Reflex Variomat Touch VS 2-1/35 Originalbetriebsanleitung Seite 43

5 Control unit
WC Make-up pipe
PIS Pressure transducer
WV Make-up solenoid valve
ST Dirt trap
EC Degassing line
•
For gas-rich water from the system.
•
For degassed water into the system.
LIS Level sensor
District heating water is particularly suitable as make-up water.
•
Water treatment is not necessary.
• Use an "ST" dirt trap with a mesh size ≥ 0.25 mm for the make-up.

Note!
You require the approval of the district heating water supplier.
7.4.1.3 Use in a system with central return flow admixture
1 Heat generator
2 "MAG" expansion vessel
3 Primary vessel
4 Control unit
5 Reflex Fillsoft
6 Fillset Impuls
WC Make-up pipe
PIS Pressure transducer
WV Make-up solenoid valve
ST Dirt trap
EC Degassing line
•
For gas-rich water from the system.
•
For degassed water into the system.
LIS Level sensor
Make-up with water via a softening system.
•
Always integrate the device in the "V" main volume flow to ensure degassing
the system water. It is the system side in systems with central return flow
admixture or hydraulic switching points. The vessel of the heat generator
must be fitted with an individual protective device.
•
When using Reflex Fillsoft softening systems, always install the Fillset
Impulse.
–
The device controller evaluates the make-up quantities and signals a
required replacement of the softening cartridges.

Note!
The quality of the make-up water must comply with the applicable
standards such as VDI 2035.
7.5 Electrical connection
DANGER
Risk of serious injury or death due to electric shock.
If live parts are touched, there is risk of life-threatening injuries.
•
Ensure that the supply cable to the device is disconnected and secured
against being switched back on.
•
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 locally
applicable electrical engineering regulations.
For the electrical connection, you must differentiate between a connection
component and an operating component.
1 Connection component cover
(hinged)
2 Main switch
3 Operating unit cover (hinged)
•
•
The following descriptions apply to standard systems and are limited to the
necessary user-provided connections.
1. Disconnect the system from the power source and secure it against
unintentional reactivation.
2. Remove the covers.
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.
3. Insert a suitable screwed cable gland for the cable bushing at the rear of the
connection component. M16 or M20, for example.
4. Thread all cables to be connected through the cable glands.
5. Connect all cables as shown in the terminal diagrams.
–
6. Install the cover.
7. Connect the mains plug to the 230 V power supply.
8. Activate the system.
The electrical connection is completed.
Variomat Touch — 22.07.2024
4
5
6
RS-485 interfaces
Pressure and Level
outputs
DANGER Risk of serious injury or death due to electric shock. Some
For installer supplied fusing, comply with the connected loads of the
device ,  6 " Technical data ",  37.
Installation
Touch control
Connection component rear
Cable bushings
•
Supply and fusing
•
Floating contacts
• Pump connection "PU"
English — 43