AAON VCCX2 User Manual

18VCCX2 Controller Technical Guide
WIRING
VCC-X EM1 Expansion Module
The VCC-X EM1 Expansion Module connects to the VCCX2
Controller with an E-BUS cable and adds an additional ve analog
inputs, ve analog outputs, three binary inputs, and ve congurable
relay outputs.
The VCC-X EM1 Expansion Module can be used in conjunction
with the E-BUS 12 Relay Expansion Module. The expansion
modules can be used individually or together to provide the required
inputs and outputs for the specic applications.
WARNING: It is very important to be certain that all wiring
is correct as shown in the wiring diagram
below. Failure to observe the correct polarity
will result in damage to the VCCX2 Controller
or Return Air Plenum Pressure Sensor.
+ EXC
- COM
Tubing to RA
plenum pressure
sensing location
Tubing to
atmospheric
sensing location
Return/Exhaust
Proof of Flow
Switch
Connect to
VCCX2 Controller
Connect to
Expansion Module(s)
(when used)
+24 VAC
GND
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
R1
R2
R3
R4
R5
RELAY OUTPUT
TERMINALS
ANALOG OUTPUT TERMINALS
GND
NOT USED
NOT USED
RETURN DAMPER
RETURN BYPASS
CHILLED WATER
EXH. DAMPER
ENTERING WATER
GND
+5V
GND
GND
GND
E-BUS
CONNECT
E-BUS
CONNECT
24 VAC POWER ONLY
WARNING! POLARITY
MUST BE OBSERVED
OR THE CONTROLLER
WILL BE DAMAGED
POWER INPUT
TERMINAL BLOCK
PRESSURE SENSOR
INPUT TERMINALS
BINARY INPUT
TERMINALS
TEMPERATURE SENSOR
TERMINALS
www.aaon.com
VCC-X EM1 EXPANSION
AAON P/N: ASM01691
RETURN/EXHAUST POF
DIRECT FIRE STATUS SIGNAL
MID SWITCH
MIXED AIR
ECONO FEEDBACK
EXHAUST DUCT
STATIC
LABEL P/N:
G040660
RC
J3
0-10 V
0-5 V
RA PLENUM
DIRECT FIRE ALARM SIGNAL
Figure 7: Entering Water Temperature Sensor, Return Air Plenum Pressure and Return/Exhaust Proof of Flow
OA Damper Mid Switch
Direct Fire Status
Direct Fire Alarm
Connect to
VCCX2 Controller
Connect to
Expansion Module(s)
(when used)
+24 VAC
GND
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
R1
R2
R3
R4
R5
RELAY OUTPUT
TERMINALS
ANALOG OUTPUT TERMINALS
GND
NOT USED
NOT USED
RETURN DAMPER
RETURN BYPASS
CHILLED WATER
EXH. DAMPER
ENTERING WATER
GND
+5V
GND
GND
GND
E-BUS
CONNECT
E-BUS
CONNECT
24 VAC POWER ONLY
WARNING! POLARITY
MUST BE OBSERVED
OR THE CONTROLLER
WILL BE DAMAGED
POWER INPUT
TERMINAL BLOCK
PRESSURE SENSOR
INPUT TERMINALS
BINARY INPUT
TERMINALS
TEMPERATURE SENSOR
TERMINALS
www.aaon.com
VCC-X EM1 EXPANSION
AAON P/N: ASM01691
RETURN/EXHAUST POF
DIRECT FIRE STATUS SIGNAL
MID SWITCH
MIXED AIR
ECONO FEEDBACK
EXHAUST DUCT
STATIC
LABEL P/N:
G040660
RC
J3
0-10 V
0-5 V
RA PLENUM
DIRECT FIRE ALARM SIGNAL
Mixed Air Sensor
Figure 8: Direct Fire Wiring

AAON VCCX2 Specifications

General

Brand	AAON
Model	VCCX2
Category	Controller
Language	English