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GENERAL REMARKS
1.11
Water circuit
4 5
3
2
1
MI
Key
RI Heating return line
MI Heating delivery line
1
Degassing unit tap/boiler discharge
2
Heating pressure switch
3
Pressure transducer
4
Flow sensor
5
Safety thermostat
6
Heat exchanger
7
Return probe
8
Pressure gauge
9
Air vent valve
10 Circulator
Probes in the boiler
6
1
2
3
4
7
8
9
10
RI
Resistive values of the NTC probes with variations in the
temperature
Temperature °C
Tolerance test ±10%
12
Safety thermostat
NTC delivery probe
Flue gas probe
NTC return line probe
1
2
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
10000
30
8300
35
6924
40
5810
3
4
Resistance Ω
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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