Overview Of Internal Components: Indoor Unit - Viessmann Vitocal 200-A Installation And Service Instructions Manual

Maintenance

Overview of internal components: Indoor unit

N
M
L
Fig. 63
Type AWO(-M)-E/AWO(-M)-E-AC only:
A
High limit safety cut-out (STB), instantaneous
heating water heater
Quick-action air vent valve G
B
Type AWO(-M)-E/AWO(-M)-E-AC only:
C
Instantaneous heating water heater
Secondary circuit flow temperature sensor (F8)
D
3-way diverter valve "central heating/DHW heat-
E
ing"
76
A
K
⅜
B
C
D
E
F
G
H
Secondary circuit return temperature sensor (F9)
F
Secondary pump
G
Secondary circuit drain & fill valve
H
Safety valve
K
Pressure gauge
L
M Flow switch
Drain valve
N