5.6 Wiring diagram
16
278
191
186
fig. 37 - Wiring diagram
Key fig. 37
16
Fan
32
Heating circulating pump
44
Gas valve
72
Room thermostat (not supplied)
72b
Second room thermostat (not supplied)
81
Ignition electrode
82
Detection electrode
95
Diverter valve (not supplied)
A = Heating phase
B = DHW phase
C = Neutral
NOTE: For valves with 2 wires and spring return, use the connections B and C
98
Switch
114
Water pressure switch
130
DHW circulating pump (not supplied)
138
External probe (not supplied)
139
Remote timer control (not supplied)
155
Hot water tank temperature probe (not supplied)
186
Return sensor
191
Fume temperature sensor
256
Modulating heating circulating pump signal
278
Double sensor (Safety + Heating)
298
Cascade temperature sensor (not supplied)
299
Input 0-10 Vdc
300
Burner lit contact (voltage-free contact)
301
Fault contact (voltage-free contact)
302
Remote reset input (230 Volt)
306
Heating system circulating pump (not supplied)
307
Heating system second circulating pump (not supplied)
48
EN
81
82
44
DBM12KA
V1
V2
X1
32
X3
16
98
114
X2
FUSE
3.15A
230V
50Hz
L
N
X01
X04
cod. 3540S560 - 03/2009 (Rev. 00)
ECONCEPT 51 A
306
130/307
4
5 6
7
8
9
10
11 12
(
( (
(
A
B
C
300
301
302
95
13 14 15 16
17 18 19 20 21 22 23 24
25 26 27 28
29 30
72
138
298
72B
155
299
139
X03
X05
DSP12A
31 32
OUT
GND
256