14
8
Initial
Defrosting
1. D-Sensor
2. Initial Power
Supply
Defrosting
Mode
1. Defrosting mode starts when D-Sensor 3.5 at initial power supply.
( It starts from Pre-cool )
COMP delay for
6min at initial
defrosting
9
Explanation
after Delivery
1. TEMP Control
Button
2. Power Cord
Electric Devices 1. Start : Press both buttons for 3 seconds after initial power supply
( plug-in ).
2. Electric devices turn Off for 3 hours.
3. Display works in normal way.
10
Prevention of
COMP Restart
COMP
1. COMP does not restart
after COMP Off, though F-Sensor turn On.
6 min.delay
11
Buzzer Alarm
1. Button on F-
PCB
2. Door Switch
Buzzer
1. Buzzer rings by perssing F-PCB Buttons.
2. Buzzer rings for 1 second after initial power
suppluy(plug-in)
3. Buzzer rings for 1 second at the start of A/S Forced
Defrosting.
4. Buzzer rings every 1 minute after door opening.
( It rings within 5 minutes and ring-time is prolonged as
time passes)
5. Buzzer makes short ring every 5 seconds in Error
Display.
12
Demonstration
Function
1. Door Switch
2. TEMP Control
Button
Electric Devices 1. Start : open and close Refrigerator [ Freshfood
Compartment ] Door 5 times while pressing TEMP
Control Button.
2. Control
1) Electric devices turn Off except for R-Fan.
2) Fan Control
3. Dissolution :
1) Open and close Refrigerator [ Freshfood
Compartment ] Door 5 times while pressing REF.SET
Button in Demonstration mode.
2) Supply the power again ( plug-out and plug-in )
6 minutes delay
13
Control of R-
Sensor Off-
Point
1. Slide
SW(SW1) on
M-PCB
Control Resis-
tance of R-Sen-
sor “2” Off-Point
1. In case of Weak-refrigeration ( though R-Fan and Comp
work on and on ), the following actions are to be done.
2. Resistance R13 : Control Resistance of R-Sensor
Middle (“2”) Off-point ( 4.0 , 31.4 )
3. Resistance R14 : reduceing R-Sensor Resistance by
1.5 in case of weak-Refrigeration ( 2.5 , 2.15 )
4. SW1 : during A/S, if SW1 is opened, R-Sensor Middle Off-
point decreases by 1.5 .
5. Switch Status and R-Sensor Middle Off-point
NO CONTROL
FUNCTION
INPUT
CONTROL
OBJECTS
CONTENTS
REMARK
Door Open
Door Close
R-FAN
ON
OFF
Switch Status
R-Sensor Middle Off-Point
Normal/Using Jig
4.0
In Weak-refrigeration
2.5
OPERATION AND FUNCTIONS
Содержание FR-521NB
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