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Installation Guideline Installation Guideline This guideline describes the recommended installation procedure and maintenance for the STT SCRmarine system Latest version available at www.sttemtec.com STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
Note! If a POC is used in combination with SCR or as a stand alone unit, the fuel quality must fulfill EN 590. For other fuel qualities please contact Stt Emtec AB for consultation. Figure 1 on the next page is a general component location guide for the urea system.
Installation Guideline 2.1 The STT SCRmarine system Figure 1. SCR marine system configuration 1. SCR Catalyst, 2. Injection point, 3. Mixer unit, 4. Diagnostic display, 5. Urea tank, 6. Urea dosing unit, 7. Electronic control unit (ECU), 8. Urea pressure sensor, 9. Control cabinet, 10. Air pressure regulator, 11.
300 to 500°C. Note that this data is a guideline only and that data from the engine manufacturer are to be used for determine the proper SCR catalyst configuration. STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
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The pressure drop curves that are displayed in the graphs above are a measured value of the differential pressure over the SCR catalysts and mixer unit. It doesn’t include bends, silencers or additional piping. STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
Additional brackets to support the POC assembly may be needed depending on the surroundings and support of other parts. STT Emtec recommends the use of metal resilient elements type Vibratec® or similar. Additional insulation may be used according to regulations and/or customer demands.
Flanges for DN125, DN150 and DN200 exhaust pipe. Maintenance: No maintenance required, check for exhaust leaks at the same time as the rest of the exhaust system. STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
In a typical installation the insulation is minimum 50 mm thick. Figure 13. Catalyst assembly. The red area shows where welding is not allowed. STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
The gasket shall always be replaced. When installing the new nozzle, check that that the nozzle tip is oriented in the same direction as the exhaust flow, see figure 16 above. STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
In case of heavy vibrations, additional rubber bobbins should be used (STT P/N 101793). STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
Note! When releasing the urea- and the electric connections, make sure no urea gets in contact with the connector receptacles! STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
(mbar)” should read 1800±200 mbar when correct air pressure is adjusted. This reading is in absolute i.e. showing ≈ 1000±200 mbar when the air valve is “OFF” Use the locking device to secure the adjustment screw. STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
If a compressed air system is not available a separate air compressor has to be installed. Table 1 below contains STT Emtec’s recommendations of the air compressor. Table 1: Compressor data recommendations Capacities...
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Note! Urea is very volatile and will slip thru the slightest gap! Make sure all connections are tight! Note! Do not use copper or brass in compression fittings! STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
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When using a bulk tank to store larger amounts of urea than the service tank(-s) can hold the recommended material selection is chromium nickel or chromium nickel molybdenum steel . STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
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The standard length of the urea nozzle is 1,5 meters. If a longer urea nozzle is needed contact technical department at STT Emtec AB for evaluation. The urea nozzle tip is made of stainless steel and the urea nozzle line is made of stainless steel braided teflon tube.
The urea tank provides the urea dosing unit with AdBlue®. The liquid is pumped from the tank by using the built-in diaphragm pump that is positioned inside the urea dosing unit. The urea dosing STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
The insulation has to fulfil the stated regulations, e.g. surface temperature. The insulation is not within STT Emtec’s scope of supply but must be designed for easy access to the covered parts and clamps if service is needed. STT Emtec AB (pbl)
The NOx sensor element should be installed 150 mm or more from a bend and a flange. Apply anti-seize (high temperature graphite paste) to the mounting boss and the sensor thread before assembly. Max torque 50 Nm. STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
Note! Do not tight the nut past ¾ of a turn, the thermocouple will break or wear out prematurely Note! The inside radius of the thermocouple must not be bent narrower than 15mm STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
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(10m) extended wiring harness for the exhaust back pressure sensor is available. Description Quantity 108365 EBP extension cable (10m) STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 – 2927 SE-852 29 SUNDSVALL e-mail: info@sttemtec.com...
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See Diagnostic tool manual in Appendix 4 for further information Figure 42. Example of monitoring software desktop STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
30m (to the control cabinet). • Dimensions: 117mm x 79mm x 24mm • IP classification: IP20 • Temperature range: -20ºC-+70ºC Figure 44. Discrete display STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
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10 m. Figure 45. Control cabinet with brackets and bobbins (Option) 1. Control cabinet, 2. Rubber bobbin, 3. Bracket STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
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Issue: 1.6 Installation Guideline Main power switch Figure 46. Control cabinet, interior layout STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 – 2927 SE-852 29 SUNDSVALL e-mail: info@sttemtec.com...
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More detailed description of function ECU IO This is where terminals are connected in the control unit (ECU). For information only, (pre-wired in the cabinet). STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
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Air supply to pressure regulator 4 Nozzle Urea/air mix from pump to injection nozzle Figure 47. Wiring length and connection diagram, example only! STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
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SUPPLY Supply voltage SCR system supply voltage (after AC/DC converter) Exhaust prs Optional extended cable for exhaust backpressure STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 – 2927 SE-852 29 SUNDSVALL e-mail: info@sttemtec.com...
