Bedienungsanleitung Sorel LTDC-E (Seite 19 von 24) (Englisch)

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May only be started by a specialist during commissioning! Observe the explanations for the individual parameters in

these instructions, and check whether further settings are necessary for your application.

Factory Settings

All settings can be reset, returning the controller to its delivery state.

All of the controller‘s parametrization, statistics, etc. will be lost irrevocably. The controller must then be commissioned

once again.

Starting aid

For some solar systems, in particular for vacuum tube collectors, the measurement recording on the collector sensors may be too

slow or imprecise, because the sensor is often not on the warmest spot. With an activated starting aid, the following procedure

occurs: If the temperature on the collector sensor increases within a minute by the value defined under “increase”, the solar cir-

culation pump will be turned on for the set “purging time” so that the medium to be measured is transported to the collector

sensor. If there is still no normal switching condition through this, there will be a 5 minute block time for the start wizard function.

This function should only be activated by a technician if problems occur with the measurement recording. Observe in

particular the instructions from the collector manufacturer.

The menus "Purging time" and "Increase" are only displayed when the starting aid function is set to "On".

Purging time

If the temperature on the collector sensor increases within a minute by the value defined under “increase”, the solar circulation

pump will be turned on for the set “purging time” so that the medium to be measured is transported to the collector sensor. If the

set ΔT is not reached, a 5-minute circulation pause time for the starting aid function will apply.

Increase

If the temperature at the collector reaches within a minute the value defined, the solar pump is turned on for the duration of the

purging time.

Time & Date

Serve to set the current time and date.

For system data statistics it is essential for the time to be set accurately on the controller. Please note that the clock

continues to run for about 24 hours if the mains voltage is interrupted, and afterward must be reset. Improper oper-

ation or an incorrect time may result in data being cleared, recorded incorrectly or overwritten. The manufacturer

accepts no liability for the recorded data!

Daylight saving time

If this function is activated, the controller automatically changes to winter time or summer time (DST, Daylight Savings Time).

Eco Display Mode

In Eco Display Mode the backlight of the display is switched off if no buttons are pushed for 2 minutes.

If a message exists, the backlight does not switch off until the message has been scanned by the user.

Temperature unit

In this menu, you can select which temperature unit is displayed.

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