Haier DW-150W200 - Manuals

5-24 samples into the freezer in batches and pre-cool those hot samples fully before putting them into the freezer. In case of handling or moving, only after the freezer is left still for over 24 hours can it be energized to operate, otherwise result in serious damage to the freezer, even compressor...

7-24 Preparations and Operation Procedures When handling, it is strictly forbidden to overturn (upside down) the freezer; never allow its angle of inclination over 45° to avoid oil spill onto the system pipeline. Note: If the freezer is excessively inclined or upside down, compressor oil would spill...

8-24 Samples storage and instructions Only after the freezer operates stably after commissioning and making sure that internal temperature meets storage requirements can samples be put into the freezer in batches. The freezer must not be loaded with samples over 1/5 of its effective capacity at a ti...

9-24 Control board Adjustment Functions and operating instructions of the SLT freezer control board ● Temperature display A large display screen indicates actual internal temperature. A small display screen indicates current input voltage (no voltage indication for 3-phase power). Another small disp...

10-24 H. “Low battery charge” indicator light “on” indicates the battery is at low charge and must be recharged; when connected to AC power supply, the SLT freezer charges the battery automatically. ● Key definition: There are 4 keys on the temperature control board. With the “Locked” indicator ligh...

12-24 2.8 If the freezer is required to reach its minimum temperature, e.g. –150 , ℃ please do as follows: make sure that ambient temperature is below 25 , ℃ and then set the temperature at –145 ℃ and observe for 5~7 days for stable working state and starting/stopping. If stable, change the temperat...

13-24 Defrosting · Non-use Defrosting 1. After the SLT freezer is used for some time, a layer of frost may be formed; if too thick, it would influence the refrigeration effect and increase power consumption. Therefore, the freezer must be defrosted at certain interval, that is, upon the thickness re...

14-24 Cleaning Cleaning and maintenance The freezer should be cleaned after unpacking but before initial startup for commissioning, during normal use or before non-use. For safety, be sure to turn off the power switch before cleaning. The freezer should be cleaned with a soft cloth or sponge moisten...

15-24 Q & A The following phenomena are not faults: In case of first use or startup, the freezer may work 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. I...

16-24 After-sales Service Analysis on FAQ (frequently asked questions): If the condenser is dirty or clogged, it could not cool the compressed gas produced by the work of refrigerant compressor. When it is overheated, the compressor may be damaged. Therefore, the condenser must be cleaned on a regul...

17-24 Solutions: If the problem lies in control board, replace it; if lies in compressor itself, replace it or its accessories. Unstable temperature Internal temperature does not reduce, but rises, e.g. rises to -80 ℃ from -140 ℃ . Cause 1: Dirty condenser or clogged air vent Solution: Clean the con...

18-24 running of compressor may be likely to cause compressor burn-out. Solution: Immediately have the compressor stop running; one hour later, i.e. after the compressor is moderately cooled down, adjust the temperature setting to a higher level to ensure that the compressor may stop running in 50 m...

19-24 Telephone number of Haier Headquarters: 86-532-88937236 、 88936023 Warranty This series of products are under warranty in one year calculated from the date of purchase (subject to the invoice date; but calculated from the date on the “Installation and Commissioning Sheet” for those products pu...

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