Temperature Control Of Rc - Daewoo FRS-T20FA Series Service Manual

OPERATION AND FUNCTIONS
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
3. Te mperature Control of Refrigerator Compartment (RC)
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. Refrigerator Compartment [ON / OFF]
( Refreigerator Compartment middle OFF point : 0.7
( If RT 13 , R-S OFF point is 2 C
point : 2.7 )
C
4. Refrigerator Compartment [Low
: 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 + 7
4) Termination point : Same as R-sensor OFF point of each mode
CONTENTS
14V
12V
90min. 60min.
Normal operation
F-fan RPM
change point
INPUT
CONTENTS
Mid
DIFF : 0.5 C
C UP. Refrigerator Middle OFF
(Low-Mid)
Control Object
1. COMP
2. R-FAN
Mid-High High
C )
(Mid-High)] DIFF
Mid
18
REMARKS
* ON/OFF DIFF. :
fixed by MICOM
* STEP DIFF. :
fixed by MICOM
* Comp. and C-fan :
linked
REMARKS
* ON/OFF Diff. :
fixed by MICOM
* STEP DIFF. :
fixed by MICOM
C