MTU Fluids and Lubricants Specifications for Series 4000 Gas

Fluids and LubricantsSpecifications MTU Fluids and Lubricants Specifications for Series 4000 Gas

A001067/00E

© 2015 MTU Onsite Energy GmbH, Augsburg

The original document was created in the German language.

This publication including all of its parts is protected by copyright. Each instance of use requires the prior written con-sent of MTU Onsite Energy GmbH. This applies in particular to duplication, dissemination, editing, translation, microfilm-ing, and storage and/or processing in electronic systems, including databases and online services.

All of the information presented in this publication was current and up-to-date at the time of publishing. MTU OnsiteEnergy GmbH reserves the right to make changes to, delete, or supplement the provided information and data as need-ed.

Table of Contents1 Confirmation for Fluids and Lubricants

1.1 Confirmation by the operator 4

2 Preface

2.1 General information 5

3 Liquid Fuels

3.1 General information 73.2 Natural gas 103.3 Biogas 13

4 Inlet Air and Combustion Air


5 Coolants

5.1 General information 195.2 Requirements imposed on engine coolant 205.3 Requirements imposed on mixture coolant 215.4 Requirements for the quality of water for

the gas sequential heater 225.5 Requirements for the quality of water for

the gas cooler and gas sequential heater 235.6 Treatment with corrosion inhibitor /

antifreeze 245.7 Approved corrosion inhibitors / antifreezes 25

6 Heating Water


6.2 Requirements imposed on heating water upto 100 °C 30

6.3 Requirements imposed on heating waterabove 100 °C 31

7 Lubricating Oil

7.1 General information 327.2 Approved lubricating oils 337.3 Lubricating oil change intervals 34

8 Transmission oils


9 Exhaust Condensate


10 Appendix A

10.1 Abbreviations 3810.2 Conversion table of SI units 3910.3 MTU Onsite Energy contact person / service

partner 40

11 Appendix B

11.1 Index 41

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1 Confirmation for Fluids and Lubricants

1.1 Confirmation by the operatorThe plant must not be commissioned without this confirmation.

Plant description:

Plant consisting of:

Factory / SAP no.:

Customer:

Operator:

MTU Project Manager:

We hereby confirm that the quality of the fluids and lubricants (coolant, gas, lubricating oil, heating wa-ter, etc., where applicable) conforms to the Fluids and Lubricants Specifications of MTU Onsite Energy.

MTU Onsite Energy does not provide any warranty for damage incurred as a result of deviating fluid andlubricant quality.

City / date

Legally binding signature (customer)

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2 Preface

2.1 General information

Used symbols and means of representation

The following instructions are highlighted in the text and must be observed:

This symbol indicates instructions, tasks, and activities that must be complied with to avoiddanger for personnel, as well as damage or destruction of the material.

Note:A note indicates whether special attention is required when executing a task.

Fluids and lubricantsThe service life, operational reliability and function of the drive systems are largely dependent on thefluids and lubricants employed. The correct selection and treatment of these fluids and lubricants aretherefore extremely important. This publication specifies which fluids and lubricants are to be used.

Test standard DesignationDIN Federal German Standards InstituteEN European StandardsISO International Standards OrganizationASTM American Society for Testing and MaterialsIP Institute of PetroleumDVGW Deutsche Vereinigung des Gas- und Wasserfaches e.V.

Table 1: Test standards for fluids and lubricants

Approved fluids and lubricants may not be mixed.

The customer must comply with the instructions specified in the safety data sheets of the re-spective manufacturers.

Applicability of this publicationThe Fluids and Lubricants Specifications will be amended or supplemented as necessary. Before usingthem, make sure you have the latest version. The latest version is also available at:

http://www.mtu-online.com/mtu/mtu-valuecare/mtu-valueservice-Technische-Dokumentation

If you have further queries, please contact your MTU representative.

WarrantyUse of the approved fluids and lubricants, either under the brand name or in accordance with the speci-fications given in this publication, constitutes part of the warranty conditions.

The supplier of the fluids and lubricants is responsible for the worldwide standard quality of the namedproducts.

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Fluids and lubricants for drive plants may be hazardous materials. Certain regulations must beobeyed when handling, storing and disposing of these substances.

These regulations are contained in the manufacturers' instructions, legal requirements and technicalguidelines valid in the individual countries. Since there can be major differences from country to coun-try, it is not possible to provide a universally applicable statement on the rules to be observed withinthe framework of these Fluids and Lubricants Specification.

Users of the products named in these specifications are therefore obliged to inform themselves of thelocally valid regulations. MTU accepts no liability whatsoever for improper or illegal use of the fluids andlubricants that it approves.

When handling fluids and lubricants the "Rules for the protection of the environment (see Safety Regula-tions, Disassembly and Disposal)" are to be adhered to, since they are hazardous to health and flamma-ble.

Incorrect use of fluids and lubricants causes environmental pollution.

• Fluids and lubricants must not enter the ground or the sewerage system.• Used fluids and lubricants must be disposed of through used oil recycling or hazardous waste dispos-

al.• Used filter elements and cartridges must be disposed of with hazardous waste.

The customer / operator bears the responsibility for adhering to the fuel values.

PreservationAll information concerning corrosion protection, reapplication of corrosion inhibitors and removal ofcorrosion inhibitors, including the approved corrosion inhibitors is provided in the MTU Corrosion Inhibi-tor and Subsequent Application of Corrosion inhibitor Guidelines. The latest version is also available at:

http://www.mtu-online.com/mtu/mtu-valuecare/mtu-valueservice-Technische-Dokumentation

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3 Liquid Fuels

3.1 General informationCAUTION

Moisture in the fuel / air mixtureDamage / destruction of the catalytic converter / destruction of the gas train• It must be ensured that the limit values of the moisture in the fuel as well as the intake air are

not exceeded at any time!

CAUTIONHarmful substances / contamination in the fuelLong-term damage due to corrosion• It must be ensured that no corrosive compounds (e.g. siloxane, phosphor, arsenic, heavy metal,

sulfur, ammonia, chlorine, fluorine, bromine, iodine compounds) enter the fuel lines. Or their lim-it values must not be exceeded. Exceeding the limit values voids the warranty.

CAUTIONHarmful substances / contamination in the intake airLong-term damage due to corrosion• It must be ensured that no corrosive compounds (e.g. siloxane, phosphor, arsenic, heavy metal,

sulfur, ammonia, chlorine, fluorine, bromine, iodine compounds) enter the intake air. Or theirlimit values must not be exceeded. Exceeding the limit values voids the warranty.

CAUTIONHarmful substances / contamination in the exhaust gasLong-term damage due to corrosion• It must be ensured that no metal such as iron, nickel, chromium, copper, zinc and tin enters the

exhaust gas system / catalytic converter. If the cumulative quantity of these metals togetherwith the heavy metals exceeds the total limit value of 350 g/m3 of the catalytic converter spacevolume, this voids the warranty of the catalytic converter.

