Specified and substitute values for the temperature sensors IHKA

Data on working range and substitute value in event of cutout or K bus fault.

Temperature sensor

Working range

Substitute value

Mixed air temperature sensor

-40°C ... 105°C

55°C

Evaporator sensor

-45°C ... 85°C

0°C

Internal temperature sensor

-45°C ... 80°C

20°C

Exterior temperature value

K-BUS

-

Coolant temperature value

K-BUS

-

Specified temperature

16°C ... 28°C

-

Data on resistance values at 25°C and fault limits:

Temperature sensor

Resistance

Tolerance

Mixed air temperature sensor

10 kΩ

+/- 300 Ω

Evaporator sensor

2849 Ω

+/- 57 Ω

Internal temperature sensor

10 kΩ

+/- 200 Ω