Viessmann Vitodens 222-F B2TA Installation And Service Instructions Manual page 66

Commissioning, inspection, maintenance
Further details regarding the individual steps
System version 2
One heating circuit with mixer M2 and a low loss header
1
1 Vitodens 222-F
2 Outside temperature sensor
3 Heating circuit with mixer M2 (heat-
ing circuit 2)
4 Temperature limiter to restrict the
maximum temperature of underfloor
heating systems
Function/system components
Operation with LPG
System with only one heating circuit with mixer and
DHW heating
System with DHW circulation pump:
DHW circulation pump connection at internal exten-
sion H1 or H2
System with low loss header
66
3
4
5
6
2
M
7
9
8
(cont.)
5 Flow temperature sensor M2
6 Heating circuit pump M2
7 Extension kit for one heating circuit
with mixer M2
8 Low loss header
9 Flow temperature sensor, low loss
header
Adjust
Code
Group
82:1 "General"
00:4 "General"
—
04:0 "Boiler"
—