New book - 'Building a Better World in Your Backyard' - on Kickstarter (sponsored friend)

Talk:Photovoltaic vaccine refrigeration at Centro De Salud

From Appropedia
Jump to: navigation, search

According to the pictures the model of Sun Frost is a R-4. The R-4 unit has a slightly larger refrigerator compartment (3.91 cubic feet) than the RFVB-134a refrigerator compartment (1.8 cubic feet). The Sun Frost R-4 is a refrigerator only model whereas the RFVB-134a has a freezer for making ice packs for vaccine carriers . Due to the lack of a freezer the R-4 uses (8 amp/hours/day at 70 degrees) and (12 amp/hours/day at 90 degrees). In this situation the R-4 is good idea. The R-4 is being used is a hospital and probably does not need to produce ice packs. The lack of the freezer provides more refrigerator capacity and reduces the energy use. —The preceding unsigned comment was added by Dlm58 (talkcontribs) 17:28, 20 March 2009


In the case of the fridge at Centro De Salud, I think that they are making ice packs and using the ice packs in the other refrigerators to protect even more vaccines during power outages. Can you tell from this picture, which model it is?
R4 or RFVB-134a?
Thank you, --Lonny 20:42, 20 March 2009 (UTC)


The unit is a Sun Frost Model R-4 Serial Number 88429.
SunFrost unit placard
Clearly. Thanks! I totally missed that image. If you see a good place to change this on the article page, please do. --Lonny 01:00, 24 March 2009 (UTC)