2.3.1.3
Backflow preventer
The backflow preventer (
13) 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.
2.3.2
Safety equipment to be installed by the operator
The station is wired ready for connection and equipped with protec-
tive earth (PE). If the lines connected are metallic over their full
length, then equipotential bonding in accordance with DIN VDE 0100
must be provided on site.
The electrical circuit must be equipped with fuses in compliance with
local regulations. Furthermore, an electrical fuse exclusively for the
unit must be provided. This fuse must be clearly labelled. An easily
visible description of the location of the fuse must be affixed to the
unit.
The operator must ensure that the pressures permitted in the in-
house water system are complied with.
The station is equipped with a safety valve. The operator must ensure
that a pressure relief line is designed and installed in accordance
with technical regulations.
2.4
Residual risks
The unit is designed to be state-of-the-art and complies with all cur-
rent safety requirements. However, there are residual risks that make
caution necessary when using the unit. The residual risks and the
practices and measures they result in are listed in the following.
Fig.
5:
Backflow preventer
Station earth
Fuses for electrical circuit
Pressure limits
Pressure relief line
TACOTHERM FRESH PETA 2 / PETA 2 X
Safety
V02.2020 11/2020
Item no. 215747
EA no. 1329
Operating instructions
13
