Panasonic NR-B53V2 User manual

© 2013 Panasonic Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
Order Number VESR1309001CE
Refrigerator-Freezer
Model No. NR-B53V2
Model No. NR-B53VW2
Product Color X: Stainless, W: White
Destination E: Pan-European, F: France, B: U.K.
Model No. NR-BG53V2
Model No. NR-BG53VW2
Product Color X: Stainless, W: White
Destination Germany
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 2
2 Specifications ----------------------------------------------------- 5
3 General/Introduction -------------------------------------------- 7
4Features------------------------------------------------------------- 8
5 Technical Descriptions ----------------------------------------17
6 Location of Controls and Components ------------------25
7 Installation Instructions ---------------------------------------28
8 Test Mode ----------------------------------------------------------38
9 Service Mode -----------------------------------------------------39
10 Troubleshooting Guide ----------------------------------------45
11 Disassembly and Assembly Instructions ---------------52
12 Maintenance-------------------------------------------------------66
13 Dimensions ------------------------------------------------------- 69
14 Schematic Diagram -------------------------------------------- 71
15 Exploded View and Replacement Parts List ----------- 72

2
1 Safety Precautions
The following are instructions that you must follow in order to prevent accidents during work, and to ensure the safety of the repaired
product.
Hazard and damages that may result from ignoring instructions are classified and explained, below.
The following labels describe the types of rules that need to be followed.
This section warns of the urgent danger of death or serious injury.
This section warns of the risk of death or serious injury.
This section warns of the risk of injury or damage to property.
This label shows a “reminder” action to be paid attention to.
This label shows a “prohibited” action.
This label shows a “compulsory” action to be followed without fail.
Be sure to discharge remaining refrigerant from the refrigeration unit.
Discharge refrigerant outdoors where there is no fire source.
Be sure to instruct the customer not to approach the place of discharge, and not to use fire.
Always use a pipe cutter for removing pipes.
If you use a welding machine, the refrigerant remaining in the pipe or compressor could catch fire and explode.
Pipes must be blown out with nitrogen before welding, to discharge any remaining refrigerant.
Always use the swage lock for sealing after filing with refrigerant.
If you use a welding machine, the refrigerant could catch fire and explode.
Ventilation close to the floor surface is required, as the refrigerant(R600) is heavier than air.
In particular, the basement must be adequately ventilated.
“Measurement/adjustment of refrigerant refill quantity” in a service must be performed outdoors where
there is no fire source.
Otherwise, you could run the risk of fire/explosion.
Use always a gas alarm.
If any refrigerant remains in work area, there will be a risk of fire/explosion.
Never use a naked flame in a place where any refrigerant might remain.
Do not leave the removed faulty compressor in doors.

3
Before repair
Make sure to cut off the power line before disassembly, parts replacement and assembly.
Otherwise, electrical shock or injury may occur.
Be careful of electrical shocks
Be careful of electric shock from live parts or electrical lead terminals when conducting voltage measurement and other
electrical servicing.
Voltage of the control board is approximately 280V when power is ON.
Do not touch live parts.
When replacing parts, do not touch live parts for at least 3 minutes after disconnecting the plug from the power supply.
(A little time is required for electrical discharge of the condenser)
Use only fuses specified
When replacing fuses, use only specified in the circuit diagram. The use of non-specific fuses may cause fire or
malfunction.
Punch the pipes of the faulty compressor securely.
Otherwise, the refrigerant remaining in the compressor oil might leak out during transporting and could catch fire and
explode.
Discharge refrigerant completely from the used service can for disposal in an outdoor place where there
is no fire source.
Otherwise, you could run the risk of fire/explosion.
Do not damage the refrigeration circuit (piping) of the refrigerator.
As the refrigerant is flammable, any damage could lead to fire/explosion.
If the refrigeration circuit is damaged, do not touch the refrigerator or use a naked flame. Open windows
for Ventilation.
As the refrigerant is flammable, any damage could lead to fire/explosion.
Disposal of a faulty compressor must be performed outdoors where there is no fire source.
The quantity of refrigerant in a service can carried in the vehicle must be the least possible, and below the
[regulation][regulated] limit. Keep the service can upright and below 40C. (Quantity on board: 1.5kg or
below)
Use a designated part
Make sure to use a designated part when the part is marked( ) in circuit diagrams and parts lists.
Otherwise, smoke, fire or failure may occur.
Always conduct a safety inspection after completing service
And check the parts are reassembled correctly. Also confirm other fixings and wiring, for deterioration. Replace as required.
Always use a megohmmeter to measure the insulating resistance between both terminals of the power plug and the earth
terminal, and plug the power supply in after first confirming 1Mor above.
When setting, check that the power cord or power plug is not jammed or pushed against the rear of the refrigerator.
If the power cord or the power plug is damaged or loose, take appropriate measures such as replacing.
If the pins of the plug or the area the pins attach to are dirty, make sure they are cleaned thoroughly.

