Operating instructions
34
730.138 | 08.12
EN
System 12: 2 collector arrays (east/west roof) –
1 swimming pool in stand-alone operation
with external heat exchanger
Description of the solar function: When the switch-on temperature
difference between the swimming pool C1 (T3) and one or the other of
the collector arrays A1, A2 (T1, T2) is reached, then either solar circuit
pump R1 for collector array A1 (T1), or solar circuit pump R2 for collector
array A2 (T2) is switched on, depending on where the temperature dif-
ference occurs. When the switch-on temperature difference is reached
for both collector arrays A1, A2 (T1, T2), then both pumps R1, R2 are
switched on. The pumps switch off independently of each other, when
either the relevant switch-off temperature between one of the collector
arrays A1, A2 (T1, T2) and the swimming pool C1 (T3) or a safety limit is
reached. The swimming pool pump is controlled externally.
Loading strategy of solar circuit pump R1:
In the factory, the load-
ing strategy is set to temperature differential control. This cannot be
altered.
Loading strategy of solar circuit pump R2:
It is not possible to select
whether temperature difference control or target temperature control
is to be used as the loading strategy. Solar circuit pump R2 operates
according to the switch-on and switch-off temperature difference
parameter values.
Activating the system: see chapter 7.2. "Selecting a system".
Terminal layout
C1
A1
R2
A2
T1
T2
N L N
R1
N
n.c.
n.c.
X
L
L
n.c.
1
2
3
4
5
D1
230 V~
115 V~
n.c.
n.c.
T1
T2
T3
R2
R1
T3
R1
R2
n.c.
n.c.
F1
N L N
R1
N
n.c.
n.c.
X
L
L
n.c.
1
2
3
4
5
n.c.
n.c.
R2
n.c.
n.c.
Display: 2.3.5Display: 2.3.5
A1: collector array 1
A2: collector array 2
C1: swimming pool
D1: wire bridge
F1: external heat exchanger
R1: solar circuit pump 1
R2: solar circuit pump 2
T1: collector sensor 1
T2: collector sensor 2
T3: sensor swimming pool
A1: collector array 1
A2: collector array 2
C1: swimming pool
D1: wire bridge
F1: external heat exchanger
R1: solar circuit pump 1
R2: solar circuit pump 2
T1: collector sensor 1
T2: collector sensor 2
T3: sensor swimming pool