CAUTIONExceeding the temperature in the exhaust gas systemDamage / destruction of the catalytic converter• It must be ensured that the maximum operating temperature of 600 °C is not exceeded. Ex-

ceeding the limit values voids the warranty.

It is essential to make sure - at the latest prior to commissioning - by consulting the relevant gas supplycompany that the minimum methane number specified in the respective data sheet and the calorificvalue range are observed. It is also necessary here to inquire about the temporary admixture of butane-or propane-air mixtures.

The fuel must be technically free of mist, dust and liquid. Condensation in the gas system is to be pre-vented by suitable measures (dehumidification, protection against cooling down, heating, etc.). Corro-sive constituents may only be present in the concentrations set out below.

Silicone compounds in the gas lead to deposits and promote wear. Even catalytic converters are deacti-vated by these compounds. Damage caused by silicon compounds is not covered by the warranty.

If the quality of the raw gas exceeds the sulfur limit values, a gas desulferization system that is de-signed for the quality of the gas must be installed.

If these limit values are exceeded in operation, for exhaust heat use a stronger formation of corrosivedeposits occurs. This requires an earlier cleaning of the exhaust gas heat exchanger.

With the non-stainless steel formaldehyde-optimized MTU special oxidizing catalytic converter, opera-tion without fine desulfurization is admissible when adhering to the specified sulfur components in thefuel.

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Since in practice the sulfur content varies greatly MTU cannot provide guarantees with regard to thecleaning intervals.

During operation with the oxidizing catalytic converter without exhaust heat utilization the exhaust gastemperature at the exhaust system opening must be safely above 300 °C. If necessary, the exhaustpipe must be insulated.

Silicon content in fuel gas

MTU Onsite Energy excludes silicon-related engine and catalytic converter damage from thewarranty.

For operation with gases that contain silicon you must pay explicit attention to the silicon content in theoil. For this the silicon operating value SiB must be calculated using the formula cited. The limit value forthis is 0.01. If this limit value is exceeded, the engine will be operated outside of the fuel guideline,which voids the warranty. More detailed information is provided in the chapter Fuels (natural gas / bio-gas), fuels for gas engines.

Compliance with the SiB must be seamlessly verified by the operator's analyses.

SiB = Delta Si oil analysis B - A [ppm] x(Oil fill quantity + top-up quantity) [liters]

generated electrical work [kWh]

Table 2: Formula for calculating the silicon content SiB

Example:

Delta Si between oil analysis A and B 20 ppm (mg/kg)Oil fill quantity in circulation 800 dm3

Topped up oil quantity 200 dm3

Generated electrical work between oil analysis A and B 2000000 kWh

Table 3: Data for the example

20 [ppm] x(800 + 200) [dm3]

=0.012000000 [kWh]

Table 4: Example for calculating the silicon operating value SiB

At the silicon limit values SiBG a distinction is made between operation with or without catalytic exhaustcleaning.

SiBG

With catalytic exhaust gas cleaning 0Without catalytic exhaust gas cleaning <0.01

Table 5: Silicon operating limit values SiBG for for different operating modes.

Silicon operating limit values SiBG for for different operating modes.

Experience has shown that for the required use of oxidation catalytic converters, the impossibility ofverification must be requested (Si B = 0).

Nevertheless, due to the high sensitivity of the catalytic converter, premature activity loss can occur,particularly at formaldehyde conversion.

In this case the findings of the manufacturer of the catalytic converter are authoritative.

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Determination of the silicon proportion in the fuel gas from the gas analysisThe measured concentrations of the individual compounds are multiplied by the Si mass fractions andthe atomic silicon content is determined.

The result is based on the calorific value of the fuel gas and standardized at 10 kWh energy content(equals 1 m3 NTP. CH4).

Concentration of silicon atoms in sewer gas K Si 5.1 mg/m3 NTPCH4 content of the sewer gas K CH4 65 %

Calorific value – sewer gas Hu 6.5 kWh/m3 NTP

Table 6: Calculation of the silicon proportion in the fuel gas from the gas analysis

Example:

KSi10 kWh =

K Si (mg/m3NTP) x10 (kWh/m3NTP)

Hu (kWh/m3NTP)

Hu (kWh/m3NTP) x10 (kWh/m3NTP)

Hu (kWh/m3NTP)

KSi10 kWh =K Si (mg/m3NTP) x

10 (kWh/m3NTP)

Hu (kWh/m3NTP)

10 kWh/m3NTP

KSi10 kWh =5.1 (mg/m3NTP) x

10

6.5

10 kWh/m3NTP

KSi10 kWh =7.8 mg

10 kWh

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3.2 Natural gasGas engines must be operated exclusively with gases which have been specifically approved for thetype of gas engine in use. The suitability for use of approved gas types must be checked regularly, how-ever at least every six months, by means of a gas analysis in order to detect changes in the gas compo-sition and changes to harmful components in the gas and to take appropriate action. In the entire appli-cation and operating range of the engine, the use of fuels is restricted to purely gaseous fuels. Liquidfuels are not admissible nor are they provided for.

Components that may be used for gas engines are listed in the following tables. Generally valid limitsfor the main components are specified in the table. Examples of typical natural gas compositions areshown. The listed components are relevant to gas engines. Components other than those listed are notadmissible for gas engines. They provide an approximate value for the commonly used gas composi-tions. Limit values for the individual components, unless they are explicitly restricted, are based on thegeneral requirements of freedom from fluid elements, the exclusion of condensate and hydrocarbonsand the global parameters of gas mixing .

Name Components Unit Value range

Natural gas CO % by vol. < 2 CO2 % by vol. < 10

CH4 % by vol. 80 - 100

C2H6 % by vol. < 12

C3H8 % by vol. < 9

C4H10 % by vol. < 1

N2 % by vol. < 20

O2 % by vol. < 3

Table 7: Main ingredients of natural gases

Requirements for gaseous fuel

Designation Unit Limit value CommentType of gas Natural gas Applies to natural gas H and L, and

coal-bed methane from from untap-ped deposits (pre-mining coal-bedmethane) other gases are currentlynot approved

Methane numberchange

-/min. 5 linear constant change with a fre-quency of maximum 1/h

Calorific power Hu kWh/m³ NTP 8.0 < Hu < 11,0 Consultation with manufacturer re-quired in case of lower and highervalues.

Calorific value devi-ation from the set-ting value

% ± 5 Consultation with manufacturer re-quired for higher values

Permissible changespeed of calorificvalue in relation tosetting value

%/min. 1.0 linear constant change necessarywith a frequency of maximum 1/h

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Designation Unit Limit value CommentDensity of gas kg/m³ NTP 0.73 - 0.84 The density of the gas can fluctuate

in accordance with the composition;it is constant for a certain type ofgas. When using gas from differentgas supply areas, the density mayvary.When changing to a different gas sup-plier it may be necessary to adjustthe mixture control.

