De Dietrich Diemasol Ci Bedienungsanleitung Seite 31

3.1 Measured value TC - Collector temperature
The value TC shows the temperature in °C given by the collector sensor in
real time.
3.2 Measured value TS - Tank temperature
The value TS shows the temperature in °C given by the tank sensor in real
time.
3.3 Measured value TE - Heat exchanger temperature
The value TE shows the temperature in °C given by the heat exchanger
sensor in real time.
3.4 Measured value P1 - Primary circuit pump speed
The value P1 shows the solar pump speed factor in real time and as a
percentage (primary circuit pump) (relay R1 output).
3.5 Measured value P2 - Secondary circuit pump speed
The value P2 shows the secondary circuit pump speed factor in real time and
as a percentage (relay R2 output).
3.6 Measured value AH - Amount of heat
The value AH shows in kWh the total amount of heat produced by the
installation since the regulator was put into service
3.7 Measured value tc - Self-calibration time
The value tc shows the self-calibration phase time remaining in seconds.
During the self-calibration phase, the pump operates at full speed (100 %);
its speed is only controlled after the self-calibration phase.
3.8 Adjustment parameter DT - Reference temperature difference
Range of adjustment: 10 ... 20 K
Factory setting: 20 K
Switching-on difference: Non-adjustable value 10 K
Switching-off difference: Non-adjustable value 5 K
3.9 Adjustment parameter SZ - Zone changeover temperature (tank)
Range of adjustment: 20 ... 80 °C
Factory setting: 55 °C
Above a collector temperature of 55 °C (factory setting), the 3-way valve
changes to the "HIGH" position. The top solar heat exchanger is directly
supplied with solar energy. This produces hot water immediately at a
temperature of approximately 50 °C. If the zone changeover temperature is
exceeded, the display shows
19/07/05 - 94858821 - 8980-4231E
and .
The regulator reads the temperatures measured by sensors S1 and S2 and
compares the resulting temperature difference with the switching-on
difference which is preset to 10 K. Regulation is activated when the
temperature difference ∆T is equal to or greater than the preset value. The
display shows . The LED changes to green. When the value falls below
the preset 5 K switching-off difference, the regulator switches off. The
regulator tries to achieve a temperature difference of 20 K (factory setting)
between the collector and the tank to produce high temperature hot water as
rapidly as possible. To do this, it uses dynamic speed control.
Important for adjusting the DHW booster setting:
We advise you to set the domestic hot water booster temperature to 50 °C.
If the customer wants a higher temperature, parameter SZ will have to be
changed.
SZ is set to 55 °C in the factory and must always be 5 K higher than the DHW
booster circuit temperature setting(s).
If the domestic hot water boiler circuit is set at more than 50 °C, SZ must be
adjusted to 5 K above this DHW circuit temperature setting.
Diemasol Ci
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