Generac Power Systems 004912-0, 004912-1, 004913-0, 004913-1 Owner's Manual

Liquid-cooled, prepackaged standby generators (15 kw lp/15 kw natural gas) 120/240v single-phase w/ 100 amp transfer switch; (25 kw lp/25 kw natural gas) 120/240v single-phase w/ 200 amp transfer switch.
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CENTURION
CENTURION
CENTURION
®
*This manual should remain with the unit.
ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS
DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!!
Liquid-cooled, Prepackaged Standby Generators
DANGER
SHOULD ATTEMPT INSTALLATION!!
Owner's Manual
Models: 004912-0, 004912-1
(15 kW LP/15 kW Natural Gas)
120/240V Single-phase w/ 100 Amp
004913-0, 004913-1, 004913-2
(25 kW LP/25 kW Natural Gas)
120/240V Single-phase w/ 200 Amp

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   Summary of Contents for Generac Power Systems 004912-0, 004912-1, 004913-0, 004913-1

  • Page 1

    CENTURION CENTURION CENTURION ® *This manual should remain with the unit. ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS SHOULD ATTEMPT INSTALLATION!! DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!! Owner’s Manual Liquid-cooled, Prepackaged Standby Generators Models: 004912-0, 004912-1 (15 kW LP/15 kW Natural Gas) 120/240V Single-phase w/ 100 Amp Transfer Switch 004913-0, 004913-1, 004913-2...

  • Page 2

    Proper maintenance and care of the generator ensure a minimum number of problems and keep operating expenses at a minimum. See a Generac Authorized Service Dealer for service aids and accessories. Operating instructions presented in this manual assume that the standby electric system has been installed by a Generac Authorized Service Dealer or other competent, qualified contractor.

  • Page 3: Table Of Contents

    Check Fan Belt...16 Inspect Engine Governor ...16 Changing Engine Oil ...16 Cleaning the Generator ...17 Battery ...18 Battery Maintenance ...18 Battery Replacement ...18 Rodent Protection ...18 Removal From Service ...19 Return to Service ...19 PARTS LISTS ...30 Generac ® Power Systems, Inc.

  • Page 4: Safety Rules

    Exercise care near running generators. Generac ® Power Systems, Inc. GENERAL HAZARDS • For safety reasons, Generac recommends that this equipment be installed, serviced and repaired by a Generac Authorized competent, qualified electrician or installation technician who is familiar with applicable codes, standards and regulations.

  • Page 5: Fire Hazards, Explosion Hazards

    FIRE or EXPLOSION may result. Keep the area surrounding the generator clean and free from debris. • Generac generator sets may operate using one of several types of fuels. All fuel types are potentially FLAMMABLE and/or EXPLOSIVE and should be handled with care.

  • Page 6: Section 1 – General Information, Generator, Transfer Switch, Automatic System Operation, Generator Ac Connection Systems

    • Protect the switch at all times against excessive moisture, dust, dirt, lint, construction grit and corrosive vapors. • It highly recommended Generac/Centurion transfer switch with this generator or it may void the warranty. Generac ® Power Systems, Inc. AUTOMATIC SYSTEM OPERATION...

  • Page 7: Main Circuit Breaker, Generator Fuel System, Engine Protective Devices, Low Oil Pressure Switch

    (Figure 1.5). C/B Rating* Circuit Breaker 70A BQ2 125A BQ2 Figure 1.3 - Engine Protective Devices LOW OIL PRESSURE SWITCH Figure 1.4 - Low Oil Pressure Switch HIGH COOLANT TEMPERATURE SWITCH Generac ® Power Systems, Inc.

  • Page 8: Low Coolant Level Switch, Overspeed Shutdown, Pcb Operation Led's, Overcrank Shutdown, Unpacking, Unpacking Precautions, Inspection

    The unit will not start or crank if the fuse is blown. Replace the fuse with one of the same size, type, and rating. Generac normally uses an AGC fuse rated at 15 amps (part number 022676). Handle shipping cartons and crates with care. Use care to avoid damage from dropping, bumping, collision, etc.

