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Water circuit
1.8
POWER EVO-X 50 DEP - 50
4 5
3
2
1
MI
POWER EVO-X 65 - 80
9
5
4
8
3
2
1
MI
Key
RI Heating return line
MI Heating delivery line
Degassing unit tap/boiler discharge
1
Heating pressure switch
2
3
Pressure transducer
Flow sensor
4
Safety thermostat
5
Heat exchanger
6
Return probe
7
Pressure gauge
8
Air vent valve
9
10 Circulator
6
7
8
9
10
RI
6
7
10
RI
13
Probes in the boiler
Safety thermostat
1
NTC delivery probe
2
Flue gas probe
3
NTC return line probe
4
POWER EVO-X 50 DEP - 50
1
2
POWER EVO-X 65 - 80
1
2
Resistive values of the NTC probes with variations in the temperature
Temperature °C
Resistance Ω
Tolerance test ±10%
-20
67523
-15
53254
-10
42291
-5
33808
0
27700
5
22290
10
18070
15
14740
20
12110
25
10 000
30
8300
35
6924
40
5810
3
4
3
4
Temperature °C
Resistance Ω
Tolerance test ±10%
45
4896
50
4147
55
3525
60
3011
65
2582
70
2224
75
1922
80
1668
85
1451
90
1267
95
1110
100
975
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