Panasonic NR-BN211GKMY User manual

Order No. : PMIRF1609006C3
Glass Jet Black ( K )
Glass Gallant Blue ( A )
Glass Wine Red ( R )
Destination
Malaysia
Note :
PT Panasonic Manufacturing Indonesia
Jl. Raya Bogor km. 29, Pekayon, Pasar Rebo, Jakarta 13710, Indonesia
This service manual handbook can be owned but can not be reproduced without permission from Refrigerator Business Unit, PT Panasonic Manufacturing Indonesia.
There are special components used in this equipment which are important for safety. These parts are marked by in the Exploded Views and Replacement Parts List. It is
essential that these critical parts should be replaced with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission
of manufacturer.
CFC & HCFC have been used in refrigerant as refrigerator and the insulation materials for many years. But it is now known that these compounds which once
seemed so ideal for use as cleaning agents and in refrigeration systems, destroy the earth's ozone layer as a result, an international body decided on a total
worldwide ban of harmful CFCs by the end of 1995.
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or
cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired
only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could
result in serious injury or death.
SERVICE MANUAL
NR-BN211GKMY
NR-BN211GAMY
NR-BN211GRMY
Refrigerator
Product Color
GLASS DOOR
NR-BN211GKMY
( JET BLACK )
PS
WARNING
IMPORTANT SAFETY NOTICE
GLASS DOOR
NR-BN211GAMY
( GALLANT BLUE )
GLASS DOOR
NR-BN211GRMY
( WINE RED )
- 1 -

CONTENTS :
Item Pages
Content 2
1. Safety Cautions for Repairing 3
2. Specification and Components 4
3. Wiring Diagram and Wiring Connection 5
4. Cooling Performance Data 6
5. Cooling Circulation and Main Component Function 6
5.1 Function of Each Component 6
6. Reparation Standard 7
6.1 Repairing Devices Which are Exclusive - Use for HFC-134a Refrigerant 7
6.2 Repairing Standard of Refrigerating Unit HFC-134a 7
6.3 Tool for Repairing Refrigerating Unit HFC-134a 8
6.4 Refrigerating Unit Repairing Procedure 9
6.5 Method to Repairing Regrigerating Unit 10
6.6 Check pressure at high pressure side 13
6.7 Safety Check 20
7. Instruction to Assembly Parts 21 ~ 22
8. Part List 23 ~ 25
9. Packing Instruction 26
No.
-2-

I. SAFETY CAUTIONS FOR REPAIRING
When you repair refrigerator, please kindly take care of following cautions.
a) Warning
Before repairing unit, unplug power supply cord
● Before you repair refrigerator, unplug the power supply cord.
Use authentic parts when repairing
● When you replace the parts, please use authentic parts to replace defective parts.
Caution during brazing
● When you use touch for brazing, please ensure ventilation. Otherwise, you will be poisoned by
carbon monoxide.
Pay attention to using refrigerant
●If refrigerant touches fire, the gas becomes poisonous gas.
Pay attention to getting electricity shock
● When you check the voltage of terminal, please do not touch the electricity parts terminal.
● When you replace the parts, please wait three minutes at least for discharging capacitor.
Check safety after repairing
● Check the screws, parts, lead wires to take in place.
● And check the repairing portion whether circumferential parts are damaged or not.
● Check insulation resistance between power supply cord and earth.
● When install refrigerator, check condition of power supply cord and plug.
● Wipe off the dust on plug.
● Cutting and seal the electric device carefully.
b) Caution
Watch the hot parts
● During operation and after operation, compressor and pipes are hot.
● Also, under these condition, heater are hot.
● Do not burn your fingers when you touch it.
Pay attention to refrigerant
● Do not touch liquid refrigerant.
● Otherwise, your hands may be burnt.
Pay attention to edge of parts
● Otherwise, your fingers may be cut.
Pay attention to fins of evaporator and condensor
● Otherwise, your fingers may be cut.
Before transportation, adjust adjustable bolt
● Otherwise, the floor may be damaged.
Do not touch the pipe after brazing
● Otherwise, your hands may be burnt.
-3-