4
Install and remove glass shelving securely to prevent risk of injury
When moving, raise the adjustable legs
Dragging the refrigerator will damage the floor. For flooring that may become easily damaged put a protective board in
place.
Do not scrape the metal rails
Take care of very hot parts
The compressor, pipes, etc. can be very hot during operation and directly after stopping. Also, the heater can be very hot
during power supply and immediately after power supply is stopped. Be careful not to burn yourself by touching very hot
parts.
Take care of very hot parts after welding
Pipes, etc., are very hot after welding. Be careful not to burn yourself by touching very hot parts.
Take care when filling/discharging refrigerant
Liquid refrigerant directly touching the skin may cause frostbite.
Take care of burrs
Be careful not to cut yourself on metal or plastic burrs.
Take care of condenser/evaporator fins
Be careful not to injure yourself on the fin edges.

5
2 Specifications
Model NR-B53V2, NR-BG53V2, NR-B53VW2, NR-BG53VW2
Destination UK Europe except UK
Rating volume capacity
Total gross volume 615L
Total net volume 530L
Net refrigerator volume 324L
Net freezer volume 206L
External dimensions width/depth/height (mm) W905 x D710 x H1860
Internal dimensions PC: width/depth/height (mm) W421 × D505 × H1664
FC: width/depth/height (mm) W315 × D401 × H1642
Installation size
Side: 25mm or above
Back: 50mm or above
Top: 30mm or above
Power supply plug & cord Volt/Freq 230-240V/50HZ 220-230V/50HZ
Interior lamp (LED) Rating 7W
IEC protection against electric shock classes Class 1
Class SN-T
Sensor def.fc DFC B=3819K, R(10C)=3.899K
Sensor def.pc DPC B=3819K, R(10C)=3.899K
Sensor fc FCC B=3850K, R(-20C)=18.9K
Sensor pc PCC B=3808K, R(0C)=6.409K
Sensor sc SCC B=3808K±2%, R(3C)=7.490K
Sensor ice ICC B=3754K, R(-20C)=22.33K
sensor ATC ATC B=3435K, R(25C)=10.0K
FC PIPE HEATER 389/136.0-148.1W (230-240V) 355.9/136.1-148.6W (220-230V)
FC DRAIN HEATER 3345/15.8W (230V)
FC COIL BAC/FC ACCUME HEATER 3538/15.0W (230V)
PC DRAIN HEATER 3100/17.1W (230V)
PC BACK HEATER 6000/8.8W (230V)
PC PLATE HEATER 9680/5.5W (230V)
TANK HEATER 6000/8.8W (230V)
DISPENSER HEATER/
DISPENSER T HEATER 6560/8.0W (230V)
WATER SUPPLY HEATER 15452/3.4W (230V)
LAMP HEATER 9160/5.8W (230V)
ICE MAKER A'SSY EAU37119712 (230-240V) EAU37119711 (220-230V)
ICE SHUTTER STAA125A01 (DC12V)
Compressor
Type Full hermetic reciprocating system
Model EFI120E13DGH-COEMS
Rotation speed 25/33/42/52/67/75 (r/s)
3 Way valve Model SDF 0.8 3/2-4.3
Rating 240V/50HZ/0.3W
Water valve Model RIV-23A-81/X-1871
Rating 240V/50HZ
Overload relay
Model MM3-71CCY
Operating temperature 100±5C
Return temperature 61±8C
Operating current (A) 7.1A±7.5%
Fan motor(for Refrigerator compartment) Model/Rating FBA11J14VXJ/DC 14V below 3.36W
Fan motor(for Freezer Compartment) Model/Rating FBA11J14VXJ/DC 14V below 3.36W
Fan motor(for Compressor Room) Model/Rating 4715JL09WS29G51/DC 11.5V below 2.19W
SINGLE DAMPER Model/Rating NSBC000/DC12V, 300pps
Defrost heater Rating/Voltage 195W (230V)-212W (240V) 190W (220V)-208W (230V)
Thermal fuse Rating 250V/7A/73C 250V/7A/94C
Oil charge S10/215±5ml

