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Cable routing
Model
012-016-020
Model
004-008-010
1
5
A
B
legend
1
Holes for fixing screw to frame
2
Screw for earth connection
3
Connector J2
4
Bus connector J9
5
Relay board E-HTR (only for mode with electric heater)
6
Power supply connector
7
Connector for motorised supply air dampers
8
Connector for infrared receiver
A
Unit power supply entry
B
Low-voltage cable entry (bus, user interfaces)
4.3.2 - Opening the control box for the standard connections
1
Remove the screw
2
Remove the two plastic clips
3
Remove the cover
EN-7
3
7
1
8
A
B
6
7
4.3.3 - Communication bus connection
The connector J9 permits connection of the CCN bus. It is
located to the left of connector J2. This is a connector with
three pins:
4
Pin 1: communication +
Pin 2: communication 0 V
Pin 3: communication -
Refer to the diagram "Standard connections to the controller
box (shown open)".
5
4.3.4 - Connection of the user interface, digital inputs and
room temperature sensor
The connection of the user interface to the controller is
6
made via connector J2 (ZUI2, CRC2, SUI) or J19 (IR2).
Connection principle to cage-clamp terminal
8
1
Insert a flat screwdriver (max. 3.5 mm) into the terminal
opening holes. This allows opening the terminal underneath
to insert the cables. The maximum connection cable section
is 2.5 mm². Once the cable is connected, pull lightly to
3
ensure that it is well locked in the terminal.
4
2
Controller-side connections (J2)
1
COM IN
COM OUT/SUI occupation LED
2
3
0 V d.c.
4
+12 V d.c.
5
Digital input 1
6
0 V d.c.
7
Speed selector input
(Fan speed in)
8
Setpoint offset input (Setpoint in)
9
0 V d.c.
10
Room or return air sensor/occupied-
unoccupied mode change
11
Digital input 2
12
0 V d.c.
For the connection on the user interface side refer to the
installation manual for this interface.
En
EnGLiSH
-
Connector J2
1 2 3 4 5 6
1
6
7 8 9 0
@
!
@
7
EN-7
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