Function Of Thermistor - Daikin FT25CV1A Service Manual

Functions of Heat Pump Models
2.9

Function of Thermistor

2.9.1 Heat Pump Model
A Outdoor Heat 1. The outdoor heat exchanger thermistor is used for high pressure protection during cooling
Exchanger
Thermistor (DCB)
B Indoor Heat 1. The indoor heat exchanger thermistor is used to prevent freezing.
Exchanger
Thermistor (DCN)
2. The indoor heat exchanger thermistor is used for anti-icing control.
38
A
Four way valve
operation.
During the cooling operation, if the temperature drops abnormally, the operating frequency
becomes lower, then the operation must be halted.
During the cooling operation, if the heat exchanger temperature in the room where operation
is halted becomes –1°C, it is assumed as icing.
Compressor
Si01-406
B
(R3070)
Functions and Control