Reflex Servitec 35 Mode D'emploi Original page 38

Installation
6.4.1 Pressure-dependent "Magcontrol" make-up mode
Example representation of a multi-tank system with hydraulic switching point and
a "MAG" diaphragm-type expansion vessel.
1 "MAG" expansion vessel
2 Servitec
Optional equipment and accessories  4.5 "Optional equipment
3
and accessories",  34
4 "WC" make-up line
The "Magcontrol" operating mode is set in the Customer menu of the Servitec
controller. This operating mode is used for plant systems with a diaphragm-type
expansion vessel. The make-up action depends on the pressure. The required
"PIS" pressure sensor is integrated in the Servitec. The "DC" degassing lines are
connected close to the diaphragm-type expansion vessel. In this way precise
pressure monitoring is enable for demand-matched make-up as.

Note!
Connect the degassing lines on the return side of the system upstream
of the hydraulic switching point. In this manner the permissible
temperature range of 0° - 90°C is adhered to.
6.4.2 Level dependent "Levelcontrol" make-up mode
Typical representation of Servitec 35 - 95 with motorized ball valves in a facility
system.
1 "PIS" pressure transducer
2 "DC" degassing line (degassed water)
3 "DC" degassing line (gas-rich water)
Optional equipment and accessories  4.5 "Optional equipment
4
and accessories",  34
5 "WC" make-up line
6 Servitec
7 "LIS" pressure pick-up
8 Pressure-maintaining station (compressor-controlled) with
expansion vessel
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 vessel of the pressure-maintaining station. The "LIS" pressure
transducer determines the filling level and sends this value to the controller of the
pressure maintenance station. The controller sends a 230 V signal to the device
38 — English
controller when the filling level in the expansion vessel has fallen below the set
value.
Make-up with water is realised by regulating the motorized ball valve in the "WC"
make-up line. The device controller regulates the motor actuator of the motorized
ball valves. This ensures a controlled make-up with water and monitoring of the
make-up time and cycles.
6.5
Risk of serious injury or death due to electric shock.
If live parts are touched, there is risk of life-threatening injuries.
•
•
•
For the electrical connection, you must differentiate between a connection
component and an operating component.
1
2
3
4
5
The following descriptions apply to standard systems and are limited to the
necessary user-provided connections.
1.
2.
3.
4.
5.
Vacuum spray degassing — 01.04.2022-Rev. D
Electrical connection
DANGER
Ensure that the system is voltage-free before installing the device.
Ensure that the system is secured and cannot be reactivated by other
persons.
Ensure that installation work for the electric connection of the device is
carried out by an electrician, and in compliance with electrical
engineering regulations.
Connection unit
Covers of the operating unit (folding)
•
RS-485 interfaces
•
Pressure output
Operating unit (Control Touch controller)
Cable bushings
Covers of the connection unit (folding)
•
Supply and fusing
•
Floating contacts
•
Aggregate connection
Shut down the system and secure it against unintentional reactivation.
Remove the covers.
DANGER – electric shock! Risk of serious injury or death due to
electric shock. Some parts of the device's circuit board may still be live with
230 V even after the device has been physically isolated from the power
supply by pulling out of the mains plug. Before you remove the covers,
completely isolate the device controller from the power supply. Verify that
the main circuit board is voltage-free.
Insert a suitable screwed cable gland for the cable bushings at the rear of
the connection component. M16 or M20, for example.
Thread all cables to be connected through the cable glands.
Connect all cables as shown in the terminal diagrams.
–
Connection unit,  6.5.1 "Terminal plan, connection component",
 39.