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Assembly Manual and FAQ

Assembly Manual
Solar water heaters consist of glass vacuum tube, water tank, frame and reflector. They are packed into four cartons.
1) one step ---- unpack the carton of frame
The frame and all fastenings are contained in a long thin carton. Please unpack this carton with cares and lay out the parts. Please collect all the nuts, in fear losing one or some. Lay all the U section stainless steel arms on the floor in order of size
2) Tow step ---- assemble reflector
Please unpack the slim square carton. The two or four panels are the reflectors which bolt to the two or three long U section legs. Bolt the reflector panels are evenly in line across the structure.
Fit the three swivel feet to the lower end of the three legs.
Attach the three cradle frames to the top of the three legs. Note there is a left and right side fit.
Select the three rear legs and fit the swivel feet to each.
The three rear legs can now be attached to the cradles and the transverse braces fitted using the triangular and tee bracing plates.
The diagonal bracing arms can now be fitted.
Below the reflector panels on the front of the front legs fit the tube carriage and insert the plastic caps in the holes provided.
Ensure all bolts are tight and the frame is rigid.
3) three step ---- assemble water cylinder (water tank)
You are now ready to secure the frame in position, if attaching directly to the ground now lower the hot water cylinder on to the cradle at the top of the frame, ensure the bolts from the cylinder are through the slots on the cradle and fit the nuts finger tight . Using a string or straight edge check the alignment of the tube carriage guides and tube locating holes in the cylinders. Gently turn the cylinder to achieve alignment if the holes are not aligned the unit may leak or tubes may break when being fitted. Once the cylinder is aligned tighten the bolts to lock it in place and recheck alignment.
Using a clean rag and a small amount of silicone grease clean and lubricate each of the white silicone seal inside the 30 tube location holes on the cylinder.

Note: before assembly, please check the water cylinder and there is other things or not inside it , if yes, please take it out and clean it with water.

4) four step ----- assemble vacuum tubes
carefully unpack the vacuum tube; remember this is glass, unlike the rest of assembly this will break unless handled carefully. Fit a black rubber dust seal to the tubes from the open end with the rounded side facing down. Slide this 200mm down the tube.
Apply a smear of grease to the top 100mm of the open end of the first vacuum glass tube. Using a gentle pressure and twisting motion insert the greased tube into the locating hole until it is well inside the water tank and the bottom end of the tube is at least 25mm clear of the tube carriage guides. Now using a gentle downward pressure and twisting motion lower the tube until it fits snugly into the carriage guide.
Slide the black rubber dust seal up the tube until it’s outside edge fits flush with the cylinder.
Repeat for the rest of the tubes.


Installation
When considering where to locate your new solar water heater you should try to fined the best location for your particular house. The points to consider include distance to largest use (typically this is the bathroom), available sunlight, orientation, level, angle and load bearing capacity. Weight of the solar water heater complete and filled with water is about 330kg (30 pipe). The load is spread to 6 adjustable feet with the stand bracket you may need to check with a qualified builder to make sure that you for can support this weight properly. The brackets may have to be modified for your particular installation and must be done in a proper engineering manner with in the standard building codes.
Always try to locate your unit as close as possible to your largest water use to avoid wastage. Solar water heaters work best where they have the best sunlight. Avoid areas with partial shade or overhanging branches. The unit requires a sound base capable of carrying the weight of the unit and where it can be securely fastened. The cylinder needs to be lying true level with the horizon, check with a level and adjust with packers under the feet if necessary.
Something of notice
1 After being exposed to the sun out of water, the vacuum tubes should pour water in the morning or evening without sunshine, in order to avoid the vacuum tubes bursting.
2.During running snow days or cloudy days in winter and the temperature is below -18℃ in winter or there is nobody at home for 2 days, you should let the water go out, in order to avoid the pipes frozen or stopped.
3.If you use electrical appliances to aid heating, to switch off the power supplies before bathing.
4.To test the water temperature before using, in order to avoid scalding.
Eliminate Malfunction
(1) The water in the solar water heater is not heating
The surface of the vacuum tube is covered with dust or there are something shelter from it. The weather is cloudy, so the radiant emittance is relatively lower .You have use out all the water in the tank.
The valve for feeding water is damaged or not shut down well, which make the rank be in the state of slowly feeding or drawing off water for a long time, result in the overflowing or leaking of the heating water.
The water stains in the vacuum tube is too much and influence the heat transfer. Handling: you can debus the tube and clean it out with the acid liquor made up with vinegar.
(2) The heater leaks water
The silica gel band is not sealed up well with the bladder-like inner container. Diagnostic: having foreign body. Disposition: remove the foreign body.
The silica gel band is aging and ruptures. Handling: replacing the silica gel band.
The top of the vacuum tube has slip from the silica gel band. Handling: adjusting the tailstock amd the heating water tank.
The silica gel band has turned over or come off. Handling: adjusting the silica gel band.
The conjunction between the tank and the bladder-like inner container has become flexible. Handling: fixing it again.
(3) The pipeline is frozen up and not able to feed water. Handling: you can pour some hot water into the pipe from the spout of the tank to defrost it.
Generally, the expanding rate of the heater is very low. You can solve the problems above through adjusting it yourself or consultation.
Please get in touch with the agent or our company if encountering some other problems.
The way of contract us is as follows:
FAQ


