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GENERAL INFORMATION
1.10 Water circuit
1
6
7
8
5
3
2
4
10
11
RI
MI
1
Heat exchanger
2
Pump (only for "P" models)
3
Drain cock
4
Minimum pressure switch
5
NTC return probe
6
NTC delivery probe
7
Safety thermostat temperature sensor
8
Automatic bleed valve
9
Flow-meter
10
Water return manifold
11
Water flow manifold
Values of NTC probes' resistors with changing temperatures.
Temperature °C
Resistor Ω
Tolerance test ±10%
-40
191908
-35
146593
-30
112877
-25
87588
-20
68471
-15
53910
-10
42739
-5
34109
0
27396
5
22140
10
17999
15
14716
20
12099
25
10000
30
8308
35
6936
40
5819
1
6
7
8
5
9
9
3
2
RI
MI
MI
Central heating flow
RI
Central heating return
Temperature °C
Resistor Ω
Tolerance test ±10%
45
4904
50
4151
55
3529
60
3012
65
2582
70
2221
75
1918
80
1663
85
1446
90
1262
95
1105
100
970
105
855
110
755
115
669
120
594
125
529
18
1.11
Positioning the temperature sensors
Probes placed on the related sockets of the thermal module:
1
Exhaust flue probe
2
Safety thermostat
3
CH flow temperature sensor
4
Return probe
4
Left view
GENERAL INFORMATION
3
2
1
Right view
19
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