Generac 4451 - Manuals

3 ELECTRICAL HAZARDS • All generators covered by this manual produce dangerous electrical voltages and can cause fatal electrical shock. Utility power delivers extremely high and dangerous voltages as does the generator when it is in operation. Avoid contact with bare wires, terminals, connections, ...

1.1 UNPACKING • Set the palleted carton on a rigid flat surface.• Remove staples along bottom of carton that fasten carton to pallet. Open carton from top. • Remove all packaging material.• Remove separate accessory box.• Lift carton off the generator.• Remove generator from shipping pallet by remov...

5 1.2.3 BATTERY CONNECTION • The battery shipped with the generator has been provided fully charged. Caution must be taken when connecting the battery. • Cut the tie wrap cable holding the RED and BLACK battery cables to the stator. • Connect the RED battery cable to the battery Positive terminal (+...

ITEM PART NO. QTY. DESCRIPTION 1 087968 1 SWITCH, ROCKER -/0 2 090418 1 OUTLET, 12VDC SNAP 3 0D6640 1 COVER, GOVERNOR CONTROL 4 090987 6 SCREW PPHM M3-0.5 X 12 5 0D2502 1 PANEL, SHEET METAL 6 068868 2 OUTLET 30A 120V RECEPT 7 022985 2 WASHER FLAT #6 8 043182 10 WASHER LOCK M3 9 051714 6 NUT HEX M3-0...

30 Section 7 — Exploded Views and Parts Lists Commercial-Industrial-Residential Portable Generator System Control Panel – Drawing No. 0E0227B 2.2 CORD SETS AND CONNECTION PLUGS 2.2.1 AC, 20 AMP, DUPLEX RECEPTACLE This is a 120 Volt outlet protected against overload by a 20 Amp push-to-reset circuit ...

Figure 9 - 120 VAC, 30 Amp Receptacle Use this receptacle to operate 120 Volt AC, 60 Hz, single phase loads requiring up to 3600 watts (3.6 kW) of power at 30 Amps. The outlet is protected by a 30 Amp push-to-reset circuit breaker. 2.2.4 120/240V AC, 30 AMP RECEPTACLE Use a NEMA L14-30 plug with thi...

2.3 HOW TO USE THE GENERATOR If you have any problems operating your generator, please call the generator helpline at 1-800-333-1322. 2.3.1 GROUNDING THE GENERATOR The National Electrical Code requires that the frameand external electrically conductive parts of thisgenerator be properly connected to...

10 2.5 WATTAGE REFERENCE GUIDE Device . . . . . . . . . . . . . . . . . . . . . . .Running Watts *Air Conditioner (12,000 Btu) . . . . . . . . . . . . . . . . .1700 *Air Conditioner (24,000 Btu) . . . . . . . . . . . . . . . . .3800 *Air Conditioner (40,000 Btu) . . . . . . . . . . . . . . . . .6000...

11 2.6.2 ADDING GASOLINE WARNING: Never fill fuel tank indoors. Never fill fuel tank when engine is running or hot. DO NOT light a cigarette or smoke when filling the fuel tank. Caution: Do not overfill the fuel tank. Always leave room for fuel expansion. • Use regular UNLEADED gasoline with the gen...

12 • Move engine CHOKE knob to “Full Choke” position. Figure 17 - Full Choke Position • To start engine, press and hold the Start/Run/Stop switch in the “Start” position. The engine will crank and attempt to start. When the engine starts, release the switch to the run position. • When the engine sta...

2.12 CHARGING A BATTERY DANGER! Storage batteries give off explosive hydrogen gas while recharging. An explosive mixture will remain around the battery for a long time after it has been charged. The slightest spark can ignite the hydrogen and cause an explosion. Such an explosion can shatter the bat...

3.2.1 GENERATOR SPECIFICATIONS MODEL GPS 12500 GPS 15000 Model # 004451-1 004582-1 Rated Max. Power 12.5 kW 15.0 kW Surge Power 18.75 kW 22.5 kW Rated AC Voltage 120/240 120/240 Rated Max AC LoadCurrent @ 240V 52.0 Amps 62.5 Amps Current @ 120V 104.0 Amps 125.0 Amps Rated Frequency 60 Hz @ 3600 RPM ...

15 3.3 GENERAL RECOMMENDATIONS The warranty of the generator does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, the operator must maintain the generator as instructed in this manual. Some adjustments will need to be made periodical...

16 3.3.6 REPLACING THE SPARK PLUG Use Champion RC14YC spark plug or equivalent. The correct air gap is 0.76 mm (0.030 in.). Replace the plug once each year. This will help your engine start easier and run better. 1. Stop the engine and pull the spark plug wire off of the spark plug. 2. Clean the are...

Figure 21 - Spark Arrestor 3.6 ADJUSTING VALVE CLEARANCE After the first 50 hours of operation, you should adjustthe valve clearance in the engine. Important: If you feel uncomfortable about doing this procedure or you don't have the proper tools, please take your generator in to the nearest service...

18 Section 3 — Maintenance Commercial-Industrial-Residential Portable Generator System 3.7 GENERAL The generator should be started at least once every seven days and be allowed to run at least 30 minutes. If this cannot be done and you must store the unit for more than 30 days, use the following inf...

Owner’sManual • SAFETY • ASSEMBLY • OPERATION • TROUBLESHOOTING • ELECTRICAL DATA • PARTS • WARRANTY 1-800-333-1322 ULTRA SOURCE Portable Generator COMMERCIAL • INDUSTRIAL • RESIDENTIAL MODELS: 004451 (12,500 WATT) 004582 (15,000 WATT) AUTHORIZED DEALER SUPPORT: GENERAC POWER SYSTEMS, INC. P.O. Box ...