Daewoo FR-63-20 Service Manual

S/M No. : FR631KD010

Service Manual

Refrigerator

Model: FR-631KD

DAEWOO ELECTRONICS CO., LTD.

http://svc.dwe.co.kr

Feb. 2001

SAFETY AND PRECAUTIONS

1)For starters, be sure to check any chances of the leakage of electricity

2)You could handle a part in the vicinity of electricity after unplugging

3)You should put on rubber glovers to prevent an electric shock on operation test

4)Make sure the rated current, voltage, capacity before using an instrument

5)Keep your wet hands away from the metal goods in the freezer compartment not to be frostbitten

6)Be careful not to let water to permeate the electric part in the machine room

7)with the door open during your working, you might be damaged by that door

8)You should give a tilt to the refrigerator for your safe after removing the breakable goods inside the refrigerator

9)You'd better use cotton gloves if you fix it up around the evaporator

TABLE OF CONTENTS

1. EXTERNAL VIEWS .........................................................................................................................................................2

1-1. EXTERNAL SIZE				...........................................................................................................................................							2
1-2. NAME OF PARTS					..........................................................................................................................................						2
2. SPECIFICATIONS ...........................................................................................................................................................3
2-1. OUTLINE		........................................................................................................................................................									3
3. OPERATION AND FUCTIONS........................................................................................................................................4
3-1. FUNCTION LIST			............................................................................................................................................								4
3-2. CIRCUIT & WIRE DIAGRAM								.........................................................................................................................			7
3-3. CIRCUIT	.........................................................................................................................................................										8
4. DIAGRAM ......................................................................................................................................................................14
4-1. AIR FIOW DIAGRAM						...................................................................................................................................				14
4-2. REFRIGENT CYCLE DIAGRAM									..................................................................................................................	15
5. EXPLODED VIEW AND PARTS LIST...........................................................................................................................16
5-1. TOTAL EXPLODED VIEW							...........................................................................................................................			16
5-2. TOTAL PARTS LIST ....................................................................................................................................										17
5-3. MACHINE ROOM EXPLODED VIEW AND PARTS LIST............................................................................										21

1

1. EXTERNAL VIEWS

1-1. EXTERNAL SIZE
38.4		715.1	810
		62
589		695	590
			17.3
10			12
1817.4			820
		732	820
1084
96	18	52
		1.1

1-2. NAME OF PARTS

			1Freezer Compartment Lamp
			2Shelf Ffreezer
	1		3Case Icing
		u	4Guide Icing
	2		5Ice Box
		i	6Refrigerator Compartment Lamp
	3
	4		7Cover Cubic Duct
	5		8Fresh Case
			9Shelf Refrigerator
	6	p	0Deodorant
		o	qCover Vegetable
	7		wCase Vegetable(B)
	8	d	eCase Vegetable(A)
	9		rGuide Vegetable
	0		tFront Grille
		a	yAdjustable Foot
	q	s	uFreezer Pocket Top
			iFreezer Pocket Under
	w
			oEgg Pocket
	e	f
			pEgg Tray
	r		aGuide Bottle
	t		sBottle Pocket
	y		dMulti Pocket
			fMulti Pocket

2

2. SPECIFICATIONS

2-1. OUTLINE

DIVISION		CONTENTS
MODEL NAME		FR-631KD
	FREEZER	138
USABLE CAPACITY (L)	REFRIGERATOR	366
	TOTAL	504
	WIDTH	818
EXTERNAL DIMENSION( mm)	DEPTH	752
	HEIGHT	1818
REFRIGENT	R134a	110
	COOLING SYSTEM	Fan Cooling System
COOLING &CONTROL SYSTEM	DEFROST SYSTEM	Fin Evaporator Forced
	DEFORST CONTROL	Automatic Start & Stop
NET WEIGHT (kg)		85

3

3. OPERATION AND FUCTIONS

3-1. Function List

1-1. Freezer Temperature

Input	Control Object				Contents			Remark
1. Temperature	1. COMP	1. Freezer temperature is controlled by Freezer Temperature Dial.
Dial		Weak			Middle		Strong
2. F Thermostat	2. F-FAN
3. ON / OFF	3. C-FAN
DIFF.		2. COMP, F-FAN and C-FAN are controlled by ON/OFF point of each
		mode.
		3. ON / OFF DIFF of Freezer : 4.0°C
		(Middle OFF Point of Freezer : -12.0°C)
		4. Strong / Weak Step DIFF of Freezer : 3.0°C
		5.

