8
en
⌯
Use the grounding terminal!
⌯
Use the grounding terminal!
4.4
Heating circuit return preheating
The controller calculates the temperature difference between collector sensor
S1 and tank sensor S2. If the difference is larger than or identical to the adjusted
switch-on value, the controller switched the 3-port valve. The heat of the tank is
used for increasing the return temperature of the heating circuit. If the tempera-
ture difference falls by 1.6 K / 2.9 °Ra (non-adjustable hysteresis) below the adjusted
temperature difference, the valve will be put into its initial position.
S1 = Tank sensor
S2 = Heating circuit return sensor
RO = 3-port valve
S1
RO
S2
1
S1
S2
2 3 4
7
RO RC N N L
8 9 10 11
2
2
3
3
⌯
Power
supply
4.5
Heat exchange control
S2
S1
RO
When the temperature difference between sensor 1 (tank 1) and sensor 2 (tank
2) exceeds the adjusted value, the circulating pump will be activated. Heat will
be transferred from tank 1 into tank 2. If the temperature difference falls by
1.6 K / 2.9 °Ra (non-adjustable hysteresis) below the adjusted temperature differ-
ence, the pump will be switched off.
S1 = Sensor tank 1
S2 = Sensor tank 2
RO = Circulating pump
1
S1
S2
2 3 4
7
RO RC N N L
8 9 10 11
2
2
3
3
⌯
Power
supply
Summary of Contents for DeltaSol A
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