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AAON Orion VCCX2 User Manual

AAON Orion VCCX2
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125
VCCX2 Controller Technical Guide
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
Min Coil
Setpoint
Reset Limit
AV: 9 This is the lowest that the
Coil Temperature will be
reset to during Space
Humidity Reset of the
Coil Suction Temperature
Setpoint. If no coil
temperature reset is
required, this value should
be set the same as the
Max Coil Reset Limit.
35°F
1.7°C
70°F
21.1°C
Supply Air
Cooling
Setpoint
AV: 10 Supply Air Cooling
Setpoint. If Supply Air
Reset is congured this
is the Low SAT Cooling
Reset Value.
30°F
-1.1°C
80°F
26.6°C
Supply Air
Heating
Setpoint
AV: 11 Supply Air Heating
Setpoint. If Supply Air
Reset is congured this
is the Low SAT Heating
Reset Value.
40°F
4.5°C
240°F
115.5°C
Max SAT
Cooling
Setpoint
Reset Limit
AV: 12 If Supply Air Reset is
congured this is the High
SAT Cooling Reset Value.
0°F
-17.7°C
100°F
37.7°C
Max SAT
Heating
Setpoint
Reset Limit
AV: 13 If Supply Air Reset is
congured this is the High
SAT Heating Reset Value.
0°F
-17.7°C
250°F
121.1°C
Supply Air
Cooling
Staging
Window
AV: 14 In Cooling Mode, if the
Supply Air Temperature
drops below the Active
Supply Air Cooling Set-
point minus this Staging
Window, a Cooling Stage
will be deactivated after
its Minimum Run Time.
1°F
0.6°C
30°F
16.6°C
Supply Air
Heating
Staging
Window
AV: 15 In Heating Mode, if the
Supply Air Temperature
rises above the Active
Supply Air Heating
Setpoint plus this Staging
Window, a Heating Stage
will be deactivated after
its Minimum Run Time.
1°F
0.6°C
50°F
27.7°C
Warm-Up
Target
Temperature
(See AV: 89
for Cool-
Down Target
Temperature)
AV: 16 If Morning Warm-Up is
congured, then upon en-
tering occupied mode, the
Warm-Up Mode will be
activated if the Return Air
is below this temperature
by one degree.
50°F
10°C
90°F
32.2°C
Warm-Up
Mode Supply
Air Setpoint
AV: 17 During Morning Warm-
Up, the Supply Air
Temperature will be
controlled to this Setpoint.
40°F
4.5°C
240°F
115.5°C
Cool-Down
Mode Supply
Air Setpoint
AV: 18 During Morning Cool-
Down, the Supply Air
Temperature will be
controlled to this Setpoint.
30°F
-1.1°C
80°F
26.6°C
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
Mechanical
Cooling
Outdoor Air
Lockout
AV: 19 Mechanical Cooling will
be locked out when the
Outdoor Air Temperature
is below this Setpoint.
-30°F
-34.4°C
100°F
37.7°C
Mechanical
Heating
Outdoor Air
Lockout
AV: 20 Mechanical Heating will
be locked out when the
Outdoor Air Temperature
is above this Setpoint.
-30°F
-34.4°C
150°F
65.5°C
Low Supply
Temp Cuto
Alarm
AV: 21 Cooling will be disabled
if the Supply Air
Temperature falls below
this value. See sequence
for more details.
0°F
-17.7°C
100°F
37.7°C
High Supply
Temp Cuto
Alarm
AV: 22 Heating will be disabled if
the Supply Air
Temperature rises above
this value. See sequence
for more details.
0°F
-17.7°C
250°F
121.1°C
Preheater
Cooling
Mode Set-
point
AV: 23 If the Preheater is en-
abled, and the unit is in
the Cooling Mode, this
setpoint will be sent to the
Preheat-X Controller to
control Leaving Air
Temperature.
35°F
-17.7°C
90°F
32.2°C
Preheater
Venting
Mode Set-
point
AV: 24 If the Preheater is
enabled, and the unit is
in the Vent Mode, this
setpoint will be sent to the
Preheat-X Controller to
control Leaving Air
Temperature.
35°F
-17.7°C
90°F
32.2°C
Preheater
Heating
Mode Set-
point
AV: 25 If the Preheater is en-
abled, and the unit is in
the Heating Mode, this
setpoint will be sent to the
Preheat-X Controller to
control Leaving Air
Temperature.
35°F
-17.7°C
90°F
32.2°C
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
APPENDIX C
-
VCCX2 BACnet
®
VCCX2 BACnet
®
Parameters

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AAON Orion VCCX2 Specifications

General IconGeneral
BrandAAON
ModelOrion VCCX2
CategoryController
LanguageEnglish

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