BlueHelix ALPHA C
316
EN
cod. 3541U152 - Rev. 01 - 04/2021
4.6 Wiring diagram
16
Fan
32
Heating circulating pump
34
Heating temperature sensor
42
DHW temperature probe
44
Gas valve
72
Room thermostat (not supplied)
81
Ionization/ignition electrode
95
Diverter valve
114
Water pressure switch
136
Flowmeter
138
External probe (optional)
139
Remote timer control (optional)
186
Return sensor
191
Fume temperature sensor
288
Frost protection kit
A
ON/OFF switch (configurable)
fig. 45- Wiring diagram
A
Attention
: Remove the jumper on the terminal block before connecting the
room thermo-
stat
or the
remote timer control
.
To connect multiple zones of the plumbing system controlled by thermostats with voltage-
free contact and there is a need to use the timer control as a function of remote boiler con-
trols, it is necessary to connect the voltage-free contacts of the zones to terminals 1-2 and
the timer control to terminals 5-6.
ALL CONNECTIONS TO THE TERMINAL BLOCK MUST BE WITH VOLTAGE-FREE
CONTACTS (NOT 230V).
X04
X03
X02
X01
X16
X05
X07
X08
X09
1
8
1
9
1
14
1
7
1
9
1
5
X11
X01-1
X01-2
X08-1
1
X08-10
X08-14
X08-12
X08-13
X07-1
X07-2
X08-1
X08-2
X08-7 X08-6
X08-5 X08-4
X08-9 X08-8
LC32
114
34
42
16
44
191
136
95
186
X01-3
X01-4
X01-5
X01-6
X01-7
X04-7
X04-6
X04-5
X05-4
X05-3
X05-2
X05-1
32
81
X04-8
X04-9
X04-1
230V
50Hz
1234
5
6
GROUND
A
138
288
N
L
X04-3
72
139