Page 2 - INTRODUCTION; READ THIS MANUAL THOROUGHLY; This symbol points out potential explosion hazard.; and thoroughly; CONTENTS; Engine; OPERATION AND MAINTENANCE
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 u...
Page 3 - Table of Contents; 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; DANGER
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 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...
Page 6 - PROTECTION SYSTEMS; Section 1 — General Information
Only qualified electricians or contractors shouldattempt such installations, which must comply strictlywith applicable codes, standards and regulations. 1.1 UNPACKING/INSPECTION After unpacking, carefully inspect the contents for damage. • This standby generator set has been factory sup- plied with ...
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 YOUR GENERATOR
Page 9 - FUEL CONSUMPTION; Figure 1.4 – Demand Regulator
Generac ® Power Systems, Inc. 7 1.6 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...
Page 10 - LOCATION; sure is intended for indoor use only; BATTERY INSTALLATION; Figure 1.5 – Battery Cable Connections
3. The unit has been factory set to run on NG fuel. To reset the system to run on LP fuel, turn thetwo adjustment screws 1/2 turn clockwise. Use alarge screwdriver to make this adjustment. Besure to replace the plastic plug in the back of theenclosure once the adjustment has been made. 4. The fuel s...
Page 11 - • Disconnect charging source prior to connecting or dis-; BEFORE INITIAL START-UP; Turn OFF the utility power supply to the transfer; Section 2 — Post Installation Start-up and Adjustments
Generac ® Power Systems, Inc. 9 NOTE: Your generator is equipped with a battery tricklecharger that is active when your unit is set up forautomatic operation. With the battery installedand utility power source voltage available to thetransfer switch, the battery receives a tricklecharge while the en...
Page 13 - Figure 2.1 — Dual Fuel Regulators; Unit
Generac ® Power Systems, Inc. 11 8. Turn ON electrical loads. Apply an electrical load equal to the full rated wattage/amperage capacityof the installed generator. 9. Connect an accurate AC frequency meter across terminal lugs E1 and E2. Voltage should begreater than 230 volts; frequency should begr...
Page 14 - Figure 2.2 — Placement of Regulator; A service fee may be charged for this adjustment.; ENGINE GOVERNOR ADJUSTMENT; KW UNITS; Figure 2.3 — Engine Governor Adjustment
12 Generac ® Power Systems, Inc. Figure 2.2 — Placement of Regulator 7. Turn utility power to the main distribution panel back on. This can be done by switching the serv-ice main breaker to the on or closed position.Allow the generator to shut down. Do not make any unnecessary adjustments.Factory se...
Page 15 - Section 3 — Operation; Figure 2.5 – Voltage Adjustment Potentiometer
Generac ® Power Systems, Inc. 13 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 ora comparable product. 2.8 VOLTAGE REGULATOR ADJU...
Page 16 - MANUAL TRANSFER OPERATION; POWER SOURCE
14 Generac ® Power Systems, Inc. Section 3 — Operation Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators With the switch set to AUTO, the engine maycrank and start at any time without warning.Such automatic starting normally occurs whenutility power source voltage drops below a pre-set level or d...
Page 17 - Figure 3.2 – Manual Transfer Switch Operation; SETTING THE EXERCISE TIMER
Generac ® Power Systems, Inc. 15 Do not attempt to activate the transfer switchmanually until all power voltage supplies tothe switch have been positively turned off.Failure to turn off all power voltage suppliesmay result in extremely hazardous and possiblyfatal electrical shock. 4. Use the manual ...
Page 18 - LOW OIL PRESSURE SWITCH; Figure 3.3 – Low Oil Pressure and; OVERCRANK; Approximately 90 seconds total; OVERSPEED; FUSE; Figure 4.1 – Generator Control Panel; Remove the dipstick and wipe it dry with a
16 Generac ® Power Systems, Inc. 3.7 PROTECTION SYSTEMS 3.7.1 LOW OIL PRESSURE SWITCH This switch (Figure 3.3) has normally closed contactsthat are held open by engine oil pressure during crank-ing and operating. Should oil pressure drop below the8 psi range, switch contacts close, and the engineshu...
