AAON VCCX2 User Manual

80VCCX2 Controller Technical Guide
APPENDIX C: BACNET GUIDE
Analog Values
VCCX2 ANALOG VALUES
Parameter Object Description Limits
Minimum
Limits Maximum
Occupied Cooling Setpoint AV: 1 If the control temperature rises one deadband above this
setpoint, the control activates 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)
Occupied Heating Setpoint AV: 2 If the control temperature drops one deadband below this
setpoint, the control activates the heating 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)
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. Use the default setting of 30°F for this
setpoint to prevent Cooling during the Unoccupied Mode.
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. Use the default setting of 30°F for this
setpoint to prevent Heating during Unoccupied Mode.
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 resets 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)
Min Coil Setpoint Reset Limit AV: 9 This is the lowest the Coil Temperature resets 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 Setpoint minus this Staging
Window, the Cooling Stage deactivates 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, the Heating Stage deactivates 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 entering
occupied mode, the Warm-Up Mode activates if the Return
Air is below this temperature by one degree
50°F (10°C) 90°F (32.2°C)
Objects labeled AV are read/write. The only sensor values that can be written to are AV points 72, 73, and 76 through 79.

AAON VCCX2 Specifications

General

Brand	AAON
Model	VCCX2
Category	Controller
Language	English