Daewoo FRS-2021 Service Manual page 16

6. SUPER FRZ. (Quick Freezing)
1) Comp. and F-fan are ON (about 150 minutes) regardless of F-sensor.
2) F-fan runs at 14V for the first 90 min., then at 12V for the rest time.
F/S
F Fan
SUPER FRZ. start
Temperature Control of Refrigerator Compartment (RC)
INPUT
1. REF SET. button
2. R-sensor
1. Temperature modes change by pushing the button.
Low Low-Mid
2. R-fan are controlled by ON / OFF point of each mode.
3. RC [ON / OFF] DIFF : 0.35C
( RC middle OFF point : 0.3C)
4. RC [Low -> (Low-Mid) -> Mid -> (Mid-High)] DIFF : 1 degree respectively
5. Prevention of weak/poor-refrigeration
1) When weak refrigeration is sensed, comp. is ON regardless of F-sensor.
2) When R-sensor reaches R-fan OFF point, comp. is controlled by F-sensor and
R-fan turns OFF.
3) Sensing point of weak refrigeration : R-sensor OFF point of each mode + 7C
4) Termination point : Same as R-sensor OFF point of each mode
CONTENTS
14V
12V
90min. 60min.
Normal operation
F-fan RPM
change point
CONTENTS
Mid
Control Object
1. COMP
2. R-FAN
Mid-High
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REMARKS
* ON/OFF DIFF. :
fixed by MICOM
* STEP DIFF. :
fixed by MICOM
* Comp. and C-fan :
linked
REMARKS
* ON/OFF Diff. :
High
fixed by MICOM
* STEP DIFF. :
fixed by MICOM