27
ECONCEPT 100
4.5 Wiring diagram
Key
16
Fan
32
Heating circulating pump
34
Heating temperature sensor
44 Gas
valve
49
Safety thermostat
82
Detection electrode
83 Electronic
controller
98 Switch
101 Electronic
board
114
Water pressure switch
175 Transformer
220-240/300-330V
186 Return
sensor
188 Ignition
electrode
204 PC
connector
251 Cooling
fan
Fig. 17
1
3
1
2
15
14
12
11
10
8
7
6
5
4
1
2
4
5
6
7
8
10
11
12
24 V DC + Freq. PWM Output
24 V DC -
3
2
1
24 V
AC
24 V
AC
X2
X1
13
14
15
X5
X6
(4) N
(5) R2
(6) HL
(9) HL
(10) HD
(11) R1
(12) L
X10
X11
PC
3
2
X3
X4
1
2
3
7
8
11
12
S4575B 1041
12
11
10
8
7
5
4
2
1
9
6
Resistance 1,8 k
W
-
-
-
DMF04
4
5
6
9
10
L
N
N
L
230V
50Hz
LOW VOLTAGE
12
11
10
9
8
7
6
5
4
3
2
1
X7
-
-
-
1
3
1
2
15
14
12
11
10
8
7
6
5
4
1
2
4
5
6
7
8
10
11
12
N
L
24 V DC + Freq. PWM Output
24 V DC -
3
2
1
24 V
AC
24 V
AC
X2
X1
13
14
15
X5
X6
(4) N
(5) R2
(6) HL
(9) HL
(10) HD
(11) R1
(12) L
X10
X11
PC
3
2
X3
X4
1
2
3
7
8
11
12
S4575B 1041
12
11
10
8
7
5
4
2
1
9
6
-
-
-
DMF04
4
5
6
9
10
L
N
N
L
230V
50Hz
12
11
10
9
8
7
6
5
4
3
2
1
X7
-
-
N L
98
98
Resistance 1,8 k
W
-
1
2
3
4
5
6
7
8
9
10
11
12
1
2
16
32
114
204
34
188
82
83
49
175
186
188
82
83
49
175
186
16
114
204
34
101
101
44
44
32
251
L
N T
1
T
2
S
3
LOW
VOLTAGE
Resistance
10 k
W
Resistance
10 k
W
Operation enablin
signal
External sensor
Sequence adj.
connection
(OpenTherm)
Operation enablin
signal
External sensor
Sequence adj.
connection
(OpenTherm)
