Thermistor Resistance Chart
MODELS: ALL R410a INDOOR UNITS MODELS: ALL R410a OUTDOOR UNITS
Temp. °F (°C)
Room Temperature
Thermistor
Room Temperature
Thermistor w/
board
Indoor Pipe
Thermistor
Indoor Pipe Therm-
istor w/ board
Discharge Therm-
istor
Compressor
Thermistor
Outdoor Pipe
Thermistor
Outdoor Tempera-
ture Thermistor
Heat Sink Therm-
istor
2/3 Way Valve
Thermistor
Ohms kΩ Ohms kΩ Ohms kΩ Ohms kΩ Ohms kΩ Ohms kΩ Ohms kΩ Ohms kΩ Ohms kΩ Ohms kΩ
-15 (26) 829.82 783.48 71.84 172.03 71.84 866.9
-6 (21) 601.26 569.61 52.63 123.77 52.63 622.7
-4 (-20) 590.69 531.56 49.2 115.24 49.2 579.59
0 (-17) 488.46 463.75 36.58 100.09 43.07 503.06
5 (-15) 412.49 392.31 36.58 84.21 36.58 422.89
14 (-10) 307.02 292.91 27.51 62.28 27.51 312
23 (-5) 231.05 221.09 20.91 46.58 20.91 233
32 (0) 33.62 8.29 176.03 39.48 175.7 168.6 16.05 35.21 16.1 176
41 (5) 25.93 134.23 134.93 129.84 12.44 26.88 12.4 134
50 (10) 20.18 7.12 103.34 34.1 104.59 100.91 9.73 20.72 9.73 103
59 (15) 15.84 80.28 81.79 79.12 7.67 16.12 7.67 80.3
68 (20) 12.54 5.86 62.91 28.14 64.5 62.55 6.1 12.64 6.1 62.9
77 (25) 10 5.24 49.7 25.15 51.27 49.84 4.89 10 4.89 49.7
86 (30) 8.04 4.64 39.57 22.26 41.07 40.01 3.95 7.97 3.95 39.6
95 (35) 6.51 31.74 33.13 32.35 3.21 6.4 3.21 31.74
104 (40) 5.3 3.58 25.64 17.05 26.91 26.34 2.62 5.18 2.62 25.6
113 (45) 4.35 20.85 22.01 21.58 2.16 4.21 2.16 20.85
122 (50) 3.59 2.71 17.06 12.78 18.1 17.79 1.79 3.45 1.79 17.1
131 (55) 2.98 14.1 14.98 14.75 1.49 2.85 1.49 14.05
140 (60) 2.47 2.03 11.64 9.47 12.47 12.3 1.25 2.39 1.25 11.6
149 (65) 2.09 9.69 10.44 10.32 1.05 1.97 1.05 9.69
158 (70) 1.76 8.12 8.78 8.69 0.89 1.65 0.89 8.12
167 (75) 1.49 6.83 7.42 7.39 0.76 1.39 0.76 6.83
176 (80) 1.27 5.78 6.31 6.27 0.65 1.18 0.65 5.78
185 (85) 1.09 4.91 5.38 5.39 0.56 1 0.55 4.91
194 (90) 0.93 4.19 4.61 4.6 0.48 0.85 0.48 4.19
203 (95) 0.81 3.59 3.97 3.96 0.41 0.73 0.41 3.59
212 (100) 0.7 3.09 3.43 3.43 0.36 0.63 0.36 3.09
221 (105) 2.98 2.98 0.31 0.55 0.31 2.67
230 (110) 2.59 2.6 0.27 0.47 0.27 2.32
239 (115) 2.26 2.27 0.24 0.41 0.24 2.02
248 (120) 1.99 2 0.21 0.36 0.21 1.76
284 (140) 1.21 1.22 0.13 0.22 0.13 1.06
320 (160) 0.77 0.79 0.09 0.14 0.09 0.67
356 (180) 0.51 0.52 0.06 0.09 0.06 0.44
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