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5
FRANÇAIS
ENGLISH
IT
ALIANO
NEDERLANDS
DEUTSCH
ELECTRICAL CONNECTIONS
The boiler is pre-cabled for the connection of the
CH circuit pump, mixer valve and mixed zone safety
thermostat.
Make the necessary electrical connections to the kit once
it is installed, referring to the wiring diagram below.
Circuit
pump
Mixer
valve
Mixed circuit
safety thermostat
ope
n
Y1
clos
e
Y2
BSB-
4p
BS
B
NA/
0-
10V
H1
CH 1 phase
Q2
QX1
QX1
Storage
cylinder phas
e
Q3
1st stag
e
L1
PE
PE
T1
T1
N
N
T2
T2
X
30-
10p
X3
0
L1
L1
S3
S3
N
N
CH 1 snsr
B1
BX
1
ground
M
Boiler snsr
B2
DHW 1 snsr
B3
Out. temp. snsr
B9
ground
M
BX
2
LP
B-
4p
LP
B
ground
M
X
50-
5p
X5
0
X
60-
6p
X6
0
LP
B
DB
ground
MB
L
L
PE
PE
S3
S3
4
4
SK
2
SK
2
SK
1
SK
1
N
N
N
N
N
N
N
N
PE
PE
PE
PE
PE
PE
PE
PE
M
M
M
M
M
M
M
M
CL
+
CL
+
CL
+
CL
+
CL
-
CL
-
CL
-
CL
-
G+
G+
SCH1
1
N
2
VMix
N
L1
PE
PI Mix
TS Mix
SCH1 Main board
PI Mix Mixed zone pump
VMix Mixer valve
TS Mix Mixed zone safety thermostat
b
The boiler’s main control board comes configured to control a low temperature mixed zone. Consult the boi-
ler’s operation and maintenance manual to make sure that the parameters for CH circuit 1 match the require-
ments of the actual installation.
Содержание Tau Unit Oil V70 240
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