AAON Orion VCCX2 User Manual

124
VCCX2 Controller Technical Guide
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
SUB 2
Sub Cool 2
AI: 266 Current Subcooling
Module 2 Sub Cool 2
reading
SUB 2
Sub Cool 3
AI: 267 Current Subcooling
Module 2 Sub Cool 3
reading
SUB 2
Pressure 1
AI: 268 Current Subcooling
Module 2 liquid line
pressure 1 reading
SUB 2
Pressure 2
AI: 269 Subcooling
Module 2 liquid line
pressure 2 reading
SUB 2
Pressure 3
AI: 270 Subcooling
Module 2 liquid line
pressure 3 reading
SUB 2
Saturation 1
AI: 271 Subcooling
Module 2 saturation
temperature 1 reading
SUB 2
Saturation 2
AI: 272 Subcooling
Module 2 saturation
temperature 2 reading
SUB 2
Saturation 3
AI: 273 Subcooling
Module 2 saturation
temperature 3 reading
SUB 2
Line Temp 1
AI: 274 Subcooling
Module 2 liquid line
temperature 1 reading
SUB 2
Line Temp 2
AI: 275 Subcooling
Module 2 liquid line
temperature 2 reading
SUB 2
Line Temp 3
AI: 276 Subcooling
Module 2 liquid line
temperature 2 reading
Occupied
Cooling
Setpoint
AV: 1 If the control temperature
rises one deadband above
this setpoint, the control
will activate the cooling
demand. This setpoint
does not determine
the mode in Occupied
operation if the unit is
congured for Supply Air
Cooling or Supply Air
Tempering.
1°F
-17.2°C
110°F
43.3°C
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
Occupied
Heating
Setpoint
AV: 2 If the control tempera-
ture drops one deadband
below this setpoint, the
control will activate the
heating demand. This set-
point does not determine
the mode in Occupied
operation if the unit is
congured for
Supply Air Cooling or
Supply Air Tempering.
1°F
-17.2°C
110°F
43.3°C
Hood On
Cooling
Setpoint
AV: 3 This is the Cooling Mode
Enable Setpoint used
only in Hood On Mode or
Space Temperature
Control of High
Percentage Outdoor Air
Units or VAV Tempering.
1°F
-17.2°C
110°F
43.3°C
Hood On
Heating
Setpoint
AV: 4 This is the Heating Mode
Enable Setpoint used
only in Hood On Mode or
Space Temperature
Control of High
Percentage Outdoor Air
Units or VAV Tempering.
1°F
-17.2°C
110°F
43.3°C
Unoccupied
Cooling
Oset
AV: 5 During the Unoccupied
Mode of Operation, this
Setpoint osets the
Occupied Cooling
Setpoint up by this
user-adjustable amount. If
you do not want Cooling
to operate during the
Unoccupied Mode, use
the default setting of 30°F
for this setpoint.
0°F
0°C
30°F
16.6°C
Unoccupied
Heating
Oset
AV: 6 During the Unoccupied
Mode of Operation, this
Setpoint osets the
Occupied Heating
Setpoint down by this
user-adjustable amount. If
you do not want
Heating to operate during
the Unoccupied Mode,
use the default setting of
30°F for this setpoint.
0°F
0°C
30°F
16.6°C
Mode Select
Deadband
AV: 7 This value is added to
and subtracted from the
HVAC Mode Setpoints to
create a control deadband
range.
0°F
0°C
10°F
5.5°C
Max Coil
Setpoint
Reset Limit
AV: 8 This is the highest 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 Min
Coil Reset Limit.
35°F
1.7°C
70°F
21.1°C
APPENDIX C
-
VCCX2 BACnet
®
VCCX2 BACnet
®
Parameters

AAON Orion VCCX2 Specifications

General

Brand	AAON
Model	Orion VCCX2
Category	Controller
Language	English