1 - Jula

ENGLISHTemperature difference controlled circulationThe control program for the solar collector array starts circulation pump P1 at the pre-set temperaturedifference between the solar panel and storage tank. Press the System Setting button until itis displayed on the screen. Use the + and – buttons to select thestorage tank temperature. Factory setting60°C, setting range 45°C-75°C. Press Confirm to save the setting orCancel to exit without saving. The control panel displays the defaulttemperature difference for switch-on(10°C). Use the + and – buttons to select therequired temperature difference. Settingrange 5°C to 20°C.Press Confirm to save the setting or Cancel to exit without saving.The control panel displays the default temperature difference for switch-off (5°C).Use the + and – buttons to select the required temperature difference. Setting range 2°C to 12°C.Press Confirm to save the setting or Cancel to exit without saving.NOTE:The recommended storage tank temperature is 60°C, as scale formation increases between 60°C and70°C.Manual on/off for auxiliary heatingThe auxiliary heating device can be switched onmanually if there is not enough hot water. Switch on the auxiliary heating device bypressing Confirm until is displayed.Switch off the auxiliary heating device bypressing Cancel.Frost protectionIf the solar panel temperature falls below the programmed starting temperature for frost protection(default 5°C), circulation pump P1 starts and runs until the solar panel temperature reaches the settemperature for switching off. Press the System Setting button until itis displayed on the screen. Use the + and – buttons to select theswitch-on temperature for frost protection.Setting range -10°C to 10°C. Press Confirm to save the setting or Cancelto exit without saving.56