DeDietrich C 330 ECO, Инструкция по установке, эксплуатации и обслуживанию, Страница: 64 / 92

Checking the VPS switch value
1. Remove the pressure from the gas valve unit; first remove the hose
that is attached to measuring point 3 of the gas valve unit (on the
other side of the VPS pressure switch).
2. Wait approximately 10 seconds and reconnect the disconnected hose
to measuring point *3 of the gas valve unit.
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.
Fig.72 Checking the VPS switch value
AD-0000542-01
3
2
1
10 5/6/7/8/9
SLOW
(+)
X mbar
....
....
m
ba
r
6
VPS
GPS
VPS GPS
3 3
5/6 7/8/9 10
3
2
4
GPS
VPS
0 Ohm
5 5
10 sec
10 sec
3
2
2
3
3
1
3
2
10 Maintenance
64 7600532 - v.11 - 13122018