Gas pressure devi-ation from the set-ting value

% ± 5

Permissible changespeed of gas pres-sure

mbar/min. 1 Constant change required

Gas temperatureNatural gas fromthe public gas sup-ply grid Natural gas fromLNG evaporatorplants

°C 5 < T < 45 15 < T < 45

If there is a danger of underrangingthe dew point, the gas temperaturemust be increased. If there are devi-ating temperatures, there is dangerof thermal aging of NBR materials(seals, diaphragms) and the effects ofchanges in elasticity. Prevailing pres-sure and calorific combinations canrestrict the T-range, this can be com-pensated via a pressure adjustment,so that operation at rated load is en-sured for the entire T-range.On plants with LNG operation, thepermissible temperature range mustbe coordinated project-specifically.The gas evaporation system designmust be analyzed on the part of MTUfor this purpose.

Gas temperaturedeviation from thesetting value

°C ± 9

Permissible changespeed of gas tem-perature

K/min. 0.3

Relative moisturein gas in the per-missible tempera-ture and pressurerangemax. relative mois-ture in gas, abso-lute

% g/kg

< 80 < 20

In the entire gas and mixture systemno condensation is permitted. No wa-ter vapor condensation in pressureand temperature range. No conden-sation permitted in lines and contain-ers carrying fuel gas and fuel gas-airmixtures.

Oils / oil fumes(HC with carbonnumber >5)

mg/m³ NTP < 0.4 No condensation in lines carrying fuelgas and fuel gas-air mixture, nor for-mation of condensable oil mists

Long-chain hydro-carbons (C6 - CK)

mewl % No information Consultation with MTU necessary.

HC solvent vapors mg/m³ NTP 0 Consultation with manufacturer andanalysis necessary

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Designation Unit Limit value CommentOrganically boundsilicon (e.g.: silane,siloxane, silicons)

mg/m³ NTP < 1.0

Inorganically boundsilicon

mg/m³ NTP CH4 < 5 At Si > 5 mg/m³ NTP relative to100 % CH4 fuel gas content, wear prod-ucts are to be taken note of in the oilanalysis

Dust 3 - 10 µm mg/m³ NTP 5 DVGW worksheet G260Dust must be removed in such amanner that operation of standard-conformant, or standard design gasdevices and gas equipment, is ensur-ed without disturbance.

Dust< 3 µm mg/m³ NTP technically free Dust < 3 µm must be evaluatedthrough a technical analysis, if neces-sary appropriate special filters mustbe used.

Total sulfur mg/m³ NTP 30 DVGW worksheet G260Mercaptan sulfur mg/m³ NTP 6 DVGW worksheet G260Hydrogen sulfideH2S

mg/m³ NTP 5 DVGW worksheet G260

Chlorine mg/m³ NTP 10* With higher values, consultation withmanufacturer and analysis are neces-sary

Fluorine mg/m³ NTP 5* With higher values, consultation withmanufacturer and analysis are neces-sary

Chlorine + fluorine mg/m³ NTP 10* With higher values, consultation withmanufacturer and analysis are neces-sary

NH3 ppm 70* With higher values, consultation withmanufacturer and analysis are neces-sary

Table 8: Requirements and site conditions for natural gas fuel and the corresponding fuel supply

* = For engines with exhaust after-treatment and/or exhaust gas heat recovery, lower limit values mayapply. When using oxidizing catalytic converters; analysis and consultation with MTU are required.

The limit values refer to a calorific value of 10 kWh/m3 NTP. This corresponds to a references to fuelswith 100 % by vol. methane, or the existence of other combustible components in the fuel with thesame energy equivalent and the same input of hazardous materials.

Example:

Russian natural gas with a calorific value of 10 kWh/m3 N is used. The permissible value for total sulfurin the gas thus corresponds exactly to the limit value specified in the table.

When using a gas with the example of East Hanover with Hu = 8.15 kWh/m3 NTP the permissible maxi-mum value for the total sulfur is calculated as:

Permissible total sulfur content = 30 mg/m³ NTP (8.15 kWh/m3NTP. : 10.0 kWh/m3 NTP) = 24.5 mg/m³ NTP.

No warranty is given in the event of impairment and / or damage (corrosion, contaminationetc.) resulting from gases or materials the presence of which was unknown and not agreedupon on conclusion of contract.

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3.3 BiogasGas engines must be operated exclusively with gases which have been specifically approved for thetype of gas engine in use. The options for use of the approved types of gas are to be checked at half-yearly intervals by means of gas analysis to detect changes in the composition of the gas, as well aschanges in the hazardous constituents in the gas and to introduce rectifying measures. The use of fuelsin the entire area of application and operation of the engine is limited to purely gaseous fuels. Liquidfuels are not admissible nor are they provided for.

The components applicable for gas engines are listed in the following table. The components listed ap-ply to gas engines. Components other than those listed are not admissible for gas engines. They pro-vide an approximate value for the commonly used gas compositions. Limit values for the individual com-ponents, unless they are explicitly restricted, are based on the general requirements of freedom fromfluid elements, the exclusion of condensate and hydrocarbons and the global parameters of gas mixing .

Name Components Unit Value range

Fuel gases of biogenicorigin

CO % by vol. not specified

CO2 % by vol. 15 - 50

CH4 % by vol. 40 - 85

C2H6 % by vol. not specified



N2 % by vol. remainder

O2 % by vol. < 3%

Table 9: Main ingredients of fuel gases of biogenic origin, mainly from fermentation processes

Requirements for gaseous fuel

Designation Unit Limit value Comment

Type of gas Biogenic gases from fer-mentation processes

Methane number -- ≥ 115 Dropping below this val-ue there is the danger ofknocking combustion,gas analysis and consul-tation with factors neces-sary

Calorific power Hu kWh/m3 NTP 4.5 < Hu < 8.0 Consultation with manu-facturer required in caseof lower and higher val-ues.

Calorific value deviationfrom the setting value

% ± 20 Consultation with manu-facturer required forhigher values

Maximum rate of changein the calorific value tothe setting value in oper-ation

%/min. 1 <1/ h is permissible.in normal operation

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Fast change in calorificvalue, an start and start-up processes

%/min. <10.0 with a frequency of <1/ his permissible

Gas density kg/m3 NTP 0.93 - 1.40 The gas density can fluc-tuate according to thecomposition. If there arechanges to the main sub-strate and/or significantchanges in the mixing ra-tio of the substrates, agas analysis or, if neces-sary, an adaptation of themixture control is neces-sary.

