Related Manuals for Dulas VC88SDD
Summary of Contents for Dulas VC88SDD
- Page 1 DULAS Solar Direct Drive VC88SDD Refrigerator (E003/059) Installation & Technician’s Manual Ref: M-VC88SDD-ENG-G...
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Page 2: Table Of Contents
Table of Contents 1. COMPONENTS CHECKLIST ..................3 2. SAFETY INSTRUCTIONS ................... 4 3. YOUR DULAS SOLAR DIRECT DRIVE REFRIGERATOR......... 6 4. REFRIGERATOR COMPONENTS ................7 5. RECOMMENDED TECHNICIAN’S TOOLS ..............8 6. MATERIAL SAFETY INFORMATION ................9 7. END OF LIFE & PRODUCT RECYCLING ..............10 8. -
Page 3: Components Checklist
1. Components Checklist DESCRIPTION QUANTITY REFRIGERATOR VC88SDD Refrigerator Cabinet Refrigerator Baskets Refrigerator Key SOLAR ARRAY 315W min Solar Modules 20m Pre-terminated Solar Cable (+ve & -ve) 1 pair Solar Connector – Branch Plug Solar Connector – Branch Socket Earthing Kit (incl. Earth Rod, 25m Earth Cable & Earth Clamp) -
Page 4: Safety Instructions
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 5 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 6: Your Dulas Solar Direct Drive Refrigerator
Dulas is considered one of the market leaders in this field. The VC88SDD 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 7: Refrigerator Components
4. Refrigerator Components Page 7 of 45... -
Page 8: Recommended Technician's Tools
5. Recommended Technician’s Tools Pozidrive No.2 Screwdriver Small 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) Adjustable Spanner Multimeter (20A rated) Tape measure Spirit level... -
Page 9: Material Safety Information
6. Material Safety Information THE REFRIGERATOR The Dulas VC88SDD 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 10: 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 11 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 12: Refrigerator Transportation
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. • Plan any lifting or moving of the refrigerator in advance, paying particular attention to steps, gradients and doorways. -
Page 13: 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 14: 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 15 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) Mounting system components for 2 module systems A) End clamps x 4 B) Mid clamps x 2 C) Front fixed leg x 2...
- Page 16 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. 2 modules in Portrait orientation Rear adjustable leg Front fixed legs...
- Page 17 2 modules in Landscape orientation Page 17 of 45...
- Page 18 Attaching solar panels to the rails Mid clamps x 2 End clamps x 4 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. If you are uncertain of the correct way to install the solar panels in your system refer to the solar panel manufacturer’s installation...
- Page 19 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 Large arrays are supplied with three front legs and three back legs.
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Page 20: Solar Array Orientation
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. Remember that the modules are very fragile and should not be located where they may be damaged. -
Page 21: Solar Array Installation
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. The solar array must be permanently located in a safe and unshaded position, orientated to face the equator to guarantee maximum energy generation. - Page 22 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 23: Solar Module Connections
Please ensure that the solar modules are connected in parallel as per the diagram below. Incorrect connection of the solar array could cause permanent damage to the refrigerator and its components. Dulas SDD refrigerator Only use the solar cable and solar connectors provided. Follow good electrical installation practices when installing the cables: •... -
Page 24: Commissioning Solar Array
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 switch (located at the back of the refrigerator) before disconnecting. -
Page 25: 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 26: Solar Array Earthing
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 27: Refrigerator Installation
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. Ventilation is particularly important for the condensers and compressors. Position the refrigerator on a level surface;... -
Page 28: System Commissioning
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 29: Refrigerator Loading
IN ORDER TO KEEP INTERNAL TEMPERATURES OPTIMISED AND MINIMISE ENERGY CONSUMPTION, ONLY OPEN THE LID WHEN STRICTLY NECESSARY. The VC88SDD 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 30: Green Compressor Status Led Light
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. Normal operation The refrigerator warms up slightly overnight. -
Page 31: User Training
22. User Training The end user of the VC88SDD should be instructed in the simple processes outlined below and also those in Section 22. It should be stressed that these tasks are essential to ensure correct and reliable operation of the refrigerator. -
Page 32: Troubleshooting Guide
24. Troubleshooting Guide Section 1 General description The VC88SDD 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 33 Page 33 of 45...
- Page 34 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 35 1. Switch the PV isolator off (indicated by a “0”). 2. Remove the four screws that secure the Dulas SDD controller cover and lift off cover. 3. Make a note of the connections to connector J1 so that they can be reconnected correctly after completing the test.
- Page 36 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 3.7C. As a fail-safe the compressor will turn off if the lower temperature is below 3C, even if the average temperature is higher than 3.7C.
- Page 37 Replacing the Dulas SDD controller Switch the PV isolator off and disconnect the PV cables. Make a note of the orientation of the SDD controller. Unplug the connectors to the circuit board and prise back the white plastic clips on each edge of the board to release it from the refrigerator chassis.
- Page 38 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 39: Installation & Commissioning Record
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. • Check your toolkit. •... - Page 40 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. • Check there is no possibility of shading between 7am and 5pm. •...
- Page 41 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. • Connect the cable to the refrigerator and turn the PV switch ‘ON’. •...
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Page 42: Vc88Sdd Electrical Schematic
26. VC88SDD Electrical Schematic VC88SDD... -
Page 43: Vc88Sdd Refrigeration Schematic
27. VC88SDD Refrigeration Schematic 28. Spare parts Listed below are the most likely spare parts required by the VC88SDD over the course of its lifetime. It is recommended that one set of these spares is purchased for every 10 refrigerators. -
Page 44: Vc88Sdd System Layout
29. VC88SDD System Layout... - Page 45 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...
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