Outdoor Air Temperature sensor
Carrier Sensors
CARRIER CORPORATION ©2021
Installation Guide
All rights reserved
37
OAT sensor specifications
Operating range
-40° to 245°F (-40° to 118°C) with a nominal resistance of 10,000 ohms at
77°F (25°C). See table below.
Sensor tolerance
Accuracy of ±0.36°F (0.2°C) from 0° to 70°C
Physical
Has a thermistor encased in a plastic resin probe that is enclosed in a PVC
housing
Thermistor Resistance vs. Temperature Values for Outdoor Air
Temperature Sensor
10K Type II (CP/MCI)
Temp (F)
Temp (C)
Resistance (Ohms)
-40
-31
-22
-13
-4
5
14
23
32
41
50
59
68
77
86
95
104
113
122
131
140
149
158
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
335,651
242,195
176,683
130,243
96,974
72,895
55,298
42,315
32,651
25,395
19.903
15,714
12,494
10,000
8,056
6,530
5,325
4,367
3,601
2,985
2,487
2,082
1,752
Wiring specifications
Cable from sensor to controller:
If <100 ft (30.5 meters) 22 AWG, unshielded
If >100 ft (30.5 meters) 22 AWG, shielded
Maximum length:
500 feet (152 meters)
Downloaded from