2. Specification and Components
*) Specification subject to change without prior notice.
**) Weight and dimension are actual condition.
Ampere
Input
Weight **)
Outside Dimension ( mm )
Inside Dimension ( mm )
Capacity
0.60 A
Model
DC Fan Motor
Lamp
PTC Relay
Motor Protector
Door Switch
Refrigerant Gharging Amt. ( NON-CFC)
Lubricating Oil Charging Amt.
Evaporator
50 mm
Dial Adjustment
Auto Defrost Start- Auto Defrost StopDefrosting System
Temperature Control
Material and Cabinet Color
Vacuum Formed HI-PS Resin
Thickness Insulation
Blowing Agent
( W ) 528 mm ( D ) 584 mm ( H ) 1455 mm
Indirect Cooling ( No Frost )
PCM Sheet Carbon Black Emboss
43 kg (Net)
Inner Liner
Cyclopenthane
Cooling System ( Evaporator )
195 ± 5 cc ( Freol Alpha - 22 )
SF51C91RAW5-S0YS, Cylinder cap A = 5.10 cc, rev.Capacity = 148W, Power Input = 110W
100 ± 5 gram ( HFC-134a )
Coil Evaporator
Main Parts For Cooling System
Compressor
Plug
Destination
Electric Devices
D3D-121 ( OMRON ), Rating = 1A 125VAC/0,5A 250V
5TM181NHBYY ( Opening Temp = 120±5
O
C, Closing Temp = 69±9
O
C,
Rating = DC12V/3.6, Type = 3612JL-04W-S40-G03, Applied Fan = Æ 81 PROP FAN (BOX TYPE)
Type = MM6-8V48, Rating = 220V / 130W
PTH7M330MD2
LED LAMP PCB(PC) ( 12V / 60 Ma )
Temp. Fuse
Radiant Heater
Type = NTC, Rating = B=3819K±2% R10=3.899KΩ±3%
Type = 401405L, Rating = 4uF - 400VCapacitor
Sensor Defrost
Rating = MICRO TEMP ( 250V / 10A / 73
O
C )
NR-BN211GKMY, NR-BN211GAMY, NR-BN211GRMY
NR-BN211GKMY, NR-BN211GAMY, NR-BN211GRMY
210 Liter
FC = ( W ) 404 x ( D ) 335.5 x ( H ) 411.5, PC = ( W ) 460 x ( D ) 435 x ( H ) 827
97 W
S3
Malaysia
240V~/50Hz
Specification
Voltage / Frequency
- 4 -

3. Wiring Diagram dan Wiring Connection
NR-BN211GKMY, NR-BN211GAMY, NR-BN211GRMY
a) Wiring Diagram
b) Wiring Connection
-5-

4. Performance Data
NR-BN211GKMY, NR-BN211GAMY, NR-BN211GRMY
PC
(
o
C)
(
o
C)
(
o
C)
(
o
C)
(
o
C)
(%)
*
Cooling performance at ambient temperature 32
O
C
5. COOLING CIRCULATION AND MAIN COMPONENT FUNCTION
5.1 FUNCTION OF EACH COMPONENT
1. Compressor
The function is to compress refrigerant gaseous so that make the temperature and pressure high.
2. Condensor
The function is to decrease the refrigerant temperature, so it is liquified with same pressure.
3. Pipe Mullion Dryer
4.
5.
6.
7.
FC
Control Setting
-
-
Freezer Max
"3"
-
1.0±2.5
-22.5±2.5
PC door shelf
"2" "1"
Medium Refrige Max
6.0±2.5 -
5.5±2.5
-18.0±2.5
3.0±2.5
-12.0±2.5
The function is to pass the low
pressure gas to compressor.
Evaporator
Suction Pipe
The function is to prevent from sweating.
Dryer
Capillary Tube
It is contain silica gel and soft filter.
The dryer collect moisture and dust
in the refrigerant cycle, so that
capillary tube will not clogged up.
The function is to store cold air to
refrigerator so the refrigerant
change phase become gaseous
with low pressure .
4.0±2.5
60.0±15% 45.0±15%
-
100-15%
Mean fresh food compartment
Mean freezer compartment
Vegetable case
Tray egg
Running Ratio
The function is to reduce the
pressure of liquid refrigerant so that
make the temperature of refrigerant
low.
9.0±2.5 -
-6-

