Orion Control Systems AAON VCCX2 User Manual

124
VCCX2 Controller Technical Guide
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
Outdoor Air
Dewpoint
Setpoint
AV: 26 On an MUA unit, if the OA
dewpoint rises above this
setpoint, Dehumidication is
initiated.
35°F
1.7°C
80°F
26.6°C
Economizer
Enable
Setpoint
AV: 27 The economizer is enabled
if the outdoor drybulb,
dewpoint, or wetbulb
temperature falls below this
setpoint.
-30°F
-34.4°C
80°F
26.6°C
Heat Wheel
Defrost
Enable
Setpoint
AV: 28 The unit will go into Heat
Wheel Defrost if the Outdoor
Air is below this setpoint.
0°F
-17.7°C
50°F
10°C
PreHeat
Enable
Setpoint
AV: 29 If the Supply Fan is energized
this is the temperature at
which the Preheat Relay will
activate or the Preheat-X will
activate. Operates only in the
Occupied Mode.
-30°F
-34.4°C
70°F
21.1°C
Sensor Slide
Oset Max
Eect
AV: 30 If your space sensor has the
optional slide adjustment
feature, this is the maximum
amount the slide can adjust
the current heating and
cooling setpoints up or down
with full deection of the
slide.
0°F
0°C
10°F
5.5°C
Space Sensor
Calibration
Oset
AV: 31 If the Space Temperature
Sensor is reading
incorrectly, you can use this
option to enter an oset
temperature to adjust the
Sensor’s Temperature.
-100°F
-55.5°C
100°F
55.5°C
Supply Air
Sensor
Calibration
Oset
AV: 32 If the Supply Air
Temperature Sensor is
reading incorrectly, you can
use this option to enter an
oset temperature to adjust
the Sensor’s Temperature.
-100°F
-55.5°C
100°F
55.5°C
Return Air
Sensor
Calibration
Oset
AV: 33 If the Return
Temperature Sensor is
reading incorrectly, you can
use this option to enter an
oset temperature to adjust
the Sensor’s Temperature.
-100°F
-55.5°C
100°F
55.5°C
Outdoor Air
Sensor
Calibration
Oset
AV: 34 If the Outdoor
Temperature Sensor is
reading incorrectly, you can
use this option to enter an
oset temperature to adjust
the Sensor’s
Temperature.
-100°F
-55.5°C
100°F
55.5°C
Carbon
Dioxide
Sensor
Calibration
Oset
AV: 35 If the CO
2
Sensor is
reading incorrectly, you can
use this option to enter an
oset value to adjust the
Sensor’s CO
2
reading.
-500 500
Low Ambient
Protection
Setpoint
AV: 36 Temperature at which the
Low Ambient Relay will
activate in the Occupied or
Unoccupied Mode.
-30°F
-34.4°C
70°F
21.1°C
APPENDIX C
-
VCCX2 BACnet
®
VCCX2 BACnet
®
Parameters
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
SAT Cool
Setpoint
Reset Source
Low Limit
AV: 37 If doing Supply Air Setpoint
Reset, this is the Low Reset
Source value in Cooling
that will correspond to the
Supply Air Cool High Reset
Setpoint.
-30°F
-34.4°C
150°F
65.5°C
SAT Cool
Setpoint
Reset Source
High Limit
AV: 38 If doing Supply Air Setpoint
Reset, this is the High Reset
Source value in Cooling that
will correspond to the Supply
Air Cooling Setpoint (Low
Reset).
0°F
-17.7°C
150°F
65.5°C
SAT Heat
Setpoint
Reset Source
Low Limit
AV: 39 If doing Supply Air Setpoint
Reset, this is the Low Reset
Source value in Heating that
will correspond to the
Supply Air Heating High
Reset Setpoint.
-30°F
-34.4°C
150°F
65.5°C
SAT Heat
Setpoint
Reset Source
High Limit
AV: 40 If doing Supply Air Setpoint
Reset, this is the High Reset
Source value in Heating that
will correspond to the Supply
Air Heating Setpoint
(Low Reset).
0°F
-17.7°C
150°F
65.5°C
Control
Temperature
High Alarm
Oset
AV: 41 If the temperature of the
controlling sensor rises
above the Occupied Cooling
Setpoint by this value, a
High Control Temp Alarm
will occur. Only applies
if congured for Space or
Return Air Temp Control, or
as Single Zone VAV.
0°F
0°C
50°F
27.7°C
Control
Temperature
Low Alarm
Oset
AV: 42 If the temperature of the
controlling sensor falls
below the Occupied
Heating Setpoint by this
value, a Low Control Temp
Alarm will occur. Only
applies if congured for
Space or Return Air Temp
Control, or as Single Zone
VAV.
0°F
0°C
50°F
27.7°C
Heat Pump
Compressor
Heat Lockout
AV: 43 Compressor Heat will
be locked out below this
setpoint.
-30°F
-34.4°C
100°F
37.7°C
Maximum
Main Fan
VFD in
S Z VAV
Heating
Mode
AV: 44 In Single Zone VAV
conguration, this is the
max fan speed the VFD can
modulate up to in Heat Mode.
0 100
Minimum
Main Fan
VFD in
Cooling
Mode
AV: 45 In Single Zone VAV
conguration, this is the
fan speed at which the VFD
will start when Cooling
is initiated. In a VAV
conguration this is the
lowest fan speed allowed in
the Cooling Mode. In CAV
and MUA congurations this
should be set to 100%.
0 100

Orion Control Systems AAON VCCX2 Specifications

General

Brand	Orion Control Systems
Model	AAON VCCX2
Category	Controller
Language	English