Description of the device
Variomat 1 — 06.07.2016 – Rev. B
English — 11
4.4
Function
1
Heating system
WV Make-up valve
2
"MAG" pressure expansion tank
PIS
Pressure sensor
3
Reflex Fillset Impulse, see chapter 4.6 "Optional
equipment and accessories" on page 13 .
PV
Overflow valve (motor ball valve)
4
Control unit
PU
Pump (pressure maintenance)
5
Hydraulic inlets
•
For gas-rich water
•
For degassed water
SV
Safety valve
6
Primary tank air space
EC
Expansion line
•
For gas-rich water
•
For degassed water
7
Secondary tank air space
FD
Feed and drain cock
ST
Dirt trap
LIS
Pressure load cell
FQIRA+ Contact water meter
DV
Degassing valve
WC
Make-up line
VE
Ventilation
The device is a pressurisation station for heating and cooling water systems. It is used for maintaining pressure, making-up and
degassing the water in heating and cooling systems. It comprises a control unit consisting of a controller with hydraulics and at least
one expansion tank.
Expansion tank
One primary tank and multiple optional secondary tanks may be connected. A diaphragm separates the tanks into an air and a water
space, preventing the penetration of atmospheric oxygen into the expansion water. The "VE" line connects the air space with the
atmosphere. The primary tank is hydraulically flexibly connected to the control unit. The function of the "LIS" level measuring using a
pressure pick-up is thus ensured.
Summary of Contents for Variomat VS 1
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