Samsung RL-28FBSW Bedienungsanleitung

MODEL:

RL-28FBSW

RL-28FBSI

SERVICESERVICE

MANUALMANUAL

CONTENTS

REFRIGERATOR

1. PRECAUTION......................................................................1

2. PRODUCT SPECIFICATION...............................................2

3. STRUCTURE.......................................................................3

4. CIRCULATION OF REFRIGERANT.....................................5

5. SCHEMATIC- DIAGRAM......................................................6

6. SPECIFICATIONS OF MAJOR FUNCTIONAL PARTS........7

7. OPERATING PRINCIPLE OF MAJOR COMPONENTS

AND INSPECTION METHOD..............................................8

8. HOW TO REPLACE MAJOR COMPONENTS...................11

9. TROUBLE -SHOOTING.....................................................13

10. EXPLODED VIEW AND PARTS LIST...............................14

1-1. Safety precautions1-1. Safety precautions

Only qualified service technicians who are thoroughly familiar with the refrigerating cycle and the

required safety checks should perform service operations in accordance with specified guidelines.

1 -1-1. Prior to servicing, be sure to disconnect the product from its electrical power source by removing the

products eletrical plug from the wall receptacle to preclude the possibility of resultant presonal injury

and / or property damage.

1-1-2. Never attempt to modify or bypass circuit connections in ways not recommended by the manufacturer.

1-1-3. Do not use any extension or double adaptors.

1-1-4. For person safety, this appliance must be properly grounded.

This refrigerator should not be grounded with a telephone line, gas pipe etc.

1 -2-1. In case of article No.1 and starting capacitor ( itself only ) do not supply power in order to check for

eletrical charge and discharge for more than two minutes. When power is supplied for more than two

minutes, the insulation inside the capacitor may be broken. When it is impossible to finish the test

within two minutes, wait for about 30 minutes, and then check again.

1-2-2. When replacing the relay connected to the compressor terminal pin, be sure to pull it off straight and

push it on straight, Swaying of the relay side-to-side or up and down, may cause damage to the

compressor terminal pin and / or the relay.

1-2-3. Wait more than 5 minutes to re-start the refrigerator after you stop it once.

If you plug in the refrigerator immediately after you pull the plug, you may not be able to start it again.

1-2. Servicing precautions1-2. Servicing precautions

: This is safety-related information on the A/ C power circuits and parts used in the refrigerator.

: This is the information required for repairing the refrigerator.

1.PRECAUTION

Model RL28FBSW RL28FBSI

Type Two door refrigerator & freezer

Power supply AC 220V~50Hz

Refrigerator

Total

167L

Capacity 247L

Overall

dimensions

(mm)

Width 550

Depth 664

Height 1750

Refrigerant(Sealed volume:g)

HFC-134a(160g)

Temperature control Mechanical(Thermostat)

Insulation material

Door Seal

Polyurethane Foam(141b)

Liner ABS

Magnetic gasket

Acces

sories

Door Storage(Option)