  • Page 9: Specifications, Generator, Engine, Fuel Consumption, Reconfiguring The Fuel System

    Figure 1.8 — Reconfigure the Fuel System Port 1 FUEL HOSE FUEL HOSE BRASS HOSE BRASS HOSE FITTING FITTING PORT 1 PORT 2 HOUSING HOUSING PORTS PORTS NG FUEL SYSTEM NOTE: Generac ® Power Systems, Inc. Port 2 PLUG LP FUEL SYSTEM...

  • Page 10: Torque Specifications, Engine Oil Recommendations, Coolant Recommendations, Before Installation, Section 2 — Installation, Generator Installation

    (essential) loads together and wire them into a separate “emergency” distribution panel. This generator can be installed in conjunction with a Generac “GTS” type engineered transfer switch, if desired. The standard transfer switch included has no adjustable sensing or controlling circuit boards.

  • Page 11: Nfpa Standards, Other Published Standards, Generator Location, Generator Mounting And Support, Basic Standby Electric System

    NOTE: For more information about the installation of a standby system, you can order Engine-Generator Standby Electric Power Systems Installer’s Guide and Reference Manual (part #046622) from a Generac Authorized Service Dealer. 2.1.1 NFPA STANDARDS following published standards pertaining to standby electric systems are available...

  • Page 12: Emergency Circuit Isolation Method, Total Circuit Isolation Method, Grounding The Generator

    Section 2 — Installation Centurion Liquid-cooled 15 kW and 25 kW Generators Figure 2.1 – Basic Standby Electric System NOTE: Generac recommends the use of a Generac Power Systems transfer switch in conjunction with this generator. EMERGENCY CIRCUIT ISOLATION METHOD...

  • Page 13: Generator Ac Neutral Connections, Transfer Switch Start Signal Connections, Battery Installation, Vented Batteries

    TRANSFER SWITCH START SIGNAL CONNECTIONS If the generator is to be installed with an automatic transfer switch, such as a Generac GTS-type switch, it will be necessary to connect the two-wire start control system. Connect the two-wire start signal from the automatic...

  • Page 14: Preparation Before Start-up, Prior To Initial Start-up, Transfer Switch, Fuel System, Generator Set Lubrication

    The transfer switch, as well as the generator and other standby components, must be properly located and mounted in strict compliance with applicable codes, standards and regulations. 12 Generac ® Power Systems, Inc. 2.11.3 FUEL SYSTEM Make sure the fuel supply system to the generator (a)

  • Page 15: Section 3 — Operation, Using A Standard "gts" Transfer Switch, Control Console Components, Hourmeter

    USING A STANDARD “GTS” TRANSFER SWITCH When required, the pre-packaged standby generator can be installed with an engineered Generac “GTS” type engineered automatic transfer switch. When a GTS type transfer switch is used, it controls automatic operation and automatic transfer as follows: •...

  • Page 16: Amp Inline Fuse, Set Exercise Time Switch, Manual Transfer And Start-up, Automatic Operation

    • Set the AUTO/OFF/MANUAL switch to OFF . • Set generator main circuit breaker to OFF or OPEN. 14 Generac ® Power Systems, Inc. • Locate the rocker switch on the control panel identified with the words “Set Exercise Time”...

  • Page 17: Section 4 — Maintenance, Check Engine Oil

    • If oil level is below the dipstick ADD mark, remove oil fill cap. Add the recommended oil to bring oil level up to the FULL mark. DO NOT FILL ABOVE THE “FULL” MARK. See Section 1.14 for recommended oils. Generac ® Power Systems, Inc. 15...

  • Page 18: Battery Fluid, Engine Coolant, Maintenance Owner/operator Can Perform, Check Engine Oil Level, Check Battery

    If coolant level is low, inspect gasket in radiator pressure cap. Replace cap, if necessary. To have pressure cap tested, contact an authorized Generac Service Dealer. Inspect cooling system and coolant recovery system for leaks. MAINTENANCE OWNER/ OPERATOR CAN PERFORM 4.5.1 CHECK ENGINE OIL LEVEL...

