DeDietrich C 330 ECO Installation, User And Service Manual page 70

7. Checking and maintenance
10
5/6/7/8/9
1
2
3
10 sec
1
3
10 sec
5/6 7/8/9
3
VPS
VPS
GPS
(+)
X mbar
68
2
2
3
2
3
10
3 3
GPS
VPS
GPS
4
3
2
5 5
0 Ohm
SLOW
6
T005264-B
B - Check the switch value
1. Remove the pressure from the gas block; to do so remove the
hose connected to measuring point 3 of the gas block (5/6/7/8/9
sections) or the measurement point 3 of the VPS (10 sections) .
2. Wait approximately 10 seconds and reconnect the disconnected
hose to measuring point 3 of the gas block or the measurement
point 3 of the VPS.
3. Remove the connecting plug from the VPS gas leakage control.
4. Connect an ohmmeter to terminals 2 and 3 of the VPS.
5. Push the syringe in very slowly until the ohmmeter indicates 0
Ohm.
6. Make a note of the pressure indicated by the pressure gauge at
that point. If the measured pressure differs by more than 2 mbar
from the VPS set-up value, set the pressure switch to the correct
value or replace it.
C 330 ECO - C 630 ECO
31/05/2012 - 7600532-01