9
en
4.3
Heat exchange control
⌯
Use grounding terminals!
7
RO RC N N L
8 9 10 11
⌯
2
2
2
3
3
S2
S1
RO
When the temperature difference between sensor 1
(store 1) and sensor 2 (store 2) exceeds the adjust-
ed value, the circulating pump will be activated. Heat
will be transferred from store 1 into store 2. If the
temperature difference falls by 1.6 K (non-adjustable
hysteresis) below the adjusted temperature difference,
the pump will be switched off.
S1 = Sensor store 1
S2 = Sensor store 2
RO = Circulating pump
4.2
Heating circuit return preheating
⌯
Use grounding terminals!
The controller calculates the temperature difference
between collector sensor S1 and store sensor S2. If
the difference is larger than or identical to the adjust-
ed switch-on value, the controller switches the 3-port
valve. The heat of the store is used for increasing the
return temperature of the heating circuit. If the tem-
perature difference falls by 1.6 K (non-adjustable hys-
teresis) below the adjusted temperature difference, the
valve will be put into its initial position.
S1 = Store sensor
S2 = Heating circuit return sensor
RO = 3-port valve
7
RO RC N N L
8 9 10 11
⌯
2
2
3
3
S1
RO
S2
Mains
Mains
ON
OFF
1
2
3
4
E
A
ON
OFF
1
2
3
4
ON
OFF
1
2
3
4
E
A
ON
OFF
1
2
3
4