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Service mode - pneumatic gas-fired operation

The service mode serves to display the set parameters and to read out the fault memory. It can be invoked
in any operating state of the burner. 

Important: 
setting values cannot be changed in service mode. If no key is pressed for longer than 20 sec., the
display returns to standby mode.

To access the service mode, press  the 

enter key

 for approx. 2 sec.

The following now appear on the display: point 

P0

 and the air flap posi-

tioning motor setting value at ignition in angular degrees, plus a wrench
symbol denoting the service mode.

The  following  points  can  be  retrieved  by  repeatedly  pressing  the  enter
key:

- The characteristic curves for points 

P0

P1

 and 

P9

- The last 6 fault messages 

P10

 to 

P15

 (see fault code MPA)

- The testing times of the valve proving system 

P16

 and 

P17

- The 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 exit the service mode, please press the enter key or wait approx. 
20 sec.

Information mode

The information mode is intended for display of consumption figures, operating hours and software data.

To access information mode, press the 

enter key

 for approx. 0.5 sec.

A

 zero

 and a 

value

 appear on the display.

The following values can be queried in information mode under setting
points 0 to 8. Retrieve by repeatedly pressing the enter key:

Important:

 

If no key is pressed for longer than 20 sec., the display returns to
normal operating mode.

0 = fuel consumption
1 = total operating hours 
2 = for oil only
3 = for oil only
4 = number of successful startups
5 = display of software version
6 = software creation date 
7 = hardware number 
8 = date of production

Adjustment point

Adjustment values

Service mode symbol

display value

Adjustment point

information mode symbol

Содержание MGN 1350 M3D DLU

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 21: ......

Страница 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...

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