1. Is solar water heater a viable alternative to gas or electricity?
Yes. Our Solar Water Heaters can be used all year round in many regions and can provide all of your hot waters needs on clear or intermittently overcast days. If it is particularly overcast or raining, electric or gas backup may be required.


2. How long will it take to recoup my investment?

SUNECO Solar Water Heaters are much more affordable than other solar hot water heaters. For a household of 4 , the price of a full system may not be too much more than an electric or gas system. Depending on you location (solar activity) and current hot water usage the annual electricity or gas saving will differ. However in a normal household that spends 25% of its electricity bill on hot water heating, the full cost of the purchase may be recouped as quickly as 5 years in reduced bills. A SUNECO solar collector should provide reliable operation for at least 15 years. You will definitely make considerable savings during the life of the solar hot water heater.

3. Can SUNECO Solar Water Heaters be used in cold conditions?
Yes. The Normal heat tubes solar water heater and solar collectors can be used in temperatures as low as -40deg Celsius, although performance is reduced in such extreme conditions. Good heat output is still achieved in mild sub-zero conditions.

4. What happens if one of the tubes is broken?
The vacuum tubes can be replaced very easily. They are also fairly inexpensive. Your local distributor will stock spare tubes. The system can operate with several broken tubes, but the efficiency will be reduced, so it is recommended that broken tubes be replaced immediately.


5. Will Water be heated on a cloudy day?
Yes. Although the efficiency of the solar collector is reduced on overcast days it will still be able to heat water for normal use. If it is a heavily clouded day or raining, then gas or electric backup may be required to maintain water at the required temperature. This system will be automated so you don't have to worry about running out of hot water on a rainy day.


6. Can I use a solar collector with my existing hot water system?
Normally yes. If your tank cannot accept the solar input directly an additional tank can be purchased to hold the solar heater water. A interal coil heat exchanger in the solar tank allows the water to be pre-heated before entering the existing water heater. A Thermal Store tank is an excellent choice if you are installing to provide both space heating and hot water.

7. Are the solar collectors noticeable on the roof?
If only the collector is mounted on the roof it should blend into the roof design quite well. The solar collectors are very thin and can be flush mounted on a roof. In fact, our Solar Water Heaters are now so unobtrusive they could be mistaken as a skylight. You may have to check with your local council regarding building restrictions when installing your solar collector. The model is also available in a range of colours to match your roof tiles.


8. Can the Vacuum Tube Solar Heater be mounted on a flat surface?
Yes. Vacuum tube solar water heaters and solar collectors can be mounted on a flat roof, or on the ground by using a stainless steel A frame.

