Summary of Contents for Generac Power Systems 04758-2, 04759-2, 04760-2
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*This manual should remain with the unit.* Not intended for use as Primary Power in place of utility or in life-support applications. DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!! Installation and Owner’s Manual Air-cooled Automatic Models: 04758-2 (6 kW NG, 7 kW LP) 04759-2 (12 kW NG, 12 kW LP) 04760-2 (13 kW NG, 15 kW LP) GENERAC...
INTRODUCTION Thank you for purchasing this Guardian model by Generac Power Systems Inc.. This model is a compact, high per- formance, air-cooled, engine-driven generator designed to automatically supply electrical power to operate critical loads during a utility power failure. This unit is factory installed in an all-weather, metal enclosure that is intended exclusively for outdoor installation.
Introduction ...Inside Front Cover Read This Manual Thoroughly ...IFC Contents ...IFC Operation and Maintenance ...IFC How to Obtain Service ...IFC Authorized Dealer Locator Number ...IFC Safety Rules ...2 Standards Index ...3 Section 1 – General Information ...4 Unpacking/Inspection ...4 Protection Systems ...4 System Set LED ...4 The Generator ...5 Specifications ...6...
IMPORTANT SAFETY INSTRUCTIONS Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe operation be copied and posted near the unit’s installation site. Safety should be stressed to all operators and potential operators of this equipment.
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 to the transfer switch as does the standby generator when it is in opera- tion.
Section 1 — General Information Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators DANGER Only qualified electricians or contractors should attempt such installations, which must comply strictly with applicable codes, standards and regulations. UNPACKING/INSPECTION After unpacking, carefully inspect the contents for damage.
Section 1 — General Information Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators SPECIFICATIONS 1.5.1 GENERATOR Rated Max. Continuous Power Capacity (Watts*) Rated Voltage Rated Max. Continuous Load Current (Amps) 120 Volts + 240 Volts Main Line Circuit Breaker Phase Number of Rotor Poles Rated AC Frequency...
FUEL REQUIREMENTS AND RECOMMENDATIONS With LP gas, use only the vapor withdrawal system. This type of system uses the vapors formed above the liquid fuel in the storage tank. The engine has been fitted with a fuel carburetion system that meets the specifications of the 1997 California Air Resources Board for tamper-proof dual fuel systems.
Section 1 — General Information Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators ◆ 1.8.2 12KW AND 15KW, 990CC ENGINES To reconfigure the fuel system from NG to LP , follow these steps: NOTE: The primary regulator for the propane supply is NOT INCLUDED with the generator.
◆ 1.9.2 TRANSFER SWITCH 1.9.2.1 7 kW, 12 kW and 15 kW Units Transfer switches for use with these generators are sold separately and can be purchased from Generac Authorized Dealers. • Install the transfer switch on a firm, sturdy sup- porting structure.
Section 2 — Post Installation Start-up and Adjustments Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators • Remove watches, rings or other metal objects; • Use tools with insulated handles; • Wear rubber gloves and boots; • Do not lay tools or metal parts on top of the battery;...
3. Check utility power source voltage across termi- nals N1 and the transfer switch neutral lug; then across terminal N2 and neutral. Nominal line-to- neutral voltage should be 120 volts AC. 4. When certain that utility supply voltage is com- patible with transfer switch and load circuit rat- ings, turn OFF the utility power supply to the transfer switch.
Section 2 — Post Installation Start-up and Adjustments Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators 4. Manually set the transfer switch to the UTILITY position, i.e., load terminals connected to the util- ity power source side. 5. Turn ON the utility power supply to the transfer switch, using the means provided (such as a util- ity main line circuit breaker).
If this procedure or equipment are not available, locate the nearest Generac Guardian Dealer and they can perform the adjustments. NOTE: A service fee may be charged for this adjustment. ENGINE GOVERNOR ADJUSTMENT If both AC frequency and voltage are correspondingly high or low, adjust the engine governor as follows: ◆...
Section 3 — Operation Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators ◆ 2.7.3 ADDITIONAL CORROSION PROTECTION Periodically spray all engine linkage parts and brack- ets with corrosion inhibiting spray such as WD-40 or a comparable product. VOLTAGE REGULATOR ADJUSTMENT With the frequency between 62-63.5 Hertz, slowly turn the slotted potentiometer (Figure 2.6) until line...
