Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 11

Preparing for installation
Connections on the multi mode heat-
ing water buffer cylinder
(cont.)
Connection assignment in conjunction
with the Vitotwin 300-W
A Air vent valve
B DHW
C Temperature sensor B3
D Heating water flow, Vitotwin 300-W
E N/A
F Heating water flow, heating circuit
G Temperature sensor B4
A
H Temperature sensor B42
K Heating water return, heating circuit
B
L Cold water
M Heating water return,
Vitotwin 300-W
N Temperature sensor B41
O N/A
C
P N/A
D
E
■ To install temperature sensor B4 G,
fit the supplied connection elbow to
F.
FG
■ To install temperature sensor B41 N,
H
fit the supplied connection elbow to
K
M.
L
M N
O
P
Preparing for installation
11