Generac 004373-3 , 004626-2, 004373-3, 004626-2 owner manual 40 kW 0D6974

Page 30

28 Generac® Power Systems, Inc.

BAT+	BAT-
	0
14

14

14

14

13

161		0
160	79	0

7

7

14

14

13

PFC

ACT+	ACT-	MPU+	MPU-	MPU SHIELD
160	161		0
160		79		0	85

85
14	56

85	14	13
85
	85	0
		0
14
	13
	56
	0

BLACK

RED

85N2

N1

	56
85			2	162
85			1	1
			1	1
0		AVR	4	4
		AVR	6	6
			6	6
			5	S15
	N1		3	S16
			3	S16
	N2

6	6	85
5	5	85
	4	85
4	4	0
		0
		56

85
	85
		56
14				85
14
	13	14	56	85
		14	56

0		13	14
0

	14
14	0
14	CAP
	GRD
N2
N1
	15
	13						4
							4
15	F1	0		1		14	4	56
15		0	0	1	14	14	4
							14
				S15		0
	S16					0
	S16			0
162				0				4
				0				4
	2						14	4
CB1							14
							14
	162				14
4	R1	14
							0

	1				4			4		1
					4			4
			183		0
					0			183
					194			183	4
					194			0	4	1
					23		194	0		1
					23

1	4				T2	23
1	4				T1	T2				2
					T1	T2
						T1		C
						T1		D
219						N2				6
					23	N1				S16
					N2	CP
						CP		K
	183				T2	P	O	K	178		2
	183				N1	00			178		2
		23							S1
					N2
23					178					S15
					N1	58				S15
					N1	58
			T2		T1	00	57	S3
			194		58						6
			194		57				S1
	178
85	178
85					S3
					T1			00
								00
15						S1				2
				0	58	2				2
	T2	T1			58	S16
	T2				2	S16
					2
	6									6
							S15			S16
					S16			14			00
		2			S3		+				S16
					S3
						HM
						HM				S15
85									S15	S15
85									S15		HZ
											HZ
		194			57
		194
					58	0		0
					65			0
					65	BVM
194			S1			BVM		14		0	S15
194			S1					14		0	S15
											S16
23	15				64	0					AM
	183

Wiring Diagram - Control Panel	(Model No. 004626-2) Guardian
- Drawing No.	Liquid-cooled

Section 6 — Electrical Data

EH

161

160

4

29

D1

4

0	229	56
	229	4

	S3		15C	+		67
78	S3	67	15C	+		67
1					67
			0		67	0
						0

0						0
15C	15C			15C
	183			15C
	183

40 kW 0D6974

TS2

4

229		START/MANUAL	00
229	T2 T1	SW1
			VM

14

239	OFF	15C
239		15C
		65

N2 BLACK

			T2
	BLUE
BLACK	RED		A225
BLACK	BLACK		A225
	T1	T2
	17	16	15
	TR1

BLUE

USE BLUE WIRE FOR 240V, 1 PHASE

USE YELLOW WIRE FOR 208V, 3 PHASE

INSULATE UNUSED WIRE END

T1
0	15C	239	15E	178
	15C	239	15E	178	14
13	12	11	10	9	7	6

PCB

BLUE

			178	AUTO		64
				15C
		15E
		T2	F2
		T2	T1
			T1			65
				14		65
		15	225A	SW2 N.C.		65
		15		SW2 N.C.		65
	4				15	S16
85	4				15	64
						64
					15C	S15
					15C	S15
2	1			BLUE
2	1			15
	A	S15		15
	A	S15
	B	S16			S16
	D	229
	E	176		15

