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

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 8PSI the firing rate of the boiler is reduced. If the pressure drops to 4PSI 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
86
Section: Troubleshooting
Resist.
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
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