Panasonic NR-AF172SNAE Manuale utente

SPECIFICATION *)

Model

Voltage

Frequency

Input

Ampere

Oil Charge

Refrigerant Charge ( NON-CFC)

Temperature Control

Defrosting System

Cooling System ( Evaporator )

Dial Position

FC Room (

)

PC Room (

)

Blowing Agent

Thickness Insulation

Capacity (Liters)

Color Wide

Depth

Height

Net Weight **)

*) Specification subject to change without prior notice.

**) Weight and dimension are actual condition.

Manufactured for Panasonic Corporation

Manufactured by PT Panasonic Manufacturing Indonesia, Jakarta

Made in Indonesia

-9.0 ± 2.5

3.0 ± 2.5

Order No.: PMIRF1303026C3

Refrigerator

Manual Service

195 ± 5 ml ( Freol Alpha - 22 )

50 Hz

220 - 240 Volt ~

85 W

0.63 - 0.74 A

Direct Cooling ( Roll Bond Evaporator )

Manual Defrost Start - Manual Defrost Stop

Dial Adjustment

NR - AF172SNAE

NR - AF172SNWG

NR - AF172SNAE NR - AF172SNWG

80 ± 5 gram ( HFC-134a )

27 Kg

160 Liter ( FC = 19 Liter )

Polyurethane

40 mm

525 mm

1201 mm

Champagne ( Starlight Silver )

Cooling Performance

( AT 32

C )

510 mm

Cabinet Dimension

( External Dimension)

Cold

-5.0 ± 2.5

6.0 ± 2.5

Coldest

-16.0 ± 2.5

-3.0 ± 2.5

Colder

-1-

Content:

No.

Items

Page

I. Safety Cautions for Repairing 3

II. Part Identification 4

III. Dimension 4

IV. Installation 5

V. Schematic Diagram 5

VI. Wiring Diagram 6

VII. Cooling Circulation and Main Component Function 6

VIII. Repairing Devices Which are Exclusive - Use for HFC-134a Refrigerant 7

IX. Repairing Standard for Refrigerating Unit HFC-134a 7

X. Tool for Repairing Refrigerating Unit HFC-134a 8

XI. Refrigerating Unit Repairing Procedure 9

XII. Method to Repairing Refrigerating Unit 10 ~ 18

XIII. Safety Check 19

XIV. Instruction to Assembly Parts 20

XV. Part List 21 ~ 22

XVI. Packing Instruction 23

-2-

I. Safety Cautions for Repairing

When you repair refrigerator, please kindly take care of following cautions.

a) Warning

Before repairing unit, unplug service cord

●

Before you repair refrigerator, unplug the service 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 voltageof 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 service cord and earth.

●

When install refrigerator, check condition of service 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-

II. PART IDENTIFICATION

III. DIMENSION

BOTTLE SHELF

EGG SHELF

CRISPER

DOOR EVA.

LEG SHELL

ICE TRAY

BOX CONTROL

COVER CRISPER

TRIM EVA

ADJUSTER BOLT

UTILITY SHELF

EGG TRAY 8

CHILLED CASE

COVER LAMP

TRAY PC

(NR-AF172SNWG)

SHELF NET PC

(NR-AF172SNAE)

-4-

IV. INSTALLATION

V. SCHEMATIC DIAGRAM

Do not expose the refrigerator to the direct

sunlight and keep away from heat emitting

sources.

Placement, make sure that circulation of the

air where the Refrigerator should be at least

10 cm, both side 12 cm, and top 10 cm.

Make sure that the refrigerator is placed on a

hard and level surface to prevent vibration

and noise. If one of the legs does not touch

the floor, adjust the adjustable leg (Adjuster

Bolt) to stabilize it.

Caution:

Adjuster Bolt

Minimum

10 cm

Back side

More than

12 cm

More than

10 cm

More than

12 cm

- 5 -

VI. WIRING DIAGRAM

VII. COOLING CIRCULATION AND MAIN COMPONENT FUNCTION

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 lower down the refrigerant temperature, so it is liquified with same pressure.

3. PIPE MULLION DRYER

4. DRYER

5. CAPILLARY TUBE

6. EVAPORATOR

7. SUCTION PIPE

The function is to pass the low pressure gas

to compressor.

The function is to prevent from sweating.

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 reduce the pressure of

liquid refrigerant so that make the

temperature of refrigerant low.

The function is to store cold air to refrigerator

so the refrigerant change phase become

gaseous with low pressure .