6
*1 : The amount of Ice Making Ability in 24 hours. Setting temperature, PC : 4C, VC : 1C, FC : -25C
*2 : The Freezing Ability in 24 hours. VC temperature is set to 1C, and in state of Super Freeze.
*3 : Values of the Energy Consumption in year.
*4 : This Measurement of Exterior Noise Emitted is measured by OFF condition of PC Fan Motor for Deodorizer.
Ice making ability*1 0.7kg/24h
Freezing ability*2 15.0kg/24h
Amp. Rating 1.2A
Values of the energy consumption*3 346kWh/y
Energy effciency grade A++
Refrigerant charge R600a,70g
Measurement of exterior noise emitted*4 38dB(A)
Form polyurethane Cyclo pentane
Weight (Kg) 132kg

7
3 General/Introduction
3.1. Flow of Refrigerant

8
4Features
4.1. Features
4.1.1. Inverter Technology
4.1.2. Vacuum Insulation Panel

9
4.1.3. Optimum Humidity Control
4.1.4. Powerful Cooling

10
4.1.5. LED Tower Lighting
4.1.6. Refrigerator Cases with Different Setting

11
4.1.7. Other Storage Solutions

12
4.1.8. Wide and Spacious Freezer Compartment

13
4.1.9. Drawer Compartments of Freezer Compartment
4.1.10. Humidity Control

14
4.1.11. Selectable Temperature Control
4.1.12. Vitamin LED

15
4.1.13. Hygiene Active
4.1.14. Multi-Hygienic System

16
4.2. Functions

17
5 Technical Descriptions
5.1. Temperature control for each compartment
5.1.1. FC temperature control
The compressor is turned on and off and 3-Way Valve Controlled, detecting the FC temperature.
Operation: The setting temperature “-25C” to “-17C”, 9 levels change
Detection: FCC, ATC sensor
1. When power supply is turned on, FC temperature is displayed on the panel PCB by reading FC setting data of micro-
computer memories. The data is written in memory area of microcomputer, 5 seconds after FC setting change. After
that, FC temperature is controlled by setting FC temperature of the panel PCB.
The FC setting data is memorized, though the power supply of this product is turned off. The setting temperature is
fixed, after the time to have set temperature change passed more than 5 seconds.
2. The setting temperature
The temperature, when it set on -21C
The OFF/ON temperature value corresponding to each ATC temperature is as shown in the next table.
3. OFF/ON temperature according to FC temperature setting
The OFF/ON temperature corresponding to each FC temperature setting is as shown in the following tables.
*: TFOFF and TFON that exist in the following table are considered the temperature calculated by
the OFF/ON temperature value at -21Csetting.
5.1.2. PC temperature control
The compressor is turned on and off and 3-Way Valve Controlled, detecting the PC temperature.
Operation: The setting temperature “1C” to “7C”, 7 levels change
Detection: PCC, ATC sensor
1. When power supply is turned on, PC temperature is displayed on the panel PCB by reading PC setting data of micro-
computer memories.
The data is written in memory area of microcomputer, 5 seconds after PC setting change. After that, PC temperature
is controlled by setting PC temperature of the panel PCB. The PC setting data is memorized though the power supply
of this appliance is turned off.
ATC correction temperature Turning off temperature
(OFF temperature)
Turning on temperature
(ON temperature)
40C or above -23.4C -19.4C
11C to 39C -23.4C -19.4C
10C or below -23.4C -19.4C
ATC correction temperature Turning off temperature
(OFF temperature)
Turning on temperature
(ON temperature)
(-17C) setting TFOFF + 4CTFON+4C
(-18C) setting TFOFF + 4C (3 / 4) TFON + 4C (3 / 4)
(-19C) setting TFOFF + 4C (2 / 4) TFON + 4C (2 / 4)
(-20C) setting TFOFF + 4C (1 / 4) TFON + 4C (1 / 4)
(-21C) setting TFOFF TFON
(-22C) setting TFOFF - 4C (1 / 4) TFON - 4C (1 / 4)
(-23C) setting TFOFF - 4C (2 / 4) TFON - 4C (2 / 4)
(-24C) setting TFOFF - 4C (3 / 4) TFON - 4C (3 / 4)
(-25C) setting TFOFF - 4CTFON-4C

