11-3 Sensor Part
M
I
C
O
M
C301
104
C302
104
C303
104
Vcc
R3021K
R3041K
R3061K
R405 10K-F
R305 10K-F
R303 10K-F
R301 10K-F
Freeze Sensor
Refrigerating
sensor
Evaporator
sensor
The sensor is a temperature sensitive rheostat whose resistance goes up at high temperature
and drop down at low one. The sensor's resistance will vary with the changing tempeature and
incur the voltage altering in chip to control the chip action.
Temperature Sensor's Resistance & Ronversion Table of Chip Input Voltage.
22
11-4 Operation Part
D603 D606 D609 D612 D615
D614
D611D608D605D602
D601 D604 D607 D610 D613
1.OPTION circuit plays the role of adjusting the tempeature setting parameters.
2.The OPTION circuit information may be read at the stage of initial self-diagnosis.
3.You may adjust the temperature setting during maintenance by adding a diode on the
OPTION circuit.
The altering of the Ref. & Fre. default temperature under the mode of Standard Run is set
forth as below:
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