Installation - Carrier CRC2 - NTC Installation Manual

NTC Room Controller 2

Installation

Mounting
waRNING:
Before installing the Room Controller 2, turn off all power to the
Unit that will supply power to the Room Controller 2. Electrical
shock can cause personal injury or death.
It is not possible to connect more than one user's interface to each
single machine. For the correct operation of Room Controller 2
disconnect the lED card if fitted.
• Turn oFF all power to unit.
• Open the Room Controller 2 rear mounting base to expose mounting
holes.
The base can be removed to simplify mounting (snap apart carefully
at hinge to separate mounting base from remainder of the Room
Controller 2).
• Route the Room Controller 2 wires through the large hole in the
mounting base.
Level mounting base against wall (for aesthetic value only the Room
Controller 2 need not be level for proper operation) and mark the wall
through the 2 mounting holes.
• Drill two 5 mm mounting holes in wall where marked.
• Secure mounting base correctly (
anchors provided, (additional anchoring holes available for more
secure mounting if needed) making sure all wires extend through hole
in mounting base.
• Adjust length and routing of each wire to reach the proper terminal in
the connector block on the mounting base, with 6 mm of extra wire
(strip only 6 mm of insulation from each wire to prevent adjacent wires
from shorting together when connected).
GB - 4
 Mounting screws
) to wall with 2 screws and

 Connection cable
• Match and connect equipment wires to proper terminals in the
connector block.
Both power and communication wires must be connected correctly for
proper Room Controller operation.
• Push any excess wire into the wall and against mounting base.
If the air sensor is being used on the Room Controller 2, seal hole in wall
to prevent air leaks.
Leaks can affect sensor operation.
• Push the Room Controller 2 snap hinge to the base.
 






 Connection cable
 To indoor unit
 Rigid PVC conduit inside
ø 30mm min.
 Plaster approx
30 mm
 Room Controller 2
 Connector block

