Thank you for purchasing this model of the standby operator read this Owner's Manual and thoroughly generator set product line by Generac Power Systems. understand all instructions before using this equip- Every effort was expended to make sure that the ment.
Table of Contents Generac Standby Generator Sets Introduction ........Inside Front Cover 2.3 EMERGENCY CIRCUIT ISOLATION METHOD ..8 Read This Manual Thoroughly........IFC 2.4 TOTAL CIRCUIT ISOLATION METHOD ....9 Operation and Maintenance ........IFC 2.5 GROUNDING THE GENERATOR ......9 How to Obtain Service ..........IFC 2.6 GENERATOR AC NEUTRAL CONNECTIONS ..9 Authorized Service Dealer Locator Number....IFC 2.7 TRANSFER SWITCH START SIGNAL...
Important Safety Instructions Generac Standby Generator Sets SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe operation be copied and posted in potential hazard areas. Safety should be stressed to all operators, potential operators, and service and repair technicians for this equipment. SAVE THESE INSTRUCTIONS –...
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Important Safety Instructions Generac Standby Generator Sets • Inspect the generator regularly, and promptly • Generators installed with an automatic transfer repair or replace all worn, damaged or defective switch will crank and start automatically when parts using only factory-approved parts. normal (utility) source voltage is removed or is below an acceptable preset level.
Section 1 – General Information Generac Standby Generator Sets IDENTIFICATION RECORD ENGINE PROTECTIVE DEVICES The standby generator may be required to operate for 1.1.1 DATA PLATE long periods of time without an operator on hand to monitor such engine conditions as coolant tempera- Every generator set has a metal DATA PLATE that ture, oil pressure or rpm.
Section 1 – General Information Generac Standby Generator Sets 1.3.6 OVERCRANK SHUTDOWN SPECIFICATIONS After a prespecified duration of cranking, this func- 1.6.1 GENERATOR tion ends the cranking if the engine has failed to start. Refer to the data plate on your particular generator for rated watts, amperes, frequency, voltage, phase 1.3.7 RPM SENSOR LOSS SHUTDOWN and other pertinent information.
Section 1 – General Information Generac Standby Generator Sets Engine Electrical System: GENERATOR AC LEAD DC Alternator Output ..........30 amps at 24 volts CONNECTIONS Starter Motor................24-volt DC The electrical wires in the unit’s AC connection Recommended Battery ........Two 12-volt, 90 Ah, 4 DLT (lower) panel should be installed according to the Ground Polarity ..............Negative (–) number of leads and the voltage/phase required for...
Section 2 – Installation Generac Standby Generator Sets STARTING AIDS Figure 1.3 – Typical Dual-rate Battery Charger This standby generator is equipped with the following starting aids that serve to provide quicker, easier starts under varying climactic conditions. This generator has been mounted with an engine coolant heater and a battery charger.
Section 2 – Installation Generac Standby Generator Sets BASIC STANDBY ELECTRIC SYSTEM After the system has been installed, you must Figure 2.1 shows a schematic diagram of a basic not do anything that might render the instal- standby electric system. Both the UTILITY power lation in noncompliance with such codes, supply and the STANDBY (generator) output are con- standards and regulations.
Section 2 – Installation Generac Standby Generator Sets • It must have an ampere rating equal to the total GENERATOR AC NEUTRAL amperage rating of the emergency distribution CONNECTIONS panel circuit. Generac uses an UNGROUNDED AC neutral. • Have it installed between the building’s main dis- Grounding is recommended only at the main service tribution panel and the emergency distribution entrance.
Section 2 – Installation Generac Standby Generator Sets Storage batteries give off explosive hydrogen • DO NOT SMOKE when near batteries, gas. This gas can form an explosive mixture • DO NOT cause flame or spark in battery area, and around the battery for several hours after •...
Section 2 – Installation Generac Standby Generator Sets 2.9.1.1 Transfer Switch 2.9.1.5 Belt Tension If this generator is used to supply power to any elec- Check the engine fan belt tension and condition prior trical system normally powered by an electric utility, to placing the unit into service and at recommended the National Electrical Code requires that a transfer intervals.
Section 3 – Operation Generac Standby Generator Sets GENERATOR CONTROL AND OPERATION Do not crank the engine continuously for Refer to the appropriate control panel operator’s longer than 30 seconds, or the heat may manual for this unit. damage the starter motor. •...
Section 4 – Maintenance Generac Standby Generator Sets 4.2.1 TEST STANDBY GENERATOR SYSTEM OPERATION AND COMPONENTS Do not dispose of the battery in a fire. The An authorized operator should test the operation of battery is capable of exploding. the standby generator system and inspect its compo- Do not open or mutilate the battery.
