Orion Control Systems AAON VCCX2 User Manual

47
VCCX2 Controller Technical Guide
Modulating Cooling Output
This output is used to control a Modulating Chilled Water Valve
to maintain the Cooling Supply Air Temperature Setpoint. The
output is congured for 2-10 VDC direct acting operation. See
Figure 28, this page for wiring details.
+24 VAC
GND
RELAY
CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
R1
R2
R3
R4
R5
RELAYOUTPUT
TERMINALS
ANALOG OUTPUT TERMINALS
GND
NOTUSED
NOTUSED
RETURN DAMPER
RETURN BYPASS
CHILLEDWATER
EXH. DAMPER
E-BUS
CONNECT
24 VACPOWER
ONLY
WARNING!
POLARITY
POWER INPUT
TERMINAL BLOCK
VCC-XE EXPANSIONM1
AAON P/N: ASM01691
LABELP/N:
G040660
RC
2+
Y13
COM1
VCC-XEM1
Ex
pansion Module
18-30 VAC
GND
Line Voltage
ChilledWater
ValveActuator
VCC-XE 1 Module =5 VAM
correct total load.
Size transformerfor
Figure 28: Chilled Water Valve Actuator Wiring
WARNING: Observe Polarity! All boards must be
wired with GND-to-GND and 24 VAC-
to-24 VAC. Failure to observe polarity
will result in damage to one or more of the
boards. Expansion modules must be wired
in such a way that the expansion modules
and the controller are always powered
together. Loss of power to the expansion
module will cause the controller to become
inoperative until power is restored to the
expansion module.
WIRING
Chilled Water Valve Actuator

Orion Control Systems AAON VCCX2 Specifications

General

Brand	Orion Control Systems
Model	AAON VCCX2
Category	Controller
Language	English