Page 2 - INTRODUCTION; READ THIS MANUAL THOROUGHLY; This symbol points out potential explosion hazard.; CONTENTS; Engine; OPERATION AND MAINTENANCE; DANGER; AUTHORIZED
Generac ® Power Systems, Inc. INTRODUCTION Thank you for purchasing this model of the Guardianproduct line by Generac Power Systems, Inc.. Thismodel is a compact, high performance, air-cooled,engine-driven generator designed to automaticallysupply electrical power to operate critical loads dur-ing a...
Page 3 - Table of Contents; Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators; Section 2 – Post Installation Start-up
Table of Contents Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Generac ® Power Systems, Inc. 1 Introduction ........................Inside Front Cover Read This Manual Thoroughly ........................IFCContents ..........................................................IFCOperation and Ma...
Page 4 - Owner’s Manual; GENERAL HAZARDS
2 Generac ® Power Systems, Inc. Study these SAFETY RULES carefully beforeinstalling, operating or servicing this equipment.Become familiar with this Owner’s Manual and with the unit. The generator can operate safely, efficientlyand reliably only if it is properly installed, operatedand maintained. M...
Page 5 - ELECTRICAL HAZARDS; STANDARDS INDEX; IMPORTANT SAFETY INSTRUCTIONS
Generac ® Power Systems, Inc. 3 ELECTRICAL HAZARDS • All generators covered by this manual produce dangerous electrical voltages and can cause fatalelectrical shock. Utility power delivers extremelyhigh and dangerous voltages to the transfer switchas does the standby generator when it is in opera-ti...
Page 6 - PROTECTION SYSTEMS; INTERRUPTER PROTECTION; Section 1 — General Information
Only qualified electricians or contractors shouldattempt such installations, which must complystrictly with applicable codes, standards andregulations. 1.1 UNPACKING/INSPECTION After unpacking, carefully inspect the contents for damage. • This standby generator set has been factory sup- plied with a...
Page 7 - GENERATOR
Section 1 — General Information Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Generac ® Power Systems, Inc. 5 1.4 THE GENERATOR Control Panel Battery Compartment Fuel Inlet Air Filter ExhaustEnclosure Oil Filter Data Decal Fuel Regulator Oil Check/Fill ControlPanel Air Filter ExhaustEnclosure...
Page 9 - SYSTEM SET LED; Figure 1.3 – Demand Regulator; Full Load
Generac ® Power Systems, Inc. 7 1.6 SYSTEM SET LED The “System Set” LED is lit when all of the followingconditions are true: 1. The AUTO/OFF/MANUAL switch is set to the AUTO position. 2. The utility voltage being supplied to the unit is being sensed by the PCB. If the utility sense volt-age is not c...
Page 10 - sure is intended for indoor use only
NOTE: The natural gas adjustment screw is preset duringinstallation and should not need any furtheradjustment. 1.9.2 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 isNOT INCLUDED with the generator. A ...
Page 11 - BATTERY INSTALLATION; Figure 1.5 – Battery Cable Connections; • Remove the 5A and 15A fuses from the generator
Generac ® Power Systems, Inc. 9 • Install the transfer switch indoors on a firm, stur- dy supporting structure. • To prevent switch distortion, level the switch if nec- essary. This can be done by placing washersbetween the switch enclosure and mounting sur-face. • Never install the switch where wat...
Page 12 - BEFORE INITIAL START-UP; Section 2 — Post Installation Start-up and Adjustments
10 Generac ® Power Systems, Inc. Do not open or mutilate the battery. Releasedelectrolyte has been known to be harmful tothe skin and eyes, and to be toxic. The electrolyte is a dilute sulfuric acid that isharmful to the skin and eyes. It is electricallyconductive and corrosive. The following proced...
Page 13 - GENERATOR TESTS UNDER LOAD
Generac ® Power Systems, Inc. 11 7. When certain that utility supply voltage is com- patible with transfer switch and load circuit rat-ings, turn OFF the utility power supply to thetransfer switch. 8. On the generator panel, set the AUTO/OFF/ MANUAL switch to MANUAL. The engine shouldcrank and start...
Page 14 - Adjustment Screw; Unit
12 Generac ® Power Systems, Inc. 5. Turn ON the utility power supply to the transfer switch, using the means provided (such as a util-ity main line circuit breaker). 6. Set the AUTO/OFF/MANUAL switch to AUTO. The system is now ready for automatic operation. 7. Turn OFF the utility power supply to th...
