Specific Maintenance Work - DeDietrich C 340 Series Installation And User Manual

Fig.122 Connect the pressure gauge
10 5/6/7/8/9
2
2
3
Fig.123 Close the gas valve
Fig.124 Check the value
(+)
7
X mbar
11.4

Specific maintenance work

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2
3
2
AD-3001408-01
6
AD-3001409-01
AD-3001410-01
Perform the specific maintenance work if this proves to be necessary
following the standard inspection and maintenance work. To conduct the
specific maintenance work:
2. Open the screw in measuring point 2 of the gas control valve.
3. Connect a pressure gauge to measuring point 2 of the gas control
valve.
4. Switch on the boiler.
5. Set the boiler to low load.
6. Close the boiler gas valve very slowly until error code H.01.09
appears on the display.
7. Compare the measured value with the minimum value in the table.
Tab.127 Minimum gas pressure switch value
C 340
280
350
430
500
570
650
8. If the measured value is lower, set the gas pressure switch to the
correct value or replace it.
C 640 Minimum value
(mbar)
560 14
700 13
860 10
1000 10
1140 10
1300 10
C 340 / C 640
11 Maintenance
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