Installation
28 — English
Servitec 35-120 with Touch controller — 06.07.2016 - Rev. B
6.4.2
Level dependent "Levelcontrol" make-up mode
The "Levelcontrol" operating mode is set in the Customer menu of the device controller. This operating mode is used for facility systems
with pressure-maintaining stations. The make-up with water depends on the filling level in the expansion tank of the pressure-
maintaining station. The "LIS“ pressure pick-up determines the filling level and sends this value to the controller of the pressure
maintaining station. The controller sends a 230 V signal to the device controller when the filling level in the expansion tank has fallen
below the set value.
Exemplary representation of Servitec 35 - 95 with motor ball valves in a facility system.
•
Multi-tank system with return flow admixture and a compressor-controlled pressure-maintaining station.
1
Pressure-maintaining station (compressor-controlled)
with expansion tank
WC Make-up line
2
Device
DC
Degassing lines
3
Fillsoft (optional accessory) see chapter 4.6 "Optional
equipment and accessories" on page 17
PIS
Pressure transducer
4
Fillset Impulse (optional accessory) see chapter 4.6
"Optional equipment and accessories" on page 17
LIS
Pressure pick-up
Make-up with water is realised by regulating the motor ball valve in the "WC" make-up line. The device controller regulates the motor
actuator of the motor ball valve. This ensures a controlled make-up with water and monitoring of the make-up time and cycles.
