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3
NETWORK
OPTIONS
REMOTE
CCN SITE
AUTODIAL
GATEWAY
NON CARRIER
HVAC
EQUIPMENT
TERMINAL
SYSTEM
MANAGER
TCU
ROOFTOP
UNIT
DAV AIR
TERMINAL
TCU
TCU
DAV AIR
TERMINAL
AIR DISTRIBUTION-DIGITAL AIR VOLUME CONTROL (DAV)
DAV FAN
POWERED
MIXING
BOX
TO
ADDITIONAL
TERMINALS
HEATING/COOLING UNITS
BUILDING SUPERVISOR
ROOFTOP
UNIT
PIC
ROOFTOP
UNIT
PIC
ROOFTOP
UNIT
PIC
ROOFTOP
UNIT
PIC
CCN BUS
PIC
COMFORT
CONTROLLER
LEGEND
CCN
— Carrier Comfort Network
DAV
— Digital Air Volume
HVAC
— Heating, Ventilation, and Air Conditioning
PIC
— Product Integrated Controls
TCU
— Terminal Control Unit
Fig. 1 — CCN System Architecture