Viessmann Vitodens 333-F Service Instructions Manual page 35

Further details regarding the individual steps
System version 3
One heating circuit without mixer A1 and one heating circuit with mixer M2
1 Vitodens 333-F
2 Outside temperature sensor
3 Heating circuit without mixer A1
4 Heating circuit with mixer M2
5 Temperature limiter for limiting the
max. temp. of underfloor heating
systems
Note
The volume flow of the heating circuit without mixer must be at least 30%
greater than the volume flow of the heating circuit with mixer.
Required coding
Operation with LPG
Commissioning, inspection, maintenance
(cont.)
6 Flow temperature sensor M2
7 Heating circuit pump M2
8 Extension kit for one heating cir-
cuit with mixer M2
82:1
35