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The complete post installation adjustments and inspection protocol can be found in appendix 3 This protocol must be completed and sent to STT Emtec AB in order to enable the product warranty and is a part of the documentation package handed over to the system operator.
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5.1.3 Flange connections Regular visual inspection for exhaust/soot leakage. Check that screws and bolts are securely tightened every 6 month. Replace gaskets if necessary. STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
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The DEF filter skall be replaced every 12 mon or upon performance problems with the dosing unit; typically noticed as reoccurring trouble codes for “Dosing unit”, “Air/Urea flow” or “Dosing failure alarm”. See section 2.4.3 for a guide to replace the DEF filter. STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9...
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Kept as short as possible Material Teflon alt. polyamide tube (PA) or stainless steel pipe Pressure: 0 to 2 bar STT Emtec AB (pbl) Tel: +46 (0)60-64 10 40 Head office: Sundsvall Kontorsvägen 9 Fax: +46 (0)60 64 10 45 Org.nr: 55 62 05 –...
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< 5Ohm the terminal group B is physically connected to and the 0V reference in the engine control cabinet Note: The main electrical switch in the SCR control cabinet may have to be disabled to perform this test! STT Emtec AB...
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Check if any active errors occur. If any active error occurs, consult error code list, appendix 4 for corrective actions. Note. If CAN J1939 is used for obtaining engine signals, errors for engine signals can occur if engine control system is deactivated. STT Emtec AB...
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And that the corresponding fault code becomes active (standard default is 0°C). Reconnect the sensors and check that the fault code becomes inactive and that the reading resume the original value Repeat the procedure with T_DOC. STT Emtec AB...
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0 mbar ± 10 EmtecDiag corresponds to 0 mbar. mbar max. Disconnect the pressure hose to the sensor and ± 10 mbar apply a known pressure to the sensor. difference to Note: max pressure 1000 mbar. the applied pressure. STT Emtec AB...
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Visual inspection of all air connections and lines at No air leaks urea pump. Verify that the air pressure at the manometer at the 5,5bar FR-unit is 5.5bar and the shut-valve on the FR unit ±0.5bar is open. STT Emtec AB...
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In order to inspect the urea/air line from the urea pump to the nozzle (point 4 in the table below) the engine must have been run in such conditions so urea dosage has occurred (an exhaust temperature above 230°C and at various loads) STT Emtec AB...
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Visual inspection of urea connection and line at the No leakage urea nozzle. Check if any active error codes occurs after at least 30 minutes of engine running. If any, consult the error code list, appendix 4, for corrective actions. STT Emtec AB...
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Approved interval Result Signature Engine load within ± 5% of standard instrumentation Engine speed within ± 5% of standard instrumentation Boost prs within ± 5% of standard instrumentation Boost air temp within ± 5% of standard instrumentation STT Emtec AB...
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“Air valve” and “Mantle air valve” are “On” in EmtecDiag. Check that the value on the meter “Nozzle prs” in 1600 mbar EmtecDiag. ± 200mbar max. Check that the value on the meter “Mantle prs” in 1800 mbar EmtecDiag. ± 200mbar max. STT Emtec AB...
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After finalization of the post installation inspection checks, clear the error code list and disconnect the service tool. Make sure that all connectors and hoses are reinstalled properly and leave the disable switch inside the control cabinet on (enabled) and the compressed air valve open. STT Emtec AB...
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Conforms to Regulation (EC) No. 1907/2006 (REACH), Annex II - United Kingdom (UK) SAFETY DATA SHEET Air1® Identification of the substance/preparation and of the company/undertaking Identification of the substance or preparation Product name Air1® Urea Solution 32.5% Synonyms Company/undertaking identification Manufacturer / Supplier Yara Industrial Immingham...
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Air1® Fire-fighting measures Extinguishing media In case of fire, use water spray (fog), foam, dry chemical or CO These products are Hazardous thermal carbon dioxide decomposition products carbon monoxide nitrogen oxides Ammonia. Special protective equipment Fire-fighters should wear appropriate protective equipment and self-contained breathing apparatus (SCBA) with a full face-piece operated in positive pressure mode.
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Air1® Physical and chemical properties Melting/freezing point -11.5°C (11.3°F) Vapour pressure 6.4 kPa (48 mm Hg) (at 40°C) 1.09 g/cm (20°C / 68°F) Density g/cm Miscible in water. Yes. Stability and reactivity Stable under recommended storage and handling conditions (see section 7). Stability Urea reacts with calcium hypochlorite or sodium hypochlorite to form the explosive nitrogen Conditions to avoid...
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Air1® 14. Transport information Not regulated. Not classified as hazardous material according to UN Orange Book and international transport codes e.g. ADR (road), RID (rail), ADN (inland waterways) and IMDG (sea). Regulatory information EU regulations This product is not classified according to EU legislation. Risk phrases Industrial applications.
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