AUTOMATIC TRANSFER OPERATION To select automatic operation, do the following: 1. Make sure the transfer switch main contacts are set to their “Utility” position, i.e., loads connected to the utility power source (Figure 3.2). 2. Be sure that normal utility power source voltage is available to transfer switch terminal lugs N1 and N2.
Section 3 — Operation Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Figure 3.2 – Manual Transfer Switch Operation 3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE When utility power has been restored, transfer back to that source and shut down the generator. This can be accomplished as follows: 1.
Figure 3.3 – Low Oil Pressure and High Temperature Switches Low Oil Switch Drain Hose Oil Filter 3.7.3 OVERCRANK This feature prevents the generator from damaging itself when it continually attempts to start and anoth- er problem, such as no fuel supply, prevents it from starting.
Figure 4.6 — 7 kW, Engine Air Cleaner Location Air Cleaner Figure 4.7 — 12 kW and 15 kW Engine Air Cleaner Screw Cover SPARK PLUG(S) Reset the spark plug(s) gap or replace the spark plug(s) as necessary. See Section 4.13 for mainte- nance requirements.
Section 4 — Maintenance Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators • Where electrolyte contacts the eyes, immediately flush thoroughly with water and seek medical atten- tion; and • Spilled electrolyte is to be washed down with an acid neutralizing agent.
Figure 4.9 – Cooling Vent Locations The maximum ambient temperature for the generator is 48.9° C (104° F). 4.10 ATTENTION AFTER SUBMERSION If the generator has been submerged in water, it MUST NOT be started and operated. Following any sub- mersion in water, have a Generac Authorized Dealer thor- oughly clean and dry the generator.
Section 4 — Maintenance Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators 4.13 SERVICE SCHEDULE ATTENTION: It is recommended that all service work be performed by the nearest Generac Authorized Dealer. SYSTEM/COMPONENT X = Action R = Replace as Necessary * = Notify Dealer if Repair is Needed.
TROUBLESHOOTING GUIDE PROBLEM The engine will not crank. The engine cranks but will not start. The engine starts hard and runs rough. The AUTO/OFF/MANUAL switch is set to OFF , but the engine continues to run. There is no AC output from the generator.
Section 7 — Exploded Views and Parts Lists Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Enclosure – Drawing No. 0F0080-B PRE PACKAGED UNITS ONLY 32 Generac ® Power Systems, Inc.
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ITEM PART NO. QTY. DESCRIPTION 0C6140 ASSEMBLY, ENCLOSURE BASE 0D1901 ASSEMBLY, ENCLOSURE BASE (7KW) 0C6735 SUPPORT, ROOF FOLDING 0F0063 ENCLOSURE, FRONT 0C7062 ENCLOSURE, EXHAUST SIDE 0C7062A ENCLOSURE, EXHAUST SIDE (7KW) 0F0066 ENCLOSURE, SIDE & BACK 0F0066A ENCLOSURE, SIDE & BACK (7KW) 0E9873 ENCLOSURE, ROOF 0C7065...
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Section 7 — Exploded Views and Parts Lists Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Control Panel – Drawing No. 0E7974-G 34 Generac ® Power Systems, Inc.
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ITEM PART NO. QTY. DESCRIPTION 0E7886A CIRCUIT BREAKER 30A X 2P 240V (7KW) 0E7886C CIRCUIT BREAKER 40A X 2P 240V (8.5KW) 0E7886D CIRCUIT BREAKER 45A X 2P 240V (11KW) 0E7886E CIRCUIT BREAKER 50A X 2P 240V (12KW) 0E7886F CIRCUIT BREAKER 60A X 2P 240V (13KW) 0E7886G CIRCUIT BREAKER 70A X 2P 240V (15KW) 0A1801...
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Section 7 — Exploded Views and Parts Lists Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators GT-990 Engine – Drawing No. 0E8774-J Part 1 36 Generac ® Power Systems, Inc.
(ECS Warranty), which is provided to you by Generac pursuant to California and federal 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.
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Emission Control System Warranty (ECS Warranty) for 1997 and later model year engines: (a) Applicability: This warranty shall apply to 1997 and later model year engines. The ECS Warranty Period 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 24 consecutive months thereafter.
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"PREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS" For a period of two years from the date of original sale, Generac Power Systems, Inc. (Generac) warrants that its Guardian generator will be free from defects in material and workmanship for the items and period set forth below. Generac will, at its option, repair or replace any part which, upon examination, inspection and testing by Generac or a Guardian Authorized Warranty Service Dealer, is found to be defective.