|
| 1.Collector |
2.Collector Sensor |
3.Manual Air Valve |
| 4.Hot Water to Taps |
5.Tempering Valve |
6.Collcetor Return |
| 7.Check Valve |
8.Hose Bibs For Filling And Flushing |
9.Expansion Tank |
| 10.Air Scoop & Air Vent |
11.Circulating Pump With Flanges Or
Couplings |
12.Pressure Relief Valve |
| 13.Pressure Gauge |
14.Collector Supply |
15.Heat Exchange Coil |
| 16.Solar Hot Water Tank |
17.Immersion Heater |
18.USDT 2001 Controller |
●The controller(18) will switch on the pump when the
temperature at the collector sensor TC is higher
than the return temperature TR by at least the pre
selected(delta T)amount.
●The pump circulates a heat transfer liquid around
the loop.
●Heat from the collector is transferred to the
domestic water through the heat exchange coil in the
tank.
●With the pump running,if delta T is not met,the
pump will switch odd.
●When a present tank temperature is reached at
Tmax,the controller switches off the pump.
●The check valve(non-return valve)prevents heat from
the tank fising towards the collectors should the
tank be warmer(e.g.at night).
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