Davis & Shirtliff DAYLIFF Ultrasun UVT VacTube Installation & Operating Manual

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Summary of Contents for Davis & Shirtliff DAYLIFF Ultrasun UVT VacTube

Page 1 VacTubes Solar Systems Installation & Operating Manual...
Page 2: Table Of Contents
INDEX SPECIFICATIONS 2. EQUIPMENT SPECIFICATIONS 3. SYMBOLS & WARNINGS 4. SITING 5. INSTALLATION 6. SYSTEM COMMISIONING 7. USAGE 8. TROUBLE SHOOTING 9. TERMS OF WARRANTY © Davis & Shirtliff Ltd 2020 Contents herein are not warranted...
Page 3 Congratulations on selecting a Ultrasun UVT Vactube Solar Hot Water System. They are manufactured to the highest standards and if installed and operated correctly will give many years of efcient and trouble free service. Careful reading of this Installation Manual is therefore important, though should there be any queries they should be referred to the equipment supplier.
Page 4: Specifications
SPECIFICATIONS Capacity: Hot water 200litres, Cold water 8litres Vacuum tubes: 20pieces Absorber Area: 3.28m STRUCTURE Feeder Tank Air vent Cold water inlet Outer tank Inner tank Tube bracket Support structure For grouting Air vent pipe Feeder Tank Support Side Cover Front, horizontal stay channel Front, diagonal stay channel Hot water...
Page 5: Equipment Specifications
Right cradle Back right, upper diagonal stay channel Front diagonal stay channel Back Horizontal stay channel Back Horizontal stay channel Right diagonal Right upper stay channel Left cradle main load channel Left, upper main load channel Back right, lower diagonal stay channel Right, lower main load channel Tail Stock...
Page 6: Symbols & Warnings
3. SYMBOLS AND WARNINGS The installation of the solar system must be in accordance with the relevant requirements of the local authority building regulations as well as regulations for the WARNING prevention of accidents when carrying out works such as solar installation.
Page 7: Siting
It is recommended to use a spanner to fix the pipe from the tank when making any connections. WARNING Prevent twisting and axial force to the pipe to avoid damage to the seal. WARNING Hard objects should not be dropped on glass tubes. WARNING Blockage or damage to the vent pipe can create severe damage to the solar water heater.
Page 8: Installation
5. INSTALLATION 1. The location of the solar water heater should be on even surface with plenty of sunlight and free of shadows between at least 9 am to 4 pm. For installation North of the Equator it should be installed facing South and vice versa for installation South of the Equator.
Page 9 Working on roof areas is dangerous – particularly in the case of pitched roofs. CAUTION Ensure that the roof structure is strong enough to take the weight of the Ÿ filled tank. Care should be taken when maneuvering the stand. It is preferably Ÿ...
Page 10 Fig 5 Cross section of standard Feeder Tank showing pipe positions The Feeder Tank is secured onto its base simply by screwing it onto the inlet port on top of the Main Tank. This is a standard ¾" BSP pipe-fitting and the tank should be screwed into position using PTFE (thread) tape.
Page 11 7. It is advisable to use compression plumbing pipes which can be installed without tools for cold and hot water usage for ease of installation and maintenance. They provide better insulation than manually-insulated metal pipes, and need no insulation of the hot water plumbing if pipe does not exceed 12 meters.
Page 12 Fig 8 The glass vacuum tubes are inserted into the holes in the underside of the tank, and the bottom of the tube then retracted into the cradle, on the bottom of the stand. The vacuum tubes are made from strengthened glass, however, caution is required when handling them to avoid breakages.
Page 13 Aperture containing silicon seal Fig 9 Care must also be taken with the seal itself. The seal is not attached to the tank; it is located into the fitting hole of the tank and stays in place because it has a groove all around it. Make sure that each seal is securely in place before you insert the vacuum tube.
Page 14: System Commisioning
Vacuum Tube Installation Fig 11 The vacuum tubes supplied with the tank are highly efficient. Left in the sun and left dry, they will easily attain an internal temperature of over 250° Celsius – a temperature that can cause both damage and injury. Ensure that tubes are not exposed to sunlight before they are to be installed and remain covered at all times.
Page 15: Usage
7. USAGE It is important that the hot water availability is properly managed as solar energy heating only occurs between the hours of 9:00am - 4:00pm. This effectively means that hot water is available in the evening as any draw off will result in temperature reduction from the replacement cold water.
Page 16 If a controller is used to turn on the electrical heater automatically, ensure • it is set at 45 C . This is usually sufficient for a hot water shower. A higher setting will increase electricity bills unnecessarily. Paint the MS support stand once every five years. Though the supporting •...
Page 17: Trouble Shooting
8. TROUBLE SHOOTING PROBLEM POSSIBLE CAUSE SOLUTION Cold water inlet pipe or hot water Clean the pipes and descale as outlet pipe from the solar water necessary heater is choked by sediment or scales Open the valve Cold water inlet valve is shut W a t e r i s n o t Float valve in the feeder tank has Clean the float valve or replace it...
Page 18 PROBLEM POSSIBLE CAUSE SOLUTION Check wiring Wrong wiring connections Set the controller for a comfortable Inappropriate set temperature bath between 35-45 C E l e c t r i c a l Inspect/replace fuse, heater element b a c k u p n o t Lighting strike and thermostat working...
Page 19: Terms Of Warranty
9. TERMS OF WARRANTY i) General Liability • In lieu of any warranty, condition or liability implied by law, the liability of Dayliff (hereafter called the Distributor) in respect of any defect or failure of equipment supplied is limited to making good by replacement or repair (at the Distributor’s discretion) defects which under proper use appear therein and arise solely from faulty design, materials or workmanship within a specified period.
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