Gas pressure fluctuationin relation to setting val-ue

% ± 10 This applies to the gas in-let at the gas controlvalve on the engine side

Permissible changespeed of gas pressure

mbar/min. 1 This applies to the gas in-let at the gas controlvalve on the engine side

Gas temperature °C 5 < t < 45 Phase transitions in thefuel gas-air mixture dur-ing engine operation arenot permissible. If thereis a danger of under-shooting the dew point,the gas temperaturemust be increased. Ifthere are deviating tem-peratures, there is dan-ger of thermal aging ofNBR materials (seals, dia-phragms) and the effectsof changes in elasticity athigher temperatures. Thisapplies to the gas inlet atthe gas control valve onthe engine side

Gas temperature devia-tion from the setting val-ue

°C ± 15 This applies to the gas in-let at the gas controlvalve on the engine side

Permissible changespeed of gas tempera-ture

K/min. 0.3 This applies to the gas in-let at the gas controlvalve on the engine side

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Relative gas humidity inthe permissible tempera-ture and pressure range Max. relative gas humidi-ty, absolute

% g/kg

< 80 <28

In the entire gas and mix-ture system no conden-sation is permitted.No water vapor conden-sation in pressure andtemperature range. Nocondensation permittedin lines and containerscarrying fuel gas and fuelgas-air mixtures. At high-er values or if there is adanger of condensationin the operating range ofpressure and tempera-ture, gas drying must beprovided.Phase transitions in thefuel gas and air mixtureare inadmissible duringengine operation in thepressure and tempera-ture range; gas drying isto be provided in case ofhigher values.

Oils / oil fumes mg/m3 NTP < 0.4 No condensation in linescarrying fuel gas and fuelgas-air mixture, nor for-mation of condensable oilmists.

HC solvent vapors mg/m3 NTP 0

Silicon of organic (e.g.silicons) and and of si-lanes, siloxanes

mg/m3 NTP < 4* At Si > 5 mg/m3 NTPbased on 100 % CH4fuelgas content, wear prod-ucts are to be taken noteof in the oil analysis

Inorganically bound sili-con

mg/3 NTP < 2* At Si > 2 mg/m3 NTP inthe gas sample, wearproducts are to be takennote of in the oil analysis.

Dust 3 - 10 µm mg/m3 NTP 5 DVGW worksheet G260Dust must be removed insuch a manner that oper-ation of standard-con-formant, or standard de-sign gas devices and gasequipment

Dust< 3 µm mg/m3 NTP technically free Dust < 3 µm must beevaluated through a tech-nical analysis, if necessa-ry appropriate special fil-ters must be used.

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Silicium of organic (e.g.silicons) and inorganiccompounds (e.g. hydro-silicons, siloxanes)

mg/m3 NTP 6*

Total sulfur mg/m3 NTP 800*

Mercaptan sulfur mg/m3 NTP 4*

Hydrogen sulfide H2S mg/m3 NTP 850*

Total of all chlorine andfluorine compounds

mg/m3 NTP ≤ 40*

Chlorine mg/m3 NTP ≤ 40* With higher values, con-sultation with manufac-turer and analysis arenecessary

Fluorine ≤ 20* With higher values, con-sultation with manufac-turer and analysis arenecessary

NH3 ppm 70* With higher values, con-sultation with manufac-turer and analysis arenecessary

Table 10: Typical condition of fuel gases of biogenic origin, mainly from fermentation processes (inaccordance with DVGW Worksheet - G262)

* = These values are recommended values for series 4000 engines, for engines with exhaust after-treat-ment, lower limit values can apply.

When using the series 4000 in gensets, with and without exhaust heat coupling and/or exhaust after-treatment systems, the respective instructions provided by the genset manufacturer must be compliedwith.

The limit values refer to a calorific value of 10 kWh/m3 NTP. This corresponds to a reference to fuelswith 100 % by vol. methane, or the existence of other combustible components in the fuel with thesame energy equivalent and the same input of hazardous materials.

Example:

When using a gas with the example of northern Germany with Hu = 5,18 kWh/m3 NTP. (The admissiblemaximum value for the total sulfur is calculated as: Permissible total sulfur content = 800 mg/m3 NTP.(5.18 kWh/m3 NTP : 10.0 kWh/m3 NTP) = 414.4 mg/m3 NTP

There is no warranty in case of impairments and / or damages (corrosion, contamination, etc.) that arecaused by gases or substances whose existence was not known or agreed upon at the time of signingthe contract.

Depending on the application, the following maximum permissible pollutant concentrations in the fuelare to be adhered to:

Oxidizing catalyticconverter

Without With With

Exhaust heat uti-lization

180 °C / without 120 °C / 180 °C Without

Sum total of all sul-fur compounds (cal-culated as S) corre-sponds to

mg/m3 NTP 800 20 200

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Hydrogen sulfide(H2S)

ppm at 50 % CH4 280 7 70

Sum total of allchlorine com-pounds (calculatedas CI)

mg /m3 NTP CH4 100 0.5 0.5

Sum total of all flu-orine compounds(calculated as F)

mg /m3 in theamount of CH4

50 0.5 0.5

Total of all siliconecompounds (calcu-lated as Si)

mg /m3 NTP CH4 5 0 0

Ammonia (NH3) ppm at 50 % CH4 30 30 30

Heavy metals (Pb,Hg, As, Sb, Cd)

µg/m3 NTP - 10 10

Table 11: Pollutant concentration in the fuel

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4 Inlet Air and Combustion Air


Harmful substances / contamination in the intake airLong-term damage due to corrosion• It must be ensured that no corrosive compounds (e.g. siloxane, phosphor, arsenic, heavy metal,

sulfur, ammonia, chlorine, fluorine, bromine, iodine compounds) enter the intake air. Or theirlimit values must not be exceeded. Exceeding the limit values voids the warranty.

When operating the plant in swimming pool facilities or in the vicinity of refrigerating installations, it isimportant to bear in mind that even small traces of halogen compounds (chlorine, fluorine) in the intakeair may cause corrosion in the engine or on peripheral components (e.g. on electric motors). It mustlikewise be noted that even cleaning agents may also contain aggressive substances that encouragecorrosion.

The input in the engine in total (fuel and air) must not exceed the limit values specified under fuels.

In case of doubt, MTU Onsite Energy, Augsburg, is to be consulted.

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5 Coolants


Liquid hazardous to the environmentEnvironmentally hazardous• Avoid release into the environment.• Do not dispose of in the sewerage system; dispose of correctly by observing the local regula-

tions of the authorities.• Adequate barriers must be ensured.

Coolant definitionCoolant = coolant additive (concentrate) + freshwater in the specified mixing ratio ready for use in theengine.

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5.2 Requirements imposed on engine coolantRequirements for the quality of heating water above 100 °C apply when an exhaust heat ex-changer has been installed in the engine cooling circuit or the heating circuit.

For the engine coolant system, it is imperative to use filling and top-up water which complies with thefollowing stipulations and which has been premixed with approved corrosion inhibitor/antifreeze:

General requirements Clear, colorless and free fromundissolved substances

pH-value (25 °C) 8.2 - 9.0Electric conductivity (25 °C) < 300 mS/mSum total, alkaline earths 1.0 - 1.5

5.6 - 8.4mmol/l°dH

Chlorides < 80 mg/lSulfates < 70 mg/lIron < 0.2 mg/l

Table 12: Requirements imposed on engine coolant

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5.3 Requirements imposed on mixture coolantFor the engine coolant system, it is imperative to use filling and top-up water which complies with thefollowing stipulations and which has been premixed with approved corrosion inhibitor/antifreeze:


pH value (25 °C) 8.2 - 9.0Electric conductivity (25 °C) < 300 mS/mSum total, alkaline earths 1.0 - 1.5

5.6 - 8.4mmol/l°dH


Table 13: Requirements imposed on mixture coolant

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5.4 Requirements for the quality of water for the gas sequentialheater

The requirements of the quality of the water for the gas sequential heater with temperatures upto 60 °C must be complied with.

