Orion System PT-Link II BACnet2 - Manual (Page 43)

PT-Link II Interface
PT-Link II BACnet ® Technical Guide
43
Appendix F - VCM-X BACnet Parameters
BACnet Properties for the VCM-X Controller
Parameter Name Object Description Limits
Modulating
Cool
Position
MdClPos AI: 115 Current position of
the modulating
cooling signal
(Chilled water or
digital compressor).
Modulating
Heat
Position
MdHtPos AI: 116 Current position of
the modulating
heating signal (hot
water or SCR heat).
Unit Mode UnitMode AI: 123 See page 47.
Return Air
CO
2
Level
CO2Level AI: 150 Current value of the
CO
2
sensor.
Bypass
Damper
Position
ByPas-
Dmp
AI: 153 Current position of
the bypass damper
signal.
Return
Damper
Position
RaDmp AI: 154 Current position of
the return damper
signal.
Coil
Temperature
CoilTp AI: 181 Current coil
temperature reading
added on version
1.09.
Outdoor Air
CFM
OaCFM AI: 193 Current Outdoor
Airfl ow
Measurement
Exhaust
CFM
EtCFM AI: 194 Current Exhaust
Airfl ow
Measurement
Supply Air
CFM
SaCFM AI: 195 Current Supply
Airfl ow
Measurement
Current
Calculated
OA CFM
setpoint
OACfm-
StM
AI: 205 Current calculated
Outdoor Air CFM
based on CO
2
level.
Dewpoint
Setpoint
DptSt AV: 13 If the outdoor
dewpoint rises
above this setpoint,
the unit will
activate the
Dehumidifi cation
Demand.
35 80
Occupied/
Mode
Enable
Cooling
Setpoint
OcpClSt AV: 42 If the control tem-
perature rises one
degree above this
setpoint, the control
will activate the
cooling demand. If
the control tempera-
ture is the Supply
Air Sensor, then the
cooling demand is
always active.
0 99
BACnet Properties for the VCM-X Controller
Parameter Name Object Description Limits
Occupied/
Mode
Enable
Heating
Setpoint
OcpHtSt AV: 43 If the control
temperature drops
one degree below
this setpoint,
the control will
activate the heating
demand. If the
control
temperature
is the Supply Air
Sensor, then there is
no heating demand.
0 99
Outdoor
Air Sensor
Offset
OaTpOst AV: 53 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
Return
Air Sensor
Offset
RaTpOst AV: 65 If the Return Tem-
perature Sensor is
reading incorrectly,
you can use this
option to enter an
offset temperature
to adjust the Sen-
sor’s Temperature.
-100 100
Schedule
Force
SchdFrc AV: 66 0 = Auto/
Unoccupied Mode
1 = Forced On
2 = Forced Off
0 2
Space
Sensor
Offset
SpcTpOst AV: 71 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
SAT
Cooling
Setpoint
SaClSt AV: 77 Supply Air Setpoint
in Cooling Mode.
40 80
SAT
Heating
Setpoint
SaHtSt AV: 78 Supply Air Setpoint
in Heating Mode.
40 200
Supply
Air Sensor
Offset
SaTpOst AV: 80 If the Supply Air
Temperature Sensor
is reading incor-
rectly, you can use
this option to enter
an offset
temperature to
adjust the Sensor’s
Temperature.
-100 100
Revised 11/16/10