Pos. Title Number Part no.
6
In conjunction with the Vitotronic 200-H:
Immersion temperature sensor (Viessmann NTC) as cylinder temperature sensor
1 7438 702
7
Feed pump (distributor) subject to system on site
Sample application 3 – Vitocell 100-L with Vitotrans 222 and constant flow temperatures
A
Power supply connection 230 V~ 50 Hz; install a mains isolator in
accordance with regulations
B
Heating circuit pump (primary), highly efficient
C
Cylinder loading pump (secondary), highly efficient
D
Flow distributor (under pressure)
E
Return collector
Cylinder heating will be initiated by the upper temperature controller.
The lower temperature controller terminates cylinder heating.
You can select the temperature at the temperature controller.
Example:
Max. 55 ºC ON, 50 ºC OFF (at heating temperature 60 ºC).
Install a motorised valve in the flow line when connecting the Vitotrans
222 heat exchanger set for constant flow temperatures without mixer
assembly to a flow distributor (under pressure) (boiler with heating cir-
cuit pump to distributor). The motorised valve will be closed during non-
heating periods, preventing a forced flow through the Vitotrans 222
during such times.
Required components
Pos. Title Number Part no.
1
Vitocell 100-L, 500 l (shown), or subject to system Z002 074
Vitocell 100-L, 750 l, or subject to system Z004 042
Vitocell 100-L, 1000 l subject to system Z004 043
2
Vitotrans 222
– up to 80 kW 1 7453 039
– up to 120 kW 1 7453 040
– up to 240 kW 1 7453 041
3
Junction box 1 on site
4
Contactor relay
*17
1 7814 681
5
Temperature controller 2 7151 989
6
Motorised valve
*17
1 on site
*17
Only required for pressurised flow distributors.
Installation — cylinder loading system
(cont.)
48
VIESMANN
DHW heating
7
5414 646 GB
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