6. Reparation Standard
6.1. REPAIRING DEVICES WHICH ARE EXCLUSIVE - USE FOR HFC-134a REFRIGERANT
1.
a.
b.
2.
Important Notice :
1. Use repairing devices which are exclusive-use for HFC-134a refrigerating unit.
2.
When pipe cleaning is so need :
When pipe cleaning is required :
3. Never use blowing agent containing chlorine.
CFC-12, CFC-113, HCFC-22, HCFC-141b, R-502
4. Be sure to use dryer which is exclusive - use HFC-134a.
Otherwise refrigerant HFC-134a will chemically decompose.
5.
6.2. REPAIRING STANDARD OF REFRIGERATING UNIT HFC-134a
1. OMust be done
D Need to be done if compressor oil get dirty and no good quality (color changing)
2.
Noise up normal
Motor burning
This refrigerator use compressor with Freol Oil. Freol Oil employed as new compressor oil for
refrigerant HFC-134a.
Freol oil is characteristic of higher hyroscopicity. When moisture leaks into the refrigerating
unit, it will chemically react with the moisture and solid substance clogging the pipe will form
It is also characteristic of less stability when chlorine is contain. Freol Oil will chemically
react with refrigerants containing chlorine and solid substance clogging the piping will form.
From the time just after pipe cleaning is completed until the process of setting compressor and
dryer (just before vacuum pumping process).
Since refrigerant HFC-134a has higher degree of swelling to the resin, charge hose and
packing should be made from good materials. Therefor when HFC-134a refrigerating unit,
repairing method and repairing devices axcept for vacuum pump are different from
conventional method and devices. This is to avoid mixture of different refrigerants and mixture
of different oil.
Do not keep the pipe open to air more than 30 minutes. Rubber caps of compressor parts
should be removed just before installation. It should be finished within 30 minutes.
From the process of removing compressor until the process of setting compressor and dryer
(just before vacuum pumping process).
CAUSE
Compressor broken
Compressor stop
Motor winding broken
Never re-use the pipes (example : charge pipe) which were once used for repairing CFC-12
refrigerant unit.
COMPRESSOR
FAULT
OO O
O
O
PART MUST BE CHANGE
PIPEDRYERCOMPRESSOR
OO D
O D
O O
OO D
D
O
D
O
D
Clogged by solid
material Inside of Inlet Eva.
Inside of Outlet Dryer O O
If gas charge fault cause solid material form, so compressor oil can not back flow to
compressor.
Clogged by liquid material
Gas Leakage*
Gas Charge fault ( example : CFC-12 ) CAN NOT REPAIRING
O
OO O
O
-7-

Caution :
-
-
1.
2.
3.
6.3. TOOL FOR REPAIRING REFRIGERATING UNIT HFC-134a
When the fitting for using CFC-12 is connected with the charge pipe (yellow), and then turn the
switch to be using CFC-12, the adaptor can be used for vacuum pumping of CFC-12
refrigerating unit.
Be sure to connect the adaptor with vacuum pump, so that it can be used for both CFC-12 and
HFC-134a.
Since the inside of manifold gauge and charge hoses are vacuum state after vacuum pumping,
the oil of vacuum pumping may flow into HFC-134a refrigerant unit. The adaptor prevents the oil
flowing into the refrigerating unit.
Before running the vacuum pump, connect the charge pipe (yellow) with the fitting for using
HFC-
1354a, and then turn the switch to be using HFC-134a.
Conventional repairing devices for CFC-12 can not connect with repairing devices for HFC-
134a. Because of the shape of fitting for HFC-134A (M10 x P1.5 mm) is different from
conventional ones.
-8-

