User manual AEG-ELECTROLUX TCW1990

[. . . ] GENERAL INFORMATION THE ILR One of the most important links in the cold-chain is Ice Lining Refrigerator (ILR). This is a unit which operates on the principle of vapour compression system, similar to any conventional compressor type refrigerator operating on 1 15 or 230 volts, A. C. However, the ILR has top opening door to prevent loss of cold air during door opening. LOCKING SYSTEM The ILR is equipped with a lock, operated with a key. POWER-SUPPLY ARRANGEMENT For smooth functioning of the ILR it is advisable to connect the same to a 15 Amps power plug socket outlet, wired from the mains with PVC insulated cables of minimum 2. 5 mm section of Aluminium (see also page 5 under `Installation'). The larger size of the plug and socket decreases the contact resistance which in turn reduces voltage drop and provides an easy path for the current. [. . . ] Check by pushing with your fingers to the flap thermostat, if a free moving to open and close the cold air channel is granted. 10 3. PREPARATIONS 8. Fill the ice-packs to the marked level and screw on the cap. To remove the cap, you press on the cap from the top and simultaneously you turn the cap anticlockwise. With your finger nail or a small screw driver you push of the plastic protection. 14. 9. Put the 5 (filled with water) small ice-packs in the bottom of the refrigeration compartment. 15) 10. Fill all the 36 ice-packs with water, tight the cap carefully and stack them in the greater freezing compartment. It is important that they are stacked exactly as shown on the sketch in order to obtain air circulation through the ice-packs and in order to avoid damages caused by expansion during freezing. 15. 11. After correct installation of all the ice-packs insert the plastic innerliner and fix it with his 3 screws. 16. 12. Refit the filled ballast container on the lid. 13. Check that the drainage plug is always at his position. 11 4. USE THE APPLIANCE 1. Close the lid and plug in the appliance. The green indicator light on the front control panel shows you that the unit is switched on. 17. 2. Turn the thermostat button to the position 1" (20°C ambient) or at 2" (32°C ambient) and leave the unit for minimum 48 hours. After this time, check if the ice-packs in the ice bank are completely frozen. If you find after 48 hours that the temperature on the front thermometer is warmer then the desired range from 2 to 8°C you can adjust the thermostat button to position 3" or 4". If you find after 48 hours that the temperature on the font thermometer is colder then the desired range from 2 to 8°C you must check if the water in the ballast container is frozen. If this is the case you have to check the flap thermostat. 3. When the temperature on the front thermometer is observed to be steady for several hours within the range from +2° to +8°C only then the vaccines to be preserved should be transferred to the ILR. 18) 4. After storing the vaccines keep the lid properly closed and locked. 18. 5. The inner temperature of the cabinet can fluctuate due to several reasons: to high ambient temperature, to many openings of the lid, to many vaccines at on time, inner arrangement of the vaccines, air circulation around the unit, inner blower is not running. 12 5. DEFROSTING & CLEANING DEFROSTING & CLEANING The moisture in the air, which enters the ILR due to lid opening (and also may be due to defective lid-gasket or door alignment) is attracted by the cold surfaces inside the ILR. So, formation of frost and ice occurs on the walls around the tubes inside the lining compartment. When the frost layer is 1 /4" to 1 /2" (6-12 mm) thick, it is time for `defrosting' the ILR. MOST IMPORTANT: Before defrosting the ILR, the vaccines preserved in it will have to be removed and stored temporarily in other working ILR or Refrigerator. If a second ILR or Refrigerator is not available, the vaccines will have to be preserved in Cold-Box or Vaccine carrier, properly lining the same with frozen ice packs, such that the vaccine temperature remains within the recommended storage temperature during the defrosting of the ILR. DEFROSTING & CLEANING PROCEDURE 1. When the frost formation around the evaporator is 6 to 10 mm thick, it is time for Defrosting". 2. Prepare the temporary storage and transfer the vaccines to another refrigerator or cold box. 3. Unplug the unit and open the lid for minimum 24 hours so that all the ice around the evaporator and the ice bank can melt. 4. Open the drainage plug at the bottom, inside the cabinet. [. . . ] Check if the ILR is level and firm on its base. Even after actions as above if it is observed that the noise is still present or it is coming from the inside of the compressor - Notify Refrigerator Technician. C) CABINET TEMPERATURE IS LOWER THAN NORMAL Turn the thermostat knob, anti-clockwise, to a lower setting and observe if the compressor is cut `off' by the thermostat. If the same does not cut `off' even at the lowest (1) setting, the thermostat may be defective and may have to be replaced - Notify Refrigerator Technician. NOTE: In such cases, till the repair is done, the vaccines should be preserved as follows a) Take out the floors and the layer of ice packs b) Put one layer of fresh (non-frozen) ice packs o the bottom and replace the floors n c) Keep some not-frozen ice packs on and around the vaccines also d) Run the ILR under surveillance and put it `off' when lowest recommended temperature is attained. [. . . ]