Serial Number 2.5L 25kW Model: 005212-0 STANDBY GENERATOR OWNER'S MANUAL A new standard of reliability —CAUTION— ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS SHOULD ATTEMPT INSTALLATION! This manual should remain with the unit. 0F7922 Part 09/05 Rev. Cover018...
SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe operation be copied and posted in potential hazard areas. Safety should be stressed to all operators, potential operators, and service and repair technicians for this equipment. WARNING: The engine exhaust from this product contains chemicals known to the state...
• Before performing any maintenance on the gen- erator, disconnect its battery cables to prevent accidental start-up. Disconnect the cable from the battery post indicated by a NEGATIVE, NEG or (–) first. Reconnect that cable last. • Never use the generator or any of its parts as a step.
INTRODUCTION Thank you for purchasing this model of the standby generator set product line. Every effort was expended to make sure that the information and instructions in this manual were both accurate and current at the time the manual was written.
IDENTIFICATION RECORD DATA LABEL Every generator set has a DATA LABEL that contains important information pertinent to the generator. The data label, which can be found attached to the gen- erator’s lower connection box, lists the unit’s serial number and its rated voltage, amps, wattage capacity, phase, frequency, rpm, power factor, etc.
EQUIPMENT DESCRIPTION This equipment is a revolving field, alternating cur- rent generator set. It is powered by a gaseous fueled engine operating at 1800 rpm for 4-pole direct drive units, 3600 rpm for 2-pole direct drive units and 2300 - 3000 rpm for quiet drive gear units. See the Specifications section for exact numbers.
ENGINE PROTECTIVE DEVICES The standby generator may be required to operate for long periods of time without an operator on hand to monitor such engine conditions as coolant tempera- ture, oil pressure or rpm. For that reason, the engine has several devices designed to protect it against potentially damaging conditions by automatically shutting down the unit when the oil pressure is too low, the coolant temperature is too high, the coolant...
FUEL SYSTEM FUEL REQUIREMENTS The standby generator may be equipped with one of the following fuel systems: • Natural gas fuel system • Propane vapor (PV) fuel system The Manual Drawing Listing that is affixed to the unit includes the “Identification Code,” which may be used to identify the type of fuel system installed on the unit.
CONTROL PANEL GENERATOR CONNECTION CIRCUIT BREAKER Battery Charger Input GROUND 120 Volt + Neutral Ground Level STUB-UP AREA Concrete Slab See Install Dwg for Dimensions COLD WEATHER KIT For cold climates, optional cold weather kit (part number 0F6148) is recommended. The kit includes: •...
GENERATOR AC LEAD CONNECTIONS See “Voltage Codes”. This generator may be rated at any one of three voltages, either single-phase or three-phase. The electrical wires in the unit’s AC con- nection (lower) panel should be installed according to the number of leads and the voltage/phase required for the application.
INSTALLATION Refer to the separate “Installation Guide QT Product Line” supplied with the unit. PREPARATION BEFORE START-UP The instructions in this section assume that the standby generator has been properly installed, ser- viced, tested, adjusted and otherwise prepared for use by a competent, qualified installation contractor. Be sure to read the “Safety Rules”, as well as all other safety information in this manual, before attempting to operate this (and related) equipment.
START-UP CHECKLIST Before working on the generator, ensure the fol- lowing: • The AUTO/OFF/MANUAL switch is in the OFF position. • The 120VAC supply to the battery charger is switched OFF . PREPARATION FOR START-UP • Ensure that the 120VAC circuit breaker to the bat- tery charger is open.
GENERATOR CONTROL AND OPERATION Refer to the appropriate control panel operator’s manual for this unit. OPERATING UNIT WITH MANUAL TRANSFER SWITCH If the generator was installed in conjunction with a transfer switch capable of manual operation only, the following procedure applies. A manually operated transfer switch is one that will not provide automatic start-up and does not include an intelligence circuit.
MAINTENANCE PERFORMED BY AUTHORIZED SERVICE FACILITIES Before working on the generator, ensure the fol- lowing: • The AUTO/OFF/MANUAL switch is in the OFF position. • The 15A fuse has been removed from the con- trol box. • The 120VAC supply to the battery charger is switched OFF .
