Danfoss Heat Pump Anleitung zur Fehlerbehebung PDF herunterladen (Seite 15)

VMIFB202

Alarm sensor

Action:

Measure the resistance of the sensor, check the ohm value against the temperature according to the table below.. If the actual tempera-

ture and the temperature displayed do not correspond, calibrate or replace the sensor.

When measuring the resistance of the sensor the sensor must be released before measuring!

If a fault in the outdoor sensor is suspected, check that the cable between the heat pump and outdoor sensor is not damaged in

anyway by nails, pins or another cable securing device. This is a commonly occurring fault.

If the sensor does not give a correct value, the sensor is defective.

Troubleshooting Guide Alarm sensor

temperatur ohm

-30 1884

-25 1443

-20 1115

-15 868

-10 681

-5 538

0 428

5 343

10 276

15 224

20 183

25 150

30 124

35 103

40 86

temperatur kohm

0 66.3

5 52.4

10 41.8

15 33.5

20 27.1

25 22

30 18

35 14.8

40 12.2

45 10.1

50 8.5

55 7.1

60 6

65 5

70 4.2

75 3.7

80 3.1

85 2.7

150 ohm sensor

Outdoor / Defrost sensor

22 kohm sensor

Supply line, return line, hot water,

brine in, brine out, discharge pipe sensor

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 33 34

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