Viessmann VITOCELL 140-E Installation And Service Instructions Manual page 36

Connections on the heating water side
Connections on the heating water side
Adjust the temperature controller and the high limit
■
safety cut-out so that the heating water temperature
in the heating water buffer cylinder does not
exceed 110 °C.
■ Connect all pipework with detachable fittings.
Permissible temperatures
Solar side
Heating water side
Permissible operating pressure
Solar side
Heating water side
Test pressure
Solar side
Heating water side
Connecting the equipotential bonding
Connect the equipotential bonding in accordance with
TAR medium voltage VDE-AR-N-4100 of the local
power supply utility and VDE regulations.
36
Note
For the position of the connections, see page 7.
1. Install the flow lines with a rise. Fit an air vent valve
at the highest point.
2. Install the heat supply control unit.
140 °C
3. If not present, install a type-tested high limit safety
110 °C
cut-out in the system. For this, use a TR/STB com-
bination device (temperature limiter and high limit
safety cut-out).
10 bar
(1.0 MPa)
4. Tightly seal any connections that are not required.
3 bar
(0.3 MPa)
16 bar
(1.6 MPa)
4.8 bar
(0.48 MPa)