Dimplex SOLCU Installation And Operating Instructions Manual page 25

Display: .1.3 Display: .1.3
A1: collector array A1: collector array
B1: storage tank B1: storage tank
D1: wire bridge D1: wire bridge
F1: external heat exchanger F1: external heat exchanger
R1: storage tank loading R1: storage tank loading
pump pump
R: solar circuit pump R: solar circuit pump
T1: collector sensor T1: collector sensor
T: lower area of storage tank T: lower area of storage tank
T3: sensor ext. heat exchanger T3: sensor ext. heat exchanger
EN
  System 3: 1 collector array –
1 storage tank with external heat exchanger
Description of the solar function: The solar circuit pump R is switched
on as soon as the switch-on temperature difference between the collec-
tor array A1 (T1) and the storage tank B1 (T) is reached. When the
switch-off temperature difference or a safety limit is reached, the solar
circuit pump R switches off again. The storage tank loading pump R1 is
switched on as soon as the switch-on temperature difference between
the external heat exchanger F1 (T3) and the storage tank B1 (T) is
reached. The storage tank is loaded until the switch-off temperature
difference between the external heat exchanger F1 (T3) and the storage
tank B1 (T) is reached, or until a safety limit is reached.
Loading strategy of solar circuit pump R1: In the factory, target tem-
perature control is chosen as the loading strategy for the storage tank
B1. It can be adjusted or changed using the "Parameters" menu (chapter
7.4 "Parameters").
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 R operates
according to the switch-on and switch-off temperature difference
parameter values.
Activating the system: see chapter 7.. "Selecting a system".
Terminal layout
N L N R1 N
n.c. n.c.
L
n.c.
T1
R2
730.138 | 08.1
R2 1 2 3 4 5
n.c. n.c.
L X
n.c. n.c.
D1
B1
F1 T3
T2
R1
5