The Ntc Controller; Wiring/Installation Diagrams; Control Box Shown Open For Standard Connections Or Maintenance; Connection Between Chilled Beam 1 And Chilled Beam 2 - Carrier NTC 36CB Installationsanleitungen

En
EnGLisH

4.2.2 - The nTC controller

For the overall dimensions please refer to the diagram
below.
Dimensions of the NTC controller, mm

4.3 - Wiring/installation diagrams

4.3.1 - Control box shown open for standard connections
or maintenance
4
2
3
1 Remove the screw
2 Remove the two plastic clips
3 Remove the small cover
4. For maintenance: Remove the screw and the two plastic clips to remove the
large cover
EN-6
190
4

4.3.2 - Connection between chilled beam 1 and chilled beam 2

There are two types of boxes:
• Box with mother and daughter board
• Box with daughter board only.
Chilled beam 1 (connections on NTC sub-controller 1) is
the chilled beam connected to the box with the mother
and daughter board.
Chilled beam 2 (connections on NTC sub-controller 2) is
the chilled beam connected to the box with a daughter
board only.
All control electronics are contained in the mother board.
Use connector Q12 and the wire harness provided to
connect chilled beam 1 and chilled beam 2. Do not
connect the power supply to chilled beam 2.
Connction cable between chilled beams 1 and 2

4.3.3 - Communication bus connection

Connector J9 permits connection of the communication
bus. It is located to the left of connector J2. This is a
connector with three pins:
Pin 1: communication +
Pin 2: communication 0 V
Pin 3: communication -
Refer to the diagram "View of all NTC connectors".
4.3.4 - Connection of the user interface, digital inputs and
room temperature sensor
The connection of the user interface to the controller is
4
made via connector J2 (ZUI2, CRC2, SUI) or J19 (IR2).
Connection principle to cage-clamp terminal
2
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 ensure that it is well locked in the terminal.
Chilled beam 1
Chilled beam 2
-
EN-6