ENERGY KINETICS EK1C, Installation & Service Manual

Page: 52 / 75

Accel CS Boiler - Gas Heat - Eighth Edition – January, 2015
51
TEMPERATURE SENSORS
The Sola control uses thermistors to measure temperatures. The Sola will measure and display:
•
boiler supply temperature (Outlet temp)
•
boiler return temperature (Inlet temp)
•
flue gas temperature (Stack temp)
•
outdoor temperature (Outdoor temp)
The user interface display uses the words shown above in parenthesis as the label for each of the four temperatures.
Common industry terms are used throughout this manual, such as boiler supply temperature, and the user interface display
uses its own set of terms. As you read the manual, please keep in mind either type of term may be used.
The thermistors are 10K thermistors, where the sensor will measure 10,000 ohms when the sensor is at 77 degrees
Fahrenheit. The following tables show the resistance in ohms of the sensors at various temperatures. If any sensor is
more than 20 degrees F off, it should be replaced.
Thermistor Resistance in Ohms at Various Temperatures in Fahrenheit.
0 1 2 3 4 5 6 7 8 9
40 26109 25400 24712 24045 23399 22771 22163 21573 21000 20445
60 15314 14925 14548 14180 13823 13477 13140 12812 12494 12185
70 11884 11592 11308 11032 10763 10502 10248 10000 9760 9526
80 9299 9078 8862 8653 8449 8250 8057 7869 7685 7507
100 5827 5697 5570 5446 5326 5208 5094 4982 4873 4767
120 3758 3679 3602 3527 3453 3382 3312 3244 3177 3112
140 2488 2439 2391 2344 2298 2253 2209 2166 2124 2083
160 1688 1656 1625 1595 1566 1537 1509 1481 1454 1427
180 1170 1150 1129 1110 1090 1071 1053 1035 1017 999
200 828 814 801 788 775 762 749 737 725 713
Thermistor Resistance in Ohms at Various Temperatures in Celsius.
0 1 2 3 4 5 6 7 8 9
0 32648 31026 29495 28049 26682 25389 24166 23010 21915 20879
10 19898 18968 18088 17253 16461 15710 14998 14322 13680 13071
20 12492 11942 11419 10922 10450 10000 9572 9165 8778 8409
30 8057 7722 7403 7099 6808 8532 6268 6016 5775 5546
40 5327 5117 4917 4726 4543 4368 4201 4042 3889 3742
50 3602 3468 3340 3217 3099 2986 2878 2774 2675 2579
60 2488 2400 2316 2235 2157 2083 2011 1942 1876 1813
70 1752 1693 1637 1582 1530 1480 1432 1385 1340 1297
80 1256 1216 1177 1140 1105 1070 1037 1005 974 944
90 916 888 861 835 810 786 763 741 719 698