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Haier DW-25L300 Service Manual

Manual is about: Deep Freezer-upright

Summary of DW-25L300

  • Page 1

    Service manual deep freezer-upright dw-25l92•dw-40l92•dw-40l188•dw-25l300•dw-40l262 haier medical & laboratory products co., ltd. Dw-40l92 dw-40l188 dw-40l262 file no: hmrsm-02-002.

  • Page 2

    2 / 33 effective models this service manual is effective for following models model name product code voltage(v) frequency(hz) plug-type dw-25l92 be02m9e0n 220-240 50 english standard 英式三扁(flat) dw-40l92 be02m8e0n 220-240 50 eu standard 欧式两圆一孔 be02m7e0n english standard 英式三扁(flat) dw-40l188 be02p1e1...

  • Page 3: Content

    3 / 33 content 【designation】 .......................................................................................................................................................... 4 【safe caution】.......................................................................................................

  • Page 4: 【Designation】

    4 / 33 【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 ...

  • Page 5: 【Safe Caution】

    5 / 33 【safe caution】 1. If the voltage used is 10% higher or lower than rated voltage, 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 ...

  • Page 6: 【Product Appearance】

    6 / 33 【product appearance】.

  • Page 7

    7 / 33.

  • Page 8

    8 / 33.

  • Page 9: Dimensions

    9 / 33 【 dimensions 】 dw-25 l92/ dw-40l92 dw-40l188 dw-25l300/dw-40l262.

  • Page 10

    10 / 33 【product specifications】.

  • Page 11

    11 / 33.

  • Page 12

    12 / 33 【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℃～-25/-40℃; there is parameter setting for super low temperature alarming and break down memory. 2. Safety syste...

  • Page 13

    13 / 33 5. Product graphical representation remark: for dw-25l92 series or dw-40l92 series, please take out the suite of lock catch from the accessory and install the lock catch on the left side of the box according to “lock catch installation instruction leaflet” the press is located in the cabin o...

  • Page 14: 【Disassemble Steps】

    14 / 33 . 【disassemble steps】 1. Install the handle ① .Align the handle to the screw hole on the door; ② .Use screw to fix the handle. 2. Disassemble steps for control board unscrew the following screws mark ed 1 and 2 in following figure, the control board can be fetched. Attention: there are wires...

  • Page 15

    15 / 33 the following is details for connection of computer board and ports; mark “1” in the above figure is connecting port for power line to connect power line; mark “2” in the above figure is sensor port to connect sensor line. 3. Installation steps for control board installation shall be accordi...

  • Page 16

    16 / 33 【screen control system】 1 external view of computer board 2 basic parameters for computer board rated power 3w control current for press under normal operation shall be no more than 10a the 30 seconds start delay for the first energization of press . In normal operation, each time it is shut...

  • Page 17

    17 / 33 8 temperature adjustment principle and alignment this machine adopts microcomputer controlled temperature control system to control on-off of the press. In electrified condition, the screen may display current temperature. If you want to change the set temperature, for example, change from -...

  • Page 18

    18 / 33 【control system principle】 1 working principle for press on and off when inner temperature reaches set temperature, induct the temperature by sensor and change into electrical signal which is sent to control chip of computer board. By pre-set procedure, the chip then sends out stop order to ...

  • Page 19

    19 / 33 【system schematic diagram】.

  • Page 20

    20 / 33 【system circuit diagram】.

  • Page 21

    21 / 33 【inspection and maintenance process for typical error】 problem points reason analysis maintenance measures 1. The press can not start 1. The fuse is burned out. Change the fuse 2. Connecting parts of cabinet is damaged. Change socket connector. 3. The connecting line for electric cabinet is ...

  • Page 22: 【Faq&a】

    22 / 33 【faq&a】 question answers measures able to adopt 1. Inner temperature is too high or too low. Can be resolved by adjusting and control of temperature. See detailed operation in instruction manual. 2. Sides of the refrigerator is hot. There is anticoagulant near refrigerator open on side surfa...

  • Page 23: 【Cooling Unit Parts】

    23 / 33 【cooling unit parts】 part decripetion parameter models parameter compressor dw-40l92/188 secop/danfoss nl7clx power 220-240v/50hz start capacitance 117u5015（80uf） compressor dw-40l262 secop/danfoss sc12cl power 220-240v/50hz start capacitance 117u5017（80uf） compressor dw-40l262 secop/danfoss...

  • Page 24: 【Product Nameplate】

    24 / 33 【product nameplate】.

  • Page 25

    25 / 33.

  • Page 26

    26 / 33 【refrigerant perfusion details】 type dw-40l92 dw-40l188 dw-40l262 （220-240v/50 hz /60hz） dw-40l262 （115v/60hz） dw-25l92 dw-25l300 r404a 150 210 220 200 r600a 52 90 [note] refrigerant type and weight of the nameplate subject shall not misuse of refrigerant..

  • Page 27: 【Troubleshooting】

    27 / 33 【troubleshooting】 fault analysis maintenance measures 1. Compressor fails to start 1. Machine storehouse wiring connector plugs s are damaged change the connector plugs 2. Bas wire contact check contact and make in good condition. 3. Display panel connection failure checking if it is due to ...

  • Page 28

    28 / 33 【how to deal with poor cooling】 high-temperature stage fan is normal low-temperature stage fan is normal refrigerator temperature ≥ high temperature alarm set temperature (high temperature alarm set temperature ≥ run set temperature +5 ° c) check the power is normal check the fan and the con...

  • Page 29

    29 / 33 【used spare parts photo gallery】 dw-25/40l262/300 exploded view dw-25/40l262/300 spare part list no. Code name qty 1 0060802007 screw 15m6*16 3 2 0060100278 seat of lower hinge q215-a5mm 1 3 0064240002 washer 65mn 1 4 0067113077 rotation shaft 15 1 5 0067744009 washer pa white 1 6 0060201602...

  • Page 30

    30 / 33 0075010051 compressor sc12cl(220-240v/50hz) dw-40l 0274000190 compressor sc12clx.2(220-240v/50hz/60hz) 1 dw-40l 0074091173 compressor sc12clx.2(115/60hz) 1 dw-40l 14 0070701909 dw-40l262 drier filter 1 15 0070401698 compressor wire 1 16 0072040045 wire connection box 1 17 0077050051 screw 4 ...

  • Page 31

    31 / 33 dw-25/40l92exploded view dw-25l92spare part list no. Code name qty 1 0060802007 screw 15m6*16 3 2 00609380634 seat of lower hinge 1 3 0064240002 washer 65mn 1 4 0067113077 rotation shaft 15 2 5 0067744009 washer of hinge 2 6 0270700332 evaporator 1 7 0060809635 foaming cabinet 1 8 0070104306...

  • Page 32

    32 / 33 14 0070401698 dw-40l188 compressor wire rvv3 ×0.75 1 15 0072040045 wire connect box 1 16 0077050051 screw 4 17 0070107165 cover of cabin 1 18 0060801078 screw 15b3.5*9.5 8 19 0067412381 built-in fitting of condenser pp 4 20 00605020261 condenser 1 21 0067266077 inner pipe suit pvc 2 22 00602...

  • Page 33: Inspired Living

    33 / 33 inspired living haier medical & laboratory products co., ltd. Room 403d, brand building, haier industrial park, no.1 haier road qingdao china website: www.Haiermedical.Com.