Carrier WeatherExpert 48N2 - Page 150

150
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
CL
ROOFTOP
UNIT
CL
ROOFTOP
UNIT
CL
ROOFTOP
UNIT
CL
CCN BUS
CL
COMFORT
CONTROLLER
LEGEND
CCN — Carrier Comfort Network
®
CL — ComfortLink Controls
DAV — Digital Air Volume
HVAC — Heating, Ventilation, and Air Conditioning
TCU — Terminal Control Unit
Fig. 39 — CCN System Architecture
+24 V
GND
DCOM
DI-1 DI-2 DI-3 DI-4 DI-5 DI-6
SCR
B(+)
A(-)
AGND
SCR
10 11 12 13 14 15 16 17 18 28 29 30 31 32
LEN connection from ComfortLink
Terminal X1
Fig. 40 — VFD Wiring