Dulas Solar VC150, Handbook

Page: 68 / 156

68
C.7 Defrosting the Refrigerator
If the ice in the freezer compartment of the refrigerator is more than 5 mm (1/4 inch)
thick, defrost the refrigerator.
(a) Move the vaccine into another refrigerator or store it in a cold box with
ice-packs.
(b) Switch the refrigerator OFF.
(c) Open the Lid of door of the refrigerator and freezer compartment.
(d) As soon as it is possible to remove ice with your fingers, do so. Do not
remove ice with knives or other sharp objects.
(e) Wipe the freezer compartment dry after all the ice has been removed.
(f)
Clean the refrigerator inside with soap and water, and then dry it
carefully. Never use scouring powder, steel wool or abrasive cleaners.
Remember to clean the lis or door-sealing gasket and put some talcum
powder on it to prevent it sticking to the lid.
(g) Switch the refrigerator back ON.
(h) Wait until the inside temperature has fallen to between 0
0
Cand +8
0
C.
(i) Put the vaccine back inside and remember to close the lid/door again.
(j) Defrosting must be carried out as quickly as possible to prevent
damage to the vaccine.
(k) Tell the person in charge of the refrigerator to defrost it regularly. It
should be defrosted when the ice in the freezer compartment becomes
more than 5 mm (1/4 inch) thick.