TATA BP SOLAR Zing, User Manual

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2.3 WORKING PRINCIPLE OF ZING HEAT EXCHANGER SYSTEMS :
In Heat Exchanger System we have 2 loops. They are ;
1. Primary loop with soft water : Soft water / anti-freeze solution
enters into the collector & gets heated. Then it enters Heat
Exchanger where heat is lost, water cools and enters the collector
again. This cycle is continuous throughout the day.
2. Secondary loop : Cold water enters at bottom gets heated when in
contact with Heat Exchanger and leaves through the hot water
outlet.
2.4 WORKING PRINCIPLE OF ZING PRESSURIZED SYSTEMS :
Zing pressurized systems also works similar to Zing systems. But the
difference is that cold water outlet is connected to the bottom flange of
the collector & the hot water outlet is taken from the top flange. The
inlet water to the tank is pressurized. These systems are designed to
2
work at 5 kg/cm & if this pressure exceeds, the system may fail & the
tank may burst. In such cases, the warranty is void.