  • Page 19: Changing The Engine Air Cleaner, Spark Plugs, Coolant Change, Miscellaneous Maintenance, Cleaning The Generator

    Apply a coat of automotive type wax once a year to help prevent corrosion. SET PLUG GAP AT 0.5-0.6 mm (0.020-0.025 inch) Generac ® Power Systems, Inc. 17...

  • Page 20: Battery, Battery Maintenance, Battery Replacement, Rodent Protection

    DISTILLED WATER ONLY. DO NOT USE TAP WATER IN BATTERIES. 3. Have the state of charge and condition checked. This should be done with an automotive-type battery hydrometer. 18 Generac ® Power Systems, Inc. DANGER Storage batteries give off explosive hydrogen gas.

  • Page 21: Out Of Service Procedure, Removal From Service, Return To Service, Fuel Pipe Sizing

    If any of these caps are missing, contact a Generac Authorized Dealer. 2. Inside the generator set, the chance of rodent entry into the control panel is greatly reduced by the inclusion of adjustable wire connectors.

  • Page 22: Scheduled Maintenance

    This inspection contains some maintenance tasks which require special tools, equipment, and/or knowledge to accomplish and should be performed only by an authorized Generac Service Dealer. 3 An operational inspection of the generator set to insure it is ready to operate and carry the load when required, and to identify any potential problem areas.

  • Page 23

    3 months/ (Date- Initials) Break-in Initials) 30 hrs. Level 3 Level 4 Required Task to be done Comp. Required Semi- (Date- to be done annually/ Initials) Annually/ 50 hrs. 100 hrs. Generac ® Power Systems, Inc. 21 Task Comp. (Date- Initials)

  • Page 24

    19. Perform a five minute no-load operational run of the unit looking for any post service problems. 20. Return the unit to standby setup for operation when required. 22 Generac ® Power Systems, Inc. Level 2 Task Required Task Comp.

  • Page 25: Section 5 — Troubleshooting, Troubleshooting Points

    2. Reconnect/close wire. 3. Replace board. 1. Reset to ON or CLOSED. 2. Reset and replace, if necessary. 3. Set to GENERATOR position. 4. Contact an Authorized Generac facility. 5. Auto-reset - Wait 5 min. and attempt restart. Generac ®...

  • Page 26: Section 6 — Notes

    Section 6 — Notes Centurion Liquid-cooled 15 kW and 25 kW Generators 24 Generac ® Power Systems, Inc.

  • Page 27: Section 7 — Installation Diagram

    Section 7 - Installation Diagram Centurion Liquid-cooled 15 kW and 25 kW Generators Drawing No. 0E1533-A Generac ® Power Systems, Inc. 25...

  • Page 28: Section 8 — Electrical Data

    Section 8 - Electrical Data Centurion Liquid-cooled 15 kW and 25 kW Generators Wiring Diagram — Control Panel —Drawing No. 0E0345 26 Generac ® Power Systems, Inc. BLACK...

  • Page 29

    Wiring Diagram — 1.5L Engine — Drawing No. 0E0343-A DC-VR 1 1 2 12-V. BATTERY ELECTRONIC GOVERNOR CONTROLLER Section 8 - Electrical Data DC-A BLACK TO 120V/15A BLACK UTILITY FED WHITE CIRCUIT GREEN ACTUATOR CONNECTOR Generac ® Power Systems, Inc. 27 GOVERNOR ACTUATOR...

  • Page 30

    Section 8 - Electrical Data Centurion Liquid-cooled 15 kW and 25 kW Generators Wiring Diagram — 1.5L Guardian — Drawing No. 0E1525 BLACK BLACK BLUE BLUE ® 28 Generac Power Systems, Inc.

  • Page 31

    EH - ENGINE HEATER FS - FUEL SOLENOID GRD - GROUND ISC - IGNITION SYSTEM CONTACT LOS - LOW OIL SWITCH SM - STARTER MOTOR WTS - WATER TEMPERATURE SWITCH WLS - WATER LEVEL SWITCH Generac BLACK LEGEND ® Power Systems, Inc. 29...