Section 4 – Maintenance Generac Standby Generator Sets 4.2.6 INSPECT/TEST FUEL SUPPLY SYSTEM 4.3.1 HOW TO ORDER PARTS Every three months (or 120 hours), an authorized To order a replacement part, locate the part in the operator should inspect and test the fuel supply sys- applicable exploded view.
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Section 6 — Electrical Data Generac Standby Generator Sets Wiring Diagram - 3.9L (Models 004812-0 & 004813-0) – Drawing No. 0E2647V-A 24 Generac ® Power Systems, Inc.
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Section 6 — Electrical Data Generac Standby Generator Sets Wiring Schematic - 3.9L Engine (Models 004812-0 & 004813-0) – Drawing No. 0E2648V-A PHC C 0/BLACK 0/BLACK 0/BARE 0/BARE 79/CLEAR 79/CLEAR BLACK WHITE 12V BAT GREEN RED D BLACK 120VAC UTILITY...
Section 7 — Exploded Views and Parts Lists Generac Standby Generator Sets Mounting Base (Models 004812-0 & 004813-0) – Drawing No. 0E3669-A TO ENGINE BLOCK TO OIL DRAIN ON OIL PAN ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY.
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Section 7 — Exploded Views and Parts Lists Generac Standby Generator Sets Battery (Models 004812-0 & 004813-0) – Drawing No. 0E3668-A TO FLYWHEEL BLACK HOUSING STARTER LENOID ITEM PART NO. QTY. DESCRIPTION 058665 BATT 12VDC 90-AH 27F 0E2471 BATTERY BOX GROUP 27 W/COVER 038805U CABLE BATT BLK #1 X 18.00...
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Section 7 — Exploded Views and Parts Lists Generac Standby Generator Sets Compartment (Model 004813-0) – Drawing No. 0E3366 28 Generac ® Power Systems, Inc.
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Section 7 — Exploded Views and Parts Lists Generac Standby Generator Sets Compartment (Model 004813-0) – Drawing No. 0E3366 ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION 0C3594 ASSEMBLY M6 HINGE 0C3157D INSULATION REAR DUCT 0A3359 SCREW BHSC M6-1.0 X 16 SS 0C3157F INSULATION REAR PANEL 0A3360...
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Section 7 — Exploded Views and Parts Lists Generac Standby Generator Sets Tank (Models 004812-0 & 004813-0) – Drawing No. 0D5400V-B 30 Generac ® Power Systems, Inc.
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Section 7 — Exploded Views and Parts Lists Generac Standby Generator Sets Tank (Models 004812-0 & 004813-0) – Drawing No. 0D5400V-B ITEM PART NO. QTY. DESCRIPTION 021075V TANK B GRP DW 210 GAL VERIZON 052645 SCREW HHC M12-1.75 X 30 G8.8...
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Section 7 — Exploded Views and Parts Lists Generac Standby Generator Sets Battery Charger (Models 004812-0 & 004813-0) – Drawing No. 0D3490-E REAR CUTAWAY VIEW OF PC BOARD COVER GND STRAP STRAP DETAIL A LOCATED ON OUTSIDE TOP FRONT VIEW OF INNER WALL WITH TERMINAL BLOCK &...
Warranty (ECS Warranty), which is provided to you by Generac pursuant to federal and California law. See also the “Generac Limited Warranties for Generac Power Systems, Inc.,” which is enclosed herewith on a separate sheet, also provided to you by Generac. The ECS Warranty applies only to the emission control system of your new non-road diesel engine. If there is any conflict in terms between the ECS Warranty and the Generac Warranty, the ECS Warranty shall apply except in circum- stances where the Generac Warranty may provide a longer warranty period.
Section 9 – Warranty Generac Standby Generator Sets EMISSION CONTROL SYSTEM WARRANTY Emission Control System Warranty (ECS Warranty) for 1996 and later model year non-road diesel engines: (a) Applicability: This warranty shall apply to 1996 and later model year non-road diesel engines. The ECS Warranty shall begin on the date the new engine or equipment is purchased by/delivered to its original, end-use purchaser/owner and shall continue for 60 months, or 3,000 hours of use, thereafter, whichever occurs first.
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Generac Service Facility, and only applies to permanently wired and mounted units. • A Generac Power Systems, Inc. Transfer Switch is highly recommended to be used in conjunction with the genset. If a Non - Generac Power Systems, Inc. Transfer Switch is substituted for use and directly causes damage to the genset, no warranty coverage shall apply.
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TO ENGINE FLYWHEEL NOTE: TORQUE ITEM #6 24 FT/LB AND USE THREAD LOCKING COMPOUND (T-13717). TO ENGINE FLYWHEEL HOUSING 45, 48...
