ASC02-01WM Description
EN2B-0365GE51 R0710
11
3 Description
3.1 Controller in the solar circuit
3.1.1 The purpose of the controller
The controller controls the pump in a solar thermal system.
3.1.2 The structure of the solar circuit
Storage tank
Pump
Collector
T1
T2
Temperature sensor 1
(collector sensor)
Temperature differential controller
Solar circuit
Temperature sensor 2
(lower area of storage tank)
3.1.3 The function of the solar circuit
The controller constantly compares the temperatures between the
collector (T1) and the lower area of the storage tank (T2) via
temperature sensors. Once the sun heats the collector and there
is a temperature difference of 8 K (adjustable parameter) between
the collector and the storage tank, the pump is switched on.
The pump extracts the heat transfer fluid from the lower cooler
area of the storage tank and pumps it to the collector. The heat
transfer fluid in the collector is heated by the sun and flows back
to the storage tank.
The heat transfer fluid heats the domestic water via a heat
exchanger located in the storage tank.
Summary of Contents for ASC02-01WM
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