Viessmann VITODENS 242-F Technical Manual page 45

Installation accessories
D Output range of the heating circuit without mixer with line regu-
lating valve
E Example
Calculating the transferable output (examples)
■ Vitodens, 19 kW. Supplying the heating circuit without mixer through
the internal circulation pump in the Vitodens.
1.1. Apply the output of the heating circuit with mixer to the horizontal
axis (example: 10 kW).
1.2. Extend the line vertically down to lower curve B.
1.3. Transfer the intersection horizontally to the l.h. vertical axis, and
read off the transferable output of the heating circuit without
mixer.
The example results in approx. 5.4 kW.
■ Vitodens, 19 kW. Supplying the heating circuit without mixer through
an additional external circulation pump in the heating circuit.
Note
This diagram applies only if the additional circulation pump has been
correctly sized.
1.1. Apply the output of the heating circuit with mixer to the horizontal
axis (example: 10 kW).
1.2. Extend the line vertically up to upper curve B.
1.3. Transfer the intersection horizontally to the r.h. vertical axis, and
read off the transferred output of the heating circuit without
mixer.
The example results in approx. 9 kW.
Connection set, DHW circulation pump
Part no. 7351 819
For installation in the Vitodens.
Comprising:
■ High efficiency DC pump
■ Flow regulating valve
■ Pipe assembly including thermal insulation
Note
An additional AM1 or EA1 extension is required for connection to the
Vitotronic.
Safety assembly to DIN 1988
DN 15
Comprising:
■ Shut-off valve
■ Non-return valve and test connector
■ Pressure gauge (part no. 7219 722 and 7265 023)
or
Pressure gauge connector (part no. 7351 842 and 7351 840)
■ Diaphragm safety valve
For on-site installation on finished walls
VITODENS
(cont.)
■ 10 bar
■ a 6 bar
For installation on unfinished walls in conjunction with the con-
nection set
■ 10 bar
■ a 6 bar
Valve/fittings cover
Part no. 7352 257
For connection set for installation on unfinished walls.
Not for use in conjunction with filling facility.
Filling facility with pipe separator
For fitting to the connection sets.
■ For installation on finished walls (not for downward connection on
■ For downward connection on unfinished and finished walls
Balancing valve solar
For integration in the Vitodens 242-F
Part no. 7356 993
Part no. 7219 722
Part no. 7265 023
Part no. 7351 842
Part no. 7351 840
finished walls)
Part no. 7356 492
Part no. 7356 902
5
VIESMANN
45