18
2. The setting temperature
The temperature, when it set on 4C.
The OFF/ON temperature value corresponding to each ATC temperature is as shown in the next table.
3. OFF/ON temperature according to PC temperature setting
The OFF/ON temperature corresponding to each PC temperature setting is as shown in the following tables.
Moreover TPOFF and TPON that exist in the following table are considered the temperature calculated by the OFF/
ON temperature value at 4Csetting.
*: TPOFF and TPON that exist in the following table are considered the temperature calculated by
the OFF/ON temperature value at 4Csetting.
ATC correction temperature Turning off temperature
(OFF temperature)
Turning on temperature
(ON temperature)
40C or above 9.1C11.8C
11C to 3C 8.1 -
(8.1 - 9.1) 
(ATC correction temperature - 33)/
(40-33)
11.1 -
(11.1 - 11.8) 
(ATC correction temperature-33)/
(40-33)
33C or above 8.1C11.1C
11C to 33C 7.0 -
(7.0 - 8.1) 
(ATC correction temperature - 21)/
(33-21)
9.0 -
(9.0 - 11.1) 
(ATC correction temperature-21)/
(33-21)
21C or above 7.0C9.0C
11C to 21C 6.0 -
(6.0 - 7.0) 
(ATC correction temperature - 10)/
(21-10)
7.5 -
(7.5 - 9.0) 
(ATC correction temperature-10)/
(21-10)
10C or above 6.0C7.5C
ATC correction temperature Turning off temperature
(OFF temperature)
Turning on temperature
(ON temperature)
(7C) setting Tfoff + 2.0C TFon + 2.0C
(6C) setting Tfoff + 2.0C (2 / 3) TFon + 2.0C (2 / 3)
(5C) setting Tfoff + 2.0C (1 / 3) TFon + 2.0C (1 / 3)
(4C) setting Tfoff TFon
(3C) setting Tfoff - 3.0C (1 / 3) TFon - 3.0C (1 / 3)
(2C) setting Tfoff - 3.0C (2 / 3) TFon - 3.0C (2 / 3)
(1C) setting Tfoff - 3.0C TFon - 3.0C

19
5.2. FC Defrost Control
FC defrost control is performed with the internals of a definite period of time.
1. When Power Supply Is Turned On.
When power supply is turned on and 4 hours passes, FC defrost control begins.
If when the power supply is turned on, FCC temperature 25°C or above and add the condition, ATC correction
temperature 25°C or above, and 12 hours later FC defrost control begins.
2. Normal operation
• ATC correction temperature 19°C or above.
13 hours later when the FC defrost control had done, it begins again.
• ATC correction temperature 18°C or below.
28 hours later when the FC defrost control had done, it begins again.
3. End
•FC defrost control ends when the DEF temperature 10°C or above from the last time operation had done.
5.3. PC Defrost Control
1. FC and PC Defrost simultaneous control.
• PC defrost control begins the same time till FC defrost control begins.
• PC defrost heater never turns off till FC defrost control ends.
2. PC defrost control (not FC defrost control is performed)
• About 5.5 hours had passed after FC defrost control ends, PC defrost heater turns on the case, FC cooling mode or
compressor off mode.
• The DFP reaches 2°C or above, PC defrost heater turns off. However PC defrost heater turns on at least 10 minutes.
• PC defrost single control is not perform, before FC defrost control begins.
5.4. 3-Way Valve Control
Cooling Mode Change is controlled by detected temperature of PEC, FCC, PCC, SCC.
5.4.1. When Power Is Turned On
After power supplied and about 5 seconds passed, PC side opens 1 second, and FC side opens 1 second, and change to
the PC cooling mode for 10 minutes.
5.4.2. Basic Control
Basically 3-way valve operation of each mode as shown under the below.

20
5.5. Compressor Rotational Speed Control
1. When power is turned on, rotational speed is fixed 42 (r/s) for 10 minutes.
2. The use rotational speed.
Compressor rotational speed decided by the ATC temperature.
•Each ATC temperature condition, for the first step, it starts the lowest rotational speed of available range.
•If the temperature difference is big between PCC and FCC, the rotational speed changes one rank up.
5.6. Compressor Starting Control
The compressor is not start while waiting timer is operating.
And when power is turned on, compressor starting control is not available.
5.7. Compressor Fan Control (for cool down the Compressor)
Acording to the compressor rotational speed, compressor rotation speed controlled under the below.
ATC temperature Compressor rotational speed
25 r/s 33 r/s 42 r/s 52 r/s 67 r/s 75 r/s
22C below O O O O
23 ~ 28C OOOOO
29 ~ 32C OOOOO
33C above O O O O
After power turning on 0 minute
After FC Defrost stopping (Improvement of start after defrost) 10 minutes
After compressor stopping (Prevention of trip when re-starting) 10 minutes
Inverter protection 10 minutes