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Summary of Contents for Nu-Way MG860-LN T3S
- Page 1 Installation & Maintenance Manual MGN 860 – 1350 LN (DMG972) Gas Burner 11/12 Tel: +44 (0) 1905 794331 Fax: +44 (0) 1905 794017 Email: info@nu-way.co.uk Web: www.nu-way.co.uk...
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Page 2: Table Of Contents
Contents General information ....................... 3 Checking scope of delivery and electrical data ............. 3 Maintenance and customer service ................3 Operating instructions....................3 Instruction of operating personnel ................. 3 Filter/Strainer ......................... 3 Key for code designation ....................4 Technical specifications....................4 Boiler connection dimensions .................. -
Page 3: General Information
EN 437 and are in compliance with the EN 676 European standard. 2 Checking scope of delivery and electrical data Before installing the Nu-Way gas burner, please check that all items included in the scope of delivery are present. Scope of delivery: burner housing, gas jacket with burner pipe, mounting kit, documentation and gas train. -
Page 4: Key For Code Designation
Burner output max Natural gas LL + E ="N", LPG = "L" Series 8 Technical specifications Burner type Technical specifications MG860-LN T3S MG1350-LN T3S Min. burner output in kW Max. burner output in kW 1350 Gas type Natural gas LL+E=“N“, LPG = „L“... -
Page 5: Mounting The Gas Jacket On The Boiler
10 Mounting the gas jacket on the boiler Air pressure connection Use adhesive to affix the gas-jacket gasket to the gas jacket. The boiler connection plate has to be prepared in ac- cordance with the sizes as stated in "8 Boiler connection dimensions". -
Page 6: Electrical Connection
12 Electrical connection Always set the main switch to "Off" and remove the fuse before connecting the cables or removing electrical components. The burner must be connected to the electricity supply in accordance with the wiring diagram. This wok must be performed by trained, qualified electricians. -
Page 7: Air Flap Positioning Motor
13 Air flap positioning motor Type Modulating The air flap positioning motor is used for adjustment of the air flaps on controlled burners with air shutters. Make the adjustment using the limit switch cams on the positioning drive roller. The cam positions for adapting the burner to the re- quired boiler output are specified in the adjustment ta- ble (pages 16-17) . -
Page 8: Gas Pressure Switch For Vps
15 Gas pressure switch for VPS The gas pressure switch is used for monitoring the gas inlet pressure. When the gas inlet pressure drops below the minimum level (preset at the factory to 12 mbar), the burner is shut off. The burner starts up au- tomatically again when the minimum pressure is exceeded. -
Page 9: Adjustment Of The Burner Head
18 Adjustment of the burner head Set the position of the burner head according to burner output in accordance with the table on page 15ff. 19 Control unit DMG 972 Testing the control unit for proper functioning Danger of fatal injury from electric shocks! Disconnect electrical cable from power supply before carrying out any work on live parts! Troubleshooting may only be carried out by authorised... - Page 10 Failure cause diagnostics In case of failure, the LED is lit continuously. The light from the LED is interrupted every 10 sec. and a flash code with information on the failure is output. This results in the following sequence which is repeated until the failure is acknowledged, i.e.
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Page 11: Calculation Principles For Gas Burner Adjustment
20 Calculation principles for gas burner adjustment The values given in the tables are setting values for start-up. The necessary system adjustment must be newly determined in each case. General: the calorific value (H ) of fuel gases is generally specified for the normal state (0°C, 1013 mbar). -
Page 12: Gas Train Kev Ii 1 ½" , Kev 2" And Kev Dn65
21 Gas train KEV 1 ½" , KEV 2" and KEV DN65 Installing the gas train Installation position only in horizontal line, not tilted. Minimum distance to walling 20 mm Screw the combustion chamber pressure measuring nipple into the gas jacket at the top (see "10 Mounting the gas jacket on the boiler"). -
Page 13: Gas Train Kev25 1" And Kev30 1 ½
22 Gas train KEV25 1" and KEV30 1 ½" Installing the compact unit Installation position only in horizontal line, not tilted. Minimum distance to walling: 20 mm Screw the air pressure measuring nipple into the gas jacket at the top (see "10 Mounting the gas jacket on the boiler"). Route the connecting hose between the measuring nipple for air pressure and the compact unit in a loose loop. -
Page 14: Leak Check Device (Accessory)
23 Leak check device (accessory) The leak check device is an automatic valve monitoring device. The two gas solenoid valves integrated in the gas line are checked for integrity. After a controlled shutdown of the burner or forward before restarting the purge time, the gas pressure is increased in the test line between the gas solenoid valves. -
Page 15: Start-Up
25 Troubleshooting Flash code DMG Defect determined: Cause: Remedy: Burner motor does not Electric supply lead faulty Rectify faults in electrical installation start up Fuse faulty Replace Safety thermostat locked Unlock Temperature of controller setting is Renewed start attempt after temperature exceeded drop Control box faulty... -
Page 16: Possible Faults
26 Adjustment tables... -
Page 18: Explosion Drawing / Spare Parts List
27 Explosion drawing / Spare parts list... - Page 19 Item Designation Art. No. Burner tube MG860-LN 47-90-24880 Burner tube MG860-LN, extended by 100 mm 47-90-25260 Burner tube MG860-LN, extended by 200 mm 47-90-25261 Burner tube MG1350-LN 47-90-24878 Burner tube MG1350-LN, extended by 100 mm 47-90-25258 Burner tube MG1350-LN, extended by 200 mm 47-90-25559 Flow plate complete with ignition electrode 47-90-24877...
- Page 21 Enertech Limited, P O Box 1, Vines Lane Droitwich, Worcestershire, WR9 8NA Tel: +44 (0) 1905 794331 Fax: +44 (0) 1905 794017 Email: info@nu-way.co.uk Web: www.nu-way.co.uk...
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