Dulas Solar VC150, Handbook

Page: 99 / 156

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5. If the above checks indicate that the refrigerator is being correctly operated and
that no parts of the system are defective, then closely observe the operation of the
refrigerator during several days and note when the indicator lights shows “Do Not
Freeze Icepacks” and possibly “Refrigerator Disconnected”.
6. If the problem continues a part of the system may be undersized.
Repair action required
1.Write down your findings on the DAILY RECORD SHEETS kept by the user:
2. Prepare a note with a full explanation of checks performed and your conclusions
that there may be a problem with sizing.
3. Send or preferably hand-deliver your note to:
(a) The chief of the solar refrigerator installation team.
(b) The person responsible for solar refrigerator in the organization responsible for
the EPI program in your country.
(c) Ask your head of department to send a copy of your note to the Cold Chain
Unit. Expanded programme on Immunization at the World Health Organisation, 1211
Geneva-27, Switzerland.
4. Advise the user that he or she should refrigerate only vaccine and other essential
items and should try to minimize the number of unfrozen ice packs placed in the
freezer at one time.
REMEMBER: VACCINE AND ESSENTIAL MEDICAL ITEMS ONLY SHOULD BE
IN THE REFRIGERATOR