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055420 SCREW HHC M12-1.75 X 25 G10.9 051769 WASHER LOCK M12 022237 WASHER LOCK 3/8 043097 SCREW SHC 3/8-16 X 1 G8.8 NZ 0A8240 FLEX PLATE SAE10 055173 SCREW HHC M8-1.25 X 20 G10.9 022129 WASHER LOCK M8-5/16 056326 TRIM VINYL BLACK 1/8 GP (8.4’) 0C4286 ASSEMBLY FAN W/PRESS DISC 10.75 X 3 0A2601...
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0E3681 PANEL BACK & BOTTOM E-PNL VRZN ---------- PANEL SPECIAL PARTS 0E3679 E-PANEL FRONT W/ SILK SCREEN 064733 BRACKET RESISTOR MNTNG FOR 25W 0E3683 PANEL RH SIDE E-PNL VERIZON RESISTOR #2 0E3682 PANEL LH SIDE E-PNL VERIZON TABLE A 0E3550 CHASSIS, UNIVERSAL FIELD CIRCUIT BREAKER 0D2382...
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021075V TANK B G RP DW 210 GAL VERIZO N 0C6789 SCREW HHC M12-1.75 X 30 SS FT 087171 W ASHER FLAT 1/2 SS 051548 NUT HEX M12-1.75 G8 SS 0D3747V COVER STUB-UP BGRP VERIZO N 050190 W ASHER FLAT .344 ID X 1.0 OD 051754 SCREW HHC M8-1.25 X 12 G 8.8 035472...
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TO THERMOSTAT HOUSING TO LOWER RADIATOR HOSE MOUNTING BASE...
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059938 MUFFLER 3 NPT BXU 0E3603 BLANKET MUFFLER WRAP 3.9L L0SE 059940 RAIN CAP 3.50 / 3.69 059936 ELBOW 90 D 3 NPT 059941 NIPPLE TOE 3 NPT X 8 0E3298 REDUCER 2.5" TO 3" COUPLER 057646C FLEX EXH 2.5 X 15.44 LONG 0E2668 ELBOW EXHAUST TURBO OUTLET 0E3495...
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0E7715 MUFFLER, REWORK B GRP VERIZON 0E3170 EXHAUST PIPE 3.9L ENCLOSED 0A5215C PIPE FLEX 3” 0C2933 BRACKET MOUNTING 0C4114 CLAMP MUFFLER BAND 0C9640 TUBE STRAIGHT 3 DIA 0C9645 TUBE ELBOW 3 DIA (90 DEG) 059902 CAP RAIN 3.00 / 3.19 055978 BOLT U 3/8-16 X 3.25 0E3495...
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LOWER PANEL CONNECTOR SEE DWG: 0D2483(390 ALTS.) OR 0D4225(520ALTS.) FIELD POWER SENSING BC3-10 CHARGE ALT. W/L CONN. TB4-5 PROG. INPUT 1 AUX. FUSED DC SUPPLY CON1-1 BATT CHRG FAIL BC3-1 POSITIVE DC FROM BATTERY CON4-1 CON1-2 PROG. INPUT 2 BC3-12 POSITIVE DC FROM BATTERY GEN.
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PHC C 0/BLACK 0/BLACK 0/BARE 0/BARE 79/CLEAR 79/CLEAR BLACK WHITE 12V BAT GREEN RED D BLACK 120VAC UTILITY SUPPLY LEGEND: ALT: ALTERNATOR - DC BAT: BATTERY BATTERY CHARGER CONTACTOR - CONTROL N.C. EC1: CONNECTOR - ENGINE 1(BLACK) EC2: CONNECTOR - ENGINE 2(GRAY) EC3: CONNECTOR - ENGINE 3(BASETANK) N.O.
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K X X 178 & 183 2-WIRE START FROM TRANSFER SWITCH Q Q Q BRUSHLESS NB B (390mm) NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED E1 E2 E3 LEGEND: CUSTOMER CONNECTION AS: ALTERNATOR STATOR 120/240V. 1-PHASE CB1: CIRCUIT BREAKER (200A) CB2: CIRCUIT BREAKER (100A) E1 TO E3 240V.
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VOLTAGE CODE - A SERIES 4-WIRE BRUSHLESS DISPLACED PHASE WINDING THERMAL PROTECTOR BYPASS LEGEND: AR: ALTERNATOR ROTOR AS: ALTERNATOR STATOR CB1: CIRCUIT BREAKER (200A) CB2: CIRCUIT BREAKER (100A) CT1: CURRENT TRANSFORMER CT2: CURRENT TRANSFORMER DPE: DISPLACED PHASE EXCIT. WINDING EA: BRUSHLESS EXCITER ARMATURE EF: EXCITER FIELD LPC: LOWER PANEL CONNECTION CUSTOMER CONNECTION...
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