Orion System VCC-X Controller - Manual (Page 100)

APPENDIX D - VCC-X BACnet ®
VCC-X Controller Technical Guide 100
BACnet ® Properties for the VCC-X Controller
Parameter Object Description Limits
Morning
Warmup /
Morning
Cool-Down
AV:16 If Morning Warm-Up or
Morning Cool-Down is
confi gured then upon
entering the occupied mode,
the Warm-Up Mode will
be activated if the return air
is below this temperature
by one degree. If the return
air is above this temperature
by one degree, the
Cool-Down Mode will be
activated.
50 90
Warm-Up
SAT Heating
Setpoint
AV:17 During Morning Warm-Up,
the Supply Air Temperature
will be controlled to this
Setpoint.
40 240
Cool-Down
SAT Cooling
Setpoint
AV:18 During Morning Cool-
Down, the Supply Air
Temperature will be
controlled to this Setpoint.
30 80
Mechanical
Cooling
Outdoor Air
Lockout
AV:19 Mechanical Cooling will
be locked out when the
Outdoor Air Temperature is
below this Setpoint.
-30 100
Mechanical
Heating
Outdoor Air
Lockout
AV:20 Mechanical Heating will
be locked out when the
Outdoor Air Temperature is
above this Setpoint.
-30 150
Low
Supply Air
Temperature
Cutoff
AV:21 Cooling will be disabled if
the Supply Air Temperature
falls below this value. See
sequence for more details.
0 100
High
Supply Air
Temperature
Cutoff
AV:22 Heating will be disabled if
the Supply Air Temperature
rises above this value. See
sequence for more details.
0 250
Preheater
Cool Mode
Leaving SP
AV:23 If the Preheater is enabled,
and the unit is in the
Cooling Mode, this setpoint
will be sent to the
Preheat-X Controller to
control Leaving Air
Temperature.
35 90
Preheater Vent
Mode Leaving
SP
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 90
Preheater Heat
Mode Leaving
SP
AV:25 If the Preheater is enabled,
and the unit is in the
Heating Mode, this setpoint
will be sent to the
Preheat-X Controller to
control Leaving Air
Temperature.
35 90
BACnet ® Properties for the VCC-X Controller
Parameter Object Description Limits
Outdoor Air
Dewpoint
Setpoint
AV:26 On an MUA unit, if the OA
dewpoint rises above this
setpoint, Dehumidifi cation
is initiated.
35 80
Economizer
Enable
Setpoint
AV:27 The economizer is enabled
if the outdoor drybulb,
dewpoint, or wetbulb
temperature falls below this
setpoint.
-30 80
Heat Wheel
Defrost En-
able
Setpoint
AV:28 The unit will go into
Heat Wheel Defrost if the
Outdoor Air is below this
setpoint.
0 50
Preheat
Setpoint
AV:29 If the Supply Fan is
energized this is the
temperature at which the
Preheat Relay will activate
or the Preheat-X Controller
will activate. Operates only
in the Occupied Mode.
-30 70
Maximum
Sensor Slide
Adjust
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 defl ection of
the slide.
0 10
Space
Sensor
Calibration
Offset
AV:31 If the Space Temperature
Sensor is reading
incorrectly, you can use this
option to enter an offset
temperature to adjust the
Sensor’s Temperature.
-100 100
Supply Air
Sensor
Calibration
Offset
AV:32 If the Supply Air
Temperature Sensor is
reading incorrectly, you can
use this option to enter an
offset temperature to adjust
the Sensor’s Temperature.
-100 100
Return Air
Sensor
Calibration
Offset
AV: 33 If the Return
Temperature Sensor is
reading incorrectly, you can
use this option to enter an
offset temperature to adjust
the Sensor’s Temperature.
-100 100
Outdoor Air
Sensor
Calibration
Offset
AV: 34 If the Outdoor Temperature
Sensor is reading
incorrectly, you can use this
option to enter an offset
temperature to adjust the
Sensor’s Temperature.
-100 100
CO2 Sensor
Calibration
Offset
AV:35 If the CO
2
Sensor is reading
incorrectly, you can use this
option to enter an offset
value to adjust the Sensor’s
CO
2
reading.
-500 500