6.4. REFRIGERATING UNIT REPAIRING PROCEDURE
STANDARD PROCEDURE
Diagnosing the trouble
Discharging the refrigerant
Removing the Compressor
Checking the compressor oil
A little discoloration
(light yellow) Severe discoloration (light brown)
Purging the pipe at
high-pressure side
Purging the pipe at
low-pressure side
Joining compressor and
accumulator assy'
Setting the compressor and the dryer
Vacuum pumping and pot the electric parts
Charging the refrigerant
Leakage test
Test Run
Pinch-off seal of charge pipes
Finish
Refer to the TROUBLESHOOTING
* For purging the pipe, use HFC-134a as liquid state.
* Never use HCFC-141b, HCFC-22 for purging.
* o not keep the pipes open to air more than 30 minutes.
These process in total should be finished within
30 minutes.
* Rubber caps should be removed just before
compressor is used. Never leave the compressor
without the caps and open to the air.
Be sure to connect the adaptor with vacuum
pump.
Charge cylinder should be exclusive -
use for
HFC-134a.
This is to prevent different refrigerant ( CFC-12,
HCFC-22, CFC-113, HFCFC-141b, R-502) from
mixing with HFC-134a.
IMPORTANT THINGS
* At first, remove the refrigerant by cutting gas
charge pipe.
Check compressor oil
-9-

6.5. METHOD TO REPAIRING REFRIGERATING UNIT
CONDITION I. NOT COLD
Compressor not run
CONDITION II. LESS COLD
Release socket CN
201 and connect black
- brown wire and grey -
blue wire, then connect
AC Cord with electric
current.
CHECK CAUSE SUSPECT ANALYSIS ACTION
Short the wires
Change PAS ControlCheck with M TesterPas Control brokenCompressor run
Compressor not run
Change PCB in PCC
Check with M Tester on
PCC
Thermistor broken
Change motor protector
Check with M TesterMotor protector broken
Change PTC RelayCheck with M TesterPTC Relay broken
Change compressorCheck with M TesterMotor winding broken
Compressor noise but
not run
Power source broken
(starting voltage was
not enough
PTC Relay broken
Motor winding
disconnected
Starting motor burnt
Check starting PTC
voltage under load
Check with M Tester
Check with M Tester
Repair power source
Change PTC Relay
Change compressor
Change compressor
Compressor noise but
not compress Cooling unit broken
Compressor less
compression
Gas leakage
Be found residual gas
No gas
Repair gas leakage and
recharge
Sprayed with gas
Check the pressure of
outlet compressor Change compressor
Change PAS LEDPCC brokenOperation fault
Short time
Long time
Check defrost
component
Defrost component
problem
Evaporator closed by
too much frost
Repair at cooling unit
portion
Cooling unit broken
Evaporator not closed
by frost
Door not close fully
Compressor running
Outside of
evaporator
Repair gasket with
dryer or adjust the door
Gasket door have big
gap
Check the gap
between gasket and
cabinet
Less cold Open the door for long
time
Joint pipe leakage or
clogged
Door have big gap Adjust the door
The load inside
refrigerator is over
Repair at cooling unit
portion
Check cooling unit
Give the direction to
customer
Give the direction to
customer
Grey wire
Grey wireGrey wire
Grey wireBlack wire
Black wireBlack wire
Black wire
Brown
Brown Brown
Brown
wire
wirewire
wire Blue
Blue Blue
Blue
wire
wirewire
wire
-10-