Connections On The Heating Water Side - Viessmann Vitocell 140-E Installation And Service Instructions For Contractors

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 heat-
ing 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:
Note
For connection locations, see page 9.
1. Install the flow lines with a rise. Fit an
air vent valve at the highest point.
2. Install the heat supply control unit.
3. If the system does not already have
one, also install a type-tested high
limit safety cut-out. For this, use a
combination device TR/STB (temper-
ature limiter and high limit safety cut-
out).
4. Seal all unused connections with
plugs or caps.
140 °C
110 °C
10 bar
(1.0 MPa)
3 bar
(0.3 MPa)
16 bar
(1.6 MPa)
4.8 bar
(0.48 MPa)
Installation sequence
41