30
Spe
cial attention
Most Indoor Unit temperature sensors of the frequency conversion
machine have a resistance value of 20KΩ.
Do not use improper sensor during repairing and maintenance, or it
may led to the start of anti-frosting or overheat protection mode due to
wrong temperature sensing of the machine.
In case a sensor with the resistance value over 20KΩ is used, the
detected temperature will be much lower than the actual temperature,
which may lead to the high pressure of cold-blast protection system
during the heating process, or the frequent start of anti-freezing
protection during the cooling process.
n case a sensor with the resistance value below 20KΩ is used, the
detected temperature will be much higher than the actual temperature,
which may lead to the frequent start of overheat protection mode
during the heating or the overload protection during the cooling
process.