Orion System PT-Link II LON - Manual (Page 34)

PT-Link II LON ® Technical Guide
PT-Link II Interface 34
Appendix C - VCB-X LON Parameters
SNVTs for the VCB-X Controller
Binary Output SNVTs are SNVT_lev_disc
all other SNVTs are SNVT_count_inc_f
Parameter Name Object Description Limits
Outdoor
Wetbulb OaWtbl Analog
Output
Current cal-
culated value
of the outdoor
wetbulb
temperature.
Preheat
Relay
Setpoint
PreHtAmb Analog
Input
If the Supply
Fan is ener-
gized this is the
temperature
at which the
Preheat Relay
will activate.
Operates only
in the Occupied
Mode.
-30 70
Proof of Flow
Alarm
PofAlm Binary
Output Indicates no
Proof of Water
Flow.
Reheat
Enabled
RehtEnbl Binary
Output Modulating
Hotgas Reheat
Enabled.
Reheat Valve
Position
RtVlvPos Analog
Output
Current
position of
MHGRV
modulating
hot gas reheat
valve.
Missing
Reheat
Module
MisMH-
GRV
Binary
Output Indicates that
the MHGRV
Module is not
communicating
with the VCB-
X Controller.
Return Air
CFM
RaCFM Analog
Output
Current Return
Airfl ow
Measurement.
Missing
Return Air
CFM Sensor
RaCfmSr Binary
Output Indicates
that the Return
Air CFM
Sensor is not
detected.
Return Air
Damper
Position
RaDmp Analog
Output
Current Return
Air Damper
position.
Return Air
Humidity
RaRH Analog
Output
Current value
of the Return
Air Humidity
Sensor.
Return Air
Temperature
RaTp Analog
Output
Current value
of the return
temperature
sensor.
SNVTs for the VCB-X Controller
Binary Output SNVTs are SNVT_lev_disc
all other SNVTs are SNVT_count_inc_f
Parameter Name Object Description Limits
Return Air
Temperature
Sensor Offset
RaTpOst Analog
Input
If the Return
Temperature
Sensor is
reading
incorrectly, use
this to enter an
offset to adjust
the Sensor’s
Temperature.
-100 100
Bad Return
Air Sensor
RaTpAlm Binary
Output Indicates a
failure of the
Return Air
Sensor.
Return Bypass
Damper
Position
RetBydmp Analog
Output
Current Return
Bypass Damper
position.
Schedule
Force
SchdFrc Analog
Input
0 = Auto (uses
controller’s
schedule)
1 = Forced
Occupied
2 = Forced
Unoccupied
0 2
Current Slide
Adjust Offset SldAdOfs Analog
Output
Current Slide
Adjust Offset
value.
Smoke Alarm
/ Emergency
Shutdown
SmokeAlm Binary
Output Indicates the
Smoke sen-
sor has been
activated. This
will shut down
the unit.
Space
Temperature
SpcTp Analog
Output
Current value
of the space
temperature
sensor.
Space
Temperature
Offset
SpcTpOst Analog
Input
If the Space
Temperature
Sensor is
reading
incorrectly, use
this option to
enter an offset
to adjust the
Sensor’s
Temperature.
-100 100
Space
Temperature
Sensor
Lost
SpcTpAlm Binary
Output Indicates
a failure of the
Space Tempera-
ture Sensor.
Static
Pressure
StaticPr Analog
Output
Current Static
Pressure.
Static
Pressure
Setpoint
StatPrSt Analog
Input
Current Static
Pressure
Setpoint.
.10 3.0
Revised 7/7/14