50
System version 3
One heating circuit without mixer A1 and one heating circuit with mixer M2
M
3
4
5
6
7
8
1
2
1
Vitodens 222-F
2
Outside temperature sensor
3
Heating circuit without mixer A1
(heating circuit 1)
4
Heating circuit with mixer M2 (heat-
ing circuit 2)
5
Temperature limiter for limiting the
maximum temperature of underfloor
heating systems
6
Flow temperature sensor M2
7
Heating circuit pump M2
8
Extension kit for one heating circuit
with mixer M2
Note
The flow rate of the heating circuit with-
out mixer must be at least 30 % greater
than the flow rate of the heating circuit
with mixer.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5457 552 GB