IDEAL Solar Thermal, Установка и обслуживание

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52
insTallaTion
Solar Thermal -
Installation and Servicing
SOLAR CONTROLLER
49 iDeal solar conTroller - operaTing THe conTroller continued
secTion f
SET
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Press the ‘SET’ button for 2 seconds to open the settings menu.
At first, the current valid maximum storing temperature value is
displayed.
To illustrate which value is referred to, the ‘max’ indicator in the
storage tank symbol and the T2 sensor flash.
To alter the maximum storage temperature: - Press and hold the
set button for two seconds using the and buttons, select the
maximum storage temperature indicator. (value and T2 Flash) Using
the and buttons adjust the value. When the desired value is
showing, press and hold the set button for two seconds to save the
value.
Press the button to reach the next setting.
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VROB
secTion g
The controller constantly compares the temperature on the collector (T1) and in the
lower part of the storage tank (T2). If while charging the storage tank, a sufficient
temperature difference (8K) is recognized, this is indicated by the sun in the display.
If no safety control or functions prohibit the pump operation, an animated pump
operation now begins to move in the display. If the temperature difference drops
below 4K, the pump operation is deactivated and the sun disappears.
If in the lower part of the storage tank (T2), the set maximum storing temperature
is reached (factory setting 60°C), the charging stops. (Pumps are stationary). A
new charging procedure is first possible at a temperature of 4K under the maximum
storing temperature.
The ‘max’ indicator flashes in the storage tank symbol to illustrate that although the
sun is displayed, the pump is stationary.
If the solar circuit stops (e.g. due to a full tank) at a high irradiance, the solar fluid in
the collector can assume a temperature higher than 130°C and vaporize. To protect the
pump, the pump operation is blocked until the temperature drops below 127°C (storage
tank cools down in the meantime).
THE STEAM INDICATOR FLASHES ON THE COLLECTOR SYMBOL TO ILLUSTRATE
THAT THERE IS STEAM IN THE COLLECTOR AND THE PUMP HAS SWITCHED
OFF.
WARNING. It is recommended that the solar store temperature set point is not set below 60°C as this temperature
facilitates the eradication of Legionella bacteria.
Risk of scalding from the solar storage tank if set above 60°C
It is recommended that a thermostatic mixing valve (TMV) is set to 60°C or below and is fitted local to the solar
cylinder.
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