Carrier 48HC 04-28 Controls, Start-Up, Operation And Troubleshooting page 85

BUILDING SUPERVISOR
NETWORK
OPTIONS
REMOTE
AUTODIAL
CCN SITE
GATEWAY
NON CARRIER
HVAC
EQUIPMENT
COMFORT
CONTROLLER
LEGEND
CCN — Carrier Comfort Network
CL — ComfortLink Controls
DAV — Digital Air Volume
HVAC — Heating, Ventilation, and Air Conditioning
TCU — Terminal Control Unit
CCN BUS
ROOFTOP
UNIT
CL
ROOFTOP
UNIT
CL
TERMINAL
SYSTEM
MANAGER
CL
ROOFTOP
UNIT
AIR DISTRIBUTION-DIGITAL AIR VOLUME CONTROL (DAV)
®
Fig. 39 — CCN System Architecture
HEATING/COOLING UNITS
TCU
TCU
DAV AIR DAV AIR
TERMINAL TERMINAL
85
ROOFTOP
UNIT
CL
ROOFTOP
UNIT
CL
TO
ADDITIONAL
TERMINALS
TCU
DAV FAN
POWERED
MIXING
BOX