1. Electronics
Non-pressurzied compact solar water heater consists of thermosiphon
vacuum tubes, storage tank,brac-
ket, pipeline and auxiliary parts. its storage tank and evacua-ted
tubes are installed as one unit,and all gl-
ass evacuated tubes are inserted into the storage tank.
This system can be installed on the roof in many methods, the pipes
can be arra-nged in the preset groo-
ve.It can be easily used to save the electricity power, oil, gas in
a big extent. You can use it for shower/bathing, washing, laundry
in single family, farming camping area, sports areas,swimming areas
and holiday residences.
2. Controller
Product information
Main technical specifications
1. Power supply: AC220V±10%, power consumption :< 5W
2. Accuracy of tested temperature2℃
3. Range of temperature to be tested:0~99℃
4. Power of controllable cycle pump :< 800W
5. Power of electric heater:3000W
6. Three inputs and two outputs
Main functions
1. Pump cycle function based on temperature difference
2. Preset electrical back up start time. (Three periods)
3. Freeze protection
4. over heat protection
5. Temperature display (Collector, Upper part of tank, Bottom part
of tank)
6. Auto recovery and setting memory after power cut.
7. Trouble display
8. Clear LCD display
9. Second cycle pump control
3. Connecting Accessories
It is widely used in the installation of the solar pipeline.
4. Expansion Tank
Closed-loop systems require an expansion tank. An expansion tank
has a chamber in which air is locked inside a bladder or diaphragm.
It screws into standard 1/2-inch or 3/4-inch threaded plumbing
fittings. When pipes are filled with heat transfer fluid (water and
glycol), and the operating pressure of the system is set, the fluid
will occupy a given volume based on the temperature.
As the fluid is heated by the sun, it expands. This is where the
expansion tank is critical. Without it, something would blow! The
expansion tank allows the fluid to safely expand by compressing the
air in the chamber. The size of the expansion tank needed depends
on the total volume of fluid, which is determined by the number and
size of collectors, and the length and diameter of the pipes in the
solar loop.
5. glandless pumps
Product information
Pumps are used in active systems, but are not required in batch or
thermosyphon systems. They circulate water or antifreeze between
the solar collector and the storage tank. The right pump for the
job depends on the size of the system and the distance and height
between the collector(s) and the storage tank. Good pumps can last
as long as 20 years with heavy use.
