Haier DW-150W200, Operation Manual

Page 1: ...rd Adjustment 9 Maintenance Servicing Defrosting Non use 12 Cleaning 13 Q A 14 After sales Service 15 Technical Parameter Schematic Circuit Diagram 18 Please read this manual carefully before using the freezer Please keep this manual in a safe place for future reference The freezer is designed for preserving various articles at low temperature for such departments as clinic medicine scientific res...

Page 2: ...eezer may cool samples stored in it down to required temperature in a shorter time ensuring samples safety super fast refrigeration may also ensure much faster temperature recovery after door opening to prevent samples from accidental damage or necrosis This advantage is especially important for those users preserving stem cells Even internal temperature allows 100 space to be used efficiently Des...

Page 3: ... this manual carefully before use and follow the operation procedures as described in this manual Our international star level service will accompany with you all the time Any problem in use please contact us via the telephone number and address given on the warranty card We are willing to serve you at any time Thank you again for choosing Haier products and recommending them to other people Haier...

Page 4: ...r connection 7 In case of frequent occurrence of unstable voltage or below rated voltage a voltage stabilizer should be installed Precautions for operation 1 After its installation or handling the freezer must be left still at least 24 hours before being energized 2 The freezer must operate at initial temperature setting 126 for over 24 hours 3 After the freezer operates for 24 hours stably at ini...

Page 5: ...s required to open doors and windows or turn on the air conditioning system while in the case of ambient temperature above 32 it is forbidden to use the freezer otherwise that may result in compressor burn out Warning 1 Do not load the freezer with samples over 1 5 of its capacity at a time 2 Do not put large volume liquid samples or hot articles into the freezer 3 Do not leave the door open for o...

Page 6: ...od ventilation the freezer should be at least 30cm away from a wall or other objects otherwise the heat produced by its compressor may not be dispersed in time resulting in the reduction of condenser s cooling effect even compressor burn out in case of overload 5 The supply voltage should be within the range of 380V 50Hz 10 or 220V 50Hz 10 In case of frequent occurrence of unstable voltage a volta...

Page 7: ...wer supply strictly following the requirements specified in the product s label and have qualified installation personnel carry out wiring Note the capacity of distribution system must be higher than the rated capacity of freezer and the freezer must be reliably grounded It is strictly forbidden to connect earth wire and null line otherwise the freezer may be electrified and cause personal injury ...

Page 8: ...he freezer What s worse that may result in destroy of samples and compressor burn out Furthermore it is advisable to put fewer samples into the freezer at a time Note 1 Do not put all the samples into the freezer at a time but put 1 5 each time at an interval of 24 hours 2 Be sure to wear special gloves in handling samples to avoid frostbite Preparations required by safe samples storage For safe s...

Page 9: ...cation In case of any fault required alarm alarm is carried out by flashing light alarm signals and audible buzzer alarm The former can not be cancelled until the fault clearance while the latter can be silenced by pressing the Cancel buzz key A High temperature indicator light on as an alarm indicates internal temperature is higher than the high temperature set point B Low temperature indicator l...

Page 10: ...r installation the freezer must be left still for over 24 hours before being energized 1 Initial state upon power on Turn on the battery switch at rear upper of compressor compartment the SLT freezer is energized and enters into the power on state and all the parameters are the data before last power failure and the display indicates actual temperature The temperature setting is 126 when the freez...

Page 11: ...e alarm setting press the Function selection key continuously until the Low temperature alarm setting indicator light is on at which time the display screen will indicate temperature setting and the digits flash and then change temperature setting by pressing or to increase or decrease the value specifically speaking the value will increase or decrease by 1 if press or intermittently while the val...

Page 12: ...oss resulting from faults of the freezer 1 The freezer must not be installed in a narrow space and the door of room where it is installed must not be smaller than the freezer but at least ensure normal handling to avoid such problems as difficult servicing failure to repair it in time and damage of articles stored in the freezer etc 2 The freezer should be attended by a qualified person and its op...

Page 13: ... place 3 After defrosting remove the resultant water with a soft cloth or sponge wipe it with a dry cloth and then turn it on and finally load it with articles upon reaching the temperature setting 4 To speed up defrosting a flat bottom container filled with warm water below 50 may be put inside of the cabinet Non use If the freezer is not to be used for a long time power supply should be cut off ...

Page 14: ...compressor compartment condenser compressor and other pipelines should be removed with a soft cloth or a banister brush soft hair brush to keep optimal refrigeration effect When cleaning be careful not to damage pipelines and circuits The condenser should be dusted out at least every 3 months Do not clean the freezer with organic solvent boiling water detergent powder or acid etc Do not flush the ...

Page 15: ...for a long time or give out loud noise etc That is not a fault but normal phenomenon It is normal that the condenser fan starts and stops automatically according to ambient temperature It is normal that there is fluid flow noise from the freezer arising from the cycle flow of refrigerant in its pipeline ...

Page 16: ...r 220V 10 beyond which it is recommended to install a voltage stabilizer If the freezer is installed in a closed room with air conditioning system it may be damaged due to a steep rise of ambient temperature in case of air conditioner failure especially on festivals and holidays or at night so a monitoring system should be installed Emergency measures In case of any fault or any other emergency 1 ...

Page 17: ...rature setting from 126 by following corresponding operating instructions Cause 6 The samples loaded at a time are over 1 5 of the freezer s effective capacity or the samples loaded are too hot 20 higher than the temperature setting e g the samples temperature is 106 or above and the temperature setting is 126 In this case the load of freezer greatly increases so the compressor works for a prolong...

Page 18: ...B Solution Do not use it in offices or laboratories where people stay for long Cause 2 Fan motor Check Check whether the noise is from compressor or fan motor The noise from compressor is for the fan motor s efficiency reduces and fails to cool the compressor effectively Solution Replace the fan motor Cause 3 The compressor pressure increases due to dirty or clogged condenser lowering refrigeratio...

Page 19: ...cement of parts only cost and freight are charged and no charge on service is required to pay The freezer enjoys Haier star level service If there is any problem Haier will provide door to door service in 24 hours Due to the particularity of both super low temperature SLT products and articles stored the servicing and commissioning period is normally 15 days For better use we strongly recommend us...

Page 20: ...erature 150 Compressor 3 5HP Operating temperature range 126 150 Rated current 2 phase 19A 3 phase 11A Rated voltage 380V 50Hz or 220V 50Hz Weight 315kg Temperature decreasing curve reference DW 150W 200 curve it is required to check the temperature decrease time not including pre cooling delay time according to the ex factory inspection requirements ...

Page 21: ...21 24 Packing List Qty Description Model Warranty Card Operation Manual Frost scraper Plastic bag DW 150W200 1 1 1 1 ...

Page 22: ...22 24 Schematic Circuit Diagram ...

Page 23: ...23 24 Schematic Refrigeration Diagram ...

Page 24: ...umidity is 80 the max relative humidity decreases in a linear manner as temperature rises max relative humidity decreases to 50 upon reaching 40 5 The voltage fluctuation of main power supply is not over 10 of its rated voltage 6 Additional fluctuation range of power supply voltage specified by the manufacturer 7 Up to the transient voltage of Equipment Installation Category Over voltage Category ...