Viessmann Vitocal 300-G BW, Installation And Service Instructions Manual

Page: 182 / 216

182
B
O
x
x
x
x
x
x
x
x
x
x
x
x
x
x
C
D
F
G
H
K
L
M
N
E
A
Note
The total output of all connected appli-
ances must not exceed 1000 W. If the
total output
≤
1000 W, the individual rat-
ing of a component can be greater than
specified.
A Connection, safety chain (part 1),
see page 180
B Switched phase
C Control of external heat source
D Instantaneous heating water heater
control (stage 2)
E
Control module, instantaneous
heating water heater (see page 72)
F Control signal Active cooling (AC)
G Mixer
|
OPEN, external heat
source
H Mixer
~
CLOSE, external heat
source
K Heating circuit pump, direct heating
circuit A1
L Circulation pump for cylinder heat-
ing
M Auxiliary output with switching times
(e.g. DHW circulation pump)
N Central fault message
O Connection, control circuit (part 2),
see page 183
Connection and wiring diagrams
Control circuit (part 1)
5368 522 UAE