Dulas Ltd VC 65-2

Battery solar powered refrigerator/ freezer

Product owner: Dan Admin

Manufacturer reference name
VC 65-2
Dulas Ltd
First pre-qualification date

Energy Source
Solar charged battery;#3
Solar radiation reference period
1.0 kWh/m2/day
Refrigerator vaccine storage capacity (litre)
37.5 L
Refrigerator's gross volume (litre)
48.3 L
Freezer net volume
< 50 L
Freezer's gross volume
24.3 L
Waterpack freezing capacity
2.4 kg/24 h
Waterpack storage capacity
18 x 0.6 L
Energy consumption (cool down) KWh/24 h
0.54 kWh/24h
Energy consumption (stable runing, continuous power) KWh/24 h
0.55 kWh/24h
Energy consumption (stable runing, intermittent power) KWh/24h
Energy consumption during freezing (KWh/24 h)
0.90 kWh/24h
Hold over time (hours; mn)
3 hours 8 min
Minimum rated ambient temperature
Refrigerant type
Freeze protection
Not tested
Climate zone
Freezer type
Low energy compression
Freezing capacity range
less 5 kg/24h
Fuel and refrigeration cycle
Electric - compression
Quality standard

ISO 9001:2008

Range of holdover time
2 - 5 hours
Range vaccine storage capacity
25L - 60L
Range waterpack storage capacity
< 20
Shipping volume
0.887 m3
Shipping weight
92 kg
Solar + Battery
Type of appliance
Battery solar powered combined refrigerator and freezer
Performance at:

How to Create an Equipment Inventory

You will need a contingency plan for when things go wrong with your equipment. An inventory list helps technicians plan repairs, manage spare parts, and see which locations may need new or additional equipment. Learn how to fill out an equipment inventory, step-by-step. This EPI training video provides knowledge and skills based on WHO guidance (for example, Mid-Level Manager and Immunization in Practice modules) to support routine immunization in the field. Find more at www.immunizationacademy.com.

Submitted By: Hamadou Modibo Dicko
Submitted On: 17/07/2014
Given that I was told that SDD would not have performed well due to the heavy cloudy and rainy seasons by a certain manufacturer, I have opted for the VC 65-2 from Dulas. The packaging of this equipment was excellent as all 7 of them arrived safely to Benin. My contacts at the ground, who are mainly health agents, technicians, Health zone coordinator and AMP staff, are very much satisfied with the performance of the VC 65-2. The performance is monitored via the 30DTR and thus far none of the installed equipment has demonstrated temperature excursions beyond the +2 and +8°C. However, we found the installation on poles very difficult with little information from the manufacturer. The manufacturer should try to provide better guidelines on how to undertake such installations on poles. Furthermore, the cable length should also be increased as 10m, as we have found out, was relatively short especially for poles installations.
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Submitted By: Pat Lennon
Submitted On: 25/03/2016
The Dulas VC-65 device was included in the equipment sampling evaluated by PATH in our recent analysis of refrigerator failures that occurred within 8 years of procurement in Uganda. In total, 11 Dulas VC-65 devices assessed. The causes of device failure included refrigerant leak (5), control unit failure (2), thermostat failure (2) and stolen solar panels (2). A previously-recognized failure of hinges was also noted. (Dulas previously identified a failure of hinges on its VC-65 device and subsequently improved the hinge design—sending out replacements in Uganda and elsewhere.) Due to our use of purposeful sampling to locate a subset of failed cold chain equipment in Uganda, conclusions about predicted failures cannot be drawn from our study report. However, our analysis and its findings have been shared with Dulas. The manufacturer reacted positively to the feedback, and is now exploring options for obtaining at least one of the devices with a refrigerant leak for more detailed analysis. All 11 of the devices evaluated were part of a procurement of about 290 devices that were shipped to Uganda in late 2010. The full report can be accessed here. http://www.path.org/publications/detail.php?i=2586
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