Daewoo FRS-2021 Service Manual page 19

SILENT (Silence Mode)
INPUT
1. CDS SENSOR
1. Purpose of Silence mode
To reduce refrigerator noise at night by decresing fan RPM to a minimum degree
2. Condition to start
1) The optical or light sensor in top middle of control panel senses surround light and
Silence mode starts if the amount of light sensed is below the standard value for
more than 1 minute.
(The mode does not start for initial 240 minutes to prevent down of cooling
performance.)
a. Standard value to decide ' night' : below 5~7 Lux (optical sensor surface)
b. Standard value to decide ' daytime' : above 4~16 Lux
(optical sensor surface)
3. Control Method
Control Mode
Normal
Silence
Load
Control
4. Termination Condition
The mode stops if lux value is above the standard for more than 1 minute.
Control of Each Mode
INPUT
1. CDS SENSOR
2. R SENSOR
3. F SENSOR
* Control of Silence mode : operation mode when the optical sensor feels that it is
* Normal control : daytime operation mode
(Refrigerator noise is relatively low at daytime.)
* Load control : operation mode when inside temperature goes up due to an
increase of load (foods) or frequent door openings
CONTENTS
F-FAN R-FAN
10V 10V
12V 12V
CONTENTS
night
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Control Object
5. COMP
6. R-FAN
7. F-FAN
8. CUSTOM-LCD
C-FAN
10V
10V
Control Object
1. F-FAN (14V, 12V, 10V)
REMARKS
REMARKS