L1

Image 30

Contents Liquid-cooled, Prepackaged Standby Generators Introduction Authorized Dealer LocationIntroduction Inside Front Cover General Hazards Electrical Hazards Generator Prepackaged Transfer SwitchUNPACKING/INSPECTION Generator AC Connection SystemsSpecifications Main Circuit BreakerEngine Protective Devices Fuel Requirements Recommendations ‹ 1.9.1 Conversion to LP GAS VaporEmissions Control System Coolant‹ 1.12.1 AIR Fuel Ratio Controller Nfpa Standards Standby Generator InstallationBasic Standby Electric System Other Published StandardsMethod Transfer Switch Start Signal Connections‹ 2.6.1 PRE-PACKAGED Type Switch Grounding the GeneratorBattery Installation Preparation Before START-UP‹ 2.7.1 Vented Batteries ‹ 2.8.2 Transfer Switch ‹ 2.8.1 Prior to Initial START-UPUsing the AUTO/OFF/MANUAL Switch Sequence of Automatic Operation Engine Heater‹ 3.2.3 Manual Position Weekly Exercise Cycle Checking the Engine OIL LevelChanging the Engine OIL and Filter Changing the Engine AIR Cleaner‹ 4.2.2 OIL and Filter Change Procedure ‹ 4.2.1 Engine OIL RecommendationsBattery Maintenance ‹ 4.5.1 Battery ReplacementSpark Plugs Overload Protection for Miscellaneous MaintenanceCooling System DC FuseOUT of Service Procedure ‹ 4.11.1 Removal from Service‹ 4.11.2 Return to Service Service Schedule SYSTEM/COMPONENT Procedure FrequencyTroubleshooting Guide Problem Cause CorrectionElectrical Data Not Used on Guardian Unit Electrical Data TS1 Generator D4992-A Model No Section 40 kW 0D6974 KW Generators No D6975 27 *28 Drain Pan To Oil On Oil QTY Description Base Frame Assembly M6 Hinge Panel Face Panel BTM & Back Control VDC Panel Face Cover Plate AVR ALT Leads Sensing Wire QTY Flywheel Engine Stator Leads Detail Scroll Washer Lock M12 Exploded Views and Parts Lists Engine 4.3L GM Exploded Views and Parts Lists MOUNT, Engine R & L To Thermostat Housing To Engine Block To Starter Solenoid RED Black To Engine Block Part KIT Radiator Copper Brass DIA. Clamp ASSEMBLY2 Compartment NUT Wing 1/4-20 Nylk To Stepper Motor Support Solenoid NAT GAS Attach to REGULATOR, N/G R600S Exploded Views and Parts Lists Muffler Catalyst 4.3L Assembly Motor Stepper Guardian Liquid-cooled 40 kW Generators Your Warranty Rights and Obligations MANUFACTURER’S Emission Control System Warranty CoveragePURCHASER’S/OWNER’S Warranty Responsibilities Emission Control System Warranty Emission Related Parts Include the FollowingWarranty Schedule This Warranty Shall not Apply to the Following

004373-3, 004626-2, 004373-3 , 004626-2 specifications

Generac is a leader in the power generation industry, known for its reliable and innovative products. Among its extensive range of offerings, two models stand out: the Generac 004373-3 and the 004626-2. These models represent the cutting edge of home standby generators.

The Generac 004373-3 is designed to provide seamless power during outages, ensuring that homes remain comfortable and functional. One of its main features is the automatic transfer switch, which detects a power outage and activates the generator within seconds. This automatic response eliminates the need for manual intervention, allowing homeowners to go about their lives without interruption.

This model is equipped with a durable engine that runs on liquid propane or natural gas, providing flexibility depending on the availability of fuel sources. The 004373-3 has an impressive power output, capable of powering essential household appliances, including refrigerators, heating systems, and lights. Its compact design allows for easy installation, making it suitable for a variety of home sizes.

On the other hand, the Generac 004626-2 also focuses on providing reliable power but with additional advanced features. One of its key characteristics is the True Power Technology, which delivers clean and stable power, making it ideal for sensitive electronics and appliances. This feature is crucial for households that rely on digital devices, protecting them from fluctuations that could potentially cause damage.

Additionally, the 004626-2 comes with a user-friendly control panel that allows for easy monitoring and adjustments. The model also incorporates Smart Management Technology, which enables users to manage their power consumption effectively. This technology allows homeowners to prioritize the most critical circuits, ensuring essential services remain operational during outages.

Both models emphasize ease of maintenance, with a design that facilitates access to components for servicing. Generac generators are known for meeting high standards of quality, ensuring reliability and longevity. With their advanced technologies and robust features, the Generac 004373-3 and 004626-2 provide peace of mind, allowing homeowners to remain connected and powered, no matter the circumstances. Whether for unexpected outages or planned maintenance, Generac continues to set the standard in home power solutions.