System Extension - Viessmann VITOTRONIC 100 Installation And Service Instructions Manual

DHW heating with a cylinder storage system
Only in conjunction with single boiler systems
B
A Boiler with Vitotronic 300
B Vitocell−L 300
C Vitotrans 222
Possible applications
In systems with temporarily high
DHW demand and large cylinder
capacity with offset heating and
draw−off times.
28
5
21 17B 52 20
A1 A1
C
Plug
%
aJB Temperature sensor
sÖ A1 Primary pump
sA
sK
gS A1 Motor for three−way mixing

System extension

A
Terminals 1 and 2:
Cylinder temperature
sensor 1 (top)
Terminals 2 and 3:
Cylinder temperature
sensor 2 (bottom)
Vitotrans 222
Secondary pump
DHW circulation pump
valve
53