Viessmann VITODENS 222-F Installation And Service Instructions Manual page 55

Further details regarding the individual steps
System version 5
One heating circuit without mixer, one heating circuit with mixer M2 (with
extension kit), one heating circuit with mixer M3 (with extension kit) and low
loss header (with/without DHW heating)
1 Vitodens 222-F
2 Outside temperature sensor
3 Heating circuit without mixer A1
(heating circuit 1)
4 Heating circuit pump A1
5 Heating circuit with mixer M2 (heat-
ing circuit 2)
6 Flow temperature sensor M2
7 Heating circuit pump M2
8 Extension kit for one heating circuit
with mixer M2
9 Heating circuit with mixer M3 (heat-
ing circuit 3)
Commissioning, inspection, maintenance
(cont.)
M
qP Temperature limiter for limiting the
maximum temperature of underfloor
heating systems
qQ Flow temperature sensor M3
qW Heating circuit pump M3
qE Extension kit for one heating circuit
with mixer M3
qR Low loss header
qT Flow temperature sensor, low loss
header
M
55