Related Manuals for Dulas VC50SDD
Summary of Contents for Dulas VC50SDD
- Page 1 DULAS Solar Direct Drive VC50SDD Refrigerator (E003/078) Installation & Technician’s Manual Ref: M-VC50SDD-ENG-F...
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Page 2: Table Of Contents
VC50SDD Installation & Technician’s Manual Table of Contents 1. COMPONENTS CHECKLIST ..................4 2. SAFETY INSTRUCTIONS ................... 5 3. YOUR DULAS SOLAR DIRECT DRIVE REFRIGERATOR ......... 7 4. VC50SDD REFRIGERATOR COMPONENTS ............8 5. RECOMMENDED TECHNICIAN’S TOOLS ..............9 6. MATERIAL SAFETY INFORMATION .................10 7. - Page 3 VC50SDD Installation & Technician’s Manual Page 3 of 46...
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Page 4: Components Checklist
VC50SDD Installation & Technician’s Manual 1. Components Checklist DESCRIPTION QUANTITY REFRIGERATOR VC50SDD Refrigerator Cabinet Refrigerator Basket Refrigerator Key SOLAR ARRAY 260Wp min Solar Module(s) 20m Pre-terminated Solar Cable (+ve & -ve) 1 pair Solar Connector – Branch Plug (only required for 2 module systems) Solar Connector –... -
Page 5: Safety Instructions
VC50SDD Installation & Technician’s Manual 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. - Page 6 VC50SDD Installation & Technician’s Manual DC power only - this refrigerator is designed for operation with the solar power system supplied. Do not connect the refrigerator to other power supplies. 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.
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Page 7: Your Dulas Solar Direct Drive Refrigerator
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. -
Page 8: Vc50Sdd Refrigerator Components
VC50SDD Installation & Technician’s Manual 4. VC50SDD Refrigerator Components Lockable Handle Temperature Replaceable sensors gaskets Vaccine compartment solar powered temperature display and compressor status Basket Page 8 of 46... -
Page 9: Recommended Technician's Tools
VC50SDD Installation & Technician’s Manual 5. Recommended Technician’s Tools Pozidrive No.2 Screwdriver Slot-head Screwdriver Pliers Wire Cutters Craft Knife Drill and Bits Hammer and Punch Deep reach 18mm socket (supplied) Torx T30 key (supplied) Torx T45 key (supplied Ratchet socket handle (not supplied) -
Page 10: Material Safety Information
VC50SDD Installation & Technician’s Manual 6. Material Safety Information THE REFRIGERATOR The Dulas VC50SDD conforms to the European directive 2002/95/EC on hazardous substances and does not contain the following elements: lead, cadmium, mercury, hexavalent chrome, PBB or PBDE. The absence of ozone destroying materials is in accordance with EC 1005/2009 (CFC-free) It is compliant with European Standards (CE) EN60335-1:2010 &... -
Page 11: End Of Life & Product Recycling
Disposal of Phase Change Material (PCM) The PCM used in the Dulas refrigerator has a very long life and does not degrade through use. At the end of the refrigerators useful life the PCM should be either recycled or disposed of in accordance with applicable regional, national and local laws and regulations. - Page 12 VC50SDD Installation & Technician’s Manual SOLAR POWER SUPPLY Do not dispose of this equipment with normal domestic waste! To comply with the European Directive 2002/96/EC on Waste Electrical and Electronic Equipment and its implementation as national law, electrical equipment that has reached the end of its life must be collected separately and returned to an approved recycling facility.
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Page 13: Refrigerator Transportation
VC50SDD Installation & Technician’s Manual 8. Refrigerator Transportation To reduce the risk of bodily injury, or damage to the refrigerator, the following precautions must be observed: • Properly secure the refrigerator when in transit to prevent it moving or falling within the vehicle. -
Page 14: Preparing To Install
Ensure that you have all tools required to complete the installation. Familiarise yourself with the Dulas Installation Record in Section 24 of this manual. This provides a step-by-step guide to the installation process and also gives you a formal record of the installation. -
Page 15: Solar Array Assembly
Ratchet socket handle (not supplied) If this is your first time installing the Dulas mounting system it is highly recommended to do a test assembly at ground level prior to working on the roof top. This will ensure you are familiar with how the system goes together and can work out any problems in a safe environment. - Page 16 VC50SDD Installation & Technician’s Manual The mounting system is supplied in pre-assembled parts. See below for a pictorial guide to identifying these individual parts (refer to the parts list in Section 1 for the exact quantity of parts you should have)
- Page 17 VC50SDD Installation & Technician’s Manual The mounting system can be assembled to allow the modules to be attached in either portrait or landscape configuration. The decision between which option to use is usually guided by which direction the joists run on your roof.