For the engine coolant system, it is imperative to use filling and top-up water which complies with thefollowing stipulations and which has been premixed with approved corrosion inhibitor/antifreeze:


pH value (25 °C) 8.2 - 9.0Electric conductivity (25 °C) < 300 mS/cmSum total, alkaline earths 1.0 - 1.5

5.6 - 8.4mmol/l°dH


Table 14: Requirements for the quality of water for the gas sequential heater

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5.5 Requirements for the quality of water for the gas cooler andgas sequential heater

The requirements for the quality of the water of the water source for gas coolers and gas se-quential heaters with temperatures > 60 °C must be complied with.

The operator must specially prepare and monitor the initial water and the filling and top-up water. Asfilling and top-up water, low-salt water or desalinated water (e.g. permeate) or faultless condensatemust be used.

The cold-water system and the sequential circuit may only be filled with the antifreeze Antifrogen Nfrom the company Hoechst AG.

We recommend (bearing in mind the VdTÜV instructions TCh 1466) adherence to the following require-ments for a low-salt operating mode:


pH value (25 °C) 9.0 -10.5Electric conductivity (25 °C) < 100 µS/cmOxygen < 0.05 mg/lChlorides < 20 mg/lSum total, alkaline earths < 0.02

(< 0.1)mmol/l°dH

Phosphate 5 - 10 mg/l

Table 15: Requirements for the quality of water for the gas cooler and gas sequential heater

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5.6 Treatment with corrosion inhibitor / antifreezeCorrosion inhibitor/antifreeze must be added to the water with a concentration of at least 9 % by vol-ume however not under any circumstances at values higher than 11 % by volume. Mixtures containing aproportion under 9 % by volume do not guarantee adequate corrosion protection.

Compensate for coolant losses in such a way as to maintain the antifreeze concentration.

Check the concentration at regular intervals in accordance with the maintenance schedule. The coolantshould be checked at least once a year or at each filling. Due to antifreeze aging, change the coolantafter 6,000 operating hours or at the latest after, see Table 5.7.

Add antifreeze to the water with a concentration of at least 40 % by volume when antifreeze protectionto minus 25 °C is sufficient. If lower ambient temperatures are expected, increase the concentrationaccordingly, but do not under any circumstances increase to values in excess of 50 % by volume. Mix-tures containing a proportion of antifreeze below 40 % by volume do not guarantee adequate corrosionprotection.

Use the treated water in both summer and winter operation. Compensate for coolant losses in such away as to maintain the antifreeze concentration.

Check the concentration at regular intervals in accordance with the maintenance schedule. The coolantshould be checked at least once a year or at each filling. Due to antifreeze aging, change the coolantafter 9,000 operating hours or at the latest after, see Table 5.7.

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5.7 Approved corrosion inhibitors / antifreezesThe use of products other than those listed below will invalidate the warranty.

Corrosion inhibitor / antifreeze concentrates

Manufacturer Brand name Operating hours hour /year

Remarks

MTU FriedrichshafenGmbH

Coolant AH100Antifreeze Concentrate

9000 / 5 X00057231 (20 l)X00057230 (210 l)

MTU America Inc. Power Cool ® Off High-wayCoolant Concentrate

9000 / 5 23533522 (1 gallon)23533523 (5 gallons)23533524 (55 gallons)

Avia Antifreeze APN 9000 / 5 BASF SE Glysantin G05 9000 / 5 BASF SE Glysantin G48 9000 / 5 X00058054 (25 l)

X00058053 (210 l)BASF SE Glysantin G30 9000 / 3 X00058072 (canister)

X00058071 (drum)Bucher AGLangenthal

Motorex Coolant G48 9000 / 5

BayWa AG Tectrol Cool protect 9000 / 5 CCI Corporation L415 9000 / 3 CCI Manufacturing ILCorporation

C521 9000 / 3

Detroit Diesel Corp. Power Cool Plus Coolant 9000 / 3 BP Lubricants ARAL Antifreeze Extra 9000 / 5 BP Lubricants Castrol Heavy Duty Ex-

tended Life Coolant9000 / 3

Castrol Castrol Antifreeze NF 9000 / 5 Castrol Castrol Radicool NF 9000 / 5 Classic SchmierstoffGmbH

Classic Kolda UE G48 9000 / 5

Comma Oil & Chemicals Comma Xstream G30 9000 / 3 Comma Oil & Chemicals Comma Xstream G48 9000 / 5 Fuchs Petrolub SE Maintain Fricofin 9000 / 5 Fuchs Maintain Fricofin G12

Plus9000 / 3 X00058074 (canister)

X00058073 (drum)Ginouves York 716 9000 / 5 Maziva INA Antifritz AI Super 9000 / 5 Mol-Lub EVOX Extra G48 Anti-

freeze concentrate9000 / 5

ExxonMobil Mobil Delvac ExtendedLife Coolant

9000 / 3

ExxonMobil Mobil Antifreeze Ad-vanced

9000 / 3

ExxonMobil Mobil Antifreeze Extra 9000 / 5

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Remarks

ExxonMobil Antifreeze Special 9000 / 5 ExxonMobil Esso Antifreeze Ad-

vanced9000 / 3

ExxonMobil Esso Antifreeze Extra 9000 / 5 MTU Detroit Diesel Aus-tralia

Power Cool - HB500Coolant Concentrate

9000 / 3

Nalco Australien Nalcool NF 48 9000 / 5 Old World Industries Inc. Blue Mountain Heavy Du-

ty Extended Life Coolant9000 / 3

Old World Industries Inc. Final Charge Global Ex-tended Life Coolant Anti-freeze

9000 / 3

OMV OMV Coolant Plus 9000 / 5 Check specificationOMV OMV Coolant SF 9000 / 3 Sotragal - Mont Blanc Antigel Power Cooling

Concentrate9000 / 5

Total Glacelf MDX 9000 / 5 Valvoline Zerex G-48 9000 / 5 Valvoline Zerex G-30 9000 / 3

Table 16: Corrosion inhibitor / antifreeze concentrates

Corrosion-inhibiting antifreeze ready mixtures


Remarks

MTU America Inc. Power Cool Universal50 / 50 mix

9000 / 5 800069 (1 gallon)800071 (5 gallons)


Coolant CS10/90Corrasion Inhibitor Pre-mix

6000 / 2

Bantleon Avilub Antifreeeze Mix(50 %)

9000 / 5 X00049213 (210 l)

Bucher AGLangenthal

Motorex Coolant G48ready to use (50 / 50)

