Multiquip MQP60GM, MQP20IZ, MQP40IZ, MQP45GM, MQP60IV, MQP50IZ Mechanical Installation Exhaust System

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MECHANICAL INSTALLATION — EXHAUST SYSTEM

If the engine-generator is not equipped with a factory mounted exhaust system, such as a unit mounted inside a building or room, the installation of the engine exhaust system has to be planned very carefully. When installing an exhaust system on an open or un-housed generator, consider the following recommendations:

1.After a thorough review of the exhaust installation requirements, select the engine silencer, piping and exhaust fittings based on the engine manufacturer’s maximum exhaust backpressure limits.

2.Use flexible, corrugated stainless steel exhaust tubing, 12 to 18 inches (305 - 457 mm) in length, to connect the exhaust silencer to the engine exhaust outlet. This tube or flex connector allows for thermal expansion and engine vibration.

3.Be sure to support the exhaust system (muffler, piping, etc.) to minimize the total weight applied to the engine exhaust manifold and exhaust outlet elbow or turbocharger connection.

4.Exhaust piping should conform to NFPA 37, Stationary Engines and Gas Turbines design practices, and any applicable local codes.

5.Avoid sharp bends in the exhaust piping by using sweeping, long radius elbows and provide adequate support for muffler and all associated piping.

6.Pitch a horizontal run of exhaust pipe DOWNWARD to allow moisture condensation to drain away from the engine. If an exhaust pipe must be turned UPWARD, install a condensation trap at the point where the rise begins. See Figure 15 on page 48.

7.Shield or insulate exhaust piping if there is any possibility of personal contact. Allow at least 12 inches (305 mm) of clearance where piping passes close to a combustible wall or partition.

8.Use an approved, insulated & ventilated, metal thimble where exhaust pipes pass through a combustible wall or partition.

9.Always pipe exhaust gases to the outside of any building or room. Route the engine exhaust away from any building air inlets to avoid engine exhaust fumes from entering the building fresh air intake. Some codes specify that the exhaust outlet terminate at least 10-feet (3 meters) from the property line, 3-feet (1 meter) from an exterior wall or roof, 10-feet from openings into buildings and at least 10-feet above any adjoining grade.

10.The installation of a rain cap is required for the discharge end of the exhaust system piping, if the piping is vertical. The rain cap clamps onto the end of the pipe and opens from the exhaust discharge force from the generator set while running. When the generator set is stopped, the rain cap automatically closes, protecting the exhaust system from rain, snow, etc.

11.Once the exhaust system has been installed, it is important to regularly inspect the exhaust system both visually and audibly to see that the entire system remains sealed against leakage and safe for operation.

DO NOT use flexible tubing to form bends or to compensate for misaligned piping.

„Reduce corrosion from condensation by installing the muffler as close as practical to the engine.

„Support mufflers and piping by non-combustible hangers or supports. DO NOT use the engine exhaust outlet for support. Weight on the engine exhaust outlet can cause damage to the engine exhaust manifold or reduce the life of a turbocharger.

„Schedule 40 black iron pipe is recommended for exhaust piping.

„Pipe bend radius should be as long as practical.

„NEVER use exhaust tubing and piping of smaller diameter than the exhaust outlet. Verify the back pressure limitation of the engine, and use exhaust tubing and piping of the appropriate size throughout the exhaust system.

„DO NOT use piping that is larger than necessary to avoid corrosion from condensation. Doing so also reduces the exhaust gas velocity available for dispersing the exhaust gases up and away in the outdoor wind stream.

„Keep exhaust pipe diameter changes to a minimum to avoid friction and performance loss.

„A genset should not be connected to an exhaust system servicing other equipment, including other gensets. Soot, corrosive condensation, and high exhaust gas temperatures can damage idle equipment served by a common exhaust system.

