Description of the device
Servitec 35-120 with Touch controller — 06.07.2016 - Rev. B
English — 15
Degassing programmes
The device controller regulates the degassing process. The controller monitors the operating states and outputs them to the display.
The controller provides 3 different degassing programmes for selection and adjustment:
•
Continuous degassing
– For continued degassing over several hours or days in a sequence of degassing cycles without idling periods. This degassing
programme must be selected after commissioning and repairs.
•
Interval degassing
– This comprises a limited number of degassing cycles. The system idles between the intervals. This degassing programme must
be selected for continuous operation.
•
Make-up degassing
– Is automatically activated for every water make-up during continuous or interval degassing. The sequence corresponds to
continuous degassing. The degassing time is limited by the make-up time.
Make-up variants
There are two make-up variants for the device. These are selected in the controller and set for the device:
•
Magcontrol make-up variant.
– For plant systems with diaphragm expansion tanks. The pressure in the plant system is monitored with the aid of the
integrated pressure sensor in the device. If the plant pressure falls below the calculated filling pressure, water make-up is
triggered.
•
Levelcontrol make-up variant:
– For plant systems with pressure maintaining stations. The water level in the expansion tank of the pressure maintaining system
is determined with the "LIS" external pressure transducer. If the water level falls in the expansion tank, a signal is triggered at
the device controller to start the water make-up.
Servitec 35 - 95 with motor ball valve
1
Signal line from the "LIS" level sensor for the
"Levelcontrol" make-up variant
5
"WC" make-up line
2
Signal line from the "PIS" pressure transducer for the
"Magcontrol" make-up variant
6
For optional equipment and accessories see chapter 4.6
"Optional equipment and accessories" on page 17
3
"DC" degassing line (degassed water)
7
Control Touch controller
4
"DC" degassing line (gas-rich water)