  • Page 32

    084543A 098783 037398 0E1326 0A7106 074031 029333A 022507 022473 064526 0E1694 30 Generac ® Power Systems, Inc. "A" INTAKE MANIFOLD (REF.) DESCRIPTION ASM MOTOR STEPPER HOUSING GOVERNOR CONNECTOR CONNECTOR INTERFACE ASSEMBLY COVER CONNECTOR HOUSING SCREW FHM #2 X 5/8 SELF TAP SCREW HHC M6-1.0 X 10 G8.8...

  • Page 33

    SCREW TH-FRM M6-1X16 N WA Z/JS SCREW HHC M6-1.0 X 16 G8.8 WASHER LOCK M6-1/4 WASHER FLAT 1/4-M6 ZINC LUG SLDLSS #2-#8 X 17/64 CU NUT HEX M6 X 1.0 G8 YEL CHR WASHER SHAKEPROOF EXT 1/4 STL Generac ® Power Systems, Inc. 31...

  • Page 34

    Section 9 - Exploded Views and Parts Centurion Liquid-cooled 15 kW Generator Standard Compartment — Drawing No. 0E0771-E 32 Generac ® Power Systems, Inc. "Y" WELD STUD UNDER ROOF PANEL FOR ACCESS COVER NOTE: USE DOOR LATCH FASTENER TO SECURE GROUND WIRE.

  • Page 35

    ASSEMBLY COVER ACCESS WASHER FLAT 1/4 ZINC WASHER LOCK M6-1/4 GASKET CLIP-ON SELF GRIPPING LATCH AND CAM NUT HEX JAM 3/8-24 SS GASKET CLIP-ON SELF GRIPPING DUCT LH SIDE 1.5L DUCT RH SIDE 1.5L Generac ® Power Systems, Inc. 33...

  • Page 36

    Section 9 - Exploded Views and Parts Centurion Liquid-cooled 25 kW Generator Acoustic Compartment — Drawing No. 0E0772-G 34 Generac ® Power Systems, Inc.

  • Page 37

    ACSTC INSLTN 1.5L BAFFLE PANEL ACSTC INSLTN 1.5L CNTRL SUPPT GASKET CLIP-ON SELF GRIPPING LATCH AND CAM NUT HEX JAM 3/8-24 SS DUCT LH SIDE 1.5L DUCT RH SIDE 1.5L INSUL ACO 1.5L DUCT FRNT PNL Generac ® Power Systems, Inc. 35...

  • Page 38

    Section 9 - Exploded Views and Parts Centurion Liquid-cooled 15 kW and 25 kW Generators Control Panel — Drawing No. 0E0778-G 36 Generac ® Power Systems, Inc.

  • Page 39

    NUT HEX M6 X 1.0 G8 YEL CHR SCREW HHC #10-32 X 1/2 WASHER SHAKEPROOF EXT 1/4 NUT HEX #10-32 STEEL WASHER LOCK #10 CAPACITOR FILTER ASY SCREW PHTT #6-32 X 5/8 ZYC DECAL WARNING REMOVE FUSE Generac ® Power Systems, Inc. 37...

  • Page 40

    Section 9 - Exploded Views and Parts Centurion Liquid-cooled 15 kW and 25 kW Generators Engine — Drawing No. 0E1228-E 38 Generac ® Power Systems, Inc.

  • Page 41

    V-BELT 3/8 X 32-1/8 1.5L V-BELT 3/8 X 28.9 1.5L SPACER PULLEY FILTER OIL ADAPTER DRAIN OIL GROUND WIRE (STARTER) CLAMP HOSE - OIL DRAIN HOSE ASM.-OIL DRAIN CAP HEX 1/4NPT BRASS SCREW CRMPTIT 1/4-20 X 5/8 Generac ® Power Systems, Inc. 39...