INDUSTRIAL GENERATOR SETS — APPLICATION & INSTALLATION MANUAL — REV. #4 (09/07/07) — PAGE 47

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Contents Application & Installation Manual MQ PowerPage Heres HOW to GET Help Table of Contents Page Foryour Safety and the Safety of Others Safety Message Alert SymbolsAccidental Starting Safety Message Alert SymbolsGeneral Safety Important Safety InstructionsGeneral Safety Radiator Important Safety InstructionsAlways know the location of the nearest fire extinguisher Operation SafetyMaintenance Safety EmergenciesBattery Safety Genset should be inspected regularly for fire hazards Fire ProtectionAlways drain fuel prior to lifting Lifting the Generator SetAbout This Manual Always remember Safety FIRST!!! Safety involves twoIntroduction IntroductionApplication Application and InstallationInstallation OverviewOutdoor Locations Installation OverviewCold Climates and Derating Factors LocationGenerator Set Sizing Calculations „ Static Uninterrupted Power Supplies UPSGenset Sizing Procedure Genset SizingStep Sequence Guidelines 765.7 Repeat steps a and b as necessary through all the worksheets Running load should not be Generator Set Sizing Calculations Select a Generator SetEstablish the minimum size required Single-Phase Induction Motor Genset Sizing Determining Load CharacteristicsDetermining Load Characteristics Lighting Calculate SkVA as follows Genset Sizing Determining Load CharacteristicsThree-Phase Induction Motors 100 Determining Load CharacteristicsCalculate SkW as follows Full SkVA201 Three Phase Nema Motor Code TableEquation above Output kVA is the nameplate kVA capacity Synchronous MotorsVariable Frequency Drives Static UPSNoise Zones Peak Day Noise ConsiderationRadiator discharge air high frequency sound Noise Laws and RegulationsEnvironmental Considerations dBA Comparison Chart dBABelow estimates the noise level from multiple noise sources Adding Additional Sound SourcesDistance Effects on dBA Effects of DistanceFollowing will help reduce airborne noise Reducing NoiseFollowing will help reduce structure-borne noise See on page 32 for typical measures in reducing noiseReducing Noise Acoustic MaterialMounting on a Sub-Base Fuel Tank Access to SetMounting Mounting on a Slab FloorMounting Foundation Mounting FoundationVibration Isolators Mountingthe Generator SETGeneral Information Mounting Vibration Isolators Installation and Adjustment ProcedureSupply Tank Mechanical Installation Fuel System DieselFuel System Installation Diesel FuelMechanical Installation Fuel System Diesel Minimum Fuel Supply / Return Hose and Pipe Sizes Diesel Fuel SupplyMechanical Installation Fuel System Gaseous Fuels Gaseous Fuel Supply Mechanical Installation Fuel System Gaseous FuelsContaminants Natural GAS Schedule 40 Iron Pipe Sizing Pipe and Tube SizingTypical Pipe Schematic for Propane Vapor Distribution Liquid Propane Schedule 40 Iron Pipe Sizing Mechanical Installation Fuel SystemAdditional references include Fuel Storage RegulationsEnvironmental Protection Field Installing a Generator Exhaust System Mechanical Installation Exhaust SystemExhaust System Installation Mechanical Installation Exhaust System Condensation Trap Factory Recommended Engine Exhaust Silencers Exhaust System Installation Reference DataHow BatteriesWork Mechanical Installation Battery SystemPurpose of the Battery MQ Power BatteriesEngine Starting System Mechanical Installation Battery System„ See the Battery Safety Instructions on Preparation of Dry Charged Charged and Moist Batteries Mechanical Installation NEW BatteryNew Battery Installation Preparation of Charged and Wet BatteriesCharged and Moist Batteries Activation Mechanical Installation NEW BatteryRemoving Old Battery Dry Charged BatteriesStep Three 3 Load Procedure Battery System -TESTING BatteryBatteryTesting Step One 1 -Visual Inspection See Flow Chart, on nextBattery Testing Chart Battery System Batterytesting ChartCharging LowWater-loss Batteries Battery System Charging BatteryBattery Storage Battery System Battery Charger FC1224-10-2011U Battery Charger Battery System Battery ChargerFC & FCA Battery Charger LC1224-500-2 Battery ChargerBattery Charger Safety Battery System Battery Charger SafetyBattery Charger Installation Vents and Ducts Mechanical Installation -VENTILATION and CoolingEngine Cooling Ventilation and CoolingLouvers Mechanical Installation -VENTILATION and CoolingFactory Mounted RadiatorVentilation Mechanical Installation Mounted Radiator CoolingRadiator Set Requirements Mechanical Installation Mounted Radiator CoolingMounted Radiator Cooling System Remote Radiator Cooling optional Mechanical Installation Remote Radiator CoolingRemote Radiator Cooling Mechanical Installation Remote Radiator CoolingHot Well Installation Mechanical Installation Hotwell Cooling19,200/60x8 = 40 gpm Mechanical Installation Heat Exchanger CoolingHeat Exchanger Coolant Heaters Coolant TreatmentCoolantTreatment Electrical Installation DC Controlwiring „ Control Box Back Panel Components DC Control Wiring Control BOX Back PanelControl Box Control box contains the following „ Digital Control ModuleL3 3 PH DC Controlwiring Control BOX Back PanelGenerator Set Wire Diagram AC Electrical Connections Transfer SwitchConnection Of Generator Leads For Correct Voltage Output AC Electrical ConnectionsLine circuit breaker Electrical TerminationsMounted fuel tank is used, the electrical stub-up BreakerAC Electrical Connections System Grounding Pole ATS AC Electrical Connections System GroundingEquipment Grounding AC Electrical Connections Equipment GroundingElectrical Distribution System Electrical Distribution SystemPRE-START Preparation Run the Generator Set PRE-START PreparationAppendix Installation Checklist Appendix MAIN-LINE Circuit Breaker For MQ Power Industrial GeneratorsAppendix MAIN-LINE Circuit Breaker MQ Power Industrial Generator Specifications Appendix Generator SpecificationsAppendix Generator Specifications MQ Power Industrial Generator Specifications Appendix Engine Specifications MQP175IV MQP200IV MQP250IV Appendix Engine SpecificationsGenerator Model MQP300IV MQP350IV MQP400IV Generator Model MQP30GM MQP45GM MQP60GM MQP80GM MQP100GM Appendix Engine SpecificationsMQ Power Generator Dimensions & Weights Appendix Dimensions and WeightsMQ Power Generator Dimensions & Weights Appendix Dimensions AndweightsHeres HOW to GET Help