9. How do I protect my solar system during subzero temperatures?
If you have a system that is operating in areas with subzero temperatures then freeze protection must be considered. The easiest means of preventing freezing is to use a controller with a low temperatures setting, therefore when the manifold temperature drops below a certain defined temperature (5oC), the pump will circulate, thereby warming the collector up with warm water from the storage tank. The pump will not have to run continually, just periodically, the frequency of which will depend on the outside temperature.

10. Are vacuum tube solar water heaters and solar collectors flammable?
No. The majority of the solar water heater and solar collector's components are stainless steel, aluminium, glass or rock wool. The flammability of the storage tank will depend on which type you use. A stainless steel tank will not be flammable. Vacuum tube solar collectors are therefore ideal for areas of high fire risk.

11. Can the solar water heater heat water to a high enough temperature?
Yes, the system can be designed to give you an average output temperature as high as 60-85deg C (140 - 185deg F). If you consider that when having a shower the water temperature is usually around 32-43deg C (90-110deg F), and scalding can occur at 54deg C (130deg F), this temperature output is more than sufficient. In fact in some countries you may have to fit a thermostatic tempering valve to your house plumbing to conform to government health and safety regulations. This valve will temper water down to between 43 and 50deg C (110 -122deg F).


12. What maintenance of the solar water heater and solar collector is required?
Under normal circumstances no maintenance of the system is required. Due to the shape of the tubes regular rainfall and wind should keep the tubes clean. Should a tube become broken it should be replaced. This, however, is an inexpensive and easy job. Any "handy" person can install a new tube. normal heat tube solar water heaters and solar collectors can operate with several broken tubes.


13. Can SUNECO Soar Water Heaters and Solar Collectors be used for a large-scale hot water production?
Definitely. Solar water heaters and solar collectors can be connected in series to provide large scale hot water production for a commercial settings such as a school, hotel, office building etc. There is really no limit to the size of the system!

14. Can I heat my swimming pool or spa using a SUNECO Solar Collectors?
SUNECO solar collectors are high temperature collectors, and are therefore ideal for spas, as the volume of water is small and temperature requirements high. For swimming pools, however, the volume of water is large and the temperature rise required is only several degrees. The cost of heating a pool using vacuum tube collectors (for domestic purposes) may be prohibitively high. For large-scale swimming pools, however, SUNECO collectors may be an extremely viable supplement to gas or electricity.

15. Are Vacuum Tube Collectors more efficient than flat plate collectors?
On average, ?yes. vacuum tube collectors are superior to flat plate collectors in a number of ways.
1. Due to the cylindrical shape of the vacuum tube, the sun is perpendicular to the surface of the glass for most of the day. Flat plate collectors have the disadvantage that the sun is only perpendicular to the collector at noon and thus a proportion of the sunlight striking the surface of the collector is likely to be reflected.
2. As the name suggests, air is evacuated from the vacuum tube to form a vacuum. This greatly reduces conductive and convective heat loss from the interior of the tube. As a result wind and cold temperatures have minimal effect on the efficiency of the evacuated tube collector.
3. SUNECO Solar Vacuum tube collectors can often be used in subzero temperatures without the system sustaining damage. Flat plate systems often require expensive and complicated "antifreeze" systems to be installed.
4. Vacuum Tubes are strong, long lasting, and should one be broken, inexpensive and easy to replace.
5. Due to the high efficiency absorption of solar radiation even during overcast conditions, combined with excellent isolative properties of the tube, vacuum tube collectors will heat water all year round (backup required for particularly overcast or rainy weather).
6. Due to the various advantages of vacuum tube collector over flat plate collectors, a smaller collector can be used to provide the same heating performance. For example, a standard household of 4-5 people would usually require a 250-300L-water storage tank. Depending on your location, only 2.1 - 2.8 square meters of evacuated tube surface area would be required to efficiently heat this volume of water.
7. Flat plate solar collector can produce similar heat output to vacuum tube collector, but generally only during warm, still, sunny conditions. When averaged over an entire year, vacuum tube collector heat output per net m2 of collector area, is superior to flat plate.