PQS Target Product Profile for SDD refrigerators or combined refrigerator and water-pack freezers (E003/TPP01.2)

Recent public sector consultations and reports from the field have identified the need for some amendments and additions to the current WHO Performance, quality, Safety (PQS) performance specifications for solar direct drive (SDD) equipment. Initial field experiences with first-generation SDD products have revealed shortcomings in performance and build quality and has also highlighted usability issues relating to installation and maintenance. These matters need to be addressed so that the next generation of SDD equipment better meets country needs. The purpose of this preliminary Target Product Profile (TPP) is to propose enhancements designed to resolve these issues and to initiate a consultation process with industry which will lead to revised PQS performance specifications and verification protocols and to products with improved overall performance.