NR-AF172SNWG

NR-AF172SNAE

-6-

VIII. REPAIRING DEVICES WHICH ARE EXCLUSIVE - USE FOR HFC-134a REFRIGERANT

Important Notice:

1. Use repairing devices which are exclusive-use for HFC-134a refrigerating unit.

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.

IX. REPAIRING STANDARD OF REFRIGERATING UNIT HFC-134a

1. OMust be done

∆Need to done if Compressor Oil dirty and Quality no good (color changed)

2. 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

Clogged by solid

material Inside of Inlet Eva.

Inside of Outlet Dryer

∆

∆∆

∆

∆∆

∆O O

O∆

∆∆

∆

O O

∆

∆∆

∆

OO∆

∆∆

∆

OO∆

∆∆

∆

COMPRESSOR

FAULT

CAUSE

Compressor broken

Compressor stop

Motor winding broken

Noise up normal

Motor burning

Never re-use the pipes (example: charge pipe) which were once used for repairing CFC-

12 refrigerant unit.

PART MUST BE CHANGE

PIPADRYERCOMPRESSOR

This refrigerator use Compressor with Ester Oil. Ester Oil employed as new compressor oil

for refrigerant HFC-134a.

Ester Oil is characteristic of higher hygroscopicity. 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. Ester 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.

From the process of removing compressor until the process of setting compressor and dryer

(just before vacuum pumping process).

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.

-7-

Caution:

X. TOOL FOR REPAIRING REFRIGERATING UNIT HFC-134a

When the fitting for CFC-12 use is connected with the charge pipe (yellow), and then turn

the switch to CFC-12 use, the adaptor can be used for vacuum pumping of CFC-12

refrigeratirng unit.

Be sure connect the adaptor with vacuum pump, so it that the vacuum pump 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 from flowing into the refrigerating unit.

Before running the vacuum pump, connect the charge pipe (yellow) with the fitting for HFC-

1354a use, and then turn the switch to HFC-134a use.

Conventional repairing devices for CFC-12 can not connect with repairing devices for HFC-

134A. Because the shape of fitting for HFC-134A (M10 x P1.5 mm) is different from

conventional ones.

Coupler Plug ( High Pressure Side ) 4mm

Coupler Socket

Coupler Plug ( Low Pressure Side ) 6.33 / 8mm

Process-Tube-Fitting

( 6.35 mm )

Process-Tube-Fitting

( 4 mm )

Charge Adaptor

Charge Cylinder

Blue

Yellow

Adaptor

Red

Manifol Gauge

Control Valve

Charge Hose

Vacuum Pump

(for CFC-12/HFC-134a)

Fitting for Vacuum Pump

Fitting for

CFC-12

Switch

( CFC-12 / HFC-134a )

Fitting for

HFC-134a

-8-

XI. 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

-9-

XII. METHOD TO REPAIRING REFRIGERATING UNIT

CONDITION I. NOT COLD

Compressor not run

CONDITION II. COLD LESS

CONDITION III. VERY COLD

Both terminal direct

joining

Compressor run

Compressor not run

Compressor run Check with Ohm

Meter ( Tester ) Change Thermostat

OLP broken Check with M.Tester Change O L P

Starting PTC broken Check with M.Tester Change Starting PTC

Motor winding burn Check with M.Tester Change Compressor

Compressor noise but

not run

Power source broken

(Start Voltage not

enough )

Starting P.T.C. broken

Motor winding

disconnect

Starting Motor burn

Check Starting

P.T.C. Voltage under

load

Check with

M.Tester

Check with M.Tester

Repair Power Source

Change PTC Starting

Change Compressor

Cooling Unit brooken Gas leakage Be found gas residu

Repair gas leakage and

re-charge

Gas nothing Spray with gas

Compressor run but

not compress

Short time Operation fault Thermostat broken Change Thermostat

Compressor running Long time

Out side Evaporator Evaporator closed by

frost to more

Evaporator not close

by frost

Very Cold Touch Defrost button

Cooling Unit broken Repair at cooling unit

portion

Joint pipe leakage

and clogged

The door have more

gap

Open the door very

long time

Cold Less

Check Cooling Unit Repair at cooling unit

portion

Adjust the door

Give the direction to

customer

Censor cappilary

Thermostat have

more gap

Thermostat broken

Thermostat not have

voltage

Assembly censor

cappilary Thermostat Check with M.Tester

Setting end of Censor

at center hole

Change Thermostat

Repair Thermostat

wiring

Check with M.Tester

CHECK CAUSE SUSPECT ANALYSIS ACTION

-10-

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