72VCCX-454 Controller Technical Guide
APPENDIX A: SYSTEM CONFIGURATION
Networked System Single Loop Layout
SHLD
T
R
T
G
R
RS-485 LOOP
Unit Controller
(VCCX-454 shown)
Local
Local
18-30 VAC
(6 VA)
MiniLink PD
Line Voltage
18-30 VA
C
(15 VA
)
Line
Voltage
18-30 VAC
(10 VA)
Line
Voltage
VAV/Zone
BACnet (VAVZB)
Controller
Package
®
Note:
Typical terminal blocks. All
wiring to be T to T, SHLD (G)
to SHLD (G) & R to R.
Connect to next
VAV/Zone BACnet
®
Controller
on local loop
Line
Voltage
18-30 VAC
(10 VA)
VAV/Zone
BACnet (VAVZB)
Controller
Package
®
Line
Voltage
18-30 VAC
(10 VA)
VAV/Zone
BACnet (VAVZB)
Controller
Package
®
Line
Voltage
18-30 VAC
(10 VA)
VAV/Zone
BACnet (VAVZB)
Controller
Package
®
Line
Voltage
18-30 VAC
(10 VA)
VAV/Zone
BACnet (VAVZB)
Controller
Package
®
Program and configure the Orion system via
Prism II software.
T
T
LOCAL
NETWORK
SH
SH
R
R
LOCAL
LOOP
WIRE
TERMINALS
NETWORK
LOOP
WIRE
TERMINALS
ADDRESS DIP
SWITCH
24 VAC POWER
ONLY
WARNING!
POLARITY MUST
BE OBSERVED
OR THE BOARD
WILL BE
DAMAGED
LABEL P/N:
G124890
www.aaon.com
+24 VAC
GND
1
2
4
8
16
32
NET
LOOP
ON
FOR
HI
SPD
OFF
MINILINK PD 5
AAON P/N: ASM01626
ALARM
UP
DOWN
ENTERMENU
LT1785
LT1785
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
RS-485 COMM
LOOP WIRE
“R” TO “R”,
“T” TO “T”,
“SHLD” TO “SHLD”
24 VAC POWER
ONLY
WARNING!
POLARITY
MUST BE
OBSERVED
OR THE
CONTROLLER
WILL BE
DAMAGED
www.aaon.com
VCCX-454
CONTROLLER
AAON P/N: ASM07503
BINARY INPUTS
BI1 = PROOF OF AIRFLOW
BI2 = DIRTY FILTER
BI3 = HOOD ON/OFF
BI4 = REMOTE OCCUPIED
BI5 = A2L AIRSTREAM LEAK DETECT
BI6 = A2L CABINET LEAK DETECT
BI7 = NOT USED
BI8 = EMERG SHUTDOWN
ANALOG INPUTS
AI1 = SPACE TEMPERATURE
AI2 = SPACE SLIDE OFFSET
AI3 = SUPPLY AIR TEMPERATURE
AI4 = RETURN AIR TEMPERATURE
AI5 = BUILDING PRESSURE
AI6 = SUPPLY AIR TEMP RESET
AI7 = OUTDOOR AIR TEMPERATURE
AI8 = NOT CONNECTED USE DUCT
STATIC CONNECTOR
LABEL P/N
G127590
DUAL
E-BUS
+24 VAC
GND
MAIN FAN
RELAY 2
RELAY 3
RELAY 4
RELAY 5
RELAY 6
RELAY 7
RELAY 8
RELAY
COMMON
BACNET +
MAIN SUPPLY FAN VFD
ECONOMIZER/WSE
MOD HEATING
FAN VFD
EXHAUST/RETURN
BACNET SHIELD
BACNET –
= SH
= R
DUCT
STATIC
10/100
ETHERNET
USB FLASH
ONLY
= T
= AO2
= AO1
= AO3
= AO4
4
5
4
Multiple VAV/Zone BACnet
®
Controllers
can be connected to a single transformer if
desired. However, polarity must be observed
or damage to the Controller(s) will result.
Please refer to the VAV/Zone BACnet
®
Controller Package Technical Guide for
transformer sizing.
Note:
Figure 29: Typical Networked Single Loop System Layout
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