Reflex Variomat, Original Operating Manual

Page: 14 / 30

Installation
14 — English Variomat Basic — 22.07.2020 - Rev.
A
7.4 Switching and make-up variants
7.4.1 Function
The current filling level is recorded in the primary tank by the "LIS" level
sensor and evaluated in the controller. The value for the minimum
filling level is specified in the controller's Customer menu. If the level
drops below the defined minimum, the "WV" make-up valve opens and
fills the primary tank.

Note!
To complete the make-up function from the drinking water
system, Reflex offers the Fillset with integrated system separator
and Fillsoft softening equipment, see chapter 4.6 "Optional
equipment and accessories" on page 5 .
7.4.1.1 Using a single-tank system
1 Heat generator
2 "MAG" expansion vessel
3 Primary vessel
4 Control unit
5 Reflex Fillset
ST Dirt trap
WC Make-up pipe
PIS Pressure transducer
WV Make-up solenoid valve
EC Degassing line
• For gas-rich water from the system.
• For degassed water into the system.
LIS Level sensor
Single boiler system ≤ 350 kW, water temperature < 100 °C.
• Connect the Reflex Fillset with integrated system separator
upstream when using mains water for make-up.
• If you don't connect a Reflex Fillset upstream, use an "ST" dirt trap
with a mesh size ≥ 0.25 mm for the make-up.

Note!
The quality of the make-up water must comply with the
applicable standards such as VDI 2035.
– If you cannot achieve this quality, use the Reflex Fillsoft to
soften the make-up water from the mains water network.
7.4.1.2 Using a district heating substation
1 District heating house substation
2 Primary vessel
3 "MAG" expansion vessel
4 Site-provided make-up unit
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.