Figure 10.2 — Cylinder Head Installation COOLING SYSTEM Air intake and outlet openings in the generator com- partment must be open and unobstructed for contin- ued proper operation. This includes such obstruc- tions as high grass, weeds, brush, leaves and snow. Without sufficient cooling and ventilating air flow, the engine/generator quickly overheats, which causes it to shut down.
MAINTENANCE OWNER/ OPERATOR CAN PERFORM CHECK ENGINE OIL LEVEL Refer to “Checking Fluid Levels”. CHECK BATTERY • See “Checking Fluid Levels”. • Check battery cables for condition, tightness, cor- rosion or damage. Clean, tighten or replace as necessary. EXERCISE SYSTEM Start the generator engine at least once every seven days and let it run at least 20 minutes.
SPARK PLUGS Reset the spark plug gap or replace the spark plugs as necessary (Figure 10.4). 1. Clean the area around the base of the spark plugs to keep dirt and debris out of the engine. Clean by scraping or washing using a wire brush and commercial solvent.
Battery electrolyte fluid is an extremely corro- sive sulfuric acid solution that can cause severe burns. Do not permit fluid to contact eyes, skin, clothing, painted surfaces, etc. Wear protective goggles, protective clothing and gloves when handling a battery. If fluid is spilled, flush the affected area immediately with clear water.
SERVICE SCHEDULE The following is a recommended maintenance schedule for small standby and residential generator sets. The established intervals in the schedule are the maximum recommended when the unit is used in an average service application. They will need to be decreased (performed more frequently) if the unit is used in a severe applica- tion.
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Maintenance Level 1 Tasks Recom- mended to be done monthly 10 Hrs. 1. Disable the unit from operating per the first page warning. 2. Check the engine oil level. Adjust as necessary. 3. Check the engine coolant level. Adjust as necessary. 4.
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Maintenance Level 1 Tasks Recom- mended to be done monthly 10 Hrs. 13. Initiate an automatic start and transfer of the unit to site load and exercise it for at least 1 hour looking for leaks, loose connections or components, and abnormal operating conditions.
TROUBLESHOOTING GUIDE PROBLEM CAUSE Engine won’t crank. Engine cranks but won't start Engine starts hard, runs rough. Engine starts then shuts down. AUTO/OFF/MANUAL Switch at OFF, engine continues to run No AC output from generator. *Contact the nearest Authorized Dealer for assistance. Standby Generator Sets Troubleshooting 1.
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0F7003 (XX) ROOF C1 CPL 0F7004 (XX) CORNER POST LH SIDE C1 CPL 0F7008 (XX) DOOR REAR C1 CPL 0F7005 (XX) CORNER POST RH SIDE C1 CPL 0F7007 (XX) DOOR LH & RH SIDE C1 CPL 0F7006 (XX) DUCT FRONT DISCHARGE C1 CPL 0C2634A ASSEMBLY COVER ACCESS 0912970091...
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0F7366 MUFFLER C1 0F7647 MUFFLER SADDLE 0F8095 PIPE EXHAUST OUTLET 0F7172 PIPE EXH INLET MFLR SIDE 2.5L 0E3257 SCREW HWHTF M6-1.0 X 16 0F7382 PIPE EXH INLET MANIFLD SIDE 2.5 0C6119 BOLT U 5/16-18 X 2-1/4 036434 BOLT U 5/16-18 X 2.09 036449 SADDLE 2 INCH 022129...
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GENERAC POWER SYSTEMS STANDARD LIMITED WARRANTY FOR HOME STANDBY/LIGHT COMMERCIAL PRODUCT 45kW AND BELOW For a period of two (2) years from the date of sale, or start-up by Authorized/Certified Generac Power Systems Dealer, or branch thereof, Generac Power Systems, Inc. will, at its option, repair or replace any part(s) which, upon examination, inspection, and testing by Generac Power Systems or an Authorized/Certified Generac Power Systems Dealer, or branch thereof, is found to be defective under normal use and service, in accordance with the warranty schedule set forth below.
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