Bedienungsanleitung Sorel STDC (Seite 22 von 24) (Englisch)

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Example: displayed collector temperature 40°C, read previous temperature 39°C, displayed storage temperature 30°C, read return tem-

perature 31° means a setting of -20% (displayed ∆T 10K, actual ∆T 8K => -20% correction value)

The heat quantity data in the “Constant flow” mode only consists of calculated values for the functional inspection of the system.

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 tem-

perature 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 there is still no normal switching con-

dition 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.

Daylight saving time

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

8. Menu Lock

Secure the controller against unintentional changing and compromise of basic func-

tions.

Menu lock active = "On"

Menu lock off = "Off"

In addition, the "Simple" menu view can be used to hide menu items that are not neces-

sary for the daily use of the controller after commissioning. The menu item "Menu lock

on/off" is also hidden when the "Simple" menu view is selected!

The menus listed below remain completely accessible despite the menu lock being

activated, and can be used to make adjustments if necessary:

1. Measurement values

2. Statistics

4. Settings

6. Special Functions

7. Menu lock

9. Language

9. Service Values

Serve for remote diagnosis by a specialist or the manufacturer in the event of errors,

etc.

Enter the values into the table when an error occurs.

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Sorel STDC Seite 22

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