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2.2
Electrical connection
WARNING!
Electric shock!
Upon opening the housing, live parts are exposed!
Î Always disconnect the device from power supply be-
fore opening the housing!
ATTENTION!
ESD damage!
Electrostatic discharge can lead to damage to electronic com-
ponents!
Î Take care to discharge properly before touching the
inside of the device!
Note
Connecting the device to the power supply must always be the last step
of the installation!
Note
The mains connection must be carried out with the common ground of
the building to which the pipework of the solar circuit is connected.
Note
The pump speed must be set to 100 % when auxiliary relays or valves are
connected.
Note
It must be possible to disconnect the device from the mains at any time.
Î Install the mains plug such that it is accessible at any time.
Î If this is not possible, install a switch that can be accessed.
If the mains cable is damaged, it must be replaced by a special connection
cable which is available from the manufacturer or its customer service.
Do not use the device if it is visibly damaged!
Made in Germany
DeltaSol
CS Plus
®
PWM 1/2
Seriennummer
Temp. Sensor Pt1000
VFD
S1
S2
S3
S4
VBus
1 2
3 4 5 6 7 8 9 10
VBus
sensor terminals
The power supply of the device must be 100 ... 240 V~ (50 ... 60 Hz). Attach flexible
cables to the housing with the enclosed strain relief and the corresponding screws.
The controller is equipped with 2 semiconductor relays to which loads such as
pumps, valves, etc. can be connected:
Relay 1
18 = Conductor R1
17 = Neutral conductor N
13 = Protective earth conductor ⏚
The mains connection is at the following terminals:
19 = Neutral conductor N
20 = Conductor L
12 = Protective earth conductor ⏚
Connect the temperature sensors (S1 to S4) to the corresponding terminals
with either polarity:
1 / 2 = Sensor 1 (e. g. collector sensor 1)
3 / 4 = Sensor 2 (e. g. store sensor 1)
5 / 6 = Sensor 3 (e. g. store sensor top)
7 / 8 = Sensor 4 (e. g. return sensor)
The cables carry low voltage and must not run together in a cable conduit with
cables carrying a voltage higher than 50 V (please pay attention to the valid local
regulations). The cable lentghs depend on the cross sectional area.
Example: up to 100 m at 1.5 mm², up to 50 m at 0.75 mm². The cables can be ex-
tended with a two-wire cable.
T2A
100 – 240 V~
50 – 60 Hz
IP 20
R1
N
L
R1
1 (1) A 240 V~
18
19
20
R2
1 (1) A 240 V~
N R2
N
12
13
14
15
16
17
®
protective earth
load
conductor terminal
terminals
Relay 2
16 = Conductor R2
15 = Neutral conductor N
14 = Protective earth conductor ⏚
Fuse
mains
terminals
7
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