	Temperature
	-9.0˚C	-12.0˚C
			ON
			-15.0˚C	ON/OFF
	-13.0˚C
		-16.0˚C	OFF	DIFF
			-19.0˚C
	STEP DIFF	STEP DIFF		MODE
	Weak	Middle	Strong

1-2. Refrigerator(Fresh Food Compartment) Temperature

Input	Control Object					Contents				Remark
1. Temperature	1. R-Fan	1. efrigerator temperature mode is set by the temperature dial.
Dial		Weak				Middle			Strong
2. R Thermostat
3. ON / OFF
DIFF		2. R-FAN is controlled by ON / OFF point of each mode.
		3. ON / OFF DIFF of Refrigerator : 3.0°C
		(Middle OFF Point : 0.5°C)
		Strong / Weak STEP DIFF : 2°C
		* When R-Thermo reaches to R-FAN ON point, R-FAN turns ON ;
		OFF point, R-FAN turns OFF.

Temperature
5.5˚C	3.5˚C
		ON
		1.5˚C	ON/OFF
2.5˚C	0.5˚C	OFF	DIFF
		-1.5˚C
STEP DIFF	STEP DIFF		MODE
Weak	Middle	Strong
4

1-3. Defrosting Cycle

Input

Control Object

Contents

Remark

1. Accumulated

1. Defrosting

1.

What to consider in determining the defrosting cycle

work time of

Mode

Total (accumulated) work time of COMP

COMP

2.

Conditions to start defrosting mode

When total work time of COMP is more than 8, defrosting mode

starts unconditionally.

START

2

4

6

7

8

(Total Work Time of COMP)

1-4. Defrosting Mode

Input	Control Object				Contents	Remark
1.Defrosting	1. COMP	1. Defrosting Mode
Cycle	2. F-FAN				1) COMP, F/R/C-FAN: Control
			Control
	3. R-FAN
	4. HEATER				1) If Bi-Metal is over 10, Heater turns Off.
			Heater Defrosting
					2) COMP, F/R/C FAN: Off
					1) Pause: 5 minutes
			Pause
					2) COMP, F/C-FAN: Off
					3) R FAN: Control
					1) COMP, F/R/C FAN: Control
			Control

2. Time Chart in Defrosting Mode

Comp	ON	OFF
F-FAN	ON
C-FAN	ON
R-FAN
HTR		HTR ON

		HTR Start HTR Finish		Pause Finish/
			Pause Star	CONTROL
3. Output Control & Limit Time of Each Defrosting Mode
		Control	Heate Defrosting		Pause	Control
	COMP	ON/OFF	OFF		OFF	ON/OFF
	F-FAN	ON/OFF	OFF		OFF	ON/OFF
	R-FAN	ON/OFF	OFF		ON	ON/OFF
	HEATER	OFF	ON		OFF	OFF
	Limit Time	–	If Bi-metal≥ 10°C,		5min.	–
			HTR turns Off.

1)When defrosting starts COMP and F/R/C-FAN turn Off.

2)R Fan is ON/OFF Controlled in Pause mode.

5

1-5. Time Delay of Electrical Parts

Input

Control Object

Contents

Remark

1. Door Switch

1. F-FAN

1. F/R-Fan movement by Door Switch

- R-Fan turns

2. R-FAN

Off when

Door Switch

Open

DOOR

turns On.

Close

On

R FAN

Off

F FAN

On

Off

Time Delay : 0.2 second

-When door is open, F-Fan and R-Fan turn Off simultaneously.

-When Door SW is closed and Fans turn On, R-Fan first turns on and 0.2second later F-Fan turns On.

2.Fan Delay and Priority

-R FAN ON ---> ON without delay

-F FAN ON ---> ON after 0.2second delay

-C FAN ON ---> ON after 0.1second delay

Terms to be ON.

On

R

Off

FAN

C

On

FAN

Off

0.1sec.

On

F

FAN

Off

0.2sec.

-In case of DC-Fan initial movement, R-Fan starts first, then C-Fan and F-Fan work due to the over current protection.

6