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− Hang the controller over the top fixing point and secure
it to the wall at the bottom using the wall plug and fixing
screw provided.
Fixing hole
− Make all necessary electrical connections as instructed in
the next section, respecting the markings of the termi-
nals.
− Fit the cover over the top of the controller and fix it in
place with the cross-head screw.
14 ELECTRICAL CONNECTIONS
POWER SUPPLY
The controller must be connected to a power supply of the fol-
lowing voltage and frequency: 100-240 V and 50-60 Hz.
Fit a breaker-disconnector in the power supply line to discon-
nect the controller for maintenance.
Solar controller power connections:
20
Live terminal for power cable
19
Neutral terminal for power cable
12
Earth (ground) terminal for power cable
Relay outputs for device control
Relays R1-R2 function like electromechanical relays for switching
on and off devices such as pumps, valve servomotors, etc.. Relay
R1 is an electromechanical relay
Water connections:
R1
18
live wire / control switch for switching pump on/off
17
neutral wire
13
earth (ground) wire
Water connections:
R2
16
live wire / control switch for switching pump on/off
15
neutral wire
14
earth (ground) wire
Suspension
point
9
IP 20
R1
1 (1) A 240 V~
1 (1) A 240 V~
R2
1
2
1
3
Inputs for temperature sensors
The controller has 4 inputs, each identified by a code:
S1-S2-S3-S4 are the cable terminals for the PT1000 temperature
sensors used in the selected system layout. Cable polarity is not
important.
1-2
sensor 1 (e.g. collector 1 temperature sensor)
3-4
sensor 2 (e.g. storage cylinder 1 bottom temperature)
5-6
sensor 3 (e.g. storage cylinder 1 top temperature sensor)
7-8
sensor 4 (e.g. collector 1 return temperature sensor)
Made in Germany
PWM
Temp . Sensor Pt1000
VFD
S
1
S
1 2
3 4 5 6 7 8 9 10
Sensor terminals S1...S4
Connected PT 1000 temperature sensors can be checked with a
multimeter-tester. Their temperatures can be compared with
the resistance values given below.
°C
Ω
-10
961
-5
980
0
1000
5
1019
10
1039
15
1058
20
1078
25
1097
30
1117
35
1136
40
1155
45
1175
50
1194
Resistance values for Pt1000 sensors
T2A
100 ... 240 V~
50-60 Hz
R1 N
L
18
1
9
2
0
N R2
N
1
4
1
5
1
6
1
7
R1
1 (1) A 240 V~
R2
1 (1) A 240 V~
2
S
3
S
4
V
B
u
s
°C
55
1213
60
1235
65
1252
70
1271
75
1290
80
1309
85
1328
90
1347
95
1366
100
1385
105
1404
110
1423
115
1442
Ω
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