Daewoo FRS-T20BA Series, Service Manual

Page: 21 / 70

21
OPERATION AND FUNCTIONS
5. Silence Mode
6. Control of Each Mode
INPUT Control Object
1. CDS SENSOR
1. COMP
2. R-FAN
3. F-FAN
4. CUSTOM-LCD
CONTENTS REMARKS
1. Purpose of Silence mode
To reduce refrigerator noise at night by decresing fan RPM to a minimum degree
2. Condition to start
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.)
- Standard value to decide "night" : below 5 ~7 Lux (optical sensor surface)
- Standard value to decide "day time" : above 4~16 Lux
(optical sensor surface)
3. Control Method
Control Mode F-FAN R-FAN C-FAN
Normal
Silence
Load
Control
10V 12V
10V 10V 10V
12V
4. Termination Condition
The mode stops if lux value is above the standard for more than 1 minute.
INPUT Control Object
1. CDS SENSOR
2. R SENSOR
3. F SENSOR
1. F-FAN (14V, 12V, 10V)
CONTENTS REMARKS
Control of Silence mode : operation mode when the optical sensor feels that it is
night
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.