Defrosting & Cleaning

3. HOW TO USE

If the cabinet temperature does not reach the required low level of 2-3 days, the freezer-thermostat setting can be increased to a higher setting by turning its knob clockwise.

After storing the vaccines, keep the lid properly closed and locked (fig. 13).

Fig 13.

4. DEFROSTING & CLEANING

The moisture in the air, which enters the appliance due to lid opening (and also may be due to defective lid-gasket or door alignment) is attracted by the cold surfaces inside the appliance. So, formation of frost and ice occurs on the walls. When the frost layer is 1 /4" to 1 /2" (6-12 mm) thick, it is time for `defrosting' the appliance.

MOST IMPORTANT:

Before defrosting the appliance, the vaccines preserved in it will have to be removed and stored temporarily in other working freezer.

If a second appliance 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 appliance.

DEFROSTING & CLEANING PROCEDURE

Switch OFF the power supply to the appliance and remove the plug of its power supply cord from the wall socket.

Prepare the temporary storage and transfer the vaccines and preserve them properly with care.