Dungs VPS 504 Handbuch - Seite 9
Blättern Sie online oder laden Sie pdf Handbuch für Kontrolleinheit Dungs VPS 504 herunter. Dungs VPS 504 12 Seiten. Valve proving systems
Auch für Dungs VPS 504: Bedienung und Montageanleitung (17 seiten)
Seite drucken
Startup
1. Check test section for leaks after
assembly.
2. Start test by using temperature regu-
lator and/or restart or by pressing the
reset button of VPS 504.
3. If the test section is tight
Depending on the length of the test
section and the residual pressure
applied, the pumping time is between
3 s and 26 s.
The release for the automatic burner
control is then given after approx. 10
s at the earliest (at small test volumes
and small input pressures) and after
approx. 26 s at the latest (at large test
volumes and large input pressures)
- the yellow signal lamp lights up.
If the test section is leaky
The test pressure is not attained.
9 ... 12
The motor pump switches off, the red
fault lamp lights up. Switch-through to
the automatic burner control does not
take place.
Functional check
By opening a screw plug in test nipple
p
(p
) during test period (pumping
2
a
time), leakage can be simulated and a
function check can take place.
Setting
The VPS 504 must not be adjusted
on site.
Assembly
Directly flange the VPS 504 laterally to
the DUNGS multiple actuators (mount-
ing is possible on left-hand or right-hand
side) using two 10.5 x 2.25 O rings and
four M4 x 16 self-tapping screws.
If an exhaust gas valve is
installed in the boiler, it must
be open at the beginning of the
test.
In order to prevent functional
and leakage problems, we
recommend the use of solenoid
valves as per EN 161 Class A and
Class B.
Insufficiently shielded fre-
quency converters could
cause faults in the VPS due to
network disturbances.
Make provisions for sufficient
electrical shielding.