Viessmann FB2B Installation And Service Instructions Manual page 54

Commissioning, inspection, maintenance
Further details regarding the individual steps
Function/system components
DHW circulation pump connection at extension AM1,
terminal A2
System with low loss header
System version 3
One heating circuit without mixer A1 and one heating circuit with mixer M2
wQ
wP
1 Vitodens 242-F
2 Outside temperature sensor
3 Heating circuit without mixer A1
4 Heating circuit with mixer M2
5 Temperature limiter for limiting the
maximum temperature of underfloor
heating systems
54
3
2
1
6 Flow temperature sensor M2
7 Heating circuit pump M2
8 Extension kit for one heating circuit
with mixer M2
wP Solar collectors
wQ Collector temperature sensor
(cont.)
Code
Adjust Delivered con-
dition
— 34:0
04:0 04:1
4
5
6
7
M
8