  • Page 42

    Section 9 - Exploded Views and Parts Centurion Liquid-cooled 15 kW and 25 kW Generators Radiator — Drawing No. 0E0769-H 40 Generac ® Power Systems, Inc.

  • Page 43

    TANK COOLANT RECOVERY BRACKET WATER BOTTLE 1.5L MIT BARBED STR 1/4 NPT X 3/8 FOAM 1.5 X 1 ADH BAK SCREW SWAGE 10-32 X 5/16 Z/YC SPRING CLIP HOLDER .37-.62 ASSY. RAD. DRAIN HOSE Generac ® Power Systems, Inc. 41...

  • Page 44

    Section 9 - Exploded Views and Parts Centurion Liquid-cooled 15 kW and 25 kW Generators Fuel System — Drawing No. 0E0774-D "C" "D" PORT "OUT 2" L.P. VAPOR 42 Generac ® Power Systems, Inc. 37 35 PORT "OUT 1" (NATURAL GAS) "D"...

  • Page 45

    BARBED STR 3/8NPT X 1/2 W/VS HOSE LPG & NAT GAS 1/2 ID (23"LG) CLAMP HOSE #10 .56 - 1.06 PLATE, GAS REGULATOR MOUNTING SCREW HHC M8-1.25 X 16 G8.8 SCREW TH-FRM M6-1 X 16 N WA Z/JS Generac ® Power Systems, Inc. 43...

  • Page 46

    Section 9 - Exploded Views and Parts Centurion Liquid-cooled 15 kW and 25 kW Generators Alternator — Drawing No. 0A9348-F 44 Generac ® Power Systems, Inc.

  • Page 47

    WASHER FLAT 3/8-M10 ZINC SPACER ROTOR SHAFT SCREW HHC M12-1.25 X 25 G8.8 WASHER FLAT M12 DECAL WARN ENG START WASHER SHAKEPROOF INT #8 WASHER FLAT .34 ID X .75 OD DECAL, DANGER STANBY UNITS Generac ® Power Systems, Inc. 45...

  • Page 48

    022131 046526 052213 075763 0D8668 050331A 050331 0C2454 025507 027482 46 Generac ® Power Systems, Inc. STARTER SOLENOID DESCRIPTION BATT 12VDC 75-AH 26 CABLE BATT RED #4 X 20.00 CABLE BATT BLK #4 X 23.00 ASSY,WIRE#16 RED 1.6 WASHER FLAT 3/8 ZINC WASHER LOCK M10 SCREW HHC M10-1.25 X 20 G8.8...

  • Page 49

    BLANKET, EXHAUST 1.5L MITSU MUFFLER,1.5L ACOUSTIC&STANDARD STRAP MUFFLER 6" DIA SCREW HHC M8-1.25 X 20 G8.8 WASHER FLAT 5/16 ZINC WASHER LOCK M8-5/16 NUT HEX M8-1.25 G8 YEL CHR CAP RAIN 2" SCREW RHM 1/4-20 X 2-1/4 Generac ® Power Systems, Inc. 47...

  • Page 50: Section 10 — Warranty

    Owner’s Manual. For warranty purposes, Generac recommends that you retain all receipts covering maintenance on your engine. However, Generac cannot deny warranty solely due to the lack of receipts or for your failure to ensure the completion of all scheduled maintenance.

  • Page 51: Emission Control System Warranty

    Such use voids this ECS Warranty and shall be sufficient grounds for disallowing an ECS Warranty claim. Generac shall not be held liable hereunder for failures of any warranted parts of a Generac engine caused by the use of such an unapproved, add-on, modified, counterfeit and/or “grey market”...

  • Page 52

    "PREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS" For a period of two years from the date of original sale, Generac Power Systems, Inc. (Generac) will, at its option, repair or replace any part which, upon examination, inspection and testing by Generac or a Generac Authorized Warranty Service Dealer, is found to be defective under normal use and service, in accordance with the warranty schedule set forth below.

This manual also for:

Centurion 004912-0, Centurion 004913-2

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