATTERY INSTALLATION1.11 THE BATTERY Figure 1.5 - Battery Cable Connections 2.3 ELECTRICAL CHECKS 2.2 CHECK TRANSFER SWITCH OPERATION2.1 BEFORE INITIAL START-UP 2.4 GENERATOR TESTS UNDER LOAD 2.5 CHECKING AUTOMATIC OPERATION Figure 2.1 - Dual Fuel Regulators 2.6 ADJUSTING THE REGULATOR NATURAL GAS ONLYFigure 2.2 - Placement of Regulator Figure 2.3 - Single Cylinder Engine Governor Adjustment 2.7 ENGINE GOVERNOR ADJUSTMENTFigure 2.4 - V-twin Engine Governor Adjustment Figure 2.5 - V-twin Full Load Speed Adjust Screw 3.2 USING THE AUTO/OFF/MANUAL SWITCH FIGURE 2.8 VOLTAGE REGULATOR ADJUSTMENT3.1 BREAK-IN PROCEDURE Figure 2.6 - Voltage Adjustment Potentiometer 3.4 SEQUENCE OF AUTOMATIC OPERATION 3.3 AUTOMATIC TRANSFER OPERATION3.5 MANUAL TRANSFER OPERATION ‹ 3.5.1 TRANSFER TO GENERATOR POWER SOURCE ‹ 3.7.2 HIGH TEMPERATURE SWITCH ‹ 3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE‹ 3.7.1 LOW OIL PRESSURE SWITCH Figure 3.2 - Manual Transfer Switch Operation 4.1 FUSE Figure 3.3 - Low Oil Pressure and High Temperature Switches4.2 CHECKING THE ENGINE OIL LEVEL ‹ 3.7.3 OVERCRANK 4.3 CHANGING THE ENGINE OIL 4.5 CHANGING THE ENGINE AIR CLEANER‹ 4.3.2 OIL CHANGE PROCEDURE 4.4 CHANGING THE OIL FILTER Figure 4.7 - 12 kW and 15 kW Engine Air Cleaner 4.7 BATTERY MAINTENANCEFigure 4.6 - 7 kW, Engine Air Cleaner Location Figure 4.8 - Setting the Spark Plug Gap 4.9 COOLING SYSTEM 4.8 ADJUSTING VALVE CLEARANCEFigure 4.10 - Valve Clearance Adjustment ‹ 4.12.1 REMOVAL FROM SERVICE 4.12 OUT OF SERVICE PROCEDURE‹ 4.12.2 RETURN TO SERVICE 4.10 ATTENTION AFTER SUBMERSION 4.13 SERVICE SCHEDULE CAUSE 5.1 TROUBLESHOOTING GUIDEPROBLEM CORRECTION Section 6 - Electrical Data 24 Generac Power Systems, IncENGINE WIRING CONNECTION CONTROL PANEL BOXCUSTOMER Electrical Schematic - 12 & 15 kW - Drawing No. 0D8501-B 26 Generac Power Systems, Inc Generac Power Systems, Inc 28 Generac Power Systems, Inc Section 6 - Electrical Data CONTROL PANEL BOX 224A 30 Generac Power Systems, Inc225A Electrical Schematic - 7 kW - Drawing No. 0D9014-C Section 7 - Exploded Views and Parts Lists 32 Generac Power Systems, Inc PART NO. QTY. DESCRIPTION 34 Generac Power Systems, Inc PART NO. QTY. DESCRIPTION 35, 36, 40 36 Generac Power Systems, Inc27, 28 PART NO. QTY DESCRIPTION 38 Generac Power Systems, Inc DESCRIPTION 40 Generac Power Systems, Inc 14 20 1.8 FT 1.25 FT 42 Generac Power Systems, Inc 1.33 FT 2.6 FT3 FT 44 Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists 46 Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists 48 Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists Section 8 - Mounting 50 Generac Power Systems, IncALL DIMENSIONS IN MILLIMETERS INCHES Guardian Air-cooled 7 kW, 12 Drawing No. 0D3739-B Section 9 - Notes PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES YOUR WARRANTY RIGHTS AND OBLIGATIONSMANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE CALIFORNIA AND FEDERAL EMISSION CONTROL WARRANTY STATEMENT EMISSION CONTROL SYSTEM WARRANTY EMISSION RELATED PARTS INCLUDE THE FOLLOWING WARRANTY SCHEDULE GENERAC POWER SYSTEMS TWO YEAR LIMITED WARRANTY FOR GUARDIANPREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING