Haier DW-40L92 Manuel utilisateur

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W-40L188

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2/25

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Effective models

This service manual is effective for following models

Model name Product code Voltage(V) Frequency(Hz) Plug-type

DW-40L92 220 50 All

DW-40L188 220 50 All

DW-40L262 220 50 All

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3/25

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Content

【Designation】.......................................................................................................................................................... 4

【Safe Caution】......................................................................................................................................................... 5

【Product appearance】.............................................................................................................................................. 6

【Product Specifications】......................................................................................................................................... 8

【Components and Function Modules】.................................................................................................................... 9

【Disassemble Steps】............................................................................................................................................. 10

【Screen Control System】...................................................................................................................................... 13

【Control System Principle】................................................................................................................................... 16

【System Schematic Diagram】............................................................................................................................... 17

【System Circuit Diagram】.................................................................................................................................... 18

【Inspection and Maintenance Process for Typical Error】..................................................................................... 19

【FAQ&A】.............................................................................................................................................................. 20

【Troubleshooting】................................................................................................................................................. 21

【How to deal with poor cooling】.......................................................................................................................... 22

【Testing Date】....................................................................................................................................................... 23

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【Designation】

Regulationsfortypenaming:



Note:ratedvolumecanbethegrossvolumeoreffectivevolume;themanufacturercandecideitby

himaccordingtotheactualsituation.Theeffectivevolumevaluemustbemarkedonthenameplate

whethereffectivevolumeorgrossvolumeismarkedintheproductname.



Examples:

DW‐40L262meansthattheDeeptemperaturestoragerefrigeratorwiththetemperatureat

characteristictemperature‐40℃,horizontalandratedeffectivevolume262L.



DW XX X XXX X

Design No. is expressed with pinyin character

sequence

Rated volume value is shown with L

Classification of low temperature cabinet (W is

horizontal and L is vertical)

It shows the temperature at the characteristic point

inside cabinet (without minus mark)

(For example: temperature at the characteristic point

inside cabinet -40℃can be expressed as 40)

Low temperature cabinet

Deep temperature cabinet

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5/25



【Safe Caution】



1. The machine is using an AC 220V/50/60HZ power. If the voltage used is lower than 198V or higher

than 242V, an auto stabilizer above 1000W shall be equipped. Power line that required for lengthening

shall be with a cross section no less than 1mm.

2. An independent private jack shall be used and reliably connected. The power line for refrigerator is

equipped with three-wire, grounding-type plug which meets standard three-wire, grounding-type

receptacle. In no circumstance should the third plug foot (grounding) of the power line be cut or removed.

The plug shall be touchable after installation of refrigerator. Power line or plug with abrasion shall not be

used. Abraded or damaged power line shall be sent to maintenance point designated by the manufacturer

or be replaced by qualified personnel.

3. Hazardous articles of inflammable, explosive, materials such as acid and alkali with strong corrosion

are prohibited in the refrigerator.

4. Please don’t use flammable spray closely to avid fire.

5. When there is inflammable gas such as coal gas leakage:

● Shut the valve for leakage;

● Open the door and window for ventilation;

● Don’t pull out or insert power plug of the refrigerator.

6. Prevent children playing in the refrigerator to avoid accident.

7. Once the power of the refrigerator is cut, it shall be re-connected at least five minutes later to avoid

damage on compressor or the system. The power shall be cut for maintenance. Do not roll or damage the

power line.

8. Please wear protective equipments during accessing to the refrigerator to avoid freezing injury. When

the refrigerator is scrapped, please remove the doorman. The scrapped refrigerator shall be away from

fire and be sent to appointed site for disposition.

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【Product appearance】

Remark:

The press is located in the cabin on rear bottom of the refrigerator with cabin cover

The condenser is located at rear of the refrigerator.

The evaporimeter is located inside the refrigerator as rack

DW-40L262

Electronic control

assembl



Drawer

Doorhandle

Display

Doorseal



7/25



【Dimensions】

DW-40L92

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8/25



【Product Specifications】

Model DW-40L92 DW-40L188 DW-40L262

Climate type N N N

Protection type against

electric shock I I I

Effective volume (L) 92 188 262

Rated voltage 220V/50Hz/60HZ 220V/50Hz/60HZ 220V/50Hz/60HZ

Input power (W) 220 290 340

Net weight (kg) 46 63 84

Compressor DANFOSS SC12CL DANFOSS SC12CL DANFOSS SC12CL

Freezing agent R404A 160g R404A 220g R404A 220g

Outer dimension

(WxDxH) (mm) 597*610*860 597*610*1475 657*685*1665

Inner size (WxDxH) (mm) 435*410*635 380*410*1225 480*462*1430

Note: when surrounding temperature is 25℃, the inner lowest temperature for empty refrigerator can be down

to -40℃;

when surrounding temperature is higher than 32℃, the inner lowest temperature for empty refrigerator can be

down to -35℃;

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【Components and Function Modules】



1. Temperature control

It is controlled by microcomputer with digital display for temperature while the inner temperature can be

adjusted from -10℃～-40 ; there is parameter setting for super low temperature alarming and break℃

down memory.

2. Safety system

2 error alarming (high/low temperature alarming, sensor error alarming

2 alarming methods (sound buzzing alarming, red light alarming)

Starting up delay protection function

3. Refrigerating system

Imported famous brand DANFOSS compressor is adopted

Environment protection free refrigerant

German famous brand EBM fan

High density insulation layer with heat preservation

The evaporimeter is used as rack directly for speed refrigeration.

4. Humanity design

Drawer design for convenient utilization

LED digital temperature display for convenient observation

Broad voltage belt suitable for voltage of 187 ~ 242

Doorknob design for easy on and off

Trundle design for convenient motion

Gate locks design for safe storage



1. Replac

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b. Enlarge

c. Strain th

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

10/25

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uts

cers

process is

changed a

Ce manuel convient aux modèles suivants

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