Dulas VC60SDD 사용자 설명서 - 페이지 13

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9. Freezer operation

The VC60SDD freezer is a highly efficient freezer designed specifically for freezing water packs for
vaccine distribution. It has a fan to maximise the cooling power and is able to rapidly freeze up to
2.4kg of water each day.
The refrigeration circuit of a solar direct drive freezer only runs during the day time when there is
enough sunshine. The VC60SDD is designed to prioritise keeping the vaccine compartment cold
over the freezing of water packs. The freezer only turns on when there is enough solar energy to
run first the fridge compressor and then the freezer. In low sunshine conditions it is normal for only
the fridge to keep running.
To freeze water packs simply place the required number of water packs in the freezer at the
beginning of the day and by the end of the day they will be frozen. The freezer is well enough
insulated that the water packs will remain frozen overnight.
The VC60SDD can be used to build up a store
of up to 23 x 0.6L water packs allowing
multiple outreach trips to take place in a short
time. Simply add 2.4kg of water packs each
day until the desired amount of ice has been
accumulated.
The VC60SDD has an intelligent controller that automatically ensures the operation of the freezer
never endangers the safe storage of the vaccines in the fridge. There is also an on / off switch on
the back of the cabinet.
There is no need to turn the freezer off unless for maintenance.
There is no risk of damage to the system by freezing too many water packs.
Tips to maximise the freezing power of the VC60SDD:
Allow the freezer to run for 2 or 3 days before starting to freeze water packs.
Use the foam lid: make sure it is always replaced securely.
Use the basket provided in the freezer: this is designed to allow air to flow around the water
packs and ensures rapid freezing
If there is a build-up of ice on the cabinet walls, turn the freezer off for a day until it has
melted. Keep the lid closed during defrosting!
If water builds up in the bottom of the freezer there is a drain plug on the side.
VC60SDD User's Manual
Freezing capacity per day
Water pack volume
0.3L
0.4L
0.6L
Qty = 2.4kg
8
6
4
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