6.7.10 Electrical connection: Boilers in c 1 direct circuit
+ 1 underfloor heating c 1 domestic hot water tank
Fig.63
Boilers in c 1 direct c 1 underfloor heating c 1 domestic hot water tank
1
2
3
4
A
ux 1-2 230 V
TA
TS
L
N
T1
T2
L
L
N
N
S1
S2
L
N
1
2
3
4
A
ux 1-2 230 V
TA
TS
L
N
T
1
T
2
L
L
N
N
S1
S2
L
N
MW-3000040-06
167
200
201
167
158
10
2
44
34
34
26
11
21
38
33
38
AVS75
OCI345
OCI345
1 2 3
1 2 3
2 Heating pump
10 Three-way mixing valve
11 Heating pump
21 Outside temperature sensor
26 DHW load pump
33 Domestic hot water temperature sensor
34 Primary pump
38 Room temperature sensor
44 Safety device to safeguard against overheating of
the underfloor heating system, in accordance with
prevailing regulations
158 Flow temperature sensor
167 Boiler control panel
200 Lead boiler
201 Slave boiler
6 Installation
7609493 - v08 - 24072018
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