Page 19 - CHANGING THE ENGINE OIL; Figure 4.4 – Oil Drain Hose and Filter; CHANGING THE OIL FILTER; Oil Filter; Oil Dipstick and Fill; Section 4 — Maintenance
Generac ® Power Systems, Inc. 17 Never operate the engine with the oil levelbelow the “Add” mark on the dipstick. Doingthis could damage the engine. 4. Install the dipstick.5. Reset the Auto/Off/Manual switch to its original position. Figure 4.2 — Oil Dipstick and Fill, 7 kW Figure 4.3 — Oil Dipstic...
Page 20 - GENERATORS; Figure 4.6 — 7 kW, Engine Air Cleaner Location; BATTERY MAINTENANCE
18 Generac ® Power Systems, Inc. 4.5 CHANGING THE ENGINE AIR CLEANER 4.5.1 7 KW, 12 KW AND 15 KW GENERATORS See Figures 1.2 and 1.3, (Page 5), for the location of your air cleaner. Use the following procedure (Figure 4.6):1. Turn the two screws counterclockwise to loosen.2. Remove the cover and air ...
Page 21 - ADJUSTING VALVE CLEARANCE; If you feel uncomfortable about doing this
Generac ® Power Systems, Inc. 19 • 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; and • Disconnect charging source prior to connecting or dis- connecting battery terminals. Do not...
Page 22 - COOLING SYSTEM; Figure 4.9 – Cooling Vent Locations; ATTENTION AFTER SUBMERSION; MUST NOT; be started and operated. Following any; CORROSION PROTECTION
20 Generac ® Power Systems, Inc. Figure 4.10 - Valve Clearance Adjustment • Install new valve cover gasket.• Re-attach the valve cover. NOTE: Start all four screws before tightening or you willnot be able to get all the screws in place. Makesure the valve cover gasket is in place. • Re-attach the sp...
Page 23 - OUT OF SERVICE PROCEDURE
Generac ® Power Systems, Inc. 21 4.12 OUT OF SERVICE PROCEDURE 4.12.1 REMOVAL FROM SERVICE If you cannot exercise the generator every seven days,and it is to be out of service longer than 90 days, pre-pare the generator for storage as follows:1. Start the engine and let it warm up.2. Close the fuel ...
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 your nearest Generac/Guardian Authorized Dealer. SYSTEM/COMPONENT PROCEDURE FREQUENCY X = Action Insp...
Page 25 - Section 5 — Troubleshooting; GUIDE; PROBLEM
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 fuse. 2. Loose, corroded or defective 2. Tighten, clean or replace battery cables a...
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. 0C7830-B
Page 35 - Section 7 — Exploded Views and Parts Lists
Generac ® Power Systems, Inc. 33 ITEM PART NO. QTY. DESCRIPTION 1 0C6140 1 ASSEMBLY, ENCLOSURE BASE (12KW / 15KW) 0D1901 1 ASSEMBLY, ENCLOSURE BASE (7KW) 2 0C6735 2 SUPPORT, ROOF FOLDING 3 0C7061 1 ENCLOSURE, FRONT 4 0C7062 1 ENCLOSURE, EXHAUST SIDE (12KW / 15KW) 0C7062A 1 ENCLOSURE, EXHAUST SIDE (7...
Page 55 - Section 8 — Notes
Generac ® Power Systems, Inc. 53 Section 8 — Notes Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators
Page 57 - Section 9 — Mounting Dimensions
Generac ® Power Systems, Inc. 55 Section 9 — Mounting Dimensions Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Drawing No. 0D3739-A TYPE HOM TYPE HOM 120/240v 120/240v CBHOM-F CBHOM-F TYPE HOM TYPE HOM CBHOM-F CBHOM-F 120/240v 120/240v TYPE HOM TYPE HOM 120/240v 120/240v CBHOM-F CBHOM-F TYPE ...
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 - WARRANTY SCHEDULE; THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING:; GENERAC
GENERAC POWER SYSTEMS "TWO YEAR" STANDARD WARRANTY FOR GUARDIAN ® "PREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS" For a period of two years or 2000 hours of operation from the date of original sale, whichever occurs first, Generac PowerSystems, Inc. (Generac) will, at its option...
