Commissioning
42 — English
Servitec 35-120 with Touch controller — 06.07.2016 - Rev. B
7.6
Hydraulic equalisation
Perform hydraulic equalisation at devices with mechanical actuator.
•
1
Optional "GV" solenoid valve
•
Only with Servitec 75gl, Servitec 95gl and
Servitec 120gl
4
"CD
w
" pressure-reducing valve in the "WC“ make-up line
2
"CD
p
" overflow valve downstream of "VT" pump
5
"GV" solenoid valve
3
"CD
s
" pressure-reducing valve in the "DC" degassing line
Hydraulic equalisation ensures stable volume flows during operation and over the entire working range of the device. The hydraulic
equalisation is performed once by manually adjusting the pressure at the mechanical actuators.
The pressure must be adjusted at these mechanical actuators:
•
"CD
s
" (4) and "CD
w
" (3) pressure-reducing valves
•
"CD
p
" (2) overflow valve
Ensure that the vacuum spray tube is filled with water during hydraulic equalisation. The "GV" solenoid valves must be open for the
correct adjustment of the pressure-reducing valves (3) and (4). Sufficient volume must flow through the pressure reducing valves and
the overflow valve (2) during the adjustment. Flow noise from the valves indicate that volume flows. The relevant pressure gauges
indicate the actual pressure.
Note!
Hydraulic equalisation is not required for Servitec 35-95 devices with motor ball valve.
