Fan; Water Pressure Sensor - IBC Sl Series Installation & Operating Manual

Residential condensing boiler
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Temp. °F/°C
0 / -18
5 / -15
10 / -12
15 / -9
20 / -7
25 / -4
30 / -1
35 / 2
40 / 4
45 / 7
50 / 10
55 / 13
60 / 16
65 / 18
70 / 21
75 / 24
80 / 27
85 / 29
90 / 35
95 / 35
Table 12
Temperature sensor resistance values - 10K ohms

8.1.2 Fan

The fan is controlled via the SIM+ control. The SIM+ provides electronic commutating power to
the fan motor coilers determining the fan speed and power usage.

8.1.3 Water pressure sensor

The water pressure sensor ensures that there is adequate pressure in the heating system for
safe operation. The pressure is displayed in PSI as the default. If the system pressure should
drop below 8 PSI the firing rate of the boiler is reduced. If the pressure drops to 4 PSI or lower, the
boiler will not fire.
Resist.
Temp. °F/°C
Ω – Ohm
85,362
72,918
62,465
53,658
42,218
39,913
34,558
29,996
26,099
22,763
19,900
17,436
15,311
13,474
11,883
10,501
9,299
8,250
7,334
6,532
90
Section: Troubleshooting
Ω – Ohm
100 / 38
105 / 41
110 / 43
115 / 46
120 / 49
125 / 52
130 / 54
135 / 57
140 / 60
145 / 63
150 / 66
155 / 68
160 / 71
165 / 74
170 / 77
175 / 79
180 / 82
185 / 85
190 / 88
195 / 91
Resist.
5,828
5,210
4,665
4,184
3,760
3,383
3,050
2,754
2,490
2,255
2,045
1,857
1,689
1,538
1,403
1,281
1,172
1,073
983
903

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Sl 10-85 g3Sl 14-115 g3Sl 20-160 g3Sl 30-199 g3

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