9000 / 5

BP Lubricants Castrol Heavy Duty Ex-tended Life PredilutedCoolant (50 / 50)

9000 / 3

Castrol Castrol Antifreeze NFPremix (45 %)

9000 / 5

Castrol Castrol Radicool NF Pre-mix (45 %)

9000 / 5

CCI Corporation L415 (50 %) 9000 / 3 CCI Manufacturing ILCorporation

C521 (50 %) 9000 / 3

Detroit Diesel Corp. Power Cool Plus Predilut-ed Coolant (50 / 50)

9000 / 3

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Remarks

MTU America Inc. Power Cool® Off-High-way Coolant 50/50 Pre-mix

9000 / 5

Sotragal - Mont Blanc L.R.-30 Power Cooling(44 %)

9000 / 5

Sotragal - Mont Blanc L.R.-38 Power Cooling(52 %)

9000 / 5

Exxon Mobil Mobil Delvac ExtendedLife Prediluted Coolant(50 / 50)

9000 / 3

Old World Industries Inc. Blue Mountain Heavy Du-ty Extended Life Predilut-ed Coolant (50 / 50)

9000 / 3

Old World Industries Inc. Final Charge Global Ex-tended Life PredillutedCoolant Antifreeze50 / 50

9000 / 3

Tosol-Sintez Glysantin Alu ProtectG30 Ready Mix

9000 / 3

Tosol-Sintez Glysantin Alu ProtectPlus G48 Ready Mix

9000 / 5

Total Coolelf MDX (40 %) 9000 / 5 BayWa AG Tectrol Coolprotect

MIX3000 (40 %) G309000 / 3

Table 17: Corrosion-inhibiting antifreeze ready mixtures

Water-soluble corrosion inhibitor concentrates


Remarks


Coolant CS100Corrasion Inhibitor con-centrate

6000 / 2 X00057233 (20 l)X00057232 (210 l)

MTU America Inc. Power Cool® Plus 6000Concentrate

6000 / 2 2353352623533527colored green

Arteco NV Freeco NBI 6000 / 2 BASF SE Glysacorr G93-94 6000 / 2 X00054105 (drum)

X00058062 (canister)BP Lubricants Castrol Extended Life

Corrosion Inhibitor6000 / 2

CCI Corporation A216 6000 / 2 CCI Manufacturing ILCorporation

A216 9000 / 2 X00051509 (208 l)

Chevron Corp. Texcool A - 200 6000 / 2 Detroit Diesel Corp. Power Cool Plus 6000 6000 / 2 colored redDrew Marine Drewgard XTA 6000 / 2

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Remarks

ExxonMobil Mobil Delvac ExtendedLife Corrosion Inhibitor

6000 / 2

Ginouves York 719 6000 / 2 Old World Industries Inc. A216 6000 / 2 Valvoline ZEREX G-93 6000 / 2

Table 18: Water-soluble corrosion inhibitor concentrates

Additional concentrations of water-soluble corrosion inhibitors

Manufacturer Brand name min. Vol-% Max. percent by vol-ume

Arteco NV Freecor NBI BASF SE Glysacorr G93 - 94 CCI Manufacturing ILCorp.

A216

Chevron Texcool A-200 Detroit Diesel Power Cool Plus 6000 Ginouves York 719 Valvoline Zerex G-93

Table 19: Additional concentrations of water-soluble corrosion inhibitors

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6 Heating Water


Inadequate preparation / ventilation of water circuitsLong-term damage to water conveying components• It must be ensured that the specifications of MTU Onsite Energy for the preparation / ventilation

of the water are observed. Failure to comply with specifications voids the warranty.

Supplementary notesIt is pointed out as a precaution that generally costs for foreseeable damage, e.g. by unsuitable waterquality, are not absorbed by machine breakdown insurance either.

The term "Sum total, alkaline earths" refers to the content of hardness-forming, dissolved calcium andmagnesium salts. To convert to the former standard unit of measurement of "Total hardness", the fol-lowing applies:• 1 mol/m 3 = 5.6 dH• The pH value is a measure of the acidity or alkalinity of a solution.• pH = 7 neutral, < 7 acid, > 7 alkaline.

Max. permissible fluctuation of the heating water inlet temperature: Max. 3 K / min.

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6.2 Requirements imposed on heating water up to 100 °CRequirements for the quality of heating water above 100 °Capply when an exhaust heat ex-changer has been installed in the heating circuit.

Filling and top-up water, permissible flow temperatures up to 100 °C

VDI Directive 2035 Sheet 1 (December 2005) and Sheet 2 (September 1998) is definitive. "Preventionof damage by corrosion and scale formation in water heating installations“ with the following guide val-ues (see also the corresponding explanations in the original):


pH value (25 °C) 8.2 - 9.0Electric conductivity (25 °C) 10 - < 500 μS/cmSum total, alkaline earths 1.0 - 1.5

5.6 - 8.4mmol/l°dH

Chlorides < 80 mg/lSulfates < 70 mg/lOxygen content when using oxy-gen binding agents

< 0.1 mg/l

Iron < 0.2 mg/l

Table 20: Requirements imposed on heating water up to 100 °C

If the above limit values are not adhered to, it will be necessary to introduce measures against scaleformation, either through water treatment (softening, demineralization, reverse osmosis) or hardnessstabilization (ST-DOS-H products), and against corrosion processes through inhibiting or oxygen binding(ST-DOS-H products).

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6.3 Requirements imposed on heating water above 100 °CRequirements for the quality of heating water above 100 °Capply when an exhaust heat ex-changer has been installed in the engine cooling circuit or the heating circuit.

Filling and top-up water, permissible flow temperatures over 100 °C and for large heating systems orlong-distance heating systems.

The base alkalization must occur with trisodium phosphate.

The definitive specification is the VdTÜV Directive TCh 1466 governing the quality of water in heatinginstallations which are operated with a supply temperature above 100 °C. The following guide valuessubsequently apply for low-salt method of operation:


pH value (25 °C) 8.2 - 9.0Electric conductivity (25 °C) 10 - < 250 μS/cmSum total, alkaline earths < 0.02

< 0.10mmol/l°dH

Chlorides < 20 mg/lSulfates < 5 - 10 mg/lOxygen content < 0.05 mg/lPhosphate 5 - 10 mg/lIron < 0.2 mg/l

Table 21: Requirements imposed on heating water above 100 °C

Measures against scale formation are necessary, either through water treatment (softening, deminerali-zation, reverse osmosis) or hardness stabilization (ST-DOS-H products), and against corrosion process-es through inhibiting or oxygen binding (ST-DOS-H products).

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7 Lubricating Oil

7.1 General informationThe selection of a suitable engine oil for gas engines depends primarily on the type of gas used to pow-er the engine. The gas engine must only be operated with approved lubricating oil. The engine oils thatmust be used are listed in the approved lubricants table. Another significant factor is the quality of thegas regarding its purity. This requires that the operator regularly carries out gas checks. The gas engineoils used are characterized by the lowest possible ash content. This prevents increased ash depositswhich can lead to reduced catalytic converter performance, or knocking combustion.

