Unit installation

60
To connect the unit to the network:
1. Turn off power to the control box.
2. Cut the CCN wire and strip the ends of the red (+), white
(ground), and black (–) conductors. (Substitute appropriate
colors for different colored cables.)
3. Connect the red wire to (+) terminal on CIB, the white wire
to COM terminal, and the black wire to the (–) terminal.
4. The RJ14 CCN connector on CIB can also be used, but is
only intended for temporary connection (for example, a
laptop computer running Carrier network software).
5. Restore power to unit.
IMPORTANT: A shorted CCN bus cable will prevent some
routines from running and may prevent the unit from starting. If
abnormal conditions occur, unplug the connector. If conditions
return to normal, check the CCN connector and cable. Run new
cable if necessary. A short in one section of the bus can cause
problems with all system elements on the bus.
CCN BUS
BUILDING SUPERVISOR
CL
ROOFTOP
UNIT
ROOFTOP
UNIT
ROOFTOP
UNIT
ROOFTOP
UNIT
CL
NETWORK
OPTIONS
REMOTE
CCN SITE
NON CARRIER
HVAC
EQUIPMENT
AUTODIAL
GATEWAY
COMFORT
CONTROLLER
CL
CL
HEATING/COOLING UNITS
LEGEND
CCN -- Carrier Comfort Network
®
CL -- ComfortLink Controls
DAV -- Digital Air Volume
HVAC -- Heating, Ventilation, and
Air Conditoning
TCU -- Terminal Control Unit
TO
ADDITIONAL
TERMINALS
TERMINAL
SYSTEM
MANAGER
CL
TCU
TCU
TCU
DAV FAN
POWERED
MIXING
BOX
DAV AIR
TERMINAL
DAV AIR
TERMINAL
ROOFTOP
UNIT
AIR DISTRIBUTION-DIGITAL AIR VOLUME CONTROL (DAV)
C07030
Fig. 24 -- CCN System Architecture
48/50LC