3
Connection of temperature sensors
The connection of the temperature sensors has to be
done respectively to the following terminal blocks:
•
3 and 4 (IN1) for fluid delivery temperature (T
D
)
•
5 and 6 (IN2) for fluid return temperature (T
R
)
•
7 and 8 (IN3) for external air temperature (T
E
)
Connection of power supply
The connection of the 230 Vac 50/60 Hz power supply is
made with the screw terminals 1 and 2 (L, N) located at
the bottom front of the device.
Characteristics of the terminals
• screw clamping of conductors
• maximum cross section of conductor 2.5 mm²
• recommended wire stripping approx. 6 mm
•
torque max 0.5 Nm
Warning!
Use exclusively NTC temperature sen-
sors 10 kΩ at 25°C (ß = 3435). The maximum di
-
stance between sensors and device cannot be lon-
ger than 10 m.
!
L
N
+
-
230 Vac
50/60 Hz
KNX
bus
15
16
POWER AUX
3
4
IN1
5
6
IN2
7
8
IN3
20
21
DO1
22
23
DO2
24
25
DO3
9
10
IN4
11
12
IN5
13
14
AO1
17
18
19
OPEN
CLOSE COM
1
2
L
N
bus KNX
EK-HH1-TP
Mixing group controller
OK
ESC
+
-
Dev.
Line
Area
45
15
16
POWER AUX
3
4
IN1
5
6
IN2
7
8
IN3
20
21
DO1
22
23
DO2
24
25
DO3
9
10
IN4
11
12
IN5
13
14
AO1
17
18
19
OPEN
CLOSE COM
+
-
M
Auxiliary power supply
(24 Vac or 230 Vac)
COM
OPEN
CLOSE
Servomotor with 0...10 V control signal
The connection of the servomotor is made with the termi-
nal blocks 13 and 14 (AO1).
45
15
16
POWER AUX
3
4
IN1
5
6
IN2
7
8
IN3
20
21
DO1
22
23
DO2
24
25
DO3
9
10
IN4
11
12
IN5
13
14
AO1
17
18
19
OPEN
CLOSE COM
+
-
M
–
+
Connection of circulating pump
The connection of the circulating pump is made with the
terminal blocks 20 and 21 (DO1).
45
15
16
POWER AUX
3
4
IN1
5
6
IN2
7
8
IN3
20
21
DO1
22
23
DO2
24
25
DO3
9
10
IN4
11
12
IN5
13
14
AO1
17
18
19
OPEN
CLOSE COM
+
-
L
N
230 Vac
50/60 Hz
Control
board
T
M
45
15
16
POWER AUX
3
4
IN1
5
6
IN2
7
8
IN3
20
21
DO1
22
23
DO2
24
25
DO3
9
10
IN4
11
12
IN5
13
14
AO1
17
18
19
OPEN
CLOSE COM
+
-
T
E
T
R
Warning!
The electrical connection of the device
can be carried out only by qualified personnel. The
incorrect installation may result in electric shock or
fire. Before making the electrical connections, make
sure the power supply has been turned off.
!
Connection of servomotor
3 point floating servomotor
The connection of the servomotor is made with the termi-
nals 17, 18 and 19 (CLOSE / COM / OPEN); it is neces
-
sary also the connection of a 230 Vac or 24 Vac auxiliary
power supply with the screw terminal blocks 15 and 16
(POWER AUX).