When operating biogas (with corrosive contaminants), the lubricating oil is subjected to corrosive con-taminants which are created when the pollutants contained in the gas (chlorine, fluorine and sulfurcompounds) are burned. These corrosive constituents can only be neutralized to a limited extent evenby special additives in the lubricating oil. Corrosion damage to the oil-lubricated engine componentscan only be avoided by more frequent oil changes.

To better buffer concentration peaks when lubricating oil is subjected to corrosive contaminants, an in-creased lubricating oil volume is recommended.

Dispose of used fluids and lubricants in accordance with local regulations.

Mixing different engine oils is strictly prohibited!Changing to another oil grade can be done together with an oil change. The remaining oil quan-tity in the engine oil system is not critical in this regard.

When using biogas, sewer gas or landfill gas the quantity of oil in the engine oil sump is notadequate. A larger volume of oil is required!

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7.2 Approved lubricating oilsEngine-series based usability for SAE class 40 engine oils

Single-grade oils SAEclass 40 for series 4000 gas engines

Manufactur-er

Brand name SAE Viscosi-ty class

4000L614000L624000L63

4000L32FB4000L62FB

4000L324000L33

4000L64

Addinol MG 40 ExtraLA

40 x

Addinol MG 40 ExtraPlus

40 x

Castrol Duratec L 40 x x1)

Chevron Texaco Geo-tex LA40

40 x x1)

Chevron HDAX7200 40 x x xExxon MobilCorporation

Pegasus 705 40 x x1)

Exxon MobilCorporation

Pegasus 805 40 x x1)

Exxon MobilCorporation

Pegasus1005

40 x x x

Fuchs EuropeSchmierstoffGmbH

Titan Ga-nymed Ultra

40 x

Shell Mysella S3 N40

40 x x1)

Shell Mysella S5 N40

40 x

SRS Schmier-ölstoff Ver-trieb GmbH

SRS Miha-grun LA 40

40 x x1)

Total Nateria MH40

40 x x1)

Total Nateria MJ 40 40 xTotal Nateria MP

4040 x x x x

Petro Canada SentronCG40

40 x

Petro Canada SentronLD8000

40 x x x

Table 22: Approved lubricating oils

1) Using these engine oils reduces the service life.

Viscosity grade SAE 40 is prescribed for gas engines. Multi-grade oils are not permitted!

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7.3 Lubricating oil change intervals

Oil change intervals for gas enginesEngine oil change intervals depend on the engine-oil quality, its conditioning, the operating conditionsand the fuel used.

For this reason, every 250 oh an oil sample must be taken and the oil analysis must be compared withthe limit values from the table "Analytical limit values for used gas engine oils SAE 40". The oil samplesmust always be taken under the same boundary conditions (engine at operating temperature) and atthe intended point (sampling port on the oil filter housing). When reaching or exceeding the limit valuesspecified in the table "Analytical limit values for used gas engine oils SAE 40" the oil must be changedimmediately. When using an extended volume of oil, the limit values for wear elements must be reducedinversely proportional to the volume enlargement. The maximum permissible reduction of the limit val-ues for the wear elements is 50 % of the limit value from the table "Analytical limit values for used gasengine oils SAE 40".

Fixed oil change intervals without oil analysis are not permitted

Used-oil analysisThe results of the oil analyses must be archived and the must recent oil sample must be stored possiblefollow-up examinations.

In the event that the limit values are not reached, an oil change must be executed at the latest after oneyear.

The test methods and limit values listed in the table (analytical limit values for gas engine oils) showwhen the result of a single analysis of an oil sample is to be considered as being abnormal.

An abnormal result (e.g. increased wear of the oil) requires an immediate investigation and rectificationof the irregular operating condition (e.g. check of the gas preparation or analysis of the gas samples).

The limit values relate to individual oil samples. When these limit values have been reached or exceededan immediate oil change is indicated. The results of the oil analysis do not necessarily indicate the weartaking place on specific elements and components

Aside from the analytical limit values also the condition, operating condition and possible malfunctionsof the engine and the periphery of the system are of equal importance.

Oil filter operating timeOil filter operating time, see the respective MTU maintenance schedule.

Analytical limit values for used gas engine oils SAE 40Test method Limit values

Viscosity at 100 °C (mm2/s) ASTM D445DIN 51562

Max. 17.5Min. 11.5

Total base number, TBN ASTM D2896ISO 3771

Min. 3 and TBN > TAN

Total acid number, TAN(mgKOH/g)

ASTM D664 New oil value +2.5

iph value Min. 4.5Water (% by vol.) ASTM D6304

EN 12937ISO 6296

Max. 0.2

Glycol (mg/kg) ASTM D2982 Max. 100Oxidation (A/cm) DIN 51453 Max. 20Nitration (A/cm) IR method Max. 20

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Test method Limit valuesWear elements (mg/kg) RFA, ICP Iron (Fe) Max. 30Lead (Pb) Max. 20Aluminum (Al) Max. 10Copper (Cu) Max. 20Tin (Sn) Max. 5Silicon (Si) Max. 15 *)

Table 23: Limit values for used gas engine oils SAE 40

*) The limit value for the Si wear element only refers to natural gas operation.

**) Si is not a wear element for special gases! Presumably any Si-Al compounds.

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8 Transmission oils

8.1 General informationOnly applies for 60 Hz applications.

Manufacturer /supplier

Designation SAE Viscosityclass

Mobil Mobiligear SHCXMP320

40 S e

Mobil SHC 632 40 S eKlüber GEM4-320N 40 S eTotal Carter SH320 40 S e

Table 24: Approved lubricating oils

Only synthetic transmission fluid types are permitted.

Transmission model Engine Liters

GU 320 8V4000Lx12V4000Lx

65

GU 395 16V4000Lx20V4000Lx

92

Table 25: Capacity

Test run is carried out at MTU OEG with Mobil SHC 532

09110149525 TRANSMISSION FLUID MOBIL SHC 632 (DRUM)

09110149555 TRANSMISSION FLUID MOBIL SHC 632 (CAN)

Oil change interval

See Maintenance Schedule – MTU Onsite Energy and the operating manual of the transmission manu-facturer

First oil change: 300 … 5000 operating hours

Subsequent oil changes after 4000 oh or 24 months

Oil analysis (oil sample > 1 liter) every 2000 oh

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9 Exhaust Condensate

9.1 General informationDANGER

Liquid hazardous to the environmentEnvironmentally hazardous• Avoid release into the environment. Do not dispose of in the sewerage system; dispose of cor-

rectly by observing the local regulations of the authorities. Adequate barriers must be ensured.

When fuel is burned in the engine, nitrogen oxides NOx are created in addition to carbon dioxide andwater vapor. These transform into nitric acid in the downstream components in the presence of con-densed water. Other inorganic and organic acids, e.g. sulfuric acid or sulfurous acid, can likewise becreated depending on the fuel composition. Condensate samples therefore display a lightly pungentsmell and dissolved iron as a corrosion product. The hydrogen ion concentration, i.e. the pH value ofsuch condensate samples, is usually in the strong to weak acid range of pH = approx. 0.5 ... 4.

