Split pressurized solar water heater

Working principle:
1)  when the temperature of the heat collecter reaches certain point, the cotroller will make the circulation pump work automatically.
2)  The circulation pump makes the heat-conducting liquid circulate automatically.
3)  The heat-conducting liquid transfers heat to water by the heat exchanger in the tank.
4)  If the temperature of the circulation pump is not hight enough, the circulation pump will be stop working automatically.
5)  If the temperature of the water in the tank is not hot enough, the heating device will start woking.

Features:
1.  collectors are seperated from the water tank, so the tank can be put anywhere of the house if you like.
2.  the collector can be put on both tilted roof and flat roof
3.  module design, arbitrary combination
4.  anti-feeze: There is no water inside the tubes when it works
5.  the system controller has the anti-freezing function. When the temperature reaches a certain point, the temperature circulation will operate
6.  Multifuntion: Bathing, washing, domestic heating
7.  workable at anytime

Specification
1, water tank (outer): High-quality galvanized sheet, 0.5thickness
2, water tank(inner): Porcelain enamel steel (BTC340R), 1.8mm_2.5mm thickness
3, heat preservation: Overall constant temperature and pressure Polyurethane Foam, 40mm_65mm thickness, keep hot water warm for 60_80hours
4, vacuum tube: All glass vacuum tube(high grade three high purple tube, increasing 15%, than ordinary tube in thermal efficency). Vacuum tube size: 47mm x 1600mm or 58mm x 1800mm.
5, quantity of the vacuum tube: 12/15/16/18/20/24/30/36
6, tank capacity: 80L_500L
7. Lifespan: 20 years