Description of the device
Variomat 1 — 06.07.2016 – Rev. B English —
Description of the device
The Variomat VS 1 is a pump-controlled pressure maintaining, make-up and degassing station for heating and cooling water systems.
The Variomat is essentially a controller with pumps and at least one expansion tank. The expansion tank is fitted with a diaphragm to
divide the tank into an air space and a water space. preventing the ingress of atmospheric oxygen into the expansion water.
The Variomat VS 1 provides the following safety features:
• Optimisation of all pressure maintaining, degassing and make-up processes.
– No direct intake of air thanks to a regulation of the pressure maintenance with automatic make-up.
– No circulation issues caused by free bubbles in the circuit water.
– Reduced corrosion damage due to oxygen removal from fill and make-up water.
1 "VE" aeration and de-aeration
6 "PU" pump
2 "DV" degassing valve
7 "FD" feed and drain cock
3 "PIS" pressure transducer
8 "LIS" level sensor
4 "PV" overflow valve
WC Make-up connection
5 "WV" make-up valve EC Degassing connection
• Gas-rich water inlet
• Degassed water outlet
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