- Page 18 VC50SDD Installation & Technician’s Manual 1 or 2 modules in Landscape orientation IMPORTANT: CLAMP MODULES IN THE GREEN AREA FOR MAXIMUM WIND LOADING. Solar panel clamping guidance Clamp here for maximum strength (550 kg/m Extended clamping area (244 kg/m Do not clamp here NOTE: This diagram is for guidance only.
- Page 19 VC50SDD Installation & Technician’s Manual Attaching solar panels to the rails How to attach the modules to the rails Mid clamps x 2 (2 mod. Only)) End clamps x 4 Page 19 of 46...
- Page 20 VC50SDD Installation & Technician’s Manual In order to minimise the shipping volume some systems have the rails supplied in two pieces. In this case we also provide a rail connector to securely attach the two rail sections together: Joining two rails together with the rail connector The mounting system is made from aluminium and is adaptable to a wide variety of mounting options.
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Page 21: Solar Array Orientation
VC50SDD Installation & Technician’s Manual 11. Solar Array Orientation The solar array must be permanently positioned where the modules will receive the maximum amount of sunshine. A suitable position must be found away from trees and tall objects, to avoid shading the array, as this will impair the performance of the modules. -
Page 22: Solar Array Installation
VC50SDD Installation & Technician’s Manual 12. Solar Array Installation – Only connect the Dulas Solar Direct Drive refrigerator to the solar array supplied. Attention Connection to other solar power systems may damage the refrigerator or cause it to not function correctly. - Page 23 VC50SDD Installation & Technician’s Manual Following the guidance in sections 10 and 11 above determine the required tilt angle for the array. Use an inclinometer (or free smart phone app e.g “Angle Meter” in the Google Play store) to set the array tilt. Alternatively a triangle may be cut from a piece of card and used with a spirit level to set the array angle correctly.
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Page 24: Solar Module Connections
VC50SDD Installation & Technician’s Manual 13. Solar Module Connections Please ensure that the solar module(s) are connected as per the diagram below. Incorrect connection of the solar array could cause permanent damage to the refrigerator and its components. Only use solar cable and solar connectors provided. Follow good electrical installation practices when installing the cables: •... -
Page 25: Commissioning Solar Array
VC50SDD Installation & Technician’s Manual DO NOT DISCONNECT THE SOLAR CONNECTORS UNDER LOAD. If you need to disconnect any of the solar connectors (at the solar array or at the refrigerator) please ensure that the refrigerator has been turned off at the PV isolator (located at the back of the refrigerator) before disconnecting. -
Page 26: Advice On Lightning Protection
This protects the equipment and any people who may be touching the refrigerator from electric shock during fault conditions. Dulas SDD cabinets have a dedicated earthing block on the rear of the cabinet for this purpose (see Section 4). -
Page 27: Solar Array Earthing
VC50SDD Installation & Technician’s Manual 17. Solar Array Earthing In order to provide electrical bonding for the metal parts of the solar array an earthing kit has been provided as part of this system. Find a good location close to the building where the full length of the earth rod can be completely sunk into the ground, within easy reach of the earth cable. -
Page 28: Refrigerator Installation
VC50SDD Installation & Technician’s Manual 18. Refrigerator Installation DO NOT position the refrigerator in direct sunlight or next to any heat sources. Make sure the refrigerator is positioned to provide good ventilation and ease of access for maintenance. It is particularly important to ensure the lower vents on the front and back of the appliance are kept clear to allow the heat generated by the condenser and compressor to escape. -
Page 29: System Commissioning
VC50SDD Installation & Technician’s Manual 19. System Commissioning • Complete the Installation & Commissioning record at the end of this manual (Section 24) and ensure all manuals are stored close to the refrigerator for ease of reference. • Connect the solar panels and allow the refrigerator to run for at least 7 days. -
Page 30: Refrigerator Loading
IN ORDER TO KEEP INTERNAL TEMPERATURES OPTIMUM AND MINIMISE ENERGY CONSUMPTION, ONLY OPEN THE LID WHEN STRICTLY NECESSARY. The VC50SDD refrigerator has a single compartment specifically for the storage of vaccines, see Section 4. The refrigerator compartment is designed to maintain a stable temperature between... -
Page 31: Green Compressor Status Led Light
VC50SDD Installation & Technician’s Manual 21. Green compressor status LED light The green LED light on the front of the refrigerator illuminates to indicate that the compressor is operating. The compressor will run if the refrigerator temperature is above about 4 degrees and there is sufficient solar power. -
Page 32: User Training
VC50SDD Installation & Technician’s Manual 22. User Training The end user of the VC50SDD should be instructed in the simple processes outlined below and also those in Section 22 Maintenance tasks. It should be stressed that these tasks are essential to ensure correct and reliable operation of the refrigerator. -
Page 33: Troubleshooting Guide
24. Troubleshooting Guide Section 1 General description The VC50SDD is based on well proven technology and components and should prove to be very reliable in operation. However if there is a fault it has been designed for easy access to the main components. - Page 34 VC50SDD Installation & Technician’s Manual Page 34 of 46...
