Nu-Way MGN 1350 M3D DLU, Installation & Maintenance Manual

Page 1: ...Installation Maintenance Manual MGN 800 LN SC Modulating Gas Burner Tel 44 0 1905 794331 Fax 44 0 1905 794017 Email info nu way co uk Web www nu way co uk...

Page 2: ...flap positioning motor 7 14 Air pressure switch 7 15 Gas pressure switch for gas inlet pressure 7 16 Gas pressure switch for VPS 7 17 Adjustment of the ignition electrodes 8 18 Flame control with Ion...

Page 3: ...routed with the lowest pres sure loss over the shortest distance to the burner The loss of gas pressure via the gas train and the burner and the resistance on the fuel gas side of the heat generator m...

Page 4: ...LL E N Mode of operation Progressive two stage or modulating Voltage 3 PE 50 Hz 400 V Max power consumption at start during operation 6 5 A max 3 6 A eff Electric motor power at 2800rpm in kW 1 0 Fla...

Page 5: ...e position Position the burner housing in the gas jacket hinge and secure it with a rod The burner is now in the ser vice position Make sure that the gasket is correctly seated between the gas jacket...

Page 6: ...X86 must be connected during two stage operation as delivered condition see Fig For modulating operation the coding plug X85 must be removed Once the connection to the electricity supply has been est...

Page 7: ...h is a differential pressure switch and monitors pressure at the forced air burner The air pressure switch is preset at the factory 15 Gas pressure switch for gas inlet pressure The gas pressure switc...

Page 8: ...the control box Disconnect the plug of the ionisation cable and connect the ionisation measuring cable Perform measurement straight after the post ignition time during the safety time period The ioni...

Page 9: ...h gas train KEVII 1 KEV 2 and KEV DN65 or 23 a Gas train KEV25 1 and KEV30 1 Record the setting data Check the gas pressure monitor after start up To do so close ball valve slowly The burner must shut...

Page 10: ...g In high load operation check the air surplus and if necessary correct the setting with the large flame adjustment screw on the gas pressure regulator 2 Setting the output in high and low load operat...

Page 11: ...gas pressure regulator The CO2 level in the flue gas should be 9 10 for natural gas The low load setting influences the high load setting In high load operation check the air surplus and if necessary...

Page 12: ...not be longer than 20 sec as the MPA 22 will otherwise revert to standby mode If this is the case you will have to start the code entry procedure from the beginning again Press the minus key twice Co...

Page 13: ...request The burner should now start up and dwell in the ignition position If this is not the case please repeat the procedure for adjustment of ignition point P0 under step 7 After the burner has sta...

Page 14: ...ssure B acc to table 989 mbar Gas pressure PG at counter 20 mbar Gas temperature G 16 C Boiler output Qn 220 kW Efficiency K assumed 92 Calorific value Hi n 10 4 kWh m3 Gas flow in standard state Vn G...

Page 15: ...i n 9 3 kWh m3 Burner output kW Boiler output 92 kW Air flap position Burner head position mm Gas nozzle pressure mbar Gas flow rate m3 h St 2 St 1 St 2 St 2 P 9 St 1 P 1 St 2 St 1 St 2 St 1 300 150 2...

Page 16: ...on Burner starts up and swit ches to fault mode before or after expiry of safety period Air pressure monitor does not switch through during pre ventilation See Page 7 21 h Ignition influencing of ioni...

Page 17: ...flame quality P18 The eBus address of the MPA P19 The switch setting of the valve proving system P21 The eBus address of the external controller P24 The modulation delay The set start points P26 To ex...

Page 18: ...photo resistor or internal fault 2CH Internal hardware fault 30 h Internal hardware fault 31 h Internal hardware fault 32 h Internal hardware fault 33 h Internal hardware fault 34 h Internal hardware...

Page 19: ...st duration Y3 remaining post ventilation time State 17 Remaining post ventilation time State 18 Restart disable time waiting loop for low gas program State 20 Standby position 5AH Internal hardware f...

Page 20: ...Boiler type Gas fitting Measured values min max Date P0 start point P1 min load P9 max load Flue gas temperature C Carbon dioxide CO2 level O2 content CO level Flue mbar Nozzle pressure mbar Boiler pr...

Page 21: ......

Page 22: ...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...