Generac 004373-1, 004626-0 Battery Installation, Preparation Before START-UP, Vented Batteries

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Section 2 — Installation

Guardian Liquid-cooled 40 kW Generator

2.7 BATTERY INSTALLATION

Standby generators installed with automatic trans- ! fer switches will crank and start automatically

when normal (utility) source voltage is removed or is below an acceptable preset level. To prevent such automatic start-up and possible injury to per- sonnel, do not connect battery cables until the normal source voltage at the transfer switch is cor- rect and the system is ready to be placed into operation.

Storage batteries give off explosive hydrogen gas. This gas can form an explosive mixture around the battery for several hours after charging. The slightest spark can ignite the gas and cause an explosion. Such an explosion can shatter the bat- tery and cause blindness or other injury. Any area that houses a storage battery must be properly ventilated. Do not allow smoking, open flame, sparks or any spark producing tools or equipment near the battery.

Battery electrolyte fluid is an extremely caustic ! 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.

Do not dispose of the battery in a fire. The battery is capable of exploding.

Do not open or mutilate the battery. Released ! electrolyte can be toxic and harmful to the skin

and eyes.

Where electrolyte contacts the eyes, flush thoroughly and immediately with water and seek medical atten- tion, and

Spilled electrolyte is to be washed down with an acid- neutralizing agent. A common practice is to use a solution of one pound (500 grams) bicarbonate of soda to one gallon (4 liters) of water. The bicarbonate of soda solution is to be added until the evidence of reaction (foaming) has ceased. The resulting liquid is to be flushed with water and the area dried.

Lead acid batteries present a risk of fire because they generate hydrogen gas. The following proce- dures are to be followed:

DO NOT SMOKE when near batteries,

DO NOT cause flame or spark in battery area, and

Discharge static electricity from body before touching batteries by first touching a grounded metal surface.

Servicing of batteries is to be performed or supervised by personnel knowledgeable of batteries and the required precautions. Keep unauthorized personnel away from batteries.

For recommended batteries, see “Battery Maintenance” page 16. All batteries must be at 100 percent state-of- charge before they are installed on the generator.

When using maintenance-free batteries, it is not neces- sary to check the specific gravity or electrolyte level. Have these procedures performed at the intervals spec- ified in Section 4, “Maintenance.” A negative ground sys- tem is used. Battery connections are shown on the wiring diagrams. Make sure all batteries are correctly connected and terminals are tight. Observe battery polarity when connecting batteries to the generator set.

Note:

Damage will result if the battery connections are reversed.

The battery represents a risk of high short circuit current. When working on the battery, always remove watches, rings or other metal objects, and only use tools that have insulated handles.

2.7.1 VENTED BATTERIES

The electrolyte is a dilute sulfuric acid that is

!harmful to the skin and eyes. It is electrically con- ductive and corrosive. The following procedures are to be observed:

Wear full eye protection and protective clothing,

Where electrolyte contacts the skin, wash it off immediately with water,

2.8 PREPARATION BEFORE START-UP

The instructions in this section assume that the standby generator has been properly installed, serviced, tested, adjusted and otherwise prepared for use by a competent, qualified installation contractor. Be sure to read the “Safety Rules” on Pages 2 and 3, as well as all other safe- ty information in this manual, before attempting to oper- ate this (and related) equipment.

10 Generac® Power Systems, Inc.

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Contents Power SYSTEMS, INC Introduction Authorized Dealer LocationSafety Rules General Information InstallationMaintenance Section Installation Drawings 56-57 Warranty Back CoverGeneral Hazards Electrical Hazards UNPACKING/INSPECTION GeneratorGenerator AC Connection Systems Automatic System OperationSpecifications Main Circuit BreakerEngine Protective Devices Fuel Requirements Recommendations Generator and Load CompatibilityEngine Conversion to LP GAS VaporCoolant Emissions Control SystemAIR Fuel Ratio Controller Standby Generator Installation Basic Standby Electric SystemNfpa Standards Other Published StandardsTransfer Switch Start Signal Connections GTS Type SwitchPre-Packaged Type Switch Emergency Circuit Isolation MethodBattery Installation Preparation Before START-UPVented Batteries Prior to Initial START-UP Using the AUTO/OFF/MANUAL Switch OFF Position Manual PositionAutomatic Transfer Operation Sequence of Automatic OperationWeekly Exercise Cycle Checking the Engine OIL LevelOil and Filter Change Procedure Changing the Engine AIR CleanerChanging the Engine OIL and Filter Engine Oil RecommendationsBattery Maintenance Spark PlugsMiscellaneous Maintenance Cleaning the GeneratorOverload Protection for Engine DC Electrical System DC FuseOUT of Service Procedure Removal From ServiceReturn To Service Service Schedule SYSTEM/COMPONENT Procedure FrequencyTroubleshooting Guide Problem Cause CorrectionElectrical Data Section Power Systems, Inc Generac Power Systems, Inc Electrical Data Electrical Data Electrical Data Wiring Diagram RED Brush Units DPEPanel Face Switch Rocker Dpst 125V SPD Switch TOG Dpdt 15/10 SPSwitch Selector 6A AMP/V Part of Control Panel Wire HarnessGenerators CONTROLLER, B-C #DPG-2103 ScreenCover Plate AVR Cover Plate EgovAssembly Motor Stepper Connector Interface AssemblyHousing Governor Connect Cover Conn HousingBASE, Mounting ASSEMBLY, 4.3L Assembly Groundwire 10/3/8Plug Button 3 DIA DIRECT-COUPLED4640 31 33 Switch OIL Pressure DC Alternator AssemblyEngine 4.3L GM Pulley TensionerExploded Views and Parts Lists Retainer Plug Wires Retainer Spark Plug WiresWires Spark Plug 4.3L Connector C/C VentAdd item #42 vinyl trim as shown FAN Assembly 390 SAE DD Assembly Brush & ShuntAssembly Scroll 390 SAE Carrier Rear BearingAssembly Cover Access Duct BottomShakeproof INT M6 SS Duct Front PanelTank Coolant Recovery Bracket Coolant Recovery TankRadiator 14 FIN/INCH Venturi 16 DIA 35KWPlate AIR Cleanr Bottom Plate AIR Cleaner TOPGasket AIR Cleaner Gasket Carburetor AdaptorMixer only Natural GAS NPT XHose 1 in ID LP GAS Actuator Throttle 42MMSupport Solenoid NAT GAS Nipple TOE 3/4 NPT XNipple Pipe 3/4NPTX4.5 BLK IRN Hose 1IN ID LP GASRegulator N/G R600S LUG Rngtng INSDECAL,INLET Pressure Hose Connection TEE HEATER, Engine 1800WHEATER, Engine 2000W HOSE, Preformed Block HeaterBattery 12VDC 90-AH 27F Optional Hold Down BatteryCable Battery Black #1 X Cable Battery RED #1 X11 12 Cover Lower Connection BOX Bushing Snap SB-2.5-31Relay Solenoid 12VDC PNL MNT Transformer 200A to 5A 5VAExploded Views and Parts Lists Tube Straight a Group Muffler Catalyst 4.3LMounting Band A-GRP Catalyst Shield Heat Crossover 4.3LMuffler 2-1/2 INLET/OUTLET Clamp Band MufflerGuardian Liquid-cooled 40 kW Generators Installation Drawings 12V Battery see Note Lifting EYE Places Warranty Schedule This Warranty Shall not Apply to the Following