Installation and Owner’s Manual - PM Tech

1 GENERACPOWER SYSTEMS, andOwner s ManualAir-cooled, PrepackagedAutomatic Standby GeneratorsModels:04389-3 (6 kW NG, 7 kW LP)04456-3 (12 kW NG, 12 kW LP)04390-3 (13 kW NG, 15 kW LP)DEADLY EXHAUST FUMES. OUTDOOR Installation ONLY!!DANGERNot intended for use as Primary Power in place of utility or inlife-support applications.!!LISTEDCUSG enerac Power Systems, 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 utility power unit is factory installed in an all-weather, metal enclo-sure that is intended exclusively for outdoor generator will operate using either vapor withdrawnliquid propane (LP) or natural gas (NG).READ THIS Manual THOROUGHLYIf any portion of this Manual is not understood, contactthe nearest guardian Authorized Dealer for starting,operating and servicing this publication, and on tags and decals affixed to the generator, DANGER, WARNING,CAUTION and NOTE blocks are used to alert per-sonnel to special instructions about a particularoperation that may be hazardous if performed incor-rectly or carelessly.

2 Observe them carefully. Their def-initions are as follows:After this heading, read instructions that, if notstrictly complied with, will result in serious person-al injury, including death, in addition to this heading, read instructions that, if notstrictly complied with, may result in serious person-al injury or property this heading, read instructions that, if notstrictly complied with, could result in damage toequipment and/or :After this heading, read explanatory statementsthat require special safety warnings cannot eliminate the hazardsthat they indicate. Common sense and strict com-pliance with the special instructions while perform-ing the service are essential to preventing commonly used safety symbols accompany theDANGER, WARNING and CAUTION blocks. The typeof information each indicates follows:This symbol points out important safety infor-mation that, if not followed, could endangerpersonal safety and/or property of symbol points out potential explosion symbol points out potential fire symbol points out potential electricalshock operator is responsible for proper and safe use of the equipment.

3 Generac strongly recommends thatthe operator read this owner 's Manualand thor-oughly understand all instructions before using thisequipment. Generac also strongly recommendsinstructing other users to properly start and operatethe unit. This prepares them if they need to operatethe equipment in an Manual contains pertinent owner s information,including warranty, electrical diagrams, explodedviews and lists of repair parts, for three differentGuardian models: 04389-3 6 kW NG, 7 kW LP, single-cylinder GH-410 engine 04456-3 12 kW NG, 12 kW LP, V-twin GT-990 engine 04390-3 13 kW NG, 15 kW LP, V-twin GT-990 EngineOPERATION AND MAINTENANCEIt is the operator's responsibility to perform all safe-ty checks, to make sure that all maintenance for safeoperation is performed promptly, and to have theequipment checked periodically by a GuardianAuthorized Dealer. Normal maintenance service andreplacement of parts are the responsibility of theowner/operator and, as such, are not considereddefects in materials or workmanship within theterms of the warranty.

4 Individual operating habitsand usage contribute to the need for maintenance and care of the generatorensures a minimum number of problems and keepoperating expenses at a minimum. See a GuardianAuthorized Dealer for service aids and TO OBTAIN SERVICEWhen the generator requires servicing or repairs,contact a guardian Authorized Dealer for technicians are factory-trained and are capa-ble of handling all service contacting a guardian Authorized Dealer aboutparts and service, always supply the complete modelnumber and serial number of the unit as given on itsdata decal, which is located on the generator. SeeFigure or Figure in Section for decal No. _____ Serial No. _____ !DANGER AUTHORIZEDDEALER LOCATIONTo locate the nearest guardian AUTHORIZEDDEALER, please call this number:1-800-333-1322 DEALER LOCATION INFORMATION CAN BE OBTAINED AT THIS NUMBER or of ContentsGuardian Air-cooled 7 kW, 12 kW and 15 kW GeneratorsGenerac Power Systems.

5 Inside Front CoverRead This Manual Thoroughly ..IFCC ontents ..IFCO peration and Maintenance ..IFCHow to Obtain Service ..IFCA uthorized Dealer Locator Number ..IFCS afety Rules ..2 Standards Index ..3 Section 1 General Information .. Unpacking/Inspection .. Protection Systems .. NEC Requirement for Arc Fault CircuitInterruption Breaker for Bedrooms .. The Generator .. Specifications .. System Set LED .. Fuel Requirements and Fuel Consumption .. Reconfiguring the Fuel System .. Location .. Battery Installation .. The Battery ..9 Section 2 Post Installation Start-upand Adjustments .. Before Initial Startup .. Check Transfer Switch Electrical Checks .. Generator Tests Under Load .. Checking Automatic Operation .. Adjusting the Regulator (Natural Gas Only).. engine Governor Adjustment .. Voltage Regulator Adjustment ..14 Section 3 Operation .. Break-in Using the Auto/Off/ Manual Switch.

