Dulas VC50SDD Kullanıcı Kılavuzu - Sayfa 6

Buzdolabı Dulas VC50SDD için çevrimiçi göz atın veya pdf Kullanıcı Kılavuzu indirin. Dulas VC50SDD 17 sayfaları. Solar direct drive

VC50SDD User's Manual

3. Your Dulas Solar Direct Drive Refrigerator

Congratulations on choosing the Dulas VC50SDD vaccine refrigerator. With over 30 years of

engineering experience in the production of solar powered vaccine refrigerators, Dulas is

considered one of the market leaders in this field.

The VC50SDD is Dulas' latest innovation in solar refrigeration. Using our new solar direct drive

technology we have replaced the traditional battery energy store with a ground breaking phase

change solution. With this new technology we can offer the same renown Dulas quality and

reliability that have always kept your vaccines safe, but in a simpler and more efficient package.

How does solar direct drive work?

When the sun shines the solar panels generate electricity which directly drives the refrigerators

compressor, cooling down the refrigerator and its contents. As a result the compressor only

operates during the day. To maintain the temperature at night or when the sun is not shinning the

refrigerator has a phase change lining. This interior lining holds the exact temperatures required

for safe vaccine storage and acts as a "cold store", storing energy that keeps the temperatures

stable all day and night.

In order to store sufficient energy to keep vaccines safe for prolonged periods without any

sunshine, the refrigerator must be allowed time to charge it's cold store. Under normal

sunlight conditions (8 hours/day of solar irradiance >250W/m²) the refrigerator will take

approximately 7 days to fully charge the cold store and be ready for vaccine storage.

Recommended solar array

The VC50SDD has been designed to meet the World Health Organisation's Performance, Quality

& Safety (PQS) standards. The refrigerator has been independently tested to the PQS standard

WHO/PQS/E03/RF05 and is a Hot zone rated appliance with an ambient operating temperature

range of between +5C and +43C. For use in such Hot Zone environments it should be powered by

a minimum 260Wp solar array with a Voc not exceeding 45Vdc.

Page 6 of 17