°C Outdoor / Defrost sensor
150 ohm, Ω
PT1000 sensor
1000 ohm, Ω
Other sensors
22 kilo ohm, kΩ
-20 1115 – –
-15 868 – –
-10 681 – –
-5 538 – –
0 428 1000 66,3
5 343 – 52,4
10 276 1039 41,8
15 224 – 33,5
20 183 1078 27,1
25 150 – 22,0
30 124 1117 18,0
35 103 – 14,8
40 86 1155 12,2
45 – – 10,1
50 – 1194 8,5
55 – – 7,1
60 – 1232 6,0
65 – – 5,0
70 – 1271 4,2
75 – – 3,7
80 – – 3,1
85 – – 2,7
3.3.1 Measurement checking sensors during fault tracing
1. Disconnect the relevant sensor from I/O-card/terminal block.
2. Measure the resistance for the sensor and any extension cables.
3. Then measure the sensor only.
To ensure the sensor value the actual temperature must be checked against the measured resistance.
Service Instructions DHP-AQ
Danfoss Heating Solutions VMGFJ202
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