Drain Back Solar Water Heating System 5000L For Residential
Buildings , Hotels
Haining Yinuo Electric Co., Ltd manufactures and supplies all kinds
of solar hot water heaters, Solar Hot Water Panels . Our
professional group will design the best solar heating system
solutions for your domestic house, hotel, hospital , industry
plants,green house etc.
Contact us to get the free advice and customized solutions.
Non-pressure vacuum tube solar water heater is an open loop and
thermosyphon system. The vacuum tube with special absorptive
coating can absorb the sun energy and transfer sun energy to heat
energy. Whole system works according to the thermosyphon principle.
Water in vacuum tubes is heated and then rises to top of tank. Cold
water in tank goes down to the vacuum tube bottom. Water in the
system will be heated as circulation keeps going on. This type of
solar water heater is one of the most popular systems because of
its own advantages of high efficiency,cheap price,simple
Installation and free maintenance
1) Firstly, the storage tank shall be filled with cold water, the
collector loop shall be pumped with water
2) The water in collector loop then will be heated with solar
radiation to vacuum tubes
3) When temperature discrepancy sensed between solar collector and
storage tank reaches set value in controller, the controller shall
start the circulation pump automatically
4) The circulation pump makes water circulate in the loop
5) Hot water would be pumped into storage tank and the loop again
be pumped with cold water from the bottom of storage tank
6) In case the temperature in storage tank does not reach set value
you want, then the auxiliary electrical heater would start to
7) When temperature discrepancy sensed between solar collector and
storage tank is below the set value in controller, the circulation
pump shall stop automatically
8) If the water temperature has not reached the expected value set
in the controller, then the auxiliary heating device would start to
assist solar water heating
9) Eventually the water will get heated enough as expected ready
1. Especially for large-scale hot water heating system, supplying
hot water for apartments, hotels, restaurants, schools, hospitals,
factories, swimming pools, and other places requiring large amount
hot water use.
2. Very economical and of good performance for a 15 years lifespan
3. Adaptable to different architecture structure installation
4. Anti-freezing system with good insulation to the pipelines
5. Easy installation and connection of solar collectors and
6. Able to be disigned to work with axuiliary heating devices to
assist solar water heating
|Vacuum tube||Spec. (mm)||Φ 58× 1800|
|Material||Borosilicate glass, magnetron spluttering selective coating|
|Water tank||Capacity||5000L tank|
|Inner tank||Food-grade stainless steel SUS304-2B|
|Insulation||Imported polyurethane integrated foam-forming 50~60mm|
|Tank shell||Color steel plate|
|Bracket||Spec. (mm)||1.5-4.0mm in thickness|
|Material||Hot-dip galvanized steel plate/Stainless steel plate /Aluminum
|Accessories||Stainless bolts & nuts, Silicon rubber seal, Dust proof rubber
seal, Plastic pipe holder.|
|Optional device||Electrical heater, Intelligent controller / Assistant tank, Pump|
|Tilt angle||10 ~ 50°|
|Water output||45-95 o C|
|Hail resistance||Φ 25mm|
Hot water for hotel,hospital,spa,laundry....
1. Advanced welding technology to prevent any leaking of tank
2. Special chemical layer between inner tank and outer tank to make
sure the density of foam the same everywhere
3.Non-pressurized solar water heater is such kind of a most
economical system with high efficiency at the same time. It works
depending on the gravity of water, so it's much better to be
installed on the slope or flat roof as top as possible to get
enough hydraulic pressure.
4.Automatically controlled by a computer.
5.Vacuum tube: Hail-resisting borosilicate glass with high-tech
selective coating ensures an efficient solar collecting, tri-target
vacuum tube with its patent interference coating makes the
efficiency not only improved by 12% but also with a high
temperature resistance (380oC).
6.Inner water tank: Food-grade stainless steel SUS304-2B as inner
tank keeps the water clean and drinkable, together with advanced
welding technics to ensure it with a long lifespan (15 years).
7.Water tank shell: Stainless steel for any climate.
8.Insulation Layer: Germany-imported polyurethane integrated
foam-forming with twice slaking treatment, preserves hot water
constantly as long as 70~80 hours.
9.Supporting Bracket: Hot-DIP galvanized steel plate with a good
weight bearing and wind resistance(140 km/hr), super mechanical
performance and corrosion resistance ensures a long life to ocean
coast, easy installation, universal bracket suitable for either
flat or slope roof installation.
10. Accessories: Stainless bolts & nuts, water-proof silicon
rubber, anti-aging dust-proof rubber seal, plastic pipe holder and
ventilating cap to ensure their lives as long as other parts of the