Dulas VC60SDD User Manual

DULAS Solar Direct Drive

VC60SDD Refrigerator

User’s Manual

Ref: MU-VC60SDD-ENG-A

VC60SDD User’s Manual

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Table of Contents

1. Components Checklist………………………………………………………………. 3

2. Safety Instructions……………………………………………………………………... 4

3. Your Dulas Solar Powered Direct Drive Vaccine Refrigerator……………………… 5

4. Refrigerator Components………………………………………………………………. 6

5. Material Safety Information…………………………………………………………….. 7

6. End of Life & Product Recycling……………………………………………………..8 - 9

7. Refrigerator Installation…………………………………………………………………. 10

8. Refrigerator Loading……………………………………………………………………. 11

9. Freezer Operation………………………………………………..………………………12

10. Status Light…………………………………………………………………………..……13

11. User Training…………………………………………………………………………….. 14

12. Maintenance Tasks……………………………………………………………………... 15

13. Spare parts………………………………………………………………………………..15

14. VC60SDD System Layout……………………………………………………….……. 16

VC60SDD User’s Manual

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1. Components Checklist

Description Qty

Refrigerator

Solar Array

Mounting System

VC60SDD Refrigerator Cabinet 1

Refrigerator Baskets 4

Refrigerator Key 2

250W min Solar Modules 3

20m Pre-terminated 6mm 2 Solar Cable (+ve & -ve) 1 pair

Solar Connector – Branch Plug 2

Solar Connector – Branch Socket 2

Earthing Kit (incl. Earth Rod, 25m Earth Cable & Earth Clamp) 1

(A) End Clamp 34-43mm Set

4

(B) Mid Clamp 28-42mm Set

4

(C) Front fixed leg

3

(D) C-Rail 47-3 – 1530mm

4

(E) C-Rail 47-3 - 750mm (not used with VC60SDD system)

0

(F) Rear adjustable leg

3

(G) Rail connector set 47 2

Coachscrews, Rawlbolts, Washers. 2 pack

Screws 1 pack

Wall Plugs 1 pack

Cable Ties 1 pack

Cable Tie Bases 1 pack

Silicon Sealant 1

VC60SDD User’s Manual

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2. Safety Instructions

Read the Manual -

please read all instructions completely before

installing. Installation and system servicing should only be carried out

by a qualified and competent engineer. Work performed by persons

with insufficient technical knowledge may adversely affect the

performance of the unit or cause physical injury or damage to the

equipment.

The refrigerator is not to be used by persons (including children) with

reduced physical, sensory or mental capabilities, or lack of

experience and knowledge, unless they have been given supervision

or instruction. Children must be supervised not to play with the

appliance. This refrigerator is for professional use only. It is not

designed for household use.

Refrigerator and power system are heavy

- please observe

good manual handling procedures when moving the refrigerator and

solar power system. Only use suitable transport equipment.

Safe working

- Please observe safe working at height practices

when installing the solar array.

Live electrical components

– solar modules are live when

exposed to sunlight. Cover solar modules before breaking any

electrical connections.

Electrical danger

– under fault conditions high electrical currents

can occur. Never bypass a system fuse and always replace with the

same type and rating.

DC power only

- this refrigerator is designed for operation with the

solar power system supplied. Do not connect the refrigerator to other

power supplies.

VC60SDD User’s Manual

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Dangerous substances

- this refrigerator contains substances that

are not biodegradable and can cause harm, please ensure that all

components of the refrigerator are disposed of correctly, see page 8

for more information. Do not damage the internal side panels of the

compartment.

Keep Dry

– This refrigerator is for indoor use only. Do not expose it

to rain.

WARNING: This unit's cooling system contains flammable refrigerant. Due to this
fact, the following information is particularly important:

Warning:

Do not damage the refrigeration circuit. Ensure that sharp

or pointed objects do not come into contact with the refrigeration

circuit.

Warning:

Do not use mechanical devices or other means to

accelerate the defrosting process, other than those recommended by

the manufacturer.

Warning:

Keep ventilation openings, in the appliance enclosure or in

the built-in structure, clear of obstruction.

Warning:

Do not use electrical equipment inside the appliance.

Warning:

Do not store explosive substances such as aerosol cans

with a flammable propellant inside this appliance.

VC60SDD User’s Manual

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3. Your Dulas Solar Direct Drive Refrigerator

Congratulations on choosing the Dulas VC60SDD vaccine refrigerator and water pack freezer.

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 VC60SDD 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 renowned 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 shining 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 its cold store. Under normal

sunlight conditions (8 hours/day of solar irradiance >200W/m²) the refrigerator will take

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

In the VC60SDD the freezer compartment is secondary to the vaccine compartment. It has its own

separate refrigeration circuit and we prioritise the operation of the vaccine compartment. The

freezer only runs when there is enough solar energy to power first the fridge compressor and then

the freezer. This means that in periods of very low sunshine you may not be able to freeze water

packs.

Recommended solar array

The VC60SDD has been designed to meet the World Health Organisations 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 600W solar array with a Voc not exceeding 45Vdc.