Fig. 28: Connecting the pressure relief
line
V03 06/2025 Item no. 215250 EA no. 1292
Operating instructions
39
3.
NOTICE!
Damage due to excessive strain on the pipes!
To avoid subjecting the pipes to excessive tension, hold the
pipes in place and tighten the bolted connections using an
adjustable spanner.
ð The radiator lines have been connected.
Use the same procedure for the optional lower con-
nections. If filling is necessary, proceed in accord-
ance with Ä Chapter 7 ‘Preliminary commissioning’
on page 42.
Personnel:
n Heating and sanitary technician
Route and connect a pressure relief line to the discharge line of
the safety valve (Fig. 28).
In this regard, observe the country-specific regulations and
standards, e.g. EN 12828.
The heat interface unit has a discharge line that runs
from the safety valve to the lower edge of the unit.