Taconova TACOTHERM FRESH PETA 2, Руководство по эксплуатации

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3.3.1.4 Air bleed valve
The air bleed valve (Fig. 11) is used for bleeding and ventilation when
filling or draining the station and the pipe networks connected.
3.3.1.5 Backflow preventer
The backflow preventer ( Ä
on page 26) is installed in the screw con-
nection for the pump. It prevents incorrect circulation and is inte-
grated into the pump connections as an insert.
3.3.2 Secondary circuit
3.3.2.1 Safety DCW valve (Option)
The safety DCW valve (Fig. 13) depressurises the station in the event
of excess pressure on domestic cold/hot water site. The safety valve
is calibrated for a pressure of 10 bar and does not need to be set
during commissioning.
A pressure relief line must be connected to the safety valve during
installation (
Ä
Chapter 5.3.2 ‘Connecting the pressure relief line to
the safety valve’ on page 36).
Fig. 11: Air bleed valve for hot water
Fig. 12: Backflow preventer
Fig. 13: Safety DCW valve
TACOTHERM FRESH PETA 2 / PETA 2 X Functional description
V02.2020 11/2020 Item no. 215747 EA no. 1329 Operating instructions 26