1Guard-Bottle,1 Guard Variety,2Guard-Egg,1Tray Ice,1Tray Egg

FreezerStorage

Ref Storage

2 Assy Tray Upp,1 Assy Tray Low

3 Assy Shelves,1 Assy Tray Veg,1Guard wine

Printed Matter Owner's Manual,Label

2.PRODUCT SPECIFICATION

3-1.DESCRIPTION OF COMPONENTS

3.STRUCTURE

7. ASSY TRAY LOW

8. GUARD EGG

9. GUARD VARIETY

10. TRAY EGG

11.TRAY ICE

12. GUARD BOTTLE

1. TOP TABLE & PANEL PCB

2. ASSYLAMP

3. GUARD WINE

4. ASSYSHELF

5. CASE VEGETABLE

6. ASSY TRAY UPP

3-2.PRODUCT INSTALLATION

A B C D F G H I J K

RL28FBSW 550 671 9 979.5 1711 1750 39 392 1094.76664

RL28FBSI 550 671 9 979.5 1711 1750 39 392 1094.76664

CBI D

MODEL

4.CIRCULATION OF REFRIGERANT

Condenser

Evap fre

Evap ref

Tube capillary

Compressor

Dryer

4-1.Circle of refrigerant

5-1.Circuit Diagram

5.SCHEMATIC DIAGRAM

ÒÒÓÓ

SSCOMPRESSORCOMPRESSOR

Y/GRNY/GRN EARTHEARTH

Y/GRNY/GRN

S/BLUS/BLU

POWER SWITCHPOWER SWITCH

DOOR S/WDOOR S/W

DISPLAYDISPLAY

SUPER S/WSUPER S/W

LAMPLAMP

NCNC

BLKBLK

BRNBRN

GRYGRY

BLUBLU

EARTHEARTH

W/BLKW/BLK

REDRED

PINKPINK

EARTHEARTH

Y/GRNY/GRN

AC220V/50HzAC220V/50Hz

REF-THERMOREF-THERMO

HEATERHEATER

S/WS/W

S/BLUS/BLU

P.T.C RELAYP.T.C RELAY

3366

22PP

O/L PROTECTO/L PROTECT

NONO

6.SPECIFICATIONS OF MAJOR FUNCTIONAL PARTS

ITEM

REFRIGERATION

CYCLE

ELECTRICAL

PARTS

SOURCE

AC 220V~50Hz

QB66C

165W/RSIR

OUT PUT/STARTING TYPE

MODEL

COMPRESSOR

EVAPORATOR

CONDENSER

DRYER

MOLECULAR SLEVE

CLUSTER

FIN TYPE

CAPILLARY TUBE

REFRIGERANT(g)

THERMOSTAT

POSISTOR

MODEL MM3-23GC

8EA503

WDF29

O1.8*0.62*3500

R-134a 160g

CLOSE TEMP/OPEN TEMP 61+8 C/120+5 C

OVERLOAD P

ROTECTOR

7.OPERATING PRINCIPLE OF MAJOR COMPONENTS,

AND INSPECTION METHOD

7-1.Compressor Motor

7-2 Overload Protector

The compressor motor, mounted directly to the

compressor and located inside a sealed steel

case, has two windings.

One is a start winding and the other a run winding.

The windings are connected together internally,

forming a common connection. A lead is connected

to each of the windings, and to the common

connection. These three leads are then connected

to glass-sealed terminals that extend through the

compressor case.

The terminals are clustered in al trangle ( pyramid )

pattern and, reading from left to right, are identified:

Start, Common and Run.

1) Measure the resistance of each winding of the

compressor.

a. Disconnect the power cord.

b. Remove the relay from the compressor.

C. Measure the resistance of each winding.

A. The highest resistance value is the measurement of

the "start" and "run" terminals whose windings are

connected in series.

B. The lowest resistance value is the measurement of

the "run" and "common" terminals.

C. The mid-level resistance

value is the measururement

of the "start" and "common"

terminals.

B + C = A

2) Measure each terminal and

ground with the ohmmetor

set to the highest range.

If a winding is found to be

either open or shorted to

ground, the compressor

has failed.

Operating principle

Inspection method

The overload protects the compressor motor by

responding to both the temperature and current.

The overload protector is basically made up of

a set of the contacts normally closed and the

bimetal element.

The overload, mounted externally and in direct

contact with the compressor case, is connected

in series with both windings of the motor.

If the motor fails to start for any reason, the heavy

locked rotor current will cause the bimetal element

to heat which then quickly flex, snapping the

contacts open and interruption current flow through

the motor.

Likewise, if the motor overheate to an unsefe leval,

the comination of current and temperature will cause

the bimetal to snap the contacts open, On cooling,

the bimetal flex back and snaps the contacts closed.

The motor will continue to cycle on the overload so

long as the oriqinal reason for tripping persists

1) Check for continuity with ohmmetor.

- If the overlosd is tripped, cheak continuity after

waiting until it has cooled, in the room ambient

before checking.

- Even though the continuity of the overload is

observed it is difficult to confirm that the overload

is operating within the specification limits.

If there is any doubt, replace it with a part with

identical specifications.

: An overload should NEVER be by-passed

in the circuit , not even as a temporary

measure until the proper replacement can

be installed.

Compressor Windings

7-3.Relay

Operating principle Inspection method

The relay momentarily energizes the start winding to

start the rotation of the compressor motor.

Most later refrigerator models use a solid state type

relay.

Unlike the mechanical type relay, the solid state relay

has no coil and no moving contacts.

This relay consists of a small solid state wafer that has

a low resistance at room temperature.

The wafer is positioned between electrical terminals

that connect to the compressor terminals.

As voltage is initially applied to the compressor circuit,

current flows through the run winding and, in parallel,

through the relay and start winding . Initially , the

resistance of the relay is low enough to pass sufficient

current through the start winding and permit the

compressor to start.

Then, instantaneously, the resistance of the relay goes

high-in effect, reducing the current flow through the

relay to a trickle . This trickle current causes the

resistance of the relay to remain high , thus keeping

the relay "open".

This type of relay is called a PTC(positive temperature

coefficient) relay because the resistance goes high as

the temperature increases.

The solid state relay can be tested for continuity,

using an ohmmeter. The measured resistance of the

relay, at room temperature, should be within 10% of

the value stated on the schematic wiring diagram for

the particular model.

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