11
Connections on the multi mode heat-
ing water buffer cylinder
D
E
H
B
FG
L
K
MN
A
P
C
O
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
H
Temperature sensor B42
K
Heating water return, heating circuit
L
Cold water
M
Heating water return,
Vitotwin 300-W
N
Temperature sensor B41
O
N/A
P
N/A
■ To install temperature sensor B4
G
,
fit the supplied connection elbow to
F
.
■ To install temperature sensor B41
N
,
fit the supplied connection elbow to
M
.
Preparing for installation
Preparing for installation
(cont.)
5618 294 GB
Installation
Summary of Contents for C3HA
Page 39: ...39 2 2x 1 Installation sequence Removing the front panel 5618 294 GB Installation ...
Page 42: ...42 1 2 Installation sequence Removing the transport brackets 5618 294 GB ...
Page 151: ...151 Checking and replacing resistors B C A Troubleshooting Repairs cont 5618 294 GB Service ...
Page 181: ...181 Parts lists Control unit assembly cont 5618 294 GB Service ...
Page 183: ...183 Parts lists Miscellaneous assembly cont 5618 294 GB Service ...
Page 191: ...191 5618 294 GB ...