Page 15 - A service fee may be charged for this adjustment.; ENGINE GOVERNOR ADJUSTMENT; KW UNITS; Figure 2.3 — Engine Governor Adjustment; Full Load Speed Adjust Screw
Generac ® Power Systems, Inc. 13 Section 2 — Post Installation Start-up and Adjustments Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators If this procedure or the equipment are not available,locate the nearest Generac Guardian Dealer and theycan perform the adjustments. NOTE: A service fee may be...
Page 16 - Section 3 — Operation; Figure 3.1 – Generator Control Panel
14 Generac ® Power Systems, Inc. Section 3 — Operation Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators NOTE: The access panel on top of the control panel mustbe removed to adjust the voltage regulator. NOTE: The voltage regulator is housed above the genera-tor's control panel. The regulator mai...
Page 17 - MANUAL TRANSFER OPERATION; POWER SOURCE; Figure 3.2 – Manual Transfer Switch Operation
Generac ® Power Systems, Inc. 15 3. Set the generator’s AUTO/OFF/MANUAL switch to AUTO. 4. Set the generator’s main circuit breaker to its ON (or closed) position. With the preceding steps complete, the generator willstart automatically when utility source voltage dropsbelow a preset level. After th...
Page 18 - SOURCE; SETTING THE EXERCISE TIMER; LOW OIL PRESSURE SWITCH; Figure 3.3 – Low Oil Pressure and; OVERCRANK; Oil Filter
16 Generac ® Power Systems, Inc. 3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE When utility power has been restored, transfer backto that source and shut down the generator. This canbe accomplished as follows: 1. Set the generator’s main circuit breaker to its OFF (or open) position. 2. Let the engine...
Page 19 - Approximately 90 seconds total; OVERSPEED; FUSE; Figure 4.1 – Generator Control Panel; Remove the dipstick and wipe it dry with a; Oil Dipstick and Fill; Section 4 — Maintenance
Generac ® Power Systems, Inc. 17 NOTE: If the fault is not repaired, the overcrank featurewill continue to activate. 3.7.3.1 Approximate Crank Cycle Times • 15 seconds ON• 7 seconds OFF• 7 seconds ON• 7 seconds OFF• Repeat for 45 seconds Approximately 90 seconds total 3.7.4 OVERSPEED This feature pr...
Page 20 - CHANGING THE ENGINE OIL; Figure 4.4 – Oil Drain Hose and Filter; CHANGING THE OIL FILTER; GENERATORS; Figure 4.6 — 7 kW, Engine Air Cleaner Location; Air Cleaner
18 Generac ® Power Systems, Inc. 4.3 CHANGING THE ENGINE OIL 4.3.1 ENGINE OIL RECOMMENDATIONS Use oil of American Petroleum Institute (API) ServiceClass SG, SH or SJ. Use all season SAE 5W-30Synthetic oil. Organic break-in oil is required beforeusing synthetic oil. NOTE: The unit is supplied with “b...
Page 21 - BATTERY MAINTENANCE; Cover
Generac ® Power Systems, Inc. 19 Figure 4.7 — 12 kW and 15 kW Engine Air Cleaner 4.6 SPARK PLUG(S) Reset the spark plug(s) gap or replace the sparkplug(s) as necessary. See Section 4.13 for mainte-nance requirements. 1. Clean the area around the base of the spark plug(s) to keep dirt and debris out ...
Page 22 - COOLING SYSTEM; Figure 4.9 – Cooling Vent Locations
20 Generac ® Power Systems, Inc. Lead-acid batteries present a risk of firebecause they generate hydrogen gas. The following procedures are to be followed: • DO NOT SMOKE when near the battery;• DO NOT cause flame or spark in battery area; and• Discharge static electricity from body before touch- in...
Page 23 - ATTENTION AFTER SUBMERSION; MUST NOT; CORROSION PROTECTION
Generac ® Power Systems, Inc. 21 The exhaust from this product gets extremelyhot and remains hot after shutdown. Highgrass, weeds, brush, leaves, etc. must remainclear of the exhaust. Such materials may igniteand burn from the heat of the exhaust system. The maximum ambient temperature for thegenera...
Page 24 - SERVICE SCHEDULE; ATTENTION: It is recommended that all service work
22 Generac ® Power Systems, Inc. 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 Guardian Authorized Dealer. SYSTEM/COMPONENT PROCEDURE FREQUENCY X = Action Inspect Chang...
Page 25 - Section 5 — Troubleshooting; GUIDE; PROBLEM; *Contact the nearest Guardian Authorized Dealer for assistance.
