Max. transferable heating output of the heat-
ing circuit with mixer (ΔT 10 K)
kW
14
Max. flow rate of the heating circuit with mixer
(ΔT 10 K)
l/h
1200
Permiss. operating pressure
bar
MPa
3
0.3
Max. power consumption
W
48
Connections (male thread)
– Gas
R
½
– Heating water
R
¾
– DHW
R
½
– Solar
R
Ø
mm
¾
22
Weight (incl. packaging)
kg
20
Residual head of the integral circulation pump for the heating circuit with mixer
0
100
200
300
400
500
0
10
20
30
40
50
kPa
600 60
300 400 500 600 700 800 900 1000 1100 1200
Flow rate in l/h
1300 1400
200
100
0
Min.
Max.
Residual
head
mbar
Calculating the transferable heating output (examples)
The max. heating output that can be transferred via the plate heat
exchanger of the assembly kit is 14 kW. To achieve balanced flow
rates between the regulated heating circuit (assembly kit) and the
unregulated heating circuit (radiator heating circuit), the pressure
drop in the assembly kit must be increased.
For this, the line regulating valve with flow indicator (available as an
accessory) can be fitted to the primary side of the plate heat
exchanger, i.e. between the flow and return. The nominal circulating
water volume of the boiler (see specification), minus the flow rate
through the plate heat exchanger of the assembly kit, results in the
flow rate of the unregulated heating circuit.
Example:
Vitodens 242-F, 1.9 - 19 kW
■ Nominal circulating water volume at ΔT 20 K: 818 l/h
■ Heating output for regulated heating circuit (assumed): 13 kW
■ Resulting flow rate, primary side, plate heat exchanger at ΔT 20 K:
560 l/h (to be set via the line regulating valve)
■ Flow rate of the unregulated heating circuit: 818 l/h – 560 l/h =
258 l/h
Safety assembly to DIN 1988
Comprising:
■ Shut-off valve
■ Non-return valve and test connector
■ Pressure gauge
■ Diaphragm safety valve
For on-site surface mounting (DN 20)
■ 10 bar (1 MPa)
Part no. 7180662
Heat transfer medium Tyfocor LS
Part no. 7159727
■ 25 l in a disposable container
■ Ready-mixed for temperatures down to -28 °C
■ Tyfocor LS can be mixed with Tyfocor G-LS.
Connection set for external heating water expansion vessel
Part no. 7301709
Expansion vessel connection: R ½
Automatic thermostatic mixing valve
For integration in hot water systems
without
DHW circulation pipe
Part no. 7438940
Installation accessories
(cont.)
VITODENS
VIESMANN
83
5853906
7
Summary of Contents for Vitodens 200-W B2HE
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