DeDietrich C 330 ECO, Инструкция по установке, эксплуатации и обслуживанию, Страница: 65 / 92

10.2.13 Checking the Gps minimum gas pressure switch
1. Switch off the boiler.
2. Open the screw in measuring point 2 of the gas valve unit.
3. Connect a pressure gauge to measuring point 2 of the gas valve unit.
4. Turn on the boiler.
5. Set the boiler to low load.
6. Close the boiler gas valve very slowly until the boiler goes into
blocking mode.
Code B 15 BL.GAS PRESS/ ; .
7. Make a note of the pressure indicated by the pressure gauge at that
point. Compare the measured values with the checking values in the
table. If the measured pressure is lower, set the gas pressure switch
to the correct value or replace it.
Tab.40 Minimum gas pressure switch value
C 330 ECO Minimum value (mbar)
280 14
350 13
430 10
500 10
570 10
650 10
10.3 Specific maintenance work
Perform the specific maintenance work if this proves to be necessary
following the standard inspection and maintenance work. To conduct the
specific maintenance work:
Fig.73 Checking the Gps
AD-0000543-01
P1
6
3
2
P
3
2
(+)
X mbar
.....
... m
bar
7
≤ 10.0
1
10 5/6/7/8/9
2 2
2
4
10 Maintenance
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