Cold water
Inlet
Outlet
Flow
R
eturn
Boiler
Drain and
feed cock
Connection variations system fill-up
This connection variation is suitable for directly filling heaters with demineralised water.
This connection variety is not suitable for area heating systems that can only be deaerated through purg-
ing. The delivery rate of the ion exchanger is not sufficient enough to purge air from a horizontal line. In
these cases, we recommend fill-up with untreated water and subsequently demineralise via a cleaning
system (see following page).
The inlet for untreated water is under the connection of the apparatus valve, the outlet for the deminera-
lised water for the heating system is on top on the other side of the safety sieve.
The apparatus contains a non-return valve. When the connections are turned, the untreated water can-
not flow through the apparatus.
In the DIN EN 1717 (Germany) field of application, a pipe disconnector must also be installed
before the fill-up station. Follow the guidelines from the water supply company.
PUROTAP contains mechanisms for automatic stop. If the system fill-up is not constantly moni-
tored, then a pressure-reducing valve needs to be installed so that the heating system is not
damaged by over pressure at the end of fill-up.
PUROTAP easy may only be under pressure for the duration of filling.
Temp. max. 60 °C, pressure max. 6 bar.
7 EN