Generac ® Power Systems, Inc. 23 Section 5 — Troubleshooting Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators 5.1 TROUBLESHOOTING GUIDE PROBLEM CAUSE CORRECTION The engine will not crank. 1. Fuse blown. 1. Replace 15A fuse in generator control panel. 2. Loose, corroded or defective 2. Tighten, c...
Page 26 - Section 6 — Electrical Data
24 Generac ® Power Systems, Inc. Section 6 — Electrical Data Guardian Air-cooled 7 kW, 12 kW and 15 kW GeneratorsWiring Diagram – 12 & 15 kW – Drawing No. 0D8500-B TX - TRANSFORMER , 16 Va c 56 V A & 16 Va c 1 V A (DUAL SEC . ) 0 CUSTOMER SUPPLIED BLACK BATTERY 12 V LOP HTO 0 SP2 SP1 IM2 86 ...
Page 34 - Section 7 — Exploded Views and Parts Lists
32 Generac ® Power Systems, Inc. 23 36 24 37 49 35 26 46 49 2 43 49 43 32 34 18 50 7 4 35 25 51 15 48 21 1 90 91 93 13 42 39 10 3 93 25 35 14 88 54 9 8 27 35 1 49 49 49 11 50 16 17 1 5 47 19 12 6 31 44 30 29 28 87 86 41 40 55 57 56 58 52 49 20 52 72 60 44 62 64 66 59 71 69 68 71 68 69 38 73 75 46 74...
Page 37 - DESCRIPTION
Generac ® Power Systems, Inc. 35 ITEM PART NO. QTY. DESCRIPTION 1 0E7886 A 1 CI R CUIT B R E A KE R 3 0 A X 2P 240V (7K W ) 0E7886C 1 CI R CUIT B R E A KE R 40 A X 2P 240V (8.5K W ) 0E7886D 1 CI R CUIT B R E A KE R 45 A X 2P 240V (11K W ) 0E7886E 1 CI R CUIT B R E A KE R 50 A X 2P 240V (12K W ) 0E78...
Page 39 - ITEM
Generac ® Power Systems, Inc. 37 ITEM PART NO. QTY. DESCRIPTION 1 0D4801 1 BOX GT S LO A D CE N TE R 2 0D4800 1 COVE R , 8 PO S ITIO N GT S LO A D CE N TE R 3 0C22 3 7 1 T RANS FE R SW ITCH HO M E S T AN DBY 100 A 2P 250V 3A 077220 1 COIL UTILITY 3 B 077220 A 1 COIL S T AN DBY 3 C 082574 1 I NS UL A...
Page 55 - Section 8 — Mounting Dimensions
Generac ® Power Systems, Inc. 53 Section 8 — Mounting Dimensions Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Drawing No. 0D3739-B T M6PEM-TM6PM6PEM PE REAR VIEW L EFT S IDE VIEW TRANSFER SWITCH R IG HT S IDE VIEW F R O NT VIEW AIR NTAKE (IF SUPPLIED ) "D O N O T LIFT BY THE R OO F" ...
Page 56 - Section 9 — Notes
54 Generac ® Power Systems, Inc. Section 9 — Notes Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
Page 58 - CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT; YOUR WARRANTY RIGHTS AND OBLIGATIONS; ATTENTION WARRANTY DEPARTMENT
56 Generac ® Power Systems, Inc. CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS The California Air Resources Board (CARB) and Generac Power Systems, Inc. (Generac) are pleased to explain the EmissionControl System Warranty on your new engine. * In California, new...
Page 59 - EMISSION CONTROL SYSTEM WARRANTY; EMISSION RELATED PARTS INCLUDE THE FOLLOWING:; Section 10 – Warranty
Generac ® Power Systems, Inc. 57 EMISSION CONTROL SYSTEM WARRANTY Emission Control System Warranty (ECS Warranty) for 1995 and later model year engines: (a) Applicability: This warranty shall apply to 1995 and later model year engines. The ECS Warranty Period shall begin on the date the new engine o...
Page 60 - GENERAC POWER SYSTEMS “TWO YEAR” LIMITED WARRANTY FOR GUARDIAN; WARRANTY SCHEDULE; YEARS ONE AND TWO –; THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING:
Part No. 0E8012 Revision D (02/25/04) Printed in U.S.A. Section 10 – Warranty Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators GENERAC POWER SYSTEMS “TWO YEAR” LIMITED WARRANTY FOR GUARDIAN ® “PREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS” For a period of two years from the date of original...