Condensate starts to form, depending on the acid-forming constituent, at exhaust temperatures belowapprox. 160 °C.

Theoretically, 1.5 kg condensate can be created from 1 m3 NTP. of natural gas.

In the case of gensets with exhaust cooling in a heat exchanger, at exhaust temperatures not below110 °C, with properly insulated exhaust lines and with a normal number of start/stop procedures (ratioof operating hours to starts at least 2:1), the condensate accumulation in the heat exchanger and in thedownstream silencer is reduced to a few kilograms per day.

A free discharge via a siphon at a height of approx. 300 mm1) must be provided for the condensate toprevent exhaust gas from escaping from the condensate line. The exhaust condensate should be neu-tralized in a neutralization plant before being discharged into the sewerage system. An oil separator isadditionally required.

Exhaust condensate may only be discharged into the sewage system without being treated after consul-tation with the local waste water authority, and must not under any circumstances be discharged toatmosphere. Municipalities in Germany, or the authorities instructed by them, are obliged to removeaccumulated waste water which also contains condensate. Condensate can also be classified in the"Special waste" category.1) At least 50 mm above the corresponding max. exhaust backpressure according to the module

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10 Appendix A

10.1 Abbreviations

Abbreviation Meaning Explanation

ASTM American Society for Testing and Materi-als

Oh Operatiung hoursBR Baureihe SeriesBV Betriebsstoffvorschrift Fluids and Lubricants SpecificationsDIN Deutsches Institut for Normung e. V. At the same time identifier of German stand-

ards (DIN = “Deutsche Industrie-Norm”)DVGW Deutsche Vereinigung des Gas- und

Wasserfaches e.V.German technical and scientific association forgas and water

EN Europäische Norm European standardICPIR MethodIP Institute of PetroleumISO International Organization for Standardi-

zationInternational umbrella organization for all na-tional standardization institutes

MN Methane numberOEG Onsite Energy MTU Onsite EnergyRFASAE Society of Automotive Engineers U.S. standardization organizationST-DOS-H ProductsVDI GuidelineVdTÜV GuidelineVol. Volume

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10.2 Conversion table of SI units

SI unit US unit conversion

°C °F °F = °C*1.8+32kWh BTU 1 BTU = 0.0002930711 kWh

kWh/m3 NTP BTU/ft3 1 BTU/ft3 = 00.010349707 kWh/m3

kW kBTU/h 1 kBTU/h = 0.2928104 kWkW bhp 1 bhp = 0.7457 kWl gal 1 gal = 3.785412 litersmm inch 1 inch = 25.4 mmm ft 1 ft = 0.3048 mm/s ft/s 1 ft/s = 0.3048 m/s

m3 NTP ft3 NTP ft3 = 0.02831685 m³ NTPbar psi 1 psi = 0.06894757 barkg lb 1 lb = 0.4535924 kg

Table 26: Conversion table

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10.3 MTU Onsite Energy contact person / service partner

ServiceThe worldwide network of the sales organization with subsidiaries, sales offices, representatives andcustomer service centers ensure fast and direct support on site and ensure the high availability of ourproducts.

Local SupportExperienced and qualified specialists place their knowledge and expertise at your disposal.

For our locally available support, go to MTU's Internet site:• http://www.mtuonsiteenergy.com/haendlersuche/index.de.html

24-h HotlineWith our 24-h hotline and the flexibility of our service staff, we are always ready to assist you - eitherduring operation, for preventive maintenance, corrective work in case of malfunction or changed oper-ating conditions, or for spare parts supply.

For our locally available support, go to MTU's Internet site:• http://www.mtuonsiteenergy.com/haendlersuche/index.de.html

Your contact at Headquarters:• [email protected]

Spare Parts ServiceQuick, easy and correct identification of the spare part required for your system. The right spare part atthe right time at the right place.

With this aim in mind, we can call on a globally networked spares logistics system.

Your contact at Headquarters:

Germany:• Phone: +49 821 74800• Fax: +49 821 74802289• E-mail: [email protected]

Worldwide:• Phone: +49 7541 908555• Fax: +49 7541 908121• E-mail: [email protected]

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11 Appendix B

11.1 IndexA

Abbreviations 38Approved corrosion inhibitors / antifreezes – Concentrates 25– Coolant 25– Water-soluble concentrates 25Approved corrosion inhibitors/ / antifreezes – Supplemental concentrations 25Approved corrosion inhibitots / antifreezes – Ready-mixed 25Approved lubricating oils – Lubricating oil 33

B

Biogas – Combustible materials 13– Fuels 13

C

Change intervals – Lubricating oil 34Combustible materials – Biogas 13– Natural gas 10Concentrates – Approved corrosion inhibitors / antifreezes 25Confirmation – Operator 4Contact person – MTU Onsite Energy 40Coolant – Approved corrosion inhibitors / antifreezes 25– Corrosion inhibitor / antifreeze

– Treatment 24– Definition 19– Engine coolant

– Requirements 20– General information 19– Mixture coolant

– Requirements 21– Water quality for gas cooler and gas sequential heater

– Requirements 23

– Water quality for gas sequential heater – Requirements 22

Corrosion protection of the engine 5

D

Definition – Coolant 19

E

Exhaust condensate 37

F

Fuels 7– Biogas 13– Natural gas 10– Silicon content 7

H

Heating water – General information 29– Requirements above 100 °C 31– Requirements up to 100 °C 30– Supplemental notes 29

I

Intake air and combustion air 18

L

Lubricating oil – Analytical limit values 34– Approved lubricating oils 33– Change intervals 34– General information 32– Oil operating period 34– Used oil analysis 34

M

MTU Onsite Energy – Contact person 40– Service partner 40

N

Natural gas – Combustible materials 10– Fuels 10Notices concerning use 5

O

Oil operating period – Lubricating oil 34Operator – Confirmation 4

R

Ready-mixed – Approved corrosion inhibitors / antifreezes 25

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Requirements – Engine coolant 20– Mixture coolant 21– Water quality for gas cooler and gas sequential heater

23– Water quality for gas sequential heater 22Requirements above 100 °C – Heating water 31Requirements up to 100 °C – Heating water 30

S

Service partner – MTU Onsite Energy 40Silicon content – Fuels 7Supplemental concentrations – Approved corrosion inhibitors / antifreeze 25Supplemental notes – Heating water 29

T

Topicality of the publication 5Transmission fluid 36Treatment – Corrosion inhibitor / antifreeze 24

U

Used oil analysis – Lubricating oil 34

W

Water-soluble concentrates – Approved corrosion inhibitors / antifreezes 25

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MTU Fluids and Lubricants Specifications for Series 4000 Gas

Documents

Transcript of MTU Fluids and Lubricants Specifications for Series 4000 Gas