- Page 35 VC50SDD Installation & Technician’s Manual Section 2. How to check that the Dulas PV array is working 1. Switch the PV isolator off (indicated by a “0”) 2. Disconnect the PV cables from the refrigerator. 3. Connect the supplied test leads to a suitable multimeter as shown in photograph.
- Page 36 VC50SDD Installation & Technician’s Manual Section 3. How to check that the compressor is working The Secop compressor and compressor controllers are a well-established design and are very robust. Note: Terminology in this procedure refers to the diagram on the following page and also section 25.
- Page 37 When there is sufficient light for the PV array to allow the compressor to run the Dulas SDD controller ensures that the average of these two temperature sensors is maintained at 3.5C. As a fail-safe the compressor will turn off if the lower temperature is below 3C, even if the average temperature is higher than 3.5C.
- Page 38 VC50SDD Installation & Technician’s Manual The following checklist should be used to check that the controller is working. If any of the tests fail the controller should be replaced. Test What to do if the test fails Check that the controller passes power to the Replace the controller compressor and capacitor.
- Page 39 VC50SDD Installation & Technician’s Manual Section 5 – Checking the Dulas Lightning Protection board Dulas Lightning Protection board incorporates three Metal Oxide Varistors (MOVs) lightning protection devices on the board. These will absorb the small lightning strikes that may occur nearby to the installation but will not be effective against large lightning strikes.
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Page 40: Installation & Commissioning Record
VC50SDD Installation & Technician’s Manual 25. Installation & Commissioning Record Site name and location: ....................Date: ..........................Name of person responsible for installation: ............Name of person responsible for health centre: ............Please or 1. Before Going to Site insert value. - Page 41 VC50SDD Installation & Technician’s Manual 3. Solar Array Installation WORKING AT HEIGHT IS DANGEROUS – PLEASE OBSERVE ALL REASONABLE SAFETY PRECAUTIONS • Record the direction of the solar array: ……………….. degrees. • Record the tilt angle of the solar array: ……………….. degrees.
- Page 42 VC50SDD Installation & Technician’s Manual 4. Refrigerator Installation and Commissioning • Make sure there is enough cable for the refrigerator to be moved for maintenance and cleaning. • Ensure that the PV switch on the refrigerator is in the ‘OFF’ position.
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Page 43: Vc50Sdd Electrical Schematic
VC50SDD Installation & Technician’s Manual 26. VC50SDD Electrical Schematic Page 43 of 46... -
Page 44: Vc50Sdd Refrigeration Schematic
VC50SDD Installation & Technician’s Manual 27. VC50SDD Refrigeration Schematic 28. Spare parts The table shows the likely spare parts required by the VC50SDD over the course of its lifetime. It is recommended that spares quantities are calculated according to the stocking rate listed. Stocking Spare Part Description Spare Part No. -
Page 45: Vc50Sdd System Layout - 1 Module System
VC50SDD Installation & Technician’s Manual 29. VC50SDD System Layout - 1 module system (Diagram showing two modules in parallel, illustrative purposes only) Page 45 of 46... - Page 46 VC50SDD Installation & Technician’s Manual For more information contact: DULAS Ltd, Dyfi Eco Park, Machynlleth, Powys, SY20 8AX, UK tel: +44(0)1654 705055 fax: +44(0)1654 703000 email: solar@dulas.org.uk website: www.dulassolar.org Page 46 of 46...
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