6 Automatic Transfer Operation .. Sequence of Automatic Manual Transfer Operation .. Setting the Exercise Timer .. Protection Systems ..17 Section 4 Maintenance .. Fuses .. Checking the engine Oil Level .. Changing the engine Oil .. Changing the Oil Filter .. Changing the engine Air Cleaner .. Spark Plug(s) .. Battery Maintenance .. Adjusting GH-410/GT-990/760 Valve Cooling System .. Attention After Submersion .. Corrosion Protection .. Out of Service Procedure .. Service Schedule ..23 Section 5 Troubleshooting .. Troubleshooting Guide ..24 Section 6 Notes ..25 Section 7 Electrical Data ..28 Section 8 Exploded Views andParts 9 Mounting 10 Warranty ..642 Generac Power Systems, these SAFETY RULES carefully beforeinstalling, operating or servicing this familiar with this owner s Manualand withthe unit. The generator can operate safely, efficientlyand reliably only if it is properly installed, operatedand maintained.

7 Many accidents are caused by failingto follow simple and fundamental rules or cannot anticipate every possible circum-stance that might involve a hazard. The warnings inthis Manual , and on tags and decals affixed to theunit are, therefore, not all-inclusive. If using a proce-dure, work method or operating technique Generacdoes not specifically recommend, ensure that it issafe for others. Also make sure the procedure, workmethod or operating technique chosen does not ren-der the generator the safe design of this generator, operating this equipment imprudently, neglectingits maintenance or being careless can cause possible injury or death. Permit only responsibleand capable persons to operate or maintain lethal voltages are generated bythese machines. Ensure all steps are taken torender the machine safe before attempting towork on the of the generator are rotating and/or hotduring operation. Exercise care near runninggenerators. GENERAL HAZARDS For safety reasons, Generac recommends that theinstallation, initial start-up and maintenance ofthis equipment is carried out by an AuthorizedGuardian Dealer.

8 The engine exhaust fumes contain carbon monox-ide, which can be DEADLY. This dangerous gas, ifbreathed in sufficient concentrations, can causeunconsciousness or even death. This exhaust sys-tem must be installed properly, in strict compli-ance with applicable codes and Installation , do nothing that might ren-der the system unsafe or in noncompliance withsuch codes and standards. Keep hands, feet, clothing, etc., away from drivebelts, fans, and other moving or hot parts. Neverremove any drive belt or fan guard while the unit isoperating. Adequate, unobstructed flow of cooling and venti-lating air is critical to correct generator not alter the Installation or permit even partialblockage of ventilation provisions, as this can seri-ously affect safe operation of the generator. Thegenerator MUST be installed outdoors. When working on this equipment, remain alert atall times. Never work on the equipment whenphysically or mentally fatigued.

9 Inspect the generator regularly, and contact thenearest guardian Authorized Dealer for partsneeding repair or replacement. Before performing any maintenance on the genera-tor, disconnect its battery cables to prevent acci-dental start up. Disconnect the cable from the bat-tery post indicated by a NEGATIVE, NEG or ( )first. Reconnect that cable last. Never use the generator or any of its parts as astep. Stepping on the unit can stress and breakparts, and may result in dangerous operating con-ditions from leaking exhaust gases, fuel leakage,oil leakage, etc.!!!!DANGERIMPORTANT SAFETY INSTRUCTIONSG uardian Air-cooled 7 kW, 12 kW and 15 kW GeneratorsSAVE 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 toall operators and potential operators of this equipment.!!The engine exhaust from this productcontains chemicals known to the stateof California to cause cancer, birthdefects or other reproductive :!

10 !This product contains or emits chemicalsknown to the state of California to causecancer, birth defects or other reproductive :!!Generac Power Systems, HAZARDS All generators covered by this Manual producedangerous 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-tion. Avoid contact with bare wires, terminals, con-nections, etc., while the unit is running. Ensure allappropriate covers, guards and barriers are inplace before operating the generator. If work mustbe done around an operating unit, stand on aninsulated, dry surface to reduce shock hazard. Do not handle any kind of electrical device whilestanding in water, while barefoot, or while handsor feet are wet. DANGEROUS ELECTRICALSHOCK MAY RESULT. The National Electrical Code (NEC) requires theframe and external electrically conductive parts ofthe generator to be connected to an approved earthground.