Operating instructions

56
System extension
System with flue gas/water heat exchanger (cont.)
A Boiler with Vitotronic100
B Vitotrans333 (flue gas/water
heat exchanger)
C Circulation pump 
Vitotrans333
D Motorised butterfly valve
Vitotrans333
E Motorised boiler butterfly
valve
F Shunt pump
G Low temperature heating
circuit
H DHW cylinder
K Boiler circuit pump
L Three−way mixing valve
M Contactor relay,
part no.7814681
sÖA1 for circulation pump  flue
gas/water heat exchanger
(Vitotronic100)
Required coding:
Adjust on every Vitotronic100 with
Vitotrans333 "4C:3".
Circulation pump and motorised
butterfly valve  Vitotrans333
The circulation pump is started in
parallel to the burner.
Note
Arrange the system designs on site
so that output sÖ A1 must be used
as switching contact or heating
circuit pump connection.
5862730GB
L1 N
M
M
1~
NL1
K6
M
1~
sÖ A1
DC